IEEE - Chair: Vice Chair: Secretary: Treasurer: Greg ...grouper.ieee.org/groups/transformers/meetings/F2017...for the latest revision of the unapproved and the minutes of the next

Transformers Committee

Chair: Stephen Antosz Vice Chair: Sue McNelly Secretary: Bruce Forsyth Treasurer: Greg Anderson Awards Chair/Past Chair: Don Platts Standards Coordinator: Jim Graham

IEEE/PES Transformers

Committee

Fall 2017 Meeting Minutes

Louisville, KY October 30 – November 2, 2017

Unapproved (These minutes are on the agenda to be approved at the next meeting in Spring 2018)

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TABLE OF CONTENTS

GENERAL ADMINISTRATIVE ITEMS

1.0 Agenda 2.0 Attendance

OPENING SESSION – MONDAY OCTOBER 30, 2017

3.0 Approval of Agenda and Previous Minutes – Stephen Antosz 4.0 Chair’s Remarks & Report – Stephen Antosz 5.0 Vice Chair’s Report – Susan McNelly 6.0 Secretary’s Report – Bruce Forsyth 7.0 Treasurer’s Report – Gregory Anderson 8.0 Awards Report – Don Platts 9.0 Administrative SC Meeting Report – Stephen Antosz 10.0 Standards Report – Jim Graham 11.0 Liaison Reports

11.1. CIGRE – Raj Ahuja 11.2. IEC TC14 – Phil Hopkinson 11.3. Standards Coordinating Committee, SCC No. 18 (NFPA/NEC) – David Brender 11.4. Standards Coordinating Committee, SCC No. 4 (Electrical Insulation) – Paulette

Payne Powell 12.0 Hot Topics for the Upcoming – Subcommittee Chairs 13.0 Opening Session Adjournment

CLOSING SESSION – THURSDAY NOVEMBER 2, 2017

14.0 Chair’s Remarks and Announcements – Stephen Antosz 15.0 Meetings Planning SC Minutes & Report – Gregory Anderson 16.0 Reports from Technical Subcommittees (decisions made during the week) 17.0 Report from Standards Subcommittee (issues from the week) 18.0 New Business 19.0 Closing Session Adjournment

APPENDIXES – ADDITIONAL DOCUMENTATION

Appendix 1 – Meeting Schedule Appendix 2 – Semi-Annual Standards Report Appendix 3 – IEC TC14 Liaison Report Appendix 4 – CIGRE Report

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ANNEXES – UNAPPROVED MINUTES OF TECHNICAL SUBCOMMITTEES

NOTE: The Annexes included in these minutes are unapproved by the respective subcommittees and are accurate as of the date the Transformers Committee meeting minutes were published. Readers are encouraged to check the Transformers Committee website (www.transformerscommittee.org) for the latest revision of the unapproved and the minutes of the next Transformers Committee meeting for final revisions prior to approval.

Annex A. Bushings SC – Peter Zhao Annex B. Dielectric Tests SC – Ajith Varghese Annex C. Distribution Transformers SC – Steve Shull Annex D. Dry Type Transformers SC – Charles Johnson Annex E. HVDC Converter Transformers & Reactors – Mike Sharp Annex F. Instrument Transformers SC – Ross McTaggart Annex G. Insulating Fluids SC – David Wallach Annex H. Insulation Life SC – Sheldon Kennedy Annex I. Meetings SC – Greg Anderson Annex J. Performance Characteristics SC – Ed teNyenhuis Annex K. Power Transformers SC – Bill Griesacker Annex L. Standards SC – Jerry Murphy Annex M. Underground Trans & Network Protectors SC – Dan Mulkey

http://www.transformerscommittee.org/

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General Administrative Items

1.0 AGENDA

Opening Session Monday, October 30; 8:00 am - 9:15 am (rosters were circulated and attendance recorded for Committee membership) 1. Welcome and Announcements ..................................................................... Stephen Antosz 2. Meeting Minute .............................................................................................. Greg Anderson 3. Approval of Agenda ...................................................................................... Stephen Antosz 4. Approval of Minutes from Spring 2017 Meeting ......................................... Stephen Antosz 5. Chair’s Report & Administrative Subcommittee Report .............................. Stephen Antosz 6. Vice Chair’s Report ...................................................................................... Sue McNelly 7. Secretary's Report ......................................................................................... Bruce Forsyth 8. Treasurer's Report ......................................................................................... Greg Anderson 9. Standards Report ........................................................................................... Jim Graham 10. Liaison Representative Reports

10.1. CIGRE .............................................................................................. Raj Ahuja 10.2. IEC TC-14 ........................................................................................ Phil Hopkinson 10.3. Standards Coordinating Committee, SCC No. 18 (NFPA/NEC) ..... David Brender 10.4. Standards Coordinating Committee, SCC No. 4 (Elect. Ins’n) ........ Evanne Wang

11. Hot Topics for the Upcoming Week ............................................................. Subcommittee Chairs 12. New Business & Wrap-up ............................................................................ Stephen Antosz

Closing Session Thursday, November 2, 2017: 11:00 am - 12:00 pm 1. Chair's Remarks and Announcements .......................................................... Stephen Antosz 2. Meetings Planning Subcommittee ................................................................ Greg Anderson 3. Reports from Technical Subcommittees (decisions made during the week)

3.1 Insulation Life .................................................................................. Sheldon Kennedy 3.2 Performance Characteristics ............................................................ Ed teNyenhuis 3.3 Power Transformers ......................................................................... Bill Griesacker 3.4 Standards ........................................................................................... Jerry Murphy 3.5 Subsurface Transformers & Network Protectors ............................. Dan Mulkey 3.6 Bushings ........................................................................................... Peter Zhao 3.7 Dielectric Tests ................................................................................ Ajith Varghese 3.8 Distribution Transformers ................................................................ Steve Shull 3.9 Dry Type Transformers ................................................................... Chuck Johnson 3.10 HVDC Converter Transformers & Reactors .................................... Mike Sharp 3.11 Instrument Transformers .................................................................. Ross McTaggart 3.12 Insulating Fluids .............................................................................. David Wallach

4. Additional Report from Standards Subcommittee (issues from the week) ... Jim Graham 5. New Business (continued from Monday) and Wrap-up ............................... Stephen Antosz

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2.0 ATTENDANCE

COMMITTEE MEMBER ATTENDANCE

The following table lists all Committee Members registered to attend the meeting. See section 2.2 for a list of non-Committee Members registered to attend the meeting.

Legend: CM Committee Member CM-LM Committee Member-IEEE Life Member CM-EM Committee Member-Emeritus

Committee Member Attendance (Red designates CM added at present meeting) Member

Type Name Company Mon Thu CM Anderson, Gregory GW Anderson & Associates, Inc. X X CM Ansari, Tauhid ABB Inc. X CM Antosz, Stephen Stephen Antosz & Associates, Inc X X CM Arteaga, Javier ABB Inc. X

CM-LM Ayers, Donald Ayers Transformer Consulting X X CM Ballard, Robert Federal Pacific X X CM Balma, Peter Retired CM Beaster, Barry H-J Enterprises, Inc. X CM Beauchemin, Claude TJH2b Analytical Services X CM Betancourt, Enrique Prolec GE X X

CM-LM Binder, Wallace WBBinder Consultant X X CM-LM Blackburn, Thomas Gene Blackburn Engineering X X

CM Blaydon, Daniel Baltimore Gas & Electric X X CM-LM Boettger, William Boettger Transformer Consulting LLC X X

CM Boman, Paul Hartford Steam Boiler X X CM Brender, David Copper Development Assn. X

CM-LM Bush, Carl Pemco Corporation X X CM Callsen, Thomas Weldy-Lamont Associates X X CM Castellanos, Juan Prolec GE X X CM Cheim, Luiz ABB Inc. X CM Chiang, Solomon The Gund Company X CM Claiborne, C. Clair Claiborne Consulting LLC X CM Colopy, Craig EATON Corporation X X CM Crotty, John Ameren X X CM Damico, Frank Boldrocchi APC X CM Davis, Eric Burns & McDonnell X CM Del Rio, J. Arturo Trench Limited X X CM Denzer, Stephanie General Electric X CM Digby, Scott Duke Energy X X CM Dix, Larry Quality Switch, Inc. X X CM Dorris, Don Nashville Electric Service X X

CM-LM Fairris, James KMS Electrical Products X CM Faulkenberry, Michael Georgia Power Co. X CM Ferreira, Marcos Advisian-Worley Parsons X X

CM-LM Foldi, Joseph Foldi & Associates, Inc. X CM Forsyth, Bruce Weidmann Electrical Technology X X

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Type Name Company Mon Thu CM Foster, Derek Magnetics Design, LLC X CM Garcia, Eduardo Siemens X X CM Gardner, James SPX Transformer Solutions, Inc. X X CM Gaytan, Carlos Prolec GE X CM Ghafourian, Ali H-J Enterprises, Inc, X CM Ghosh, Rob ESSEX GROUP INC. X X

CM-LM Girgis, Ramsis ABB Inc. X X CM Golarz, Jeffrey PJ Associates X X CM Graham, James Weidmann Electrical Technology CM Griesacker, Bill Doble Engineering Co. X X CM Gromlovits, Mark EMC OEM Products Division CM Hachichi, Said Hydro-Quebec X X CM Hakim, Shamaun WEG Transformers USA Inc. X CM Hardin, Michael H-J Enterprises, Inc. X CM Harley, John FirstPower Group LLC X X

CM-LM Harlow, James Harlow Engineering Associates X CM Hayes, Roger General Electric X X CM Hernandez, Ronald Doble Engineering Co. X CM Herron, John Raytech USA X X CM Herz, Joshua Qualitrol X X CM Hochanh, Thang Surplec Inc. X X CM Hoffman, Gary Advanced Power Technologies X

CM-LM Hopkinson, Philip HVOLT Inc. X CM Iman, Mohammad MGM Transformer Company X CM John, John Virginia Transformer Corp. X X CM Johnson, Charles ABB Inc. X CM Jordan, Stephen Tennessee Valley Authority X X CM Kaineder, Kurt Siemens AG X X

CM-LM Kennedy, Gael GR Kennedy & Associates LLC X X CM Kennedy, Sheldon Niagara Transformer X X CM King, Gary Howard Industries X X CM Kinner, Robert FirstPower Group LLC X CM Kiparizoski, Zan Howard Industries X CM Klaponski, Brian Carte International Inc. X CM Kraemer, Axel Maschinenfabrik Reinhausen X X CM Kraetge, Alexander OMICRON electronics Deutschland GmbH X X

CM-LM Lackey, John PowerNex Associates Inc. X CM Lau, Michael Weidmann Electrical Technology X X CM Levin, Aleksandr Weidmann Electrical Technology X X CM Li, Weijun Braintree Electric Light Dept. X

CM-LM Lowdermilk, Larry LAL International, LLC X CM Mani, Kumar Duke Energy X X

CM-LM Marek, Richard DuPont X X CM Matthews, Lee Howard Industries X X CM McClure, Phillip Weschler Instruments X CM McNelly, Susan Xcel Energy X X CM McShane, Charles Patrick Cargill, Inc. X X CM McTaggart, Ross Trench Limited X X

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Type Name Company Mon Thu CM Mehrotra, Vinay SPX Transformer Solutions, Inc. X X CM Melle, Thomas HIGHVOLT X

CM-LM Miller, Kent T&R Electric Supply Co. X X CM Mulkey, Daniel Mulkey Engineering Inc X X CM Murray, David Tennessee Valley Authority X X CM Musgrove, Ryan Oklahoma Gas & Electric X X CM Naderian, Ali Metsco X CM Nambi, Shankar Bechtel X X CM Narawane, Aniruddha WEG Transformers USA Inc. X CM Parkinson, Dwight EATON Corporation X X CM Patel, Poorvi ABB Inc. X CM Patel, Sanjay Royal Smit Transformers X CM Payerle, George Carte International Inc. X X CM Penny, Brian American Transmission Co. X X CM Perjanik, Nicholas Weidmann Electrical Technology X

CM-LM Platts, Donald OMICRON electronics Corp USA X X CM Ploetner, Christoph ABB AG X X CM Pointner, Klaus Trench Austria GmbH X X CM Prevost, Thomas Weidmann Electrical Technology X X CM Radbrandt, Ulf ABB AB X X CM Rasco, Jimmy Ergon, Inc. X CM Rasor, Robert S.D. Myers Inc. X CM Rave, Martin ComEd X CM Ray, Jeffrey JLR Consulting, Inc. X CM Reed, Scott MVA Diagnostics, Inc. X CM Riffon, Pierre Pierre Riffon Consultant Inc. X CM Robalino, Diego Megger X X CM Roussell, Marnie Entergy X CM Sampat, Mahesh EMS Consulting Inc. X CM Sankarakurup, Dinesh Niagara Transformer X X CM Sarkar, Amitabh Virginia Transformer Corp. X CM Sauer, Daniel EATON Corporation X X CM Sauzay, Mathieu JST Transformateurs X X CM Schroeder, Stephen ABB Inc. X CM Schweiger, Ewald Siemens AG X CM Sewell, Adam Quality Switch, Inc. X CM Sewell, Jeremy Quality Switch, Inc. X X

CM-LM Sharma, Devki Entergy X CM Sharp, Michael Trench Limited X X CM Sharpless, Samuel Rimkus Consulting Group X X CM Shertukde, Hemchandra University of Hartford X CM Shull, Stephen The Empire District Electric Co. X X CM Sizemore, Thomas ABB Inc. X X CM Smith, Edward The H-J Family of Companies X X CM Snyder, Steven ABB Inc. X X CM Solano, William Siemens Energy X CM Som, Sanjib Pennsylvania Transformer X X CM Spitzer, Thomas City Transformer Service Co. X

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Type Name Company Mon Thu CM-LM Stahara, Ronald Stahara Consulting X

CM Stiegemeier, Craig ABB Inc. X X CM Stinson, Robert General Electric X X CM Sweetser, Charles OMICRON electronics Corp USA X X CM Swinderman, Craig Mitsubishi Electric Power Products X CM Tanaka, Troy Burns & McDonnell X

CM-LM Tendulkar, Vijay ONYX, a Division of Smiths Power X CM teNyenhuis, Ed ABB Inc. X X CM Termini, Giuseppe PECO Energy Company X X CM Thibault, Michael Pacific Gas & Electric X CM Thompson, Robert RST Consulting, P.C. X X CM Tostrud, Mark Dynamic Ratings, Inc. X X CM Traut, Alan Power Partners X X CM Varghese, Ajith SPX Transformer Solutions, Inc. X X CM Vedante, Kiran Mitsubishi Electric Power Products X CM Verdell, Joshua ERMCO X X CM Verdolin, Rogerio Verdolin Solutions Inc. X X CM Vijayan, Krishnamurthy PTI Manitoba Inc. X X CM Vir, Dharam SPX Transformer Solutions, Inc. X X

CM-LM Walia, Sukhdev EATON Corporation X CM Wallace, David Mississippi State University X CM Wallach, David Duke Energy X X CM Watson, Joe JD Watson and Associates Inc. X X CM Weatherbee, Eric PCORE Electric CM Weisensee, Matthew PacifiCorp X X CM Wicks, Roger DuPont X X

CM-LM Wilks, Alan Consultant X X CM Wimmer, William Dominion X CM Woods, Deanna Alliant Energy CM Xu, Shuzhen FM Global CM Yang, Baitun Pennsylvania Transformer X X CM Yule, Kipp Bechtel CM Zhang, Shibao PCORE Electric CM Zhao, Peter Hydro One X X

Total Members present: 156 98 % of Members Present of 218 members: 72% 45%

Based upon the above attendance totals: Quorum was achieved at Monday Opening Session. Quorum not achieved at Thursday Closing Session.

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GENERAL ATTENDANCE

The following table lists all non-Committee Members registered to attend the meeting. See section 2.1 for a list of Committee Members registered to attend the meeting.

Legend: AP Active Participant AP-LM Active Participant-IEEE Life Member II Interested Individual II-LM Interested Individual-IEEE Life Member PCM Past Committee Member

General Attendance Member

Type Name Company Mon Thu II Abbott, Scott PPG Industries II Abdelkamel, Hamid Ameren X II Adkins, Joseph HICO America X

AP Ahmed, Omar Transformer Protector Corp X X II Aikens, Thomas Virginia Transformer Corp. II Al Yousuf, Mohammed Exelon-Delmarva Power X

AP Allen, Jerry Metglas, Inc. II Antosz, Steve Pennsylvania Transformer X

AP Antweiler, James Schneider Electric X II Arnold, Elise Starkstrom-Geraetebau GmbH X II Attard, Jason Consolidated Edison Co. of NY X

AP Averitt, Ralph (Steve) ICMI, Inc. (Reinhausen) X II Bae, Young Wook Hyosung / HICO X X II Balban, Sinan Oz Direnc Ltd

AP Baranowski, Derek Baron USA, LLC II Bargone, Gilles FISO Technologies Inc. X II Barnes, Jeff Norplex-Micarta X II Barret, Nicolas JST Transformateurs II Barrientos, Israel Prolec GE X

AP Bartek, Allan C-K Composites X II Basel, Cheryl WEG Transformers USA Inc. X II Bates, Danny ZTZ Services International II Baugus, John Sharp Control Services, LLC X X II Beck, Scott LakeView Metals, Inc.

AP Behrens, Tammy SPX Transformer Solutions, Inc. AP Bell, Myron Delta Star Inc. X AP Benach, Jeffrey Weidmann Electrical Technology II Berkhan, Karen M&I Materials, Inc. X II Berler, Daniel ZTZ Services International

AP Bernesjo, Mats ABB Inc. X II Biggie, Kevin Weidmann Electrical Technology X X

AP Bigham, Lee Instrument Transformer Equip Corp II Bin, Jackie Magnetics Design, LLC X

AP Blackwell, Zack TCI Sales, Inc. AP Blake, Dennis Pennsylvania Transformer X II Blaszczyk, Piotr The Specialty Switch Co LLC

AP Boege, Alan Orto de Mexico X

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Type Name Company Mon Thu II Bolar, Sanket Megger X

AP Bolliger, Alain HV Technologies, Inc. X AP Bradford, Ira Pennsylvania Transformer AP Bradshaw, Jeremiah Bureau of Reclamation II Brannen, Randy Southern Company Transmission X

AP Brinkman, Steve Cindus Corp. X AP Britton, Jeffrey Phenix Technologies, Inc. X X AP Brown, Darren Howard Industries X II Brown, Duane Measurements International Ltd. X II Bruno, Mirvil ABB Inc.

AP Brusetti, Robert Doble Engineering Co. X II Bryant, Ray Raytech USA X II Brzoznowski, Steven Bonneville Power Administration X II Buddingh, Paul Paul Buddingh & Associates II Burns, Andrew Edwards Moving and Rigging II Burns, Curtis Burns Power Consulting, LLC X

AP Cai, Jim JSHP Transformer X AP Cantrell, Rick Sunbelt Transformer II Carpenter, Erin Electric Power Systems

AP Caskey, John NEMA II Casserly, Edward Ergon, Inc.

AP Castillo, Alonso M&I Materials, Inc. X II Caverly, David Trench Limited

AP Chakraborty, Arup Delta Star Inc. X X II Chambers, Stuart Powertech Labs Inc. X

AP Chapa, Raymundo WEG Electric Corp. X AP Cheatham, Jonathan General Electric II Cheema, Muhammad Ali Northern Transformer Corporation X X II Chiodo, Vincent HICO America

AP Chisholm, John IFD Corporation X II Cho, Eun HICO America X

AP Christodoulou, Larry Electric Power Systems X X AP Chrysler, Rhett ERMCO X AP Clonts, Jermaine Power Partners X X AP Collin, Jean-Francois Nomos Systems AP Corsi, Domenico Doble Engineering Co. X AP Costa, Florian Corimpex USA, Inc. X II Craig, Douglas Richards Manufacturing Co.

AP Craven, Michael Phoenix Engineering Services X X II Cross, James Kinectrics II Cruz Cienfuegos, Jorge Partner Technologies Inc. X II Cui, Yuanzhong TBEA Shenyang X

AP Cunningham, Kelcie Delta Star Inc. AP Dahlke, Michael Central Moloney, Inc. X X AP Daniels, Timothy Weidmann Electrical Technology II Dauzat, Thomas General Electric X X II De Oliveira, Everton Siemens Ltda X X II DelValle, Ruben NV Energy X

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Type Name Company Mon Thu II Demes, Rolando Arteche II DeMillion, Maggi Siemens Energy II Dennis, Scott ABB Inc. X II DeRouen, Craig ERMCO X

AP Dhawan, Anil ComEd X X II Di Biase, Antonio Tempel X

AP Diaby, Mohamed ABB Inc. II Diaz, Rodolfo Hitachi TDS X X II Dolloff, Paul East Kentucky Power X X

AP Dorpmanns, Luc SMIT Transformatoren B.V. X II Dorsten, James Alabama Power X X II Doyle, Lee Vaisala II Drobnick, Jason Jordan Transformer X

AP-LM Dukarm, James Delta-X Research Inc. X II Dulac, Hakim Qualitrol X X II Dupuis, Brandon OMICRON Electronics Corp USA

AP-LM Duval, Michel Hydro-Quebec IREQ II Ebbert, Alexander Virginia Transformer Corp. X II Elassad, Yann M.S. Resistances II Elder, Penny Utility Agency & Import (UAI)

AP Elliott, Will General Electric X II Esparza, Eugenio Partner Technologies Inc.

AP Euvrard, Eric RHM International II Faherty, Joseph OTC Services X

AP Faulkner, Mark EATON Corporation II Faur, Florin ABB Inc. X

AP Fausch, Reto RF Solutions X X AP Fedor, Ken Smit Transformer Sales, Inc. X II Fennell, Howard Nashville Electric Service X II Fenton, Roger City of Riverside II Ferguson, Glenn Efacec USA

AP Field, Norman Teshmont Consultants LP II Fields, Ryan E. Kentucky Power Cooperative X X

AP Flores, Hugo WEG Transformers USA Inc. II Foata, Marc Maschinenfabrik Reinhausen X II Ford, Seaira Baron USA, LLC

AP-LM Forrest, George Uptime Solutions Co, LLC X II Foschia, John SPX Transformer Solutions, Inc. X II Franchitti, Anthony PECO Energy Company X X

AP Frotscher, Rainer Maschinenfabrik Reinhausen AP Gagnon, Jean-Francois Siemens Transformers Canada AP Galbraith, Shawn Nuclear Service Organization X II Galhardo, Leonardo DuPont X X II Gamboa, Jose Siemens Energy X X

AP Garcia, Benjamin Southern California Edison II Garcia, David EATON Corporation X II Garneau, Jean Essex Wire X II Gaun, Alexander Coil Innovation

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Type Name Company Mon Thu II Gehrmann, Clinton Instrument Transformer Equip Corp

AP Geibel, David ABB Inc. X X II Gelinas, Sylvain Modine (Coiltech) II Giang, Rebecca The Sherwin-Williams Company

AP Golner, Thomas SPX Transformer Solutions, Inc. X X II Gonzalez Ceballos, Jose Antonio Meramec Instrument Transformer Co. X

AP Gonzalez de la Vega, Jorge Orto de Mexico X II Goulkhah, Monty Trench Canada X II Goydich, Shane Roechling

AP Gross, Detlev Power Diagnostix X AP Guner, Ismail Hydro-Quebec X X II Hall, John Tennessee Valley Authority X X II Hall, Paul LG&E and KU Energy

AP Hamilton, Kendrick Power Partners AP Harder, Steven Siemens Energy II Havens, Bridget Ameren X II Helton, Jerry LG&E and KU Energy II Henault, Paul IFD Corporation X II Hennessey, John Cindus Corp. X II Henry, Jeffery Mapes & Sprowl II Ho, Patrick Powertech Labs Inc. II Holden, Andrew Ergon, Inc. X II Hummel, Carl HICO America II Humphrey, Eric Electro Composites ULC II Huynh, Sikhiu Pacificorp X II Hwangbo, Seong-wook Hyundai Electric X II Jackson, Jerry 3M

AP Jacob, Nathan Manitoba Hydro X AP Jakob, Fredi Consultant II Jakob, Karl Delta Star Inc.

AP Jarman, Paul National Grid X X AP Jaroszewski, Marion Delta Star Inc. X II Ji, Jullian JSHP Transformer X

AP Johnson, Derek Reinhausen Mfg. X II Johnson, Toby Pacificorp X

AP Johnstone, Ted Cogent Power Inc. X II Jones, Grace Delta Star Inc. X II Joshi, Akash Black & Veatch X

AP Joshi, Arvin General Electric II Kadowaki, Makato Hitachi, Ltd. X II Kadowaki, Makoto Hitachi, Ltd. X II Kanty, Stephen Isberg & Associates, Inc X II Kenney, Keith Solomon Corporation II Kessler, Stacey Basin Electric Power Cooperative X

AP Kirchenmayer, Egon Siemens AG X AP Kirchner, Lawrence Siemens Industry X II Kittrell, Brad Consolidated Edison Co. of NY X II Klein, Kenneth PDI/ONYX X X

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Type Name Company Mon Thu II Kleine, Peter US Army Corps of Engineers X II Knapp, Catherine Cogent Power Inc.

AP Kornowski, Marek Polycast International II Korte, Steve Cargill, Inc. II Koshel, Anton Delta Star Inc. X II Kostich, Nicholas Ameren X

AP Kranich, Neil Jordan Transformer X II Kremer, Daniel Phenix Technologies, Inc. II Kumaria, Deepak ABB Inc. X X II Kuntz, Robert HICO America II Kuppuswamy, Raja Dynamic Ratings Inc. X

AP Lachman, Mark Doble Engineering Co. X II Lajus, Eric JST Transformateurs II Lamontagne, Donald Arizona Public Service Co. X II Lamorey, Maria PPG Industries

AP Lawless, Andrew Covested International II Leal, Fernando Prolec GE X

AP Leal, Gustavo Dominion Energy X II Lecomte, Antoine JST Transformateurs X

AP Lee, So-young Hyundai Electric X II Levi, Raka AMforum X II Li, Qian Shanghai Huaming Power Equipment X II Liu, Chien Chih Shihlin Electric

AP Lively, Parry Tempel X AP Locarno, Mario Doble Engineering Co. X AP Lopes, Ana Efacec Energia, SA II Lopes, Ricardo Efacec Energia, SA II Lopez, Salvador Condumex IEM II Lu, William Shanghai Huaming Power Equipment

AP Lugge, Andrew Mitsubishi Electric Power Products II Lukenda, Nikola Petro-Canada Lubricants X II Luksich, John -- X

AP Macdonald, Nigel Trench Limited X AP Macias, Alejandro CenterPoint Energy X X II Mai, Tim-Felix Siemens AG X X II Malde, Jinesh M&I Materials Inc. X X II Malinowski, Mateusz ICF X

AP Mango, Joseph NextEra Energy Resources AP Marquardt, Bryan AK Steel X AP Martin, Terence Doble Engineering Co. X AP Martin, Zach Delta Star Inc. II Martinez, Apollonia Public Service Co. of New Mexico II Martinez, Bene Metglas, Inc. II Martinez, Rogelio Georgia Transformer

II-LM Marx, Sr., Robert Marx Associates, Inc. II Mayer, Robert Siemens AG X II McBride, Brian Cargill, Inc.

AP McBride, James JMX Services, Inc. X

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Type Name Company Mon Thu II McCarrick, Brian VanTran Transformers X

AP McCullough, Douglas Maxima / Hyundai X II McGlew, Barry Cargill Industrial Specialties (CIS)

AP Mciver, James Siemens Energy X II McKinney, Kenneth UL LLC X II Medina, Juan Pablo Olsun Electrics Corporation X

PCM-LM Mehta, Shirish Mehta Consultants X II Menzies, Barry M&I Materials Ltd X II Middleton, Robert RHM International

AP Miller, Michael Siemens Industry, Inc. AP Minhaz, Rashed Transformer Consulting Services Inc. X II Minikel, Justin Eaton X II Misur, Slobodan Trench Limited X

AP Montanha, Juliano Siemens Ltda X X II Montoya Castillo, Ricardo Siemens Energy II Montpool, Rhea Schneider Electric X

AP Morales-Cruz, Emilio Qualitrol X X AP Morgan, Charles Eversource Energy X X II Morris, Tim Walton EMC X II Morrison, Richard Utility Agency & Import (UAI)

AP Mullikin, Randolph ABB Inc. II Munn, William Southern Company Services II Munoz Molina, Martin Orto de Mexico X

AP Mushill, Paul Ameren X AP Neild, Kristopher Megger X X II Nguyen, Nam Tran ABB Inc. X X

AP Nikoley, Ingo Electrical Consultants, Inc. AP Nims, Joe Allen & Hoshall, Inc. X AP Nunez, Arturo Mistras Group, Inc. II Nunn, Kraig ShockWatch X

AP Oakes, Stephen Instrument Transformer Equip Corp X X II Ocon, Rodrigo Industrias IEM X II Ojeda, Sam LumaSense Tech. X

AP Oliver, William Virginia Transformer Corp. X II O'Malley, Anastasia Consolidated Edison Co. of NY X X

AP Ortiz, Jow NextEra Energy AP Panetta, Sergio I Gard Corporation II Pargaonkar, Vijay Virginia Transformer Corp. X X II Park, Jaeseung Hyundai Electric X II Partyka, George Partner Technologies Inc. X

AP Patel, Dhiru Hammond Power Solutions II Patel, Nitesh Hyundai Power Transformers USA X II Patni, Prem NV Energy X

AP Patoine, Barbara Weidmann Electrical Technology X X II Patry, Daniel FISO Technologies Inc. X

AP Pepe, Harry Phenix Technologies, Inc. X X II Pereira, Paulo Efacec Energia, SA II Perrott, Timothy NYCO America

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Type Name Company Mon Thu AP Peterson, Alan Utility Service Corporation X II Pitts, Chris Howard Industries II Plath, Cornelius OMICRON electronics GmbH X II Portillo, Homero Advanced Power Technologies X II Powell, Karmen LG&E and KU Energy

AP Prince, Jarrod ERMCO X II Prykhodko, Volodymyr ZTZ Services International X

AP Quandel, Jennifer HPN Global II Radu, Ion ABB Inc. X II Rahangdale, Ravi Pennsylvania Transformer II Raines, Summar ABB Inc. II Ramirez, Juan CELECO X

AP Rashid, Adnan Measurement Canada/Industry Canada X II Ratcliffe, Robert Georgia Transformer

AP Rathi, Rakesh Virginia Transformer Corp. X X II Rato, Nuno Efacec Energia, SA II Ratty, James Electronic Technology Inc.

AP Razuvayev, Sergiy Delta Star Inc. II Reagan, John Duke Energy X X

AP Reiss IV, Clemens Custom Materials, Inc. X II Reynolds, Robin Hoosier Energy X II Ricci, Anthony FirstEnergy Corp X X

AP Riopel, Sebastien Electro Composites ULC II Riordan, Kevin WEG Transformers USA Inc. X II Rios, Diana ZTZ Services International

AP Rivers, Mark Doble Engineering Co. X II Roberts, Paul Baron USA, LLC X

AP Robey, Dennis RL Components II Robles, Eduardo EATON Corporation X

AP Rock, Patrick American Transmission Co. X X II Rodriguez Sanchez, Andrea ABB AB

AP Roman, Zoltan General Electric AP Ronchi, Rodrigo WEG-Voltran X X AP Rottenbacher, Andre Ritz Insrument Transformers II Saad, Mickel ABB Inc. X X

AP Sahin, Hakan ABB Inc. X II Salgado, Pedro Electronic Technology Inc. II Saliba, Joseph Nashville Electric Service X II Salmon, William Dominion Energy II Salva, Jose JST Transformateurs X X II Sanchez, Daniel Siemens X II Sanchez, Eduardo Pacific Gas & Electric X II Sanchez, Oliverio Pacific Gas & Electric X II Sandhu, Surinder Sanergy Consulting X

AP Sbravati, Alan Cargill X X AP Scardazzi, Alaor Siemens Ltda X AP Schiessl, Markus Starkstrom-Geraetebau GmbH X X AP Schrammel, Alfons Siemens Transformers X

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Type Name Company Mon Thu II Schrom, Wesley Carolina Dielectric Maint & Testing Co. X II Schwartz, Dan Quality Switch, Inc. X X II Schwarz, Carl Phoenix Electric Corporation II Scoby, Denny PG Access X II Selvaraj, Pugazhenthi Virginia Transformer Corp. X X II Sen, Cihangir Duke Energy X

AP Sewell, Russell Quality Switch, Inc. X II Shahrodi, Abe Power Magnetronics Solutions X II Shalabi, Jaber VanTran Industries, Inc. X

AP Shannon, Michael Rea Magnet Wire II Sharifi, Masoud Siemens Wind X II Sheehan, David HICO America X

AP Shem-Tov, Mark VRT Power X AP Sheridan, Peter SGB USA, Inc. X II Shin, Jane Consolidated Edison Co. of NY X

AP Shirasaka, Yukiyasu Hitachi Ltd. X X AP Siebert, Stefan BROCKHAUS MESSTECHNIK X II Siebert-Timmer, Audrey IFD Corporation X X

AP Simon, Preston Electrical Technologies AP Simonelli, Richard SPX Transformer Solutions, Inc. II Simonov, Igor Toronto Hydro X X II Simons, Andre Cogent Power Inc. X II Skinger, Kenneth Scituate Consulting, Inc. X X

AP Slattery, Christopher FirstEnergy Corp X II Smith, Jeremy GE Engineering Services X X

AP Smith, K. Shane Delta Star Inc. X II Snyder, Nik LG&E and KU Energy

AP Sohn, Yong Tae Hyosung / HICO X X AP Sparling, Brian Dynamic Ratings, Inc. X II Spaulding, James City of Fort Collins X

AP Speegle, Andy Entergy Services Inc. II Spoorenberg, Cees SMIT Transformatoren B.V. X

AP Stacy, Fabian ABB Inc. X X II Staley, Brad Salt River Project X X

AP Stank, Markus Maschinenfabrik Reinhausen X X AP Stankes, David 3M X II Steeves, Gregory Baron USA, LLC X X

AP Steineman, Andrew Delta Star Inc. X X AP Steineman, Christopher Meramec Instrument Transformer Co. X AP Stem, Gregory Cardinal Pumps & Exchangers X II Stevens, Chuck Petro-Canada America

AP Stockton, David H-J Family of Companies X II Stuber, Tina ABB Inc. X II Su, Roy Fortune Electric X X II Subramany, Shankar KEMA Laboratories, DNV GL X II Suddarth, Wes Nashville Electric Service X

AP Sullivan, Christopher Westmark Partners X AP Sullivan, Kevin Duke Energy X

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Type Name Company Mon Thu II Sullivan, Liz ABB Inc. X II Sun, Yunhan China Elect. Equip. Industry Assoc. X

AP Sundin, David Engineered Fluids, LLC X II Suresh, Babanna Southwest Electric Co. X II Sweigart, Mitchell Solomon Corporation II Szczechowski, Janusz ABB AG X II Tabakovic, Dragan Meramec Instrument Transformer Co. X II Taylor, Marc Cogent Power Inc. X II Tedesco, Joseph ABB Inc. X II Theisen, Eric Metglas, Inc. X II Tillery, Timothy Howard Industries X X

AP Tozzi, Marco Camlin Power X AP Trivitt, Donnie Oklahoma Gas & Electric X II Turner, Federico Megaresistors Corp II Tyler, Lee Warco, Inc. II Uhlmann, Olivier Reinhausen Canada Inc. X II Vailoor, Vasanth Trantech X II Valmus, Jeff Cargill, Inc. II van der Zel, Gordon Electric Power Research Institute (EPRI) X

AP Van Horn, Jeremy IFD Corporation X X AP VanderWalt, Alwyn Public Service Co. of New Mexico X X II Varnell, Jason SPX Transformer Solutions, Inc. X X II Vartanian, John National Grid X

AP Vermette, Yves Electro Composites ULC II Vermeulen, Henricus SMIT Transformatoren B.V. X II Villagran, Deniss GE Grid Solutions X II Viswasam, Anselm Hyperion

AP vonGemmingen, Richard Dominion X X II Voss, Stephan Siemens AG X II Vuittenez, Emmanuel JST Transformateurs X II Wahid, Waqar Mitsubishi Electric Power Products X

AP Walker, David MGM Transformer Company X II Walters, Mark Mitsubishi Electric Power Products

AP Walters, Shelby Howard Industries X AP Wang, Evanne DuPont X X II Wang, Sheng JSHP Transformer X II Webb, Bruce Knoxville Utilities Board X X

AP Welch, Lee Georgia Power Co. X II Welton, Drew Beckwith Electric Co. X II Weyer, Daniel Nebraska Public Power District X

AP White, Leon Serveron II Whitehead, William Camlin Power X

AP Williams, Randy ABB Inc. II Williams, Trenton Advanced Power Technologies X II Wilson, Jonathan LG&E and KU Energy

AP Wimberly, Barrett GE Grid Solutions X AP Winstanley, Gerard NEMA X II Wright, Jeffrey Mitsubishi Electric Power Products X

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Type Name Company Mon Thu II Wu, Tzupin Shihlin Electric II Yang, Fei ABB Inc. II Yeh, Hsiao-Yu Fortune Electric Co., Ltd. X X II Yingling, Thomas Hubbell ICD, Inc. II Yun, Jiyoung Hyundai Electric X X

AP Yun, Joshua WEG Transformers USA Inc. X X II Zabel, David S&C Electric Company X II Zaman, Malia IEEE X II Zhang, Ji Mitsubishi Electric Power Products

AP Zibert, Kris Allgeier, Martin and Associates X X AP Ziger, Igor KONCAR - Instrument Transformers X X

Total Non-Committee Member Attendance: 278 91 Total Committee Member Attendance: 156 98 Total Attendance: 434 189

In addition to the above totals, there were 173 of the total attendees that attended both the Monday and Thursday Sessions and 450 that attended either the Monday or the Thursday Session.

Monday

CM Non-CM

Thursday

CM Non-CM

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Monday Opening Session

3.0 APPROVAL OF AGENDA AND PREVIOUS MINUTES – STEPHEN ANTOSZ

The Chair presented the Agenda and asked if there was any opposition to unanimous approval of the Agenda. Hearing none, the Agenda was approved.

The Chair asked if there was any opposition to unanimous approval of the minutes of the Spring 2017 meeting that have been posted on the website. Hearing none, the minutes of the Spring 2017 meeting were approved as written.

4.0 CHAIR’S REMARKS & REPORT – STEPHEN ANTOSZ

The Chair’s Report was presented at the Monday General Session.

CHAIR’S REMARKS

IEEE PES Technical Council

The Technical Council of the IEEE Power Energy Society (PES) is presently composed of the Chairpersons of the PES Technical and Coordinating Committees, plus the Chairpersons of Standing Committees reporting to it. The organizational structure of the PES is shown in the current version of the IEEE PES Organization Chart and Committee Directory (http://www.ieee-pes.org/pes-organization-chart-and-committee-directory). The PES Technical Committees report to the Technical Council on matters concerning membership, recognition, technical publications, scope and the coordination of the Power Energy Society generated standards. For standards relating to their technical scope, the Technical Committees work directly with the IEEE-SA Standards Board and the PES Standards Coordinating Committee. For further details on the Statement of Purpose and Scope of Activities for the PES Technical Council Please see; http://www.ieee-pes.org/statement-of-purpose-and-scope-of-activities-for-the-pes-technical-council.

Technical Council Officers & Members

The officers and members of the Technical Council are listed below for your reference. Each individual listed here is the chair of that respective committee.

TECHNICAL COUNCIL OFFICERS 2016-2017 Miriam Sanders, Chair (SEL University) Farnoosh Rahmatian, Vice Chair (Quanta Technology) Secretary, Vijay Vittal (Arizona State University) Past-Chair, Jeffrey Nelson (TVA)

STANDING COMMITTEES CHAIR Awards Jeff Nelson

Technical Sessions, TS Farnoosh Rahmatian

Organization & Procedures, O&P Vijay Vittal

Standards Coordination, SC Ted Burse

http://www.ieee-pes.org/statement-of-purpose-and-scope-of-activities-for-the-pes-technical-council

http://www.ieee-pes.org/statement-of-purpose-and-scope-of-activities-for-the-pes-technical-council

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COORDINATING COMMITTEES CHAIR Intelligent Grid & Emerging Technology, IGETCC Doug Houseman

Marine Systems, MSCC Dwight Alexander

Wind and Solar Power, WSPCC Debbie Lew

Power & Energy Education, PEEC Sukumar Brahma

TECHNICAL COMMITTEES CHAIR Electric Machinery, EM Kiruba Haran

Energy Development & Power Generation, EDPG Ward Jewell

Energy Storage & Stationary Battery, ESSB Chris Searles

Insulated Conductors, IC Frank Frentzas

Nuclear Power Engineering, NPE Thomas Koshy

Analytical Methods for Power Systems, AMPS Joydeep Mitra

Power System Communications & Cybersecurity, PSCC Mike Dood

Power System Dynamic Performance, PSDP Claudio Canizares

Power System Instrumentation & Measurements, PSIM Jim McBride

Power System Operation Planning & Economics, PSOPE Hong Chen

Power System Relaying & Control, PSR Praytap Mysore

Smart Buildings Loads & Customer Systems, SLCS Shawn Chandler

Substations, SUB Diane Watkins

Surge Protective Devices, SPD Ronald Hotchkiss

Switchgear, SWGR Paul Sullivan

Transformers. TRANS Stephen Antosz

Transmission and Distribution, T&D D.D. Sabin

PES Technical Council Activities

Joint Technical Committee Meeting, JTCM. https://www.pestechnical.org/. July 18, 2017. Chicago. Second of two annual gatherings where Technical Council meets to discuss activities of the Standing, Coordinating, and Technical Committees.

There were discussions about Tech Council’s new O&P document, along with a new template for Sponsor P&P’s. Our existing Transformers Committee Sponsor P&P was approved on Mar 27, 2014 and expires on Dec 31, 2019. So, we will form an Administrative Task Force to work on the revision.

Advance planning for the 2018 IEEE PES T&D Expo. • Technical papers for presentation at were discussed. Our Committee Vice-Chair will circulate the

papers for peer review. • Supersession topics are being considered. • Tutorial topics are requested

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TRANSFORMERS COMMITTEE ACTIVITIES

Liaison Representatives. Appointed by Committee Chair. • CIGRE - Raj Ahuja • IEC TC-14 - Phil Hopkinson • Standards Coordinating Committee, SCC No. 18 (NFPA/NEC) – David Brender • Standards Coordinating Committee, SCC No. 4 (Electrical Insulation) - Evanne Wang

RFID

This issue will be covered by our Meeting Planner, Greg Anderson. We are using RFID tags on the name badges for this Louisville meeting in a similar manner as past meetings. Bear with us as we implement this new technology, which is intended to make our meetings better.

Thursday morning Tutorials

We always continue to look for new and exciting topics. Tom Prevost is the leader of this activity for coordination efforts. If interested, see Tom or any of the officers. Any feedback by attendees is welcome.

Association Management System, 123 Signup

All WG’s should be using AMS to track their membership and meeting attendance. If unable to so, then please assign it to someone who can do it.

Website Password Usage

It is not for public dissemination. It is for use by our meeting attendees (CM, AP, II) and associated work of the Transformers Committee. One can think of it as a benefit of attendance and participation. Use it for yourself and within your immediate workplace, but not beyond that.

Call for Patents (Essential Patent Claims) http://standards.ieee.org/about/sasb/patcom/index.html

We are required to have a call for patents at every Working Group (WG) meeting. This is a reminder to all WG leaders to call for patents and record the results in the meeting minutes. Note it is not required to show the patent slides; it is only necessary to call for patents and record the response in the minutes. If there is a claim reported, the WG chair shall include in the minutes the name & affiliation of the individual asserting a patent claim. Here is what each WG Chair should ask at the beginning of each WG meeting. This applies only to WG’s after the PAR is approved by the IEEE-SA Standards Board.

“If anyone in this meeting is aware of any patent claims that are potentially essential to implementation of the document under consideration by this WG, that fact should be made known to the WG and recorded in the meeting minutes.”

That’s it. Move on. Don’t spend a lot of WG time on this issue. Don’t discuss it. Proceed with the WG meeting. Record in the minutes that the call for patents was made.

If a patent holder or patent applicant is identified, then the WG Chair (or designee) should ask the patent holder or patent applicant of a patent claim that might be or become an Essential Patent Claim to complete and submit a Letter of Assurance in accordance with Clause 6 of the IEEE-SA Standards Board Bylaws.

A Letter of Assurance (LoA) is a document submitted to IEEE-SA by a patent holder which documents the submitter’s position with regard to ownership, enforcement, or licensing of an Essential Patent Claim that may be incorporated into a specific IEEE document. As of Apr 2017, the following five (5) existing Accepted Letters of Assurance pertain to our committee:

http://standards.ieee.org/about/sasb/patcom/index.html

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1. C57.127 Guide for Detection and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors. LoA recorded September 6, 2005. Filed by ABB Technology, Ltd.

2. C57.139 Guide for Dissolved Gas Analysis in Transformer Load Tap Changers. LoA recorded January 16, 2013. Filed by Maschinenfabrik Reinhausen GMBH.

3. C57.163 Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances. LoA recorded May 5, 2014. Filed by Advanced Power Technologies, LLC.

4. C57.147 Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers, and C57.155 Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester-Immersed Transformers. LoA recorded April 5, 2017. Filed by Cooper Power Systems, LLC.

5. C57.147 Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers, and C57.155 Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester-Immersed Transformers. LoA recorded April 5, 2017. Filed by Cooper Power Systems, LLC.

Distribution of an LoA to the related Working Group is permitted.

100-year celebration in Spring 2018 in Pittsburgh

The Spring 2018 Meeting will be held March 25-29, 2018 in Pittsburgh, Pennsylvania at the Omni William Penn Hotel. This is a significant meeting, as the committee will celebrate 100 years of transformer standards development and the evolution of the Transformers Committee and all that it has accomplished. The roots of the committee go back to 1918 when a subcommittee of the Standards Committee ‘No 8. Transformers’ was formed to contribute to the Standardization Rules of the American Institute of Electrical Engineers (AIEE), the single common standard of the AIEE at that time. AIEE and IRE (Institute of Radio Engineers) merged to form IEEE in 1963. The Pittsburgh meeting will start with a special reception and banquet dinner on Sunday evening, with many IEEE PES dignitaries joining in the celebration. We will have a formal banquet on Sunday with special guests and speakers, a reunion of former members, significant honors and awards, and a sumptuous reception. More info to come.

• The first electric system with transformers was at Barrington, Vermont in 1886. • The electric system was growing exponentially. Much of the equipment being used was unmatched.

AIEE (which was just organized in 1884) recognizes in 1898 the need for standards as this industry moves forward.

• In 1899 AIEE produces the first standard of 14 pages covering all aspects of the industry, known as the ‘Standardization Rules’ where transformers are discussed as Stationary Induction Apparatus.

• The Standardization Rules were revised and updated and grew to hundreds of pages. • During this process a Transformers subcommittee was formed in 1918, and titled “No. 8

Transformers (Cooperating with N. E. L. A, and Power Club)”. It is the first formal AIEE/IEEE Transformer committee on record developing standards.

Ballot Resolution Groups (BRG)

There has been some “discussion” about this issue, so this is a reminder from the Chair that all BRG’s should be done with a smaller group, not the entire Working Group. This subject came up prior to the spring meeting this year and again afterwards. Our Standards Coordinator presented the following instructions at the standards luncheon outlining how BRG's should be handled. Only substantial issues brought up in the ballot need to be discussed with the WG. The WG must be presented with and approve the work of the BRG. The Transformers Committee P&P, Section 5.0, which addresses subgroups of the working group, states "Any resolution of a subgroup shall be subject to confirmation by the working group." A BRG is a subgroup of the working group, so section 5.0 applies. Unless explicitly empowered by the working group otherwise, the BRG comment resolutions shall be presented to the working group for confirmation and approval. Concurrence requires approval of two-thirds of the voting WG members. Existing Ballot Resolution Groups are NOT exempt.

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Transformers Committee Policies and Procedures (P&P) Update

Our Sponsor P&P was approved on Mar 27, 2014 and expires on Dec 31, 2019. A new template was developed by PES Tech Council and approved by AudCom. We will use this new template as the starting point for our new P&P. Peter Balma has volunteered to take on this task of revising this document.

The P&P is one of our three main governing documents that comes to us from PES Tech Council and IEEE-SA. It is sometimes called the Sponsor P&P, and it applies to Standards Development.

We also have an O&P, for Organization & Procedures, which supplements the P&P and applies to everything else we do. It covers: general operating procedures of the committee, subcommittees, and working groups; responsibilities of officers; membership issues; org chart; technical papers and presentations, etc.

Our third governing document is the Working Group P&P.

FERC and IEEE – A Question from PES President, Damir Novosel about Transformer Standardization to Improve Grid Resiliency

IEEE has a signed Memo of Understanding (MOU) with certain government entities such as; FERC, NERC, DOE (Federal Energy Regulatory Commission, North American Electric Reliability Corporation, Department of Energy). The purpose is to be aware of and get in front of governmental mandates that might affect our industry. Bill Chiu is a liaison between PES and FERC.

FERC has approached PES about ways to improve the electric grid resiliency, in the event of some severe weather event, terrorist attack, etc. Damir has asked the Transformers Committee if we have any Standards about “transformer standardization”, to make it easier and faster to replace power transformers and make the system more resilient. I told him that we do not. So, he asked if we might think about this and come up with ideas about developing some guiding documents about a standard transformer.

There are spare transformer programs by Edison International, EPRI, Grid Assurance, and maybe others, whereby transformers are purchased and stored in warehouses around the country. These would be used by Members of such programs, based on contracts and of course agreed to fees.

I had a brainstorming session with Bill Chiu about whether or not we the Transformers Committee could develop some kind of a ‘Guide for a Standard Transformer to Improve Grid Resiliency’. Obviously, there are a lot of obstacles to overcome such as ratings variations (voltage, impedance, etc.) from utility to utility based on the system the xfmr would be installed on, paralleling, overload practices, purchasing preferences, etc. A universal spare (standard) transformer would have to incorporate the most stringent requirements of all, and would be most expensive. But in a severe emergency situation a user might accept some relaxation of their requirements and be temporarily flexible, and could use a “standard transformer” to turn back on the lights. Our committee might work with the Substation Committee to develop something.

I agreed to at least bring up this topic and ask our meeting attendees to “think about this”. The question is: What can the Transformers Committee do (related to transformer standardization) to improve grid resiliency and help the US electric system withstand disruptions from weather disasters or other attacks? So, if anyone has any bright ideas, send it to me in an email.

Approval of Main Minutes and Subcommittee Minutes

The Main Committee meeting minutes are approved exclusive of all Subcommittee Minutes that are included as Appendices in the compilation document. So be aware that the approved version of Subcommittee Minutes may differ than what is in the compilation, if there are changes made after the initial submittal. This is because each subcommittee approves their own minutes AFTER the Main Committee minutes. A clarification note will be added at the front of the Appendices to explain the issue.

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New Webmaster

Susan McNelly has been our Webmaster for many years. She has had and continues to serve in other roles as well. Sue will soon become the Chair. This is a very demanding job; therefore, we are looking for a new Webmaster. However, this involves more than just a personnel replacement. Our website needs modernized to a new platform. This involved a lot of upfront work along with long term maintenance. So, we are looking for volunteers within our committee to step up and take on this role. If the expertise does not exist here, then we may need to outsource web development and maintenance. The first step is to solicit volunteers to contact Sue now! Depending on what kind of response we get in the next two weeks, we may have to outsource. If anyone here has webmaster skills and interest, please contact Sue or any one of the Officers.

Officer’s Travel for Committee Required Business

This is a notification to all attendees that the Officers have discussed and approved that all relevant and reasonable travel costs for extra meetings that Officers are required to attend shall be reimbursable by the Transformers Committee, for the following meetings:

Chair: 2 meetings per year 1. JTCM in January for Technical Council meeting 2. GM in July for O&P Committee 3. Chair retreat late Fall every 2 years is NOT included, since PES already pays the expenses.

Vice-Chair: 2 meetings per year; plus 1 every two years 1. JTCM in January for Technical Sessions meeting 2. GM in July for Technical Sessions meeting 3. T&D Expo in Spring even years for Paper/Poster Session, and any Panel Sessions

Standards Coordinator: 1 meeting per year 1. GM in July for Standards Coordinating Committee meeting

Typical business expenses will be covered, such as; air, hotel, meals, mileage, parking, taxi/car, baggage fees, tolls, other. The Treasurer should budget accordingly, for 5-6 meetings per year (and include meeting registration fees, as appropriate).

Reappointment of SC Chairs

According to the Transformers Committee O&P Manual, July 2016, clause 8.1 Appointment of Subcommittee Officers; “The Chair of a Subcommittee is appointed by the Chair of the Committee… The Subcommittee Chair's term of office is two years with reappointments as appropriate.”

To address this reappointment, in August 2017 I asked each SC Chair to reconfirm their intent to stay on as SC Chair for two more years, and they all have done so and were thus officially reappointed.

Officer Rotations

Every 2 years there is an officer progression – the Secretary gets promoted to Vice-Chair, the Vice-Chair gets promoted to Chair, the Chair gets promoted to Past-Chair, the Past-Chair gets promoted to “retirement”. This rotation will occur on Jan 1, 2018. I want to say thanks to Don Platts for his 8 years of service as a Committee Officer. (round of applause). We have appointed a new Secretary, Ed teNyenhuis. He is currently Performance Characteristics Subcommittee Chair. His Vice-Chair Craig Stiegemeier will take over as Chair of the subcommittee.

We also have a new Treasurer set to step in for a 2-year term on Jan 1, 2018. We all know Greg Anderson has been our Committee Treasurer for many years. Greg has done a great job as Treasurer (AND Meeting Planner). To ease Greg’s workload and to introduce a new person into the rotation, Paul Boman will replace

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Greg Anderson who has served in this role for many years now. I want to say thanks to Greg for his years of service as Treasurer. (round of applause).

Respectfully submitted,

Stephen Antosz Chair, IEEE/PES Transformers Committee

October 30, 2017

5.0 VICE CHAIR’S REPORT – SUSAN MCNELLY

The Vice Chair’s Report was presented at the Monday General Session.

IEEE PES CALENDAR OF UPCOMING EVENTS

The following are upcoming PES sponsored conferences and committee meetings. Please check the PES website at www.ieee-pes.org for further details, and additional events.

2018 IEEE PES TRANSMISSION AND DISTRIBUTION CONFERENCE AND EXPOSITION April 16 - 19, 2018, Denver, Colorado

2018 IEEE/PES General Meeting August 5 – 9, 2018, Portland, Oregan

CONFERENCE PAPER SUBMITTALS FOR 2018

2018 IEEE PES Transmission and Distribution Conference and Exposition – April 16-19, 2018, Denver, Colorado

Paper reviews and accept/reject decisions were not yet final at the writing of this report.

Papers Submitted: 13 IEEE Transaction Papers: 0 Transferred in: 1 Rejected: 3 Approved: 8 Under Review/Revision: 2

Best Paper: TBD Forum: TBD Poster Session: TBD

Paper Title Recommendation

18TD0042 Online Monitoring Data Cleaning of Transformer Considering Time Series Correlation

Pending review

18TD0048 Electric Substation Large Power Equipment Innovative and Cost Effective Methods for Repairing Oil and Gas Leaks

Rejected

18TD0085 Online Sequential Extreme Learning Machine for Partial Discharge Pattern Recognition of Transformer

Accept

18TD0102 Newly Developed, Optimized, and Cost-Effective Submersible Dry-Type Accept

http://www.ieee-pes.org/

http://www.ieeet-d.org/IEEE18/public/enter.aspx

http://pes-gm.org/2018/

http://pes-gm.org/2018/

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Paper Title Recommendation

Network Transformers

18TD0107 Residual Magnetic Flux of Three-Phase Three-Leg Transformer for Controlled Switching

Accept

18TD0133 Limiting Voltage Dips and Inrush Currents When Energizing Power Transformers

Accept

18TD0167 Submersible Transformer Inspection Robot (STIR) - A Change of Paradigm Accept

18TD0225 Bushing 101 Design, Application, Field Issues, Solutions and New Technology Rejected

18TD0257 Understanding the Sympathetic Inrush Phenomenon in the Power Network using Transformer Explorer

Pending review

18TD0283 Ester-based Dielectric Liquid for Grid Resilience and EHV Mobile Transformers

Accept

18TD0398 High temperature insulation systems: an option for resilient transformers Accept

18TD0401 Monitoring Gas Generation in Transformers Accept

18TD0448 765 KV BUSHING FLASHOVERS CASE STUDY Rejected

Panel Session submittals:

Three Panel Applications Submitted

Title Duration Moderator Expected

Recommendation

Keeping grids resilient – Transformer exchange within a few days and further options to maximize network stability (along the entire energy value chain)

4 Hrs E. Schweiger Accept

Improving grid stability with variable shunt reactors and phase shifters

2 Hrs J McIver Accept

Welcome to the future: sustainable urban energy 4 Hrs J McIver Reject

IEEE/PES General Meeting - August 5 - 9, 2018, Portland, Oregon

Paper submittals are still in progress at the writing of this report.

