IEEE/PES Transformers Committee Spring 2013 - Working Group

Transformers Committee

Spring 2013 Meeting - Munich, Germany

March 17-21, 2013

Dolce Munich Hotel

Chair: Bill Chiu Vice Chair: Donald Platts Secretary: Stephen Antosz Treasurer: Gregory Anderson Standards Coordinator: William Bartley Past Chair: J. Edward Smith

IEEE/PES Transformers Committee

Spring 2013 Meeting Minutes

Munich, Germany March 17-21, 2013

Unapproved (These minutes are on the agenda to be approved at the next meeting in Fall 2013)

TABLE OF CONTENTS

1.0 ATTENDANCE

2.0 APPROVAL OF PREVIOUS MINUTES – STEPHEN ANTOSZ

3.0 CHAIR’S REMARKS & REPORT – BILL CHIU

3.1 CHAIR’S REMARKS

3.2 CHAIR’S REPORT

4.0 VICE CHAIR’S REPORT – DONALD PLATTS

5.0 SECRETARY’S REPORT – STEPHEN ANTOSZ

6.0 TREASURER’S REPORT – GREGORY ANDERSON

7.0 AWARDS REPORT – ED SMITH

8.0 ADMINISTRATIVE SC MINUTES – BILL CHIU

9.0 STANDARDS SC MINUTES & REPORT – WILLIAM BARTLEY

9.1 STANDARDS SUBCOMMITTEE MINUTES

9.2 STANDARDS REPORT

10.0 MEETINGS PLANNING SC MINUTES & REPORT – GREGORY ANDERSON

10.1 MEETINGS SUBCOMMITTEE MINUTES

10.2 MEETINGS REPORT

11.0 MINUTES OF TECHNICAL SUBCOMMITTEES

11.1 PERFORMANCE CHARACTERISTICS SC – ED TENYENHUIS

11.2 POWER TRANSFORMERS SC – JOE WATSON

11.3 UNDERGROUND TRANS & NETWORK PROTECTORS – CARL NIEMAN

11.4 BUSHINGS SC – PETER ZHAO

11.5 DRY TYPE TRANSFORMERS SC – CHARLES JOHNSON

11.6 DISTRIBUTION TRANSFORMERS SC – STEVE SHULL

11.7 DIELECTRIC TESTS SC – MICHAEL FRANCHEK

11.8 HVDC CONVERTER TRANSFORMERS & REACTORS – MIKE SHARP

11.9 INSTRUMENT TRANSFORMERS SC – ROSS MCTAGGART

11.10 INSULATING FLUIDS SC – SUSAN MCNELLY

11.11 INSULATION LIFE SC – BRUCE FORSYTH

12.0 EDITOR’S REPORT

13.0 LIAISON REPORTS

13.1 STANDARDS COORDINATING COMMITTEE NO. 4

13.2 IEC TC14 TECHNICAL ADVISOR TO USNC

13.3 CIGRE

14.0 UNFINISHED (OLD) BUSINESS

15.0 NEW BUSINESS

16.0 MEETING SCHEDULE

1.0 ATTENDANCE Summary totals at the end.

Part

1 2 Last Name First Name Company Name Membership Type

1 X X Ahuja Raj SPX Transformer Solutions, Inc. Committee Member

2 X Allan Dennis MerlinDesign Committee Member-IEEE Life

3 Allen Abbey Baron USA, Inc. Interested Individual

4 X X Amos Richard Unifin International Committee Member

5 X X Anderson Gregory GW Anderson & Associates, Inc. Committee Member

6 X X Angell Don Doble Engineering Co. Active Participant

7 X X Antosz Stephen Stephen Antosz & Associates, Inc Committee Member

8 X Antweiler James Schneider Electric/Square D Active Participant

9 Armstrong James Siemens Energy Active Participant

10 Aromin Venzon Phoenix Electric Corporation Active Participant

11 X Arpino Carlo A-Star Electric Co. Committee Member

12 X X Asano Roberto ABB Committee Member

13 Avelino Paulo Siemens Ltda Interested Individual

14 X X Ayers Donald Ayers Transformer Consulting Committee Member

15 X Ballard Robert ABB Inc. Committee Member

16 X Banovic Mladen ABB Interested Individual

17 Baranowski Derek Baron USA, Inc. Active Participant

18 X X Barnes Michael Retired (Qualitrol) Interested Individual

19 X X Bartley William Hartford Steam Boiler Committee Member

20 X X Beaster Barry Delta Star Inc. Committee Member

21 X X Beauchemin Claude TJH2b Analytical Services Committee Member

22 X X Bercea Emil ABB Interested Individual

23 Berler Zalya ZTZ Services International, Inc Active Participant

24 X X Berube Jean-Noel Neoptix Inc. Interested Individual

25 X X Betancourt Enrique Prolec GE Committee Member

26 Bidwell David Serveron Interested Individual

27 X X Binder Wallace WBBinder Consultant Committee Member-IEEE Life

28 X Bittner Carlos Reinhausen Mfg. Interested Individual

29 X X Blackmon, Jr James Georgia Power Co. Active Participant

30 X X Blaydon Daniel Baltimore Gas & Electric Committee Member

31 X Boege Alan Orto de Mexico Interested Individual

32 X X Boettger William Boettger Transformer Consulting Committee Member

33 X Bolliger Alain HV Technologies Active Participant

34 X X Boman Paul Hartford Steam Boiler Committee Member

35 X Bonmann Dietrich ABB AG Interested Individual

36 X X Brafa John ABB Inc. Active Participant

37 Brasher Jon ABB Inc. Interested Individual

38 X Brauer Stephan Morgan Schaffer Interested Individual

39 X Breckenridge Thomas TB TCS Ltd Interested Individual

40 X X Brender David Copper Development Assoc. Inc. Active Participant New CM

41 X X Britton Jeffrey Phenix Technologies, Inc. Active Participant

42 X X Brocke Lars Haefely Test AG Interested Individual

43 X X Brodeur Samuel ABB Inc. Interested Individual

44 X X Bromley Adam Fort Collins Utilities Active Participant

45 X X Buchanan Paul Moloney Electric Inc. Committee Member

46 X Buckmaster David Transformer Forensics, LLC Active Participant New CM

47 X Burde Jagdish Virginia Transformer Corp. Active Participant

48 X X Bush Carl Pemco Corporation Committee Member

49 X Campbell James Dominion Virginia Power Active Participant

50 X X Castellanos Juan Prolec GE Committee Member

51 Cayachoa Carlos Siemens S.A. Interested Individual

52 X X Cheng Cheng Moloney Electric Inc Interested Individual

53 X X Cherry Donald ABB Inc. Committee Member

54 X X Chiu Bill Southern California Edison Committee Member

55 X X Claiborne C. Clair ABB Inc. Committee Member

56 X X Colopy Craig Cooper Power Systems Committee Member

57 Costa Florian Corimpex USA, Inc. Active Participant

58 X X Craven Michael Patterson & Dewar Engineers Active Participant

59 Crawford Christy Reinhausen Mfg. Interested Individual

60 Cuesto Miguel Asea Brown Boveri S.A. Interested Individual

61 Cunningham Kelcie EFACEC Interested Individual

62 X Damico Frank TAMINI Transformers USA Committee Member

63 X X Darwin Alan Independent Committee Member

64 X Dastous Jean-Bernard Hydro-Quebec IREQ Interested Individual

65 X Davis Eric Burns & McDonnell Committee Member

66 X X Davydov Valery Mr. Valery Davydov Active Participant

67 de la Cruz Dan Ocampo-Esta Corp. Active Participant

68 De Pablo Alfonso General Electric Digital Energy Interested Individual

69 X X Del Rio J. Arturo Trench Limited Active Participant New CM

70 Denzer Stephanie General Electric Interested Individual

71 DeVries Derk Siemens Energy Interested Individual

72 X Digby Scott Progress Energy Active Participant

73 X Dix Larry Quality Switch, Inc. Committee Member

74 X Dorpmanns Luc SMIT Transformatoren B.V. Interested Individual

75 X X Dr Dohnal Dieter Maschinenfabrik Reinhausen Committee Member