IEEE TRANSACTIONS ON POWER DELIVERY TO DATE IN 2017

Status as of October 21, 2017 - Submitted by Wilsun Xu:

Summary: No decision 9 Accept Without Changes 11 Review and Resubmit 3 Administrative Reject 0 Editorial Reject 4

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Reject - Do Not Resubmit 30 Total 57

Complete Listing of Transaction Papers Submitted to Date: Manuscript ID

Manuscript Title Decision

TPWRD-00031-2017

Design Optimization of Distribution Transformers with Nature-Inspired Metaheuristics - A Comparative Analysis

Editorial Reject

TPWRD-00036-2017.R1

Real-Time Evaluation of the Dynamic Loading Capability of Indoor Distribution Transformers

Accept Without Changes

TPWRD-00040-2017

Using a 3D Simulation to Study the Frequency Response of Transformers: a Case Study

Reject

TPWRD-00046-2017

The Saturation Processes in the Magnetic System of the Three-phase Power Transformer during Simultaneous AC and DC Flow in the Winding

Reject

TPWRD-00054-2017

Short Circuit Fault Analysis of Delta-ZigZag Transformer Editorial Reject

TPWRD-00113-2017

Transformer Tank Rupture Withstand Capacity – A Sensitivity Study on Tank Flexibility and Gas Generation

Reject

TPWRD-00123-2017

A Systems Theoretic Approach to Transformer Monitoring Reject

TPWRD-00172-2017.R1

Evaluating Failure Probability of Power Transformers based on Insulation Loss of Life

Reject

TPWRD-00246-2016.R3

Non-minimum phase effects in transformer low-frequency bandwidth responses Accept Without Changes

TPWRD-00320-2017.R1

Decision-Making in Emergency Operation for Power Transformers with Regard to Risks and Interruptible Load Contracts


TPWRD-00366-2017

Single-phase inductive elements’ magnetic cores faults study using FRA approach Reject

TPWRD-00432-2017

Transformer Winding Disk Deformation: A Precise Step towards Understanding of Variation in Frequency Response Spectrum

Reject

TPWRD-00452-2017.R2

Estimating the Equivalent Air-cored Inductance of Transformer Winding from Measured FRA


TPWRD-00478-2017

Development of a Hot-Spot Temperature Calculation Method for the Loss of Life Estimation of an ONAN Distribution Transformer

Reject

TPWRD-00488-2017

Practical Experience in Modeling GIC Effects on Three-Phase, Five-Leg Transformers

Reject

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Manuscript ID


TPWRD-00515-2017.R1

Experimental Verification of Dimensional Analysis Results on Flow Distribution and Pressure Drop for Disc Type Windings in OD Cooling Modes


TPWRD-00520-2017

A Comparison of Different Transformer Modeling Methods in Transient Recovery Voltage Studies in Case of Transformer Limited Faults

Reject

TPWRD-00521-2017

Frequency Response Analysis (FRA) of Transformers as a Tool for Fault Detection and Location: A Review

Reject

TPWRD-00523-2017

A Novel Digital Pressure Protection for Oil-Immersed Power Transformers Reject

TPWRD-00537-2017.R1

Noniterative Method for Combined Acoustic-Electrical Partial Discharge Source Localization

Revise and Resubmit

TPWRD-00541-2017

Buckling Strength Analysis of Transformer Inner Windings Editorial Reject

TPWRD-00543-2017.R1

Internal Faults Discrimination and Classification During Transformer Energization Using Extended Kalman Filter and Support Vector Machine

TPWRD-00550-2017.R1

On Savitzky-Golay Filtering for Online Condition Monitoring of Transformer On-Load Tap Changer


TPWRD-00554-2017.R2

Frequency Response Features of Axial Displacement Winding Faults in Autotransformers with Split Windings


TPWRD-00652-2017

Contribution of Inrush Current to the Mechanical Fatigue of Transformer Windings Reject

TPWRD-00667-2017.R1

Novel DC Bias Suppression Device Based on Adjustable Parallel Resistances

TPWRD-00671-2017

Multi-parametric Sensitivity Analysis of Improved Transformer Thermal Models Considering Nonlinear Effect of Oil Time Constant

Reject

TPWRD-00737-2017

A Markovian Model for Power Transformer Maintenance Reject

TPWRD-00772-2017

Study of the Parameters Affecting The Resonance Stresses In The High Voltage Power Transformers

Reject

TPWRD-00774-2017

A Probabilistic Approach for Forecasting the Allowable Current of Oil-Immersed Transformers

Revise and Resubmit

TPWRD-00783-2017

Three-dimensional Thermal Modeling of Transformers in Transformer Room for Spatial and Temporal Failure Analysis

Reject

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Manuscript ID


TPWRD-00801-2017

Graded Interleaving of EHV Transformers for Improved Transient Response against Surge Type Incident Voltages

Reject

TPWRD-00831-2017

Characterization of Power Auto-transformer FRA Signature: Experimental and FEM Study

Reject

TPWRD-00868-2017

Reduction of Distribution Transformer Failures Rates by Diagnoses and Isolating Mechanism

Reject

TPWRD-00882-2017.R1

Calculating a Health Index for Power Transformers Using a Subsystem-based GRNN Approach.

TPWRD-00927-2017

New Transformer Inrush Current Limiting Technology based on Three Pole Simultaneous Switch Control Method

TPWRD-00957-2017

Magnitudes and characteristics of tank vibrations of Power Transformers

TPWRD-00998-2017

Experimental Data Based Current Transformer Mathematical Simulation in Micro-Cap Program

Reject

TPWRD-01009-2017

Retrofitting the BCTRAN Transformer Model with Non-Linear Magnetizing Branches for the Accurate Study of Low-Frequency Saturating Transients

Revise and Resubmit

TPWRD-01043-2017

Localization of Partial Discharge in Transformers with Convolutional Iterative Filtering

Editorial Reject

TPWRD-01058-2017

Saturable Reactor Hysteresis Model Based on Jiles–Atherton Formulation for EMT Studies

Reject

TPWRD-01126-2017

Topology Correct Reversible Model of Three-Phase, Five-Limb Transformer

TPWRD-01137-2017

Advanced On-line Condition Monitoring and Inter-turn Short Circuit Detection of power transformer of Power Transformers

TPWRD-01154-2017

Evaluation of Full-Wave Response of Transformer Windings

TPWRD-01175-2017

Experimentally Validated Method to Measure the λ-i Characteristics of Asymmetric 3phase transformer

TPWRD-01253-2016

Split-Winding Transformer Design Using New Hybrid Optimization Algorithm Based on PSO and I-BB-BC

Reject

TPWRD-01274-2016

Classification and Discrimination among Winding Mechanical Defects, Internal and External Electrical Faults and Inrush Current

Reject

TPWRD-01275-2016.R2

An Online Data-Driven Technique for the Detection of Transformer Winding Deformations


Page 30 of 55

Manuscript ID


TPWRD-01313-2016.R2

A New Leakage Flux Based Technique for Turn to Turn Fault Protection and Faulty Region Identification in Transformers


TPWRD-01322-2016.R1

A New Analytical Model for Transformer Saturation and Inrush Current Reject

TPWRD-01323-2016

Mixed core design for power transformers to reduce core losses Reject

TPWRD-01391-2016.R2

Interpretation of Hot Spot Factor for Transformers in OD Cooling Modes Accept Without Changes

TPWRD-01397-2016

Analysis of Ability to Withstand DC Bias in Power Transformers Using a Novel Analytical Criteria

Reject

TPWRD-01403-2016.R1

An Integrated Filtering Technique for the Detection of Current Transformer Saturation

Reject

TPWRD-01407-2016

Current Status and Future Trends in Condition Monitoring of On-Load Tap-Changers

Reject

TPWRD-01484-2016.R1

Investigation of Thermal Behavior of an Oil Directed Cooled Transformer Winding Accept Without Changes

TPWRD-01507-2016

A Model for Calculating Transformer Hot-Spot Temperature Considering Multiple Overloads

Reject

Respectfully,

Susan McNelly Vice Chair

October 29, 2017

6.0 SECRETARY’S REPORT – BRUCE FORSYTH

The Secretary’s Report was presented at the Monday General Session.

MEMBERSHIP REVIEW

The Committee welcomes and encourages active participants to become Members of the Committee. Requirements and application forms can be found in the Organization and Procedures (O&P) Manual, accessible on the Committee website. A link to the Membership Application form can be found on the TransformersCommittee.org homepage in the Committee Information Box. Subcommittee Chairs are encouraged to recommend new members and to communicate the process of attaining membership through active participation and contribution at the WG and SC level. New member applications may be submitted to the Committee Secretary’s attention at any time. Applications will be collected for review and approval in batches at each Administrative Subcommittee meeting.

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New Committee Member Approvals

At the Spring 2017 Administrative Subcommittee meeting, seven new committee member applications were reviewed. Six of the applications were approved. One application by Mike Thibault was not approved because he had not met the 2 years of participation requirement. The new members are listed in the following table.

Name Affiliation Sponsor #1 Sponsor #2 Sponsor #3 Membership Category

Ryan Musgrove Oklahoma Gas and Electric

Joe Watson Power Trans. SC

3 yr.

Gary Hoffman WG C57.12.10

1.5 yr.

Joe Watson WG C57.148

3 yr. User

Ali Naderian METSCO Tauhid Ansari

C57.12.00 4 yr.

Jane Ann Verner C57.163

1 yr.

Ajith Varghese Dielectric Test SC

4 yr. User

Mathieu Sauzay JST Transformers Ed teNyenhuis Perf. Char. SC

8 yr.

Hemchandra Shertukde

WG C57.159 8 yr.

Richard Marek WG C57.154

4 yr. Producer

Hamid Sharifnia STANTEC Joe Watson

Power Trans. SC 3 yr.

Alwyn Vanderwalt PC57.93

>2 yr.

Ali Naderian WG C57.161

>2 yr. User

Mike Spurlock AEP Pierre Riffon

WG Impulse Tests 2 yr.

Bill Griesacker TF RLFT

2+ yr.


5+ yr. User

Eric Weatherbee PCORE Peter Zhao

Bushings SC 8 yr.

Scott Digby WG PC57.19.04

7.5 yr.

Shibao Zhang C57.19.01

7 yr. Producer

New Member Applications

Twelve new applications for Committee Membership have been received for consideration since the Spring 2017 meeting. The following table lists the names of the applicants and a summary of their supporting eligibility information.


Solomon Chiang IEEE – Yes PES – Yes SA – Yes

The Gund Company

Sheldon Kennedy Insulation Life SC

2 yr.

Tom Prevost WG PC57.162

3 yr.

Roger Wicks WG P1276 & PC57.12.60

2.5 yr,

Producer

Luiz Chiem IEEE – Yes PES – Yes SA – Yes

ABB Inc. David Wallach

Insulating Fluids SC 10 Yr.

Claude Beauchemin WG PC57.104

5 yr.


4 yr. Producer

Scott Digby IEEE – Yes PES – Yes SA – Yes

Duke Energy Peter Zhao

Bushings SC 5 yr.

Gary Hoffman C57.12.10 Revision

2+ yr.

Shibao Zhang C57.19.01 Revision

5 yr. User

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Marcos Ferreira IEEE – Yes PES – Yes SA – Yes

Advisian – WorleyParsons

Group

Mike Lau WG PC57.93

5 yr.

Jerry Murphy Standards SC

5 yr.

Craig Colopy WG 602142

3 yr. User

George Frimpong IEEE – Yes PES – Yes SA – Yes

ABB Inc Sheldon Kennedy Insulation Life SC

10 yr.

Ali Naderian WG PC57.161

5 yr.


4 yr. Producer

John Herron IEEE – Yes PES – Yes SA – Yes

Raytech USA Hakim Sahin

WG/TF C57.12.90 5 yr.

D. Wallace WG PC57.13.8

3 yr.

E. teNyenhuis Perf. Char. SC

5 yr.

General Interest

John IEEE – Yes PES – Yes SA – Yes

Virginia Transformer

Corp.

Phil Hopkinson WG P60076-16

4 yr.

Rogerio Verdolin WG PC57.105

2.5 yr.

Ajith Varghese Dielectric Test SC

2+ yr. Producer

Kumar Mani IEEE – Yes PES – Yes SA – Yes

Duke Energy Gary Hoffman

WG PC57.12.10 2 yr.

Ali Naderian WG PC57.161

2 yr.

Ajith Varghese Diectric Test SC

1.5 yr User

Shankar Nambi IEEE – Yes PES – Yes SA – Yes

Bechtel Casey Ballard

WG PC57.12.01 2 yr.

Enrique Betancourt WG PC57.158

2 yr.


5 yr. User

Robert “Bud” Stinson

IEEE – Yes PES – Yes SA – Yes

GE Stephen Shull

Dist. Trans. SC 2 yr.

Craig Colopy WG PC57.15

3 yr.

Brian Klaponski WG PC57.12.40

2.5 yr. Producer

Mike Thibault IEEE – Yes PES – Yes SA – Yes

Pacific Gas and Electric

Al Traut WG C57.12.20

2 yr.

Ron Stahara WG C57.12.34

2 yr.

Dan Mulkey WG C57.12.28/etc.

Fall ’15 &16’/Spring 16’

User

Joshua Verdell IEEE – Yes PES – Yes SA – Yes

ERMCO Stephen Shull

Dist. Trans. SC 3 yr.

Alan Traut WG PC57.12.20

5 yr.

Ali Ghafourian WG PC57.12.38

5 yr. Producer

These applications will be reviewed at the Fall 2017 Administrative Subcommittee meeting.

Association Management System (AMS) Database

The Transformers Committee AMS database of people currently has three general categories of participation in our activities. These are: Interested Individual, Active Participant, and Committee Member. In addition, the Committee Secretary maintains a list of Past Committee Members. Anyone can join the AMS 123 system as the system is designed for self-registration. A new participant will automatically be assigned the role of Interested Individual when they first sign up. It is the responsibility of each individual to keep his/her profile updated (except for the participant status). Based on the level of participation, the committee administrative staff will upgrade the participation status to “Active Participant” when appropriate. The Committee Member status however, can only be attained through a formal application with the sponsorship of a minimum of three WG or SC chairmanships, at least one of which must be a SC Chair. Details of the application requirements and approval process by the Administrative Subcommittee are outlined in our O&P manual.

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The following table contains a count of the participants grouped by the four general categories (CM totals do not include those requesting membership at this meeting).

Membership Status F14 S15 F15 S16 F16 S17 F17*

Interested Individual 1386 1362 1462 1471 1507 1554 1550 Interested Individual - IEEE Life Member 10 9 11 11 11 11 11

Total Interested Individuals 1396 1371 1473 1482 1520 1565 1561

Active Participant 201 205 240 242 258 275 302 Active Participant - IEEE Life Member 6 6 7 5 5 5 5

Total Active Participants 207 211 247 247 263 280 307

Committee Member 170 173 161 172 175 180 169 Committee Member – Emeritus 10 10 10 9 9 9 9

Committee Member - IEEE Life Member 20 22 23 25 27 29 28 Total Committee Members 200 205 194 206 211 218 206

Past Committee Member 18 19 28 32 31 30 42 Past Committee Member - IEEE Life

Member 6 7 6 5 5 5 7

Total Past Committee Members 24 26 34 37 36 35 49

TOTAL IN AMS DATABASE 1827 1813 1948 1972 2028 2098 2123 *F17 data is as of October 21, 2017

COMMITTEE, SUBCOMMITTEES, AND WORKING GROUP ROSTERS

In order to provide indemnification to working group and subcommittee members it is crucial that membership lists be maintained. The AM system has these functions built-in to ease these administration tasks. It is important that each subcommittee and working group chair keep the rosters updated so that this information can be provided to the IEEE SA.

Past Committee Member2%

Committee Member10%

Active Participants14%

Interested Individual74%

MEMBERSHIP SUMMARY

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A similar main committee roster has also been developed to track attendance for the Main Committee General Session meeting on Monday & Thursday. The data will be used to update participant’s membership profile.

IEEE/PES AND IEEE/SA MEMBERSHIP REQUIREMENTS

As a reminder, all members of the Transformers Committee must also be members in good standing of the Power & Energy Society (IEEE/PES) and the Standards Association (IEEE/SA).

WG Chairs must be members in good standing of the sponsoring subcommittee SC as well as the Power & Energy Society (IEEE/PES) and the Standards Association (IEEE/SA).

COMMITTEE MEMBERSHIP MAINTENANCE

An attendance audit was performed in mid-October. As a result of the audit, the following 17 members who have missed 4 or more Committee meetings in a row were changed from Committee Member to Past Committee Member:

Robert Asano David Buckmaster Robert Degeneff Don Duckett Richard Ladroga Michael R. Miller

Van Nhi Nguyen Ray Nicholas Klaus Papp Tony Pink John Progar Dinesh Sankarakurup

Jin Sim Subhash Tuli David Woodcock Shuzen Xu Shidao Zhang

In addition, Keith Ellis and Justin Pezzin have been moved to the Past Committee Member list. Keith has notified the Committee that he has retired and will no longer participate. Justin has changed industries and will no longer be able to participate.

Note that Past Committee Members can be reinstated to Committee Members if their status changes and they are able to regularly participate within two years of being changed to Past Committee Member.

ESSENTIAL PATENT CLAIMS

All registrants were asked to agree with the following statement:

“I have read the Patent Claim notice on the following webpage, and I understand that if I am aware of any Essential Patent Claim related to issues being discussed or considered for inclusion in standards being developed by one or more Working Groups of the Transformers Committee, it is my responsibility to inform the Chair of the Working Group affected by such claim.”

Working Group Chairs are asked to make a Call for Essential Patent at the beginning of each meeting and to record the results in the meeting minutes.

AFFILIATION

According to the IEEE Standards Board Bylaws, there is a requirement that participants of an IEEE meeting disclose their employer and affiliation. Consultants must state if they are sponsored or not. It is not sufficient to simply announce "My name is John Smith, and I'm a consultant." If a consultant is sponsored by a client, it must be disclosed. If the consultant does not have a sponsor, the proper introduction is something such as “My name is John Smith, I am a consultant, and I represent myself at this meeting.”

MEETING MINUTES

The minutes of the Spring 2017 meeting have been posted to the committee website.

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Subcommittee Chairs are asked to submit their respective subcommittee meeting minutes for the New Orleans meeting to the Committee Secretary no later December 14, 2017, which is 6 weeks after the completion of the meeting. It is strongly recommended that meeting minutes be prepared soon after the meeting while the activities are still fresh in members’ minds. Doing so will help to ensure the activities and decisions made during the meeting are accurately reflected in the minutes.

Subcommittee meeting minutes should be submitted via e-mail to the Committee Secretary, Bruce Forsyth [[email protected]], who will forward them on to the webmaster for posting on the Committee website. The submittal file should be saved as a Word document formatted similar to this document. Attendance, indication of quorum, names of members making any motion, seconding any motion, and the result of any votes (affirmative and negative count) for each SC, WG, and TF meeting shall be included in all minutes.


Bruce Forsyth Secretary IEEE/PES Transformers Committee October 24, 2017

7.0 TREASURER’S REPORT – GREGORY ANDERSON

The Treasurer’s Report was presented at the Monday General Session.

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8.0 RECOGNITION AND AWARDS REPORT – DON PLATTS

The Recognition and Awards Report was presented at the Monday General Session.

SPECIAL TRIBUTES

During the months since our previous meeting in March 2017 in New Orleans, the Transformers Committee and the industry lost another of our long-time contributors. At our Awards luncheon on Tuesday, the meeting attendees paid special tribute to another of our friends and collogues who recently passed away.

Joseph J Kelly (1936 – 2017)

Joseph James Kelly Jr., age 81, passed away August 26, 2017. He was Husband, Dad, Papa, provider, patriot, and man of faith.

Joe served as a transformer committee member since before 1980 and WG Chair for C57.106 from 1998 through 2002. He was a legendary figure who aided in the personal development of many of those attending the Transformer Committee meetings. Joe was not afraid to voice an opinion and quick to point out that he was a Chemist just before making a good-natured remark about Engineers. Joe inspired many to get involved in standards work.

COMMITTEE MEMBERSHIP CERTIFICATES

The Transformers Committee welcomes 12 new full committee members. Each of the following new members was presented with a membership certificate:

New Member Affiliation

Solomon Chiang The Gund Co

Luiz Chiem ABB

Scott Digby Duke Energy

Marcos Ferreira Advisian-Worley Parsons

George Frimpong ABB

John Herron Raytech USA

John John Virginia Transformer

Kumar Mani Duke Energy

Shankar Nambi Bechtel

Robert "Bud" Stinson General Electric

Mike Thibault Pacific Gas & Electric

Josh Verdell Ermco

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GENERAL SERVICE AWARDS

Certificates of Appreciation are usually presented to the meeting host, past Subcommittee Chairs, and other special committee positions for their contributions to the Transformers committee. Our meeting in Louisville has been a successful, host less meeting. So, in lieu of the award for a meeting host, we recognized the Meeting Planning Team that supports all of our meetings. Greg Anderson, Chair Meeting Planning Subcommittee; Tammy Behrens, Vice-Chair; Jennifer Quandel; and Seaira Ford.

OUTSTANDING CONTRIBUTOR AWARDS & CERTIFICATE OF APPRECIATION

In any successful organization, there are always a handful of hard working individuals, laboring behind the scene that put in the sweat equity year after year to provide great contributions to the success of the group. Often these contributors are not necessarily those who held the official titles. Similarly, in the Transformers Committee, we also have a long list of these outstanding contributors. At our recent meetings, the Awards subcommittee has started the process of recognizing the individuals who provided long tenured contributions to our organization. As we look across the many contributors we have in the organization, we realize that there are many deserving candidates. We hope to continue to recognize these awardees at each of our future meeting.

The criteria for the evaluation of the nominees are primarily based on the long tenure of significant contributions in either technical subject matter expertise and/or broader organizational impacts in our ability to reinvent our thinking and continue our industry leadership and relevancy.

At the Awards Luncheon on Tuesday, the Transformers Committee presented a special certificate of appreciation to one of our members for his many years of service, and multiple contributions to the Transformers Committee and to the industry.

Our recipient has been an active leader of Working Group activities with the Transformers Committee for the past 6 to 8 years, and has been a committee member since 1996. During his career, he has also been heavily involved with IEEE PES and IEEE SA, including serving on the SA Board of Governors.

He has served our committee as our Standards Coordinator, and then joined the ranks of the officers of the committee, serving as Chair in 2008-2009. Now Tom Prevost is the VP Innovation and R&D – Americas for Weidmann Electrical Technology

He has been a perpetual technical contributor over decades on participation, and has brought to us a level of expertise in the area of dielectric design and both dielectric and thermal evaluation of performance. As well as transformer testing. As a result, the committee has benefited greatly from his experience, wisdom, and practical expertise, as well as his leadership.

IEEE SA STANDARDS BOARD AWARDS

In addition to the Committee Awards above, the IEEE SA SB presents its own Award to the WG Chair upon publication of a new or revised document, and offers the WG Chair the opportunity to nominate significant contributors to the project for an IEEE SA SB Certificate of Appreciation.

IEEE SA Award Recipients:

We have had a number of working groups that have completed their projects, their standards documents have been published, but IEEE SA has been slow to recognize them by awarding the SA plaques and Certificates of Appreciation. At our fall meeting in Louisville, recognition was again noted for these Working Groups, at our Tuesday luncheon, with the understanding that they may still request that the official plaque award ceremony be at a future Transformers Committee meeting.

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Number Title WG Chair

C57.106-2015 Guide for Acceptance and Maintenance of Insulating Mineral Oil in Electrical Equipment Bob Rasor

60076-57-1202 2016

International Standard Requirements for Liquid-Immersed Phase-Shifting Transformers Raj Ahuja

One of these Working Groups that has been waiting for a long time was finally recognized noting that their SA Award plaques are being mailed to the recipients.

C57.125-2015 Guide for Failure Investigation, Documentation, Analysis, and Reporting for Power Transformers and Shunt Reactors. Wally Binder- Working Group Chair

In addition, there are a few other projects that were completed in the past year, and during the luncheon awards meeting we recognized these Working Groups for their accomplishments.

The Working Groups that chose to have their awards shipped directly to their contributors are:


C57.138-2016 IEEE Recommended Practice for Routine Impulse Tests for Distribution Transformers Art Molden

C57.12.40-2017

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types

(Liquid Immersed)

Brian Klaponski

C57.12.36-2017 IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers Jerry Murphy

C57.140-2017 IEEE Guide for Evaluation and Reconditioning of Liquid Immersed Power Transformers Paul Boman

Since our last meeting, we had 4 additional Transformer Standards documents that were approved by RevCom, and subsequently the SA Board.

Due to the process of waiting for document publication, identifying the recipients, and producing the awards, we will not have awards ready for these projects at this meeting. But we still want to provide recognition and notice of these accomplishments.


C57.120 IEEE Guide for Loss Evaluation of Distribution and Power Transformers and Reactors

Roger Verdolin

C57.12.58 -2017 IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil.

Roger Wicks

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C57.12.90-2015/ Cor 1

IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers - Corrigendum 1: Editorial and Technical Corrections

Steve Antosz

C57.163 2016/ Cor 1

Corrigendum 1 Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances

Jane Verner / Gary Hoffman

The remainder of the projects that were approved by the Standards Board earlier this year, will be recognized at our next meeting. The Working Groups that will be formally recognized, with their awards, at a future meeting are:


C57.12.58 -2017 IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil.

Roger Wicks

P60076-57-129 Standard for General Requirements and Test Code for Oil-Immersed HVDC Converter Transformers

Ulf Radbrandt

OTHER IEEE PES AWARDS (AVAILABLE UPON APPLICATION TO PES)

The IEEE PES recognizes important technical, educational and service contributions through the conferral of numerous awards. The listing below highlights the various other awards that are available through the IEEE PES organization.

IEEE PES Award for Excellence in Power Distribution Engineering Nominations due by October 1

IEEE PES IAS A.P. Seethapathy Rural Electrification Excellence Award Nominations due by February 1st

IEEE PES Charles Concordia Power System Engineering Award Nominations due by February 29th

IEEE PES Cyril Veinott Electromechanical Energy Conversion Award Nominations due by February 1st

IEEE PES Douglas M. Staszesky Distribution Automation Award Nominations due by January 31st

IEEE PES Lifetime Achievement Award Nominations due by February 1st

IEEE PES Leadership in Power Award Nominations due by February 1st

IEEE PES Meritorious Service Award Nominations due January 31st

IEEE PES Nari Hingorani Custom Power Award Nominations due by January 31st

http://grouper.ieee.org/groups/td/dist/distaward.html

http://grouper.ieee.org/groups/td/dist/distaward.html

http://www.ieee-pes.org/iaspes-ap-seethapathy-rural-electrification-excellence-award

http://www.ieee-pes.org/charles-concordia-power-system-engineering-award

http://www.ieee-pes.org/cyril-veinott-electromechanical-energy-conversion-award

http://www.ieee-pes.org/douglas-m-staszesky-distribution-automation-award

http://www.ieee-pes.org/lifetime-achievement-award

http://www.ieee-pes.org/leadership-in-power-award

http://www.ieee-pes.org/meritorious-service-award

http://www.ieee-pes.org/meritorious-service-award

http://www.ieee-pes.org/nari-hingorani-facts-award

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IEEE PES Nari Hingorani FACTS Award Nominations due by January 31st

IEEE PES Outstanding Chapter Award

IEEE PES Outstanding Power Engineering Educator Award Nominations due by January 30th

IEEE PES Outstanding Young Engineer Award Nominations due by February 1st

IEEE PES Prabha S. Kundur Power System Dynamics and Control Award Nominations due by January 31st -

IEEE Power & Energy Society Ramakumar Family Renewable Energy Excellence Award Nominations due by January 31st

IEEE PES Robert P. Noberini Distinguished Contributions to Engineering Professionalism Award Nominations due by February 1st

IEEE PES G. Ray Ekenstam Memorial Scholarship Nominations due by June 30th

IEEE PES Scholarship Plus Initiative Applications due by June 30th

IEEE PES Roy Billinton Power System Reliability Award Nominations due by February 1st

IEEE PES Uno Lamm High Voltage Direct Current Award Nominations due by November 30th

IEEE PES Wanda Reder Pioneer in Power Award Nominations due by January 15th

IEEE PES CSEE Yu-Hsiu Ku Electrical Engineering Award Nominations due by January 31st

IEEE PES Working Group Recognition Awards The PES Working Group Recognition Awards recognize “the most outstanding and timely publications” by a PES Working Group (or Committee or Subcommittee) from among the nominations. The PES Recognition Award is divided into two categories: 1) for technical reports; 2) standards and guides. Each Technical Council Committee may nominate one report from each category, published by IEEE, during the previous three year period.” This award consists of a plaque which will be presented to the Working Group Chair at the PES Summer Meeting Awards Luncheon. A framed certificate will be presented to each Working Group member at a designated meeting of the parent Technical Committee.


Donald W Platts Chair, Recognitions and Awards Subcommittee

http://www.ieee-pes.org/nari-hingorani-facts-award

http://www.ieee-pes.org/pes-communities/awards/chapter-awards

http://www.ieee-pes.org/images/files/pdf/awards/2010/extracted_pages/13-Outstanding_Large_Chapter_Award-2009.pdf

http://www.ieee-pes.org/images/files/pdf/awards/2010/extracted_pages/13-Outstanding_Large_Chapter_Award-2009.pdf

http://www.ieee-pes.org/outstanding-power-engineering-educator-award

http://www.ieee-pes.org/outstanding-young-engineer-award

http://www.ieee-pes.org/ieee-pes-prabha-s-kundur-power-system-dynamics-and-control-award

http://www.ieee-pes.org/ieee-pes-ramakumar-family-renewable-energy-excellence-award

http://www.ieee-pes.org/robert-p-noberini-distinguished-contributions-to-engineering-professionalism-award

http://www.ieee-pes.org/robert-p-noberini-distinguished-contributions-to-engineering-professionalism-award

http://www.ieee-pes.org/g-ray-ekenstam-memorial-scholarship

http://www.ee-scholarship.org/

http://www.ieee-pes.org/roy-billinton-power-system-reliability-award

http://www.ieee-pes.org/uno-lamm-high-voltage-direct-current-award

http://www.ieee-pes.org/ieee-pes-wanda-reder-pioneer-in-power-award

http://www.ieee-pes.org/yu-hsiu-ku-electrical-engineering-award

http://www.ieee-pes.org/working-group-recognition-awards

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9.0 ADMINISTRATIVE SUBCOMMITTEE MEETING REPORT

INTRODUCTION OF MEMBERS AND GUESTS

The Chair called the meeting to order and asked attendees to introduce themselves and their affiliation. Consultants were asked to identify the company they were representing if they were not representing their own consulting interest. Introductions were made by members and guests.

Members and Guests Present: Chair .................................................................................................................. Stephen Antosz Vice Chair.......................................................................................................... Susan McNelly Secretary ............................................................................................................ Bruce Forsyth Treasurer/ Meetings Planning SC ..................................................................... Gregory Anderson Standards Coordinator ....................................................................................... (Jim Graham was absent) Awards/Past Chair ............................................................................................. Donald Platts Bushings ........................................................................................................... Peter Zhao Dielectric Tests ................................................................................................. Ajith Varghese Distribution Transformers ................................................................................ Stephen Shull Dry Type Transformers .................................................................................... Chuck Johnson HVDC Converter Transformers & Reactors .................................................... Michael Sharp Instrument Transformers .................................................................................. Ross McTaggart Insulating Fluids ............................................................................................... David Wallach Insulation Life .................................................................................................. Sheldon Kennedy Performance Characteristics ............................................................................. Ed teNyenhuis Power Transformers ......................................................................................... Bill Griesacker Standards ........................................................................................................... Jerry Murphy Underground Transformers & Network Protectors .......................................... Dan Mulkey Guests: Malia Zaman (IEEE), Peter Balma (by phone, partially)

APPROVAL OF PREVIOUS MEETING MINUTES

The Chair asked for comments of the minutes from the Spring 2017 Administrative Subcommittee meeting. There were no comments and no objections to unanimous approval, therefore the minutes were approved.

ADDITIONS TO AND/OR APPROVAL OF THE AGENDA

The Chair noted three items would be added under new business to the preliminary agenda that was previously distributed. There were no additional changes requested and no objections to unanimous approval of the revised agenda, therefore the following agenda was approved.

Approved Agenda:

1. Introduction of Members and Guests (:05) ................................................................................... All 2. Approval of Spring 2017 Minutes (:03) .................................................................... Stephen Antosz 3. Additions to and/or Approval of the Agenda (:02).................................................... Stephen Antosz 4. Chair’s Report (:10) ................................................................................................... Stephen Antosz 5. Vice Chair’s Report (:05) .............................................................................................. Sue McNelly 6. Secretary’s Report & New Committee Membership Approval (:15) .......................... Bruce Forsyth 7. Treasurer’s Report (:05) ............................................................................................ Greg Anderson

Time Check (2:45 pm)

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8. Recognition & Awards Report (:05) ................................................................................. Don Platts 9. Standards Report (:20) .................................................................................................... Jim Graham 10. IEEE Staff Update (:10) ............................................................................................... Malia Zaman 11. Meeting Planning (:10) .............................................................................................. Greg Anderson

11.1. Louisville Meeting Update 11.2. Future Meetings

Time Check (3:30 pm) & Break (15 min)

12. Old Business 12.1. 100 Year Anniversary of Transformers Committee (:20) ..................... S. Antosz/P. Balma 12.2. Emeritus Membership (:15) ............................................................................ Bruce Forsyth 12.3. Update on China Projects (:10) ................................................................... Stephen Antosz

(CSEE Lead Exit, SGCC Filed PD Testing) 13. New Business (:05)

13.1. Openness of Meetings ................................................................................. Stephen Antosz 13.2. Webmaster ................................................................................................... Stephen Antosz 13.3. Approval of SC Meeting Minutes ............................................................... Stephen Antosz

Time Check (4:35 pm)

14. Subcommittee Reports – Roundtable (not intended to indicate order of reporting) 14.1. Bushings (:03) ..................................................................................................... Peter Zhao 14.2. Dielectric Test (:03)...................................................................................... Ajith Varghese 14.3. Distribution Transformers (:03) ......................................................................... Steve Shull 14.4. Dry Type Transformers (:03) ....................................................................... Chuck Johnson 14.5. HVDC (:03) ........................................................................................................ Mike Sharp 14.6. Instrument Transformers (:03) ................................................................... Ross McTaggart 14.7. Insulating Fluids (:03) ................................................................................... David Wallach 14.8. Insulation Life (:03).................................................................................. Sheldon Kennedy 14.9. Performance Characteristics (:03) ................................................................. Ed teNyenhuis 14.10. Power Transformers (:03) ............................................................................ Bill Griesacker 14.11. Standards (:03) ................................................................................................ Jerry Murphy 14.12. Subsurface Transformers & Network Protectors (:03) ...................................... Dan Mulkey

15. Adjourn

CHAIR’S REPORT – STEPHEN ANTOSZ

Refer to Section 4.0 of the Main Minutes for a complete “Chair’s Report.”

Highlights:

• We are always looking for tutorial topics. Refer suggestions to Tom Prevost. • A verbal call for patents is required at the beginning of all WG meetings. • 100-year celebration plans are well underway. • Ballot Resolution Groups (BRG): Reminder to all participants that the work of the BRG must go

back to the Working Group. • Sponsor P&P will expire in 2018. Peter Balma has started the revision process. • FERC has asked if a specification exists for a standard transformer to assist in grid resiliency, and if

not is there something PES can do about this regard. Steve asked everyone to think about the issue. • Steve raised the issue of SC meeting minutes approval. See New Business for details of the

discussion. • Steve announced Ed teNyenhuis will be the Secretary and Paul Boman will be Treasurer starting

January 1, 2018. In addition, Steve thanked Greg Anderson for serving as Treasurer for many years.

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VICE CHAIR’S REPORT – SUE MCNELLY

Refer to Section 5.0 of the Main Minutes for a complete “Vice Chair’s Report.”

Highlights:

• Upcoming Meetings: o T&D show in Denver, CO on April 16-19, 2018 o General Meeting in Portland, OR on August 5-9, 2018

• T& D Paper Summary: o 13 papers submitted o 3 rejected o 8 approved o 2 under review &/or revision o Do not have a best paper for poster session yet

• Panel Sessions: o 3 proposals submitted, but we can only have one 4-hour and one 2-hour session, so one of

the 4-hour sessions will likely be rejected. • GM Papers:

o Papers have started coming in but none have been reviewed yet o Notices for reviews will be sent out soon

• Transaction Papers: o 57 submittals so far o 9 have no decision as yet o 3 are out for editorial revisions o 11 have been accepted o No administrative rejections o 4 editorial rejections o 30 straight rejections

SECRETARY’S REPORT – BRUCE FORSYTH

Refer to Section 6.0 of the Main Minutes for a complete “Secretary’s Report.”

Highlights:

• There were twelve applications for Committee Membership since the last meeting. A motion was made by Bruce Forsyth (seconded by Steve Shull) to approve all 12 applications. The motion was approved unanimously.

• SC Chairs are asked to submit their minutes not later than December 14, 2017.

TREASURER’S REPORT – GREGORY ANDERSON

Refer to Section 7.0 of the Main Minutes for a complete “Treasurer’s Report.”

Highlights:

• Greg reviewed the finances briefly and noted the current balance is higher than in the past in anticipation of higher than normal costs for the spring 2018 100-year anniversary meeting.

• The Committee finds are in good shape.

RECOGNITION & AWARDS REPORT – DON PLATTS

Refer to Section 8.0 of the Main Minutes for a complete “Recognition & Award’s Report.”

Highlights:

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• There is a limited program for Tuesday’s luncheon. • 2 awards for outstanding contributions will be handed out this week. Program will include:

o Memorial for Joe Kelly o Recognition for new members o WG recognition o Two candidates for outstanding contributor

Steve Antosz recognized Don Platts for his 18 years of service as a subcommittee chair or officer to the committee.

STANDARDS REPORT – JIM GRAHAM

Refer to Section 10.0 of the Main Minutes for a complete “Standards Report.”

Highlights:

• Jim Graham was not able to attend the meeting. Steve Antosz briefly reviewed the standards report.

IEEE STAFF UPDATE – MALIA ZAMAN

Refer to Appendix for the full PowerPoint presentation.

Highlights:

• WG Chairs must continue to make a Call for Essential Patent and record results in minutes. • SGCC proposal on PD: A subcommittee has indicated it may be interested in including some info

into current standards. Info was presented to SGCC but they have withdrawn their proposal. • CSEE HV Lead Exists: One table may be of interested; SGCC was notified, but proposal has been

withdrawn. • 3 PARs on NesCom agenda for extension in December. • 15 PARs expiring in 2018. • 16 standards expiring in 2018; 2 do not have active PARs. • 8 standards expiring in 2019. • Jointly developed standards:

o C57.15/IEC 60076-57.15 has been submitted to RevCom o 60076-16 is in recirculation or comment resolution o 60214-2 is undergoing comment resolution

MEETING PLANNING REPORT – GREGORY ANDERSON

No written report provided.

Highlights:

• Preliminary registration information indicates about 595 registrants (67 spouses and guests). • The RFID system is in place with no major changes from previous meetings. • We are trying some new name badges with 3 slots and 2-clip lanyards to avoid twisting. • The Spring 2018 meeting will be held in Pittsburgh, PA on March 25-29, 2018, hosted by Dennis

Blake (Pennsylvania Transformer). Dennis gave a brief overview of some of the planned activities. • The Fall 2108 meeting location will be Jacksonville, FL. This will be another hostless meeting.

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OLD BUSINESS

100-Year Anniversary of Transformers Committee – Stephen Antosz / Peter Balma (by phone)

• Slides reviewed with Peter Balma on the phone • Location: Omni-William Penn Hotel • Planning has been underway for many months • Budget has been established, and so far, everything is more or less on plan • Several IEEE dignitaries have been invited • Craig Stiegemeier will be the MC for the banquet • 100-year shirts available • 100-year lapel pins will be available • 100-year template encouraged for use • Banquet meant to be a celebration • Suggestion: memento; coin, glass, coaster? Magnetic coin? • Commemorative program booklet being considered; big portion to be photographs; looking for

transformer photos, old, interesting, etc.; • Greg Anderson suggested focusing on the history of transformer standards and the committee, not

transformers alone • Need contact info for certain previous members • Comments or suggestions to be sent to Peter • Sue: Photo slideshow during meals, etc?

Malia asked if we have videos of previous activity chairs? Memories from past members to be read or posted?

Emeritus Member (EM) Task Force Update – Bruce Forsyth

Bruce Forsyth presented the results of a review of the TF review of emeritus membership. The TF members were Bruce Forsyth (Chair), Stephen Antosz, Don Platts, Sheldon Kennedy, and Steve Shull. The TF assignment was to review the current emeritus membership status and present a report on the following:

a) Updated EM list b) EM qualifications c) Benefits of EM status d) Duration of EM status

9.12.2.1 Updated EM List

The current list of emeritus members includes the following 10 names:

Richard Dudley Donald Fallon Norman Haggerty Kenneth Hanus Thomas Lundquist Bipin Patel Linden Pierce Georges Vaillancourt Robert Veitch Loren Wagenaar

9.12.2.2 EM Qualifications

Qualifications are outlined in clause 4.1.2 of the IEEE PES TC P&P, which states (in part):

“The Emeritus Member classification is intended to apply to individuals who have made longstanding and notable contributions to the Committee, but because of a change of personal situations are unable to attend meetings. An Emeritus Member shall have first been a member and

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shall have demonstrated a high level of participation and be generally recognized for his contribution. These individuals can continue to participate by reviewing and commenting on subjects in their field of expertise and are retained on appropriate and necessary committee mailing lists. Emeritus members can vote as a committee member when they attend a meeting.”

It was the consensus of the TF that no changes to these qualifications are necessary.

9.12.2.3 Benefits of EM status

The benefits of EM status include the following:

a) Regular meeting attendance requirement is waived b) Can vote as a CM when present

The TF discussed whether EMs should be counted as CM for the purpose of quorum. It was the consensus of the TF that EMs should NOT count toward quorum.

9.12.2.4 Duration of EM Status

Neither the P&P nor the O&P specify a duration for EM status. However, under the current definitions, an EM is a special type of Committee Member, and the Committee is required to maintain email and contact information for all Committee Members. This can be difficult to achieve if an EM does not register in AMS or if they do not keep their information current. After lengthy discussions and considering several options, the TF was not able to arrive at a consensus of a recommended duration of EM status.

9.12.2.5 Additional Comments

A suggestion was made to consider finding ways to include EMs in some of the administrative aspects of TC meetings, such as registration assistance or equipment coordination. It was suggested that this might be an idea for the Meeting Planning SC to consider.

After discussion a motion was made by Don Platts (seconded by Ajith Varghese) to remove the last sentence of 4.1.2 in the IEEE PES TC P&P. The motioned passed with 13 in favor, 1 opposed, and 1 abstention.

Update on Chinese Projects – Stephen Antosz

These issues were covered in the IEEE Staff Update (section 9.10).

NEW BUSINESS

Openness of Meetings

Sheldon Kennedy shared a situation where a small TF was formed to address an issue, but it was not on the schedule. Is this an issue? Stephen Antosz suggested any activity that is meeting during the regular meeting times should be on the schedule. A comment was made regarding meetings held between the spring and fall meetings. A lengthy discussion took place. There seemed to be general agreement that it is best for all meetings to be on the schedule, but challenges related to timeliness of responses and how to handle situations where a TF is formed at on meeting with a mandate to complete a task before the next meeting were raised.

Malia Zaman noted there is a Study Group Guideline that may help clarify. Stephen Antosz will review the guidelines and strive to develop a guideline related to scheduling meetings.

Webmaster

We need to accelerate our efforts to transition our website to a new platform. Sue McNelly will not be able to lead this effort. We need someone to lead this transition.

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Approval of SC Meeting Minutes

During his Chair’s report, Steve raised the issue of approval of SC minutes. Bruce Forsyth noted that the SC minutes, which are unapproved, are included in the compiled version of the main meeting minutes as well as stand-alone versions on the website, and that after a few years the stand-alone versions, while not deleted, are not readily available through the website whereas the all the recorded main committee minutes are available. The question of what warrants a revision of the compiled main committee meeting minutes was raised. After a lengthy discussion it was agreed that the Secretary will add a statement at the beginning of the annex section to reflect the SC minutes are unapproved and readers should refer to future meeting minutes to learn about revisions.

SUBCOMMITTEE REPORTS Subcommittee Report/Hot Topic

Bushings (S. Shull)

No pressing issues submitted for inclusion in the minutes.

Dielectric Test (A. Varghese)


Distribution Transformers (S. Shull)


Dry Type Transformers (C. Johnson)

No pressing issues submitted for inclusion in the minutes. Possible change in a WG leader.

HVDC (M. Sharp)


Instrument Transformers (R. McTaggart)


Insulating Fluids (D. Wallach)


Insulation Life (S. Kennedy)


Performance Characteristics (E. teNyenhuis)


Power Transformers (B. Griesacker)

No pressing issues submitted for inclusion in the minutes. One essential patent claim; working on paperwork.

Standards SC (J. Murphy)

Jerry Murphy was absent.

Underground Transformers & Network Protectors (D. Mulkey)


ADJOURNMENT

The meeting was adjourned at 5:28 PM.

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Submitted by:

Bruce Forsyth, Secretary, Transformers Committee

December 31, 2017

Attachments (3): Annex 1 – IEEE Staff Update Presentation Annex 2 – Peter Balma’s Update on 100-yr Anniversary Presentation Annex 3 –TF on Emeritus Membership Presentation

Note: Refer to the Transformers Committee homepage (http://www.transformerscommittee.org/) to view the attachments.

10.0 STANDARDS REPORT – JIM GRAHAM

The Standard Report was presented at the Monday General Session.

The semi-annual Standards Report is included as Attachment 2.

11.0 LIAISON REPORTS

CIGRE – RAJ AHUJA (PRESENTED BY PAUL JARMAN DURING THE THURSDAY SESSION

Raj Ahuja was not present and did not make a presentation. Paul Jarman made a presentation during the Thursday session. Paul’s full presentation is shown in Appendix 4.

IEC TC-14 – PHIL HOPKINSON

Phil Hopkinson presented an overview of TC14 activities. His presentation is available in Appendix 3.

Phil recognized Paul Jarman as the outgoing Chair of IEC TC14. He also recognized Christoph Ploetner who is the incoming Chair of IEC TC14.

STANDARDS COORDINATING COMMITTEE NO. 18 (NFPA/NEC) – DAVID BRENDER

SCC did not hold a meeting since the previous meeting of the Transformers Committee in the Spring.

The next meeting of SCC18 is scheduled for March 12-13 at NEMA headquarters in Arlington, VA. NEC positions of IEEE will be discussed and determined at that time.

Regarding the National Electrical Code, Section 450 covers transformers, and is under the purview of Panel 9. I have a copy of the Public Inputs for the 2020 NEC that were submitted. They are in PDF format, and I can send a copy to anyone who requests same. I believe they can also be downloaded directly from the NFPA Website. NFPA.ORG/70NEXT

If anyone has an interest or opinion to address in regard to any of the Public Inputs, please convey them to me. Email works best, phone second.

SCC-18 will be having a series of Open Forum Discussions by teleconference on: November 7, November 21, December 5 and December 19. You may not submit other Public Inputs (time has passed), but the calls should be informative. Phone number has not been established yet, and I am not sure if non-SCC18 members can attend.

Panel 9 of the NEC does not have a representative of SCC18 at this time. It is a commitment of significant time that your Company should endorse. You would be representing SCC18 and IEEE, not your Company.

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David Brender

STANDARDS COORDINATING COMMITTEE NO. 4 (ELECTRICAL INSULATION) – EVANNE WANG

Standards Coordinating Committee 04 oversees development of standards for Electrical Insulation that span the scope of multiple Technical Committees and Societies (e.g., Dielectric and Electrical Insulation, and Power Engineering) within IEEE.

Scope: • To formulate guiding principles for the evaluation of insulation materials and systems for electrical

and electronic applications. • To formulate principles for the identification of insulation materials and systems based on functional

tests and/or experience. • To coordinate the preparation of standards for functional test programs and diagnostic methods for

the evaluation of insulation materials and systems.

Standards: • IEEE 1-2000 (R2011) Recommended Practice – General Temperature Limits in the Rating of

Electrical Equipment and for the Evaluation of Electrical Insulation • IEEE 98-2016 Standard for the Preparation of Test Procedures for the Thermal Evaluation of Solid

Electrical Insulating Materials • IEEE 99-2008 Recommended Practice for the Preparation of Test Procedures for the Thermal

Evaluation of Insulation Systems for Electrical Equipment

Current Activities: • IEEE 99 –PAR expires Dec 2020. Initial draft and comments are being reviewed by the Working

Group. Working Group is aiming for completion for balloting by Dec 2017 to meet the document expiration of Dec 2018. Anyone interested in joining the P99 WG can contact the chairperson, Evanne Wang: [email protected]

• IEEE 1 –Review of document has been initiated within the subcommittee for determining the scope of work for the next revision. Soliciting volunteers for review and revision of this standard which expires 12/31/21.

For those interested in joining SCC04 or WG for revision of IEEE 1, please contact the Chairperson, Paulette Payne Powell: [email protected]


Evanne Wang

12.0 HOT TOPICS FOR THE UPCOMING WEEK

The Subcommittee Chairs gave a very brief update on topics of special importance being addressed during the week.

13.0 OPENING SESSION ADJOURNMENT

The meeting adjourned at 9:15 AM.

mailto:[email protected]


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Thursday Closing Session

14.0 CHAIR’S REMARKS AND ANNOUNCEMENTS

The Chair called the meeting to order at 11:00 AM.

15.0 MEETINGS PLANNING SC MINUTES & REPORT – GREGORY ANDERSON

Greg Anderson recognized the planning team and thanked them for their efforts.

Information about future meetings can be found on the Committee’s homepage (www.transformerscommittee.org). Hotel information for the next meeting should be available in about a week. Greg noted that the Spring 2018 Sunday celebration is on Palm Sunday and apologized for the timing but noted the challenges with avoiding conflicts with various holidays and other events.

Future meetings (also see Transformers Committee website):

Meeting Date Location 2018 Spring March 25 - 29 Pittsburgh, PA 2018 Fall October 14-18 Jacksonville, FL

Greg noted the Spring 2018 meeting (hosted by Dennis Blake) will be a celebration of the 100-year anniversary of the Transformers Committee.

The RFID system worked well during this meeting and we will continue to use the system and perhaps expand its capabilities in future meetings.

We would like to have a longer queue for technical presentations. Anyone with suggestions or interested is encouraged to contact Tom Prevost.

Greg noted that we need help with managing and setting up the projectors and thanked ABB for storing our boxes of supplies for this meeting.

Regarding hotel reservations, Greg asked everyone to tweak their arrival and departure dates as early as possible to ensure rooms are available for those who want them and to avoid the Committee from having to pays fees for unused rooms.

Finally, Greg announced that this will be his last meeting as the Meeting Planner. Ramsis Girgis asked for a standing ovation for Greg in appreciation of his many years of service as Meeting Planner.

16.0 REPORTS FROM TECHNICAL SUBCOMMITTEES (DECISIONS MADE DURING THE

WEEK)

Reports from each Technical SC were presented. The complete minutes for each SC meeting are included in full in the attached Annexes.

DIELECTRIC TEST SC (AJITH VARGHESE)

See unapproved minutes in the Annex.

DISTRIBUTION TRANSFORMERS SC (STEVE SHULL)


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DRY TYPE TRANSFORMERS SC (CHARLES JOHNSON, PRESENTED BY CASEY BALLARD)


HVDC CONVERTER TRANSFORMERS SC (MIKE SHARP)


INSTRUMENT TRANSFORMERS SC (ROSS MCTAGGART)


INSULATING FLUIDS SC (DAVID WALLACH)


Good morning. The subcommittee met yesterday with 96 attendees. We had a quorum with 33 members present and 69 guests. Please see SC, WG, and TF minutes for more details than shared here today.

Following are some highlights from Insulating Fluid meetings this week:

WG C57.104 Guide for DGA

Claude Beauchemin, chair, and a team of contributors have been working hard to get the data analyzed to produce the needed tables since the New Orleans meeting. The latest draft was sent to the working group for straw ballot. Comments are being resolved. The technical comments were reviewed at the meeting this week to get feedback. After all of the technical issues were reviewed a motion was made to send the present draft on for ballot. Subsequently, the Insulating Fluids Subcommittee unanimously approved the document to proceed to ballot.

WG C57.147 Guide for Acceptance and Maintenance of Natural Ester Fluids

The guide is now in ballot resolution of first recirculation. Negative votes are being addressed and seeking balloters with negative votes to change to positive when the concern has been addressed in an agreeable manner. Draft 5 will be recirculated for 10 days and the plan is to send to IEEE SA for approval by the December 20th deadline.

TF Consolidation of Insulating Liquids Guides

This TF has been awaiting stability in all the feeder documents. We have arrived at the point to submit the PAR. A title and scope have been developed by the WG. The request for PAR will be submitted and timed for the January meeting of NESCOM so the PAR will have a 2022 end date rather 2021.

This concludes my report. Any questions?

Thank you

INSULATION LIFE SC (SHELDON KENNEDY)


PERFORMANCE CHARACTERISTICS SC (ED TENYENHUIS)


At present there are 15 active WG/TF’s in PCS

2018 PAR’s – no issues

P60076-16 IEEE/IEC Wind Turbine Transformers Done but held up at IEC

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C57.158 Tertiary/Stabilization Windings In ballot

C57.110 Non-sinusoidal Load Currents In ballot

C57.21 Shunt Reactors Approve draft at Spring’18

2019 PAR’s - no issues

C57.105 3-ph Transf. Connections Approve draft at Spring’18

C57.109 Through-Fault-Current Duration In ballot

2020 PAR’s – working on draft

C57.164 Short Circuit Withstand Guide

C57.18.10 Semiconductor Rectifier Transformers

2021 PAR’s – in process and no issues

C57.142 - Transient Guide

C57.32A – Neutral Grounding Devices amendment

C57.123 – Loss Measurement Guide

The TF for Audible Sound Revision to Test Code C57.12.90 reviewed

As agreed upon before by TF members, NEMA tables, for no load sound levels, were implemented into Annex C of C57.12.00 after making editorial improvements suggested by TF members in a Survey.

Also, formulas presently included in Annex – C for calculating reference load noise Sound Power levels were replaced with tables of corresponding Sound Pressure levels.

After hearing contributions from manufacturers, consultants, and end users, an unofficial hand vote agreed that the 2 – winding equivalent MVA would be more appropriate for No Load noise and the full MVA would be used for Load noise.

The updated Annex C will be surveyed among TF membership and guests before presenting it to the Subcommittee for survey.

TF for PCS Revisions to Test Code C57.12.90

Discussed again the wording for LTC testing in the factory

New business item that a transformer should be tested with in the same fluid that it will be filled in service. It will have to be seen where this should be put.

TF for PCS Revisions to C57.12.00 Topic to have all temperature rises shown on NAMEPLATE, Top Oil rise, Average Winding Rise,

and Hot Spot Rise. Motion passed to turn this down. Topic to Exclude Cabinet heater loss from the total cooling loss. Motion passed to turn this down. Topic on Clause 7.1.1 on short circuit: Need to clarify if multi-winding transformers should have

fault contribution from all un-faulted terminals, if not otherwise specified by customers. Proposal will be developed to review at the next meeting.

TF to investigate need for OLTC testing in IEEE standards

Presented dynamic resistance measurement and vibro-acoustics as potential OLTC field testing to include in either a new standard or in a present standard

A possible path forward will be worked on for next meeting

No new business

Chairman’s last meeting – Craig Stiegemeier will be the new Chair at next meeting.

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POWER TRANSFORMERS SC (BILL GRIESACKER)


PC57.93 – Guide for Installation and Maintenance of Liquid Immersed Power Transformers: The PAR is expiring in 2018, all members are requested to attend the meeting so that we achieve a quorum and are able to take a vote to go to ballot. A vote is needed to meet the PAR expiration deadline.

STANDARDS SC (JERRY MURPHY, REPORTED BY DAN SAUER)


UNDERGROUND TRANSFORMERS & NETWORK PROTECTORS SC (DAN MULKEY)


BUSHINGS SC (PETER ZHAO)


17.0 REPORTS FROM STANDARDS SUBCOMMITTEE AND STANDARDS (ISSUES FROM

THE WEEK)

Jim Graham was not able to attend the meeting and no report was presented.

18.0 NEW BUSINESS

No other new business was raised.

19.0 CLOSING SESSION ADJOURNMENT


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ANNEX A Bushings Subcommittee

November 1, 2017

Louisville, Kentucky, USA

Chair: Peter Zhao Secretary: Eric Weatherbee

A.1 Opening of the Meeting

A.1.1 Introductions

The Chair opened the meeting with group introduction.

A.1.2 Attendance

Membership count was taken with the following results: 46 of 61 members were present with 74 guests

for a total of 120 attendees. There were 4 new membership requests. There was a quorum.

A.1.3 New Members

Eight new members were introduced to the SC and added to the roster. The new members were Mr.

Hamid Abdelkamel, Mr. Jonathan Cheatham, Mr. Bill Griesacker, Mr. Ismail Guner, Mr. Axel Kraemer,

Mr. Raja Kuppuswamy, Mr. Bruno Mansuy and Mr. Edward Smith.

A.1.4 Chairman’s Remarks

The Chair stated that FERC (Federal Energy Regulation Commission) asked the transformer

committee for feedback on resiliency of the grid and that any comments or suggestions should be sent

to Transformer Committee Chair Steve Antosz.

The Chair stated that the WGs and TFs must maintain a list of submitted Q&A’s that will ease the

transition of new attendees to the meetings. These will be posted prior to each meeting so that they

can be reviewed beforehand. This should help eliminate some of the repetition which will allow the

groups to function more efficiently. The Chair also informed the WG Chairs that they should provide the

findings of their BRG (Ballot Resolution Group) to the SC.