76 X X Duplessis Jill OMICRON electronics Corp USA Interested Individual

77 X X Elliott Fred Bonneville Power Administration Committee Member

78 X X Esmet George Megger Interested Individual

79 Euvrard Eric RHM International Interested Individual

80 X X Fausch Reto Hubbell High Voltage Test Active Participant

81 Fedor Ken SMIT USA Interested Individual

82 Feghali Pierre N. American Substation Services Committee Member

83 Fernandes Tania EFACEC Active Participant

84 Field Norman Weidmann Diagnostic Solutions Active Participant

85 X Foldi Joseph Foldi & Associates, Inc. Committee Member-IEEE Life

86 X Forrest George Delta-X Research USA, Inc. Active Participant

87 X X Forsyth Bruce Southwest Electric Co. Committee Member

88 X X Franchek Michael Weidmann Electrical Technology Committee Member

89 X X Frimpong George ABB Inc. Active Participant

90 Frotscher Rainer Maschinenfabrik Reinhausen Interested Individual

91 X X Gagnon Jean-Philippe Nomos Systems Interested Individual

92 Ganser Jr. Robert OTC Services Interested Individual

93 Gao Chang Hong ABB Inc. Interested Individual

94 X X Garcia Eduardo Siemens Committee Member

95 X X Gardner James NRECA International Committee Member

96 Gautier Francois NYCO Interested Individual

97 X Gaytan Carlos Prolec GE Committee Member

98 X Girgis Ramsis ABB Inc. Committee Member-IEEE Life

99 X Golarz Jeffrey LumaSense Interested Individual

100 X Gonzalez Jorge Orto de Mexico Active Participant

101 X X Graham James Pike Energy Solutions Committee Member

102 X X Graham John Siemens TDL Committee Member

103 X Gross Detlev Power Diagnostix Interested Individual

104 Guild Alvin Phenix Technologies Inc. Interested Individual

105 X Gulkarov Vladimir Onyx Power / Smiths Group Interested Individual

106 X Hachichi Said Hydro-Quebec Committee Member

107 Haebel Ruediger ThyssenKrupp Electrical Steel Interested Individual

108 Hall A C Power Transformers & Reactors Committee Member

109 X X Hanson David TJH2b Analytical Services Active Participant

110 X X Harley John FirstPower Group LLC Committee Member

111 Harrison Ken NASS Interested Individual

112 X X Hauschild Wolfgang Dr. W. Hauschild Active Participant

113 X X Hayes Roger ALSTOM Grid Committee Member

114 Heathcote Martin Martin Heathcote Associates Ltd Active Participant

115 X Heinzig Peter Weidmann Electrical Technology Committee Member

116 Henkel Sebastian LumaSense Technologies GmbH Interested Individual

117 X Henning William Retired Committee Member

118 X X Herron John High Volt - Reinhausen Active Participant

119 X X Herz Josh Qualitrol Active Participant

120 Hildreth Eric PCORE Electric Co. Interested Individual

121 Hinow Martin HIGHVOLT Active Participant

122 X X Hochanh Thang Alstom Committee Member

123 X Hoffman Gary Advanced Power Technologies Committee Member

124 X X Holdway Timothy Intermountain Electronics Committee Member

125 X X Hopkinson Philip HVOLT Inc. Committee Member-IEEE Life

126 X Hurlet Patrice EDF Interested Individual

127 X Iman Mike MGM Tansformer Company Committee Member

128 Inkpen Jesse BPLG - Serveron Interested Individual

129 X X Izquierdo Jose Siemens Servicios S.A de C.V Active Participant

130 Jacob Nathan Manitoba Hydro Interested Individual

131 X X Jacobsen Dallas Schweitzer Engineering Labs Interested Individual

132 X Jakob Fredi Consultant Active Participant

133 X X James, Jr. Rowland Advanced Power Technologies Committee Member

134 X X Jarman Paul National Grid Active Participant

135 X X Jauch Erwin Beckwith Electric Co. Active Participant-IEEE Life

136 X Johannson Larry T&D Products Ltd. Active Participant

137 X John John Virginia Transformer Corp. Active Participant

138 Johnson Derek Reinhausen Mfg. Interested Individual

139 Juchem Kevin ABB AG Interested Individual

140 X X Kennedy Gael Nebraska Public Power District Committee Member

141 X X Kennedy Sheldon Niagara Transformer Committee Member

142 X Khalin Vladimir Retired Committee Member

143 X X Kinner Robert First Power Group LLC Interested Individual

144 X X Kiparizoski Zan Howard Industries Interested Individual

145 X X Kirchenmayer Egon Siemens AG Interested Individual

146 X X Kirchner Lawrence Siemens Energy Active Participant

147 X X Klaponski Brian Carte International Inc. Committee Member

148 Knuth Wesley Salt River Project Interested Individual

149 Koch Maik Omicron Energy Interested Individual

150 X X Kornowski Marek Polycast International Interested Individual

151 Koshorst Ruediger ThyssenKrupp Electrical Steel Interested Individual

152 X X Kraemer Axel Maschinenfabrik Reinhausen Active Participant

153 X X Kraetge Alexander OMICRON Committee Member

154 X Kropp Hans-Walter ABB AG Interested Individual

155 Krump Reiner HSP Hochspannungsgeraete Active Participant

156 X X Kurth Bernhard Reinhausen Mfg. Active Participant

157 X X Lachman Mark Doble Engineering Co. Interested Individual

158 X Ladroga Richard Risk Management International Committee Member

159 X Lakhiani Virendra Transformers & Rectifiers (India) Interested Individual

160 X Landis Ben Transformer Protector Corp Interested Individual

161 X Lapota Michael Calumet Specialty Products Partners Interested Individual

162 X X Larochelle David NDB Technologies Interested Individual

163 X X Lau Michael Weidmann Diagnostic Solutions Committee Member

164 X Lawless Andrew Siemens Energy Interested Individual

165 X X Lawrence Matthew Doble Engineering Co. Interested Individual

166 X X Lee Min Jea Hyosung Active Participant

167 X Leinhauser George PECO Energy Interested Individual

168 X Leiva Jorge Tubos Trans Electric Interested Individual

169 X X Levin Aleksandr Weidmann Electrical Technology Active Participant

170 X X Livingston Kerry Great River Energy Active Participant

171 Locarno Mario Doble Engineering Co. Active Participant

172 X X Lopez-Fernandez Xose Universidade de Vigo Committee Member

173 X X Luksich John Cargill, Inc. Active Participant

174 Mamtora Jitendra Transformers & Rectifiers (India) Active Participant

175 X X Marek Richard DuPont Committee Member

176 X X Marlow Dennis DenMar TDS Committee Member

177 X X McBride James JMX Services, Inc. Active Participant

178 X McClure Phillip Weschler Instruments Committee Member

179 X McIver James Siemens Energy Active Participant

180 X X McNelly Susan Xcel Energy Committee Member

181 X X McShane Charles Patrick Cargill Inc Committee Member

182 X X McTaggart Ross Trench Limited Committee Member

183 X X Mehrotra Vinay SPX Transformer Solutions, Inc. Committee Member

184 X Melle Thomas Siemens Industry Active Participant

185 Meyers Aaron Cooper Power Systems Interested Individual

186 X X Millward Paul ITEC Committee Member

187 Moleski Hali S.D. Myers Inc. Active Participant New CM

188 X Morakinyo Paul PSE&G Interested Individual

189 X Morales-Cruz Emilio Qualitrol Interested Individual

190 X X Mukerji Amitav ABB Inc. Committee Member

191 X Mulherin Anthony M&I Materials Ltd Interested Individual

192 X X Murphy Jerry Reedy Creek Energy Services Committee Member

193 X X Murray David Tennessee Valley Authority Active Participant

194 X X Mushill Paul Ameren Active Participant

195 X Naderian Ali Kinectrics Active Participant

196 X X Nguyen Van Nhi Hydro-Quebec Committee Member

197 Nikoley Ingo Siemens Energy Active Participant

198 X Nordman Hasse ABB Oy, Transformers Active Participant

199 Nunez Arturo Mistras Group Inc. Interested Individual

200 X Nunn Shawn OTC Services Interested Individual

201 X Oakes Stephen CG Power Systems Interested Individual

202 X X Ostrander David Ameren Active Participant

203 Padilla Axayacatl INEVA Interested Individual

204 Panetta Sergio I Gard Corporation Active Participant

205 X Patel Dhiru Hammond Power Solutions Inc. Active Participant

206 X X Patel Poorvi ABB Inc. Active Participant

207 X Patel Sanjay Smit Transformer Sales, Inc. Active Participant

208 Pattou Arnaud JST Transformateurs Interested Individual

209 X X Payerle George Carte International Inc. Active Participant

210 X X Penny Brian American Transmission Comp Committee Member

211 X X Pepe Harry Phenix Technologies, Inc. Interested Individual

212 X X Perjanik Nicholas Weidmann Diagnostic Solutions Interested Individual

213 X Perkins Mark ABB Inc. Committee Member

214 X X Petosic Branimir BI&I Interested Individual

215 X X Pezzin Justin IFD Corporation Committee Member

216 X Plante Nicolas IREQ Interested Individual

217 X X Platts Donald SPX Transformer Solutions, Inc. Committee Member

218 Ploetner Christoph ABB Inc. Committee Member

219 X X Pointner Klaus Trench Austria GmbH Committee Member

220 X X Poulin Bertrand ABB Inc. Committee Member

221 X X Prevost Thomas OMICRON electronics Corp USA Committee Member

222 Quandel Jennifer HPN Global Interested Individual

223 X X Radbrandt Ulf ABB Committee Member

224 X Rasco Jimmy Ergon, Inc Interested Individual

225 Rashid Adnan Measurement Canada/Industry Interested Individual

226 X Rasor Robert S.D. Myers Inc. Committee Member

227 X X Recksiedler Leslie Manitoba Hydro Int. Active Participant

228 X X Reeves Jerry EFACEC Active Participant

229 X X Reiss IV Clemens Custom Materials, Inc. Active Participant

230 X X Riffon Pierre Hydro-Quebec Committee Member

231 Rijnsoever Frank SMIT Transformatoren B.V. Interested Individual

232 Rinks Timothy Reinhausen Mfg. Interested Individual

233 X Rivers Mark Doble Engineering Co. Interested Individual

234 X X Roach John Hartford Steam Boiler Interested Individual

235 X Robalino Diego Megger Active Participant

236 X Roizman Oleg IntellPower Pty Ltd Interested Individual

237 X Roman Zoltan ALSTOM Grid Interested Individual

238 X X Roussell Marnie Entergy Committee Member

239 X Sarkar Amitabh CG Power Systems USA Inc Interested Individual

240 X Sarkar Subhas Virginia Transformer Corp. Committee Member

241 X X Sauer Daniel Cooper Power Systems Committee Member

242 X X Sauls Roderick Southern Company Services Interested Individual

243 X X Sauzay Mathieu JST Transformateurs Active Participant

244 X Schickedanz Frank Reinhausen Group Active Participant

245 X Schleismann Eric Southern Company Interested Individual

246 Schneider Jeffrey Cooper Power Systems Interested Individual

247 Schnider Bruno ABB Switzerland Ltd. MICAFIL Interested Individual

248 X Schommer Peter Minnesota Power Interested Individual

249 X X Schrammel Alfons Siemens Transformers Weiz Interested Individual

250 Schroeder Karsten MTE AG Interested Individual

251 X Schweiger Ewald Siemens AG Committee Member

252 X Sewell Adam Quality Switch, Inc. Interested Individual

253 X X Sewell Jeremy Quality Switch, Inc. Committee Member

254 X Sewell Russell Quality Switch, Inc. Interested Individual

255 X Shannon Michael Rea Magnet Wire Interested Individual

256 Sharkey John Sheridan Electric Sales Interested Individual

257 X X Sharma Devki Entergy Committee Member

258 Sharp Michael Trench Limited Committee Member

259 Shem-Tov Mark Von Roll Transformers Interested Individual

260 X X Shertukde Hemchandra University of Hartford Committee Member

261 Shields Wayne Minnesota Power Interested Individual

262 X X Shull Stephen The Empire District Electric Co Committee Member

263 X Simmons Charles Progress Energy Active Participant

264 X Simon Preston Electrical Technologies Interested Individual

265 X X Sizemore Thomas ABB Inc. Committee Member

266 X X Skinger Kenneth CBI Interested Individual

267 X Sohn Yong Tae Hyosung Interested Individual

268 X X Som Sanjib Siemens Industry, Inc. Committee Member

269 Song Kwang Jae Korea Testing Laboratory Interested Individual

270 X X Spiewak Erin IEEE Interested Individual

271 Stank Markus Maschinenfabrik Reinhausen Active Participant

272 X Stiegemeier Craig ABB Inc. Committee Member

273 X Stretch Kerwin SGB USA, Inc. Interested Individual

274 X Sullivan Christopher Heartland Solutions, Inc. Active Participant

275 X Sundqvist Pontus ABB Power Products Interested Individual

276 Susa Dejan Statnett AS Interested Individual

277 X X Sweetser Charles OMICRON electronics Corp USA Active Participant New CM

278 X X Swinderman Craig Mitsubishi Electric Power Products Committee Member

279 X Szewczyk Radoslaw DuPont Poland Sp. z o.o. Interested Individual

280 X Tanaka Troy Burns & McDonnell Interested Individual

281 X Tendulkar Vijay ONYX Power, Inc. Interested Individual-IEEE Life

282 X X teNyenhuis Ed ABB Inc. Committee Member

283 X X Termini Giuseppe PECO Energy Committee Member

284 X Tolcachir Eduardo Tubos Trans Electric S.A. Interested Individual

285 X Tong Lin SYET Active Participant

286 X X Tostrud Mark Dynamic Ratings, Inc. Interested Individual

287 X X Traut Alan Power Partners Committee Member

288 X Trautmann Frank Siemens AG Interested Individual

289 Tridon Florence Transrail Boige et Vignal Interested Individual

290 X X Trummer Edgar VACE Committee Member