The Chair mentioned that there has been some language discrepancies used in the bushing standards

when converting from “oil immersed” to “liquid-immersed”. The bushing standards having been using

the hyphen while the transformers standards do not. He asked the WG Chair to remove the hyphen if

possible but if it cannot be correct due to their status within the ballot process it will be corrected during

the IEEE editorial process.

The Chair introduced Mrs. Susan McNelly, who is the webmaster for the Transformer Committee and

the Transformer Committee Vice Chair. Mrs. McNelly stated that she is seeking a volunteer(s) to assist

with transferring the IEEE website to a new platform. If anyone can assist with this process please

contact her, [email protected].

The Chair presented the Standards Status Report for bushings, see Appendix A & B. The Chair noted

that 19.02 had an error listing James Smith as Chair while it should be Steve Shull. The unofficial

reference table which was made for the SC meeting was corrected on-the-fly accordingly but the IEEE

Standards Coordinator will be notified after the conference to correct the official version for the next

meeting.

A.2 Working Group and Taskforce reports

A.2.1 C57.19.00-2004 – Peter Zhao, Chair; Eric Weatherbee, Secretary

Mr. Zhao informed the SC that the first meeting was held and that all 57 attendees were granted

membership to the WG. It was agreed that the document was in need of revision and that he will

generate a PAR based on the WG discussion and submit it prior to the next meeting. Mr. Zhao

Annex A

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mentioned some of the areas that need to be address such as clarification to bushing loading, addition

or revision to the definitions, considerations for new bushing technologies and including the additional

bushing applications which come through the two new standards which are currently in PAR. See

complete WG minutes in Appendix C of this report.

A.2.2 C57.19.100-2012 – Tommy Spitzer, Chair; Jeff Benach, Secretary

See complete WG minutes in Appendix D of this report.

A.2.3 WG PC57.19.01-2000 – Dr. Shibao Zhang, Chair; David Wallach, Secretary

Dr. Zhang informed the SC that there was no WG meeting held as the work has been completed for the

PAR. All ballot comments and the revised drafts have gone through circulation twice. The final vote

returned with 102 responses from the 109 pool of ballotters, out of which 89 approved, with 5

disapprovals which was a 94.7% approval rate. All documents were submitted to RevCom for their

review in the upcoming meeting to be held December 5th, 2017.

A.2.4 WG PC57.19.02 Distribution Transformer Bushings – Steven Shull, Chair; Ed Smith, Vice Chair

See complete minutes in Appendix E of this report.

A.2.5 WG PC57.19.04 – Scott Digby, Chair; JD Brafa, Vice Chair; Rich vonGemmingen, Secretary

Mr. Scott Digby informed the SC that the WG did not hold a meeting due to the status of the document,

which currently is in the balloting process. The document received an 85% response rate with a 95%

affirmative vote on its first posting. The BRG (Balloting Resolution Group) is currently reviewing the 78

comments that were received. A PAR extension was granted to the end of 2018.

A.2.6 IEC/IEEE 65700.19.03 – Les Recksiedler (IEEE) and John Graham (IEC), Co-Chairs

The first dual logo standard was approved June of 2014, as such, no meeting was held.

A.3 External Liaison Reports

A.3.1 IEC Bushing Standards Activity – John Graham, IEEE Liaison (Retired)

Although Mr. John Graham has retired he did provide a final liaison report which was displayed to the

SC for their review. See complete report in Appendix F of this report.

A.3.2 IEEE 693 – Eric Weatherbee, IEEE Liaison

Mr. Eric Weatherbee informed the SC that he received an update from Mr. Eric Fujisaki, Chair of IEEE

693, who stated that the document has passed on recirculation with an 81% approval rate. They had

received 36 comments which are being reviewed by their BRG. Mr. Fujisaki stated that the comments

all seemed straight forward and therefore he does not anticipate any issues with resolving them. PAR

expires at the end of 2018.

A.3.3 WG PC57.160 Guide for PD Meas. in Bushings and Inst. Trans. – Thang Hochanh, Chair

See complete WG minutes in Appendix G of this report.

A.4 Unfinished Business

A.4.1 Bushing Overload

Mr. Matt Weisensee was asked to research the bushing overload issue and prepare a presentation for the

SC. Mr. Weisensee presented his findings to the SC and his scope of work proposal for the taskforce.

Complete presentation can be found on the IEEE Transformer Committee Bushing’s webpage. Following

Mr. Weisensee presentation there were several comments made by meeting attendees.

Annex A

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a. Mrs. Susan McNelly stated that previously all of the bushing manufacturers claimed to meet

the overload conditions as specified in the previous iteration of the Bushing Application

Guide. However, when she contacted them to discuss the specifics they all denied being able

to meet what was recommended in the Guide at that time. When the latest version of 19.100

was published it no longer contained a bushing overload recommendation.

b. Mr. Donald Platts stated that we need to be careful when discussing this issue as he had to

clarify several times when people state there is a transformer overload standard which

includes a section on bushings that it is actually a guide. The guide gives an example of

bushing overload for one specific application and is not to be construed as correct for every

situation.

c. A commenter stated that having something similar to IEC, which recommends at the very

least to choose a bushing with a current rating 1.2 times that of the highest rating of the

transformer may help. However, he noted that the top oil temperature should be considered.

d. Mr. David Geibel commented that using the 1.2 recommendation may help some but knowing

the actual application parameters is imperative. Mr. Geibel stated that the Bushing

Application Guide. C57.19.100, explains how to calculate the overload capability but the

entire system needs to be considered. New technology bushings do not have the same

overload capabilities of OIP bushings. In the past, OIP bushings could be overloaded and

take the loss of life from 40 years down to 25 years which may be acceptable. The new

bushing technologies do not have this capability. Once their threshold is passed it can have

immediate consequences.

Following the presentation and discussion the SC voted and approved the formation of the TF to look into

bushing overloading. Mr. Weisensee is seeking members for the TF; the first meeting will be requested to

take place at S18.

A.4.2 Application Guide C57.19.100 as a dual logo Document – IEC inquiry

The Chair informed the SC that as previously decided; IEC was contacted and asked to provide the areas

they would like to add or revise if a dual logo document was attempted. So far there has not been any

response from IEC. The Chair stated that he will allow them a two meeting time-span to respond, if they

fail to respond by then it will be considered a closed topic.

A.5 New Business

A.6 Other

A.6.1 Bushing manufacturers sales drawings

Mrs. Susan McNelly commented that she is finding that the bushing sales drawings are stating that they

meet IEEE 19.01/00 but are in fact not compliant dimensionally with the latest standard although they

may meet an older version of the standard but do not state that is the case. This is causing her to

thoroughly review and compare every sales drawing with the standard values to verify they are indeed

complaint with the latest standard which is extremely time consuming. She requests all bushing

manufacturers to clarify what exactly is meant when stating their bushing meets 19.00/01 on their sales

documents.

A.6.2 TF Investigation into bushing PD

Mr. Bill Griesacker is seeking members to join his TF that is investigating PD in bushings during

transformer factory testing. Mr. Griesacker is especially in need of bushing manufacturers to join. If

anyone is interested they may contact him following the meeting

Annex A

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A.6.3 Liaison among Bushings and other Subcommittees

The Chair noticed that requirements for bushings in some other transformer standards, e.g., C57.12.10,

C57.91, are not consistent with current bushing standards. A liaison would be helpful in streamlining

these inconsistencies.

A.7 Adjournment 10:50 am

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Annex B Dielectric Tests Subcommittee

November 1sth, 2017 Louisville, Kentucky

Dielectric Tests Subcommittee

Chair: Ajith M. Varghese Vice-Chair: Thang Hochanh Secretary: Poorvi Patel

Room : Marriott 5+6 Date : November 1st, 2017 Time: 11:00 am to 12:15 pm

Members : 133 Present at time of checking : 93 Present per attendance roster & recorded to AM System: 93

Guests present : 133 Membership requested : 20 Membership accepted: 17

B.1 Chair’s Remarks

The Chair briefly highlighted the requirement that while introducing one need to state their employer/ company and sponsor if difference from company. Chair also reminded that IEEE and transformer committee are non-commercial organizations and standards shall focus only in developing performance and functional requirement and not design and construction details.

The Chair reminded all attendees to have updated information, such as email address, in the AM system as for all correspondence this system is used. Regarding the AM system, Sue McNelly is looking for an IT interested individual that can help to upgrade and update the AM-system.

The Chair clarified the Ballot resolution process. Often a smaller resolution group is formed and the comments are resolved by conference calls and TF during meetings. It’s important that once all the ballot comments are resolved the document is circulated to the WG for a final approval before re-submitting it to the subcommittee for approval.

The Chair reminded the WG and TF leaders to submit their minutes from the meetings within 30 days to the SC chair and secretary. The SC Secretary then has to submit the SC minutes within 45 days of the SC meeting. To minimize revision and errors in the sub-committee level and transformer committee level minutes please send the final version of your minutes.

The Chair reminded to start every meeting, conference calls if there are any patents that are known to be applicable for within the area of WG scope. If yes, patent claim type should be noted but not discussed at the working group meetings. Calls for Patents is not required for TF.

The Chair shared details of upcoming PES sponsored meeting as well as details of next transformer committee. IEEE PES T&D Expo in April 16-19 of 2018 in Denver, CO, USA and the next IEEE PES General meeting – Aug 5-9: Portland, Oregon, USA. The next transformer committee will our 100th Anniversary meeting from March 25th to March 29th, 2018 in Pittsburgh, Pennsylvania. There will be a Sunday 100th anniversary banquet with fun entertainment, so please plan for this event. The fall meeting 2018 will be held in Jacksonville, Florida 14th -18th of October 2018.

The Current Status of PARs was presented by The Chair. C57.161 Guide for DFR Measurements is currently under ballot resolution process the par expires December 2017 and an extension was submitted.

ANNEX B – Dielectric Tests SC

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The Par was approved for one year extension to 2018. Par for C57.12 Guide for the Detection of Acoustic Emissions from Partial Discharges in Oil Immersed Power Transformers expires in 2018 and there is a risk that revised guide will not get released before current standard is moved to inactive-reserved status. The document is now ready for going to ballot that will be decided to do so in this meeting. C57.113 Recommend Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors a PAR has been submitted and will be taken up in the December meeting for approval. A new working group will be formed in Pittsburgh in spring 2018. All other pars are in good order.

The Chair reminded the WG on attendance requirement for new membership and for continuation and the requirement to have attendance updated in AM system i.e. to attend two out of last three meetings or three out of five last meetings.

The secretary presented the new members and welcomed them to the subcommittee. 24 guests had requested membership in the last meeting in New Orleans and 19 where accepted. 9 members where changed to guest status for not regularly attending meetings.

B.2 Quorum, Approval of Minutes and Agenda

The membership list was shown and a show of hands of committee members present showed that a quorum of members were in attendance at the start of the meeting. 93 out of 133 members were present, so there was a quorum.

All attendance is recorded in AM System. Per verification of roster 93 members and 119 guests attended the SC in Louisville Kentucky.

The agenda was presented by the chair and it was unanimously approved.

The minutes of the Spring 2017 meeting at New Orleans meeting was approved unanimously.


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B.3 Taskforce and Working Group Reports B.3.1 TF on External Dielectric Clearances

Eric Davis, Chair; Troy Tanaka, Secretary The Task Force on External Dielectric Clearances met on Monday October 30, 2017 at 9:30 AM in the Louisville Downtown Marriott. There were 48 people in attendance; 11 of 18 members, and 37 guests. Five guests requested membership, but will not be granted membership because the task force activities are coming to an end. A quorum was achieved. The full attendance record is available in the AM System. The meeting agenda and spring 2017 meeting minutes were unanimously approved. In response to a previous survey comment, the task force discussed the proposed external clearances for switching impulse. The chairman presented a chart showing 4 different sets of clearances: 1) the IEC clearances, 2) the CSA clearances, 3) the 50% withstand clearances, and 4) the 90% withstand clearances. The Task Force discussed using the IEC values, the 50% values and the 90% values. After some discussion, Dan Sauer moved that the curve representing the 90% withstand clearances be included in the proposed table and include notes with formulas and assumptions used in determining the 90% withstand clearances. Ajith Varghese seconded the motion. After discussion, the task force voted with 8 in favor of the motion, 1 against the motion, and 1 abstention. The motion passed. In addition, the chairman took a straw ballot of non-members. The straw ballot was roughly 2/3 in favor of the motion and 1/3 against the motion. The chair will send the text, table, and backup information to the Dielectric Test Subcommittee, with a request to send out a survey. Finally, the chair asked for volunteers to validate the formulas and resulting values as shown in the table, prior to sending out the survey. Dan Sauer and David Wallace volunteered. Dan Sauer moved to adjourn the meeting. Ronnie Minhaz seconded and the meeting was adjourned. Chair Eric Davis Eric Davis, WG Chair, placed a motion to send out a survey with revised values to the subcommittee members. Second motion- Dan Sauer. None oppose. The motion was unanimously approved.


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B.3.2 WG on Dielectric Frequency Response Analysis (DFR) Ali Naderian, WG Chair; Peter Werelius, Vice Chair, Poorvi Patel, Secretary Summary of activities of C57.161 WG this year: Draft D.2 was sent for balloting January 15 2017 C57.161 DFR D.2 was 91% approved with a response return rate of 78%. The WG approved formation of “ballot resolution group” May 14 2017. The ballot resolution group formed to go over 165 comments received. 30% technical 70% editorial. On 28-Sep-2017 the IEEE-SA approved the PAR extension request until 31-Dec-2018. Draft D.3 will be circulated to the WG members within 2-4 weeks from now to get the approval by email for the second round of balloting. Upon approval of the WG members, D.3 draft will be submitted for re-balloting.


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B.3.4 TF on Revision of Impulse Tests

Pierre Riffon, Chair; Daniel Sauer, Vice-Chair The TF met on October 31, 2017, from 4:45 pm to 6:00 pm. Twenty-five (25) members and fifty (50) guests attended the meeting. Nine (9) guests requested membership but only 5 are eligible to become members. The meeting was chaired by Pierre Riffon, chair of the TF. Mr. Daniel Sauer was the vice-chair.

Attendance has been recorded in the AM system.

Required quorum was met, presence of at least 23 members was required. Twenty-five members were present. The TF membership and guest roster has been reviewed after the New Orleans meeting and members who did not attend the last three meetings were moved as guests.

Revision 2 of the agenda has been approved unanimously.

The Vancouver and New Orleans meeting minutes were approved as written by all members present.

The first item of business was related to the proposal of modifications to clause 10.3.1.3 of C57.12.90 concerning chopped-wave tests. This proposal was sent as third survey within the TF and within the Dielectric Tests Subcommittee membership and guests. Since then, some editorial changes have been implemented by changing the words "chopping time" by "steepness of voltage collapse". The revised proposal is making full consensus within and will be sent to Steve Antosz for inclusion in the next revision of C57.12.90.

Under New Business, four subjects were discussed:

• Stabilizing and tertiary winding terminals status during lightning impulse tests;

• Neutral terminal(s) status during lightning impulse test on line terminals (impedance grounded neutral, floating neutral);

• Tap changer position during switching impulse tests;

• Use of the voltage function during lightning impulse tests.

For the stabilizing and tertiary terminals status during lightning impulse tests, the Chair made a preliminary proposal mainly to see if the principles can be accepted. Tertiary terminals have to be treated as line terminals during lightning impulse tests while stabilizing winding terminals shall be in the same condition as in service even if all three phases of the stabilizing winding are brought out only for testing purposes. The corner that is normally closed and grounded during service shall be closed and grounded during

Louisville, Kentucky, USA;

Unapproved meeting minutes;

Task Force on Revision of Impulse Tests.

Rev. 0 17/10/31 2


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impulse tests. Open terminals of the stabilizing windings shall be let in open circuit during impulse tests even if they are temporary brought out from the tank for test purposes. A revised proposal from the TF Chair will be surveyed to the TF members and guests prior to the next meeting.

Neutral terminal(s) status during lightning impulse tests on line terminals (grounded, impedance grounded neutral, floating neutral) has been discussed. The actual text of C57.12.90 seems to be clear enough and, for the time being, does not need to be changed. No further actions from the TF are necessary.

Regarding the tap changer position during switching impulse tests, the Chair made a preliminary proposal that the tap position shall be such that the maximum turn-to-turn voltage is achieved. The wording of proposal will be improved and a modified proposal will be surveyed within the TF prior to the next meeting.

Finally, Mr. Thang Hochanh did ask if the test voltage function as defined in IEC 60060-1 and in IEEE Std 4 is in use in USA. Mr. Hochanh is the Convenor of the MT responsible of the revision of IEC 60076-4 (Impulse test guide). Some problems of using the voltage function have been identified in his MT. For the time being the TF is not taking any actions until the work of the IEC MT is completed.

The meeting adjourned at 6:00 pm on October 31, 2017. The adjournment motion was made by Mr. S. Som and was seconded by Mr. A. Bolliger.

The next meeting is planned to be held in Pittsburgh, PA, on March 27, 2018.

Pierre Riffon P. Eng.

TF Chair


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B.3.5 TF on Revision of Low Frequency Tests Louisville, KY – October 31, 2017, 1:45 p.m., Chair: Bill Griesacker, Vice Chair: Daniel Blaydon, Secretary: Myron Bell There were 118 attendees, 36 of 52 members and 80 guests were present at the meeting; 20 guests requested membership, 12 were granted. More than 50 % of the working group members were in attendance at the meeting, therefore a quorum was present. 1. The meeting was called to order at 1:45 PM followed by introductions. 2. Attending members were counted and quorum was verified. 3. There were no objections to unanimous approval of the agenda. 4. There were no objections to unanimous approval of the meeting minutes from the 2017 Spring meeting in New Orleans. 5. Old business a. Tap changer position during induced test (survey results). Bertrand recently issued a new draft of the proposal taking comments into account. The results of the survey will be summarized for the task force. b. Applying pressure inside a transformer tank during induced test (survey results) Steve Antosz will submit a new proposal concerning the application of pressure during factory PD testing. This proposal will be surveyed before the next meeting. c. Alternative Applied test method for HV Delta windings. Chair will approach SC about forming a group to develop a Guide for Low Frequency Dielectric Test Guide document. d. Gassing issue for certain types of transformers with wound cores: proposal for new design test Phil Hopkinson’s recommendations concerning gassing Issues for certain types of transformers with wound cores will be distributed to the task force. This will be discussed at the next meeting. 6. TF PD Factory Limits report by Vinay Mehrotra Two motions were made to accept IEC PD limits and both failed. There were calls for more study to justify reducing PD limits. The TF will conduct a survey to better understand what will be accepted changes to standards for PD limits. 7. New business a. PD in bushings during factory testing. A study group will be formed to provide a recommendation if there should be additions or changes to standards or guides to address this topic. Users, transformer manufactuers joined but no bushing manufacturers joined. The chair asked the bushing committee for bushing manufactuers to join the study group and three volunteers joined.. b. Test voltage source measurement for low frequency test– Bertrand Poulin identified a gap in the transformers standards based an IEEE Std. 4 requirement that each apparatus standard define the value of the test voltage for alternating voltage as the “peak value divided by √2 , or the rms value as defined by the relevant apparatus standard”. Bertrand provided a recommendation to add text to provide this definition. Bertrand’s proposal will be provided in the form of a survey to the task force. ************************************************************************************ \


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B.3.6 WG - IEEE Guide for the Detection of and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors (C57.127) Chair: Detlev Gross Chairs Vice Chair: Jack Harley Secretary: David Larochelle Louisville, KY, October 31 2017 Room: Marriott 1-3 Meeting Attendance The working group met at 11:00 AM. 78 persons were in the room and 15 members out of 23 were present. Quorum requirement was met. Complete attendance record is available in the AM System. Discussions The meeting started with the unanimous approval of the agenda (Thang Hochanh, seconded by Hemchandra Shertukde). The minutes from New Orleans meeting were also unanimously approved (motion by Hemchandra Shertukde, seconded by Thang Hochanh). A patent was brought to our attention during the call for patent. The new information relates to the addition of the Hinckley energy criterion to the Annex B or the guide (informative). The patent number is: US7286968 B2 and is owned by Areva T&D (now GE). We understand that IEEE SA will analyse this. In case it conflicts, we will either drop this section or solve it by having GE providing the “letter of assurance for essential patents”. The main discussion of the meeting was about a comment regarding the differentiation of the two main methods (all-acoustic and using electric trigger) and their respective level of detail. Although the guide already covers both methods, it was proposed that more insight regarding the mathematical determination of time of arrivals could be useful. It was mentioned that the main objective of this guide is to educate users on the principles of acoustics and to bring background information on the different techniques that exists on the market. Having many details on the mathematical implementation of the different algorithms involved in these solutions is not considered as valuable information to be detailed in the guide, but could be included as a reference in the bibliography. Raja Kuppuswamy made a motion to include further information on the all acoustic technique. No members voted for the motion. The motion failed. We then had a motion to approve the current draft in order to initiate the sponsor ballot process after the Mandatory Editorial Coordination (Motion by Hemchandra Shertukde, seconded by Marco Tozzi). The motion was unanimously approved. The group will meet again in Pittsburgh for the spring 2018 meeting. Adjournment The meeting was adjourned at 11:50 AM. David Larochelle Motion was put on the floor by Detlef Gross (WG Chair) to submit the document for ballot. Second motion was made by Alexander Kraetge. None oppose. The motion was unanimously approved. This document will now be submitted for first round of balloting.


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B 3.7 Working Group for PD in bushings, PTs and CTs – PC57.160 WG Secretary: Thomas Sizemore; WG Chair: Thang Hochanh Meeting Minutes October 30, 2017 at 4:45 – Louisville, KY Attendees: 68 Members attending: 20/33 - Quorum requirements were met. Rosters: Circulated for members and guests. Agenda: An agenda was presented and approved without objections for the meeting. Essential Patent Claims: Text was displayed and the Chair inquired as to if anyone knew of essential patent claims. None were brought up during the meeting. Minutes: Minutes were approved due for the Vancouver and New Orleans meetings. Motion to approve by David Wallace and this was seconded by Detlev Gross. Items discussed based upon comments received: A number of comments were received from 2 attendees for discussion as noted below. Comments discussed from Robert Middleton:

• Under Keywords both voltage transformer and potential transformer appear. The text in the standard only refers to voltage transformer. – The unused keyword will be removed.

• Under Normative References IEC 60270 appears twice. – The second reference will be removed.

• Under 6.3.1 specific ranges are given for C1, C2 and C3. Large variations are possible for these capacitances. We see no need to specify a range. – This was previously discussed in the working group. The values given are as a typical reference, other values area possible. No change is to be made.

• Annex C needs more editing to improve the English. Also better referencing of the Figures is needed. - References will be updated. A review of the English used will be made for grammatical type issues.

• Clause C2 in Annex C references Annex 2 Figure 1.a? - Will be updated. Comments discussed from Raja Kuppuswamy:

• Comments were mostly related to PD monitoring with online equipment which is a valid technique but outside of the scope of this guide.

Additional items discussed: A motion was made to move this guide into the balloting process. A motion was made by David Wallace and was seconded by Shibao Zhang. The motion was accepted at the working group level. Motion to adjourn: A motion was put forth by Marek Kornowski and was seconded by David Wallace. Spring meeting 2017: This WG may not meet at the spring 2018 meeting as this guide should be in the ballot resolution process. Next version of draft: Actual draft is technically correct, except some last editing corrections addressed this week. We submit to the IEEE ballot process after getting the agreement of the concerned Subcommittees (Instrument Transformers, Bushings and Dielectrics Tests). Date: 2017-30-10 Chairman: Thang Hochanh Secretary: Thomas Sizemore Motion was put on the floor by Thang Hochanh to submit the document for ballot. Second motion was made by Pierre Riffon. None oppose. The motion was unanimously approved. This document will now be submitted for first round of balloting.


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B 3.8 Task Force Winding Insulation Power Factor & Winding Insulation Resistance Limits Diego Robalino (Chair) and Aniruddha Narawane (Secretary) at the meeting Tuesday 10/31/2017, Louisville, KY. Meeting initiated at 08:00 AM at the Marriott 1-3, Marriott Louisville Downtown, Louisville, KY USA Diego Robalino (Chair) and Aniruddha Narawane (Secretary) at the meeting Meeting started with introduction of attendees At the beginning of the meeting, 15 members were in the room out of 44 total members listed. Quorum was not established however after a while 7 more members joined the meeting completing quorum requirement to continue with the agenda.

• Data collected from Meeting Roster o Activity Name: TF Winding Insulation PF/Resistance Limits

Activity ID: 2186 Number of Members in Activity = 44 Number of Members Present = 23 Quorum Present = 52.2% Number of attendees = 68

• TF Members not attending for 3 consecutive meetings were revoked membership and listed as guests

Number Last Name First Name 1 Yeboah Kwasi 2 Robins Kirk 3 Hochanh Thang

• TF Guest who previously requested membership and were granted

Number Last Name First Name 1 Ghosh Rob 2 Bolar Sanket 3 Foschia John

• TF Guests requesting membership in this TF

Number Last Name First Name 1 Dorris Don 2 Salva Jose 3 John John 4 Joshi Akash 5 Martinez Rogelio

• Agenda

o Introductions o Attendance headcount o Approval of agenda


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o Announcements regarding Chair and Secretary positions o Approval of Spring 2017 meeting minutes o Report on survey table conference call o Task Force Report Comments review. o Any new topic for discussion. o To review and recommend Accuracy requirement for power factor test defined under

C57.12.90 – 10.10.2. Discussions from meeting is included in DTSC minutes. o Meeting Adjourn o Any new topic for discussion. o To review and recommend Accuracy requirement for power factor test defined under

C57.12.90 – 10.10.2. Discussions from meeting is included in DTSC minutes. o Meeting Adjourn

• There was unanimous approval of agenda • There was unanimous approval of Spring 2017 New Orleans meeting minutes (Motion by Poorvi

Patel, Seconded by Ajith Varghese) • Diego mentioned that due to other commitments, Susmitha has requested to be relieved from

Chair and Diego has taken over as new TF Chair. • Diego requested for volunteers for Secretary’s position. Aniruddha Narawane volunteered to

contribute with this TF. • The scope of the TF was read again for all attendees • Chair presented the update on documentation gathered so far supporting the activity of this TF

and made reference to the conference call set up in Sept 2017 as discussed in previous meeting. Chair also mentioned that with the internal survey and data relative to PF values some limits could be established however the IR data was insufficient and misleading.

• Diego requested attendees to share the PF test data for factory and field test with an intention to analyze it and possibly move forward towards the goal of TF. Ajith Varghese expressed that there should not be any concern about sharing the data. Chair also mentioned that if anyone requires NDA to be signed it is possible to do it. Poorvi Patel suggested that DGA group may have some feedback regarding the data base they used

• Charles Sweester asked about type of data to be collected if it should be new transformers or in service transformers and Diego clarified that TF is looking for new transformers factory test and before commissioning field test data.

• Poorvi Patel asked about the PF values to be shared and it was advised to collect the data for CH, CL and CHL.

• Diego also mentioned that there will be at least two meetings scheduled before the Spring 2018 meeting

• Following 11 attendees volunteered to share the data. Diego also mentioned that a standard excel sheet will be sent to the volunteers to populate it with the data. The data sheet was agreed during the conference call in September

Jaber Shalabi Akash Joshi Jermaine Clonts Nitesh Patel Fernando Miguel Leal Ramirez Don Dorris James Antweiler Toby Johnson Cihangir Sen Jorge Cruz Alan Peterson


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• Diego presented the plots for IR values for over 500 test results on different KVA/MVA transformers.

• There was open discussion on these values. o Dan Sawyer mentioned the temperature dependency of the data and the corrected data

may or may not be accurate. He also questioned about the level of confidence about the IR data collected so far relative to wide variation of values.

o There was discussion regarding the variables associated with these values and validity of the data based on these variables. e.g. Frequency, temperature, time, accuracy of instrumentation and type of measurement. Baitun Yang mentioned about different data measurements techniques.

o Aniruddha Narawane mentioned that all questions are very valid and relevant but they will be more appropriately addressed once some data analysis is done and presented to the group

o Nitesh Patel asked if the data to be provided was to be corrected to 20°C or not and it was mentioned to provide the raw data without temperature correction.

• Diego mentioned that there is a request from subcommittee to recommend the instrument accuracy requirements for PF under C57.12.90-10.10.2

o Relevancy of ±0.25% accuracy was discussed with reference to the measurement value. Charles Sweester and Baitun Yang mentioned that it may require more clarification

• New Topic o Question was asked regarding the possible difference between factory test value and field

test value before commissioning and how the TF plans to address this o Scale of measurement for instruments and data format to be standardized o Correlation between the PF and type of core construction

• Diego mentioned that: the data format will not be an issue since TF will be collecting the data in EXCEL format. Also scale of measurement will be based on the test. Core type can be a factor which affects the PF values and it should be included in data collection.

• No more topics • Motion to adjourn by Rob Ghosh Seconded by Aniruddha Narawane • Adjournment at 9.10 am


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B.4 Liaison Reports Liaison Report to Dielectric Tests Subcommittee of IEEE Transformers Committee

Submitted by Jeff Britton (HVTT Subcommittee Chair) November 1st, 2017

Louisville, KY

The High-Voltage Testing Techniques (HVTT) Subcommittee of the IEEE Power System Instrumentation and Measurements Committee met in Clearwater Beach, Florida on October 5th, 2017, in conjunction with the Fall 2017 IEEE PES Surge Protective Devices Committee. There were a total of: 13 Onsite Attendees – Comprised of 5 Members and 8 Guests 14 Web Meeting Attendees – Comprised of 5 Members and 9 Guests HVTT Subcommittee Membership was 14 persons at the time of the meeting, so quorum was achieved. Martin Greschner of HIGHVOLT, Gavita Mugala of Siemens, and Daniel Schweickart of the US Air Force were announced as new members of the Subcommittee. Working Group Updates: HVTT presently has 2 active working groups, 1 Task Force and 1 Entity Ballot Sponsorship Project active with IEEE SA. WG P1122 “IEEE Standard for the Digital Recorders for Measurements in High-Voltage and High-Current Impulse Tests” Chaired by Jeff Britton (Phenix Technologies), with Secretary Tom Melle (Highvolt).

This WG met on October 5th, 2017 and continued to review and discuss the performance requirements for digital recorders as stated in IEEE 1122-1998, and to harmonize these technical requirements as much as possible with the present draft for the revision of IEC Standard 61083-1, which is presently in the CDV stage. During the meeting, the WG voted to add a new “Type Test” classification to the test hierarchy presently defined for in the standard for approving digital recorders. Based on general improvements in the quality and technology of digital recorders since IEEE 1122 was last revised in 1998, the WG agreed that certain tests previously required to be performed on every digital recorder manufactured may now be performed once, with the results to be documented by the manufacturer. After the HVTT meetings in Florida, the maintenance team responsible for the revision of IEC 61083-1 met in Toronto in November. Although the IEC draft was already advance to the CDV stage, significant changes were proposed to the overall allowed amplitude uncertainty. These proposals will have to reviewed in the IEEE WG, as there may be some problems and conflicts generated by these changes in both the IEC and IEEE documents.

WG P510 “Guide for Electrical Safety in High-Voltage Testing” Chaired by Jeff Hildreth (Bonneville Power Administration) with Secretary Johannes Rickmann (Phenix Technologies)


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This WG met on October 5th, 2017 and continued discussions on the re-writing of the old (withdrawn) IEEE 510 Safety Guide. The chairman gave a presentation on the contents of European Safety Standard EN 50191 “The Erection and Operation of Electrical Test Installations”, with discussion on how this material might be applied in various HV Testing scenarios. Frank Boehme of HIGHVOLT gave a presentation regarding the application of the principals of “Safety Integrity Level”, as defined in the IEC machinery safety standard 62061, into the control circuitry of high voltage test equipment. The chair asked for volunteers to contribute to the individual sections of the guide.

The TF to develop a Scope and Purpose statement for a general IEEE PD guide met for the first time on October 5th, 2017, chaired by Nigel McQuin of McQuin Power Consulting.

Presentations on the topic of PD Measurements were given by Nigel McQuin and by Detlev Gross of Power Diagnostix. Afterwards, the following objectives were agreed upon by the TF members:

1) The IEEE Guide should be generic in nature, and shall avoid any conflicts with existing apparatus standards in terms of specific test procedures or acceptance levels

2) The IEEE Guide will not attempt to duplicate or supplant IEC 60270, but shall serve as a practical, supplemental guide on proper PD measurement technique

3) Measurement sensitivity and background noise level will be addressed 4) Some discussion will be included on the effects of the distributed nature of internal HV

equipment design, and the impact this has on measuring sensitivity (e.g. distributed versus lumped circuit models)

5) The TF hopes to include some information on general PD patterns that may result from common physical defects in insulation, including the effects of voltage and time

The TF chair put out a call for additional topics of interest, with responses to be returned by the end of November. Anyone who would like to offer a topic may contact Jeff Britton, Jim McBride or Detlev Gross.

The PSIM Committee (parent committee of HVTT) is participating as a PES Technical Committee sponsor of an Entity Ballot PAR submitted by State Grip Corporation of China, titled “Guide for Field Measurement of Fast-Front and Very Fast-Front Overvoltages in Electric Power Systems”. The WG is composed mainly of Chinese member companies (entities), with the first WG meeting scheduled to take place in Chengdu, China, on Nov. 13th and 14th, 2017. PSIM has requested through IEEE SA that the meeting be conducted in the English language, and that a Web meeting be offered so that representatives of the PSIM Committee may observe and participate.

The next round of HVTT Subcommittee meetings are scheduled to take place in January of 2018, at the PES Joint Technical Committee Meeting in Jacksonville, Florida.

Anyone interested in participating in the work of HVTT should contact Arthur Molden, Jim McBride or Jeff Britton.


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B.5 Discussions

B.6 Old Business

PAR request for Guide for Field Measurements and Pattern recognition of Partial Discharges in Oil-immersed Power Transformers

Chair provided on update on SGCC request for a new guide for field measurements and Pattern recognition of Partial Discharges in oil-immersed Power Transformers, PAR request for which was received by IEEE SA before F16 meeting. A presentation to support this request was presented during subcommittee meeting (F16) in Vancouver. During the S17 ADCOM meeting PAR request was reviewed and the request was not approved due to significant overlap with existing standards. Further to this, before the F17 meeting, there was additional discussion (Teleconference) between IEEE SA and Transformer committee and it was agreed that if SGCC would like to pursue this further, it will be best to have it included in future revision of Field guide C57.152 provided SGCC is willing to participate.

Chair informed the subcommittee that Malia Zaman, IEEE SA liaison had informed during F17 ADCOM meeting on Sunday that informed that SGCC has withdrawn the PAR. With this, now this topic is closed.

B.7 New Business Validity period of C57.113 Recommended practices for Partial Discharge Test is expiring in 2020 and a subcommittee motion for approval to start a WG at the next meeting was made by Alexander Kraetge and second by John Foschia. Motion was passed unanimously. PAR for revision of standard is submitted for IEEE SA approval. WG will have it first meeting during S18, and will chaired by Naderian Ali. John Foschia will be the secretary. Motion was put on the floor by Bill Griesacker to form a TF to develop PAR for creating a new guide on Low Frequency Dielectric Testing. Motion was seconded by Dan Sauer. None oppose. The motion was unanimously approved. Don Ayers brought a motion to define PD Testing requirement for on Class 1 transformers. Motion was seconded by Thang Hochanh. Discussion followed many utilities stated they already have requirement in their own specification. Motion was modified to include this as topic as new item for further discussion and lay ground work in low frequency test TF. Amended to this effect was proposed by Dan Sauer which was accepted by Don Ayers and seconded Detlev Gross. Motion was passed unanimously. Thang Hochanh brought to subcommittee’s attention that, Impulse analysis software may not be evaluating Beta’ and K-factor accurately for many waveforms like Low voltage winding with high


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oscillations and chop wave. Thang is requesting feedback from users, who are willing to share their issues and would like issue to be taken up by IEC groups is requested to send information directly to Thang.

B.8 Adjournment

Meeting adjourned 12.15 PM. Motion to adjourn made by Dan Sauer and Marcos Ferreira

Minutes respectfully submitted by: Poorvi Patel Secretary DTSC.

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Annex C Distribution Subcommittee – Chair: Stephen Shull

November 1, 2017 Louisville, KY, USA

Chair: Stephen Shull Vice-Chair: Jerry Murphy Secretary: Josh Verdell

C.1 General Opening

Steve opened the meeting welcoming everyone to the meeting. Josh circulated the rosters. To establish a quorum, a list of members were displayed and a count of was made. We did have a quorum with 37 of the 55 members in attendance by count of those identified on a slide presented in the meeting. Recorded attendance gave 129 in attendance, 42 members and 26 requesting membership.

The agenda was reviewed, motion made by Dan Sauer, seconded by Gael Kennedy and approved by unanimous acclamation of the members in attendance.

The Fall 2016 meeting minutes were reviewed, and a motion was made by Ron Stahara, seconded by Craig Colopy and approved by unanimous acclamation of the members in attendance.

C.2 Working Group and Task Force Reports

IEEE C57.15/IEC 60076-21 – Step-Voltage Regulators – Craig Colopy

Craig presented the following minutes from the working group meeting on October 30, 2017 at 4:45 p.m. with 45 people in attendance.

1. Craig Colopy opened the meeting and introductions were made by the attendees.

2. Distribution of attendance sheets. Essential Patent call made by Craig Colopy - None received from attendees. Check for Quorum was made, 23 from card reader vs. 22 visual count, Members in attendance. Quorum was achieved (Total 38 members).

3. Approval of agenda - Dan Sauer made Motion, Steve Shull seconded, no opposition to approval. Approval of minutes from Spring 2017 meeting in New Orleans, No objections to unanimous approval - Approved.

4. Craig reviewed status of Draft 3.2 sent as a CDV through IEC and balloted through IEEE with two recirculations. 100% approved Draft 3.2 sent to RevCom for review/approval at the Dec 6 2017 Meeting . Forecasted IEEE publication set for March 2018 while IEC version is forecasted for August 2018.

5. Move for Adjournment - Dan Sauer made Motion, Steve Shull seconded, no opposition to approval. Close of meeting.

Submitted by: Gael R Kennedy and Craig Colopy

Annex C

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IEEE C57.12.20 – Overhead Distribution Transformers – Al Traut

Al presented the following minutes from the working group meeting on October 30, 2017 at 11:00 a.m. with 73 in attendance.

The meeting was called to order was immediately followed by introductions.

The patent policy was reviewed per guidelines from the ADCOM Meeting:

“If any individual believes that Patent Claims might be Essential Patent Claims that fact should be made known to the entire working group and will be duly recorded in the minutes of the working group meeting. This request shall occur at every standards-developing meeting once the PAR is approved by the IEEE-SA Standards Board.” None were brought forward

Based on the WG members projected on the screen, and count made of those shown, a quorum was declared. There were 34 of 41 members present.

The Chair asked if any member objected to the proposed agenda as displayed to the Working Group. No objections were brought forward so the agenda was unanimously approved as submitted.

The Chair asked if any member objected to the S17 (New Orleans, LA) minutes as submitted to the Working Group. No objections were brought forward; therefore, the S17 Minutes were unanimously approved.

The Chair reviewed the meeting requirements for membership Member:

• Request membership at the first meeting of the WG. • Attend 2 consecutive meetings and request membership. • Membership is granted following the 2nd meeting. • Miss 2 consecutive meetings and you may be removed from

membership. • Special circumstances will be considered.

Guest: Any attendee that is not a member.

Four new members were recognized and added to the membership list: • Igor Simonov • Jermaine Clonts • Charles Morgan • Jeff Valmus

The two rosters were circulated with instructions.

The current status of the C57.12.20 document was reviewed:

• C57.12.20-2011 was published on September 20, 2011 given the 10-year cycle the standard would have been inactivated on September 20, 2021

• PAR was approved by NESCOM June 2012.

• PAR Extension was granted Dec 2016 with the PAR Expiring on December 31, 2017.

• Re-circulate ballot and submit to RevCom before 10/2017 deadline.

• Draft 6 was approved at 9/28/2017 RevCom Meeting

The Chair reviewed the final Draft 6 edits that were submitted to RevCom

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1. One of the IEEE coordinating groups had several comments related to adding the words ”help” or “assist” when referring to items regarding prevention, e.g., “help prevent…” vs “prevent…”. This occurs several times in the document. This was changed to meet their suggested changes.

2. Table 5 was reviewed and it had a format error; therefore, we broke voltages was into two columns one singe phase and the other three phase. In addition, the use of the delta symbol for three phase voltage ratings was addressed. Same thing on LV Terminal sizes (voltage ratings) 150 to 225 kVA dimensions were changed from the previous revision due to a typo.

3. Table 11 was reviewed; Updated the voltage rating and use of the delta symbol as discussed in Table 5 “Z” dimension does not apply for HV bushings with more than 30” creep length.

4. 7 figures were for configuration. One of the IEEE editors wanted to change the 7 “Figures” to “Tables”. The Chair objected due to the historical used of the term “Figures” and the editor accepted this justification.

That was the extent of the changes made to C57.12.20 REV 6

Comments were requested from the working group and none were received from the floor. The Chair requested wanted a note added for us to check of the 347/600Y rating for consistency in the document. This will be part of final editorial review.

The Chair reviewed some of the topics slated to be addressed in the next revision:

1. Introduce and address the platform mounting arrangement into the standard.

2. The Chair asked Carlos Gaytan for the status of 12.39. If/when it is published there will be cause for us to refer to it in our standard and delete some of the specific information in 12.20, eg, clause 9.

3. Three phase connections are currently delta and wye only. Do we want to include the TT connection in this standard? We will place on agenda for discussion

4. “Figure” vs “Table” discussion, we need to be aware of it and mindful as we move forward

5. LV Terminals. We need to address some of the interchangeability discussion. We need to make sure that this standard follows what is being addressed in C57.19.02 i.e. tank hole and stud sizes, etc.

6. There are some things in the document that may need to be rearranged and placed in different clauses., eg, lifting lugs & support Lugs. Are they tank features or accessories?

7. Should we consider adding the requirement for coastal application?

8. The Chair asked for any other agenda items for the next revision. None were brought forward. The Chair suggested if something comes to mind send him an email;

At the Pittsburgh meeting we will review the outline of items for the next draft and prepare the title, scope and purpose for a new PAR. Present wording below:

Title

IEEE Standard for Overhead-Type Distribution Transformers 500kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below

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1.1 Scope

This standard covers certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60-Hz, liquid-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below and low voltages 7970/13 800Y V and below.

1.2 Purpose

This standard is intended for use as a basis for determining the performance, interchangeability, and safety of overhead-type distribution transformers and to assist in the proper selection of this equipment.

The next meeting will be in March 2018 in Pittsburgh, PA.

The Meeting was adjourned 11:31

Submitted by: Ed Smith

IEEE C57.12.28, .29, .30, .31 & C57.12.32 – Enclosure Integrity – Dan Mulkey

Dan Mulkey presented the following minutes from the working group meeting on October 31, 2017 at 8:00 a.m. in with 54 in attendance.

1. Dan Mulkey called the meeting to order at 8:01 AM.

2. Introductions were performed.

3. Membership changes were noted.

The following six guests were added to membership:

• John Crotty

• Dwight Parkinson

• Igor Simonov

• Travis Spoone

• John Vartanian

• Lee Welch

The following members were removed from membership:

• Michael Faulkenberry

• Michael Miller

• Richard Smith

• Christopher Sullivan

4. Quorum was verified. The working group consisted of 44 members, requiring 22 for quorum. 22 members were confirmed at the time of counting. 27 members were confirmed afterwards through the roster.

5. Dan Mulkey made the call for any opposition to unanimous approval of the minutes. No opposition was raised so the minutes were unanimously approved.

6. Dan Mulkey made a call for essential patent statements and responses. None were brought forth.

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7. Dan Mulkey made the call for any opposition to unanimous approval of the agenda. No opposition was raised so the agenda was unanimously approved.

8. Status of Standards:

a. C57.12.28 Standard for Pad-Mounted Equipment – Enclosure Integrity, Published July15, 2014, Revision Due: 12/31/2024

b. C57.12.29 Standard for Pad-Mounted Equipment – Enclosure Integrity for Coastal Environments, Published August 8, 2014, Revision Due date 12/31/2024

c. C57.12.31 Standard for Pole Mounted Equipment – Enclosure Integrity, Published September 20, 2010, Revision Due: 6/17/2020, Corrigenda approved May16, 2014

d. C57.12.32 Standard for Submersible Equipment – Enclosure Integrity, Reaffirmed 3/7/2008, Revision Due: 12/31/2018, PAR expiration: 12/31/2019

9. Old Business:

a. QUV presentation

Scott Abbott presented the final results from the QUV test that had been run by PPG and Sherwin-Williams. The purpose of the test was to understand QUV tests and determine if one could be used to replace the existing FS-40 bulb test. Both QUV-A and QUV-B bulbs were tested.

The QUV-B test, using a UVB-313EL bulb, is a very aggressive test which can cause degradation and loss of gloss that doesn’t necessarily correlate to natural weathering according to Florida testing. This aggressiveness is due to the spectral distribution of QUV-B.

The QUV-A test, using a UVA-340 bulb, is a suitable test to weed out poor performing systems, if the test is performed correctly. The spectral distribution of QUV-A better matches daylight and has a better correlation to outdoor performance.

Based on the test results, Scott provided a proposed pass / fail requirement for both the QUV-A and QUV-B bulbs. For QUV-A, he proposed requiring either >70% gloss retention at 1000 hours or >50% gloss retention at 1500 hours for a passing result. For QUV-B he proposed >50% gloss retention at 500 hours for a passing result.

Scott mentioned that the QUV-A bulb is not currently used for preparing samples for SCAB testing and recommended proceeding with the QUV-B test as they have experience using this to prepare samples for SCAB testing.

A motion was made by Alan Wilks and seconded by Ed Smith to accept the wording in section 4.4.6 as proposed in the draft standard 2.3 which includes the use of the UVB-313EL bulb. A brief discussion followed where it was indicated that various ASTM tests are performed to test various parameters of the coatings. The motion passed unanimously.

10. New Business:

a. Section 4.4.3 – Soak Test

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Carlos Gaytan gave a presentation reviewing the soak test requirement in section 4.4.3 and his investigation into the comment made by RODE regarding Harrison’s solution that is used in the soak test. He reviewed standard C37.100.1, C37.60 and C37.74 as part of the review.

The investigation reached the following conclusions:

1. The findings are that these standards do not specify a corrosion evaluation by means of a soak test or a soaking solution to be used other than Harrison’s

2. The format in Annex C of C37.100.1, referenced in the comment, applies to pollutants in air, to define minimum creepage distance of glass and ceramic insulators

3. The standards under the RODE scope do not include a soak test requirement

4. The current requirements in C57.12.32 are not lacking in scope for evaluation of submersible equipment

5. Based on this, it can be concluded that the RODE comment does not provide a specific proposed change, and any further consideration would require additional work to establish concrete definition to be evaluated by the WG C57.12.32, possibly including resistance to solvents present in urban runoff

Carlos also discovered a typo in the definition of Harrison’s solution. The ratio between ammonium sulfate and sodium chloride had been stated as 3.5 to 0.05 instead of 3.5 to 0.5. Checking with other references, he confirmed the 3.5 to 0.5 ratio is correct.

A motion was made by Alan Wilks and seconded by Ron Stahara to accept the change to section 4.4.3 Soak Test as proposed in Draft Standard 2.3 which included the corrected definition of Harrison’s solution. The motion passed unanimously.

An action was given to Jeremy Van Horn to review the remainder of the document for other incorrect references to Harrison’s solution.

Patrick Ho asked if there was a hydrocarbon test that could be implemented into the standard in the future. It was suggested that this be considered for a future version of the document.

b. Annex B – SCAB test

Dan Mulkey mentioned that the same wording for QUV testing is used in Annex B for the set-up of the SCAB testing. Some experience is needed before this can be changed from a UV-B to a UV-A bulb.

c. Section 4.4.7 – SCAB test

There was a prolonged discussion regarding the SCAB test. Dan Mulkey summarized that the only change to the proposed wording is to include the two bulbs available for this test.

Dan Mulkey mentioned it is the only accelerated test where the failures actually look like failed equipment that comes back to the shop. Rebecca Giang mentioned this is the hardest test for a coating to pass.

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Justin Minikel suggested that the 2005 and 2008 revisions of ASTM1654 are significantly different. It is easier for a system to pass the 2008 standard than the 2005 standard. The biggest difference between the revisions is the inspection criteria. The 2008 standard only looks at discoloration from rust, but does not consider delamination, blistering, loss of adhesion, etc.

It was noted that certified labs may only have access to the latest version of the standard or equipment that can only test to the latest version of the standard and suggested that the most recent version should be referenced. It was also noted that the date needs to be included in the reference if a specific version of the standard is to be referenced. It was mentioned that the ASTM standard is believed to be updated or reviewed every 5 years.

An action was given to Justin Minikel to prepare a sentence proposal for section 4.4.7 to include blisters and loss of adhesion.

d. Section 4.4.8 – Abrasion Test

Dan summarized that the proposed change is to add the first sentence in line 538 of the draft standard. It was discussed that it should not state “red” rust because not all rust is red, for example in the case of zinc or galvanized. It was also suggested that the word “substrate” should be used instead of “metal” since the substrate may not necessarily be metal.

A motion was made by Alan Wilks and seconded by Ron Stahara to change the multiple instances in the document where the evaluation criteria is listed as “no visible red rust” to “no visible rust” and where it states “no bare metal” to “no bare substrate”. The motion was unanimously approved.

It was suggested by Rebecca Giang that the thickness of the coating should be stated. Alan Wilks mentioned that the current specification is to run the test at the minimum coating thickness. It was clarified that the thickness refers to the thickness of the total coating system.

Patrick Ho suggested that the term “rust” be defined in the document, or replaced with the term “corrosion”.

Justin Minikel suggested that language be added to explain the intent of the test.

e. Section 4.4.9 – Gravelometer test

Dan Mulkey clarified that the purpose of the test is for when the transformer is sitting in the utility yard, not necessarily when it is in its service life.

Alan Wilks suggested that the pass / fail criteria is too subjective, but it is difficult to find another way to do it. Rebecca Giang agreed that it is subjective and that it is an easier test to pass than the version in C57.12.29.

An action was given to Jeremy Van Horn to check the C57.12.29 standard and ensure the language is consistent between the documents.

It was noted that the word “mini-mum” in line 553 doesn’t need a hyphen.

11. Next meeting—MAR 27, 2018 in Pittsburgh, PA, USA

Copies of the two reports will be posted to the website along with these minutes.

Submitted by: Jeremy Van Horn

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IEEE C57.12.34 – Three Phase Pad-Mount Transformers – Ron Stahara

Ron Stahara presented the following minutes from the working group meeting on October 30, 2017 at 3:15 p.m. with 77 in attendance.

Ron Stahara called the meeting to order and introductions were made. The rosters were circulated. The names of those in attendance are recorded in the AM system. To establish a quorum, a members list was displayed on the screen and those who saw their names were asked to hold up their hand. From this count of hands, it was determined that a quorum was established. The Patent Slide statement calling for Essential Patent Claims was read and no new patents were brought up. The agenda was presented and the group approved the agenda unanimously. The Spring 2017 Minutes were presented, and the group approved the minutes unanimously.

Task force reports were given on the following items.

• Figure Review - Gary King, Task Force Chair

As Gary and his team combed through these, they found a number of inconsistences, as well as editorial, and technical errors. Gary’s team supplied these corrections and changes to Steve Shull who attempted to make the corrections in the document. These were illustrated for the group in the PowerPoint presentation. Steve got most of these correct but was shown by Gary King a couple items which were incorrect. Steve made note of these items and committed to include them in the next revision.

• Existing Standards - Dan Mulkey, Task Force Chair

Israel Barrientos was tasked last time to review the ASME B30.9 and IEEE C57.12.90 for any changes that would need to be included in the new document. He reviewed these and found that even though there had been a definition change for the Angle of Loading in the B30.9, it didn’t affect our document. This was further explained that we reference lifting which defines the angle in the vertical plane. This was important in that there is also an Angle of Loading in the horizontal plan. In reviewing C57.12.90-2010, he found that the Table 4 in the old document had moved to the Table 3 in the 2015 document. He shared a number of places that this had to be changed in the new revision of this document. Although this next item was not in what he was tasked to do, he did discover that in C57.12.00-2010, Table 15 of this document had moved to Table 12 in the 2015 document. All of these corrections will be included in the next draft.

• Informative Annex – Steve Shull Steve Shull presented a new version of the annex. This is still a work in process and a number of items were noted to add and adjust. It was also pointed out that the items that are now included in the standard should remain in the standard. The key is that if the item is needed for health and safety, it should remain as it is now referenced in the current standard.

The chair asked that Steve Shull would complete these items and provide a new version to be review in the Spring 2018 meeting.

With this, the meeting was adjourned, Stephen Shull recording.

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IEEE C57.12.36 – Distribution Substation Transformers – Jerry Murphy

This working group did not meet. Carlos Gaytan provided the following update to the subcommittee:

The working group did not meet in Louisville. The results of the second recirculation ballot were satisfactory; all but four negative comments were resolved and of those only two were not accepted by the commenter. Draft 6 was approved by RevCom at the June 2017 meeting, and the document was published in August.

IEEE C57.12.38 – Single-Phase Pad-Mounted Transformers – Ali Ghafourian

Ali Ghafourian presented the following minutes from the working group meeting on October 30, 2017 at 1:45 p.m. with 65 in attendance.

The meeting was called to order at 1:45 p.m. by Ali Ghafourian.

A call for essential patents was made as required using the statement provided in the general session. No essential patents were brought forward.

A quorum was established with 23 of 37 working group members present.

The agenda for the meeting was presented and unanimously approved.

The minutes of the Spring 2017 meeting in New Orleans have been posted on the website since shortly after that meeting for the working group members to review. There were no suggested changes to the meeting minutes, and the meeting minutes were unanimously approved.

The Chair informed the working group members the PAR has been approved and expires in December 2021. The most recent standard was published in August 2014, and the next revision is due in December 2024.

The Chair briefly reviewed revisions to the current draft, D1.2, previously approved by the Working Group:

• A new table (Table 5) was added to the standard with minimum percent impedance values to align with a similar table in C57.12.20.

• The column in Table 2 containing minimum electrical clearances for phase-to-non-hygroscopic insulating barrier was corrected and revised to align with C57.12.34.

• Table 4 regarding electrical characteristics for transformers with dual voltage ratings was added back to the standard. Previously, there was discussion as to the reason this table was removed from the standard. It was suggested the table may have been removed because of confusion regarding the proper fuse rating when the transformer is shipped by the manufacturer.

Giuseppe Termini presented the results of the responses from 20 end-users/utilities to the transformer accessories survey issued by the Task Force comprised of Wes Suddarth, Craig DeRouen, and Giuseppe Termini. The responses showed transformer accessory requirements varied significantly among the respondents. However, certain transformer accessories were almost unanimous requirements among the 20 respondents including some type of internal fuses.

Steve Shull recommended the transformer accessories function and purpose be listed in an informative annex.

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Donnie Trivitt offered a motion with a second from Kent Miller that any transformer accessories included in the Task Force survey not already described in the standard be listed and described in an informative annex. This motion passed with unanimous consent.

Tom Callsen offered a suggestion that a similar transformer accessories survey be issued to manufacturers to obtain more information on which accessories are more commonly specified in the industry.

The Task Force comprised of Wes Suddarth, Craig DeRouen, and Giuseppe Termini will issue a survey to a number of manufacturers collecting information on the percentage of transformers shipped with particular accessories gaining more insight to which accessories are more commonly specified in the industry.

The Chair requested volunteers to review the existing Figures in the standard and provide recommendations to increase the clarity. A Task Force comprised of Israel Barrientos, Jim Spaulding, and Mike Thibault agreed to review the existing Figures and make recommendations.

The Chair adjourned the meeting at approximately 2:45 pm.

Submitted by: Martin Rave

IEEE C57.12.39 – Tank Pressure Coordination – Carlos Gaytan

This working group did not meet. Carlos provided the following update to the subcommittee:

The working group did not meet in Louisville. The results of the recirculation ballot were satisfactory; all negative comments were resolved, and the document will be reviewed by RevCom for its meeting on December 5, 2017.

The plan is for the WG to meet in the Spring 2018 meeting in Pittsburgh, to continue the work on the list of items identified during the balloting process, and on which the WG decided to address on a future revision of the standard.

IEEE Task Force on Transformer Efficiency and Loss Evaluation – Phil Hopkinson

Phil informed the subcommittee that his company HVOLT inc had submitted comments in response to DOE’s questionnaire. The recommendation was for DOE to consider multiple per-unit loads to determine efficiency requirements. HVOLT made this recommendation due to the short time window that was made available for commenting. The Task Force is still looking for more loading data from utilities, this data will help with both DOE comments and future loading guides. Phil presented the following minutes from the task force meeting on October 30, 2017 at 9:30 a.m. with 122 in attendance.

Phil Hopkinson welcomed the members to the meeting.

This was the third meeting of the task force. The minutes of the last meeting were uploaded to the IEEE Transformer Committee Website. Members were reminded of the essential patent requirements of the transformer committee, although as a task force this group will not be submitting any PARs.

There were no additional items for the agenda. So the agenda was approved by the body.

Background

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The DOE Energy Efficiency rules will be due for renewal or revision by January 1, 2022. The current loading is estimated at 50% of nameplate rating load for medium voltage transformers and 39% for low voltage transformers. There is a need for real data to replace these estimates. The quality and availability of data have benefited from the expanding use of smart meters. Utilities should be capable of providing data on transformer loading broken down into load types, geographic locations and other useful categories.