291 X Verner Jane Ann Pepco Holdings Inc Committee Member

292 X Viereck Karsten Maschinenfabrik Reinhausen Active Participant

293 X X Vir Dharam SPX Transformer Solutions, Inc. Committee Member

294 X vonGemmingen Richard Dominion Active Participant

295 X X Wallace David ABB Inc. Committee Member

296 X X Wallach David Duke Energy Committee Member

297 X X Watson Joe ZTZ Services Committee Member

298 Weathington Larry N. American Substation Services Active Participant

299 X Websper Richard ALSTOM Grid UK Limited Active Participant

300 X Werelius Peter Megger Active Participant

301 X X Wicks Roger DuPont Committee Member

302 Williams Charles Megger Interested Individual

303 X X Williams Michael ABB Inc. Active Participant

304 Williams Randy ABB Inc. Active Participant

305 X X Wimberly Barrett ALSTOM Grid Interested Individual

306 X X Wong Raymond North America Electrical Equipment Interested Individual

307 X Woodcock David WICOR Americas Committee Member

308 Wuttke Benjamin Lumasense Technologies GmbH Interested Individual

309 Xu Yan TBEA Canada Interested Individual

310 Yalla Murty Beckwith Electric Active Participant

311 X X Yang Baitun Pennsylvania Transformer Committee Member

312 Young Samuel Reinhausen Mfg. Interested Individual

313 X X Young William ALSTOM Grid Interested Individual

314 Yu Jennifer Pacific Gas & Electric Committee Member

315 X X Yule Kipp Bechtel Power Corp Committee Member

316 Zarmandily Hassan Sigma Consulting Group Interested Individual

317 Zhang Shibao PCORE Electric Active Participant

257 attended either Part 1 or 2 Part 1 is on Monday.

150 attended both Parts 1 & 2 Part 2 is on Thursday.

79 attended Part 1 only Committee members should

attend at least once.

28 attended Part 2 only

77 attended neither We did not have a quorum. There are 223 committee

members; 108 attended either Part 1 or Part 2.

These total numbers also include the 17 attendees who signed in on the next page.

Attendees who signed in at the meeting:

Name Attendance Company

1 Jinho Kang Attended Parts 1 and 2 Hyundai Heavy Industries

2 Jaeseung Park Attended Parts 1 and 2 Hyundai Heavy Industries

3 Lutz Ulbricht Attended Part 1 Phenix Tech

4 Kaineder Kurt Attended Part 1 Siemens Transformers Linz

5 Erich Buchgeher Attended Part 1 Siemens Transformers Linz

6 Robert Mayer Attended Part 1 Siemens Transformers Linz

7 Peter Hamberger Attended Part 1 Siemens Transformers Linz

8 Zazueta Filiberto Attended Parts 1 and 2 CFE - LAPEM

9 Manuel Guzman Attended Parts 1 and 2 CFE - LAPEM

10 Mark Warren Attended Part 1 Unifin

11 David Sundin Attended Part 1 Consultant for DSI Ventures

12 Dawn Allen Attended Part 1 DSI Ventures, Inc,

13 Patrice Roulet Attended Part 2 EDF

14 Alfonso de Paslo Attended Part 2 General Electric

15 Michael Schmidt Attended Part 2 SGB Transformer Regensburg

16 Gal Brandes Attended Part 2 ABB Pucaro

17 Mcaden Banoid Attended Part 2 ABB

2.0 APPROVAL OF PREVIOUS MINUTES – STEPHEN ANTOSZ

The Minutes from the Milwaukee meeting were approved as written.

3.0 CHAIR’S REMARKS & REPORT – BILL CHIU

3.1 CHAIR’S REMARKS

Good Morning and Welcome to Munich! For those of you who I have not had the pleasure of meeting in person, my name is Bill Chiu and it is my privilege to serve you in my capacity as the Chair of the Transformers Committee. My other full time job is with Southern California Edison where I am responsible for a variety of engineering activities from substation infrastructure, to generation interconnection facilities, to protection/control and automation for all of our bulk power assets within the substation fence. I wish to express, on behalf of the Transformers Committee, our thanks to the local host team, Bernhard Kurth, and the rest of the hardworking team members from Reinhausen Manufacturing for all that they have done in planning for this meeting and showing us their hospitality. Congratulation to Peter Balma and Jim Harlow on their IEEE Fellowships. Round of applause. At the last meeting in Milwaukee, I talked about what we all devote to Transformers Committee activities, and just want to remind you to find that passion and get energized for what makes you devote the time and the energy to the this important work that we do here. Brief report from the Administrative Subcommittee meeting: • A Task Force was formed to investigate and make recommendations on WG Data

Confidentiality, Storage, Access, and Use. The following people volunteered or were appointed to the Task Force:

Tom Prevost, Chair Sue McNelly Mike Franchek Bill Bartley Erin Spiewak Joe Watson Peter Balma

A report should be given at the next meeting in St. Louis.

• GMD/GIC Position Paper via IEEE Technical Council: The TF is near to a final draft on the paper. It will be submitted to Power & Energy magazine for publication in the July issue.

• Meeting Improvement Initiative – Activity Leader Training Guide. A Task Force was formed

to make recommendations for activity leader training and development of an internal guide for best practices in managing the work and flow of Task Forces and Working Groups. The following people volunteered or were appointed:

Gary Hoffman – Chair

Don Platts - Vice Chair Bruce Forsyth – Member

Bill Bartley - Member John D. (J.D.) Brafa – Member

A report should be given at the next meeting in St. Louis.

3.2 CHAIR’S REPORT

3.2.1 IEEE Power & Energy Society Technical Council Activities The Technical Council of the IEEE Power Energy Society (PES) is presently composed of the Chairpersons of the PES Technical Committees, plus the Chairpersons of Standing Committees reporting to it. The Power Energy Society is Division VII of The Institute of Electrical and Electronics Engineers (IEEE). For operating functions it is responsible to the IEEE Technical Advisory Board and for technical activities to the IEEE Technical Activities Board. The PES Technical Committees report to the Technical Council on matters concerning membership, technical publications, recognition, scope and the coordination of Power Energy Society generated standards. For standards relating to their technical scope, the Technical Committees work directly with the IEEE Standards Board and the Power Energy Society Standards Coordinating Committee. Please see http://www.ieee-pes.org/technical-activities/technical-council for further details on the Statement of Purpose and Scope of Activities for the PES Technical Council.