Old Business

a. Update on Transformer loading data studies At the last meeting, members reviewed the loading data from PG&E. The following utilities have provided or promised to provide loading data.

i. PG&E

ii. SCE

iii. PECO

iv. AEP

v. DUKE

b. Review of format of data submission Some steps in combining the data into a single database include:

i. Establish compatible EXCEL Data file for data reporting

ii. Use real time data acquisition for key locations

iii. Use neutral clearing house (EEI) for gathering data and maintaining neutrality.

iv. Annual load cycles gathered by rate class and logged over full 8760 hourly period/yr.

v. Steve Rosenstock of EEI has offered assistance in compiling the data

c. Steve Rosenstock of EEI observations:

i. Table 1 of the PG&E report makes a nice template for a “first cut” of information gathering and identified as Tier 1.

ii. Tier 2 could be more detailed data on sub-categories of residential / commercial / industrial as shown on your slides.

iii. Tier 3 is the most detailed data of sub categories based on geographic location or other key operational variables (such as trending data, if available).

d. PG& E Perspective Conclusions:

i. Load cycles by hourly data logging should be accurate.

ii. Load cycles by rate class capture daily, monthly, and annual load ranges.

iii. Load factors can be calculated by day, month and year vs. Load Cycles.

iv. RMS-equivalent easily obtained from hourly data but Load Factor OK.

v. Transformer nameplate kVA is less than peak capability based on modelling

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2. New Business

a. DOE Questions – (Docket #EERE-2017-BT-TP-0055) Phil Hopkinson reported that DOE issued Docket #EERE-2017-BT-TP-0055. The notification stated: The U.S. Department of Energy (‘‘DOE’’) is initiating a data collection process through this RFI to consider whether to amend DOE’s test procedure for distribution transformers. The responses to these questions were due by Nov 6, 2017. Because of this quick response time, Phil Hopkinson reviewed the 15 questions asked by DOE and gave examples of how one might respond to these as he shared his submitting response based on the data collected from the activities of this task force. This review was posted on the transformer committee website. He encouraged others to respond to this RFI even though the date for submittal was quickly approaching.

3. Assignments for Next Meeting The next meeting will review any feedback from the DOE Questions and further collection of data from the loading study.

4. Adjourn – The meeting was adjourned at 10.45 am

Submitted by: Phil Hopkinson

C.3 Old Business

• Steve Shull commented on the development of C57.19.00 and C57.19.02 and asked for more participation in the working groups for both standards.

C.4 New Business

• Dan Mulkey brought up an issue with the meeting conflict between the Task Force on Transformer Efficiency and Loss Evaluation (DOE Activity Task Force) and the Working Group Meeting for C57.12.24. He requested rescheduling one of these meeting to eliminate the conflict.

• Phil Hopkinson brought up the PAR for C57.142 to investigate recommending changes to transformer testing to more adequately measure how robust the transformer is. This investigation is being done because it is believed that current test levels are not as severe as what modern transformers are exposed to in the field. One proposed test would be the standard impulse with non-impulsed terminals floating as it is believed this causes more stress on the coil. Steve Shull noted that distributed generation is causing various issues with transformers (inverters, IGBT’s, etc). Phil then commented on inverters causing 3 kHz spikes and issues with power quality and that one direction might be to recommend electrostatic shields.

• Garry Hoffman commented on DER causing issues with small transformers and requested the authority to form a task force to review the need to develop a PAR to study or develop a guide for distribution transformer monitoring. This motion was made by Garry and seconded by Mike Tebow.

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o Discussion: Phil H. asked how do you make that happen? Garry replied that you need to show people how to monitor and interpret pressures, harmonics, and temperatures.

Gary volunteered to chair this task force. Vote was made with no opposition, unanimous approval.

• Aniruddha Narawane asked if we needed to review the definition of a padmount transformer due to solar units and their application. Steve Shull stated that this comment would need to be made during the working group meeting for these products.

• Dave Brender mentioned that NEC revision was beginning and that they were looking for volunteers to represent IEEE during the revision.

C.5 Chairman’s Closing Remarks and Announcements

Steve had no closing comments to the SC except to see them in Pittsburgh for the 100-year anniversary meeting in spring of 2018.

C.6 Adjournment

Steve adjourned the meeting as provided in the meeting agenda at 10:15am.

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Annex D Dry Type Transformers Subcommittee

November 1, 2017

Louisville, Kentucky USA

Chair: Charles Johnson

Vice-Chair: Casey Ballard

Secretary: David Stankes

D.1 Introductions and Approval of Agenda and Minutes

The Subcommittee met on November 1, 2017 at 1:30PM in the Marriott 7-9 room of the Louisville Downtown Marriott Hotel.

The meeting was convened with 35 people in attendance. 19 of the 26 members of the Dry Type Subcommittee were present, so quorum was reached. Three guests requested membership, with one of the three meeting eligibility requirements. The attendance roster will be kept in the AMS.

The Chairman reviewed the proposed Agenda. A motion to approve the agenda was made by Tim Felix-May and seconded by Mike Iman. The agenda was approved unanimously.

The chairman noted that the unapproved minutes from spring 2017 SC meeting had been posted on the SC Transformer Committee website. A motion to approve the minutes was made by Sanjib Som and seconded by Tim Felix-May. The minutes were approved unanimously.

D.2 Chairs Remarks

None.

D.3 Working Group/Task Force Reports

The next order of business was the presentation of the reports of the various working groups and task forces. See the following sections for the individual reports:

D.3.1 Revision of IEEE PC57.12.01 - Dry Type General Requirements Chair Casey Ballard

The working group met in the Kentucky F Room of the Downtown Marriott Hotel.

The meeting was called to order at 1:45 PM by Chairman Casey Ballard.

Chairman made opening comments.

Introductions were made by all participants. WG Roster has been distributed and signed.

The meeting was convened with 37 participants, 16 of them are members. Quorum was reached (22 current members). The attendance was reported in the AMS.

The Agenda was approved unanimously being no negative votes.

The Minutes of Spring 2017 New Orleans meeting was approved unanimously.

The chair made a call for known patent issues. No patent related issues were claimed.

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Old business

Chair informed on the revisions that have been incorporated into Draft 3:

• Maximum system voltage update in Table 5 to match C57.12.00. The following issues were discussed: typical + 5% HV winding tap range sometimes resulted in the highest tap voltage to be higher than maximum proposed voltage. Several proposals were made: D. Walker proposed a note that the maximum voltage corresponds to the nominal tap voltage; J. Tedesco proposed to eliminate nominal voltage column (this wasn’t supported as BIL is based on the nominal voltage). Chair proposed to increase the max voltages as follows: 27 kV for 25 kV nominal, 37 kV for 34.5 kV nominal, 49 kV for 46 kV nominal. 11 participants supported the proposal with several opposed and the rest abstained. The proposal accepted and will be included in the next version of the revision.

• Short Circuit thermal calculation methods – added IEC and kept IEEE with both options allowed. R. Marek noted that IEC is working on the revision of the document and, apparently, they are going to correct sc thermal calculation algorithm. Rick will provide more information when available and WG will consider a course of actions at that point. C. Johnson mentioned that we need to keep a reference to a dated IEC standard as it will be revised in the future as well.

- Other topics, volunteer reports and discussion:

• Short Circuit thermal limits for insulation relating to insulation temperature rating – Rick Marek proposal: Rick explained his proposal, but admitted that the original information that established the data in the proposed revision of Table 15 is unknown. S. Levin commented that it’s difficult to see how one can correlate the final conductor temperatures with the insulation temperature class. S. Chiang mentioned that UL 845 has similar data. C. Johnson commented that the final sc temperature depends on the thermal condition before sc. D. Stankes volunteered to prepare an alternative proposal to address this issue.

• Cooling ratings: compared to both C57.12.00 / IEC 60076-11 nomenclature. Chair presented and WG reviewed 2 proposals by Dhiru Patel and Tim-Felix Mai (based on new unpublished IEC revision). C. Johnson pointed that a ventilated transformer can be without any enclosure. C57.12.01 specifically defines the need of enclosure only for outdoor installation. Chair conducted a vote for both Dhiru and Tim-Felix proposals (that are both a significant improvements compared to current C57.12.01 definition), majority supported Tim-Felix proposal that will be included in the next version of the revision.

• Higher 15 kV class standard BIL rating of 60/70/95 kV in Table 5. Results of the official survey: 55.6% of responses wanted changes (11.1% abstained). 50 % of responses didn’t want 95 kV BIL to be a standard level for 15 kV class voltage (22.2% abstained). Also 50% of respondents didn’t agree to add 75 kV BIL as a standard test level). Because there was no majority on any of the proposed options, the issue of the BIL test levels in Table 5 will be tabled for the current revision of the standard.

New Business

- Environmental testing requirements such as in IEC-600076:

Climatic/Thermal shock: Casey explained the current IEC test. The question was whether we are doing something similar during the qualification tests of the coil design. The answer was that these

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are different tests and R. Wicks noticed that the cold shock test is specified only for cast resin models in the qualification test. Only 4 participants thought we need to include thermal shock test in IEEE document.

• Environmental / Applied voltage while wet: Casey explained the current IEC procedures. C. Johnson mentioned that both cold climate and environmental issues are addressed with auxiliary heating of transformers and it’s also considered in the maintenance guides, but there are no special tests. After poll, WG didn’t support a consideration of climatic and environmental tests in the current revision of IEEE C57.12.01.

- On-load tap changers: topic was raised by T-F. Mai as the application and test of on-load tap changers in dry-type transformers aren’t addressed in the standards. C. Johnson commented that these accessories are used in a small percentage of transformers that don’t represent the major industry practices. D. Walker would like to see some guidance as he sees more of such designs now. Poll shows that WG doesn’t support the consideration of this topic in the current revision of the standard.

- R. Marek commented that IEEE C57.12.80 on definitions is currently under revision and definitions of IEEE C57.12.01 will be conflicting with this upcoming revision and they shall be revised. Rick doesn’t mind to be a liaison to C57.12.80 and will make this proposal at the Dry-Type SC meeting on Wednesday.

- R. Wicks questioned the inclusion of voltages less than 601 V in Table 5 as the scope of IEEE C57.12.01 is limited to the transformers with highest voltages more or equal to 601 V. Casey explained that LV voltages are meant to be included in Table 5 as well, not only highest voltage. C. Johnson commented that oil-immersed transformers don’t deal with anything lower that 1.2 kV and test voltages for all systems below 1.2 kV are the same as for the 1.2 kV system. Chair invited submitting proposals on this issue for the discussion during the next WG meeting.

Next meeting: Spring 2018, Pittsburg, PA, March 25-29, 2018.

With no further business, the meeting was adjourned at 3 PM.

Chairman: Casey Ballard

Secretary: Sasha Levin

D.3.2 Revision of IEEE PC57.12.60 - Dry Type Thermal Aging Chair Roger Wicks

The meeting was called to order at 1:45 PM by Chairman Roger Wicks. Introductions were made and attendance sheet was circulated.

The meeting was convened with 45 people in attendance. 32 guests / 13 members present. Quorum was reached. Five guests requested membership.

The Chairman reviewed the proposed Agenda. The agenda was approved unanimously.

The minutes from spring 2017 WG meeting were approved unanimously.

The chairman asked if there were any essential patent issues relevant to this standard. None were noted.

Discussion of IEC 61857-41 Work since our last meeting in New Orleans

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The chairman described that since our last working group meeting, an IEC 61857-41 CD had been issued, and a subsequent CD2 is in final stages of completion. The CD2 is expected to be circulated within IEC in November. He suggested that IEEE C57.12.60 WG consider adopting some of the information that will be found in the new IEC document, but that care must be taken not to bring anything in before it is clear it will be accepted in the IEC document. The following topics were reviewed by WG Chair:

Changes from CD to CD2

o CD2 allows for multiple winding styles

o Improved flow, with more logical progression of information

o Inclusion of impulse test as one of the diagnostic tests

o Inclusion of a screening test

o Inclusion of detailed aging examples to make it easier for new users to design and run test

Areas of “improvement” from IEEE C57.12.60

o Aging temperature table

o More realistic (lower) temperatures

o Screening tests

o One screening test to determine if candidate EIS is capable of achieving desired temperature class

o A second screening test to identify electrical test failure threshold on unaged units that would be used to determine test voltage used in test. This new way to determine test voltage was described as being needed as current test voltage based on rating of transformer has resulted in VERY long test times to failure. Chuck Johnson asked what halving constant was used to develop cycle times in the new aging temperature table. He recommended the need for some guidance regarding how aging cycles could/should be changed based upon failure rate. Chairman thought that this information was included in new CD2.

o September meeting in Delft and Development of CD2

o Chairman pointed out that many of the people involved in the development of IEC 61857-41 were also part of the IEEE C57.12.60 WG.

o Chairman described his work with Ed VanVooren from Eltek to develop section that would help users interpret test data as test is running. This analysis would help determine how to adjust test (i.e adjusted cycle time or addition of new temperature point) if r2 of life curve was unacceptable. Alexander Levin asked what would happen if test was run and resulting data did not achieve required r2. Chuck Johnson questioned the use of only three test coils per temperature, as a failure due to manufacturer defect on one coil would severely impact the data. Joe Tedesco mentioned that there was a report discussed at the IEC meeting that demonstrated how number of test samples could impact test data. The WG Chair explained the option of adding more test coils, as IEC test standard only specifies a minimum of three test coils. Chairman brought up the possibility that an acceptable r2 could be obtained with less than 5000 hours for low temperature point.

Chairman described that IEC is planning to develop a test standard that would describe method of making substitutions to an EIS. This would be developed after IEC 61857-41 was completed, so

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most likely this information we would not be included in this IEEE C57.12.60 revision. Chairman raised the possibility of adding information regarding substitutions in the IEEE Annex.

Casey Ballard questioned what type of impulse test is listed in IEC document. (Positive Wave Form), as he thought this may impact results of test.

Review of action items:

Chairman will circulate to the members of the working group the new IEC CD2 as soon as it is publically released. He will also circulate presentation used during this WG meeting.

With no further items to discuss, Chair asked for motion to adjourn.

Rob Ghosh motioned to adjourn and Chuck Johnson seconded.

Meeting was concluded at 3:00PM.

It was confirmed that the WG would meet again at the spring 2018 Transformer Committee Meeting in Pittsburgh.

Chair: Roger Wicks

Co-Chair: Dave Stankes

D.3.3 Revision of IEEE PC57.12.58 - Dry Type Transient Analysis Chair Roger Wicks

The WG did not meet IN Louisville as the document was complete and ready for publication. Members of the Dry-type SC will receive a copy of the new document when released.

D.3.4 Revision of C57.12.51 – Ventilated Dry-Type Power Transformers – Chair Sanjib Som

The working group met in the Kentucky F Room of the Downtown Marriott Hotel on 10/30/17.

The meeting was called to order at 11:00 AM by Chairman Sanjib Som.

Chairman made opening comments including that we only have 1 more year before the PAR expires.

Introductions were made by all participants. WG Roster were distributed and signed. The meeting was convened with 23 participants, 6 of them are members. No quorum was reached (13 current members). Three members requested membership.

The Agenda were agreed upon, but not approved since there was no quorum.

The Minutes of Spring 2017 New Orleans meeting were not approved since there was no quorum.

The chair made a call for known patent issues. No patent related issues were claimed.

Old business

- No old business

New Business

- Review of comments submitted by WG members for Draft 1:

• The comments were discussed by the submitter, but many of them were addressing the same issues. Therefore, they will be reported in the minutes correlating to the flow of the draft document

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• Title and Scope: Several comments regarding changing the wording of the PAR were proposed, but not supported since the PAR was just recently resubmitted with full support of the membership.

• Section 2 – Normative references were reviewed and a decision was taken not to add C57.12.91 as it was not present in the text of the document. It is, however included in the Biblography.

• Section 5.1 – kVA ratings: All kVA ratings were removed from this section since they are already covered in C57.12.01

• Section 5.2 – Voltage ratings: All voltage ratings were removed from this section, including Table 1 and Table 2, since they are already covered in C57.12.01

• Section 5.5 – Angular displacement – it was decided that the wording of this section would reference C57.12.01 for angular displacement of three phase and polarity for single phase

• Section 5.6 – Impedance – Table 3 was deleted as the group agreed the values did not reflect current industry practice.

• Section 6.6 – Lifting, Jacking, and Moving – Figure number referenced in the text was incorrect and was updated

• Section 6.7 – Ground Pads – All dimensional and location requirements were removed as they were inconsistent and did not necessarily reflect current industry practice.

• Section 6.8 – Enclosure – corrected the reference standard to be C57.12.55.

• Section 9.1 – Forced Air Ratings – section was removed along with Table 6 as its already covered in C57.12.01

• Section 9.6 – Y-Y Connected Transformers – Table 7 and all references were removed

• Section 10.7 – Future Forced Air Cooling – AN designation was removed.

• General – review all standard references that include the year to confirm if it truly needs to point to a specific publication, or simply the latest version (preferred).

- Draft 2:

• The Chair will incorporate all of the changes and resubmit to the WG a draft 2 document.

• WG members will be requested vote via email (prior to Pittsburgh) to determine if the document is ready to be sent to the Dry-Type Sub Committee for balloting.

Next meeting: Spring 2018, Pittsburg, PA, March 25-29, 2018.

With no further business, the meeting was adjourned at 12:15 PM.

Chairman: Sanjib Som

(Acting) Secretary: Casey Ballard

D.3.5 Revision of IEEE PC57.12.91 - Standard Test Code Chair Derek Foster

Vice Chair David Walker presented minutes from meeting

The Working Group met in the Marriott 1-3 meeting room on 10/31/17. The meeting was called to order at 4:45 PM.

There were 21 people present. 10 out of 19 members and 11 guests were present. A quorum was present.

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The patent call was given. No one replied with any patent issues.

The agenda was approved unanimously.

The minutes of the April 2017 meeting in New Orleans were unanimously approved with a change in the title.

Old Business

• David Walker showed the scope of work for the WG and remembered that there were 4 meeting left to make changes. He also showed the ‘work to do’

o Review C12.12.91 with the new scope in mind o Add missing content o Delete Obsolete Material o Correct Errors o Clarify Language o Potentially Synchronize with C57.12.90 and IEC

• David Walker will update the draft and include already made decisions (smaller revisions). It will be distributed before the next meeting.

• Adding climatic and environmental classes were rejected by WG C57.12.01. No further actions for this group.

• Joseph Tedesco asked if it would be possible to survey changed sections if they’re ok or not • The group discussed about PD and sound level tests. In C57.12.90 made a lot of changes to

sound level testing. Joseph Tedesco and Tim-Felix Mai volunteered to present changes in the latest IEEE and IEC documents in the next meeting.

• Chuck Johnson started a discussion about how BIL tests should be performed for transformer installed in higher altitudes. How could the air / distances and not the inner insulation be tested?

• David Walker proposed to change 11.5 Hot-resistance Measurement o Current Wording:”The ultimate temperature rise is considered to be reached when the

surface temperature rises over ambient become constant” o Proposed: “The ultimate temperature rise is considered to be reached when the

temperature rises over ambient of all surface temperature measurements required in Section 11.3 become stable, which is defined as….”

o Reason: Clarifies that all sensors readings must be constant. Not just windings.

Casey Ballard made a motion, seconded by Carl Bush, to adopt these changes. The motion passed.

• David Walker started a discussion about how to account for no-load temperature rise in section 11.8. The discussion focused on Section 11.8.5 Empirical Additive Factor- Additive factor from previous tests on similar units. The issue was that some manufacturers use equation 26 with empirical or calculated values. This results in smaller total rises than using additive value. The question was:

o Is this method acceptable? o What methods are acceptable? o How must empirical/calculated values be obtained/justified? o Should ordering of sections be changed and language added to clarify which methods

require separate consideration of NL rises and which don’t

David Walker agreed to present a proposal in the next meeting how this section could be reworded to be clearer.

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New Business:

• None

With no further business, the meeting was adjourned, without objection, at 5:45 PM.

The Working Group will meet again at the Spring 2018 meeting in Pittsburgh, Pennsylvania.

Chairman: Derek Foster

Vice Chairman: David Walker (acting as Chairman)

Secretary: Tim-Felix Mai

D.3.6 IEEE PC57.16 – Dry Type Reactors Chair Art Del Rio

The working group for the revision of C57.16 met in the Kentucky F room of the Downtown Marriot Hotel on Monday October 30, 2017, at 4:45 PM.

1. Introductions and Call for Patents

The meeting was called to order at 4:45 PM by the WG Chair Art Del Rio. The meeting was opened with the introduction of participants. The WG Chair Art Del Rio did a call for potentially essential patents. None was reported.

2. Circulation of Rosters

The attendance rosters were circulated.

3. Verification of Quorum

There were a total of 21 participants: 8 Members and 13 Guests out of which 3 Guest requested membership. 2 were granted.

8 of the current 11 WG Members were present and quorum to carry out business was met. The meeting agenda, which was circulated by email among members and guests on September 29,

2017, was presented to the participants. There were no objections or comments and the agenda was approved unanimously.

4. Approval of the minutes of the April 3, 2017, meeting in New Orleans,

Louisiana.

The minutes from the S17 meeting in New Orleans, which were circulated on September 29, 2017 by email, were presented to the participants.

There were no objections or comments and the minutes were approved unanimously.

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5. Continue to discuss and review of the scope, purpose.

The WG Chair Art Del Rio has got feedback from IEEE SA. It is acceptable to have both normative and informative annexes in the standard.

We need better explanation of the differences between 2-level, 3-level and multi-level converters. Ulf Radbrandt volunteered to make a proposal. This should also be used to distinguish between converter reactors that will be covered by this standard and the converter reactors that will be covered by IEEE 1277. One main distinction is that the reactors in this standard do not see dc current.

We must explain ac side converter reactors better in the Scope. Also we should add a normative annex covering ac side converter reactors for VSC applications.

The text “some restrictions” should be removed from the scope. The text might be transferred to the Purpose.

Most important for the temperature rise test is the rated power frequency current. The seismic acceleration is not enough for seismic verification. A reference to a standard is also

necessary. There is no sense in testing reactors and resistors together. That text can be removed. An excel file is a good tool to control comments and changes. The file with identified comments will

be circulated in the WG. The track changes function and the line numbering function should be activated in the draft. Art Del

Rio will distribute the draft to the WG members.

5.a Comment on Dry-type air-core shunt capacitor reactors. Dave Caverly

References to Technical Report 16 should be added. We should also have a reference to IEEE C37.12. Dave will make a proposal to next meeting. Should we adopt the "new name" - "Transient Limiting Inductors" (LTIs) instead of "Shunt Capacitor

Reactors" or "Damping Reactors" and reflect it in the standard?

5.b Comment on Annex A, Filter reactors. Klaus Pointner

Sound sections should reflect what is written in IEEE C57.12.90 and in IEC 60076-10. Method/procedure how to measure needs to be updated. There should be one general section and one special section according to other lately updated standards.

Christoph Ploetner volunteered to do update the sound sections.

5.c Comment on Annex C, Discharge CLR for series capacitor banks. Mike Sharp

C3.1, last sentence, It says gaps are in parallel with the reactor. Since the gap is in series with the coil we should delete “gaps” from this sentence. It says that the ‘discharge reactor is equipped with a series connected device (spark gap or MOV). Probably this should read ‘discharge resistor is … MOV is never used to electrically connect the resistor to the discharge circuit.

5.d Comment on Scope

See clause 5 above.

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5.e Comment on System considerations, TRV

How reactors can affect TRV of circuit breakers. This is very much due to the reactors stray capacitance.

Ideas to add new information regarding TRV should be carefully discussed with the SWG committee first. Last time we revised this document, we had to remove a lot of TRV text due to negative voting from SWG members.

TRV issues should be handled by the SWG committee. We should only alert the user that there can be TRV issues related to CLR (or TLI) and refer to SWG standards.

Monty K will contact the SWG committee.

5.f Comment on main standard Table 6

Section 9.1, table 6, Note (a) need changes as the application of an arrester across the series reactor may not be applicable to discharge reactor applications.

6. New Business

No new business.

7. Adjournment



Chairman: Art Del Rio ([email protected])

Secretary: Ulf Radbrandt ([email protected])

D.3.7 IEEE PC57.124 – Dry Type Partial Discharge Guide Chair Tom Prevost

The WG met at the Downtown Marriott (Mariott 5) in Louisville, KY on October 31, 2017. Meeting started in Marriott 6 at 8:0 am. There were 41 attendees with 11 WG members present of a total of 21 and the rest were guests. 9 guests requested membership to the WG. We had quorum to conduct the meeting. Essential Patent claims were mentioned. There was no response of an essential patent related to the work of our WG. Agenda for the meeting was approved. Minutes of the New Orleans meeting from Spring 2017 were approved. PAR has been approved and is valid till end of 2021. There were two presentations one by Detlev Gross (IEC60270) and the other by Alex Kraetge (IEC 60076-03 and IEC 60076-11). Salient aspects of both were described by the presenters with a focus that our WG will concentrate on how to perform the test in the User’s Guide? PDF copies of these presentations can be found in the Transformers Committee webpage (www.transformerscommittee.org) under C57.124 in the Dry-Type Subcommittee page.

http://www.transformerscommittee.org/

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Detailed work on the User’s Guide will begin from the next meeting in Pittsburgh. Several TFs will be set up to take a shot in developing the different sections. There was no further New Business. Meeting was adjourned at 9:15 am Respectfully Submitted Hemchandra Shertukde Secretary, C.57.124 D.4 Old Business

D.4.1 Status of Dry Type Transformers Standards • Chairman presented list of active standards and with noted board submission deadlines.

Reminded the SC that this list was available online for review. • PAR Review

o Chair informed group that there are six active documents C57.12.51 PAR expires at the end of 2018, and reinforced that this must be

completed soon. C57.12.60 is proceeding as planned and is making good progress. All other documents have dates out in either 2020 or 2021 and we should have

ample time to complete. Chair reminded SC that the last year of a PAR should set aside for balloting to

allow ample time for ballot review, recirculation, etc. o Chair reminded SC that the Dry-Type SC “owns” approximately 13-14 documents.

There are a limited amount of volunteers to complete the needed works on these documents, and the SC members have an obligation to ballot on these documents as appropriate.

D.5 New Business

D.5.1 Change in WG Chair for C57.12.91

Chairman informed the SC of Derrick Fosters intent to step down as WG Chair for C57.12.91. Chairman highlighted how Derrick had led this very important WG for 14 years, and under Derricks leadership C57.12.91 had become a much clearer and technically correct document. Derrick received a load round of applause from those in attendance in appreciation of his years of service. Chairman also formally introduced David Walker as the new WG Chair of C57.12.91.

D.5.2 IEEE C57.12.80 Terminology

Working group has been formed to revise C57.12.80. Rick Marek is a member of this WG and offered to send results of the WG to Chuck Johnson to ensure that Dry-Type SC is in sync with what is being proposed. Chairman informed SC that there was another IEEE group that was working on a definition of a transformer that would not include the need for a core or windings. Chairman strongly recommended that a definition should take into account the original intent of the word. Chairman asked that anyone interested in participating in the review of definitions contact him

D.6 Adjournment

With no further business, the meeting was adjourned at 2:17 PM.

Chairman: Charles Johnson

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Vice Chairman: Casey Ballard

Secretary: David Stankes

Page 1 of 4

Annex E HVDC Converter Transformers and Smoothing Reactors Subcommittee

October 30, 2017, 3.15 pm Louisville, Kentucky, USA

Chair: Michael Sharp Vice Chair: Les Recksiedler Secretary: Ulf Radbrandt

E.1 Introduction / Attendance

Introductions were made and the attendance list circulated.

There were 11 members and 14 guests present. No new requests for membership were received.

The total membership of the SC is 17. We needed at least a total of 9 members to be present in order to have a quorum. This was achieved.

The agenda for this meeting was approved.

E.2 Approval of the minutes of the April 3, 2017 meeting in New Orleans

The minutes from the New Orleans meeting were approved.

E.3 Brief report on the meeting of the Administrative SC by Mike Sharp

The ballot resolution group created to review ballot comments must always report their results to the working group for approval.

A reminder was given that to become a main committee member you need IEEE, PES and SA membership.

The web page of each SC and WG should regularly be updated.

A new power point template for the 100 years anniversary has been created and it is available for new presentations. The new template should be used for all PowerPoint presentations at the spring meetings in Pittsburgh.

Peter Balma is organizing all special activities for the 100th anniversary meeting. If anyone has any ideas for commemorative gifts or has the desire to help with the tasks please see Peter. Peter is also looking for any pictures of old transformers circa 1918 that he could use.

SC and WG minutes must be submitted to Bruce Forsyth latest December 14 this year.

Reminder that IEEE C57.129 will expire in 2018 and IEEE 1277 will expire in 2020.

E.4 Working Group Reports

E.4.1 WG IEC/IEEE 60076-57-129 – Transformers for HVDC applications

Chair: Ulf Radbrandt (IEEE) and Mats Berglund (IEC), Co-Chairs

Ulf Radbrandt made a presentation regarding the status of the work with the dual logo document. The highlights of that presentation and following discussions are as follows:

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• The background as to why the IEC editorial changes were not reported to the WG and at FDIS stage, when no further changes were possible, has not clearly been explained. Most of the changes, not only editorial, were good though. Paul Jarman explained that this is usually done in relation to the CDV but for some reason this was not done until FDIS. One change that made the document less clear was the removal of the explanation about how to handle single references. This was probably done to have that section more similar to other dual logo standards. We can anyway live with the writing as it is today.

• IEC FDIS were approved, 96.2% in favor

• IEEE Recirculation Ballot #2 (same as FDIS) met the 75% affirmation requirement. The result was, 96% affirmative (2 negative).

• IEC status: Ready to publish on 9 November 2017

• IEEE status: Approval given to publish by RevCom and SA Standards Board

• IEC SMB has published a guide that describes how to work with dual logo standards.

E.4.2 WG IEEE P1277 - Dry-Type and Oil-Immersed Smoothing Reactors and Dry-Type Converter Reactors

Chair: Klaus Pointner ([email protected]) Vice-Chair: - Secretary: Ulf Radbrandt (temporary)

E.4.2.1 Introductions and Call for Patents

This was the second meeting for this WG. It was conducted as part of the HVDC SC meeting.

The WG chair, Klaus Pointner, asked the members if they are aware of any essential patent claims that could affect the work by the WG but nobody expressed any knowledge of such claims.

There were 10 members and 15 guests present. 1 guest requested membership,

The total membership of the SC is 16. We needed at least a total of 8 members to be present in order to have a quorum. This was achieved.

The agenda for this meeting was approved.

The minutes from the New Orleans meeting were approved.

It was decided that we should have separate minutes from this WG.

E.4.2.2 Review of the Draft 1 of the standard.

The title has been updated to “IEEE Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors and for Dry-Type Converter Reactors for DC Power Transmission” according to the PAR.

The Introduction and the Scope are also updated according to the PAR.

There was not a Purpose section in the old standard but that has been introduced now.

References are not updated yet. They should be undated as much as possible.

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Nominal inductance has been described for converter reactors. That should also be described for smoothing reactors.

Converter reactors has been added to the description of rated dc current.

Description of rated ac current has been added for converter reactors.

Converter reactors has been added to the description of rated dc voltage.

Description of rated ac voltage has been added for converter reactors.

Description of harmonic currents has been added for converter reactors. The description of ripple current for smoothing reactors should be changed to explain harmonic currents. This can then be the same for both smoothing reactors and converter reactors.

A description of the location of converter reactors, which are covered by this standard, has been added to the Definitions section. This description should be moved to the Purpose.

An explanation that converter reactors built in dry-type air-core and air-cooled design has been added to the Definitions section. This explanation should be moved to the Purpose.

An explanation, that converter reactors are also often installed indoor under controlled environment, has been added to Clause 6.1.2 “Temperature”. Ambient temperature profile should be stated together with the minimum humidity.

Examples of typical overload requirements can be removed in clause 6.2.3 “Loading at other than rated conditions”, but we should include that the purchaser should specify any overload requirements.

References to building standards have been removed in clause 6.2.4 “Seismic conditions”.

Very fast voltage transients has been removed since the equipment in this standard are never connected to GIS in clause 6.2.5 “Other unusual service conditions”.

Description of cooling classes has been replaced by a reference to IEEE C57.12.00 in clause 7.6 “Cooling classes”.

A new clause 8. “Rating data of converter reactors” has been added. Rated system frequency should also be added.

Design considerations should go to an informative annex.

Measurement of stray capacitance should be added as a special test. Both capacitance across reactor and to earth should be measured.

Temperature limits should be updated according to the latest standards.

Christoph Ploetner volunteered to update the sound sections according to other standards.

E.4.2.3 Plan for the coming work

The chair, Klaus Pointner, will update the draft and distribute Draft 2 after the meeting. The chair will then request comments to that draft.

The document should be finished 2019 since the present standard expires 2020.

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E.4.2.4 New Business

Pierre Riffon commented that the RIV test is not good for dc applications. Pierre will do a proposal for update of this.

The chair, Klaus Pointner, requested help to review and update the annexes.

Annex F, Smoothing reactors for 800 kV ultra high voltage direct current (UHVDC), is straight forward according to the main part of the standard and can therefore be removed.

E.4.2.5. Adjournment

The WG meeting was adjourned and the SC chair, Mike Sharp, took over with the SC meeting.

E.5 Old Business -

E.6 New Business -

E.7 Adjournment

The meeting was adjourned at 4.16 pm.

Unrestricted Page 1 of 7

Annex F Instrument Transformers Subcommittee

Chair: Ross McTaggart

F.1 Introductions

The attendees introduced themselves and reported affiliations.

F.2 Quorum

19 of 34 members were present - quorum attained

19 guests also attended

F.3 Agenda An agenda was displayed for this meeting. No objections to the agenda were raised. A motion to approve was given by Pierre Riffon and was seconded by Randy Mullikin

F.4 Approval of minutes – New Orleans, LA meeting

Motion by David Wallace & seconded by Igor Ziger.

F.5 Status of C57.13 Standards - Ross presented the status of the various standards handled by the ITSC. - A PAR has been submitted for the revision of C57.13.2 approval of the PAR is

expected in December. Thomas Sizemore is the chair this working group. - Pierre Riffon is the chair of the working group revising C57.13.5 currently. - Ross McTaggart indicated that the work on C57.13.7 covering milli-ampere CTs

was in the balloting comment resolution process. - The SSVT standard C57.13.8 development effort led by David Wallace is

continuing. - A working group is being led by Zoltan Roman to revise the PLC Caps and

CCVT standard C57.13.

F.6 Working Group Reports

F.6.1 Working Group on Current Transformers with mA range (WG C57.13.7) - Chair: Henry Alton, Vice-Chair: Adnan Rashid

This WG did not meet in Louisville. The Standard is in the ballot resolution process and a PAR extension is expected in Dec.

F.6.2 WG on Station Service Voltage Transformers - D Wallace

The meeting of the C57.13.8 Working Group met at 8:00 AM as convened by Chair David Wallace. Roster sheets were circulated for attendees to sign in.

Annex F


A total of 35 people were in attendance with 16 members and 19 guests. 16 out of 29 members were present, therefore quorum was met. Four guests requested membership.

The agenda was presented and accepted with no discussion.

The Patent Claims Statement was presented to the workgroup with no claims being identified.

The minutes from the New Orleans meeting were presented. The minutes were accepted by unanimous agreement

In old business, Clause 5.8 was discussed to determine what needed to be changed to reflect the actual accuracy requirements as they relate to the simultaneous load on the power winding. It was agreed that wording would be added to address this issue and placed in draft 4.1 for comment. It was also decided to add a statement indicating that the metering winding is an optional accessory.

In new business, the comments on Draft 3 were reviewed. A total of 42 comments were presented. During the meeting, 21 were addressed.

During the review, it was decided to send a survey out regarding the 173% Overvoltage statement in clause 4.1.7.3.

Time expired before all of the comments could be reviewed. The remaining comments will be sent out to the WG for acceptance or further comment. The comments that receive full acceptance will be placed into Draft 4.1. The remaining comments will be discussed at the Spring meeting in Pittsburg.

A motion to adjourn the meeting was offered by Thomas Sizemore and seconded by Marek Kornowski. The motion carried unanimously without discussion.

F.6.3 WG PD in Bushings & PTs/CTs PC57.160 - Thang Hochanh Attendees: 68 Members attending: 20/33 - Quorum requirements were met. Rosters: Circulated for members and guests. Agenda: An agenda was presented and approved without objections for the meeting. Essential Patent Claims: Text was displayed and the Chair inquired as to if anyone knew of essential patent claims. None were brought up during the meeting. Minutes: Minutes were approved due for the Vancouver and New Orleans meetings. Motion to approve by David Wallace and this was seconded by Detlev Gross.

Annex F


Items discussed based upon comments received: A number of comments were received from 2 attendees for discussion as noted below. Comments discussed from Robert Middleton: · Under Keywords both voltage transformer and potential transformer appear. The text in the standard only refers to voltage transformer. – The unused keyword will be removed. · Under Normative References IEC 60270 appears twice. – The second reference will be removed. · Under 6.3.1 specific ranges are given for C1, C2 and C3. Large variations are possible for these capacitances. We see no need to specify a range. – This was previously discussed in the working group. The values given are as a typical reference, other values area possible. No change is to be made. · Annex C needs more editing to improve the English. Also better referencing of the Figures is needed. - References will be updated. A review of the English used will be made for grammatical type issues. · Clause C2 in Annex C references Annex 2 Figure 1.a? - Will be updated. Comments discussed from Raja Kuppuswamy: · Comments were mostly related to PD monitoring with online equipment which is a valid technique but outside of the scope of this guide. Additional items discussed: A call was made to move this guide into the balloting process once the discussed changes are implementing in the next draft. A motion was made by David Wallace and was seconded by Shibao Zhang. Motion to adjourn: A motion was put forth by Marek Kornowski and was seconded by David Wallace.

F.6.4 Working Group on Revision of C57.13.5 "Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above.

The WG met on October 31, 2017, from 9:30 am to 10:45 pm. Seventeen (17) members and twenty (20) guests attended the meeting. Seven (7) guests requested membership. The meeting was chaired by Pierre Riffon, chair of the WG. Mr. David Wallace was the vice-chair.

This was the fourth WG meeting.

Attendance has been recorded in the AM system.

Required quorum was met, presence of at least 13 members was required.

Revision 1 of agenda has been reviewed was approved unanimously.

Request of approving the Minutes of New Orleans meeting minutes has been sent by Email. On November 1st, 2017, the majority of WG members have approved the minutes as written.

Call for patents has been made and no essential patent claims have been reported.

Annex F


As the first item of business, the Chair proposed a new paragraph (clause 4.12 of D1.4) related to relaying accuracy designation when an anti-remanence gap is added within the magnetic circuit. The proposal was to add a "R" suffix after the C class designation. After discussion, it has been agreed that a test clause needs to be added in order to quantify the level of remanence. The test methodology will be based on the IEC methodology. This paragraph will be added in the next draft.

The second item of business was related to a proposal made by Zoltan Roman related to the temperature rise test methodology. He proposed to delete the limit of 20% regarding the ratio of dielectric losses to RI2 losses for doing temperature rise test with superimposed current and voltage and to replace it by a rated voltage limit of 550 kV and above.

The Chair showed examples where doing test with superimposed voltage and current is worthless for some 800 kV CT technologies like SF6 insulated CTs, hair pin or eye bolt designs. Their RI2 losses are significantly higher than dielectric losses. The chair showed also other examples that top core oil-insulated CTs rated below 245 kV have very low dielectric losses compared to RI2 losses and for those, a temperature rise test with rated current only is needed.

Mr. Zoltan Roman did also propose to delete the criteria of having a temperature rise test duration of 5 times the rated time constant. The chair showed, with an example, that this is needed for CTs having long thermal time constant. He also proposed to change the stability criteria from 1 K/hour to 3 K/hour. The Chair did strongly oppose to such change of the stability criteria, the 1K/hour is even not enough for CTs have long thermal time constant.

After discussion, it has been agreed that the two main items proposed by Zoltan will be surveyed within the WG e.g.:

− What will be the criteria for determining if the temperature rise test needs to be performed with superimposed current and voltage or with current only (dielectric losses level or just voltage rating)?;

− Regarding the temperature rise test duration, do we want to keep the five thermal time constant duration or should we move to another criteria.

The meeting adjourned at 10:30 am on October 31, 2017. The adjournment motion was made by Mr. M. Kornowski and was seconded by Mr. T. Sizemore. The motion was approved unanimously.

F.6.5 C57.13.9 Working Group for PLC Capacitors and CCVT’s – Zoltan Roman Zoltan Roman started the meeting as Chair with Mike Craven as Secretary.

Introductions were made.

Annex F


This is the second meeting as a Working Group. There were 26 attendees and 18 members. 2 requesting Membership have just been added; they attended 2 consecutive meetings.

The patent notice was made and there were no patent claims by attendees.

The Minutes from the 4 April 2017 in New Orleans were approved with no one dissenting. (Motion made by Dave Wallace and seconded by Ross McTaggart.)

Zoltan Roman reviewed his updated schedule and plans to send Draft 1 and Draft 2 after the meeting to incorporate the meeting results. Latest changes will be color coded text.

As Old Business Zoltan reviewed points in the last meeting minutes. The main items of contention are:

-Table 5 test voltages are noted to be reconsidered in Draft 2. Discussion about a 3uS limit for the crest.

-5.5.2 Dielectric tests by user, was debated. There is an apparent conflict recommending lower 75 and 65% voltage tests while also allowing 100% to be consistent with C57.13. This will be surveyed.

Next agenda item was to review new revisions compiled in Draft 2.

Still unresolved are:

-Table 7 PD extinction voltages were left in red text.

-Table 8 (added) PD limits in pC for capacitors was left in red text.

For these items and others in general, the attendees were asked to consult testing departments for recommendations, future discussions and resolution.

F.6.6 C57.13.2 Working Group for Conformance Test Procedures – Thomas Sizemore Attendees: 22 Rosters: An initial roster was circulated for members and guests. Agenda: An agenda was presented and approved without objections for the meeting. A motion was put forth by Marek Kornowski and was seconded by David Wallace. Essential Patent Claims: Text was displayed and the Chair inquired as to if anyone knew of essential patent claims. None were brought up during the meeting.

Annex F


Review of the current version of the standard: The entire standard was reviewed by the attendees. Because the PAR is submitted but is not yet approved some votes could not be taken but items were identified for potential surveys. The details comments will be addressed in either the next draft or in a survey before the spring meeting.

- Randy Mullikin suggested the removal of the references to the applicability of this standard to use in recreational vehicles and mobile homes. Further he also suggested a sentence be added to reference the applicability of the main standard.

- Nigel McDonald suggested the removal of specifically dated references. In section 2 Normative References and other locations later in the document.

- David Wallace noted that on line 18 an reference 6 is in the text but does not appear as a footnote, etc.

- Stuart Chambers suggested review of lines 22 to 25 to determine if clearer language can be provided.

- Marek Kornowski suggested making a bulleted list of the requirements in section 5 Basis for Conformance.

- Marek Kornowski suggested that in section 7.3.1 the specific percentages be replaced by a reference to the accuracy table.

- Stuart Chambers noted that in section 7.3.2.1 the letters start with e instead of a. - Igor Ziger suggested the addition of the ‘R’ remanence designation as is being

discussed by the C57.13.5 WG. It was decided that for now we will wait to see what specific language and requirements come from the C57.13.5 effort.

- Igor Ziger suggested a survey be conducted about removing section 7.4 Temperature rise. May be moved to an additional tests section.

- Deepak Kumenria suggested a survey to remove section 7.5 Mechanical rating test.

- Igor Ziger suggested a survey to either remove or significantly revise section 8 Insulation system acceptance. Thomas Sizemore suggested it may have to be left in but revised at least to cover the case of low voltage varnished units.

- Deepak Kumenria suggested a survey to remove section 9 Production monitoring. Marek suggested that auditing, etc. by UL or CSA covers these requirements. Several other people discussed the merits. This section will be reviewed to ensure it is consistent with the scope and purpose.

- Nigel McDonald indicated the document referenced in the bibliography is no longer valid and that the replacement document is already referenced earlier. Remove the reference.

- Motion to adjourn: A motion was put forth by Marek Kornowski and was seconded by David Wallace.

F.6 New Business It was discussed if it was appropriate to initiate a Task Force to review accuracy requirements. No Chair for this work was identified but both Zoltan Roman and Igor Ziger have expressed an interest in a role if/when a task force is initiated. The next step will be to send a survey to the subcommittee asking if such a task force should be formed and comments will be sought regarding the range of topics this task force would look into. A request was made by Randy Mullikin to have the earlier presentations

Annex F


made available for review. Steve Snyder asked if the authority to make changes lies solely with the Instrument Transformer Subcommittee or if other groups within IEEE have to approve. Both C37.10 and 3004.1 were identified as groups that should be interested parties in this work. Diego Robalino indicated that C57.13.1 (field testing guide) is being revised and questioned if the ITSC should be involved in the review.

F.7 ITSC Adjournment

The meeting concluded after a motion to adjourn by David Wallace and seconding of this motion by Steve Snyder.

The next meeting will be at the Spring 2018 Transformers Committee meeting in Pittsburgh, PA

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Annex G Insulating Fluids Subcommittee

November 1, 2017 Louisville, KY

Chair: David Wallach Vice-Chair: Jerry Murphy Secretary: C. Patrick McShane

G.1 Introductions, Roll Call of Members for Quorum, Meeting Agenda Approval, S13 Minutes Approval, and Chair’s Comments

G.1.1 Chair’s Opening Remarks:

a. Reminded that the AMS must be used for Working Group and Task Force rosters.

b. Reminded that the WG and TF meeting minutes are due for submittal to the SCIF Secretary within 15 days of their meetings. The target date for SCIF Minutes is December 14, 2017.

G.1.2 Roll Call of SC members: (Quorum requirement: 25 minimum)

a. 35 Members signed in. Quorum was achieved. Six new SCIF Members were present: Jason Attard, Don Dorris, Don Platts, Alan Sbravati, Fabian Stacy, and Kevin Sullivan.

b. 61 Guests attended, of which 6 requested or re-requested membership: Stuart Chambers, John Foschia, Brian McBride, Dwight Parkinson, Mickel Saad, Kevin Sullivan

G.1.3 Agenda Approval:

a. The motion from George Forrest and seconded by Dave Sundin was approved unanimously, without objection.

G.1.4 Approval of minutes from the S17 meeting in New Orleans, LA:

a. The motion to approve was made by Susan McNelly and seconded by John John.

The motion was approval unanimously.

ANNEX G

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G.1.5 WG & TF Reports Presented at the SC Meeting

G.1.5.1 C57.104 – IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed Transformer (PAR Expiration: 12/31/17)

WG Chair - Claude Beauchemin

The report of the WG Meeting was presented at the SCIF meeting by Don Platts.

a. The WG had a notification there is a potential essential patent.

Presentation of what happened between meetings was reviewed. The data task force got to the point to develop a procedure to set up collection, storage, evaluation and post evaluation to keep data confidential. Contributions were received from18 different companies with 1.4 million data points.

b. With the database established, queries were made by different types of transformers. The significant difference indicating design groupings was for oxygen level indicative of preservation type, and equipment age were the important variables. The 90% table shows normal from abnormal, and 95th to show exceptional levels. The tables were the major change from last draft.

c. A straw ballot done and received many comments, some technical still unresolved.

d. Claude made a presentation showed wind farm and network units have higher values, and noted in the document as two exclusions. Some other items because we looked 1.4, many units fell in status 2 and status 3. Decided to drop CO2 to correct this.

e. The present draft got 2/3 vote to forward to IEEE SA by the working group. A motion by Luis Cheim with second by Don Platts was made to the Insulating Fluids SC to move to ballot. The motion was unanimously approved.

See Appendix I for the Minutes (unapproved) of C57.104 WG Meeting as Submitted.

G.1.5.2 IEEE C57.147 Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers (PAR Expiration: 12/31/18)

WG Chair: Patrick McShane, Vice-Chair: Clair Claiborne, Secretary: Jim Graham

The WG Report at the Sub-Committee Meeting: Presented by Patrick McShane:

a. No WG Meeting was held at F17. The work of the WG is completed as the voting is in the recirculation process.

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b. Since the last meeting, a recirculating vote was issued (Draft 4). All but two of the negative voters in the initial ballot switched to affirmative. One of the two has left the industry, and the other appears to be readily resolvable.

c. Five voters submitted 27 comments, which will be reviewed by the Ballot

Resolution Group and form the basis of the 2nd Recirculating vote (Draft 5), which will first be submitted to the WG Members for approval prior to submittal to IEEE SA.

G.1.5.3 TF on Consolidation of Insulating Liquid Guides (PAR Deadline: Pending submission. Number assigned (WG C57.166))

Chair: Tom Prevost

The TF Report given at the Sub-Committee Meeting by Tom Prevost:

a. The TF meeting will be the last, as a PAR request will be submitted in time for the January NESCOM meeting.

b. The next meeting, S18 Pittsburgh, will be the first Working Group meeting assuming the PAR application is approved.

c. The TF meeting focused on document format, to help establish Task Forces of the WG, which Tom estimates will be 6 or 7.

d. Patrick McShane asked for a clarification of “as received”, assuming it meant “as received in new equipment”. Tom confirmed that change and welcome additional input from the SC attendees.

See Appendix II for the S16 Minutes (unapproved) of TF Consolidation of Insulating Liquid Guides as submitted.

Old Business

None was presented.

G.2 New Business None was presented.

G.3 Next SCIF Meeting: March 18, 2018 – Pittsburgh, PA

G.4 Adjournment

The motion passed unanimously.

Respectively Submitted, Patrick McShane, Secretary SCIF

ANNEX G

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ANNEX G

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ANNEX G

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Unapproved Minutes from the F17 SCIF WG and TF Meetings

Appendix I – WG C57.104 Minutes

IEEE Guide for the Interpretation of Gases Generated in Oil –

Immersed Transformers

C57.104 – IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed Transformers

The meeting was called to order Tuesday, October 31, at 3:20pm by Chair Claude Beauchemin. Vice-Chairs Don Platts and Norm Field, and Secretary Susan McNelly (writer of Minutes) were also present.

There were 129 total in attendance. Of these 48 of 73 members were present. A membership quorum was achieved. There were 85 guests, and 14 of those requested membership. The WG plans to meet at the Spring 2018 Transformers Committee Meeting in Pittsburgh, Pennsylvania.

The following is a list of the working group members. Those in bold text with an asterisk were in attendance at the meeting.

ANNEX G

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Beauchemin, Claude*

Boettger, William*

Boman, Paul*

Brauer, Stephan

Castellanos, Juan*

Cheatham, Jonathan*

Cheim, Luiz*

Christodoulou, Larry*

Claiborne, C. Clair

Cox, Paul

Crouse, John

Damico, Frank*

Denzer, Stephanie*

Diaby, Mohamed*

Dorris, Don

Dukarm, James*

Duval, Michel*

Ferreira, Marcos*

Field, Norman*

Forrest, George*

Frimpong, George

Frotscher, Rainer*

Galbraith, Shawn*

Gardner, James*

Golarz, Jeffrey*

Golner, Thomas*

Hanson, David

Hayes, Roger*

John, John*

Joshi, Arvin*

Kiparizoski, Zan*

Ladroga, Richard

Lau, Michael

Luo, Shawn

Mani, Kumar*

Mao, Libin

Martin, Terence*

McCullough, Douglas*

McIver, James

McNelly, Susan*

Moleski, Hali

Morales-Cruz, Emilio*

Murphy, Jerry

Mushill, Paul*

Naderian, Ali

Nims, Joe*

Nunes, Jr, Jayme

Nunez, Arturo*

Patel, Poorvi*

Perjanik, Nicholas*

Petosic, Branimir

Pinon, Oscar

Platts, Donald*

Prevost, Thomas*

Pruente, John

Rasco, Jimmy*

Rasor, Robert

Ray, Jeffrey*

Reed, Scott

Roizman, Oleg

Selvaraj, Pugazhenthi*

Simonelli, Richard*

Sparling, Brian*

Stiegemeier, Craig

Sullivan, Kevin*

Sweetser, Charles

Thompson, James

Thompson, Robert

VanderWalt, Alwyn*

Veillette, Michel

Wallach, David*

Wang, Evanne*

Williams, Trenton*

Woods, Deanna*

Yeboah, Kwasi

The following guests requested membership, but due to the status of the document, no new members will be added.

ANNEX G

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Ayers, Donald

Crotty, John

Dorris, Don

Franchitti, Anthony

Guner, Ismail

Pellon, Verena

Sandhu, Surinder

Sarkar, Amitabh

Shem-Tov, Mark

Walia, Sukhdev

White, Leon

Woods, Deanna

Cheema, Muhammad

Whitehead, Bill

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Agenda 1. Attendance Roster Circulation 2. Member Roll Call & Quorum Check 3. Approval of the Spring 2017, New Orleans minutes 4. Document Status

a. Straw Ballot Draft 4 b. Discuss major comments/revisions c. Next step

5. New Business 6. Adjournment

A call for essential patent claims was made. Donald Lamontagne from APS indicated he may have an essential patent claim.

A motion to approve the Fall 2017 Louisville Agenda was made by Brian Sparling and seconded by Tom Prevost. There were no objections or additions to the agenda.

A motion to approve the Spring 2017 New Orleans Meeting Minutes was made by Tom Prevost and seconded by Kumar Mani. There were no objections or additions to the minutes.

Introductions of the Chair Claude Beauchemin, Vice-Chair Don Platts, Vice-Chair Norm Field, and Secretary Susan McNelly were made. Attendees were asked to introduce themselves and indicate their affiliations when making comments or asking questions.

Claude gave a brief update on the status of the document and the most recent Straw Ballot (Draft 4).

Straw Ballot 4 – Status/Results

Activities since Spring meeting

• Data analysis performed • New tables generated • Draft updated and released for straw ballot • PAR extension requested

Planned activities

• Review Database analysis results • Review straw ballot results • Discuss and implement required modifications • Request an approval to go to sponsor ballot from the WG • If positive, request approval to go to sponsor ballot from sub committee

Annex G

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DGA Database

• Data analysis performed on August 30 and 31, 2017 in the presence of the following WG members:

• Don Platts • Norm Field • Luiz Chiem • Bob Rasor • Hali Moleski • Claude Beauchemin

Claude expressed a special thank you to Bob Rasor and Hali Moleski from SD Meyer for hosting the data analysis meeting.

• Number of data suppliers: 18 (some sources have been broken by regions) • Total number of DGA analysis: 1 391 436 • Total number of Transformers: 313 076 • Total number of DGA with transformer age: 595 650*

General information

The idea is to preserve as much information as possible since the data set had to be destroyed after the analysis.

Most of the DGA is from transformers 30 years or younger.