3.2.2 Technical Council Officers & Membership Beginning with the 2013 calendar year, the Technical Council of the IEEE Power Energy Society (PES) has a new leadership team in place. The new officers and members of the Technical Council are listed below for your reference. Where available, the affiliation of the members is also shown in parentheses. TECHNICAL COUNCIL OFFICERS Jeffrey H. Nelson, Chair (TVA) S. S. (Mani) Venkata, Vice Chair (Alstom) Ken Edwards, Secretary (BPA) Damir Novosel, Past Chair (Quanta Technology) STANDING COMMITTEES Awards Committee - John Randolph, Chair (PG&E) Meetings & Marketing Committee - Mani Venkata, Chair (Alstom) Organization & Procedures Committee - Ken Edwards, Chair (BPA) Standards Coordination Committee - Bill Bartley, Chair (HSB) Technical Sessions Committee - Mani Venkata, Chair (Alstom) COORDINATING COMMITTEES Emerging Technologies Coordinating Committee - Branislav Djokic, Chair Intelligent Grid Coordinating Committee - Erich W. Gunther, Chair Marine Systems Coordinating Committee - Paul Bishop, Chair (consultant) Wind and Solar Power Coordinating Committee - Richard J. Piwko, Chair

TECHNICAL COMMITTEES Electric Machinery Committee - Mike Sedlak, Chair (Edison Mission Energy) Energy Development and Power Generation Committee - Om Malik, Chair Insulated Conductors Committee - John Smith, Chair (General Cables) Nuclear Power Engineering Committee - S. K (Satish) Aggarwal, Chair Power System Analysis, Computing, and Economics Committee - Sandoval Carneiro, Jr., Chair Power System Communications Committee - Dan Nordell, Chair Power System Dynamic Performance Committee - Nikos Hatziargyriou, Chair Power System Instrumentation and Measurements Committee - R. Arseneau, Chair Power System Operations Committee - William (Bill) Cassel, Chair (consultant) Power System Planning and Implementation Committee - M. L. Chan, Chair (consultant) Power System Relaying Committee – Roger Hedding, Chair (ABB) Stationary Battery Committee - William (Bill) Cantor, Chair

Substations Committee – Mike Dodd, Chair (Sweitzer) Surge Protective Devices Committee - Ron Hotchkiss, Chair Switchgear Committee – Ted Olsen, Chair (Siemens) Transformers Committee - Bill Chiu, Chair (SCE) Transmission and Distribution Committee - W. A. Chisholm, Chair

3.2.3 Highlights of PES Technical Council November 2012 Retreat The Technical Council held a retreat in November of 2012 to address some of the longer term strategic issues facing the PES organization. Members of the Technical Council were surveyed on a variety of issues and opportunities that are available to us. The survey and the response summary is included below for your reference. The Chair would like to thank the members of our own Administrative Subcommittee for providing input to the survey.

The variety of issues identified in the survey feedback were used as the starting point of the discussion at

the retreat. After a day of dialogue, a shorten list of items were identified and prioritized through an

informal voting process with the results shown below:

1. Tools to Enhance Technical Committee And Leaders’ Effectiveness (16 Votes)

2. Committee Structure And Coordination (15 Votes)

3. Improving International Involvement & Presence (11 Votes)

4. PES Leader Training (11 Votes)

5. PES Member Training (11 Votes)

6. Information Transmittal To Technical Committee Leaders (10 Votes)

7. Strengthening PES Technical Committee Awareness And Participation

a. 7a) PES Technical Committee Membership And Recruiting (9 Votes)

b. 7b) Articulate Benefits To Professionals Of PES Participation

c. 7c) Improve Branding Of PES Technical Committees As Expert Technical Bodies (8

Votes)

8. Publications And Access Issues (8 Votes)

9. Identifying Best Practices For Standards Development (7 Votes)

10. PES Presentation To The World (6 Votes)

11. IEEE, IEC, CIGRE and PES (6 Votes)

12. Other Topics The Group Didn’t Address In Detail

The summary report from the Technical Council retreat is also included below for you reference

3.2.4 Update on Geomagnetic Disturbance (GMD) Taskforce

The Technical Council Taskforce on GMD is continuing to make progress on the development of the position paper since last year. At this point the taskforce is working on the third draft of the position paper. There is plan underway to seek publication of either the entire paper or a condensed version of the paper in the PES Power & Energy Magazine later this year to coincide with the GDM Super Session planned at the PES General Meeting in July, 2013 at Vancouver Canada. It is anticipated that the position paper will be completed in April of 2013. This is a little behind the original schedule set back at the end of last year, primarily due to the additional scope of further analysis on transformers hot spots based on a recorded GIC profile of the GMD event that occurred during the March 13-14, 1989 solar storm.

3.2.5 Transformers Committee Activities

3.2.5.1 Subcommittee Chairpersons & Technical Editor I would like to extend a warm welcome to our newest member – Michael Franchek. Mike was appointed his new role earlier this year as our incoming Dielectric Tests Subcommittee Chair, replacing Loren Wagenaar who resigned at the end of last year. We will miss Loren as part of the leadership group and would like to thank Loren for his long tenure of dedicated service to the Transformer Committee and to our industry. We wish Loren all the best in the future. Our current roster of the Subcommittee Chairs and Editor are:

• Bushings Subcommittee Peter Zhao • Dielectric Test Subcommittee Michael Franchek • Distribution Transformers Subcommittee Stephen Shull • Dry-Type Transformers Subcommittee Charles Johnson • HVDC Converter Transformers & Smoothing Reactors Subcommittee Michael Sharp • Instrument Transformers Ross McTaggart

• Insulating Fluids Subcommittee Susan McNelly • Insulation Life Subcommittee Bruce Forsyth • Meetings Subcommittee Gregory Anderson • Performance Characteristics Subcommittee Ed teNyenhuis • Power Transformers Subcommittee Joe Watson • Standards Subcommittee William Bartley • Underground Transformers & Network Protectors Subcommittee Carl Niemann • Technical Editor Sanjib Som

All of them have committed to serve the duration of the calendar year 2013. PES Technical Council was notified of the Subcommittee Chairs and Technical Editor appointments for the calendar year 2013 in accordance with the guideline set forth in our O&P Manual.

3.2.6 IEEE Senior Membership

IEEE membership has several categories, with the senior level being the highest grade which a member can apply. IEEE has developed a streamlined process for members to request elevation of their membership status. The process is simply and can be done entirely on-line. The Chair strongly encourages everyone that have been an active contributor to the industry for at least five years to apply for this elevation in membership status. The basic qualifications are:

• be engineers, scientists, educators, technical executives, or originators in IEEE-designated fields;

• have experience reflecting professional maturity; • have been in professional practice for at least ten years; • show significant performance over a period of at least five of their years in professional

practice. Benefits of becoming a senior member include: • Recognition: The professional recognition of your peers for technical & professional

excellence. • Senior member plaque: Since January 1999, all newly elevated Senior members have

received an engraved Senior Member plaque to be proudly displayed for colleagues, clients and employers to see. The plaque, an attractive fine wood with bronze engraving, is sent within six to eight weeks after elevation.

• US$25 coupon: IEEE will recognize all newly elevated Senior members with a coupon worth up to US$25. This coupon can be used to join one new IEEE society. The coupon expires on 31 December of the year in which it is received.