Annex G

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Factors influencing 90 & 95 Percentiles

• Study the effect of various factors on the 90 and 95 percentile: o O2/N2 Ratio o Age o Vintage o MVA o KV o Oil Volume o Total Dissolved Gases

Factor DGA H2 CH4 C2H6 C2H4 C2H2 CO CO2 Average all gasesO2 Ratio < 0.2 876314 83 87 91 54 0 901 9263O2 Ratio > 0.2 495561 41 20 14 50 2 481 5011Max - Min / Average 67.7% 125.2% 146.7% 7.7% 200.0% 60.8% 59.6%

Age 1 to 10 Years 147472 65 38 21 20 1 699 4076Age 10 to 30 Years 275286 58 67 59 47 1 896 7591AgeYear > 30 years 189415 82 73 84 65 2 697 7851Max - Min / Average 35.1% 59.0% 115.2% 102.3% 75.0% 26.0% 58.0%

Manufacturing Year > 1987 331028 54 46 26 31 1 865 6171Manufacturing Year < 1987 288202 84 81 90 65 2 705 7634Max - Min / Average 43.5% 55.1% 110.3% 70.8% 66.7% 20.4% 21.2%

Maximum MVA < 10 568682 69 64 56 59 1 884 9449Maximum MVA > 10 356038 63 76 74 50 2 652 5689Max - Min / Average 9.1% 17.1% 27.7% 16.5% 66.7% 30.2% 49.7%

HVkV < 60 626153 66 65 56 58 1 864 9126HVkV > 60 347877 69 79 83 52 2 643 5687Max - Min / Average 4.4% 19.4% 38.8% 10.9% 66.7% 29.3% 46.4%

Oil Volume Galllons < 2000 554687 72 67 58 58 0 912 9792Oil Volume Gallons > 2000 218857 68 62 62 44 0 600 5527Max - Min / Average 5.7% 7.8% 6.7% 27.5% 0.0% 41.3% 55.7%

Total Dissolved Gases < 100000 ppm 1043500 63 65 62 50 1 770 7300Total Dissolved Gasse > 100000 ppm 328907 83 67 60 62 1 848 10328Max - Min / Average 27.4% 3.0% 3.3% 21.4% 0.0% 9.6% 34.4%

90 Percentiles in ppm and delta in %

95.4%

67.2%

55.4%

31.0%

30.9%

20.6%

14.2%

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Factor DGA H2 CH4 C2H6 C2H4 C2H2 CO CO2 Average all gasesO2 Ratio < 0.2 876314 192 163 182 108 2 1110 12524O2 Ratio > 0.2 495561 88 50 39 108 7 620 6982Max - Min / Average 74.3% 106.1% 129.4% 0.0% 111.1% 56.6% 56.8%

Age 1 to 10 Years 147472 147 87 56 52 3 898 5716Age 10 to 30 Years 275286 140 135 136 101 3 1112 10371AgeYear > 30 years 189415 168.3 141 174 133 5 896 10825Max - Min / Average 18.6% 44.6% 96.7% 85.0% 54.5% 22.3% 57.0%

Manufacturing Year > 1987 331028 121 99 74 71 3 1085 8731Manufacturing Year < 1987 288202 180 153 180 139 5 897 10471Max - Min / Average 39.2% 42.9% 83.5% 64.8% 50.0% 19.0% 18.1%

Maximum MVA < 10 568682 158 131 131 115 3 1091 12645Maximum MVA > 10 356038 139 141 152 107 4 849 7928Max - Min / Average 12.8% 7.4% 14.8% 7.2% 28.6% 24.9% 45.9%

HVkV < 60 626153 150 132 133 114 4 1072 12283HVkV > 60 347877 150 147 168 112.2 4 836 7863Max - Min / Average 0.0% 10.8% 23.3% 1.6% 0.0% 24.7% 43.9%

Oil Volume Galllons < 2000 554687 166 134 132 109 2 1115 13081Oil Volume Gallons > 2000 218857 147 118 137 94 4 791 7719Max - Min / Average 12.1% 12.7% 3.7% 14.8% 66.7% 34.0% 51.6%

Total Dissolved Gases < 100000 ppm 626153 150 132 133 114 4 1072 12283Total Dissolved Gasse > 100000 ppm 347877 150 147 168 112.2 4 836 7863Max - Min / Average 0.0% 10.8% 23.3% 1.6% 0.0% 24.7% 43.9%

27.9%

95 Percentiles in ppm and delta in %

76.3%

54.1%

45.3%

20.2%

14.9%

14.9% Influence of O2/N2 ratio

• Of all the possible factors, the O2/N2 ratio has the strongest overall effect: 75 - 90%

• Second: Age and/or Vintage: around 45 - 65% • Third: kV, MVA and Volume, around 15 - 30%

Note: Age and vintage are strongly correlated, same for MVA, kV and oil volume

Age VS Manufacturing Year

Influence of O2/N2 ratio

• Decision: Two levels tables are based on: o O2/N2 ratio split at 0.2 o Age split in 4 groups

Unknown (based on analysis of all data) 1 – 10 years 10 – 30 years > 30 years

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Data Distribution

All 1-10 10-30 >30 All 1-10 10-30 >30

Number of DGA 876 314 84 215 179 829 113 264 495 561 59 320 86 983 72 039

% of DGA 63.0% 6.1% 12.9% 8.1% 35.6% 4.3% 6.3% 5.2%

O2/N2 <= 0.2 O2/N2 > 0.2Age in Years

Factors influencing 90 & 95 Percentiles

O2 Ratio:

Unknow 1-10 10 - 30 > 30 Unknow 1-10 10 - 30 > 30

H2 80 110 40

CH4 90 45 90 110 20

C2H6 90 30 90 150 15

C2H4 50 20 50 90 50 25

C2H2 1 2

CO 900 500CO2 9000 5000 5000 3500

Transformer Age in YearsTransformer Age in Years

5500

20

10000

40

15

60

500

Table 1O2/N2 <= 0.2 O2/N2 > 0.2

Gas / Age

1 2

75

900

O2 Ratio:

Unknow 1-10 10 - 30 > 30 Unknow 1-10 10 - 30 > 30

H2 200 90

CH4 150 100 150 200 50 30

C2H6 175 70 175 250 40 30

C2H4 100 40 95 175 100 80

C2H2 2 4 7CO 1100 600CO2 12500 7000 7000 5000

Transformer Age in Years Transformer Age in Years

110014000

90

60

40

125

7600

8000

2

200

Gas / Age

O2/N2 <= 0.2 O2/N2 > 0.2

Table 2

Gas \ O2 Ratio O2/N2 <= 0.2 O2/N2 > 0.2H2 40 25

CH4 30 10C2H6 25 7C2H4

C2H2

CO 250 175CO2 2500 1750

Table 3Maximum µL/L (ppm) variation between consecutive DGA

samples below Table 1

Any Increase20

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Straw ballot 2

• Request sent September 28, 2017 • Draft 4.0 • 24 responses • 178 comments

o 30% Technical, 70% Editorial • Processed by the WG leaders in the week of October 22, 2017

Comments

• Most of editorial comments accepted and corrected. Some to be done after meeting

• Some editorial comments could not be corrected due to inadequate references (page and section) or lack of suggestion

• Most Technical comments accepted and corrected • Some Technical comments need discussion

Discussion: 1.1 Scope

Ballot Comment

• “The scope is not clear if both power and distribution transformers are included. Section 1.3 is clear that Network or Windfarm transformers are not included. Section E.5 has an example of 500 kVA distribution transformer. It is suggested to clarify the scope in section 1.1.”

Responses:

o Pro: Adding more categories might clarify o Con: Will end up in a long list and might miss some categories (GSU,

Power, Transmission. Distribution, Industrial…) o Other guide: Transformer and reactor o TF Decision: No list.

Discussion:

• Jim Dukarm asked, what is included in the database. For instance, is less than 1MVA included. Claude indicated yes. What is covered should not differ from what is included in the database statistics.

• Vijay K (VTC) comment on splitting information by size. Claude reiterated that the size (rating, voltage, and volume) did not show major differential in results. Claude indicated this is a common opinion, but the data did not prove this true. On the other hand, O2 ratio and age are factors and are part of the Table 1 and Table 2 division.

• Leon White – Indicated he agrees that size does not matter. He indicated that there should be something in the document indicating the range of the transformer size and types of units as clarification. Claude indicated that this could be added to Annex A. He indicated he could easily add a graph o f rating distribution to the Annex A. Leon indicated that it might be best to have that up front in the document rather than in an Annex.

• Rainer Frotscher – commented that the guide applies to transformers in mineral oil and specifically indicate what types of units are not included. .”This guide applies to mineral oil transformers except those identified in section 1.3.” for an example of how the Section 1.1 scope should be revised. Rainer made a motion to modify the scope as identified above.

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Discussion: Dave Wallach asked if this revision is worth having to change the scope and as a result request a PAR revision. Claude asked whether this clarification could be moved to section 1.3 instead. There was additional discussion on the effect of this on the plan to proceed to ballot. This process can proceed to ballot. There was a comment to change the title of section 1.3 to “Exclusions”. This will be addressed later in discussion of section 1.3. Those in favor 6, 18 opposed.

• Fredi Jakob - ???

Ballot Comments

• “The scope of guide includes "operating procedures". The only place that the document comments on "operating procedure" is the classic TCG (Table G-2). The user is eager to have a guidance as what to do with 90% or 95% limits. Is it possible to come up with a generic guide/table same as Table G-2 like : continue operation, sample more frequent, Exercise caution, Remove. If not, I suggest to remove "Suggested operating procedures" from the scope of work (section 1.1).”

• There is suggestion in section 6.1.2.1 "Normal transformer operation can be continued.", in section 6.1.2.2 "..and warrant additional investigation ...increased sampling frequency should be maintained or started..." and in section 6.1.2.3 "The transformer should be placed under strict surveillance and additional transformer testing is recommended...".

• Will a “Operating Procedure” Table be too much of a short cut, prompting user to just jump to the table without considering all the qualifications presented in the rest of the text ?

Response:

Should such a table be added?. Don Platts indicated that a table like that would be helpful to some people, but disconcerting to others. He indicated it would be disruptive to more people than helpful. Concensus by show of hands was to not add this table.

Discussion: 1.3 Limitations

• Some categories of transformer excluded: o Windfarm Step-up o Network

• Value much higher than general population • Should we explain in the guide? • If yes, where? Main body? Annex? How much explanation?

Discussion:

Brian Sparling indicated he was not part of the Wind Farm WG, but asked if there were any cautions or warnings about gassing in that guide. A response was that it is not.

Don Ayers – Indicated that gassing was discussed in relation to the grounding of the core. This is not in the document, but is a concern.

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Rainer Frotscher – Brought up Network TRs. He indicated the addition of as defined in IEEE Std C57.12.80, is now more clear.

Bob Rasor indicated that the data will not be lost, but will be reviewed for inclusion in another document.

Sukhdev Walia – Indicated that the application of wind farm transformers is rising and sooner or later this will need to be address.

• Proposed text: This Guide is not applicable to windfarm step-up transformers or network transformers (as defined in IEEE Std C57.12.80) having disconnect/grounding switches in the transformer oil. The user of this Guide must also carefully consider whether the transformer may be purposely designed for special application with normally anticipated excess electrical or thermal stress. Transformers closely connected to power electronics or with frequent and widely fluctuating load (such as transformers at wind turbines) may not be well suited for DGA interpretation using this Guide."

General Windfarm NetworkH2 57 2352 2460CH4 66 593 522C2H6 56 162 160C2H4 58 47 36C2H2 0 5 0CO 889 977 567CO2 9138 5173 5670

90th Percentile

A question was asked whether the titel of Section 1.3 should be changed to “Limitations and Exclusions? This was approved.

Discussion 1.4 – Future Work

• A sub-section named “Future work” has been added to section 1 • Should we keep it? • Does any items need to be added? • Does any items need to be removed? • Does any items need to be modified?

Future Work

The procedure to interpret DGA results presented in this guide is, by its very nature, a work in progress.

Evolution of our understanding of DGA contributes to the evolution of DGA interpretation techniques and must continue to evolve due to a wide variety of industry changes:

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• New material and new material processing, • New transformer designs, • New applications of transformers, • Changes in data availability and quality, • Changes in the operation and use of transformer; • Change in the expectation of what DGA interpretation should supply to the

transformer owners.

This guide represents the best interpretation of the data available based on the experience of the experts contributing to this document. Therefore, the industry should strive to continue to upgrade and improve it.

Several opportunities for improvement have been identified during the revision work that resulted in the present guide. While some effort was put into pursuing these topics, resolution of them remains too elusive to be included in this current guide

• Reduce the number of DGA marked as “Investigate” without losing the capability to detect abnormal situations.

• Obtain a better correlation between DGA results and actual fault detection and identification.

• Adapt DGA interpretation to specific applications, such as Windfarm, Network, GSU, distribution.

• Build an industry wide database of DGA, including all pertinent transformer information’s, to support the future evolution of this guide.

• Application of DGA interpretation with the use of on-line DGA monitors, specifically in regard to their rate of change calculations.

Comments (3):

• Section 1.4 "Future Work" is not within the scope of the document and should be omitted.

• I like the approach of adding the Future Work section. Suggested clarification. "…current guide. These topics include:

• Much earlier in the development of this guide, we discussed creating a section or appendix for the express purpose of documenting how key features of the guide were achieved. The intent was to give contributors to future revisions documentation that might be instructive for their work. I recommend that suggestions for future work be included with this in the context of challenges this working group faced or would have faced to address that work. This section will also be instructive to those who question the origins of that key information.

So, what should we do? Keep in its present location, move to annex, or remove completely?

Discussion

Jim Dukarm - Indicated he was the one that commented that the future work is not within the scope of the document and should be discarded.

Dave Wallach proposed to move the future work to Annex A. This was seconded by Jim Dukarm.

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A recheck on quorum after the break verified that a quorum was still present.

All but one abstaining were in favor of the proposal. Proposal passed.

Discussion Figure 1

• Figure 1 shows Fault Type D2 occurs at a temperature that is lower than that of D1. I would have thought it should be the other way?

Answer: D2 are discharges with high energy that are usually affecting a larger volume of oil than D1 which lower the overall temperature of the affected oil

Discussion Table 1 & 2

• One could easily see the C2H2 has a different pattern than other gases, i.e. it has a lesser limit for sealed transformers. Is there a logical explanation for this? If so, can we include it? If no, should we modified the table so as not to confuse the users?

• Some values should be changed or at least get an explanation to justify them. o For O2/N2>0.2 and Age > 30 , CH4 limit is 30 ppm, lower than

younger transformer. It is in opposition with all other values in table 1 and table 2. This value will change the DGA status from 2 to 3 just based on the age.

o For O2/N2 > 0.2, it specifies a higher C2H2 level (7 ppm), but for all other gases, the gas limits are lower or equal to those in O2/N2<0.2. Why?

Influence of O2/N2 ratio

• High O2/N2 ratio: Generally lower values, except for C2H2 • Low O2/N2 ratio: More differences in function of age • C2H2 question: Why it is different? Could it be the result of a single data

source skewing the analysis?

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• Gas with higher levels with low O2 : Largest correlation: CH4 and C2H6

• Gas with higher levels with low O2 : Strong correlation: CO and CO2

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• Gas with higher levels with low O2 : Strong correlation: H2

• Gas with higher levels with low O2 : Correlation ??: C2H4

• Gas with higher levels with high O2 : Inverse correlation: C2H2

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Discussion

Claude concluded that the higher C2H2 level in high O2/N2 ratio in comparison to low O2/N2 ration is real.

Fredi Jakob – Normally the higher O2 indicates some leakage in the system which affects the loss of gas from the oil. The other factor is that if you have higher O2, there is a likelihood of oxidation which could be the reason for the acetylene. He indicated he doesn’t think any further explanation is needed. Claude added than another possible explanation could be that transformers with conservators (mostly with high O2/N2 ratio) are more exposed to possible gas leak from the LTC compartment through an adjacent conservator compartment.

Table 1

O2 Ratio:

Unknow 1-10 10 - 30 > 30 Unknow 1-10 10 - 30 > 30

H2 80 110 40

CH4 90 45 90 110 20

C2H6 90 30 90 150 15

C2H4 50 20 50 90 50 25

C2H2 1 2

CO 900 500CO2 9000 5000 5000 3500

Transformer Age in YearsTransformer Age in Years

5500

20

10000

40

15

60

500

Table 1O2/N2 <= 0.2 O2/N2 > 0.2

Gas / Age

1 2

75

900

Table 2: Should we modify CH4 for O2/N2 >0.2?

O2 Ratio:

Unknow 1-10 10 - 30 > 30 Unknow 1-10 10 - 30 > 30

H2 200 90

CH4 150 100 150 200 50 30

C2H6 175 70 175 250 40 30

C2H4 100 40 95 175 100 80

C2H2 2 4 7CO 1100 600CO2 12500 7000 7000 5000

Transformer Age in Years Transformer Age in Years

110014000

90

60

40

125

7600

8000

2

200

Gas / Age

O2/N2 <= 0.2 O2/N2 > 0.2

Table 2

Claude asked whether these values should be merged or left as is. Concensus was to keep as is and not merge.

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Discussion: High level of status 2 and 3

• “Discussion of high false alarm rates expected from the interpretive method: Reduce or eliminate the reliance on gas concentrations for deriving the status code.”

• “This Guide suffers from the same consequences of gas levels as previous guides, Once a gas level associated with Status 3 is reached, that status will potentially be permanent. I am concerned that units with Status 3 reached because of Carbon Oxides alone will remain permanently in that status. I do not see the benefit of this particular circumstance.”

Number of DGA marked as “Investigate”

Jim Dukarm – indicated that there was a disclaimer on Table 1 in the 2008 version of C57.104 indicating that the limits applied only to the first sample. Claude indicated that this is correct, but Table 1 of the 2008 version is routinely misapplied and when it is used as it is practically used today by the vast majority of users, it generates the above graph with the studied database..

Applying the same data using the new proposed guide will provide the above distribution.

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IEEE Version 2008 by Sources

IEEE Version 2017 by Sources

Condition 1 VS Status 1

Number of DGA marked as “Investigate”

• Already improved in regards of the 2008 version: • Classified as 1 (“Normal”):

o 41% in 2008 version o 62% in 2017 version

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• Part of “Future work” suggestion • Three possible avenues:

o Reduce the number of gases used in Table 1 & 2 o Use higher percentiles o Develop a combination of indices in the same philosophy as the old

TDCG • Reduce the number of gas used in Table 1 & 2 • Advantage: each gas removed will reduce the number in Status 2 or 3 • Drawback: could reduce the sensibility to some fault types • Only possible candidate at this stage: CO and CO2 (To be discussed in a few

slides) • Use higher percentiles • Advantage: using higher percentile is simple • Drawback:

o Higher percentile are more susceptible to variations o Decision to use 90-95 taken by vote o 90-95 are used by other industries and are generally recognized at valid

for this type of work • Develop combination indices in the same philosophy as the old TDCG • Advantage: Use of a single indices (agglomeration of several gases in a single

value) will produce status 2 and 3 populations of 5% each • Drawback: Developing such indices will require time and involve additional

discussions: No time left!!

The CO & CO2 question

• One practical possibility for future work: Remove CO and CO2 from Table 1 & 2 and keep only in Table 3 (Deltas)

Discussion: High level of status 2 and 3 (as mentioned earlier)

• “This Guide suffers from the same consequences of gas levels as previous guides, Once a gas level associated with Status 3 is reached, that status will potentially be permanent. I am concerned that units with Status 3 reached because of Carbon Oxides alone will remain permanently in that status. I do not see the benefit of this particular circumstance.”

The CO & CO2 question

• One practical possibility to reduce the number of DGA in Status 2 and 3: Remove CO and CO2 from Table 1 & 2 and keep only in table 3 (Deltas)

• Rationale: o CO and CO2 also produced by oil aging, not just paper as traditionally

believed. o CO and CO2 are produced by natural aging of paper, so level produced

by abnormal conditions are easily masked by “natural” background level, reducing effectiveness of these gases to detect anomalies

• Result: population curves is flatter, less discrimination between 90th-95th and the lower percentiles compared to the other gases.

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H2 CH4 C2H6 C2H4 C2H2 CO CO22.3 2.0 2.2 2.1 4.0 1.3 1.4

Ratio 95th/90th

• Rationale: CO2 was not part of initial guide. Added on 1991 without

explanation. • There is no interpretation of CO and CO2 in the main body of the guide, only

in the annex. • Keeping CO and CO2 in table 3 (Delta) still preserve the sensibility to detect

sudden changes if a fault producing those two gases occur. • This approach could increase the number of DGA in status 1 from 62% to 69% • This approach could decrease the number of DGA in status 3 from 21% to 14% • This imply that 7% of DGA are classified in Status 3 due to CO and CO2 only

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Discussion

Jim Dukarm made a motion that Table 1 and Table 2 should include a disclaimer that the tables only be used with initial samples and Table 3 should only be used with additional samples.

Discussions on motion by Luis Chiem, Fredi Jakob, Claude Beauchemin and Jim Dukarm. Jim indicated the motion just is that the table is a first cut as to the urgency of what the next step should be.

Claude indicated that this is what was attempted to be done. Rainer Frotscher indicated that he disagreed with the motion and indicated that there is already discussion in the document that covers this. Jim indicated that the raised status is the concern.

The vote of the motion was called. Those in favor: 9, those opposed 21, abstentions 6. Motion failed.

Norm Field made a motion that CO2 be removed from Table 1 and Table 2. Jim Dukarm seconded the motion. The vote was called. Those in favor: 8, Those opposed 18. Motion failed.

Claude indicated that he feels the document is sufficiently complete to go to ballot. Additional work can be done as part of ballot comments. A 2 year PAR extension has been requested, but not yet approved. Brian Sparling made a motion to proceed to ballot and was seconded by Tom Prevost. There were 32 in support of the motion, which met the 2/3 of members present requirement.

Claude indicated that there are still some additional corrections needed from the straw ballot comments, and the meeting, that will be done prior to submittal to ballot.

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The meeting was adjourned at 6:01PM

Claude Beauchemin

WG Chair

Don Platts WG Vice-Chair

Norm Fields WG Vice-Chair (not present)

Susan McNelly WG Secretary

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Unapproved Minutes from the F17 SCIF WG and TF meetings

Appendix II – TF Insulating Liquid Guides Consolidation Minutes

Chairman Tom Prevost Secretary Scott Reed

Task Force on Consolidation of Insulating Liquid Guides Monday, October 30, 2017

9:30 – 10:45 AM Marriott 5

Louisville, Kentucky Chairman Tom Prevost Secretary Scott Reed The meeting was called to order at 9:41 am by Chair Tom Prevost. There were 33 of 74 members present. There were 24 guests and 29 visitors. A membership quorum was not achieved. Agenda

1) Introductions 2) Quorum 3) Approval of agenda 4) Approval of Spring 2017 minutes 5) Call for patents 6) Review of current document status

a. C57.147 “Guide for Acceptance and Maintenance of Natural Ester Insulating Fluids in Transformers and Other Electrical Equipment”

i. In Revision process, PC57.147 ii. Ballot Status

7) New Document: a. Title b. Scope c. Purpose d. Status of PAR

8) Presentation and discussion of document format 9) Establishment of Task Forces

a. Editorial b. Test methods c. Mineral Oil d. High Molecular Weight Hydrocarbons e. Silicon f. Natural ester g. Synthetic Ester

10) New Business

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11) Adjourn Due to the time constraints, attendees did not introduce themselves. There was unanimous approval of the Agenda. Chairman Prevost posted the Patent Claim. David Sundin announced a potential claim. There was a unanimous approval to the Spring 2017 New Orleans meeting minutes. Chair’s Remarks: Chairman Prevost announced we are applying for a PAR. It has not been approved yet but it will be ready for the Spring 2018 meeting in Pittsburgh. The membership roster will start anew once the Par is approved. Each member will have to apply at the time. Next, the scope and purpose of the guide were reviewed. Scope: This guide provides acceptance and maintenance criteria for insulating liquids used in transformers, tap changers, regulators and reactors. Purpose: To assist the user of the equipment in evaluating insulating liquids:

• As received from insulating liquid supplier prior to processing and/or filling into equipment. • Received in new equipment filled prior to energization. • In service-aged equipment.

This guide also discusses the following related in insulating liquids:

• Test methods and their significance • Methods of handling and storage • Mixtures of insulating liquids • Re-processing, re-claiming and replacement

This guide does not cover dissolved gas analysis of insulating liquids, which is covered by other IEEE Standard Guides. Chairman Prevost reviewed the Document Format template and members contributed suggestions.

1. Overview 2. Normative References 3. Definitions 4. Types of Insulating Liquids 5. Oil Tests and their Significance 6. Evaluation of Insulating Liquids

1. New-As supplied 2. New- As received.

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3. Service-Aged 7. Mixture of Fluids 1. Retrofilling 8. Sampling 9. Maintenance of Insulating Liquids

1.Reprocessing 2. Reclaiming

10. Insulating Liquids for Load Tao Changers 11. Health and Environmental Care 12. Bibliography

There was discussion about test methodology and establishment of Task Forces No New Business was discussed and the meeting was adjourned at 10:48 am.

Page 1 of 11

Insulation Life Subcommittee

November 1, 2017 Marriott Hotel, Louisville, Kentucky, USA

Chair: Sheldon Kennedy Vice-Chair: Barry Beaster Secretary: Sam Sharpless

The Insulation Life Subcommittee was called to order by the Chair in Louisville, Kentucky on November 1, 2017 at 8:10 AM. Due to the size of the group, general introductions were not made. The Chair requested that each person state their name and affiliation when addressing the subcommittee.

H.1 Chair’s Report/Remarks

The chair provided the dates of upcoming Transformer Committee meetings as follows;

2018 Spring Meeting; March 25-29, 2018, Pittsburgh, Pennsylvania, USA

2018 Fall Meeting; October 14-18, 2018, Jacksonville, Florida, USA

The Chair requested that any person with knowledge of a patent essential to meet the requirements of any subcommittee standard to bring the issue forward for discussion. No one responded to this request.

The Chair requested the following items be included in all activity group minutes;

- The name of the activity

- The date and time of the meeting

- The number of members and guests in attendance. Full attendance should be recorded in the AMS system

- The presence or absence of a quorum

- Any essential patent issues raised during the meeting.

- A summary of discussion. Intricate detail not required. Use a separate document to explain decisions that are made.

- A record of the decisions made in the meeting

- If there will be another meeting. If so, state the time and place.

- Submit minutes as soon as possible, but no more than 15 days after the meeting.

The Chair reminded everyone that working groups must achieve a two-thirds majority to submit a document for Sponsor Ballot. The subcommittee must achieve a simple majority to submit a document for Sponsor Ballot.

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The Chair discussed the membership requirements and recognized the following new members; Jose Gamboa, Saurabh Ghosh, Jinesh Malde, Mickel Saad, Robert Thompson, Jason Varnell, and Michel Veilette.

The Chair discussed the requirements for continued membership and stated that the following members had been moved to guest status due to lack of attendance; Dieter Dohnal, Kenneth McNeish, Hasse Nordman, Oscar Pinon, Rakesh Rathi, Subhas Sarkar, Charles Simmons

The Chair noted that the following guest had been removed from subcommittee rolls by request; Keith Ellis

The Chair reported on the status of subcommittee Projects;

• C57.91 - IEEE Guide for Loading Mineral Oil-Immersed Transformers; C57.91 is valid until 2021.

• C57.100 - IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution Transformers; C57.100 is valid until 2021.

• C57.119 - IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings; C57.119 is valid until 2018. The working group chair for revision of this document is Gael Kennedy.

• C57.154 - Design, Testing and Application of Liquid-Immersed Transformers with High-Temperature Insulation; C57.154 is valid until 2022.

• C57.162 – Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors; The C57.162 PAR expires December 31, 2017. The standard is valid until 2018. A PAR extension has been requested. The working group chair for revision of this document is Thomas Prevost.

• 1276 – Guide for the Application of High Temperature Insulation Materials in Liquid-Immersed Power Tranformers; The 1276 PAR expires December 31, 2016. The standard is valid until 2018. A PAR extension has been requested. The working group chair for revision of this document is Roger C. Wicks

• 1538 – IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformers; 1538 is valid until 2021. An amendment was approved September 2015. The working group chair for revision of this document is Richard P. Marek.

H.2 Secretary’s Report

The Secretary reported that according to the electronic check-in system, 90 members were present at the start of the meeting and that a quorum had thus been achieved.

The Spring 2017 subcommittee meeting minutes had been provided to participants in advance of the meeting for review. Hem Shertukde made a motion to approve the minutes, the motion was seconded by John John and carried by acclamation with no objections.

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The Fall 2017 subcommittee meeting agenda was provided to participants in advance of the meeting for review and they were also presented on a screen at the meeting. Don Platts made a motion to approve the agenda, the motion was seconded and carried by acclamation with no objections.

Consolidation of the electronic check-in records and the written attendance rosters after the meeting showed that 214 total members and guest were present at the meeting.

Eleven guests requested membership via the membership roster and all met the membership criterion; Jason Attard, Kevin Biggie, Roger Fenton, Gael Kennedy, Neil Kranich, Kumar Mani, Shankar Nambi, Anastasia O’Malley, Pugazhenthi Selvaraj, Robert Stinson, and Peter Zhao.

H.3 Project Status Reports

C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers

C57.91 is valid until 2021.

C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution Transformers


C57.119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings

C57.119 is valid until 2018 and the working group is Chaired by Gael Kennedy.

C57.154 Design, Testing and Application of Liquid-Immersed Transformers with High-Temperature Insulation


C57.162 - Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors

The C57.162 PAR expires December 31, 2017. The standard is valid until 2018 and the working group is Chaired by Tom Prevost. A PAR extension has been applied for.

1276 Guide for the Application of High Temperature Insulation Materials in Liquid-Immersed Power Transformers

The 1276 PAR expires December 31, 2016 and a PAR extension has been approved through 2018. The standard is valid until 2018 and the working group is chaired by Roger C. Wicks.

1538 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformer

The 1538 guide is valid until 2021 and the working group is chaired by Richard Marek. An amendment was approved in September 2015.

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165 IEEE Guide for Temperature Measurements for Liquid Immersed Transformers and Reactors

The 165 guide has just been started and the working group is Chaired by Phil McClure. The PAR is valid until 2021.

H.3.2 Working Group and Task Force Reports

Working group on PC57.162 – Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors – Tom Prevost

The meeting was called to order at 11:00 am. Attendance: Members: 46 of 90 , 51%, (Quorum was achieved) Guests: 112 Following the establishment of a quorum, the following business was completed:

• Approval of Agenda • Approval of Minutes from Spring, 2017 • Call for Patents • Review of PAR Project Scope Project Purpose

• Chair’s Remarks PAR Extension request; The chair informed the meeting attendees that the PAR

for this project expires at the end of 2017. A request had been submitted to NesCom for a three year extension.

Project Timeline; Assuming that we will be granted the extension for the project we will need to complete the document in two years (by the end of 2019) in order to complete balloting by the end of 2020.

Document Status; The document is approximately 50% complete. Several chapters are finished while there are other chapters that have very little complete. The chair reiterated the need for all chapters to have a draft before the next meeting,

Task Force Reports

Task Force 1 – Terminology and Definitions Task Force Leader (Jeff Golarz) First draft is complete. Still looking for additional input from task forces. Task Force 2 – Measurement and evaluation of moisture-in-gas insulation parameters. Task Force Leader – Tom Melle Working on first draft.

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Task Force 3 – Measurement and evaluation of moisture -in – liquid insulation parameters. Task Force Leader – Claude Beauchemin

Working on first draft. Due to huge amount of effort to complete the revision of C57.104, for which Mr. Beauchemin is chair, the chair is looking for a new task force leader.

Task Force 4 – Measurement of moisture in solid insulation. Task Force Leader – Ron Hernandez Draft is complete. Task Force 5 – Estimation of moisture in solid insulation Task Force Leader George Frimpong Draft is complete. Task Force 6 – Inferring of moisture in solid insulation from measurements conducted in liquid or gaseous medium. Task Force Leader – Valery Davydov First draft is complete. Task Force 7 – evaluation of aging and end of life of solid insulation parameters Task Force leader – Roger Wicks Waiting on first draft. Task Force 8 – Factory/workshop application of knowledge on moisture; establishing baselines Task Force leader – Poorvi Patel First draft is complete Task Force 9 – Field application of knowledge on moisture Task Force leader – Jim Thompson Waiting on first draft. Task Force 10 – Moisture equilibrium charts Task Force leader – Tom Prevost Waiting on first draft.

This meeting adjourned at 12:15pm

Working Group for Application of High-Temperature Materials IEEE P-1276 – Roger Wicks

A. Welcome & Chairman's Remarks R. Wicks

Roger opened the meeting at 3:15 pm with a brief description of the status of the Working Group.

B. Circulation of Attendance Rosters J. Arteaga

Circulated

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C. Attendance for Quorum J. Arteaga

24 members were in attendance meeting the quorum requirement a minimum of 19 members. 47 guests were presented and 8 requested membership.

D. Approval of Spring 2017 Meeting Minutes – New Orleans, LA J. Arteaga

Marion Jaroszewski made a motion to approve the minutes and Bruce seconded it. The group unanimously approved the minutes.

E. Approval of agenda

Alan Sbravati made the motion to approve the agenda and Marion Jaroszewski seconded it. The group unanimously approved the agenda.

F. Patent Disclosure R. Wicks

There were no issues related to Patent Assurance brought up by attendees in the meeting.

G. Discussion R. Wicks

Chair presented the results of testing using the sealed tube method with a pressure relief device rated at 10PSI, and a 3 point evaluation as outlined in std. C57.100. It was noted that the ratio of materials utilized for the test has an impact in the results. The ratio of materials for distribution transformers results on a tensile strength retention of 16% to 20%, as with ratio of materials for power transformers this value is between 11% and 13%. The results showed that the thickness of the material used for insulation does not have as much of an effect on the results.

Alan Sbravati indicated that in his experience the sealed tube without a pressure relief device represents better the condition of degradation due to the catalytic effect under pressure, which has a large effect, and suggested that the use of bellows can compensate for the changes in pressure. The chair mentioned that in the transformers there is a pressure relief device making the use of the relief device in the sealed tubes more representative of the conditions of the transformer in operation. Also, the use of bellows make the test more difficult to conduct.

John Luksich and Roger Wicks will provide examples for Clause 8, loading guidelines, using the methodology described in C57.100 to provide the loading guidelines for other fluids and insulation systems.

It was commented that the material compatibility of materials, like gaskets, made need to addresses similarly as in standard ASTM D3455. Roger Wicks indicated that this standard addresses the chemical compatibility of the insulating materials with mineral oil at lower temperatures (100˚C), but does not cover their performance at higher temperatures. Tom Golner mentioned that these materials are already covered in this document.

Alan Sbravati requested to include overload guidelines for the performance of de-energized tap changer and bushings. Roger Wicks indicated that due to time constrains this requirement may not be include now if the material is not already available.

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Marion Jaroszewski made the motion to made a straw ballot within the WG starting by November 17 using the current document with the changes discussed today. David Sundin seconded the motion and the group approved it unanimously. The significant changes discussed included combining Clause 4 and 7, incorporating a generic loading guide method using the aging example from IEEE C57.100 and incorporating the loading guide from IEEE 1276-1997 (aramid in mineral oil) and an updated version of the loading guide on natural esters into an informative annex linked to this method described in the main body of the document. Additionally, some of the information in the Annex on materials in the Annex will be condensed as no work has been done on this section.

A ballot resolution group formed by Roger Wicks, Marion Jaroszewski, Clair Clairborne and Alan Sbravati will review and resolve the ballot results and present the resolution the WG for approval and proceed to have a vote at the subcommittee level to allow us to proceed to have a sponsor ballot.

It is expected to complete this process before October of next year, before the current guide expires.

David Sundin made a motion to adjourn the meeting, Bruce Forsyth seconded the motion, all members approved it, and the meeting adjourned at 4:30 PM.

Working Group on C57-119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings – Gael Kennedy

The document continues to undergo ballot resolution. It is still on track to be completed prior to the end of 2018. This working group did not meet during the Louisville Conference.

Submitted by: Gael R Kennedy

Working Group on C57-91 IEEE Guide to Loading Mineral-Oil-Immersed Transformers– David Wallach

A. Welcome & Introductions

B. Rosters were handed out for attendance. The AMS membership contains the roster from the prior PAR (244 names). All prior members have been rolled back to guest status and attendees can request membership. Attendance at this meeting was 96 signing in on rosters (118 on RFID) with 44 attendees requesting membership.

C. The meeting agenda was reviewed and approved.

D. The call for patents was made and no applicable patents were identified.

E. The chair informed the group that the PAR for this guide was valid until Dec 31, 2021. The plan was work on draft revisions in 2018 and 2019 with a view of keeping 2020 free for finalizing draft and going for a start ballot.

F. There was good deal of discussion and suggestions to include transformer rating, condition based approach and include moisture and DGA scoring factors in the C57.91 guide.

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G. There was discussion about including other liquids like esters. One member suggested the WG consider including other liquids like esters but the overall majority of members felt that we keep the guide restricted to mineral oil only.

H. Jason Varnell of SPX and Javier Arteaga of ABB suggested we include overloading guidance on major components like leads, DETC and bushings.

I. Alan Sbravati of Cargill suggested we provide guidance on use of fiber optic based hot spot temperatures to the guide .

J. One member suggested we remove 200% overload capability from the guide.

K. One member felt that Table 8 includes transformer design information and should not be in guide and cautioned to look for similar data in the guide that needs to be removed while revising the guide.

L. Sasha suggested we look at distribution loading guidelines of utilities by conducting a survey.

M. One member suggested we harmonize loading with C57.163 guide.

N. Action Items:

1. We are looking for a WG vice chair. Five attendees offered their names for this position and the chair will make a selection.

2. The chair will request the present document in Word format to begin editing before the next meeting.

3. The request was made for volunteers to consider the list of proposed focus areas discussed this meeting to begin work at the next meeting.

O. Meeting was adjoined.

P. The next meeting of this WG will be held in Pittsburgh, PA.

Working Group on C57-165 IEEE Guide for Temperature Measurements for Liquid Immersed Transformers and Reactors – Phil McClure

The Chair called the meeting to order at 9:30 am and welcomed the attendees to the inaugural meeting of the working group. A brief summary of the mission of the group was given. The attendees were asked if any of them were aware of any patents that may be essential to any aspect of the work we will be doing and if so, that they must inform one of the officers in order that IEEE may be notified. The rosters were circulated. Prior to the meeting six persons expressed interest in the group and those persons were given membership. A roll call of those persons was made, but only two members, including the Chair, were in attendance. Since there were no plans to conduct

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business, it was not necessary to have a quorum. There were 61 total attendees comprised of 2 members, 32 persons requesting membership and 27 interested persons. The Chair called for volunteers to serve as the Vice Chair and Secretary, which resulted in four persons expressing interest. A summary outline of the Guide was presented by the Chair and a good discussion was had. It was explained that much of the work that had been done by the Task Force on Winding Temperature indicators will be updated if necessary and used in this guide. It was further proposed to put the reasons and recommendations for particular temperature measurements in the normative sections and put more tutorial instruction in the annexes. The group then discussed the scope of its mission. The Chair thought that the only potentially contentious term in the paragraph related to the meaning of measurements. The debate revolved about the tense of measurements; whether only measurements that are presently being made, or had been made in the past would be a limiting factor, or whether projections of future measurements, often referred to as predictive valuation or dynamic ratings, should be included. One attendee thought it was important that the group consider including it. While acknowledging that predictive valuation has considerable merit, the consensus of the group was that it should not be included in our work. It was pointed out that the loading guide contains equations that had been used for predicting load response for many years and that may be best left to other groups to include in their work. Having no more business to discuss, the Chair adjourned the meeting at 10:40 am.

Task Force for Annex B of C57.154 for High Temperature Insulation Systems – Robert Thompson.

Meeting was called in order by chairman Bob Thompson at 3:15pm

Members in attendance: Robert Thompson- Chair, Jinesh Malde – secretary, Bruce Forsyth, Sheldon Kennedy, Tom Prevost, Alan Sbravati, Patrick McShane, Sam Sharpless, Jeff Valmus, Alonso Castillo

Guests: John Luksich, Rick Marek, Brian McBride & Barry Menzies

Prior to the meeting, minutes from the previous meeting was forwarded to the group.

Scope: This TF was tasked to evaluate the content of C57.154 Annex B, Temperature Limits and to specifically recommend the disposition of Clause B.5 to the Insulation Life Subcommittee. The TF was not authorized to make any changes to Annex B or to take any other action.

Background: C57.154 Annex B Clause B.5, titled Temperature Limits, proposed equations and alternative tables to the body of the C57.154 standard based on curves composed of historical test data, which are incorporated in the annex. A presentation was made at the WG for the revision of IEEE Std 1276 in the Fall of 2016 that presented these curves without the mineral oil comparison data points. The claim was made that this data was insufficient to define such equations and alternative tables. The presentations further recommend the removal of Clause B.5 from the annex. In consideration of this request, the Chair of the

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Insulation Life Committee requested that a taskforce be formed to evaluate this request and make a recommendation to the Subcommittee.

The chair opened the meeting restating the purpose of the meeting and possible outcomes from the meeting being:

1) Recommend that C57.154 Annex B be flagged for review at the next revision of the standard.

2) Recommend no action

3) Any other recommendation from the meeting.

Rick Marek was invited to present the issue that forms the basis for the taskforce. He wanted the technical amendment to remove clause B.5 in Annex B of C57.154 and associated references. The reasoning for this was that the tables in the document were based on the procedures of the IEEE C57.100-1999 and some of the data was estimated through extrapolation. A claim was made that the information from the Annex was being used as normative rather than informative. A copy of his presentation is attached to the minutes of the Working Group meeting.

John Luksich made the counter reasoning that the data was good because it was based on several ageing tests and the tests were done in same procedure as mineral oil. There was no requirement at the time when the data was generated to follow 2011 revision of IEEE C57.100 standard.

Tom Prevost wanted to know why the taskforce was not in the main schedule of the IEEE transformer working group meetings. Sheldon Kennedy mentioned that Greg Anderson had it off schedule but the taskforce meeting was announced during Monday’s opening session of the transformer committee meeting. The intention was to have one TF meeting to come to a decision on the recommendation to the subcommittee.

Alan Sbravati and John Luksich presented on “Validation of Annex B Ester Liquid and Insulation”. The presentation was focused on aging test done in natural ester and mineral oil insulation system with thermally upgraded Kraft paper and non-thermally upgraded Kraft paper. Unit life equation and normal life endpoints were used to plot the tensile strength and DP graphs of data from various aging tests. Alan mentioned that new data available to be added to the current data. The new data will be published next year in the EIC 2018 conference. Addition of the new data will show that the current natural ester curves in Annex B are more conservative. A copy of the presentation is attached to the minutes.

Additional discussions:

Rick Marek mentioned the life curve of thermally upgraded Kraft and non-thermally upgraded Kraft was different. John Luksich said that by using the unit life equation, the slopes of non-thermally upgraded Kraft and thermally upgraded Kraft were parallel.

Barry Menzies inquired whether the natural ester ageing curves apply to all natural esters to which Alan responded that it applies to all natural ester liquids but not synthetic ester liquids.

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Because the current version of C57.154 expires in December of 2022, a PAR was going to be opened in the near future so a consensus was formed that the Annex B should be discussed when the PAR opens.

Motion was made by Bruce Forsyth that: “Annex B of IEEE C57.154 standard should not be opened for amendment and recommendation is for the subcommittee to take steps to open the IEEE C57.154 standard for revision”.

Motion was seconded by Jeff Valmus.

In favor: 9

Opposed: 0

Abstained: 0

Chairman Thompson adjourned the meeting at 4:30pm.

H.4 Old Business

Mr. Robert Thompson presented the work of the “C57.154 Annex B Clause B.5 Recommendation” working group. Mr. Rick Marek provided a presentation explaining his concern that thermal class data in C57.154-2012 Annex B regarding cellulose in ester was based upon insufficient data. Mr. Alan Svarti provided a presentation supporting the C57.154-2012 Annex B data. Mr. Thompson provided the working group’s recommendation; “Annex B of IEEE C57.154 standard should not be opened for amendment and recommendation is for the subcommittee to take steps to open the IEEE C57.154 standard for revision”.

Robert Thompson made a motion to open IEEE C57.154 for revision. The motion was seconded by Bruce Forsyth. After an extended discussion, the motion was called for a vote and it carried with 0 against and 1 abstention. Mr. Marek will submit the PAR application as called for in the motion.

H.5 New Business There was no new business

H.6 Adjournment Hem Shertukde made a motion for Amendment. Sanjib Som seconded the motion and it carried by acclamation with no objections.


Samuel L. Sharpless Secretary, Insulation Life Subcommittee

Annex J Performance Characteristics Subcommittee

November 1st, 2017 Louisville, KY, USA

Chair: Ed teNyenhuis Vice Chair: Craig Stiegemeier Secretary: Sanjib Som

J.1 Introduction / Attendance

There were 78 of the 97 PCS members in attendance so quorum was achieved (80% in attendance). In addition, 87 guests were present at the meeting, of which 32 were first time attendees. The total attendance at the meeting was 165. There were 21 guests who attended previous meetings that requested membership - they will be reviewed and added before the Spring 2018 meeting in Pittsburgh if they meet the membership requirements.

The Vice-Chair distributed rosters for the seating arrangement in the room.

J.2 Chairman’s Remarks

The Chair introduced himself, the vice–chair and secretary and provided the below updates and comments.

• 2018 PAR’s

– P60076-16 IEEE/IEC Wind Turbine Transformers – C57.158 Tertiary/Stabilization Windings – C57.110 Non-sinusoidal Load Currents – C57.21 Shunt Reactors

• 2019 PAR’s

– C57.105 3-ph Transf. Connections – C57.109 Through-Fault-Current Duration

• 2020 PAR’s

– C57.164 Short Circuit Withstand Guide – C57.18.10 Semiconductor Rectifier Transformers

• 2021 PAR’s

– C57.142 Transient Guide – C57.32A Neutral Grounding Devices amendment – C57.123 Loss measurement guide

• C57.120 Loss Evaluation Guide (is due in 2020)

• C57.133 Guide for Short Circuit Testing (Expired)

• C57.136 Sound Abatement Guide (2018 – will let expire)

• C57.149 SFRA Guide (2022)

• C57.159 DPV Transformers (2026)

• C57.32 Neutral Grounding Devices (2025)

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• WG & TF Chairs should keep your web pages up to date – review regularly and send any files to post to Sue

• 9 “Corresponding Members” are counted as “Guests” in terms of attendance for a quorum

• Requests for membership will be granted after the meeting if you’ve made the past 2 or 3 of the last 5 meetings

• PCS now has 97 members after a review of the Spring 2017 meeting attendance, along with the 4 previous meetings

• A meeting quorum will be reached if 49 members are in attendance

The below 14 Guests requested membership at the Spring 2017 meeting and have attended the past 2 or 3 of the last 5 meetings. They have been added as Members for the Fall 2017 meeting:

Bill Griesacker John K. John Stacey Kessler Egon Kirchenmayer Raka Levi Tim-Felix Mai Aniruddha Narawane Sanjay Patel Hakan Sahin Amitabh Sarkar Steven Schappell Jason Varnell Joe Watson Joshua Yun

The below 6 Guests requested membership but have not participated in the past 2 or 3 of the past 5 meetings. If present today and still request membership, these Guests will become Members at the Spring 2018 meeting

Florin Faur Reto Fausch John Herron Mohammad Iman Alexander Kraetge Emilio Morales-Cruz

These 10 Corresponding Members are being counted as guest status to support reaching the meeting quorum. They continue to receive communications and their guidance for the working group is most welcome.

Donald Chu Larry Coffeen Jerry Corkran Alan Darwin Richard Dudley John Lackey Tamyres Machado Junior Dennis Marlow Paulette Powell Loren Wagenar

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Current breakdown of the Subcommittee:

97 Members 10 Corresponding Members (counted as guests) 97 total members; 49 are needed for a quorum

J.3 Approval of Agenda

The Chair presented the agenda and requested if there was any objection to unanimous approval of the agenda - hearing none the agenda was unanimously approved. The agenda had been sent to the members by email several weeks prior to the meeting

J.4 Approval of Last Meeting Minutes

The Chair presented the minutes of meeting held in New Orleans, Louisiana USA on April 5th 2017 and requested if there was any objection to unanimous approval of the agenda - hearing none the minutes was unanimously approved. The minutes had been sent to the members by email several weeks prior to the meeting

J.5 Minutes from Working Groups and Task Force

The following WG and Task Force reports were received (the reports are appended later). • WG on Tertiary/Stabilization Windings PC57.158 E. Betancourt • TF on LTC Field Tests M. Ferreira • TF on PCS Revisions to Test Code C57.12.90 H. Sahin • WG on C57.109 - Through-Fault-Current Duration V. Mehrotra • TF on Audible Sound Revision to Clause 13 of C57.12.90 R. Girgis • WG on Non-sinusoidal Load Currents C57.110 R. Marek • TF on PCS Revisions to C57.12.00 T. Ansari • WG Shunt Reactors C57.21 S. Som • IEEE/IEC WG Wind Turbine Generator Transformers, P60076-16 P. Hopkinson • WG on C57.18.10 Semiconductor Rectifier Transformers S. Kennedy • WG 3-ph Transf. Connections C57.105 R. Verdolin • WG on HV & EHV Transients C57.142 J. McBride • WG Short Circuit Design Criteria C57.164 S. Patel • TF on Neutral Grounding Devices PC57.32 S. Panetta • WG on Loss Measurement C57.123 E. teNyenhuis

Below are highlights that were discussed at the PCS meeting:

1) PC57.158 – document passed ballot with 88% return rate 2) During minutes for the TF on PCS Revisions to Test Code C57.12.90, the question “whether the

fluid used for in service should be used for in factory test” was raised by Steve Antosz as to whether this should be dealt with in PCS. Craig Stiegemeier commented that in the past when he was the chair of a TF that identified an issue that had an impact on other SC’s, a message was prepared suggesting the sections in the standard that should be considered for modification. This approach may help with resolving the fluid filling issue identified in PCS C57.12.90 Test Code requirements. The Chair stated he will discuss with Power Transformer Subcommittee.

3) IEEE/IEC WG Wind Turbine Generator Transformers, P60076-16Wind turbine – The guide was approved by IEEE balloting however there are now changes that IEC wants to make after it’s

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balloting that are likely not agreeable to IEEE. Several participants commented including Phil Hopkinson, Paul Jarmin and Casey Ballard. The WG group will have to review at the next meeting what changes IEC wishes to make. It may be that IEEE and IEC each publish a separate guide.

4) WGPC57.164- The draft of the technical paper should in the website in a few weeks pending author details.

5) PC57.164- Sanjay stated that two major points come in the way for joint effort with IEEE; they are annexure A and autotransformers.

6) PC57.123- Sheldon stated that the main point being discussed is the coefficient of resistance.

J.6 Unfinished (Old) Business

None

J.7 New Business and Motions

None

Ed teNyenhuis mentioned that this was his last meeting as PCS Chair. Craig Steigemeier will become Chairman of PCS starting at the next meeting.

Adjournment was proposed by Marcos Ferreira and seconded by Dan Sauer.

The meeting was adjourned at 4.15 pm.

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J.8 Minutes of Meetings of Working Group (WG) and Task Force (TF) Reports (all unapproved)

J.8.1 PCS Working Group on Guide for Application of Tertiary and Stabilizing Windings PC57.158 Performance Characteristics Subcommittee

IEEE / PES Transformers Committee October 30, 2017 9:30 AM

Louisville Downtown Marriot Hotel, Room: Marriot 7-9 Louisville, KY, USA

UNAPPROVED MINUTES

The WG PC57.158 met on Monday October 30th at 9:30 AM with 16 Members and 33 Guests present. The current Membership is 32 so we did have a quorum. The following 6 individuals requested membership to the WG.

Hamid Abdelkamel Ameren Markus Schiessl Starkstrom-Geraetebau GmbH Muhammad Ali M. Cheema Northern Transformer Raj Ahuja Raj Ahuja Consulting Rodrigo Ronchi WEG-Voltran Stephen Schroeder ABB Inc.

1. Old Business

After introductions and approval of the New Orleans Minutes (H.Flores, Kushal Sing), the Chair explained to the group that the WG’s document has already passed the balloting stage, and that no new members have been considered since the last WG meeting.

The Chair mentioned that the WG´s PAR ends December 2018, and that the Guide for Application of Tertiary and Stabilizing Windings is already in the agenda for the next RevCom meeting, to take place by December 5th.

The Chair discussed the results from the of recirculation of Draft 7A which at an 88% return rate, included 107 affirmative votes and 12 abstaining votes; total eligible balloting members were 119.

Source files were requested for 12 of the 33 diagrams in the draft that were embedded as pictures. The Chair took note of members who offered support to complete the drawings.

Next agenda item was the discussion on the agenda and objectives for an upcoming tutorial, once the document is approved. Several WG members and guests volunteered to participate. A couple of new subjects were brought up to include in the Tutorial, as the so called “high impedance tertiaries”; it was clarified that all new subjects will only be mentioned at the final part of the tutorial, as opportunities for a future work.

With no new business, the meeting was adjourned at 10:20 AM.

Volunteers were requested to prepare material for a 1 hour and 15 minutes tutorial, according to following subjects:

1- Need of a Guide for Application of Tertiary and Stabilizing Windings (Raj Ahuja, Shankar Nambi)

2- Highlights of the approved Draft -Enrique

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3- Function of stabilizing windings in Y-Y transformers and differences vs. Tertiary Windings (Sanjay Patel)

4- Systems Engineering – (Pending to confirm volunteer)

5- Recommendations for application of Stabilizing windings (S.Walia, K. Vijayan)

6- Further Work (High impedance tertiaries, protections, GIC, dielectric performance etc.) (Sanjay, Enrique, Kiran)

With no new business brought up by the Group, the meeting was adjourned at 10:20 AM with a motion from Sukhdev Walia and seconded by Hugo Flores.


Enrique Betancourt Brian Penny, WG Vice-Chair Marnie Rousell

WG Chair WG Vice-Chair WG Secretary

J.8.2 PCS Task Force on OLTC Diagnostics / Testing

Performance Characteristics Subcommittee

IEEE / PES Transformers Committee

Oct 30, 2017 9:30AM Louisville Marriott Downtown

Louisville, KY, USA

The PCS Task Force on OLTC testing / diagnostics met on Monday, April 3, 2016. The Chair Marcos Ferreira called the Group to order at 9:30am and explained the purpose and scope of the TF. This is the first meeting of the group so everyone present at the meeting was considered members for Quorum. There were total 68 individuals present, 38 requested membership. All that requested membership were accepted so the group has 38 members.

The motion to approve the agenda was initiated by Ed teNyenhuis and seconded by Dave Geibel. No discussion took place and agenda was approved unanimously with no comments or amendments. The agenda Items were covered as follows: Chair initiated the meeting with presentation Joe Foldi requested to clarify if it is a test guide for transformer manufacturing and the field. The Chair stated that the subject test can be done in factory or in the field. These are diagnostics tests. The Chair requested Vice Chair Raka Levi to present the principle of DR&M testing. Peter Zhao questioned the test method and application. The Chair explained that the test is very helpful in the field. The purpose of the Guide is to provide a tool to diagnose if there is any issue before opening the OLTC. The Vice Chair continued the presentation and covered a different method called Vibro Acoustics. After the presentation, Axel Kramer raised the concern about the title of the task force and suggested to change it to more relevant to topic covered in the meeting.

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Charles Sweetener suggested focus on the general guide for testing and to harmonize it with the Field test guide C57.152. The Chair mentioned that the intent is not to restrict to field testing but for in general. Rich Simonell disagreed and suggested that the test is useful for the field but we cannot make it mandatory for factory test. So it is more related to field than the factory. Raka Levi mentioned that he felt there is a need for the guide but we need to agree on the title. Don Platts highlighted several technical points: the IEEE has never defined the new technology and we do not want the guide to endorse the new idea. So finalizing the guide without clearly understanding of Scope, purpose and process will be too early. There is confusion about the scope of the task force. Ali Naderian suggested to survey the scope and purpose of the task force and then to discuss the result in next meeting. Raka Levi – mentioned that he felt there was a need for the guide, but we need to agree on the title. Also, we need a guide to standardize the method from many different are using as of today. Apollonia Martinez - it is very helpful to have these type of guides available to filed engineers to refer to. Charles Sweetener – Let’s discuss the purpose and scope of the TF. Roger Fenton agreed with the idea of having the guide and to keep it open to accept the new method in the future. It is necessary to take advantage of the experts and get the guide completed rather than waiting for another 10 years. Raka initiated the Motion but Craig Stiegemeier mentioned motion has to come from floor not from an official. Charles Sweetener initiated the motion “Define the scope, objective, and outcome of the task force with the road map, timeline and the summary of deliverables”. John Herron seconded it. Ed teNyenhuis confirmed the motion is in line with PCS direction. The Chair opened the floor for discussions. There was no further discussion. The motion passed unanimously. Meeting adjourned at 10:45AM. Respectfully submitted by Marcos Ferreira Raka Levi Tauhid Ansari Chair Vice Chair Secretary

J.8.3 Task Force on PCS Revisions to C57.12.90 October 30, 2017, 11:00am-12:15pm

Marriott VI Room, Marriott Hotel; Louisville, Kentucky USA Hakan Sahin, Chairman; Craig Stiegemeier, Secretary

The TF Chair called the meeting to order at 11am. The chair went through a review of the purpose of the task force and the proposed agenda for the meeting. Fall 2017 Agenda 1. Administrative

A. Statement of Purpose B. Introductions and attendance sheets C. Approval of agenda

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D. Approval of minutes of meeting – Spring -2017 2. Old Business

A. Changes to C57.12.90 on the Load Tap Changer performance voltage test and current test 3. New Business 4. Adjourn The Chair asked if any changes to the agenda needed to be made or if anyone had new business. Stephen Schroeder requested time for two new business items. The Chair confirmed a motion had been made and seconded to approve the agenda – there was unanimous approval. Rodrigo Ronchi motioned, Kenneth Skinger second for approval of the minutes after the Chair covered a summary of the Minutes of the Spring 2017 New Orleans meeting were reviewed. The minutes were approved unanimously. The task force moved on to old business, which is the LTC performance voltage test and current test to be included in future versions of C57.12.90. There were 43 of the 61 TF members in attendance making this meeting “official” as a quorum of 70% was reached. In addition, 83 guests were present at the meeting, of which 27 were first time attendees. 21 of the guests who attended previous meetings requested membership on the Task Force. They will be added if they meet the membership requirements before the Spring 2017 meeting. A proposal to sections 8.7 and 9.6 was developed and presented to the group at this meeting. They are: 8.7 On-Load Tap Changer End to End Voltage Test In order to verify the performance of a transformer that has a load tap changer (LTC), the LTC shall be operated through one end to end to end (from one extreme tap to the other extreme tap and back) with the transformer energized at rated voltage. The test may be performed in intervals if needed, but it is a requirement that the transformer be energized at no less than rated voltage for each tap change, and the applied voltage can be adjusted to the rated voltage of the tap position. The transformer shall be observed during this test and the operator shall identify that the sound during the tap changing operations was either normal or abnormal. Note that with some types of tap changers, there will be an abnormally loud sound if components are not connected properly. The transformer will have passed this test if the tap changer operates normally, with no abnormal sound, and no abnormal observations in the test control system which may cause the test circuit to trip. Oil samples taken from the diverter compartment of vacuum type tap-changers, before and after the test, may show some increase of dissolved gases, which is due to current commutation, resistor heating and / or stray-gassing of the oil. The increase of the sum of H2, CH4, C2H6, C2H4 and C2H2 should not exceed 12 ppm for in-tank type LTCs and 6 ppm for compartment type LTCs. Note: During the operation of the change-over selector (reversing switch or coarse-tap selector), the sound can be slightly different. The Chair gave 3 minutes for those attending to read the above text to enable a discussion. The Chair then showed the following test for section 9.6. 9.6 Load Tap Changer End to End Current Test In order to verify the performance of a transformer that has a load tap changer (LTC), the LTC shall be operated through one end to end (from one extreme tap to the other extreme tap) with the transformer current at the top nameplate MVA rating. The test may be performed in intervals if needed, but it is a

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requirement that the transformer current be no less than 80% of the top MVA nameplate current for each tap change. The transformer shall be observed during this test and the operator shall identify that the sound during the tap changing operations was either normal or abnormal. Note that with some types of tap changers, there will be an abnormally loud sound if components are not connected properly. The transformer will have passed this test if the tap changer operates normally, with no abnormal sound and no abnormal observations in the test control system may cause the test circuit to trip. Oil samples taken from the diverter compartment of vacuum type tap-changers, before and after the test, may show some increase of dissolved gases, which is due to current commutation, resistor heating and / or stray-gassing of the oil. The increase of the sum of H2, CH4, C2H6, C2H4 and C2H2 should not exceed 12 ppm for in-tank type LTCs and 6 ppm for compartment type LTCs. Note: During the operation of the change-over selector (reversing switch or coarse-tap selector), the sound can be slightly different. The chair then opened up the meeting for discussion. The following members and guests came forward and made those comments: Steven Brzoznowski of Bonneville Power – Wanted to confirm that these are proposed routine tests for class 2 transformers. Steve Schroeder of ABB – thinks this should also apply to Class 1 transformers – basically any transformer with on on-load tap changer Joe Foldi, consultant – This came about as issues on site were found for larger transformers. Sam Mehta, consultant – this was a hot issue for voltage regulators, so a decision was made to just stop at Class 2. Steve Antosz, consultant – The class requirement comes from 12.00. This should just be for a procedure to perform the test. Krishnamurthy Vijayan of PTI Manitoba – Is this for both types of tap changers? Rainer Frotscher pointed out that this is for vacuum-type only LTCs. For non-vacuum determination of a problem is only the sound level. Tony Franchetti or PECO – Control voltage at 8F% should be added to the procedure. Someone from SPX – Questioned whether information is adequate for natural esters. Rainer noted that this is only for mineral oil. Dan Blaydon – BG&E – Would like to see a tolerance on the 80% voltage. Joe Foldi noted that impedance is changing across the tap range, so that’s why a minimum is specified. Dave Geibel – ABB – Gas sampling should be performed on LTC’s without a diverter compartment. Rainer agreed and said that the oil from the LTC should be taken from all compartments. Sam Mehta noted that testing should be performed on all LTCs. Pierre Riffon – would like a sentence for all oil type tap changers. He also wanted to understand the logic of the range of operation testing. Joe Foldi – since the tap changer could have a problem at any tap. That’s when it was agreed to test the complete operating range of the LTC. Jeff Ray – Pointed out that a minimum of 80 or 85% allows going from one end to the other without having to adjust the test set up. Don Ayres – We may want to align the current test here from the requirements of the heat run. The Chair asked for 10-15 volunteers who would review the text and come up with something that can help move the tests forward. Dave Geibel – Commented that he’s not aware of a test that sounds significantly different at 95% than 80%. New Business Steve Schroeder – two items

1. We should address the fact that a transformer must be tested with in the same fluid that it will be filled with in service. This is due to the fact that natural ester and mineral oil have very different properties. This is most critical for temp run and dielectric tests. Ed teNyenhuis suggested that

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by filling with regular oil may degrade the fire point of the final installation. Steve Antosz pointed out that from a practical/commercial/technical standpoint this is a good suggestion, but we need to make sure that this is the right TF for consideration.