• Letter of commendation: A letter of commendation will be sent to your employer on the achievement of Senior member grade (upon the request of the newly elected Senior member).

• Announcements: Announcement of elevation can be made in section/society and/or local newsletters, newspapers and notices.

• Leadership Eligibility: Senior members are eligible to hold executive IEEE volunteer positions.

• Ability to refer other candidates: Senior members can serve as a reference for other applicants for senior membership.

• Review panel: Senior members are invited to be on the panel to review senior member applications.

• US$25 referral coupon: Newly elevated Senior members are encouraged to find the next innovators of tomorrow and invite them to join IEEE. Invite them to join and the new IEEE member will receive $25 off their first year of membership.

3.2.7 Committee Membership

All are welcome to participate in the work of the Transformers Committee. Membership in the Committee provides recognition of your peers and indication to your co-workers and management of your active role in Committee work. If you are presently not a Main Committee Member, and you have been actively participating in our work for at least two full year – and can secure the acknowledgement and sponsorship of at least 3 activity Chairs (WGs, but must include at least one Subcommittee Chair) affirming that participation, the Committee will look forward to welcoming you as a member. Membership requirements and application forms can be found in the Organization and Procedures Manual posted on the Committee website.

As our organization is a 100% volunteer based organization, we are very much in need of all of your continued participation and sharing of your expertise towards our world-class standards development efforts. Many of our long-standing committee members have made tremendous contributions towards our standards development effort over the years and their contributions are greatly appreciated.

4.0 VICE CHAIR’S REPORT – DONALD PLATTS

4.1 IEEE PES Calendar of Upcoming Events

The list below shows the upcoming PES sponsored conferences and committee meetings. Please check the PES website at www.ieee-pes.org for further details.

PES 2013 General Meeting 21-25 July, 2013, Vancouver, British Columbia, Canada

2013 North American Power Symposium (NAPS 2013) Sept 22 - 24, 2013 Location: Manhattan, KS, USA

2014 IEEE PES Joint Technical Committee Meeting (JTCM 2014) Date ? Location: To be determined

2014 IEEE/PES Transmission & Distribution Conference & Exposition (T&D) Mon, Apr 14, 2014 - Thu, Apr 17, 2014 Chicago IL

PES 2014 General Meeting Date ? Location: To be determined

4.1.1 Conference Papers presented

4.1.1.1 2013 PES General Meeting (Vancouver, Canada July 21-25)

A total of 22 conference papers were submitted. After review, 7 papers were scheduled for presentation at the Poster Session, 2 for the Paper Session and 4 for the Paper Forum. A large number -9 were rejected.

In addition, 4 authors of Transactions papers, that have been previously published, requested the opportunity to present their papers. Per the rules of the PES Tech Council, they will be scheduled, as requested. The presentation will be a joint session with PSIM, who will chair this session. The papers that were accepted for presentation are:

ID Title

GM0015 Impact of High PV Penetration on Distribution Transformer Life

GM0285 Impact of PEV Charging and Rooftop PV Penetration on Distribution Transformer Life

GM0792 Modal Parameters Identification of Power Transformer Winding Based on Hilbert-Huang Transform

GM0886 Simulation Analysis of Geomagnetically-Induced Currents (GIC) Effects on Shell-Form Transformers

GM1119 Study of Transformer Winding Deformation by Frequency Response Analysis

GM1238 A Tank Vibration Model For Online Monitoring of Power Transformer

GM1252 Power Transformer Immune to Geomagnetically Induced Currents

GM1409

Energizing and de-energizing of a 250 MVA transformer of a pumped storage power-plant:

Modelling and its validation by on site tests

GM1412 Design and Implementation of Vibration On-line Monitoring System of Power Transformer

GM1415

Impact of the representation of the upstream network on the energization of a 340 MVA

transformer: modelling and its validation by on site tests

GM1717 A Topology for Three-stage Solid State Transformer

GM2046 Methodology for Evaluating the Impact of GIC and GIC Capability of power Transformer Designs

GM2135 Impact of Axial Displacement on Power Transformer FRA Signature

4.1.2 Upcoming Conference Papers Schedules 2014 IEEE PES Power Systems Conference & Exposition Chicago IL --The time line for paper submission is from July 22 to August 19 2013. The Theme of the conference is Fifty Years of Engineering Solutions 2014 PES General Meeting Location Not Yet Published --The deadline for paper submission will probably be in November 2013.

4.1.3 Changes to IEEE PES Conference Paper Rules This portion of the report is copied from the Falll 2012 meeting report. Changes or updates are shown in italics. The IEEE PES explanation of these changes is published and can be reviewed at http://pes-gm.org/2013/index.php/call-for-papers.

4.1.3.1 Conference Paper Submission Requirements The paper length has been reduced to 5 pages. Part 1 and Part 2 papers will not be permitted. The maximum paper length has been reduced to 5 pages. Papers that are divided into Part 1 and Part 2 will not be permitted.

4.1.3.2 Conference Paper Presentations There will be no Transformers Committee Paper Presentation sessions. The majority of accepted conference papers will be scheduled for presentation at the Monday evening poster session. Presentation of an accepted paper at the conference is a requirement of publication. Any paper not presented at the conference will not be included in IEEE Xplore. The papers judged to be in the top 60-80 of all accepted conference papers will be selected to be presented in a Conference Paper Session. [Each Committee will have an allocation of papers that they may submit]. The participating Author will be allowed 8 minutes to present the paper and will be allowed to use a maximum of 6 PowerPoint slides. A few of the top 60 to 80 conference papers will be chosen and recognized as General Meeting Conference Prize Papers, during the Tuesday Awards dinner.

4.1.3.3 Paper Forum At the 2013 General Meeting, there will also be a paper forum session. The time allotted for presentation of Transactions papers was not filled, so a decision was made to insert the Paper Forum. Here a limited number of the conference papers accepted for publication will be scheduled for presentation. This will allow the author a 4 minute time slot to describe the paper. At the conclusion of the session, each author must be prepared to appear with a poster of the paper to be displayed at the back of the room. All questions will be addressed during this poster session.

4.1.3.4 Transactions Paper Presentations The PES Technical Committees will be selecting published Transactions papers for presentation at the 2013 General Meeting. An author of an accepted PES Transactions paper who is interested in presenting it at the 2013 PES General Meeting must upload the full paper, in addition to the paper's abstract, to the on-line submission and review site by the deadlines listed above. The appropriate Technical Committee Program Chair (TCPC) will determine if the topic of the paper is suited for presentation in one of the technical sessions.

4.1.3.5 Special Issue Transactions Paper Presentations: Beginning in 2013, select papers from Special Issue PES Transactions will be presented at the PES General Meeting. The Special Issues have already been identified for 2013, but authors are encouraged to submit papers to future special issues. Information on planned Special Issue PES Transactions can be found at: http://www.ieee-pes.org/calls-for-transactions

4.1.3.6 Panel Sessions The Transformers Committee will have the opportunity to sponsor a panel session at future conferences. We have not yet considered this type of presentation at any future conference. Panelists will not be required to write summary papers to participate in panel sessions. Only PowerPoint presentations are required. Invited panelists are free to submit a conference paper on the topic they are asked to present, if they so choose, but it must be submitted to the on-line submission and review site by the conference paper submission deadlines listed above and it will be reviewed for acceptance under the same criteria as all conference paper submissions. Participation as a panelist does not guarantee that your conference paper submission will be accepted and published.