2. For wye connected transformers with a neutral bushing brought out the winding resistance test currently is line to line. A bad neutral connection could be missed, and he suggests that line to neutral resistance should also be measured. The supplier needs to do something with winding resistance including the neutral.

There was agreement on both topics that they should become new business for the TF. We need a secretary for the task force with Craig Stiegemeier moving on to the PCS Chair role. Dan Sauer motioned and Ed teNyenhuis seconded to adjourn. All agreed and the meeting was adjourned at 11:56am. J.8.4 Working Group for Revision of C57.109

IEEE Guide for Liquid-Immersed Transformer Through–Fault-Current Duration Louisville, KY, October, 30 2017

Minutes of the Working Group Meeting The meeting was held on Monday October 30, at 1.45 pm and five of the six members were present and therefore there was a quorum. There were a total of 39 people present which consisted of 5 members and 34 guests. Three guests were granted membership per request. The meeting began with a patent call and there were none brought forward. After quorum was determined the Working Group unanimously approved the agenda for the current meeting as well as the meeting minutes from the Spring-New Orleans 2017 working group meeting. The working group chair then discussed the current status of the draft and ballot results. The response rate of the ballot was was 78% with an approval rate of 94%. There were 31 comments from the ballot. They were largely editorial (17) but there were some technical issues that will need to be addressed. Due to the comments from the ballot a ballot resolution group was requested to be formed and volunteers were asked to come forward after the meeting. The following people volunteered for the ballot resolution group:

1. Chair_______Vinay Mehrotra 2. Vice Chair___Hemchandra Shertukde 3. Secretary____Jason Varnell 4. Member_____Kiran Vedante

Member_____Weijun Li 5. Member_____Akash Joshi 6. Guest_______Muhammad Ali Masood Cheema 7. Guest_______Shankar Subramany

A motion was raised by Weijun Li to adjourn. Akash Joshi seconded the motion. The working group unanimously approved the adjournment. The meeting adjourned at 2:30pm. Respectfully submitted Vinay Mehrotra WG Chair

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J.8.5 Unofficial Minutes of Fall 2017 Meeting of TF “Audible Sound

Revision to Test Code C57.12.90”, in Louisville, Kentucky

The TF met at 1:45 PM, on Monday, October 30, 2017. Chairman Dr. Ramsis Girgis presided over the meeting. Secretary Barry Beaster assisted with the administrative duties.

Prior to the meeting, a survey was issued to members of the TF for inclusion of the NEMA tables in Annex C of C57.12.00, providing Reference Sound Pressure levels for Load noise in Annex C2, and a proposed text for modifications in Table 17 of C57.12.00 regarding reference to Annex C. In another mailing, a proposed meeting agenda along with the unapproved spring 2017 minutes were circulated to all members and guests of the last meeting.

After the spring 2017 meeting, the membership had been adjusted to 49 members. The meeting was attended by 31 of the 49 members and 81 guests for a total of 112 persons. A quorum was established after the meeting via a paper sign-in count and confirmed by the RFID tag in system. The unapproved agenda was presented without change at the meeting. The spring 2017 meeting minutes had no requested changes or corrections and was considered approved. There were eighteen requests for TF membership; which will be reviewed based on previous meeting attendance.

Chairman Dr. Ramsis Girgis presided over the technical portion of the meeting.

The first technical Agenda item presented was the inclusion of NEMA TR1 tables, for no load sound levels, into Annex C of C57.12.00. As agreed upon in previous TF meetings, these values represent transformers designed with regular grain oriented steel, high design core flux density levels, and no means of sound mitigation. In the returns of the Survey, TF members had several constructive comments on both Tables C1 and C2. For Table C1, the following was suggested:

1. Simplify and improve presentation of the notes under the Table 2. Correct an incorrect sound level number in the NEMA Table 3. Remove reference to the 55 °C and add the word “rise” 4. Add a note the “BIL level is for the High Voltage winding of the transformer” 5. Include a statement on Sound levels of 1-phase transformers

For Table C2, it was suggested to change the title as follows: I. Remove “Step Voltage Regulators” from the title since they are not covered by IEEE Std.

C57.12.00-2015 II. Replace “network transformers” with “distribution transformers”

All above suggestions were implemented and agreed upon unanimously.

Another previously agreed upon action item was to replace the formulas presently included in Annex C for calculating reference load noise Sound Power levels, with tables of corresponding Sound Pressure levels. This is because:

1. NEMA levels of no load noise are in terms of Sound Pressure levels 2. IEEE Standards deal with Sound Pressure levels not Sound Power levels

The next technical agenda item discussed was whether to use the Full through MVA rating or the 2 – winding equivalent rating of an autotransformer as a reference for determining the Table sound pressure levels for no load noise and load noise. The chairman presented data that showed that very few measured No Load sound levels and Load sound levels were slightly higher than reference levels when using the full MVA as reference. This was not the case when using the 2 winding equivalent power rating for reference. A lively discussion with contribution from manufacturers, consultants, and end users presented

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the pros and cons of having reference values either lower or higher than the tested values. To aid in the understanding, the Chairman explained the several factors that contribute to load noise. An unofficial hand vote agreed that the 2 – winding equivalent MVA would be more appropriate for No Load noise and the full MVA would be used for Load noise. After above modifications are made to Annex C, a resurvey of the membership will be made to assure all are in agreement with the improvements implemented before presenting these to the Performance Characteristics Subcommittee. During above discussion, the following items were raised: Mr. Joe Foldi stated that he expects that Load Sound levels would correlate with the reactive

power of the transformer. The Chairman indicated that he would not expect such a relationship but promised to examine this relationship using available test data.

Mr. K. Vijayan asked whether there is a difference in the final value of the total Sound level of a transformer if No load noise and Load noise are added in either of the following two ways:

o Adding the corresponding total Sound levels o Adding the corresponding Frequency components and then adding the totals of the

resulting frequency components. The Chairman promised to examine above using available measured data. Mr. K. Vijayan promised to do the same

A question was raised as to whether there is sufficient understanding in the industry of fan noise data and how to account for it in determining the total sound level of the transformer. The Chairman suggested that there might be a need to plan for a tutorial on that in a future Standards meeting.

The final agenda item was a report by Dr. Ploetner on the status of activities of the GIGRE WG: “Power Transformer audible sound requirements”. The purpose of this WG is to derive typical ranges of sound power levels of No load and load noise for specification purposes. The meeting was adjourned at 3:00 PM. Respectively submitted, Barry Beaster, TF Secretary

J.8.6 WG for Revision of C57.110

Fall 2017 Meeting, October 29 – November 2 Louisville Downtown Marriott Hotel, Louisville, Kentucky, USA

Chair: Rick Marek Secretary: Sam Sharpless PC57.110D6: Recommended Practice for Establishing Liquid-Immersed and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents No meeting was held this time since the document was just successfully balloted on October 19 with the following statistics:

• Ballot opened on September 19, 2017 • 92 comments with 53 that must be satisfied • 101 of 123 ballot pool responded meeting the 75% requirement with 82%

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• 5 negative votes • 4 abstention votes • 92 affirmative votes for a 95% approval

J.8.7 Task Force on General Requirements C57.12.00

Performance Characteristics Subcommittee

IEEE / PES Transformers Committee

October 30, 2017 4:45 PM Louisville Downtown Marriot Hotel

Louisville, Kentucky USA

UNAPPROVED MINUTES The PCS Task Force on General Requirements for C57.12.00 met on Monday, October 30, 2017. The Chair Tauhid Ansari called the Group to order at 16:45 and explained the purpose and scope of the TF. 52 Members and 82 guests were present, and as Task Force membership stands at 82 members, we did have a quorum and were able to conduct official business. The following 9 guests requested membership:

Akash Joshi Black and Veatch Babanna Suresh Southwest Electric Co. David Walker MGM Transformer Company Hamid Abdelkamel Ameren Liz Sullivan ABB Rhea Montpool Schneider Electric Rodrigo Ronchi WEG-Voltran Tim Felix-Mai Siemens Yong Tae Sohn Hyosung/HICO

The Agenda was approved unanimously, and the minutes from the New Orleans meeting were corrected according to comments made from Sanjay Patel, then the minutes were approved (Raj Ahuja/Stephen Schroeder), with no further comments or amendments. Agenda Items were covered as follows. 1. OLD BUSINESS

A. WG Item 104, Sec 6.1 – Discuss the P dimension that affects the interchangeability of bushings. (Keith Ellis)

As Keith Ellis did not attend the meeting, the Chair asked for a motion (Raj Ahuja/Dahram Vir) to remove the topic form the agenda. The motion passed unanimously.

B. WG Item 107, "Table 6 Row 9. Recommend all temperature rises be shown on NAMEPLATE, Top Oil rise, Average Winding Rise, and Hot Spot Rise" (Kipp Yule)

The subject came from the ballot resolution of C57.12.00. The Chair introduced the subject and opened the floor for discussion. Following comments were brought up. Joe Foldi: Considered requested temperature rise data as very important information, especially when applications deviate from standard conditions. Raj Ahuja: Requested data is already part of some users’ specifications. Sanjay Patel: Special ambient temperature is nowadays more frequently specified; for instance, 50ºC, and still 65ºC rise, which is inconsistent with C57.12.00. Joe Foldi: As the Nameplate is also considered the “rating plate”, it should say maximum temperature rises at the ambient temperature defined by standard C57.12.00. Sanjay Patel: Recommends working with

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temperature rises. According to C57.12.00, maximum ambient of 40ºC yields 120ºC hot spot for 65ºC rise. The Chair clarified that the proposal was to add only temperature rises (independent on ambient temperature). Further comments came from the Group. Shamaun Hakim: allowable rise can be dependent on ambient temperature. Babanna Suresh pointed out that the standard defines what is normal and abnormal. Juan Castellanos: Pointed add that C57.12.00 requires only compliance with 65ºC average winding rise, therefore top oil rise and hot spot rise are not required. Rich von Gemmingen: Requested temperature rises can be obtained from test reports; no extra information is necessary, especially if C57.12.00 is applicable Std. Ryan Musgrove: Extra information can be a source of confusion. His utility uses IEEE standards for loading procedures. Scott Digby: His utility uses test reports and consider insulation classes for loading of transformers. Brian Penny: Has a special specification, provide little info for field application, use test reports. Daniel Blaydon: uses test reports. A Motion (Craig Stiegemeier/ Babanna Suresh) was stated: not to add requested information about temperature rises to the nameplate. Motion passed with 41 votes in favor, none opposed. C. WG Item 108, Exclude Cabinet heater loss from the total cooling loss. (Mark Perkins) The chair presented current text in C57.12.00, where cabinet heater loss is added to ancillary equipment losses to calculate total cooling loss. The floor was opened to discussion. Brian Penny: Where else that loss to be considered? Stephen Schroeder: Cooling fans, liquid pumps and other ancillary equipment. Stephen Schroeder: The proposal seems confusing as stated. Auxiliary losses to be redefined if include space heaters. Rich von Gemmingen.: Control cabinet energy not required as part of guaranteed MVA. Forsythe: it is suggested to remove space heaters from auxiliary losses. Ed teNyenhuis: Clearly stated, just take out space heater loss from auxiliary losses. Matt Weisensee: Some case of running control cabinet heaters all the time. The Chair asked if further clarification was required from Mark Perkins, with no positive answer. A Motion (Raj Ahuja/Akash Joshi) was stated: to leave text in standard as is. The motion passed unanimously. D. WG Item 109, Clause 7.1.1 on short circuit: Need to clarify if multi-winding transformers

should have fault contribution from all un-faulted terminals, if not otherwise specified by customers (Sanjay Patel)

Sanjay Patel explained that some users request all non-faulted terminals to be considered as sources for short circuit current calculations. In his view, only sources with more than 35% load should be considered. The Chair requested comments from the Group. Shamaun Hakim: It can be the case for line to ground faults. K. Vijayan: Bus in-feed should be considered only if there is generation. Shamaun Hakim: It should also be considered when there is stored energy. Anthony Franchitty: Brought up an example of transformer with synchronous motors connected to tertiary, where they can contribute. The Chair asked for volunteers to rewrite the proposal, with response from Sanjay Patel, K.Vijayan and Babanna Suresh.

2. NEW BUSINESS The Chair asked for new business. With no new business brought up from the Group, the meeting was adjourned at 17:45 (Hugo Flores/Shamaun). Respectfully submitted, Tauhid Ansari Enrique Betancourt

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WG Chair Secretary J.8.8 IEEE Standard Requirements, Terminology, and Test Code for

Shunt Reactors Rated Over 500 kVA C57.21

Louisville, KY Downtown Marriott Hotel Room 5

Tuesday October 31, 2017 The meeting was called to order at 9:30 AM by the Chairman Sanjib Som. There were a total of 47 participants: 12 Members and 35 Guests out of which 6 Guests requested membership. The meeting was opened with the circulation of attendance roasters and call for potentially essential

patents. No patent issues were raised. 12 of the current15 WG Members were present and quorum was met. Meeting notes:

Meeting Agenda

• Meeting agenda, which was circulated among members and guests on October 29, 2017 by email, was presented to the audience.

• There were no objections or comments and the agenda was approved unanimously. Minutes from previous meeting

The minutes from the S17 meeting in New Orleans, which were circulated on October 12, 2017 by email, were presented to the audience.

There were no objections or comments and the S17 meeting minutes were approved. Old Business: The PAR expires December 2018. We need the document approved by SA before December 2018. Draft 1 is in circulation among members with comment submission date of 26th Nov. Members were requested to help in advancing the cause of the document. The goal is to get documentation submitted for SA ballot in Spring of 2018.

1. Draft 1 of the document was circulated among WG membership on October 27, 2017: 1.1. Feedback and comments must be provided by November 26th. 1.2. It is expected that a draft 2, including comments, be recirculated by December 26th, 2017.

2. Comments on Chris Ploetner were presented, Excel file summary:

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2.1. Pages 55-63, clause 10.6, Audible Sound test Section is not in line with latest revision of IEEE C57.12.90:2015. Should be replaced by provided new write up.

2.2. Page 19, Dielectric test levels are partly different from such given in Table 6 of C57.12.00, Review content and bring it in line with dielectric test Table 6 of C57.12.00. Shamum Hakim to complete this task. Also add a note on the source of the table for future reference as changes on the source standard C57.12.00 may occur.

2.3. Page 86, section 12.5, the information is not precise enough, re-write section as provided in the write-up. It was pointed out by Enrique Betancourt that single-phase reactors in the field cannot be separated for sound evaluation. Enrique to provide comment to the Chairman.

3. A motion to remove Annex E on gapped-core reactors from the standard was made by Luc Dorpmanns and seconded by Raj Ahuja as it does not fit the standard. It was approved by 8 votes in favor and 4 against.

4. Vibration measurement section 10.7.5.3: the text had been changed to include only the maximum

amplitude of 200 micrometers and align with IEC and CIGRE as per Luke Dorpmanns’ presentation in a past meeting, removing the average consideration of 60 micrometers. A motion was presented by Dharam Vir and seconded by Raj Ahuja to re-insert and keep the 60 micrometers average as a requirement. This was approved by a vote of 8 in favor, 2 against and 2 abstentions.

5. The Chair proposed the creation of a comment resolution group (CRG) - Raj Ahuja and Hem

Shertudke , Sanjib Som, Arturo Del Rio.

6. The group was encouraged to participate by providing comments as the deadline for the completion of the standard approaches.

No new businesses were presented and the meeting was adjourned at 10:45 am. Next meeting: Spring 2018, Pittsburg, PA, March 27, 2018. Respectfully submitted, Chairman: Sanjib Som ([email protected]) Secretary: Arturo Del Rio ([email protected])

J.8.9 IEEE/IEC WG Wind Turbine Generator Transformers, P60076-16 P. Hopkinson

Did not meet

J8.8.10 Working Group on Semiconductor Power Transformers – C57.18.10

Unapproved Meeting Minutes

Louisville Downtown Marriott Hotel, Louisville, KY Marriott 5 Room

11:00 am, October 31, 2017

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The Working Group met in the Marriott 5 meeting room

The Chair called the meeting to order at 11:06am

There were 19 members and 24 guests present. A quorum was present (19 of 27 members).

The patent call was given. Nobody replied with any patent issues.

The agenda was approved unanimously.

The minutes of the March, 2017 meeting in New Orleans were unanimously approved as written.

Old Business

• The Chair pointed out changes to draft standard and asked for comments to the changes on non-traditional harmonics and breaker/transformer interactions.

• Showed section on non-traditional harmonics. Don Ayers asked if this belonged in the Standard or in an annex. The Chair felt that it belonged in the standard because this is where the discussion of harmonics was.

• Moved old section on separating eddy current and stray losses (Section 8.6.2.f/g) to an annex and added a section from Subhas Sarkar on FEA methods. Joe Foldi raised questions about eddy losses in bus bars being treated as eddy losses versus stray losses. Chuck Johnson pointed out difference between eddy and stray losses in bus bars. Simulation may be the only way to determine these losses and their thermal impact. Don Ayers commented that section was more about winding temperature changes due to strays and eddy currents than things external to the winding. Paul Buddingh also agreed along these same lines. The Chair said that electrical design focused on core/coil. Chuck Johnson mentioned that 3D simulation for bus bars needed to be 3D. David Walker talked about bus temperature affected winding temperature measurement and that 3D simulation is needed. Joe Foldi mentioned that heatrun is at 60Hz and that behavior at harmonic frequencies are different and hard to simulate in a 60H heatrun. Calculating current distribution in bus bars is complex and hard to capture in a standard. And that new harmonic distributions are more complex and you can’t use previous experience as much as a guide for design. The Chair asked for volunteer to write up tutorial on this subject- David Walker, John John, Stefan Voss, and Sheldon Kennedy volunteered to help with writing a section on this. David Walker to compile and edit. Rick Marek suggested asking Hasse Nordman for input.

• The Chair asked if there were any comments about examples in Standard. No comments. On hold for now.

• Short Circuit on multi-phase winding. Nothing currently in standard. Should we add anything? In particular, drives are different in behavior. Jeremy Smith volunteered to work on this. And The Chair will also add input.

• Paul Buddingh previously asked about common mode voltage for high resistance grounded circuits. He commented that he isn’t sure where it fits in. David Walker mentioned that a lot of drives have stacked secondary windings and high common mode voltages. Need to consider effect on hipot testing. Phil Hopkinson asked if inverter transformers are in scope. The Chair said that they are. Phil has seen failures in inverter transformers in solar with 3kHz clock frequency in a 380-34.5kV transformer. Looked at transients at 380V winding and seeing 150V spikes at zeroes of waveform and a 50V spike at each 3kHz edge. 5-15% voltage spikes are outside of IEEE 519. Is it legitimate? Also see 5% spikes at 9kHz (3rd harmonic of clock). Do we need to anticipate this in transformer designs or should transformer designers push the inverter designer do better filtering? Better filtering in the future might help. However, we need to deal with what is currently present in the design of the transformer. We need to get spike/noise information from the inverter supplier. Abe Shahrodi- used to be an inverter designer. He said that is a common phenomenon with IGBT switching. Some inverter designers add filters. IEEE519 was relating to rectifiers and not inverters and levels reflect that. 3kHz is a low switching frequency. Can be 5-10kHz these days. They produce voltage transients on transformer inputs. The Chair mentioned that IEEE519 is more about power line effects not about transformer itself. Abe and Phil to

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submit comments. Phil thinks that transformers may need to be designed differently in the future to account for this. He feels that this should be mentioned in Standard. David W mentioned that drives also have similar spikes. Vijay Tendulkar- inverters and transformers have had problems with sine wave transients for a long time and they cause problems with motors being driven by the inverter. Switching spikes are seem on the sine wave outputs. Distance between inverter and motor (cable length) can exacerbate these problems. Phil H said filters are present but don’t perform very well. Phil has wave shapes as examples. Vijay mentioned that transients are in the nanosecond range and not microsecond range and a lot of HV filter capacitors are not very good at these frequencies.

• The Chair brought up traction duty transformers and that we should add references to 1653.1. Bill Whitehead to add reference to draft.

New Business:

• Dinesh Sankarakurup- Standard refers to 12.90 and 12.91 for LV impulse testing. Should we mention LV impulse testing because rectifier transformers with multiple LV sections are often tested in non-standard ways? Should we cover how you test this type of LV winding? What about testing in cases where secondary impedance was too low to get a good impulse waveform? No answer to these questions at this time.

With no further business, the meeting was adjourned at 12:11. The Working Group will meet again at the Spring 2018 meeting in Pittsburgh, PA

Chairman: Sheldon Kennedy Vice Chairman: Bill Whitehead Secretary: David Walker

J.8.11 PC57.105 – IEEE Guide for Application of Transformer Connections in Three-Phase Electrical Systems

Tuesday, October 31st, 2017 - (1:45 PM – 3:00 PM)

Chair: Rogerio Verdolin Vice-Chair: Benjamin Garcia

1. Attendance: a. Members: 10 b. Guests: 24 c. Guests requested membership 1 d. Total: 34 e. Quorum: Yes

2. Patents: Call for patents were made by the Chair. No patents were claimed by guests/members.

3. Meeting Called to Order: 1:45 pm on Tuesday, October 31st, 2017.

4. Spring 2017 Minutes Approval: A motion was made by Phil Hopkinson, and seconded by

Alejandro Macias, to approve the meeting minutes from the Spring 2017 meeting in New Orleans, LA. By unanimous vote, the minutes were approved.

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5. Fall 2017 Agenda Approval: A motion was made by Phil Hopkinson, and seconded by Alejandro Macias, to approve the meeting agenda for Fall 2017 in Louisville, KY. By unanimous vote, the minutes were approved.

6. PAR Status: PAR expires December 31st, 2019, which represents 2 meetings before we have to conclude the guide. The PAR was approved March 2015. The draft has to go to ballot at the end of 2018. We have to conclude our draft by fall of 2018.

7. Review Comments from Latest Draft Standard (V6): a. Clause 2 Normative References:

i. Email from Malia Zaman (October 25th, 2017): The editorial Group from the IEEE SA provided information regarding Clause 2. Normative References are any documents that must be understood to implement the standard. They do not have to be IEEE standards, nor do they even need to be standards (for example, sometimes manuals or other documents are listed and cited.

ii. Phil Hopkinson spoke to the team why IEEE references parent standards in the Normative Reference Clause. If a reference is made to another IEEE document within the body of the text, it should be included in the normative reference Clause. At a minimum, Phil believes that the parent documents (C57.12.00, C57.12.01) and test standards (C57.12.90, C57.12.91) should be included in Clause 2. The group also believes these documents should be listed as well.

iii. Sam Sharpless also believes that C57.12.10 and C57.70 should also be included since they were listed in the body of the text. Both of these documents will be added by the Vice-Chair.

iv. Phil Hopkinson has provided a list of IEEE standards that were included in Clause 3 and some references in the Bibliographic Clause as well.

b. The Bibliography: i. All internal company documents need to be deleted from the document. The

team believes that a documents needs to be readily available across the industry to be listed in this Clause. Internal company documents should not be included.

ii. Phil Hopkinson believes that the parent IEC standard should also be included in the biography. Phil will send to Ben the IEC standard number for inclusion into the standard.

c. Draft Standard Comments: i. Use words for delta and wye, not symbols. All symbols will be replaced with

words throughout the document. d. IEEE C57.105 Holes:

i. This document is intended to address all three-phase power systems BUT does not include 3 winding transformers. Team said that this will have to be addressed after revision during the next PAR.

e. Table 1: i. There are a few editorial errors in the revised changes; Ben Garcia and Giuseppe

Termini will work together to correct after the meeting. f. Clause 4.5.1:

i. Clear Cory Morgan’s Note per RogerTV

g. Clause 9.2: i. Ben will delete all highlighted Clause by Roger TV

h. OTHER: i. The symbol for SQRT should be used instead of SQRT

ii. Add Phil Hopkinson as a working member; he has been a main contributor

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No Old Business:

• None Next Steps:

• Clean up last revision based on comments from today’s meeting • Send members the clean version for their review • Send to editors the clean version concurrently for their review • Respond to all comments at the same time • Address all comments at the Spring 2018 meeting • Go to ballot

8. Meeting Adjourned at 2:45pm

a. Motion: John John b. 2nd: Sam Sharpless

Respectively submitted, Rogerio Verdolin, Chair Benjamin Garcia, Vice-Chair J.8.12 Working Group for the revision of C57.142

Louisville, KY Tuesday, October 31st, 2017 3:15

PM – 4:30 PM Marriott VI

Chairman – Jim McBride

Vice Chair – Xose Lopez-Fernandez Secretary – Tom Melle

1. Meeting called to order at 3:15 PM

2. Welcome and Chair’s Remarks

3. No essential patent claims made 4. Circulation of Attendance Sheets

82 Attendees were present 34 f 68 Members present (quorum was achieved)

5. No opposition to approval of Agenda and Minutes from Last WG Meeting.

6. Present working group status: PAR to move from TF to WG was approved in March 2017 and expires December 31, 2021. This work will be jointly sponsored by the Switchgear Committee.

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Administrative work and main meetings will take place at Transformers committee meetings, but the Transformers committee WG will receive contributions from Switchgear Committee.

7. Presentation was made on Special Terminated Lightning Impulse Tests by Pierre Riffon. The Chair will request posting of Pierre’s presentation on the WG website. The presentation was concluded and opened to questions:

Phil Hopkinson asked if increasing the series capacitance along the winding would help to reduced that existence of additional resonance frequencies during the STLI tests. Answer: yes

Will the papers detailing the AEP transient studies and conclusions be made available? Answer: These papers were reference in the TF paper and could be included in the revision of the guide

Roger Verdolin inquired regarding testing transformers with surge arresters attached. The details discussed are located within the presentation by Pierre Riffon.

Question: is a simulation calculation available for the stress on the transformer with the STLI? Answer: yes, different probe locations within the winding were measured, which can be extrapolated to different areas of the winding.

Question: when is the STLI conducted and can the waveshapes be compared? Answer: STLI testing occurs after standard impulse testing and the waveshapes of the same level can be overlayed for comparison.

Question by Phil Hopkinson: how effective would modeling of the DUT circuit be? The Chair answered that the magnitudes of transients will generally be well modeled, however, different modeling scenarios will greatly affect the modeling result of the phasing of the transformer. Point to point measurements inside of the transformer and modeling are both extremely difficult, however, the end result is relatively easy to determine (flashover or not).

Pierre: A good starting point is during the design review of the service condition in order to best determine if the test factory conditions should be adapted. The Chair noted that monitoring the test current could help to determine is series resonances are occurring internally in the transformer windings.

Question: is there any data on core saturation or condition? No additional information is available at this time from any known CIGRE papers. The data from the study in the presentation is proprietary from the transformer manufacturer.

Question: Should surge arresters always be installed on transformers potentially exposed to these transients? Answer: testing open line terminals without surge arresters or surge impedance shall be avoided as the produced stress could be too high.

8. Presentation question session concluded at 4:12 PM

9. The chair discussed the activity on the terminals that do not see the breaker strike directly via coupling through the transformer to the “non-pulsed” terminals. The same phenomenon can occur with lightning impulses on a lightly loaded transformer. It was also noted that (breaker) closings can often occur at the peak voltage of the waveform.

10. Per the Chair, a few options for mitigation include: Increasing the BIL, Changing the Operating

Sequences, Additional factory test requirements, and/or create additional simulations (models). The floor was opened up to comments:

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Regarding no-load energization, generally for all transformers excepting distribution transformers, there is no other option to energize under load.

From Phil Hopkinson: regarding early failures from impulse and the AEP response: BIL was increased 14%, Special impulse tests were added, and steep front test were added. After these requirement changes, the frequency of failure was significantly reduced. Phil believes that transformers with high resonance should be considered for the Special Impulse test. Adding shielding which diminishes the capacitance to ground and increases the series capacitance should help, therefore, design change may be a good form of protection. The chair noted that these additional requirements most likely resulted in the manufacturers making design changes which resulted in better field performance.

11. The TF to study Mitigation Methods, Factory Testing, and Field Service Conditions was opened to the Attendees and had the following volunteers:

Phil Hopkinson – TF Chair Pierre Riffon – TF Vice-Chair Akash Joshi – TF Secretary Mike Spurlock Hamid Sharifnic Shekhar Vora Jim McBride Waldemar Ziomek Pugal Selvaraj Dave Caverly John Hall Amitabh Sarkar Changir Sen Monty Goulkhah Rogerio Verdolin

12. Discussion of initial changes to C57.142 Table of Contents includes Integration of Neutral Grounding Information, Integration of Reactor Switching Information, and Mitigation Methods

13. Status of TF Paper Submission: IEEE Transactions Paper must be resubmitted to IEEE with additional author biographies to be added for significant contributors (authors). Biographies must be submitted by the following members:

Larry Coffeen Robert Degeneff Xose Lopez-Fernandez Philip Hopkinson Bertrand Poulin Pierre Riffon Angelica Rocha Michael Spurlock Loren Wagenaar

14. Future Business: It was noted the next Meeting should feature a discussion among members with

access to EMTP or other simulation/modeling software.

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15. Adjournment at 4:35 PM

J.8.13 WG PC57.164 (PCS)

Short Circuit Withstand for Transformers

Meeting Minutes – October 31, 2017 F17 meeting at Louisville, Kentucky USA Sanjay Patel, Chair; Raj Ahuja, Vice-Chair; Joe Watson, Secretary

The WG met from 4:45 PM to 6:00 PM at Marriott (7-9) Conference Room The minutes of the S17 New Orleans meeting were approved. The Agenda for the meeting was also approved. There were a total of 62 in attendance - 18 members and 44 guests, out of which 11 guests requested membership. There were 18 of 32 members in attendance, so we had a quorum. The attendance roster was circulated. The Chair opened the session, and asked Joe Watson to continue with the agenda. Following is the summary -

1. Kees Spoorenberg of Royal Smit, presented a brief technical presentation on Short circuit – describing the type of winding construction, specific points of concern/weak spots during manufacturing, different modes of failures, type of stresses and withstand. A few attendees asked if the presentation will be available to WG participants. Chair agreed to upload the presentation on the IEEE website, and password & log in name was provided to the attendees.

2. Joe Watson continued with the agenda and presented the current draft, and section 4 in detail, Fault current calculation method. Following comments were received at the meeting –

• Javier and Steve Schrader suggested that for the pre-fault voltage assumed for fault current calculations, reference shall be made to IEEE C57.12.00, and example may be provided at 105% pre-fault voltage, which was agreed.

• Enrique commented that one of the IEEE book also has the calculation method for the network model for fault current, and an effort to be made to ensure that there is no duplication, this was agreed.

• Ramsis Girgis commented that in this guide we should focus on the method of calculation of fault current and short circuit stresses. The withstand criteria should be left to manufacturer, since each plant & manufacturer have different manufacturing practice and process which is also one of the criteria for deciding the withstand. This was agreed.

3. Raj Ahuja and the Chair presented the brief overview of the short circuit calculation method and philosophy, which was well received by the group.

4. All the members were requested to review the current draft and provide their input within 2 months (by 12/31). Based on the input received from the group, a follow up conference call to discuss these comments will be scheduled in Jan./Feb. 2018.

5. Request for volunteers was made, Javier agreed to help on the section for calculations of stresses of Core Form transformers, other volunteers will confirm participation by email.

6. The meeting adjourned at 6:02 pm

J.8.14 IEEE C57.32 Amendment

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Louisville, KY

Tuesday, November 31, 2017 1:45 PM – 3:00 PM Marriott 10 room

Chair – Sergio Panetta

Vice Chair – Yann Elassad

1. Welcome and Chair’s Remarks. Objective: to determine the text of the amendment to the recently

approved IEEE C57.32-2015

2. Attendance: 7 total. Sheldon Kennedy, Ed teNyenhuis, Sergio Panetta, Yann Elassad, Tom Yingling, Sinan Balban, and 1 concerned individual, Frederico Turner.

3. Call to order motion by Yann, seconded by Tom.

4. Approval of Minutes motion by Yann, seconded by Tom. No Changes.

5. Motion to move paragraph 2. Normative references line 21 “CSA Std C22.2 No. 295-15 Neutral Grounding Devices” to Bibliography by Sinan, seconded by Sheldon. Motion passed.

6. Motion to add definition of Impedance Grounding to paragraph 3. Definitions by Sinan. Discussion was that IEEE C57.32-2015 Paragraph 3. “Definitions” is not within the scope of this amendment. Motion withdrawn.

7. Motion to change paragraph 4.1.3 Ten-minute rating line 19 from “routine test” to “type test” by Yann, seconded by Frederico (Approved by chair). Motion passed.

8. Discussion of proposed options A through E in paragraph 4.4 continued to the end of the meeting time. It was offered that interested parties could continue the discussion after the close of this meeting. It is desired by the members that the progress of this amendment could be continue and be resolved before the next spring 2018 meeting. A post meeting discussion was held with attendees Yann, Sinan, Tom and Frederico.

9. Motion to adjourn by Yann, seconded by Tom. Motion passed. Meeting was adjourned at 3:05 PM.

10. Next meeting Pittsburgh, PA March 25-29, 2018.

Respectfully Submitted, Tom Yingling 11/3/2017 Revised 11/7/17 J.8.15 Working Group C57.123 Loss Measurement Guide

Louisville KY – Oct 31, 2017 Ed teNyenhuis, Oct 31, 2017, Rev 0 The Working Group met at 9.30 AM in the Marriott Room 10 on Oct 31, 2017 The Chair, Ed teNyenhuis, led the meeting.

Annex J

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The following 7 persons were present and all accepted as members: Sam Mehta Anthony Franchitti Tauhid Ansari Andy Steineman Ramsis Girgis Ajith Varghese Ed teNyenhuis

This was the first meeting since receiving the PAR for revision of the guide

This guide was first published in 2002, revised in 2010 and there is now a PAR for revision that

expires in 2021.

There are several items in the guide that can only be reviewed by test engineers or loss measurement equipment suppliers. The Chair will ask for input from this group (Mark Perkins, Eddy So, Measurement International, Reto Fausch)

There is a new IEC guide on Loss Measurement that should be added as a reference in the revised

guide,

The present guide was reviewed during the meeting with the below comments / actions: Sections 3.1 to 3.5.2 will be reviewed by Ramsis Girgis

Section 3.5.3 should be reviewed by Bertrand Poulin – may not apply anymore

Section 3.7.2 could be moved to the annex

Section 4.1 to 4.3 are OK as is

Should ask the industry if phase angle correction is used anymore (this part could then go to

the annex). This will be done in a survey to PCS members.

Section 4.4.3.2.1 can be removed

Section 4.5.4 – Should ask the industry if anyone still uses this bridge method. This will be done in a survey to PCS members. Also ask Eddy So on this

Section 5 – Ask Eddy So to review and update

Section 6 – Ramsis Girgis will update this

Section 7 – Sam Mehta will update this

Section 8 – Tauhid Ansari and Andy Steineman will review this

Bibliography – Ask Eddy So and Bertrand Poulin to review this

Meeting was adjourned at 10.17 AM

Annex K

Page 1 of 25

Annex K Power Transformers Subcommittee

November 1, 2017 Louisville, KY Meeting Time: 1:30 p.m.

Chair: Bill Griesacker Vice Chair: Kipp Yule Secretary: Alwyn VanderWalt

K.1 Meeting Attendance

The Power Transformers Subcommittee met on Wednesday, November 1, 2017, at 1:30 PM. The attendance recorded indicated that 78 out of 110 members of the subcommittee were in attendance; a quorum at the meeting was achieved. A total of 217 individuals attended the meeting; 33 guests requested membership.

K.2 Approval of previous meeting minutes, and meeting agenda

The agenda for the meeting was presented and it was approved; see Attachment K.2.

The Chair requested a motion to approve the Spring 2017 New Orleans meeting minutes by unanimous consent. There were no objections to unanimous approval to the meeting minutes and they were therefore approved.

K.3 Chair’s Remarks The chair stated that the subcommittee vice-chair, Kipp Yule could not attend this meeting, and reiterated that Alwyn VanderWalt has agreed to take on the responsibilities of secretary for this subcommittee.

K.4 Working group reports

K.4.1 Revision of C57.12.10 IEEE Standard Requirements for Liquid-Immersed Power Transformers – Gary Hoffman The working group did not hold a meeting. The document is in sponsor ballot. They had three rounds of balloting and three rounds of recirculation. Balloting achieved 93% approval. The document is currently at RevCom.

K.4.2 Revision of C57.93 IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers – Mike Lau See details of meeting minutes in Attachment K.4.2. Mike Lau reported that a quorum was achieved with 34 members of 44 total present. The WG discussed the straw ballot results, which included 20 Approve, 11 approve with comments, and 3 disapprove. The WG chair made a motion to move to ballot C57.93 (v1.4), seconded by Joe Watson. There was no discussion on the motion. The motion was unanimously approved.

Annex K

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K.4.3 Revision of C57.125 Guide for Failure Investigation, Documentation, Analysis and Reporting for Power Transformers and Shunt Reactors – W. Binder No meeting was held.

K.4.4 TF to Compare C57.131-2012 Standard for Load Tap Changers and IEC 60214-1 ED 2.0 for consideration of recommending adoption of IEC standard (Also WG 60214-2 Tap-Changer Application Guide) - Craig Colopy See details of meeting minutes in Attachments K.4.4.1.

TF Comparison of IEC 60214-1 and IEEE C57.131: Craig Colopy reported that no meeting was held. This was supposed to be the first meeting following the approval of a new PAR, but the meeting was cancelled due to the inability of IEC to deliver a standard to a global organization such as IEEE. IEEE is presently working with IEC to establish a process to work on this document, so it is on hold for now. WG TC Application Guide IEC 60214-2: The TF was scheduled to meet on Thursday 11/2 afternoon and Friday 11/3. The document was sent for IEC CD circulation and IEEE ballot, the results of these were reviewed. The responses will be addressed and the document prepared for the next planned IEC CD circulation and IEEE ballot.

K.4.5 C57.140 Guide for the Evaluation and Reconditioning of Liquid-Immersed Power Transformers – Paul Boman Paul Boman reported that no meeting was held. The guide document was approved and released for publication. Thanks to Paul Boman, the working group members, and those involved with the revision of the guide.

K.4.6 C57.143 – Guide for Application of Monitoring Equipment to Liquid-Immersed Transformers and Equipment – Mike Spurlock See details of meeting minutes in Attachment K.4.6. A Quorum was achieved. The meeting focused on reviewing the scope of document. A motion to change the scope to include interpretation of monitoring results was defeated. A motion to change the purpose of the document was defeated. The meeting time was focused on reviewing scope and purpose with no motions regarding changes being passed in the meeting.

K.4.7 Revision of C57.148 Guide for Control Cabinets for Power Transformers See details of meeting minutes in Attachment K.4.7. Joe Watson reported that a meeting was held, but that a quorum was not reached. The TF reviewed comments for section 5 of the document following a straw ballot earlier this year.

K.4.8 Revision of C57.150 Guide for the Transportation of Transformers and Reactors Rated 10,000 kVA or Larger – Greg Anderson See details of meeting minutes in Attachment K.4.8. The minutes for both the Spring and Fall 2017 meetings were submitted. Greg Anderson reported that a meeting was held and a quorum was reached. During this meeting a guest presentation was delivered by a moving and rigging company. Committee leadership is encouraging industry participation to facilitate the updating of the guide. Future activities will include comparing a much lengthier CIGRE guide with the IEEE guide. Review of SFRA, mobile transformers, customs, permitting and various other topics will be included in the revision.

Annex K

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K.4.9 Development of PC 57.153 Guide for Paralleling Transformers - Tom Jauch No meeting was held.

K.4.10 Development of PC57.156 Guide for Transformer Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors - Peter Zhao Working group did not meet.

K.4.11 Development of PC57.157 Guide for Conducting Functional Life Tests for De-Energized Tap Changer Contacts - Phil Hopkinson Working group did not meet.

K.4.12 Task Force on V/Hz Curve – Joe Watson A formal meeting was not held, and meetings minutes were not submitted. Joe Watson reported that the TF determined that a guide is needed to address V/Hz issues to promote standardization. Joe Watson moved to form a TF to develop a PAR. The motion was seconded by Gail Kennedy. The motion passed with a few abstentions and none opposed.

K.4.13 Task Force on Condition Assessment Guide – Brain Sparling See details of meeting minutes in Attachment K.4.13. Brian Sparling reported that a meeting was held with 122 attendees of which 67 requested membership. The TF scope was discussed, after which a sub-task force with 22 members was created to develop and define scope to be submitted to SC before the S18 meeting. S18 meeting will include discussion about data quality as well as presentation from EPRI about their work in this regard.

K.5 Old Business

None

K.6 New Business The joint IEC/IEEE Standard requirements for phase shifting transformers document revision will start in IEC, this is IEEE C57.155. Paul Jarman made a motion to form a TF to determine the scope for revising C57.155. Motion was seconded by Craig Colopy and the motion passed unanimously. Peter Zhao requested closer cooperation between various WG’s and TF’s when updating documents so that bushings are considered. .

K.7 Adjournment The meeting was adjourned at approx. 2:20 pm

K.8 Attachments –Working Group Meeting Minutes and Agenda Attachment K.2 – F17 PTSC Agenda Attachment K.4.2 – PC57.93 Installation Guide Attachment K.4.4.2 – WG 60214-2 IEC Tap Changer Part 2 Application Guide Attachment K.4.7 – PC57.148 Control Cabinets Attachment K.4.8 – C57.150 Transportation Guide Attachment K.4.13 – Task Force on Condition Assessment Guide

Annex K

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Attachment K.2

AGENDA Power Transformers Subcommittee IEEE PES Transformers Committee

Wednesday, November 1, 2017, 1:30-2:45 PM Louisville Downtown Marriott Hotel; Louisville, Kentucky, USA

Bill Griesacker – Chair, Kipp Yule – Vice Chair, Alwyn VanderWalt – Secretary

1. Call to order 2. Distribution of attendance sheets 3. Determine quorum 4. Approval of previous meeting minutes 5. Chair remarks 6. Working Group and Task Force reports

a. WG Revision to C57.12.10, Standard Requirements ......................... G. Hoffman b. WG Revision to C57.93, Installation Guide ......................................... M. Lau c. WG 60214-1-57-131, Tap Changers (no meeting) ............................. C. Colopy d. WG Tap Changer Application Guide IEC 60214-2 ............................... C. Colopy e. WG Revision of C57.140, Life Extension Guide .................................. P. Boman f. WG Revision of C57.143, Monitoring Guide ...................................... M. Spurlock g. WG Revision of C57.148, Control Cabinet Standard .......................... J. Watson h. WG Revision of C57.150, Transportation Guide................................. G. Anderson

i. TF Transformer V/Hz Curves .............................................................. J. Watson j. TF Transformer Condition Assessment Guide ................................... B. Sparling

7. New business 8. Old business 9. Adjournment

Annex K

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Attachment K.4.2

Working Group to Installation of Power Transformers C57.93 Monday, October 30, 2017

1:45 – 3:15 PM Marriott 5

Louisville, KY Chairman Mike Lau Vice Chairman Alwyn VanderWalt Secretary Scott Reed The meeting was called to order at 1:48 pm by Chair Mike Lau. There were 33 of 44 members present. There were 38 guests and 30 visitors. A membership quorum was achieved. Agenda

1. Attendance Roster Sign In / Quorum Check 2. Patent Call 3. Approval of the Agenda 4. Approval of the Spring 2017 minutes 5. Items of Discussion

- Draft 1.4 – any outstanding issues? - Member’s vote on putting forward a motion at the Power Transformer Subcommittee

to request conducting a ballot on Draft 1.4 among the Subcommittee members 6. Unfinished Business 7. New Business 8. Adjournment

Due to the time constraints, attendees did not introduce themselves. The Fall 2017 Agenda was unanimously approved. The Spring 2017 Minutes were unanimously approved. Chairman Lau posted the Patent Claim. No notifications or comments were received. Chair’s Remarks: Chairman Lau reviewed the results of the straw ballot of draft version 1.4. There were 35 responses, 20 approved, 11 approved with comments, 0 disapproved, 3 disapproved with comments and I abstained. 175 comments submitted that require ballot resolution. The comments were mostly editorial but some were technical related to Natural Esters and Safety. As a result of feedback from the Spring 2017 meeting, where it was feasible, duplication in sections 4 and 5 of the guide were merged. Wally Binder referenced the Normatives to ensure everything is editorial correct. Sue McNelly mentioned to review the scope to ensure there is no conflict.

Annex K

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Derek Baronowski made a motion to seek approval from the Power Transformer Committee to go to ballot with version 1.4 and it was seconded by Joe Watson. Motion carried unanimously. The Working Group will meet in Spring 2018. Under new business, David Murray requested opinions on whether to perform a complete electrical test for relocating a GSU transformer a couple of hundred yards or just perform an SFRA test. Comments were overwhelming in favor of complete electrical testing. Vijayan Krishnamurthy requested to review extending the storage time beyond 6 months without oil. The meeting was adjourned at 2:26 pm.

Page 7 of 25

Attachment K.4.4.2

Meeting Minutes

P60214-2

Tap-Changers - Part 2: Application guide

Chair: Craig A. Colopy Vice-Chair Axel Kraemer

Secretary Adam M. Sewell

Current Draft Being Worked On: 14/913/CD

PAR Expiration Date: December 31, 2018

Meeting Date: 31 October 2017 Time: 13:45 to 15:00

Location: Louisville, KY

1. Attendance: 2. Members 17 3. Guests 33 4. Guests Requesting Membership 7

Total 57

Meeting Minutes / Significant Issues / Comments:

1. Meeting was called to order at 1:45 pm, October 31, 2017.

2. Introductions were made and attendance sheets were passed out.

3. Call for patents were made with no response from any attendees.

4. Agenda for this meeting was unanimously approved.

5. Minutes from April 2017 in New Orleans were unanimously approved after time change.

6. More than 50% WG members were in attendance so a quorum was established.

7. Craig Colopy took the opportunity to provide an update on the status of the adoption of 60214-Part 1, published in 2014, for the purpose of replacing C57.131-2012. PAR was accepted to with a WG initiated. An obstacle was formed when IEC did not allow IEEE to obtain a copy for the adoption process. An agreement was reached at the IEC TC14 meeting in Boston to have NEMA Transformer Technical Committee look into and accept working with IEC in obtaining a copy of the IEC standard for the WG. A proposal has been sent to Gerard Winstanley, NEMA Program Manager.

8. Vice-Chair Axel Kraemer presented results from IEC CD circulation and IEEE ballot. a. IEC CD was circulated as document 14/913/CD on June 9th, 2017

i. 99 comments on CD was published as 14/926A/CC on September 15th, 2017 ii. Vice-Chair mentioned 2 technical comments from IEC CD circulation to the group which will be

discussed in more detail at the Nov 2-3, 2017 work session. iii. Comments will cause only minor changes in the CD, no 2nd CD necessary iv. Next step: revised draft will be distributed as a CDV

b. IEEE ballot – August 18 – September 17, 2017 i. ballot group membership was 106 ii. Votes: 75 affirmative / 3 negative / 6 abstention iii. 156 comments (117 editorial / 27 technical / 11 general) iv. Vice-Chair reviewed IEEE general and technical comments and will review in more detail during Nov

2-3, 2017 work session in Louisville, KY. v. Comments will cause only minor changes in the CD

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vi. Next step: revised draft will be recirculated in parallel with IEC CDV 9. Next work session is November 2-3, 2017 in Louisville, KY.

10. Meeting adjourned at 3:00 pm.

Submitted by: Craig A, Colopy Date: 11/01/17

Page 9 of 25

Attachment K.4.6

Revision to C57.143 – “Guide for Application of Monitoring Equipment to Liquid-Immersed Transformers and Components”

Transformer Monitoring Working Group

Monday, October 30, 2017 Louisville, KY, USA Minutes of WG Meeting The meeting was called to order at 3:16pm by Vice Chair Brian Sparling. Secretary Mark Cheatham was also present. This was the second meeting of the working group, rosters were circulated and members asked to stand to determine quorum, quorum was reached with 38 of 68 members present. The attendance for the meeting was as follows: Number of Members in Activity = 68 Number of Members Present = 38 Quorum Present = 55.9% Number of attendees = 130 Attendees requesting Membership = 11 The WG does plan to meet at the spring 2018 Transformers Committee Meeting in Pittsburgh.

PAR Status: PAR for a Revision to an existing IEEE Standard

Type of Project: Revision to IEEE Standard C57.143-2012 PAR Request Date: 19-Nov-2016 PAR Approval Date: 17-Feb-2017 PAR Expiration Date: 31-Dec-2021

The Agenda for the meeting was reviewed as seen below.

K.9 MEETING AGENDA

1. Welcome & Introduction 2. Call for Patent Disclosure 3. Roster Circulation 4. Quorum Roll Call 5. Chair Remarks 6. New Members – Indicate on Roster 7. Working Group Activities

a. Discuss scope of C57.143 PAR, identify suggestions that may be outside of scope, and determine course of action.

b. Presentation to go over suggestions/comments from the Review Team submitted last month. Including suggested, additional content, modification of existing Chapters, and Annex sections

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8. New Business

If you have any new business items to present at the meeting, please inform the

Chairman, and Vice Chairman, as well as the Secretary, with your suggestion, for review,

to make sure it fits within the scope and time of this meeting. Already identified include;

1. Adding to the introduction statements related to WHY, a transformer owner wants to monitor their transformer

2. Addition of a new Chapter on Data Analytics 3. Improvement to Chapter dealing with communications 4. Concepts on change management, and how the outputs of the system can deliver

the value sought. 5. Moving ANNEX ‘E’ into a new Chapter. 6. Moving ANNEX ‘D’ into a new Chapter 7. Set up task forces as needed to begin editing different sections of the guide.

Brian Sparling asked for any patent claims against C57.143 to be raised by attendees,

none were expressed.

Brian Sparling reviewed the scope of the PAR with the WG and posed the question to

the group of whether the scope should be revised to consider covering interpretation

of monitoring results. There was much discussion on this by the group, with support

for revision and opposition ultimately leading to a motion by Roger Verdolin to

remove the word “Not” from the last line of the scope as follows; “This guide does

not cover interpretation of monitoring results.” The motion was seconded by Joe

Watson, a vote by the working group did not meet the required support to carry the

motion and thus no change to the scope.

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Brian Sparling reviewed the purpose of the PAR with the WG. Luiz Chiem made a

motion to add the word supply to the purpose as follows:

“The purpose of this document is to provide guidance to those who supply, specify, apply, install, and use on-line monitoring equipment on liquid-immersed power transformers and their components” The motion was seconded by Emilio Morales, a vote by the working group members

present did not meet the required support to carry the motion and thus no change to

the purpose.

Brian Sparling Presented suggestions/comments from the Review Team submitted last month. Including suggested, additional content, modification of existing Chapters, and Annex sections with the working group. The presentation also covered the content comparison between C57.143-2012 and Cigre TB 630. A copy of this presentation will be shared with the working group. Brian Sparling informed the WG that members will be contacted prior to the Pittsburgh meeting based on their communicated interest and expertise to form TF to focus on specific sections of the guide for revision.

A motion to Adjourn was given by Luiz Cheim and seconded by Roger Verdolin

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Attachment K.4.7

Revision of C57.148 Standard for Control Cabinets for Power Transformers Joe Watson: Chair, Weijun Li: Vice-Chair, JF Collin: Secretary

The working group met at 11:00 AM on Monday 10/30/2017 in Marriott Rooms 7-9 at the Louisville Downtown Marriott Hotel in Louisville, Kentucky. 39 attendees were recorded, including 19 members. No quorum was reached. It was the third official Working Group meeting for this project. The complete attendance record is available in the AMS System. 2 guests requested membership. As required by the main committee, the Patent question was asked at the beginning of the meeting. No essential patents were claimed. As no quorum was reached, no official business was conducted. As a result, the New Orleans Spring 2017 meeting minutes and the Fall 2017 meeting agenda were discussed but not approved. The WG chairman asked Ryan Musgrove, leader of TF for Review of Section 5, to discuss the task force comments. Comment #14 was about cabinet to tank wall distance requirements. The TF couldn’t find explanation supporting the 60mm that was proposed by the commenter, but agreed that the 200mm distance between the cabinet and tank wall should be discussed and possibly reduced. Comment #16, in reference to explosion-proof requirements of the control cabinet, was discussed in detail. Markus Stank of Reinhaussen suggested that the standard should exclude these special requirements. The majority of attendees agreed that the WG should not take on the requirements for specialty transformers. Gary Hoffman of Advanced Power Technologies volunteered to draft an informative note. He will report back to the TF leader. In response to Comment #19 regarding the box material, TF members wanted to highlight the importance of avoiding the use of plastic. Regarding Comment #27 about the use of fire-resistant instead of fire-retardant for finger proof cover, Hakim Dulac from Qualitrol believed that the requirement should be “Fire retardant” unless otherwise stated as fire-resistant is not easily achievable. He volunteered to revise this paragraph and will report back to the chair with a proposal or clarification. Control door alarm was then discussed. One of the key considerations was various compliance requirements. The WG Chairman suggested that a door alarm should be added in the standard, perhaps as an optional feature. Weijun Li didn’t agree since padlock is already standard on each cabinet and there usually are plenty of surveillance/security monitoring points at substations; therefore adding a control cabinet door alarm seem redundant or unnecessary. Regarding Comment #40 about replaceable gasket, Markus Stank of Reinhaussen asked if all gasket can be replaceable. JF Collin from Nomos Systems confirmed that usually, all gasket foamed doors are replaceable. Gary Hoffman from Advanced power technologie said that if the end users understand they might have to scratch the gasket, then “replaceable” should stay in

Page 13 of 25

the standard. The group agreed that there is no need to remove “replaceable” from the standard. In response to Comment #43, the group proposed to replace “stainless steel” by “same material”. Regarding empty space provision, Comment #46, Ryan Musgrove of Oklahoma Gas & Electric and Weijun Li proposed having 20% provision for future needs. Markus Stanks suggested letting it as a user-defined option instead of a standard requirement. Review of all comments on section 5 will continue at the next meeting. WG chair will post the spreadsheet received from TF on the WG web site. Following TF section 5 work, Shankar Nambi of Bechtel, TF leader of section 6 & 7, will present TF comments during the next meeting. The WG officers will review and wrap-up additional comments prior to next meeting. The group will meet again in Pittsburgh, Pennsylvania in March 2018. The meeting was adjourned at 12:15 PM.

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Attachment K.4.8

C57.150 – IEEE Guide for the Transportation of Transformers and Reactors Rated 10 000 kVA or Higher

Tuesday, October 31, 2017

Louisville, KY, USA

Minutes of WG Meeting

The meeting was called to order at 11:00am by Chair Greg Anderson. Vice-Chair Ewald Schweiger and Secretary Susan McNelly (writer of Minutes) were also present.