5.0 SECRETARY’S REPORT – STEPHEN ANTOSZ

5.1 Membership Review

Voting Committee Members – Six new committee members were approved and added at the Milwaukee meeting as shown in the table below:

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

Jeremy A. Sewell

Quality Switch, Inc

Carl Nieman UTNP SC

(7yrs)

Phil Hopkinson WG C57.157 DETC (7yrs)

Brian Klaponski WG C57.12.40

Network Xfmr(7yrs) Producer

Robert T. Rasor

S.D. Myers, Inc.

Susan McNelly Insulating Fluids

SC (3 yrs)

Richard Ladroga WG C57.104 DGA (7yrs)

Tom Prevost TF Furans

(3yrs)

General Interest

David Archie

Wallace

ABB/Kuhlman Electric

Loren Wagenaar Dielectirc Test

SC (2 yrs)

Ross McTaggert Instrumnt Trans

SC (2 yrs)

Pierre Riffon WG Rev to Impulse

Tests (2 yrs) Producer

Roberto Asano Junior

ABB

Don Platts/Bruce Forsyth

Insulation Life SC (4 yrs)

Peter Zhao WG C57.156 Tank Rupture

(2yrs)

Richard Marek WG C57.154 High Temp Insul (4yrs)

Producer

Brian R. Penny

American Transmission

Company

Art Molden PC57.98 Impulse

Guide (2 yrs)

Phil Hopkinson WG C57.157 DETC (2 yrs)

Peter Zhao Bushings SC

(2 yrs) User

Subhas S. Sarkar

Virginia Transformer

Corp

Sheldon Kennedy WG C57.12.52

(2 yrs)

Tim Holdway WG C57.12.01

(2 yrs)

Chuck Johnson Dry Type SC

(>2 yrs) Producer

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. Anyone can join our 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. 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 minimum of three WG or SC chairmanships. Detail of the application requirements and approval process by the Administrative Subcommittee is outlined in our O&P manual.

The following table contains a count of the participants grouped by the three general categories.

Membership Status Oct-10 Apr-11 Oct-11 Mar-12 Oct-12 Mar-13

Interested Individual 843 997 1061 1132 1205 1277

Interested Individual - IEEE Life Member 6 2 4 6 7 8

Total Interested Individuals 845 999 1065 1138 1212 1285

Active Participant 227 230 218 232 231 173

Active Participant - IEEE Life Member 7 5 5 6 6 5 Total Active Participants 234 235 223 238 237 178

Committee Member 211 210 218 182 182 186

Committee Member - Emeritus Member 8 1 8 6 6 6

Committee Member - IEEE Life Member 26 31 31 29 30 31

Committee Member - Corresponding 1 1 1 0 0 0 Total Committee Members 246 243 258 217 218 223

TOTAL IN AMS DATABASE 1391 1478 1546 1593 1667 1686

It is the responsibility of each individual to keep his/her profile updated, (except for the category).

5.2 New Member Applications

Six new applications for Committee Membership have been received since our previous meeting in Milwaukee. They will be submitted for approval at the Munich meeting on March 17, 2013. Details of the membership applications and sponsors are listed in the following table.

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

James Bruce Fairris

Nashville Electric Service

Wally Binder WG’s C57.117 & C57.125 (2yrs)

Joe Watson WG C57.148

Cont Cab (3yrs)

Joe Watson Power Transformer

SC (4yrs) User

J. Arturo Del Rio

Trench Ltd Thang Hochanh

PD Bushings & IT TF (5yrs)

Bertrand Poulin Low Frequency Test WG (5yrs)


(5yrs) Producer

David E. Buckmaster

Shaw Power Philip Hopkinson

WG C57.157 DETC (3yrs)


(5yrs)

Joe Watson Power Transformer

SC (3.5yrs) User

Charles Sweetser

Omicron Electronics Corp USA

Jane Ann Verner WG C57.152 Field Test Guide (3yrs)

Stephen Shull WG C57.12.70

Terminals (2yrs)

Stephen Antosz PCS SC for

C57.149 FRA(8yrs) Producer

Hali Moleski S.D. Myers,

Inc.

H. Jin Sim IEC/IEEE Cross Reference (3yrs)

Richard Ladroga WG C57.104 DGA (3yrs)

Susan McNelly Insulating Fluid SC

(3yrs)

General Interest

David Brender

Copper Development Assoc, Inc.

David Buckmaster TF/WG Wind Xfmrs

(2yrs)

Derek Foster C57.12.91 Dry

Type Test Code

Jeewan Puri Audible Sound SC

(5yrs)

General Interest

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 copy of the Membership Application is attached as an Annex to this Secretary’s Report. 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. WG and SC Chairs are reminded also that signing an application sponsoring a new member signifies their sponsorship that the applicant has met the requirement of membership and active participation for at least one year in the WG or SC they Chair. 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.

5.3 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. Our 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.

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.

5.4 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). There are a number of Transformers Committee members who have lapsed and must renew their SA and/or PES affiliation. These memberships are renewed annually along with your IEEE Membership renewal, which typically occurs at the end of each year.

Reminder that WG Chairs must also be a member of the SC, IEEE, PES, and SA.

There are a number of Transformers Committee Members who are not PES or SA members. They will be given a reminder to renew these required memberships. If they do not comply then they will be dropped as Members. It is not fair to the other Members who adhere to this rule and pay the annual fees. Moreover, a person CANNOT participate in any ballot activity if they are not an SA member, and this is one of the basic responsibilities of an active member.

5.5 Committee Membership Maintenance & New Category – “Past Member”

The committee roster has been reviewed and there are many members that are not attending, not actively participating, and/or are not members of IEEE, PES, or SA, as required. See the list attached on the last 4 pages of this report. This has been an ongoing issue, i.e., what to do with previous members who for whatever reason are no longer active, or able to meet the requirements. It was felt that simply removing them was too disrespectful, so it has been suggested to create a new category of inactive “Past Member”, whereby a previously active Committee Member would be placed in this category for a period of 3 years, before being removed altogether. This temporary category is intended to maintain some honor and prestige of previous committee membership, rather than abruptly and unceremoniously ending it. Moreover, for those that desire, it gives a person the opportunity to be reinstated as a Committee Member if so desired. Past Members have no voting rights.

This category does not yet exist in the O&P Manual, and may not even get approved by RevCom, but in the meantime, we will try this out. Comments are welcome.

5.6 Consistent Guidelines for Membership Maintenance

Due to varying application of removal of members from individual SC’s & WG’s, the Secretary has reviewed the rules and reminded the SC Chairs for consistent application. Per the present Section 7.2 of the Working Group P&P Manual, following are some key points, that can also apply to Task Force and Subcommittee membership maintenance. I paraphrase and summarize here the key points:

- Membership is automatically granted to anyone requesting it at the first meeting of a new WG or TF.

- Thereafter, membership is granted after a prospective member attends two consecutive meetings as a guest AND actively participates in the work of the TF/WG/SC. A former member may be reinstated if the same criterion is met.