There were a total of 93 people present, 22 members and 71 guests. The WG plans to meet at the Spring 2018 Transformers Committee Meeting in Pittsburgh, Pennsylvania. No roster was passed around for the meeting, so any guests desiring membership will need to contact one of the WG officers.

Agenda

1. Welcome 2. Patent Issues 3. WG Leaders 4. Brief History of WG 5. Timeline 6. Presentation by Andy Burns, Edwards Moving & Rigging 7. Comparison to CIGRE Guide

A call for essential patent claims was made. No patent claims were identified.

Introductions of the Chair, Vice Chair, and Secretary were made. Attendees were asked to introduce themselves and indicate their affiliations when making comments or asking questions.

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Rogerio Verdolin motioned to approve the agenda and it was seconded by Craig Steigemeier. There were no objections to the agenda as identified above.

The minutes of the Spring Meeting were never distributed. They will be distributed with minutes for this meeting for review and approval at the spring meeting in Pittsburgh.

List of Meeting Attendees is provided below. Those identified with an asterisk are WG Members in attendance.

Hamid Abdelkamel* Gregory Anderson* Javier Arteaga* Young Wook Bae Gilles Bargone Cheryl Basel* Claude Beauchemin Enrique Betancourt* William Boettger* Andrew Burns Jim Cai Juan Castellanos* Vincent Chiodo Eun Cho* Larry Christodoulou Nikita Dave Eric Davis Rodolfo Diaz James Fairris* Howard Fennell* Ryan Fields* Shawn Galbraith* Eduardo Garcia* James Gardner* Alexander Gaun* Thomas Golner* Bill Griesacker* Bridget Havens Jeffery Henry Carl Hummel Grace Jones Makoto Kadowaki Gael Kennedy* Stacey Kessler* Peter Kleine Nicholas Kostich*

John Lackey Michael Lau* Antoine Lecomte Qian Li Mario Locarno* Rogelio Martinez Douglas McCullough James Mciver Susan McNelly* Justin Minikel David Murray Shankar Nambi Joe Nims* Kraig Nunn William Oliver Vijay Pargaonkar George Partyka Verena Pellon Brian Penny* Ion Radu* Jimmy Rasco Rakesh Rathi* Jeffrey Ray Kevin Riordan Marnie Roussell Alfons Schrammel* Wesley Schrom Ewald Schweiger* Cihangir Sen* Mark Shem-Tov Yukiyasu Shirasaka* Richard Simonelli* Andre Simons* Yong Tae Sohn* Thomas Spitzer* Brad Staley

Andrew Steineman* Gregory Stem* Craig Stiegemeier* Roy Su* Kevin Sullivan* Yunhan Sun Craig Swinderman* Troy Tanaka Robert Thompson* Olivier Uhlmann* Alwyn VanderWalt* Rogerio Verdolin* Krishnamurthy Vijayan Sukhdev Walia* David Wallach* Joe Watson* Bruce Webb Daniel Weyer* Shuzhen Xu Hsiao-Yu Yeh Kris Zibert*

Page 16 of 25

Greg provided a brief history of the document and the timeline for the revision. He indicated we need to be done at least a year prior to the expiration of the PAR.

Presentation by Andy Burns, Edwards Moving & Rigging

Andy provided an updated presentation of one presented at the Thursday morning tutorial on Transportation of Transformers, The Hot Buttons in April of 2015.

Dave Wallach commented that some of the states are requiring the entity requesting a permit to do an engineering analysis on bridges that will be crosses. Andy indicated that there are several states taking this approach.

Kris Zibert asked whether it is difficult to provide cost estimates early on for moving of units. Andy indicated that permits are typically not requested for a proposal, so estimates are based on previous moves.

Question was asked as to whether various route plans looked at when putting together proposals? Andy indicated that yes more than one route is reviewed.

Craig Stiegemeier asked if anyone has gone to the authorities with proposals for how to respond to emergency situations with permits. He indicated that he is worried that it would take another Metcalf type event for something to move forward in this direction. Andy indicated that there is a bureaucracy problem and that plans to streamline the process need to be put into place.

Greg indicated that there is a CIGRE Guide, WG A2 42 (CIGRE Proceedings 673), on Transformer Transportation. He would like to have volunteers to review that guide and compare to the existing C57.150.

Mario Locarno, Bruce Webb, Vijayan Krishnamurthy, and Ewald Schweiger volunteered to review the Guide. Mario indicated that the CIGRE Guide is very complete and covers a number of important issues. Shankar Nambi and Hamid Abdekkamel volunteered to help with comparison of the CIGRE and C57.150 documents, but do not have access to the CIGRE. Whether this can be provided or not will be looked at.

Greg reviewed items that had been identified at the last meeting and asked if there were any additional items.

Dave Wallach mentioned the idea of a “swimlanes” type matrix at the beginning to lay out the various transportation phases and to reference the appropriate clauses. Dave provided a first draft example of the concept that is shown below:

Page 17 of 25

Joe Watson indicated that a lot of the impact recorder reports include a frequency and duration that may need to be covered. Rakesh Rathi , Craig Nunn and Shankar Nambi volunteered to review and provide updates to the impact recorder section of the Guide.

Rich Simonelli volunteer for shipping with Ester liquids.

Dave Wallach and Cihangir (John) Sen volunteered to review redundancy and emergency planning issues.

Greg asked whether something needs to be included about how to deal with impact limits being exceeded. Joe Watson also indicated there is nothing regarding internal bracing for shipment. Greg indicated we try to shy away from design issues, but there may be a way to provide some guideance. Rogerio Verdolin indicated that he has had issues with exceeded limits and struggled with how to deal with this. He indicated that there should be a reference in the document on this. He and Joe Watson will look at what items could be included in this regard.

Wally Binder indication that C57.152 is just starting up. He recommended that test limits be referred to C57.152 and at present doesn’t see any tests that need to be added to the Transportation Guide.

Joe Watson indicated that if there are requirements that you should check air pressure, for instance, we should indicate that a pressure gauge should be required. Joe and Wally will review the test portion and identify any items that should be included.

Javier Arteaga will look at the topic of pressure changes during transportation that was raised at the last meeting.

Juan Castellanos indicated that he has had experience with custom officers breaking vacuum and damaging parts when doing inspections at the port or border.

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Greg Anderson, Kevin Sullivan, and Roy Su volunteer to review the SFRA test section.

Dave Wallach mentioned that there should be a table or graphic showing responsibilities with regards to transportation.

John Sen asked if the Installation Guide (C57.93) should be reviewed to determine if there is any overlap. Greg indicated that this was done during development of the first transportation guide, but would be worth reviewing again to see if there are any updates to C57.93 that conflict.

A draft of the present Guide will be posted with a special password for the volunteers to access.


Greg Anderson WG Chair

Ewald Schweiger WG Vice-Chair


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C57.150 – IEEE Guide for the Transportation of Transformers and Reactors Rated 10,000kVA or Larger

Tuesday, April 4, 2017

New Orleans, Louisiana, USA

Minutes of WG Meeting

The meeting was called to order at 11AM by Chair Greg Anderson. Vice-Chair Ewald Schweiger and Secretary Susan McNelly (writer of Minutes) were also present.

Since this is the first meeting of the WG, anyone requesting membership on the initial roster will be accepted as a WG Member. Retention of this membership will be determined based on participation and attendance at future meetings. There were 28 of the total 113 attendees that requested membership. There were a total of 110 people that signed in on the paper roster with 5 of those on the paper roster not on the RFID tabulation and 3 on the RFID list that were not on the paper roster.

The WG plans to meet at the Fall 2017 Transformers Committee Meeting in Louisville, Kentucky.

The following guests requesting membership were:

Abdelkamel, Hamid Weldetnsae, Yotam

Arteaga, Javier Zibert, Kris

Binder, Wallace Garcia, Eduardo

Boettger, William Gyore, Attila

Fairris, James Kampshoff, Ken

Garcia, Eduardo Kessler, Stacey

Gyore, Attila Lau, Michael

Kampshoff, Ken Lee, So-young

Kessler, Stacey Locarno, Mario

Lau, Michael McShane, Charles Patrick

Lee, So-young Mukerji, Amitav

Locarno, Mario Sbravati, Alan

McShane, Charles Patrick Schrammel, Alfons

Mukerji, Amitav Simons, Andre

Sbravati, Alan Su, Roy

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Schrammel, Alfons Sullivan, Kevin

Simons, Andre Swinderman, Craig

Su, Roy Uhlmann, Olivier

Sullivan, Kevin VanderWalt, Alwyn

Swinderman, Craig Verdolin, Rogerio

Uhlmann, Olivier Wallach, David

VanderWalt, Alwyn Watson, Joe

Verdolin, Rogerio Weisensee, Matthew

Wallach, David Weldetnsae, Yotam

Watson, Joe Zibert, Kris

Weisensee, Matthew

All of the above will be added as WG members.

Agenda 1. Attendance Roster Circulation 2. Agenda Review 3. Patent Call 4. Introduction of WG Leaders 5. Revision Topics and Assignments 6. New Business 7. Adjournment

Introductions of the Chair, Vice Chair, and Secretary were made. Attendees were asked to introduce themselves and indicate their affiliations when making comments or asking questions.

List of Meeting Attendees is provided below. Those identified in bold are WG Members in attendance.

Abdelkamel, Hamid Holmes, Jill Sauzay, Mathieu Alongia, Rachel Horning, Michael Sbravati, Alan Amos, Richard Kaineder, Kurt Schrammel, Alfons Anderson, Gregory Kaiserseder, Gerald Schweiger, Ewald Arteaga, Javier Kampshoff, Ken Selvaraj, Pugazhenthi Ayers, Roy Kanty, Steve Sen, Cihangir Badaracco, Ken Kennedy, Gael Sethi, Kabir Basel, Cheryl Kessler, Stacey Sharpless, Sam Baumgartner, Christopher

Kim, Dong-Soo Shirasaka, Yukiyasu

Betancourt, Enrique Kim, Young Simonelli, Richard Binder, Wallace Kostich, Nicholas Simons, Andre

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Blake, Dennis Lau, Michael Skinger, Kenneth Boettger, William Lee, Shawn Sohn, Yong Tae Bolar, Sanket Lee, So-young Speegle, Andy Bradford, Ira Liu, Chien Chih Spitzer, Thomas Bradshaw, Jeremiah Locarno, Mario Spurlock, Mike Cantu de Leon, Jorge Lugge, Andrew Steineman, Andrew Castellanos, Juan Maia, Mario Stem, Gregory Castillo, Alonso Mango, Joseph Stiegemeier, Craig Cho, Eun Marshall, Scott Su, Roy Chu, Wen-Ping McNelly, Susan Sullivan, Kevin Duart, Jean-Claude McShane, Charles Patrick Swinderman, Craig Epperson, Hazel Mehta, Shirish Thompson, Clifton Fairris, James Minhaz, Rashed Thompson, Robert Fennell, Howard Mukerji, Amitav Tuli, Subhash Fields, Ryan Munro, Andrew Uhlmann, Olivier Ford, Gary Musgrove, Ryan van der Kolk, Stefan Galbraith, Shawn Mushill, Paul VanderWalt, Alwyn Galhardo, Leonardo Natale, Anthony Verdolin, Rogerio Garcia, Eduardo Neal, Jason Walia, Sukhdev Gardner, James Nickoley, Ingo Wallach, David Gaun, Alexander Nims, Joe Watson, Joe Golner, Thomas O'Malley, Anastasia Weisensee, Matthew Gragert, Jeffrey Penny, Brian Weldetnsae, Yotam Griesacker, Bill Radu, Ion Weyer, Daniel Gyore, Attila Ramirez Bettoni, Eduardo Wu, Shawn Hartmann, Thomas Rathi, Rakesh Zibert, Kris Holleran, Joseph Razuvayev, Sergiy

A call for disclosure of any essential patent or patent applications claims was made. There were no patent claims identified.

History

Greg gave a brief history of the Guide. It was started approximately 13 or 14 years ago. There was only an installation guide available at the time. C57.150 covers a unit up until it is delivered and offloaded. C57.93 covers everything after that point for installation and testing.

A question was asked by Wally Binder about where C57.150 starts. Does it start at the point it is permitted and loaded at the manufacturer? A comment was made by Ewald that it starts at the specification.

Timeline

The guide was completed in 2012 and published in 2013. A new revision is due by the end of 2022.

A PAR for revision of C57.150 was requested in February of 2017 and has been approved. The PAR expiration date is 12/31/2022

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The project need identified on the PAR was read to the group.

Revision Topics/Assignments

Greg requested attendees come up and identify any area that are in need of revision.

Joe Watson commented that it would be good to get feedback from those that have used the document since it was published.

Suggested Additions/Revisions

Greg Anderson – Mobile transformers

Wally Binder – When does the transportation effort start?

Anderson/McNelly – Lashing requirements or recommendations for information from supplier

McNelly – Impact recorders – special options for overseas shipment?

Mario Locarno – Indicated that there is a CIGRE document A2.42 #637 that has considerable content on transportation. Greg asked for a volunteer to review the CIGRE document to see if there is content that should be covered in C57.150.

Greg Anderson – Impact recorders have X, Y, Z, but there are other factors such as tilt and roll, frequency, duration

Alan Sbravati – In C56.93, he indicated that there are special needs for shipment of natural ester filled units.

Dave Wallach – Indicated that there are probably changes to issues related to transportation path maintenance, planning ahead for routing of transformers for emergencies, advance planning

Rogerio Verdolin – Mentioned an issue of what to do when impact limits are exceeded. What type of testing should be done. Greg indicated that some of this should be covered up front in a contract.

Sukhdev Walia - Special concerns with construction of roads to sites in the mountain or on steep slope. Need to design the road for turning radius and slope.

Bob Thompson – indicated the pitch and roll may not be applicable only on shipment from overseas. It could also be seen for over the road shipment.

Wally Binder – Mentioned the field testing guide would identify the limits of test and suggests tests to be performed before receipt. Provide reference to C57.152. Greg asked Wally if he could review that document to see if there is anything that should be incorporated into our document.

Joe Watson – Mentioned that if there are tests that other documents recommend, that there should be mentioned in C57.150 to make provisions for any special testing.

Sam Sharpless – Indicated he agreed with Rogerio Verdolin. There needs to be information sharing between the user and the supplier regarding impacts or other unusual circumstances that may have occurred during transport. Greg mentioned the inco-terms that are in the document that identifies the responsibility of transportation.

Javier Arteaga – The temperature of the gas inside the transformer is not the same as various times during the transport. There needs to be something covering this. Javier was asked to prepare a paragraph or two that would cover this.

Juan Castellanos – Indicated shared experiences or examples for inspections at the port of entrance. There have been items damaged due to customs inspections.

Rakesh Rathi – location of impact recorder, types of recorders, issues with batteries, solar type

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that get covered by a tarp, etc. are topics that should be covered. Susan McNelly indicated that we could also maybe provide more detail regarding the placement of the impact recorders.

Scott Marshall – Performing SFRA in the shipping configuration. There are problems matching up results. Greg indicated that this is covered, but there may be enhancements that could be made.

Greg indicated we are looking for experts in the various areas to look at the document and provide input or suggestions for improvement or items that are missing.


Greg Anderson WG Chair

Ewald Schweiger WG Vice-Chair


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Attachment K.4.12 2017 Fall Meeting Location: Louisville Kentucky Meeting Room: "Marriot 6", 2nd Floor Date: Tuesday, Oct 30th 2017 Time: 9:30 hours – 10:45 hours MINUTES of Task Force on Need for Guide for Condition Assessment of Transformers The TF group met with 122 people in attendance. 67 requested Membership.

A. Welcome & Introduction B. Roster Circulation C. Previous meeting minutes was approved. D. Present meeting agenda was proposed and approved. E. Chair Remarks:

1. Consider as a group adopting acceptable criterion from existing IEEE Guides published or those published by the US Bureau of Reclamation (FIST Volume 3-31), and/or Cigré to assist them in determine the condition of their units. 2. The chair showed some examples of condition assessment scale based on IEEE criteria for bushings. 3. Brian mentioned that the title and scope needs to be approved by the TF before a PAR could be submitted. 4. The chair proposed a list of topics that could be considered for inclusion in the scope portion.

F. Bruce Forsyth mentioned that the TC has already approved the creation of a WG for developing this guide.

G. The proposed PAR title " A Guide for the Assessment of Liquid Immersed Transformers, Reactors and their components " was tabled for discussion.

1. There was a lot of discussion about the title and what components needed to be included. 2. Tom Prevost suggested that we remove the words "and their components" and adopt the

remaining words in the title. 3. Joe W moved the motion to adopt. Tom P seconded it. 4. The proposed title "A Guide for the Assessment of Liquid Immersed Transformers, Reactors was

approved." H. The scope " A Guide for the Assessment of Liquid Immersed Transformers, Reactors and their

components, to determine and quantify the overall condition by means of an Index” was tabled for discussion.

1. Joe Watson felt that the word "index" in the title restricted the scope of the proposed guide. 2. The chair proposed a list of topics that could be considered for inclusion in the guide. 3. There was a lot of discussion on what needed to be included in the scope. 4. Due to shortage of time, the scope draft could not be adopted. 5. There was a suggestion that we create a sub TF to draft the scope before the Spring 2018 and

get it balloted by the Power Transformers SC. I. The chair requested for volunteers. 22 volunteers have offered their help. J. The plan is to complete the scope verbiage by having a few conference calls between now and the

Spring 2018 meeting and submit the PAR at the end of that meeting.. K. Meeting was adjoined.

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L. The next meeting of this TF will be held in Pittsburgh, PA. Brian Sparling, Chair Ismail Guner, Vice Chair Kumar Mani

Dynamic Ratings Inc Email : [email protected] Hydro Québec TransÉnergie. Email : [email protected] .Duke Energy Inc. Email: [email protected]



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Annex L Standards Subcommittee – Unapproved Minutes

November 1, 2017 Louisville, KY USA Chair: Jerry Murphy Vice Chair: Kipp Yule Secretary: Daniel Sauer Standards Coordinator: Jim Graham

The Secretary, Daniel Sauer opened the meeting calling for a show of members to establish quorum which was met.

L.1 Meeting Attendance

The Standards Subcommittee met on Wednesday, November 1st, 2017, at 4:30 PM EDT. A show of hands indicated 23 of 46 members in attendance at the beginning of the meeting which met the quorum requirement. Overall the attendance roll showed there were 84 attendees, 26 members, 58 guests, including 10 that requested membership upon tabulation of the circulated rosters and will be reviewed for eligibility. Gary Hoffman moved to approve the agenda with second by Marcos Ferreira; motion was carried in the affirmative via viva voce. Daniel then requested a review of the New Orleans minutes; motion was made by Sanjib Som and seconded by Marcos Ferreira; motion was carried in the affirmative via viva voce.

L.2 Chair’s Remarks

Daniel stated that both Jerry and Kipp were not able to make this meeting, but we look forward to their return at the Pittsburgh meeting. Additionally, Daniel mentioned that the RFID system appeared to be working, so please make sure you tap-in, but for the present also make sure you sign the paper rosters.

L.3 Working group reports

L.3.1 Continuous Revision of C57.12.00-2015 – Steve Snyder The purpose of this WG is to compile all the work being done in various TF/WG/SC’s for inclusion in the continuous revision of C57.12.00 in a consistent manner. This WG coordinates efforts with the companion Standard C57.12.90 so that they publish together. The current standard was approved by the IEEE-SA Standards Board on December 5, 2015, with an official publication date of May 12, 2016. The standard is good for 10 years, but is under continuous revision and will be next balloted when sufficient new material is available. The PAR which covers the ongoing continuous work on the document is good through December 31, 2021. As agreed at the Fall 2016 Standards Subcommittee meeting, any new material provide to me for inclusion in the next revision, will first be presented to this subcommittee for the “official” vote of approval. One such topic has been addressed by the appropriate subcommittee and is presented here: Clause 6.6.1 Insulating Liquids “Standard needs to maintain the sentence "There are other insulating fluids that may be suitable and are commercially available...". From the Insulating Fluids Subcommittee the following response was

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received: “Support C57.12.00 BRG decision to continue limiting inclusion of insulating liquids to those that have a published ASTM Acceptance Standard.” Therefore no change is recommended to the published standard. Respectfully submitted by Steven L. Snyder, WG Chair, on November 1st, 2017.

L.3.2 Continuous Revision of C57.12.90-2015 & Cor. corrections – Steve Antosz This is a working group by committee of task forces, for continuous revision of C57.12.90. The purpose of the WG is to keep track of the work being done in various TF/WG/SC’s for inclusion in the continuous revision of C57.12.90 in a consistent manner.

Summary

The revised document was published in March 2016 as IEEE Std C57.12.90-2015. Shortly after the document was published, one error and one omission was discovered, so a Corrigendum was done and published on March 23, 2017. It is IEEE Std C57.12.90™-2015/Cor 1-2017 (Corrigendum to IEEE Std C57.12.90-2015) Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers Corrigendum 1: Editorial and Technical Corrections.

Status A new PAR was submitted by me in October 2017 and it is on the agenda for NESCOM’s next meeting in December.

FUTURE REVISIONS AND PENDING WORK Since this is a continuous revision document, there continues to be ongoing work in the various Task Forces. Changes already approved for the next revision: Changes to 9.3.1 Wattmeter-voltmeter-ammeter method from Mark Perkins’ PCS TF for Revision of C57.12.90. Final survey approved in Nov 2015 in both the TF and PCS. The following text is to be added just prior to Figure 18 for three-phase transformers:

An alternate method for either single phase or three phase transformers is to provide capacitive compensation for the transformer impedance at the terminals of the transformer so that the AC source need only supply the real power for the test. Figure 18 shows the apparatus and connections for a single phase transformer for this alternate method and the method can also be used in a three phase configuration. In this case, the wattmeter will measure the real power of the transformer under test plus the power of the capacitors, which will be very small compared to the power in the transformer. The load loss in the transformer is determined by subtracting the loss in the capacitors from the measured loss. For modern oil film capacitors, a loss of 0.2 watts per actual kVAR may be used unless a specific capacitor bank loss is known. This method requires a separate CT or set of CTs at the transformer for setting the current and measuring the transformer impedance. The advantage of this alternate method is that the phase angle between the voltage and current at the wattmeter is low (closer to zero degrees) due to the capacitor compensation, so any phase angle errors in the loss measurement circuit are much less significant. Add in subclause 10.3.1 and 10.3.1.1 Lightning Impulse, the following words in red; by Pierre Riffon’s WG Revision to Impulse Test in Dielectric Test Subcommittee. Submitted on 11/4/2016. These

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subjects have been surveyed within the Dielectric Tests SC and within the TF. The 4th survey got a 100% approval rate.

10.3.1 Impulse tests shall be made without excitation. The impulse waveshape parameters such as peak voltage, front time and tail time are determined on the test voltage curve which is obtained after having processed the recorded curve using the test voltage function method, as defined in IEEE Std. 4. 10.3.1.1 Full-wave test The test wave rises to crest in 1.2 µs and decays to half of crest value in 50 µs from the virtual time zero. The crest value shall be in accordance with the assigned basic impulse insulation level (BIL), subject to a tolerance of ± 3%; and no flashover of the bushing or test gap shall occur. The tolerance on virtual front time should be ± 30%, and the tolerance on time to half of crest should be ± 20%. However, as a practical matter, once the manufacturer has proven that they have test equipment limitations, the following shall be considered: a) If the standard impulse shape cannot reasonably be obtained because of low winding inductance or high capacitance to earth and the resulting impulse shape is oscillatory so that the relative overshoot magnitude exceeds 5 % then the front time may be increased to reduce the overshoot amplitude. In all cases, the front time shall not exceed 2.5 µs regardless of the overshoot amplitude. Note 1: The overshoot can be reduced by increasing the front resistor value of the impulse generator. The use of low inductance connections between the impulse generator and the tested transformer are also recommended. pending work

Possible future addition of a new clause for a Load Tap Changer Performance Test, from Hakan Sahid (formerly Mark Perkins) PCS TF for Revision of C57.12.90.

This TF also is considering to add a clause that a transformer be tested with the same insulation liquid that it will use in service. For example, a unit to be filled with ester liquid should (or shall?) not be tested with mineral oil in the factory.

Possible future revision to subclause 10.8.2 from Bertrand Poulin’s TF regarding a limit of pressure applied inside a transformer tank during induced voltage test. Ongoing work continues.

Other possible revisions to subclauses 10.2 to 10.4 from Pierre Riffon’s TF for revision of impulse tests. Ongoing work continues.

Other possible revisions to subclauses 10.5 to 10.10 from Bill Griesacker’s TF (formerly Bertrand Poulin) for revision of low frequency tests. Ongoing work continues. A TF has been formed to look at reducing the limit for PD level Failure Detection in 10.8.5.

Respectfully submitted by Stephen Antosz, WG Chair, on November 11, 2017

L.3.3 Corrigenda for C57.12.70 – Steve Shull Steve Shull called the meeting to order and introductions were made. Dan Mulkey substituted for Jerry in the capacity of secretary as Jerry was not able to attend. The roster was circulated. The names of those in attendance are recorded in the AM system. To establish a quorum, a members list was displayed on the screen and those who saw their names were asked to hold up their hand. From this count of hands, it was determined that a quorum was established. A motion was made by Charles Sweetser and seconded by Lee Mathews to accept the agenda as shown. The motion passed unanimously. The Patent Slide statement calling for Essential Patent Claims was read and no patents were brought up. A motion was made by Charles Sweetser to accept the minutes of the Spring 2017 meeting. This was seconded by Lee Matthews. The motion passed unanimously. Steve told group that the corrections had been made on the document as there had been a number of correct shared at the last meeting. This new draft will be posted on the website. A comment was

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received from Tyler Morgan concerning clause A.6. Steve asked Jason Varnell to discuss the comment. He explained that there is confusion in this table as sometimes the reference is winding to winding, while other times it is terminal to terminal. A task force was formed with Jason Varnell as the lead and Charles Sweetser volunteered, and Tyler Morgan was appointed. The task force is to recommend a revision of this table to address the raised concern and provide a suggested solution so that it could be reviewed by the WG prior to the Philadelphia meeting. Lee Matthews raised a question over whether the “+” sign shown in A.5.3 is correct. It was determined that this was addressed in the main document and this was believed to be correct. Steve asked the TF to review Fig A.74 through A.77 with this in mind. All of this will be considered in the TF recommendations back to the working group.

Respectfully submitted by Dan Mulkey, on October 31st, 2017.

L.3.4 WG Standard Transformer Terminology C57.12.80 The Chair opened the meeting at 4:45 p.m. on Tuesday, 28 November 2017 5 Guest members attended the Spring 2017 meeting. There was no quorum then and no quorum at the Fall 2017 meeting so no agenda or meeting minutes could be accepted as final. One suggestion was received at the Spring 2017 meeting for a definition for wind turbine transformers. The chair asked for input for ideas from the Fall 2017 meeting group to cover other terms that may not be in C27.12.80. The group made suggestions of dry type terms, load tap changers (LTC), dissolved gas analysis, insulating liquids and a base kVa 12.01 base rated power, bushings and the list went on. The chair had not received any input for terms that were not listed after the minutes were sent out. One of the members asked when the PAR expires and was told 2020. Gary Hoffman suggested that we ask Ms. Malia Zaman for checking all of the standards for consistency. Possible starting point look at definitions that are in standards such as C57.12 base standards. What is a key standard? The terms in the standards prevail over what was in 12.80. Gary suggested that we ask Ms. Zaman if we need permission for the WG to use IEEE standards collection for terminology checking. Another idea was proposed to use the IEEE dictionary and to ask Ms. Zaman for a word document. Gary Hoffman stated that this is an important standard, that all subcommittee chairs or delegates should be obliged to participate. He proposed that we bring it up at Subcommittee standards meeting tomorrow. The meeting was adjourned at 4:30 p.m. and Mr. McShane and Mr. Claiborne talked with Ms. Zaman about the results of the meeting. Respectfully submitted by C. Clair Claiborne, Claiborne Consulting, LLC and Charles Patrick McShane

L.4 Old Business There was no old business discussed.

L.5 New Business No new business was brought before the Standards Sub-Committee.

L.6 Adjournment

The meeting and was adjourned by motion at 4:46 PM EDT, moved by Donald Platts and seconded by Stephen Shull; motion was carried in the affirmative via viva voce.

Respectfully submitted by Daniel M Sauer, Standards SC Secretary

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Annex M Subsurface Transformers & Network Protectors Subcommittee

Nov 12, 2017 Louisville, KY Chair: Dan Mulkey Vice Chair: George Payerle

M.1 Meeting Administration

Introductions – The meeting was called to order at 11:00 AM Wednesday, November 1, 2017 in the Marriott 7-9 rooms of the Louisville Downtown Marriott in Louisville, KY. Introductions were made, and sign-in sheets were routed. The meeting agenda was approved. Quorum – The members were listed on the screen and by a show of hands, it was determined that there was a quorum in attendance. Members and Guests --There were 27 members and 22 guests in attendance. Their names can be found in the AM system. Approval of Minutes – The minutes from the spring 2017 meeting in New Orleans were approved. They were motioned for approval by Brian Klaponski and seconded by Al Traut. The subcommittee approved these without opposition.

M.2 Working Group and Task Force Reports

M.2.1 C57.12.23 Working Group Report – Single-Phase Submersible Transformer Alan Traut, Chairman, Jermaine Clonts, Secretary. Revision Due Date: 3/19/2019 PAR Approval Date: 8/21/2014 PAR Expiration Date: 12/31/2018 Introductions – The meeting was called to order and everyone was asked to introduce themselves. Paper rosters were sent around in addition to asking for all attendees to scan their badge. At the start of the meeting the working group was asked to disclose of any essential patent claims. No essential patent claims were disclosed Quorum – We had 58 attendees, 31 members present out of 43 active members, which gave us enough members to establish a quorum. Approval of agenda - unanimous approval of agenda Approval of meeting minutes- unanimous approval of meeting minutes Chair Report – Al talked about when the PAR expires and how long we have to complete our work. PAR expires December 31, 2018. 10-year life cycle of the standard is December 31, 2019. Al informed the working group of his desire to send to the ballot in the spring meeting of 2018, which would give us two more meetings. Old Business 7.2.2 Low Voltage terminals Al Traut reviewed the table defining low voltage bushing stud size by kVA constructed by Bill Wimmer, Ed Smith, and Josh Verdell. The stud size for a transformer rated 250 kVA with a LV of 120 volts was

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marked as “N/A” as the application exceeds the ratings of the 1.25” stud. Dan Mulkey proposed a motion to accept the table as presented. Ed Smith seconded the motion. The motion passed unanimously. 7.6.1 Tank Material Thickness table Al Traut reviewed the final minimum material thickness table. Jermaine Clonts noted the table was based off AISI standards, considered hot and cold rolled steel, and the values presented were the minimum for the given steel gauge. Ronald Stahara made a motion to accept table 5 as presented. Ed Smith seconded the motion. The motion passed unanimously. New Business 7.2 Accessories The working group expressed interest in adding additional accessories such as tap changers and dv switches to section 7.2, however due to time constraints the working group decided this should be addressed in the next revision. 5.3 Voltage and Tap ratings The text in Section 5.3 Voltage and Tap ratings was modified to include “unless specified by the end user. The section now read as follows. “Voltage ratings shall be in accordance with Table 1 and Table 2. No taps shall be provided unless specified by the end user.” Alex Macias made a motion to accept the revised text Giuseppe Termini seconded the motion. The motion passed unanimously. 4.2 Submerged operation Igor Simonov made a recommendation to define a test procedure to validate submersible transformers can operate under 10 ft of water. Dan Mulkey mentioned the submersible enclosure integrity working group 12.32 would take care of this test procedure. To close the meeting Al Traut noted that he will send out the draft to the working group before the Spring 2018 meeting for comments, send out the draft to MEC, and during the spring 2018 meeting the working group will vote to go to ballot

M.2.2 Continuous Revision of C57.12.24 – Three-Phase Submersible Transformers Giuseppe Termini, Chairman; George Payerle Secretary Approved: 12/7/2016 Revision Due Date: 12/7/2026 PAR Approval Date: PAR Expiration Date: N/A 1) The meeting of C57.12.24 was called to order on Monday October 30, 2017 at 9:30 by Giuseppe

Termini. Introductions were made and an agenda was presented. The meeting was attended by 14 members and 31 guests. Membership stands at 26 and with 14 members present, there was a quorum. Eight (8) guests requested membership. The chairman stated that 2 persons were removed from the membership and 3 were added. Those added were Piotr Blaszczyk, Wes Suddarth, and Mike Thibault. Attendance of at least two (2) consecutive meetings is required for membership.

2) The chairman reminded everyone that attendance of members is critical to maintain a quorum and conduct and be able to conduct business. Guests, active participants and interested individuals are encouraged to attend and participate as well but only members are permitted to vote.

3) The chairman asked if there were any patent claims. There were none.

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4) George Payerle acted as recording secretary. The chair presented an agenda. Said Hachichi moved to approve and Brian Klaponski seconded. Approval was unanimous. The minutes of the Spring 2017 meeting in New Orleans were presented. Kent Miller moved to approve the meeting minutes and Alex Macias seconded. Approval was unanimous.

5) The chairman stated that our standard was published in December 2016. If we request a PAR now, the clock would start and we would have 4 years to complete the next revision so, it was decided at the Subcommittee that we would meet as a group for next meetings in order to continuously revise the standard by capturing suggestions and ideas that can be considered for the next revision of the standard.

6) The chairman introduced Patrick Ho from Powertech Labs who gave a presentation on corrosion as it pertains to submersible transformers. The chair will forward a pdf version to the meeting attendees.

7) Following the presentation, a suggestion was made to include a material compatibility chart between the tank material and accessories, such as connectors, that are attached to the tank. This material compatibility chart could be included in either the body of standard or as an Annex. Patrick Ho mentioned that there may be pertinent information available from NACE (National Association of Corrosion Engineers- www.nace.org) or from the ASTM standards to create such a chart. Babanna Sunesh and Tom Dauzat volunteered to work on the material compatibility chart. Brian Klaponski also suggested that the group should develop information on tank materials that can be used in a variety of environments.

8) The chairman requested that if anyone had any suggestions for the next standard revision, such information should be provided prior to the next meeting so that it can be included into the agenda.

9) The meeting was adjourned at 1:48. The next meeting will be in Pittsburgh on March 26, 2018.

M.2.3 Continuous Revision of C57.12.40 – Secondary Network Transformers Brian Klaponski, Chairman; Giuseppe Termini, Secretary Revision Due Date: 12/31/2027 PAR Approval Date: PAR Expiration Date: N/A 1) The group met on Tuesday, October 31, 2017 at 11:00 am with 23 members and 26 guests

Five (5) guests requested membership. The purpose of this meeting was to continuously revise the standard. Because the new revision of our standard was just published, we used this meeting to have 2 presentations to help create discussion in regard to the direction of our next revision.

2) An agenda was presented and approved, and introductions were made. 3) The minutes of the April 4, 2017, meeting in New Orleans, LA were reviewed. Dan Mulkey

made a motion to approve those Minutes. Bill Wimmer seconded the motion and the minutes were approved unanimously.

4) The Chair stated that the C57.12.40 standard was successfully published in September 2017. 5) The remaining of the meeting consisted of the following two presentations by ConEd

representatives Jane Shin and Jason Attard. a) Cathodic Protection for the Network Transformers b) Location of the Primary Grounding Switch – IEEE Standard vs. ConEd

6) The presentations were followed by questions/answers sessions with much discussion.

http://www.nace.org/

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7) The meeting was adjourned at 12:15 pm with the next meeting set for Pittsburg, PA in March 2018.

M.2.4 -C57.12.44 Working Group Report – Secondary Network Protectors Mark Faulkner, Chairman, Alex Macias, Secretary Revision Due Date: 12/31/2024 PAR Approval Date: 3/26/2015 PAR Expiration Date: 12/31/2019 Meeting Administration:

• The meeting was called to order at 1:45 PM • Attendance

- Rosters passed out - Roster Scanned and Sent to DHM

• Introductions o Membership Displayed

• Essential Patents Disclosure - None cited

• Quorum Determination - 28 individuals attended the meeting

o Membership stands at 16; members present 14 o Quorum met

- Those that have requested membership and have attended two consecutive sessions will be members at next meeting.

o Membership to increase to 17 for next meeting • Approval of the last meeting minutes

- Mark Faulkner presented the meeting agenda to the WG for review and acceptance. o Doug Craig motioned to approve the meeting agenda as presented o Bill Wimmer, seconded the motion o Motion was approved unanimously; No one opposed.

Meeting addresses items left for discussion from the New Orleans Item #1 – Dry Contact (Re-address)

• Discussion held on past acceptance of “dry contact (no voltage)” o Doug/Pedro both concurred that it shall remained as previously accepted o Brian found definition in IEEE confirming the wording

• Lee made a motion to approve “dry contact (no voltage)” o Charles (Cory) Morgan motion to approve o Motion was approved unanimously; No one opposed

Item #2 – Section 6.1.1.2 Voltage Test Minimum • Pedro Salgado and Doug Craig submitted for review a proposed re-write to define and clarify

min. voltage and trip percentages wording. o The proposal was presented to the Group/Members. The original single paragraph was

broken up into 4 smaller paragraphs; each one read, reviewed, and discussed. The content generated numerous inputs and disagreements. The proposal took up the entirely time allotted. Pedro/Doug/Cory were asked to task to readdress the changes agreed upon and to

be submitted to Mark/Alex for inclusion for Draft (1) review distribution.

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• Mark will investigate and provide an understanding of the origins of the 7.5 percent minimum trip. This will be presented at the next meeting.

Item #3 – Draft (1) An edited revised Draft (1) will be sent out to all WG members for review and comments. The responses will included in Draft (2) and reviewed in the next meeting. Mr. Mulkey will distribute the Draft (1) to WG members. Next meeting: Pittsburgh, PA. March 25-29, 2018

M.3 Old Business 1) Subcommittee Title Change

The reason for the title change from “Underground” to “Submersible” is to correctly separate the transformers assigned to the Distribution Subcommittee from those with this subcommittee:

Distribution System: • Overhead

o Pole-Bolt (Distribution Subcommittee) o Platform (Distribution Subcommittee)

• Underground o Pad-mount (Distribution Subcommittee) o Subsurface (Subsurface Transformers & Network Protectors Subcommittee)

2) Task Force / Working Group

Email reply to question about how to best maintain interest and personnel:

Steve Antosz: “Can we consider your C57.12.24 and 12.40 as continuous revision documents? I think this may be the answer so that your groups can meet on an ongoing basis, and we can give consistent structure to our committee. I discussed yesterday with Greg and he is okay with giving you these timeslots, citing the important fact that these meetings are productive and worthwhile. So we call them Task Forces for a while, you submit a PAR and then they can again become Working Groups. Just be careful about wording the Task Force scope, it should not be about developing ideas and design options about product or technology, it should be ideas and options about the development of the standards document.” 3) Calendar for Revising a Standard

Executing these steps will maximize the life of a PAR which allows the most working group sessions without requesting a PAR extension:

Meeting the NesCom/RevCom Submittal deadlines is critical. Calendars with these dates can be found on: http://standards.ieee.org/about/sasb/meetings.html

http://standards.ieee.org/about/sasb/meetings.html

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Summary:

• ½ year on project approval --- 1 committee meeting • 3 ½ years on standard development --- 7 committee meetings • 1 ½ years on standard approval --- 2 committee meetings, 1 no-action meeting

Year -1 • Oct/Nov – Fall Meeting – Prepare PAR, Tittle, Scope, and Purpose, obtain Subcommittee approval

• Early Nov – Submit to the Standards Coordinator who if approves, refers to

the Transformers Committee's Administrative Subcommittee for approval. • Mid Nov/Early Dec – Fill out online PAR form and get with Standards

Coordinator for submission to NesCom • Late December – NesCom/RevCom Submittal deadline

Year 0 • Jan – PAR is approved at the January Continuous Processing NesCom meeting, PAR expires on Dec. 31st of approval year + 4)

• Mar/Apr – Spring Meeting – Work on draft

• Oct/Nov – Fall Meeting – Work on draft

Year 1 • Mar/Apr – Spring Meeting – Work on draft • Oct/Nov – Fall Meeting – Work on draft

Year 2 • Mar/Apr – Spring Meeting – Work on draft • Oct/Nov – Fall Meeting – Work on draft

Year 3 • Mar/Apr – Spring Meeting – finish major changes

• June – Submit Draft for MEC Review (30 Days) • Sep – Initiate the Invitation to create the ballot pool (30 Day), valid for 6

months • Oct/Nov – Fall Meeting – Resolve MEC comments and any other changes, WG

votes to submit to ballot, Subcommittee approves • November – Initiate Sponsor Ballot (30-day ballot)

Year 4 • Jan – Ballot review task force – Review comments and recommend disposition • Mar/Apr – Spring Meeting - Resolve comments

Annex M 11/12/2017

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• Jun – Run Recirculation ballot (10-day ballot) • July – Resolve Comments

• July – Run Recirculation ballot 2 if needed (10-day ballot)

• Aug – Request extension if approval is in doubt

• Early Oct – Submit to RevCom

• Mid October – NesCom/RevCom Submittal deadline

• Oct/Nov – Fall Meeting – no WG business

• Late Dec – RevCom Meeting review / Revised Standard Approved • Dec 31 – PAR Expires

M.4 New Business There was a discussion about availability of the corrosion resistance presentation that was given at the 12.24 meeting, specifically whether a password would be required to access it. Brian Klaponski suggested that we prepare an informative annex concerning corrosion resistance and cathodic protection. We had a comment from a corrosion expert outside the industry that indicated that our understanding of corrosion and its effects was incomplete. He asked for help in developing information. Audrey Siebert-Timmer and Bob Kinner indicated that they would be willing to help and Bob said he would prepare a presentation. There were discussions of various ways to change the schedule so that we can discuss corrosion and cathodic protection without using a new time slot. Possibly we could use Al Traut’s 12.23 slot after he goes to ballot. We may see if we can move 12.24 to after lunch on Tues. And maybe the time slot after that for a task force if we need it. Mike Thibault said one of their employees is a metallurgist and welder who would be a good resource. He will check on his availability. John Vartanian will do some testing with cathodes and get back to us, probably in a year due to the length of the tests. The meeting was adjourned at 12:15 with the next meeting to take place on March 28, 2018

Annex M 11/12/2017

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M.5 SC Membership

At the meeting, three guests requested membership, however, they had not yet met the attendance requirement of 3 of the last 5 meetings. Also, a review of the attendance of the members was conducted and all were found to meet the attendance requirements. Consequently, there were no changes made to the subcommittee membership.

APPENDIX 1

Meeting Schedule

page 1

Initial Issue - September 12

IEEE/PES TRANSFORMERS COMMITTEE www.transformerscommittee.org

Fall 2017 Meeting; October 29 to November 2 Louisville Downtown Marriott Hotel; Louisville, Kentucky USA

-- See Page 5 for a key to abbreviations. -- Room locations designated as (1), (2), etc., indicate the "button to press" in the elevator. For instance, a room on (1) is located on First Level, and a room on (2) is located on Second Level. DATE/TIME

ACTIVITY

SUB- COM

ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Friday, October 27 No Meetings, Socials or Technical Tours Saturday, October 28 No Meetings or Technical Tours 6:15 pm until ?? Early Bird Event: Dinner, Bowling & Fun at The Sports & Social Club. Advance on-line registration necessary.

-- Meet in hotel lobby at 6:15 pm. We will walk together to S&SC (5-minute walk). -- Buffet dinner begins at 6:30 pm. Bowling lanes open at 7:30 pm. See flyer for details.

Sunday, October 29 No Technical Tours planned 1:00 pm - 5:30 pm Meeting Registration Marriott Ballroom Foyer (2) 2:00 pm - 5:30 pm Administrative SC

-- Closed meeting, by invitation only Admin S. Antosz 24 US

w/buffet Bluegrass 1+2 (2)

2:00 pm - 5:30 pm NEMA Transformers -- Closed meeting, by invitation only

++ J. Caskey 20 US w/beverage cart

Rose (2)

6:00 pm - 8:00 pm Welcome Reception 500 Reception Marriott Ballroom 5+6 (2)

Monday, October 30 -- Monday Breaks Sponsored by Phenix Technologies ** 7:00 am - 5:00 pm Meeting Registration Marriott Ballroom

Foyer (2) 7:00 am - 7:50 am Newcomers Orientation

-- Breakfast Meeting; arrive early! -- Newcomers & Guests are encouraged to attend!

S. McNelly 100 CL w/buffet in room

Kentucky F+G (1)

7:00 am - 7:50 am Distribution SC Leaders Coordination -- Closed breakfast meeting, by invitation only

S. Shull 12 BD w/buffet in room

Thoroughbred (2)

7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 280 RT (8/tbl) Kentucky Ballroom A-E (1)

8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) 80 RT (8/tbl) Bluegrass 1+2 (2) 9:15 am - 3:00 pm Spouses/Companions Tour: Mansions, Living History, Hot Browns & Julep. Advance registration required.

-- Bus departs front of hotel at 9:15 am, and returns ~3:00 pm. Includes lunch. See flyer for details. 8:00 am - 9:15 am > Opening Session S. Antosz

-- All attendees are encouraged to attend -- See separate document for meeting agenda -- Attendance required to maintain Committee Member status.

600 MX S1 (240 CL+360 TH)

Marriott Ballroom 5+6 (2)

9:15 am - 9:30 am Break (beverages only) First & Second Levels ** Contact Ed Smith ([email protected]) if you are interested in sponsoring a day of coffee breaks at a future meeting.

Revised October 25

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DATE/TIME

ACTIVITY

SUB- COM

ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Monday, October 30 (continued) 9:30 am - 10:45 am WG Submersible Transf. C57.12.24 UTNP G. Termini 90 MX

(50 CL + 40 TH) Kentucky F (1)

9:30 am - 10:45 am TF LTC Field Tests - NEW! PCS M. Ferreira 90 MX Kentucky G (1) 9:30 am - 10:45 am TF External Dielectric Clearances DiTests E. Davis 140 MX S3 Marriott 1-3 (2) 9:30 am - 10:45 am WG Tertiary/Stabilizing Windings

PC57.158 PCS E. Betancourt 140 MX S3 Marriott 7-9 (2)

9:30 am - 10:45 am TF Consolidation of Insulating Fluid Guides IF T. Prevost 220 MX S1 Marriott 5 (2) 9:30 am - 10:45 am TF Transformer Efficiency and

Loss Evaluation (DOE Activity) Dist P. Hopkinson 220 MX S1

(120 CL+100 TH) Marriott 6 (2)

10:45 am - 11:00 am Break (beverages only) First & Second Levels 11:00 am - 12:15 pm WG Ventilated Dry Type PC57.12.51 Dry S. Som 90 MX Kentucky F (1) 11:00 am - 12:15 pm -- -- -- 90 MX Kentucky G (1) 11:00 am - 12:15 pm WG Overhead Distr. Transf. C57.12.20 Dist A. Traut 140 MX S3 Marriott 1-3 (2) 11:00 am - 12:15 pm WG Control Cabinets PC57.148 Power J. Watson 140 MX S3 Marriott 7-9 (2) 11:00 am - 12:15 pm WG Moisture in Insulation PC57.162 IL T. Prevost 220 MX S1 Marriott 5 (2) 11:00 am - 12:15 pm TF PCS Rev. to Test Code C57.12.90 PCS H. Sahin 220 MX S1 Marriott 6 (2) 12:15 pm - 1:30 pm Lunch Meeting: Standards Development Review J. Graham 245 RT (7/tbl) Kentucky -- Everyone welcome to attend. All SC/WG/TF leaders are highly encouraged to attend. Ballroom A-E (1) -- Doors open ~12:00 pm. Come early, get a good seat, and start eating.

-- Advance registration necessary. No paper tickets. Admission verified with name badge at the door. -- Anyone can join us for this luncheon, and sit & listen to the presentation, without eating lunch. Suggested time to arrive for only the presentation (without lunch) is 12:30 pm.

1:45 pm - 3:00 pm WG Dry Type Gen. Require. C57.12.01 Dry C. Ballard 90 MX Kentucky F (1) 1:45 pm - 3:00 pm WG Sec. Network Protectors C57.12.44 UTNP M. Faulkner 90 MX Kentucky G (1) 1:45 pm - 3:00 pm WG 1-ph Padmount Dist Transf. C57.12.38 Dist A. Ghafourian 140 MX S3 Marriott 1-3 (2) 1:45 pm - 3:00 pm WG Thru-Fault Current Duration PC57.109 PCS V. Mehrotra 140 MX S3 Marriott 7-9 (2) 1:45 pm - 3:00 pm WG Installation of Power Transf. C57.93 Power M. Lau 220 MX S1 Marriott 5 (2) 1:45 pm - 3:00 pm TF Audible Sound Revision to Test Code PCS R. Girgis 220 MX S1 Marriott 6 (2) 3:00 pm - 3:15 pm Break (beverages and treats) First & Second Levels 3:15 pm - 4:30 pm SC HVDC Converter Transformers

and Smoothing Reactors HVDC M. Sharp 90 MX Kentucky F (1)

3:15 pm - 4:30 pm -- -- -- 90 MX Kentucky G (1) 3:15 pm - 4:30 pm WG 3-ph Padmount Dist Transf. C57.12.34 Dist R. Stahara 140 MX S3 Marriott 1-3 (2) 3:15 pm - 4:30 pm -- -- -- 140 MX S3 Marriott 7-9 (2) 3:15 pm - 4:30 pm WG Transformer Monitoring C57.143 Power M. Spurlock 220 MX S1 Marriott 5 (2) 3:15 pm - 4:30 pm TF PD Limits for Factory Tests DiTests V. Mehrota 220 MX S1 Marriott 6 (2) 4:30 pm - 4:45 pm Break (beverages only) First & Second Levels WG Life Extension C57.140 Power Work is complete. Document is published. 4:45 pm - 6:00 pm WG Dry Type Reactors PC57.16 Dry A. Del Rio 90 MX Kentucky F (1) 4:45 pm - 6:00 pm -- -- -- 90 MX Kentucky G (1) 4:45 pm - 6:00 pm WG Step-Voltage Regulators

C57.15 / 60076-21 Dist C. Colopy 140 MX S3 Marriott 1-3 (2)

4:45 pm - 6:00 pm WG PD in Bushings & PT/CTs PC57.160 DiTests T. Hochanh 140 MX S3 Marriott 7-9 (2) 4:45 pm - 6:00 pm 220 MX S1 Marriott 5 (2) 4:45 pm - 6:00 pm TF PCS Revisions to C57.12.00 PCS T. Ansari 220 MX S1 Marriott 6 (2) 4:45 pm - 6:00 pm 6:15 pm - 7:30 pm

Technical Tours #1A & 1B: FirstBuild Microfactory (identical tours on Monday & Tuesday). -- Advance registration necessary. Dinner on your own (eat before or after tour). See flyer for more info. -- Paper tickets will not be provided. Admission confirmed with RFID badge at bus (bring your name badge!). -- Tour #1A: Begin loading bus at hotel at ~4:30 pm and depart promptly at 4:45 pm. Return at ~6:00 pm. -- Tour #1B: Begin loading bus at hotel at ~6:00 pm and depart promptly at 6:15 pm. Return at ~7:30 pm.

page 3

DATE/TIME

ACTIVITY

SUB- COM

ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Tuesday, October 31; Happy Halloween! -- Tuesday Breaks Sponsored by R.L. Components 7:00 am - 11:30 am Meeting Registration Marriott Ballroom Foyer (2) 7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 280 RT (8/tbl) Kentucky

Ballroom A-E (1) 8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) 80 RT (8/tbl) Bluegrass 1+2 (2) 9:00 am - 4:00 pm Note early departure!

Spouses/Companions Tour: Horses, Hats and Derbies! Advance registration required. -- Bus departs front of hotel at 9:00 am, and returns ~4:00 pm. Includes lunch. See flyer for details.

7:00 am - 7:50 am EL&P Delegation (End-users only please) -- Breakfast meeting; arrive early

J. Murphy 40 CL w/buffet in foyer

Rose (2)

7:00 am - 7:50 am 100th Year Celebration Planning -- Breakfast meeting; arrive early

Mtgs P. Balma 24 CL w/buffet in foyer

Filly (2)

WG Revision to C57.12.10 Power Work is complete. Document sent to Revcom. 8:00 am - 9:15 am WG Station Service Volt. Transf. C57.13.8 IT D. Wallace 90 MX Kentucky F (1) 8:00 am - 9:15 am WG Enclosure Integrity C57.12.28,

C57.12.29, C57.12.31, C57.12.32 Dist D. Mulkey 90 MX Kentucky G (1)

8:00 am - 9:15 am TF Limits for Winding Insulation PF/Resistance

DiTests S. Tarlapally 140 MX S3 Marriott 1-3 (2)

8:00 am - 9:15 am WG Bushings Gen. Require. C57.19.00 Bush P. Zhao 140 MX S3 Marriott 7-9 (2) 8:00 am - 9:15 am WG Dry Type PD Detection PC57.124 Dry T. Prevost 220 MX S1 Marriott 5 (2) 8:00 am - 9:15 am WG Loading Guide PC57.91 IL D. Wallach 220 MX S1 Marriott 6 (2) 9:15 am - 9:30 am Break (beverages only) First & Second Levels WG GSU Bushings PC57.19.04 Bush Balloting document. WG Wind Turbine Transf. P60076-16 PCS Work is complete. Report will be made in PCS meeting. 9:30 am - 10:45 am WG Tests for Instrument Transf. C57.13.5 IT P. Riffon 90 MX Kentucky F (1) 9:30 am - 10:45 am WG 1-Ph Submersible Transf. C57.12.23 UTNP A. Traut 90 MX Kentucky G (1) 9:30 am - 10:45 am WG Temp Measurement - NEW! IL P. McClure 140 MX S3 Marriott 1-3 (2) 9:30 am - 10:45 am -- -- -- 140 MX S3 Marriott 7-9 (2) 9:30 am - 10:45 am WG Shunt Reactors C57.21 PCS S. Som 220 MX S1 Marriott 5 (2) 9:30 am - 10:45 am TF Condition Assessment Guide - New! Power B. Sparling 220 MX S1 Marriott 6 (2) 10:45 am - 11:00 am Break (beverages only) First & Second Levels 11:00 am - 12:15 pm WG PLC Caps & CCVTs PC57.13.9 IT Z. Roman 90 MX Kentucky F (1) 11:00 am - 12:15 pm WG Liquid-immersed Secondary

Network Transformers C57.12.40 UTNP B. Klaponski 90 MX Kentucky G (1)

11:00 am - 12:15 pm WG PD Acoustic Detection C57.127 DiTests D. Gross 140 MX S3 Marriott 1-3 (2) 11:00 am - 12:15 pm WG Distrib. Transf. Bushings PC57.19.02 Bush S. Shull 140 MX S3 Marriott 7-9 (2) 11:00 am - 12:15 pm WG Semiconductor Power Rectifier

Transformers C57.18.10 PCS S. Kennedy 220 MX S1 Marriott 5 (2)

11:00 am - 12:15 pm WG Transportation Issues C57.150 Power G. Anderson 220 MX S1 Marriott 6 (2) 12:15 pm - 1:30 pm Awards Luncheon D. Platts 245 RT (7/tbl) Kentucky -- Doors open ~12:00 pm. Come early, get a good seat, and start eating. Ballroom A-E (1) -- Advance registration necessary. No paper tickets. Admission verified with name badge at the door.

All meeting attendees are encouraged to attend this luncheon. It’s a great way to show your appreciation and help us recognize our accomplishments.

WG Std Require for Bushings C57.19.01 Bush Work is complete. Document sent to Revcom. WG Distr. Substation Transf. C57.12.36 Dist Work is complete. Document sent to Revcom. WG Tap Changers 60214-1-57-131 Power Document on hold pending IEC joint review 1:45 pm - 3:00 pm WG 3-ph Transf. Connections PC57.105 PCS R. Verdolin 90 MX Kentucky F (1) 1:45 pm - 3:00 pm > WG Tap Changer Applicat. Guide 60214-2

(above continued Thursday afternoon) Power C. Colopy 90 MX Kentucky G (1)

1:45 pm - 3:00 pm WG Thermal Evaluation of Insulation Systems, Dry Type C57.12.60

Dry R. Wicks 140 MX S3 Marriott 1-3 (2)

1:45 pm - 3:00 pm -- -- -- 1:45 pm - 3:00 pm -- -- -- 220 MX S1 Marriott 5 (2) 1:45 pm - 3:00 pm TF Revision to Low Frequency Tests DiTests B. Griesacker 220 MX S1 Marriott 6 (2) 3:00 pm - 3:15 pm Break (beverages and Pretzels!) First & Second Levels

140 MX S3 Marriott 7-9 (2) 220 MX S1 Marriott 5 (2)

WG 3-ph Transf. Connections PC57.105 PCS R. Verdolin 90 MX Kentucky F (1) WG Tap Changer Applicat. Guide 60214-2 Power C. Colopy 90 MX Kentucky G (1)

140 MX S3 Marriott 7-9 (2) 220 MX S1 Marriott 5 (2)

WG Instrument Transf. Tests PC57.13.2 IT T. Sizemore 90 MX Kentucky F (1)

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DATE/TIME

ACTIVITY

SUB- COM

ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Tuesday, October 31 (continued) 3:15 pm - 4:30 pm WG Std Terminal Markings C57.12.70 Stds S. Shull 90 MX Kentucky F (1) 3:15 pm - 4:30 pm Kentucky G (1) 3:15 pm - 4:30 pm WG High-Temp Insulat. Materials, P-1276 IL R. Wicks 140 MX S3 Marriott 1-3 (2) 3:15 pm - 4:30 pm WG Bushing Applicat. Guide C57.19.100 Bush T. Spitzer 140 MX S3 Marriott 7-9 (2) 3:15 pm - 4:30 pm > WG Gas Interpretation Guide C57.104 IF C. Beauchemin 220 MX S1 Marriott 5 (2) 3:15 pm - 4:30 pm TF Switching Transients Induced by

Transf/Breaker Interaction PC57.142 PCS J. McBride 220 MX S1 Marriott 6 (2)

4:30 pm - 4:45 pm Break (beverages only) First & Second Levels WG Tank Pressure Coordinat. C57.12.39 Dist Work is complete. Document sent to Revcom. 4:45 pm - 6:00 pm WG Std Transf. Terminology C57.12.80 Stds C. Clairborne 90 MX Kentucky F (1) 4:45 pm - 6:00 pm -- -- -- 90 MX Kentucky G (1) 4:45 pm - 6:00 pm WG Dry Type Test Code C57.12.91 Dry D. Foster 140 MX S3 Marriott 1-3 (2) 4:45 pm - 6:00 pm WG Short Circuit Withstand PC57.164 PCS S. Patel 140 MX S3 Marriott 7-9 (2) > 4:45 pm - 6:00 pm WG Gas Interpretation Guide C57.104 IF C. Beauchemin 220 MX S1 Marriott 5 (2) 4:45 pm - 6:00 pm TF Revisions to Impulse Test Sections

of C57.12.00 and C57.12.90 DiTests P. Riffon 220 MX S1 Marriott 6 (2)

4:45 pm - 6:00 pm 6:15 pm - 7:30 pm

Technical Tour #2A & 2B: FirstBuild Microfactory (identical tours on Monday & Tuesday). --- Advance registration necessary. Dinner on your own (eat before or after tour). See flyer for more info. -- Paper tickets will not be provided. Admission confirmed with RFID badge at bus (bring your name badge!). -- Tour #2A: Begin loading bus at hotel at ~4:30 pm and depart promptly at 4:45 pm. Return at ~6:00 pm. -- Tour #2B: Begin loading bus at hotel at ~6:00 pm and depart promptly at 6:15 pm. Return at ~7:30 pm.

Wednesday, November 1 -- Wednesday Breaks Sponsored by Northern Transformer Corporation ** No Meeting Registration, No Technical Tours, No Spouse/Companion Tours 7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 280 RT (8/tbl) Kentucky

Ballroom A-E (1) 8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) 80 RT (8/tbl) Bluegrass 1+2 (2) 7:00 am - 7:50 am SC Meetings Planning

-- Breakfast meeting; arrive early Mtgs G. Anderson 24 CL

w/buffet in foyer Filly (2)

7:00 am - 8:30 am IEC TC-14 Technical Advisory Group ++ -- Breakfast meeting; arrive early -- All interested individuals welcome

P. Hopkinson 100 CL w/buffet in room

Kentucky F+G

8:00 am - 9:15 am SC Instrument Transformers IT R. McTaggart 140 MX S3 Marriott 7-9 (2) 8:00 am - 9:15 am SC Insulation Life IL S. Kennedy 360 MX S1

(240 CL+120 TH) Marriott 5+6 (2)

9:15 am - 9:30 am Break (beverages only) Marriott Ballroom Foyer 9:30 am - 10:45 am SC Bushings Bush P. Zhao 140 MX S3 Marriott 7-9 (2) 9:30 am - 10:45 am SC Distribution Transformers Dist S. Shull 360 MX S1 Marriott 5+6 (2) 10:45 am - 11:00 am Break (beverages only) Marriott Ballroom Foyer 11:00 am - 12:15 pm SC UG Transf. & Network Protectors UTNP D. Mulkey 140 MX S3 Marriott 7-9 (2) 11:00 am - 12:15 pm SC Dielectric Tests DiTests A. Varghese 360 MX S1 Marriott 5+6 (2) 12:15 pm - 1:30 pm Lunch (on your own) 1:30 pm - 2:45 pm SC Dry Type Transformers Dry C. Johnson 140 MX S3 Marriott 7-9 (2) 1:30 pm - 2:45 pm SC Power Transformers Power B. Griesacker 360 MX S1 Marriott 5+6 (2) 2:45 pm - 3:00 pm Break (beverages and treats) Marriott Ballroom Foyer 3:00 pm - 4:15 pm SC Insulating Fluids IF D. Wallach 140 MX S3 Marriott 7-9 (2) 3:00 pm - 4:15 pm SC Performance Characteristics PCS E. teNyenhuis 360 MX S1 Marriott 5+6 (2) 4:15 pm - 4:30 pm Break (beverages only) 4:30 pm - 5:45 pm SC Standards Stds J. Murphy 140 MX S3 Marriott 7-9 (2) 6:30 pm - 9:30 pm Evening Event: Dinner Social at The Muhammad Ali Center. Advance registration is necessary.

-- Paper tickets will not be provided. Admission confirmed with RFID name badge at entrance of The Center. -- Approx 15-minute walk from hotel (6 blocks). Shuttle bus available if desired. -- Doors open and event begins at 6:30 pm. Exhibits & gift shop open 6:30-7:30 pm. Dinner begins at 7:30 pm.

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KEY Note: A PC projector will be furnished in each meeting room. Arrive early to ensure equipment operates/syncs correctly. > -- activity continued into another session / from another session BD = boardroom; US = U-shape ++ -- not a Transformers Committee activity TBD = "To Be Determined" RT = multiple roundtables S1 = special sound set-up, w/podium & lapel mics, table mics, stand mics at mid-room CL = classroom seating (w/head table for 2) S2 = stand mic in front only; S3 = one stand mic in front & stand mic(s) at mid-room TH = theater seating (w/head table for 2) MX = mix classroom & theater (w/head table) SUBCOMMITTEES Admin Administrative HVDC HVDC Converter Transformers

and Smoothing Reactors Mtgs Meetings

Bush Bushings PCS Performance Characteristics DiTests Dielectric Tests IF Insulation Fluids Power Power Transformers Dist Distribution Transformers IL Insulation Life UTNP Underground Transformers

and Network Protectors Dry Dry Type Transformers IT Instrument Transformers Stds Standards Thursday, November 2 No Socials or Technical Tours 7:00 am - 8:30 am Breakfast - Attendees (no spouses/companions please) 280 RT (8/tbl) Kentucky

Ballroom A-E (1) 8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) 80 RT (8/tbl) Bluegrass 1+2 (2) 8:00 am - 9:15 am Technical Presentation #1: "Sound Pressure Levels for

Power Transformer Specifications"; by Girgis & Howell. See flyer on website. **

400 MX S1 (240 CL+160 TH)

Marriott 5+6 (2)

9:15 am - 9:30 am Break (beverages only) Marriott Ballroom Foyer 9:30 am - 10:45 am Technical Presentation #2: "Review of Loss Evaluation Guide,

C57.120"; by Binder, Sauls, Schrammel, Verdolin. See flyer on website. **

400 MX S1 Marriott 5+6 (2)

10:45 am - 11:00 am Break (beverages only) Marriott Ballroom Foyer 11:00 am - 12:00 pm Closing Session

-- All attendees are encouraged to attend -- See separate document for meeting agenda

S. Antosz 400 MX S1 Marriott 5+6 (2)

Lunch on your own > 1:30 pm - 5:00 pm > WG Tap Changer Application Guide

IEC/IEEE 60214-2 (continued from Tuesday afternoon)

Power A. Kraemer Rose (2)

Friday, November 3 No Socials or Technical Tours > 8:00 am - 5:00 pm WG Tap Changer Application Guide

IEC/IEEE 60214-2 Power A. Kraemer Rose (2)

** Contact Tom Prevost ([email protected]) if you are interested in making a technical presentation at a future meeting. FUTURE COMMITTEE MEETINGS Spring 2018: March 25-29; Pittsburgh, Pennsylvania USA -- Our 100th Year Anniversary Celebration! Fall 2018: October 14-18; Jacksonville, Florida USA Spring 2019: March 10-14 or 17-21 or 24-28; USA Location, to be determined

Kentucky Marriott 5 C-D

Rose (2) Kentucky C-D

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Marriott Louisville Downtown Hotel 280 West Jefferson Street

Louisville, Kentucky 40202 USA +1.502.627.5045

SECOND LEVEL (2)

FIRST LEVEL (1)

APPENDIX 2

Semi-Annual Standards Report

Fall 2017 Standards Report Appendix B

IEEE / PES /TRANSFORMERS COMMITTEE

Standards Report To: Members of Transformers Committee September 28, 2017

From: Jim Graham, Standards Coordinator

Executive Summary

This report covers Transformers Committee Standards activity from March 24, 2017 through September 28, 2017. During this time no new Standards, six Revisions, and no Corrigenda were approved by the Standards Board. In this same period, the Standards Board approved no PARs for new standards; four PARs for Revisions; two PAR modifications; no PARs for Corrigenda, and four PAR extensions.

Sixteen (16) standards will expire in 2018, including one standard (C57.136) which does not have an active PAR. Eight (8) standards will expire in 2019.

In this Report:

I. Standards approved ................................................................ pg 1

II. PARs approved ........................................................................ pg 2

III. Standards Board 2017 Meeting Schedule .............................. pg 3

IV. Transformer Committee Ballot Status ................................... pg 3-4

V. Transformers Committee PAR Status .................................... pg 5-9

VI. Transformer Standards Status ............................................... pg 10- 19

Appendix A Transformers Committee Organization Chart

Appendix B IEEE Standards Association Meeting Schedule - 2018

I. Standards approved since Mar 24, 2017

Approved New Transformer Standards None

Approved Revisions to Transformer Standards (All expire 31 Dec 2026)

PC57.12.20 Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below

PC57.12.36 Standard Requirements for Liquid-Immersed Distribution Substation Transformers

PC57.12.40 Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)

PC57.12.58 Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil

PC57.140 Guide for Evaluation and reconditioning of Liquid Immersed Power Transformers

P60076-57-129 Standard for General Requirements and Test Code for Oil-Immersed HVDC Converter Transformers

Approved Standards Corrigenda None

Fall 2017 Standards Report Page 2 of 19

II. PARs approved since Mar 24, 2017

Approved PARs for New Projects None

Approved PARs for Revision of Standards (All Expire December 2021)

PC57.12.38 Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA

and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and

Below

PC57.91 Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators

PC57.123 Guide for Transformer Loss Measurement

PC57.124 Recommended Practice for the Detection of Partial Discharge and the Measurement of

Apparent Charge in Dry-Type Transformers

Approved PAR Modifcations (PAR Modifications do not change the Expiration Date)

PC57.12.51 Guide for Mechanical Interchangeability of Ventilated Dry Type Transformers

PC57.160 Guide for the Electrical Measurement of Partial Discharges in High Voltage Bushings and

Instrument Transformers

Approved PARs for Corrigenda None

Approved PAR Extensions (All expire as noted)

PC57.13.8 Standard Requirements for Station Service Voltage Transformers (December 2019)

PC57.19.04 Standard Performance Characteristics and Dimensions for High Current Power Transformer Bushings with Rated Continuous Current in Excess of 5000 A in Bus Enclosures

(December 2018)

PC57.160 Guide for the Electrical Measurement of Partial Discharges in High Voltage Bushings and

Instrument Transformers (December 2019)

PC57.161 Guide for Dielectric Frequency Response Test (December 2018)


III. 2017 IEEE Standards Board Meeting Schedule

The Standards Board has three physical board meetings per year and three teleconference meetings. The IEEE

2018 Standards Association meetings schedule is appended to this report.

Deadlines for 2018 Standards Board Submissions:

Please Note: Anything that expires at the end of 2018 must be submitted to

Standards Board (PARs to NESCOM, standards to REVCOM) by 15 October, 2018

IV. Transformers Committee Ballot Status (as of Sep 28, 2017)

PAR Number Project

Type

PAR

Expiration

Invitation

Close Date

Ballot

Close Date Status

Bushings

PC57.19.01 Revision 12/31/2017 2/25/2017 4/2/2017 Sponsor Ballot:

Ballot

Dielectric Test

PC57.161 New 12/31/2017 12/4/2016 2/9/2017

Sponsor Ballot:

Comment

Resolution

Distribution Transformers

PC57.12.39 New 12/31/2017 4/13/2016 7/14/2016

Sponsor Ballot:

Comment

Resolution

Standards Board Meeting Submission Deadline

January 2018 (teleconference) 20 December, 2017

March 2018 26 January, 2018

April 2018 (teleconference) 16 March, 2018

June 2018 04 May, 2018

September 2018 (teleconference) 27 July, 2018

December 2018 15 October, 2018


PAR Number Project

Type

PAR

Expiration

Invitation

Close Date

Ballot

Close Date Status


PC57.15 Revision 12/31/2018 2/17/2016 10/23/2016

Sponsor Ballot:

Comment

Resolution

Insulating Fluids

PC57.147 Revision 12/31/2018 2/27/2016 3/31/2016

Sponsor Ballot:

Comment

Resolution

PC57.119 Revision 12/31/2018 12/18/2014 3/15/2017

Sponsor Ballot:

Comment

Resolution


PC57.13.7 New 12/31/2017 10/13/2016 12/28/2016

Sponsor Ballot:

Comment

Resolution

Insulating Fluids

PC57.158 New 12/31/2018 5/18/2016 10/27/2016

Sponsor Ballot:

Comment

Resolution

Power Transformers

PC57.12.10 Revision 12/31/2019 12/28/2016 3/15/2017

Sponsor Ballot:

Comment

Resolution


V. Transformer Committee Active PAR Status (as of Sep 28, 2017)

PAR Number

WG Chair Project Type

Title Approval

Date PAR

Expiration Status

Bushings

PC57.19.01 Shibao Zhang Revision Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

8-Dec-2010 12/31/2017 RevCom

Agenda 05-Dec-2017

PC57.19.02 James Smith New Standard for the Design and Performance Requirements of Bushings Applied to Liquid Immersed Distribution Transformers

5-Feb-2016 12/31/2020 WG Draft

Development

PC57.19.04 Scott Digby New

Standard Performance Characteristics and Dimensions for High Current Power Transformer Bushings with Rated Continuous Current in Excess of 5000 A in Bus Enclosures

16-Jun-11 12/31/2017 Sponsor Ballot:

Comment Resolution

Dielectric Test

PC57.113 Ali Naderiamn Revision Recommended Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors

Pending NesCom Agenda 05-Dec-2017

PC57.127 Detlev Gross Revision

Guide for the Detection, Location and Interpretation of Sources of Acoustic Emissions from Electrical Discharges in Power Transformers and Power Reactors

16-Feb-15 12/31/2019 WG Draft

Development

PC57.160 Thang Hochanh New Guide for the Electrical Measurement of Partial Discharges in High Voltage Bushings and Instrument Transformers

15-Jun-17 12/31/2019 WG Draft

Development

PC57.161 Ali Naderian Jahromi

New Guide for Dielectric Frequency Response Test 23-Aug-13 12/31/2017 Sponsor Ballot:

Comment Resolution


PC57.12.20 Alan Traut Revision

Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below

8-Jun-2012 12/31/2017 RevCom

Agenda 06-Sep-2017

PC57.12.32 Daniel Mulkey Revision Standard for Submersible Equipment - Enclosure Integrity

11-Jun-15 12/31/2019 WG Draft

Development

PC57.12.34 Ronald Stahara

Revision

Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below

22-Sep-16 12/31/2020 WG Draft

Development


PAR Number


Title Approval

Date PAR

Expiration Status


PC57.12.38 Ali Ghafourian Revision

Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below

28 Sep-17 12/31/2017 WG Draft

Development

PC57.12.39 Carlos Gaytan New Standard Requirements for Distribution Transformer Tank Pressure Coordination

5-Feb-2016 12/31/2017 RevCom

Agenda 05-Dec-2017

PC57.15 Craig Colopy Revision Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators

5-Feb-2016 12/31/2018 Sponsor Ballot:

Ballot

Dry Type Transformers

PC57.12.01 Robert Ballard Revision Standard for General Requirements for Dry-Type Distribution and Power Transformers

12-May-16 12/31/2020 WG Draft

Development

PC57.124 Tom Prevost Revision Recommended Practice for the Detection of Partial Discharge and the Measurement of Apparent Charge in Dry-Type Transformers

15-Jun-17 12/31/2021 WG Draft

Development

PC57.12.51 Sanjib Som Revision

Standard for Ventilated Dry-Type Power Transformers, 501 kVA and Larger, Three-Phase, with High-Voltage 601 V to 34 500 V; Low-Voltage 208Y/120 V to 4160 V- General Requirements

21-Aug-14 12/31/2018 WG Draft

Development

PC57.12.60 Roger Wicks Revision Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers

11-Jun-15 12/31/2019 WG Draft

Development

PC57.12.91 Derek Foster Revision Standard Test Code for Dry-Type Distribution and Power Transformers

3-Mar-2016 12/31/2020 WG Draft

Development

PC57.16 J.Arturo DelRio Revision Standard for Requirements, Terminology, and Test Code for Dry-Type Air-Core Series-Connected Reactors

5-Feb-2016 12/31/2020 WG Draft

Development

HVDC Converter Transformers & Smoothing Reactors

P1277 Klaus Pointner

Revision

Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors and for Dry-Type Converter Reactors for DC Power Transmission

17-Feb-17 12/31/2021 WG Draft

Development

P60076-57-129 Ulf Radbrandt Revision Converter Transformers for HVDC Applications

10-Dec-14 12/31/2018 RevCom Agenda 06-Sep-2017


PAR Number


Title Approval

Date PAR

Expiration Status

Insulating Fluids

PC57.104 Claude

Beauchemin Revision

Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

5-Feb-2010 12/31/2017 WG Draft

Development

PC57.147 Charles Mc Shane

Revision Guide for Acceptance and Maintenance of Natural Ester Insulating Liquid in Transformers

5-Feb-2016 12/31/2018 Sponsor Ballot: Comment Resolution

Insulation Life

P1276 Roger Wicks Revision

Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Distribution, Power and Regulating Transformers

27-Mar-14 12/31/2018 WG Draft

Development

PC57.119 Gael Kennedy Revision

Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings

27-Oct-14 12/31/2018 Sponsor Ballot: Comment Resolution

PC57.162 Tom Prevost New Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors

23-Aug-13 12/31/2017 WG Draft

Development

PC57.165 Phillip McClure New Guide for Temperature Measurements for Liquid Immersed Transformers and Reactors

17-Feb-17 12/31/2021 WG Draft

Development

PC57.91 David Wallach Revision Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators

28-Sep-2017 12/31/2021 WG Draft

Development


PC57.13.2 Thomas Sizemore

Revision Standard for Conformance Test Procedure for Instrument Transformers

Pending NesCom Agenda

05-Dec-2017

PC57.13.5 Pierre Riffon Revision

Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above

3-Mar-2016 12/31/2020 WG Draft

Development

PC57.13.7 Henry Alton New Standard for Current Transformers with a Maximum mA Secondary Current of 250 mA

30-Sep-10 12/31/2017 Sponsor Ballot:

Comment Resolution

PC57.13.8 David Wallace New Standard Requirements for Station Service Voltage Transformers

11-Dec-13 12/31/2019 WG Draft

Development

PC57.13.9 Zoltan Roman New Standard for Power-Line Carrier Coupling Capacitors and Coupling Capacitor Voltage Transformers

23-Mar-17 12/31/2021 WG Draft

Development


PAR Number


Title Approval

Date PAR

Expiration Status

Performance Characteristics

P60076-16 Phil Hopkinson New Power Transformers - Part 16: Transformers for Wind Turbine Application

10-Dec-14 12/31/2018 Sponsor Ballot: Comment Resolution

PC57.105 Roger Verdolin Revision Guide for Application of Transformer Connections in Three-Phase Electrical Systems

26-Mar-15 12/31/2019 WG Draft

Development

PC57.109 Vinay Mehrotra Revision Guide for Liquid-Immersed Transformers Through-Fault-Current Duration

26-Mar-15 12/31/2019 Sponsor Ballot: Comment Resolution

PC57.110 Richard Marek Revision

Recommended Practice for Establishing Liquid-Immersed and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents

12-Jun-14 12/31/2018 Sponsor Ballot:

Ballot

PC57.123 Ed TeNyenhuis Revision Guide for Transformer Loss Measurement 15-Jun-17 12/31/2021 WG Draft

Development

PC57.142 James Mcbride Revision

Guide to Describe the Occurrence and Mitigation of Switching Transients Induced by Transformers, Switching Device, and System Interaction

23-Mar-17 12/31/2021 WG Draft

Development

PC57.158 Enrique

Betancourt New

Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers

15-May-12 12/31/2018 Sponsor Ballot: Comment Resolution

PC57.164 Sanjay Patel New Guide for Establishing Short Circuit Withstand Capabilities of Liquid Immersed Power Transformers, Regulators, and Reactors

30-Jun-16 12/31/2020 WG Draft

Development

PC57.18.10 Sheldon Kenned Revision Standard Practices and Requirements for Semiconductor Power Rectifier Transformers

30-Jun-16 12/31/2020 WG Draft

Development

PC57.21 Sanjib Som Revision Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

21-Aug-14 12/31/2018 WG Draft

Development

PC57.32a Sheldon Kennedy Amendment

Standard for Requirements, Terminology, and Test Procedures for Neutral Grounding Devices Amendment: Neutral Grounding Resistor Section

17-Feb-17 12/31/2021 WG Draft

Development


PAR Number


Title Approval

Date PAR

Expiration Status

Power Transformers

P60214-1-57-131 Craig Colopy New Standard Requirements for Tap Changers 7-Dec-2016 12/31/2020 WG Draft

Development

P60214-2 Craig Colopy New Tap-Changers - Part 2: Application Guide 12-Jun-14 12/31/2018 Sponsor Ballot: Comment Resolution

PC57.12.10 Gary Hoffman Revision Standard Requirements for Liquid-Immersed Power Transformers

26-Mar-15 12/31/2019 RevCom Agenda 05-Dec-2017

PC57.143 P Michael Spurlock

Revision Guide for Application of Monitoring Equipment to Liquid-Immersed Transformers and Components

17-Feb-17 12/31/2021 WG Draft

Development

PC57.148 Joe Watson Revision Standard for Control Cabinets for Power Transformers

30-Jun-16 12/31/2020 WG Draft

Development

PC57.150 Gregory Anderson

Revision Guide for the Transportation of Transformers and Reactors Rated 10,000 kVA or Higher

23-Mar-17 12/31/2021 WG Draft

Development

PC57.93 Michael Lau Revision Guide for Installation and Maintenance of Liquid-Immersed Power Transformers

29-Mar-12 12/31/2018 WG Draft

Development

Standards

PC57.12.70-2011 /Cor 1

Stephen Shull Corrigendum Standard Terminal Markings and Connections for Distribution and Power Transformers - Corrigendum 1: Correction of Annex A

5-Feb-2016 12/31/2019 WG Draft

Development

PC57.12.80 C. Clair Claiborne

Revision Standard Terminology for Power and Distribution Transformers

23-Mar-17 12/31/2021 WG Draft

Development

PC57.12.00 Steve Snyder Revision Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

17-Feb-17 12/31/2021 WG Draft

Development

Subsurface Transformers & Network Protectors

PC57.12.23 Alan Traut Revision

Standard for Submersible Single-Phase Transformers: 250 kVA and Smaller; High Voltage 34 500GrdY/19 920V and Below; Low Voltage 600 V and Below

21-Aug-14 12/31/2018 WG Draft

Development

PC57.12.44 William Wimmer Revision Standard Requirements for Secondary Network Protectors

26-Mar-15 12/31/2019 WG Draft

Development


VI. Transformers Standards Status (as of Sep 28, 2017)

Standard Number Title Year SASB

Expiration Notes

Bushings SC Chair: Peter Zhao email: [email protected] phone: (417) 345-5926

C57.19.00 IEEE Standard General Requirements and Test Procedure for Power Apparatus Bushings

2004 12/31/2020

C57.19.01 IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

2000 12/31/2018 Yes, PAR at revCom

65700-19-03 IEC/IEEE International Standard -- Bushings for DC application 2014 12/31/2024

C57.19.100 IEEE Guide for Application of Power Apparatus Bushings 2012 12/31/2022

Dielectric Test SC Chair: Ajith Varghese email: [email protected] phone: (262) 442-7197

C57.113 IEEE Recommended Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors

2010 12/31/2020

C57.127 IEEE Guide for the Detection and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors

2007 12/31/2018 Yes, PAR expires in 2019

C57.138 IEEE Recommended Practice for Routine Impulse Tests for Distribution Transformers

2016 12/31/2026

C57.98 IEEE Guide for Transformer Impulse Tests 2011 12/31/2021



Expiration Notes

Distribution Transformers SC Chair: Steve Shull email: [email protected] phone: (417) 625-611

C57.12.37 IEEE Standard for the Electronic Reporting of Distribution Transformer Test Data

2015 12/31/2025

C57.12.20 IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below

2011 12/31/2021

C57.12.28 IEEE Standard for Pad-Mounted Equipment--Enclosure Integrity 2014 12/31/2024

C57.12.29 IEEE Standard for Pad-Mounted Equipment--Enclosure Integrity for Coastal Environments

2014 12/31/2024

C57.12.30 IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity for Coastal Environments

2010 12/31/2020

C57.12.31 IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity 2010 12/31/2020

C57.12.31-2010/Cor 1 IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity - Corrigendum 1: Correction to the SCAB Corrosion Test in 4.5.6

2014 12/31/2024

C57.12.32 IEEE Standard for Submersible Equipment - Enclosure Integrity 2002 12/31/2018 Yes PAR expires in 2019

C57.12.34

IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below

2015 12/31/2025

C57.12.35 IEEE Standard Bar Coding for Distribution Transformers and Step-Voltage Regulators

2013 12/31/2023

C57.12.36 IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers

2017 12/31/2027

C57.12.38 IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below

2014 12/31/2024



Expiration Notes

Distribution Transformers SC Chair: Steve Shull email: [email protected] phone: (417) 625-611

C57.12.38-2014/Cor 1

IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below - Corrigendum 1: Figure 1A

2016 12/31/2026

C57.15 IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators

2009 12/31/2019

Dry Type Transformers SC Chair: C.W. Johnson email: [email protected] phone: (276) 688-1512

259 IEEE Standard Test Procedure for Evaluation of Systems of Insulation for Dry-Type Specialty and General-Purpose Transformers

1999 12/31/2020

C57.12.52 IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 Volts--General Requirements

2012 12/31/2022

C57.12.01 IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers

2015 12/31/2025

C57.12.51 IEEE Standard for Ventilated Dry- Type Power Transformers, 501 kVA and Larger, Three-Phase, with High- Voltage 601 V to 34 500 V; Low- Voltage 208Y/120 V to 4160 V- General Requirements

2008 12/31/2018 Yes PAR expires in 2018

C57.12.58 IEEE Approved Draft Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil

2017 12/31/2027

C57.12.59 IEEE Guide for Dry-Type Transformer Through-Fault Current Duration 2015 12/31/2025

C57.12.60 IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers, Including Open-Wound, Solid-Cast, and Resin-Encapsulated Transformers

2009 12/31/2019

C57.12.60-2009/Cor 1 IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers, Including Open-Wound, Solid-Cast, and Resin-Encapsulated Transformers

2013 12/31/2023



Expiration Notes

Dry Type Transformers SC Chair: C.W. Johnson email: [email protected] phone: (276) 688-1512

C57.12.91 IEEE Standard Test Code for Dry-Type Distribution and Power Transformers

2011 12/31/2021

C57.124 IEEE Recommended Practice for the Detection of Partial Discharge and the Measurement of Apparent Charge in Dry-Type Transformers

1991 12/31/2019

C57.134 IEEE Guide for Determination of Hottest-Spot Temperature in Dry-Type Transformers

2013 12/31/2023

C57.16 IEEE Standard for Requirements, Terminology, and Test Code for Dry-Type Air-Core Series-Connected Reactors

2011 12/31/2021

C57.94 IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type Distribution and Power Transformers

2015 12/31/2025

C57.96 IEEE Guide for Loading Dry-Type Distribution and Power Transformers 2013 12/31/2023

HVDC Converter Transformers & Smoothing Reactors

SC Chair: Mike Sharp email: [email protected] phone: 416-298-8108

1277 IEEE Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission

2010 12/31/2020

C57.129 Standard for General Requirements and Test Code for Oil-Immersed HVDC Converter Transformers

2007 12/31/2018 Yes PAR expires in 2019

638 IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

2013 12/31/2023



Expiration Notes

Insulating Fluids SC Chair: Dave Wallach email: [email protected] phone: (980) 373-4167

C57.637 IEEE Guide for the Reclamation of Mineral Insulating Oil and Criteria for Its Use

2015 12/31/2025

C57.104 IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

2008 12/31/2018 Yes PAR expires in 2017, PAR needs an extension

C57.106 IEEE Guide for Acceptance and Maintenance of Insulating Mineral Oil in Electrical Equipment

2015 12/31/2025

C57.111 IEEE Guide for Acceptance of Silicone Insulating Fluid and Its Maintenance in Transformers

1989 12/31/2019

C57.121 IEEE Guide for Acceptance and Maintenance of Less-Flammable Hydrocarbon Fluid in Transformers

1998 12/31/2019

C57.130 IEEE Guide for the Use of Dissolved Gas Analysis Applied to Factory Temperature Rise Tests for the Evaluation of Mineral Oil-Immersed Transformers and Reactors

2015 12/31/2025

C57.139 IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

2015 12/31/2025

C57.146 IEEE Guide for Interpretation of Gasses Generated in Silicone-Immersed Transformers

2005 12/31/2021

C57.147 IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers

2008 12/31/2018

Yes, PAR expires in 2018. draft is in Comment resoltuon stg

C57.155 IEEE Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester-Immersed Transformers

2014 12/31/2024



Expiration Notes

Insulation Life SC Chair: Sheldon Kennedy email: [email protected] phone: (716) 896-6500

1276 IEEE Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Power Transformers

1997 12/31/2018 Yes, PAR expires in 2018

1538 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformers

2000 12/31/2021

1538a IEEE Guide for Determination of Maximum Winding-Temperature Rise in Liquid Immersed Transformers -- Amendment 1

2015 12/31/2025

C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Liquid-Immersed Distribution and Power Transformers

2011 12/31/2021

C57.119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings

2001 12/31/2018

Yes, PAR expires in 2018, draft is in commenr resolution stg

C57.154 IEEE Standard for the Design, Testing, and Application of Liquid-Immersed Distribution, Power, and Regulating Transformers Using High-Temperature Insulation Systems and Operating at Elevated Temperatures

2012 12/31/2022

C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators

2011 12/31/2021

Instrument Transformers SC Chair: Ross McTaggart email: [email protected] phone: (416) 751-8570

C57.13 IEEE Standard Requirements for Instrument Transformers 2016 12/31/2026

C57.13.2 IEEE Standard for Conformance Test Procedure for Instrument Transformers

2005 12/31/2020

C57.13.5 IEEE Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above

2009 12/31/2019

C57.13.6 IEEE Standard for High Accuracy Instrument Transformers 2005 12/31/2020



Expiration Notes


SC Chair: Ed TeNyenhuis email: [email protected] phone: (519) 837-4691

C57.105 IEEE Guide for Application of Transformer Connections in Three-Phase Distribution Systems

1978 12/31/2018 PAR expires in 2019

C57.109 IEEE Guide for Liquid-Immersed Transformers Through-Fault-Current Duration

1993 12/31/2018 PAR expires in 2019, Draft is in comment resolution .

C57.110 IEEE Recommended Practice for Establishing Liquid-Filled and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents

2008 12/31/2018 Yes, PAR expires in 2018, draft in Sponsor ballot.

C57.120 IEEE Approved Draft Guide for Loss Evaluation of Distribution and Power Transformers and Reactors

2017 12/31/2027

C57.123 IEEE Guide for Transformer Loss Measurement 2010 12/31/2020

C57.136 IEEE Guide for Sound Level Abatement and Determination for Liquid-Immersed Power Transformers and Shunt Reactors Rated Over 500 kVA

2000 12/31/2018 No Active PAR

C57.142 IEEE Guide to Describe the Occurrence and Mitigation of Switching Transients Induced by Transformers, Switching Device, and System Interaction

2010 12/31/2020

C57.149 IEEE Guide for the Application and Interpretation of Frequency Response Analysis for Oil-Immersed Transformers

2012 12/31/2022

C57.159 IEEE Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems

2016 12/31/2026

C57.18.10 IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers

1998 12/31/2019

C57.18.10a IEEE Standard for Practices and Requirements for Semiconductor Power Rectifier Transformers Amendment 1: Added Technical and Editorial Corrections

2008 12/31/2018 Active PAR, expires in 2020

C57.21 IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

2008 12/31/2018 Active PAR, expires in 2018

C57.32 IEEE Standard for Requirements, Terminology, and Test Procedures for Neutral Grounding Devices

2015 12/31/2025



Expiration Notes

Power Transformers SC Chair: Bill Griesacker email: [email protected] phone: (617) 393-3074

638 IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

2013 12/31/2023

C57.131 IEEE Standard Requirements for Tap Changers 2012 12/31/2022

C57.116 IEEE Guide for Transformers Directly Connected to Generators 2014 12/31/2024

C57.12.10 IEEE Standard Requirements for Liquid-Immersed Power Transformers 2010 12/31/2020

C57.12.10-2010/Cor 1 IEEE Standard Requirements for Liquid-Immersed Power Transformers--Corrigendum 1: Correction of 5.1.9--Sudden Pressure Relay

2012 12/31/2022

C57.12.10-2010/Cor 2 IEEE Standard Requirements for Liquid-Immersed Power Transformers -- Corrigendum 2: Correction of A.3.2.13 Autotransformer LTC application considerations

2013 12/31/2023

C57.125 IEEE Guide for Failure Investigation, Documentation, Analysis, and Reporting for Power Transformers and Shunt Reactors

2015 12/31/2025

60076-57-1202 IEC/IEEE International Standard Power transformers --Part 57-1202: Liquid immersed phase-shifting transformers

2016 12/31/2026

C57.135 IEEE Guide for the Application, Specification, and Testing of Phase-Shifting Transformers

2011 12/31/2021

C57.140 IEEE Approved Draft Guide for Evaluation and Reconditioning of Liquid Immersed Power Transformers

2017 12/31/2027

C57.143 IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components

2012 12/31/2022

C57.148 IEEE Standard for Control Cabinets for Power Transformers 2011 12/31/2021

C57.150 IEEE Guide for the Transportation of Transformers and Reactors Rated 10 000 kVA or Higher

2012 12/31/2022

C57.153 IEEE Guide for Paralleling Regulating Transformers 2015 12/31/2025



Expiration Notes

Power Transformers SC Chair: Bill Griesacker email: [email protected] phone: (617) 393-3074

C57.156 IEEE Guide for Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors

2016 12/31/2026

C57.157 IEEE Guide for Conducting Functional Life Tests on Switch Contacts Used in Insulating Liquid--Immersed Transformers

2015 12/31/2025

C57.17 IEEE Standard Requirements for Arc Furnace Transformers 2012 12/31/2022

C57.93 IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers

2007 12/31/2018 Active PAR expires in 2018

Standards SC Chair: Jerry Murphy email: [email protected] phone: (407) 824-4194

C57.12.00 IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

2015 12/31/2025

C57.12.90 IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

2015 12/31/2025

C57.12.90-2015/Cor 1 IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers Corrigendum 1:Editorial and Technical Corrections

2017 12/31/2027

C57.12.70 IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers

2011 12/31/2021

C57.12.80 IEEE Standard Terminology for Power and Distribution Transformers 2010 12/31/2020

C57.144 IEEE Guide for Metric Conversion of Transformer Standards 2004 12/31/2020

C57.152 IEEE Guide for Diagnostic Field Testing of Fluid-Filled Power Transformers, Regulators, and Reactors

2013 12/31/2023

C57.163 IEEE Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances

2015 12/31/2025

C57.163-2015/Cor 1 IEEE Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances - Corrigendum 1

2016 12/31/2026


Subsurface Transformers & Network Protectors

SC Chair: Dan Mulkey email: [email protected] phone: (707) 776-7346

C57.12.23 IEEE Standard for Submersible Single-Phase Transformers: 167 kVA and Smaller; High Voltage 25 000 V and Below; Low Voltage 600 V and Below

2009 12/31/2019

C57.12.24 IEEE Standard for Submersible, Three-Phase Transformers, 3750 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below

2016 12/31/2026

C57.12.40 IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)

2017 12/31/2027

C57.12.44 IEEE Standard Requirements for Secondary Network Protectors 2014 12/31/2024

Fall 2017 Standards Report Appendix A

Appendix A

Transformers Committee Organization Chart

IEEE/PES Transformers Committee

Chair: Stephen Antosz

Vice Chair: Susan McNelly Secretary: Bruce Forsyth Treas: Greg Anderson

Past Chair: Donald Platts Std. Coordinator: James Graham


Steve Shull

(Page 2)


Charles W. Johnson

(page 2)

Bushings

Peter Zhao

(page 4)


Ross McTaggart

(page 3)

Subsurface Transformers

& Network Protectors

Dan Mulkey

(page 3)

HVDC Converter Xfmrs &

Smoothing Reactors

Michael Sharp

(page 6)

Power Transformers

Bill Griesacker

(page 3)

Dielectric Tests

Ajith Varghese

(page 4)


Ed teNyenhuis

(page 4)

Insulating Fluids

Dave Wallach

(page 5)

Insulation Life

Sheldon Kennedy

(page 5)

Standards

Jerry Murphy

(page 6)

Meetings

Greg Anderson

(page 6)

Revised J.Graham

28 Oct, 2017

page OC1 of 6

Distribution

Steve Shull

OH Dist. Xfmrs C57.12.20

Alan Traut

Req. for 3ph Pad Mount

C57.12.34

Ron Stahara

Dist. Sub. Xfmrs

C57.12.36

Jerry Murphy

Pad-Mount 1ph Self-Cool

<2500kVA

C57.12.38

A Ghafourian

Elec Rpt of Test Data

IEEE 1388/C57.12.37

Thomas Callsen

Equip Enclosure Integrity

C57.12.28, C57.12.29,

C57.12.30, C57.12.31, &

C57.12.32

Dan Mulkey

Tank Pressure Coordination

C57.12.39

Carlos Gaytan

Bar Coding

C57.12.35

Lee Matthews

Step Voltage Regulators

C57.15

Craig Colopy


Charles W. Johnson

General Requirements.

C57.12.01

Casey Ballard

Dry Type Air-Core Reactors

C57.16

A Del Rio

Loading Guide Dry Type Xfmrs

C57.96

Rick Marek

Req. for Sealed >500kVA

PC57.12.52

Sheldon Kennedy

Transient Analysis

C57.12.58

Roger Wicks

Test Code for Dry Type Xfmrs

C57.12.91

Derek Foster

Dry-Type Hottest Spot

C57.134

Paulette Payne

Dry-Type Through Fault

Current Duration

C57.12.59

Paulette Payne

Dry-Type PD & Apparent

Charge Measurement

C57.124

Tom Prevost

Thermal Eval. for Dry-Type

C57.12.60

Roger Wicks

Req.for Vent. >500KVA

PC57.12.51

Sanjib Som

Dry Type Op & Maint. Guide

C57.94

David Stankes





Revised J.Graham

28 Oct, 2017

Eval of Dry Type Insulation Systems

IEEE 259

David Stankes

Thermal Eval of Vented Dry

Type Insulation

C57.12.56

(Open)

page OC2 of 6

Instrument Xfmrs

Ross McTaggart

Req for Inst. Xfmrs

C57.13

Ross McTaggart

Test Proc. For Inst. Xfmrs

C57.13.2

Thomas Sizemore

Test Req. for >= 115kV

PC57.13.5

Pierre Riffon

Requirements. for High

Accuracy Instr Xfmrs

C57.13.6

(Open)

Req. for mA CT

C57.13.7

Henry Alton

Requirements for SSVTs

PC57.13.8

Dave Wallace

Requirements for CCVTs

PC57.13.9

Zoltan Roman

Power Transformers

Bill Griesacker

Std Requirements

Phase Shifters

P60076-57-1202

Raj Ajhuja

Guide - Phase-Shift Xfmrs

C57.135

Raj Ahuja

Guide for Paralleling

C57.153

Tom Jauch

Req. for L.I. Power

Xfmrs C57.12.10

Gary Hoffman

Failure Investigations

C57.125

Wally Binder

Directly Connected GSU

C57.116

Gary Hoffman

Tank Rupture Mitigation

C57.156

Peter Zhao

Tap Changers –

Gen Requirements

P60214-1-57-131

Craig Colopy

Tap Changers

Application Guide

P60214-2

Craig Colopy

IEEE 638 –1E Xfmrs at

Nuc Gen Stations

IEEE 638

Craig Swinderman

Installation & Maint

Guide C57.93

Mike Lau

Arc Furnace Xfmr

C57.17

R Ganser

Eval & Reconditioning

C57.140

Paul Boman

Guide for Monitoring

C57.143

Michael Spurlock

Std for Control Cabinet

C57.148

Joe Watson

Transportation Guide

PC57.150

Greg Anderson

Functional Life Tests for DETC

C57.157

Phil Hopkinson





Revised J.Graham

28 Oct, 2017

Subsurface Transformers &

Network Protectors

Dan Mulkey

UG Self-Cool 1-ph

C57.12.23

Allan Traut

Cont. rev of

UG 3ph Dist Xfmr

< 2500 KVA

C57.12.24

Giuseppe Termini

Cont rev of Std. Req. for

Sec. Network Xfmrs

C57.12.40

Brian Kaplonski

Std. Req. for Sec.

Network Protectors

C57.12.44

William Wimmer

page OC3 of 6

Bushings

Peter Zhao

Gen. Req. of Bushings

C57.19.00

Peter Zhao

Perf Characteristics

C57.19.01

Shibao Zhang

Req. & Testing of DC

Bushings

C57.19.03

Leslie Recksiedler

Perf Characteristics for Distr Xfmr Bushings

PC57.19.02 Steve Shull

Perf Characteristics for GSU Bushings PC57.19.04 Scott Digby

Dielectric Test

Ajith Varghese

Impulse Test Guide

for Dist Tx C57.138

Art Molden

Rev of Low Freq. Tests

Bill Griesacker

Guide for Acoustic PD

C57.127

Detlev Gross

TF - Insulation resistance

and power factor

Susmitha Tarlapally

PD Measurement

C57.113

Ali Naderian

TF - Rev of Transient

Voltage Test

Pierre Riffon

TF- External Dielectric

Test Clearance

Eric Davis

WG- Guide for DFR testing

PC57.161

A. Naderian

Guide for Impulse Tests

C57.98

Art Molden

WG - PD measurement on

Bushings & Instr Xfmrs

PC57.160

Thang Hochanh


Ed teNyenhuis

PCS Rev. to

Gen Req - 12.00

T. Ansari

PCS Rev to Test Code- 12.90

Hakan Sahin

Neutral Grounding Devices

PC57.32

Sheldon Kennedy

Sergio Panetta

Req. & Test Code for Shunt

Reactors >500kVA

C57.21

Sanjib Som

App. Guide - Xfmr Connections

C57.105

Roger Verdolin

Through-Fault Current Duration

C57.109

Vinay Mehrota

Short Circuit Testing

PC57.133

Tom Prevost

Application of FRA for Liquid

Immersed Transformers

C57.149

Charles Sweetser

Neutral Grounding Devices

PC57.32a (amendment)

Sergio Panetta

Sound Level Abatement

C57.136

Stephen Antosz

DPV Grid Transformers

PC57.159

Hem Shertukde

Tertiary & Stabilizing Windings

PC57.158

E. Betancourt

Loss Evaluation Guide

PC57.120

Roger Verdolin

Semicon Rectifier Xfmrs

C57.18.10

Sheldon Kennedy





Revised J.Graham

28 Oct, 2017

Bushing App. Guide

C57.19.100

Thomas Spitzer

TF – PD limits for induced

test

Vinay Mehrota

Sw Transients CB/Xfmr

C57.142

Jim McBride

Xfmr Loss Measurement

PC57.123

Ed teNyenhuis

Short Circuit Withstand

PC57.164

Sanjay Patel

Windfarm Transformers

P60076-16

Phil Hopkinson

page OC4 of 6

Insulating Fluids

Dave Wallach

DGA Guide

C57.104

Claude Beachemin

Mineral Oil Guide

C57.106

Bob Rasor

Silicone Oil

C57.111

Paul Boman

DGA During Thermal Test

C57.130

Jim Thompson

Less Fammmable

H-C Fluid C57.121

David Sundin

DGA in LTC

C57.139

Dave Wallach

DGA in Silicone

C57.146

Jerry Murphy

App Guide for Ester Fluids

C57.147

Patrick McShane

DGA in Ester Fluids

C57.155

Paul Boman

Oil Reclamation

C57. 637

Jim Thompson

Consolidation of Fluids Guides

PC57.166 (TF)

Tom Prevost

Insulation Life

Sheldon Kennedy

Loading Guide

C57.91

Dave Wallach

Thermal Eval Test

C57.100

Roger Wicks

Temp Rise Test Above

NP Rating C57.119

Gael Kennedy

TF Investigate Use of

Furan Testing

S. Xu

Max. Winding Temp Rise

IEEE 1538

Rick Marek

App. Of High Temp

Insulation IEEE 1276

Roger Wicks

TF - Temp Rise Test -

C57.12.90, Clause 11

P. Powell

Thermal Duplicates

C57.145

Barry Beaster

Req. Hi Temp Insulation

C57.154

Rick Marek





Revised J.Graham

28 Oct, 2017

Moisture in Insulation

PC57.162

T. Prevost

Temp Measurements

for Xfmrs

PC57-165

Phil McClure

page OC5 of 6

Req. Hi Temp Insulation

C57.154a (Annex B)

Robert Thompson

Standards

Jerry Murphy





Revised J.Graham

28 Oct, 2017

Cont Rev of C57.12.00

Steve Snyder

Cont. Rev of C57.12.90

Stephen Antosz

Terminal Markings & Connections

C57.12.70

Stephen Schull

Terminology

C57.12.80

Clair Claiborne

Metric Conversion

C57.144

(Open)

Diagnostic Field Testing

C57.152

(Open)

Transformer Capability under GMD

C57.163

(Open)

IEEE /IEC Cross Reference TF

V. Mehrotra

Meetings

Greg Anderson

Educational Development

Tom Prevost

Committee History

Peter Balma

Web Site Development

Susan McNelly

HVDC Converter Xfmrs &

Smoothing Reactors

Michael Sharp

Req. & Test Code for

HVDC Smoothing

Reactors IEEE 1277

Klaus Pointner

Req. & Test Code for

HVDC Con. Xfmr

C57.129

page OC6 of 6


Appendix B

IEEE Standards Association Meeting Schedule

January

S M T W TH F S 1 2 3 4 5 6

7 8 9 10 11 12 13

14 15 16 17 18 19 20

21 22 23 24 25 26 27

28 29 30 31

February

S M T W TH F S 1 2 3

4 5 6 7 8 9 10

11 12 13 14 15 16 17

18 19 20 21 22 23 24

25 26 27 28

March


4 5 6 7 8 9 10

11 12 13 14 15 16 17

18 19 20 21 22 23 24

25 26 27 28 29 30 31

April

S M T W TH F S 1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30

May

S M T W TH F S 1 2 3 4 5

6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28 29 30 31

June

S M T W TH F S 1 2

3 4 5 6 7 8 9

10 11 12 13 14 15 16

17 18 19 20 21 22 23

24 25 26 27 28 29 30

July

S M T W TH F S 1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

August

S M T W TH F S 1 2 3 4

5 6 7 8 9 10 11

12 13 14 15 16 17 18

19 20 21 22 23 24 25

26 27 28 29 30 31

September

S M T W TH F S 1

2 3 4 5 6 7 8

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30 6 7

October

S M T W TH F S 1 2 3 4 5 6

7 8 9 10 11 12 13

14 15 16 17 18 19 20

21 22 23 24 25 26 27

28 29 30 31

November


4 5 6 7 8 9 10

11 12 13 14 15 16 17

18 19 20 21 22 23 24

25 26 27 28 29 30

December

S M T W TH F S 1

2 3 4 5 6 7 8

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30 31 6 7

IEEE Standards Association Governance Meetings Schedule

JANUARY JULY

30: NesCom/RevCom teleconferences

FEBRUARY AUGUST

07-08: BOG meeting, Johannesburg, South Africa (outreach events on 5th, 6th, and 9th)

14-19: IEEE BOD series, Lake Buena Vista, Florida, USA SEPTEMBER

MARCH 06: NesCom/RevCom teleconferences 06-08: SASB series, Tokyo, Japan (outreach events on 5th and 9th)

10-13: CAG meeting/outreach, Atlanta, Georgia, USA

APRIL 27: SASB teleconference 16-19: CAG meeting/outreach, Shenzhen, PRC OCTOBER

26: NesCom/RevCom teleconferences

MAY NOVEMBER 16-17: BOG meeting, Vienna, Austria (outreach events on 14th, 15th, and 18th)

14-19: IEEE BOD series, Vancouver, British Columbia, Canada

JUNE 28-29: CAG meeting, Piscataway, New Jersey, USA

12-14: SASB series, The Hague, Netherlands (outreach events on 11th and 15th)

30: BOG meeting, Piscataway, New Jersey, USA

20–25: IEEE BOD series, New Brunswick, New Jersey, USA DECEMBER

01: BOG meeting, Piscataway, New Jersey, USA

02: SA Awards Ceremony, Somerset, New Jersey, USA

03-05: SASB series, Piscataway, New Jersey, USA

NesCom/RevCom Submittal Deadlines: 20 December 2017 26 January 2018 16 March 2018 04 May 2018 27 July 2018 15 October 2018

2018

28 August 2017

APPENDIX 3

IEC TC14 Liaison Report

Appendix 3 - IEC TC14 Report

1

IEC TC14 Power TransformersReport to

IEEE Transformers CommitteeFall meeting

Louisville, October 2017

Meetings and website

• Last meeting Boston USA 26-27th October 2017

• Next meeting India or UK, October 2018

• From 1st December new chairman– Dr Christoph Ploetner

• See Website WWW.IEC.CH/TC14 for a summary of projects and publications

• See www.electropedia.org – for a comprehensive IEC electrotechnical vocabulary reference


2

Recently published

• IEC 60076-57-1202 Phase Shifting Transformers– IEC Standards Management Board accepted dual IEC/IEEE

references

– Published May 2017

• IEC TS 60076-20 Energy efficiency– Published January 2017

• IEC 60076-10 Determination of Sound Levels– Published March 2016

• IEC 60076-10-1 Determination of Sound Levels –Application Guide– Published March 2016

New documents in development

• IEC 60076-22 Transformer and Reactor Fittings • -1 Protective devices (alarms and trips)

• -2-6 Cooling equipment (split into fans, pumps, radiators, liquid/air and liquid/water coolers

• -7 Accessories and fittings

– CDVs on parts 1-4 issued comments returned September 2017

– Working on FDIS for these parts

– Working on CDs for other parts – part 7 nearly finished

– includes gas relays, fans, bags, terminal boxes and valves. Electronic monitoring will be separate proposal

.


3

New documents in development

• IEC TS 60076-23 DC current suppression devices– Final draft TS circulated, comments due back 10th November

• IEC 60076-24 Voltage Regulating Distribution Transformers– Project transferred from CENELEC,

– CD circulated Comments due back 8th December 2017.

• IEC 60076-25 Neutral Grounding Resistors– New work, first meeting October 2017

revisions in progress

• IEC 60076-3 Dielectric tests– Minor revision (clarification), changes agreed in

Boston

– FDIS to be issued soon

• IEC 60076-4 Impulse test guide– In progress

– Working on CD

• IEC 60076-5 Short Circuit capability– Several meetings held, working on first draft CD could

be early next year


4

Revisions in progress

• IEC 60076-7 Loading guide for liquid immersed transformers– CDV issued comments received March 2016

– FDIS finished, circulation expected November

• IEC 60076-11 Dry type transformers– CDV circulated, positive vote

– Comments being considered• IEC 60076-16 Transformers for wind turbines

– Revision with IEEE for future joint standard– CDV positive vote– FDIS now with IEC for translation expected soon


• IEC 60076-19 Uncertainties in Loss Measurement– CENELEC document circulated as CD

– Comments received March 2016

• IEC 60076-21 Step voltage regulators– Joint revision with IEEE in progress

– CDV circulated closing date 17th November

– Decided to keep existing IEC/IEEE numbering


5


• IEC 60214-2 Tap-changers application guide– Work continues on revising this to be a dual logo

document,

– CD circulated and comments received Sept 2017

– Working on CDV, Meeting here Thursday/Friday

• IEC 61378-2 (60076-57-129) HVDC converter transformers– Final standard is with IEC following incorporation of

editor’s and other comments.

– Expect publication imminently

New Work agreed

• Revisons– IEC 60076-2 Temperature rise

– IEC 60076-6 Reactors

– IEC 60076-14 Transformers using high temperature insulation

– IEC 60076-1 General

• Ad Hoc Group 1– Look at functional requirements of liquids for use in

transformers. 2 meetings held, reported to TC14, issue is complicated so will continue.


6

New Work agreed

• Ad Hoc Group 2– Looking at scope for better functional standardisation

to cater for different and new technologies.

– For example

• Low fire

• Power electronics

• Adoption of C57.142 Switching Transients Induced by Transformer/Breaker interaction– Vote by National Committees 9 in favour 4 against so

a new work item will be circulated, but probably wait until revision in IEEE is complete.

APPENDIX 4

CIGRE Liaison Report

1

CIGRE International Council on Large Electrical

Systems

Liaison Report on SCA2 Transformers For IEEE Transformer Committee Meeting

November 2017, Louisville

Paul Jarman

IEEE

14000 members 3500 Experts

58 National Committees 16 Study Committees • SC A1 Rotating Electrical Machines

• SSC A2 Transformers • SC A3 High Voltage Equipment • SC B1 Insulated Cables • SC B2 Overhead Lines • SC B3 Substations • SC B4 HVDC and Power Electronics • SC B5 Protection and Automation • SC C1 System Development and Economics • SC C2 System Operation and Control • SC C3 System Environmental Performance • SC C4 System Technical Performance • SC C5 Electricity Markets and Regulation • SC C6 Distribution Systems and Dispersed Generation • SSC D1 Materials and Emerging Test Techniques • SC D2 Information Systems and Telecommunication

3

Design, manufacturing

& testing

Specifications, procurement &

economics

Operation, reliability, safety & environment

Maintenance, diagnostics, monitoring,

& repair

Life cycle

Tran

sfo

rmer

tec

hn

olo

gy Tran

sform

er utilisatio

n

Chairman: Simon Ryder (UK) Secretary: Tim Gradnik (Slovenia)

Study Committee A2 Transformers: Key domains

SC A2 Working Groups

WG A2.43 Bushing reliability

WG A2.45 Transformer Failure Invest. & post-mortem Analysis

JWG A2/D1.46 Field experience with trans. solid insulating ageing markers

JWG D1/A2.47 New frontiers of Dissolved Gas Analysis (DGA) interpretation for power transformers and their accessories

WG A2.49 Condition Assessment of Power Transformers

WG A2.50 Effect of reverse power flow on transformers

JWG A2/D1.51 Partial Discharge Measurements for Factory and Site Tests

JWG A2/C4.52 HF transformer and reactor models for network studies

WG A2.53 Objective interpretation of FRA

WG A2.54 Power transformer audible sound requirements

WG A2.55 Life extension of oil filled transformers and reactors

WG A2.56 Power transformer efficiency

WG A2.57 Effects of DC bias on power transformers

WG A2.58 Installation and pre-commissioning of transformers and reactors

WG A2.59 On-site assembly, rebuild and high voltage testing

Recent CIGRE brochures

Title No. Year

Partial Discharges in Transformers 676 2017

Guidelines for 60270 PD Measurement 662 2016

HVDC Transformer Insulation: Oil Conductivity 646 2016

Tech. & utilization of oil-imm. shunt reactors 655 2016

Transformer Thermal Modelling 659 2016

Guide on transformer transportation 673 2016

Copper Sulphide Long Term mitigation & RA 625 2015

Transformer Reliability Survey 642 2015

Guide on Transformer Intelligent Cond. Mon. 630 2015

Some FREE CIGRE brochures

Title No. Year Transient Interac. Transformers&Power System 577 2014

Past Pres. & Future of IEC & IEEE HV Stds. 593 2014 Guide for Specifications 528 2013 Guide for Design Review 529 2013 Guide for Factory Capability Assessment 530 2013 Guide for Fire Safety 537 2013

Guide on Transformer Maintenance 445 2011

HVDC Tr. – Test, ageing, reliability in service 406 2010

HVDC Tr. – Guidelines for design review 407 2010

Experience in service with new insulating liquids 436 2010

Copper Sulphide in Transformer Insulation 378 2009

Thermal Performances 393 2009

Mechanical Cond. Assessment of Xfo Windings 342 2008

Recom. for Condition Monitoring & Assessment 343 2008

Moisture Equilibrium within Transfo. Insulation 349 2008

Websites

Main Website

WWW.CIGRE.ORG

Transformer Website

WWW.A2.CIGRE.ORG

Downloads Website

WWW.E-CIGRE.ORG

7

8

2018 47th Paris Session

Paris, France 26-31st August 2018 A2 Transformer Preferential Subjects;

• Thermal Characteristics

– Hotspot temperature modelling, – Core and steel temperatures – Overloads including components

• Advances in diagnostics and Modelling – High frequency models, UHF PD …

• Site Commissioning Tests

Thank You for Your attention

Documents

IEEE - Chair: Vice Chair: Secretary: Treasurer: Greg ...grouper.ieee.org/groups/transformers/meetings/F2017...for the latest revision of the unapproved and the minutes of the next