- Ongoing membership is maintained by consistent attendance at TF/WG/SC meetings, participation in internal TF/WG/SC surveys, or technical/editorial contribution to the TF/WG/SC’s document or work.

- Membership may be revoked if a member fails to attend two consecutive meetings or fails to respond to two consecutive surveys. The chair has discretion in not removing members who cannot attend but are still participating via survey responses and/or other written contributions.

- Another key point not mentioned is that each TF/WG/SC Chair (or Secretary) must keep regular logs of attendance and participation and update the roster after each meeting.

- The main benefit of membership is the privilege of voting on TF/WG/SC issues.

5.7 Essential Patent Claims

The Transformers Committee asks each participant at the time of meeting registration if they are aware of an essential patent claim, and if so to provide details. An Essential Patent Claim is any Patent Claim the use of which was necessary to create a compliant implementation of the IEEE Standard when there was no commercially and technically feasible non-infringing alternative. In other words, if an IEEE Standard REQUIRES the use of a product or process that is already patented, then this could be an essential patent claim. If they did, they would be instructed to have the patent holder’s legal team file a Letter of Assurance (LOA) with the IEEE-SA Standards Board Patent Committee. There is a link to this information on the transformerscommittee.org website under Patent Disclosure Requirements. For this Munich meeting there were 8 people who answered YES that they were aware of an essential patent claim. 6 of the 8 provided no details and were therefore not considered any further. The other 2 were reviewed and both referred to the same issue which is that PC57.139 DGA of LTC’s has had a Letter of Assurance (LOA) submitted in Jan 2012 by Reinhausen and IEEE Legal Department is reviewing it. Nothing further for the committee to do at this point.

5.8 Meeting Minutes

The minutes of the Milwaukee Transformers Committee Fall 2012 meeting were posted to the committee website in December 2012.

Subcommittee Chairs are requested to submit their SC Minutes from the Munich meeting by May 17, 2013.

The minutes should be submitted via e-mail to the Committee Secretary, Stephen Antosz at [[email protected]], with a copy to Susan McNelly [[email protected]] for posting on the Committee website.

The submittal file should be saved as a Word document formatted similar to this report and the assembled Minutes. The numbering for your report should match the numbering as indicated in the Main Committee General Session Meeting Agenda. Please indicate attendance count for each SC, WG, and TF meeting in your Minutes.

Respectfully,

Stephen Antosz Secretary IEEE PES Transformers Committee

March 27, 2013

Annex - Membership Application and Eligibility Requirements

Date: Applicant Name ______________________________________________________________________ Company ___________________________________________________________________________ Address ____________________________________________________________________________

____________________________________________________________________________ Email Address _______________________________________________________________________ Telephone ___________________________________Fax ____________________________________ IEEE Member Grade ______________________IEEE Member # ______________________________ Member IEEE-PES? Yes No Member IEEE-SA? Yes No List principal subcommittee and working group activity you have participated in:

1. _____________________________________________________________________________

2. _____________________________________________________________________________

3. _____________________________________________________________________________

Examples of typical statements you may use to explain your participation:

I participated in the review of the draft of _______ and provided comments. I participated in the survey of the draft of _______ and provided comments. I have committed to participate in development of the draft of _______ and the WG Chair concurs. I wrote (or worked with others to write) section ___ of the draft of _______.

This application is to be signed by the respective chairs as references. At least one reference must be a subcommittee chair, who will sponsor the applicant. 1. _______________________________ ____________ _________________________

Subcommittee/Working Group Duration Chair (Signature) 2. _______________________________ ____________ _________________________ Subcommittee/Working Group Duration Chair (Signature) 3. _______________________________ ____________ _________________________

Subcommittee/Working Group Duration Chair (Signature)

Membership Application Page 1 of 2

Applicant Name _____________________________________________________________________ Check the classification most appropriate for your position:

Producer or Manufacturer Interests - Those directly concerned with the production of products which are covered by documents prepared by the Transformers Committee.

Consumer or User Interests - Those who apply or use products which are covered by documents prepared by the Transformers Committee.

General Interest - Those who have interests other than those described above. Signed_________________________________________ Date__________________________ Approved by Administrative Subcommittee: ____________________________________________ ___________________________________ Chair Date

Membership Eligibility Requirements

Member in good standing of the IEEE Power & Energy Society and IEEE Standards Association.

a. A demonstrated interest and knowledge of the fields of Distribution, Power and/or Regulating transformers as expressed by working on standards, publishing papers, taking part in discussions of

technical papers and presentations thereof.

b. Technical competence in one or more particular branch(s) of engineering as specified in the scope of the Committee.

c. Contributing regularly as a member of Subcommittee(s) and Working Group(s) during a two-year apprenticeship period.

d. Willingness to devote time and effort to contribute to the advance of the art by:

∗ Regular attendance at meetings and participation at the Subcommittee and Working group level

∗ Reviewing technical papers for presentation and publication, as may be assigned by the Vice

Chair of the Committee.

∗ Committing to timely return of Committee ballots.

e. Continued participation in Committee functions such as serving as an officer, liaison representative, Subcommittee member, or Working Group member.

f. Actively participating in balloting of Technical Committee issues. SA membership is required for

balloting.

g. Regular attendance at meetings. When a member is absent for two consecutive scheduled regular meetings and fails to participate by correspondence, the member will be removed from committee

membership, subject to a review of extenuating circumstances by the Administrative Subcommittee. The

designation of a representative (non-Transformers will count as attendance for the member.

Membership Application Page 2 of 2

Last Name First Name Company

Member Type

CM=Committee

Member

3/15/2012

Nashville

10/25/2012

Milwaukee

3/18/2013

Munich

Preliminary

2012

IEEE

2012

PES

2012

SA

2013

IEEE

2013

PES

2013

SA

1 Ahuja Raj SPX Transformer Solutions, Inc.CM X X X

2 Allan Dennis MerlinDesign CM-IEEE Life No No No

3 Amos Richard Unifin International CM X X

4 Anderson Gregory GW Anderson & Associates, Inc.CM X X X

5 Antosz Stephen Stephen Antosz & Associates, IncCM X X X

6 Ares Ignacio Florida Power & Light CM No No No No

7 Arnold James Consultant CM-Emeritus

8 Arpino Carlo A-Star Electric Co. CM X No

9 Arteaga Javier ABB Inc. CM X

10 Asano Roberto ABB CM X X

11 Aubin Jacques CM-IEEE Life

12 Ayers Donald Ayers Transformer ConsultingCM X X X

13 Ballard Robert ABB Inc. CM X X X

14 Balma Peter Peter M Balma Engr Consulting PCCM X X

15 Barker Ron Dominion CM No No No No No No

16 Bartley William Bartley Consulting CM X X X

17 Beaster Barry Delta Star Inc. CM X X X

18 Beauchemin Claude TJH2b Analytical Services CM X X X

19 Betancourt Enrique Prolec GE CM X X X

20 Binder Wallace WBBinder Consultant CM-IEEE Life X X X

21 Blackburn Gene Gene Blackburn EngineeringCM X

22 Blaydon Daniel Baltimore Gas & Electric CM X X X

23 Boettger William Boettger Transformer Consulting LLCCM X X X

24 Boman Paul Hartford Steam Boiler CM X X

25 Borst John Retired CM No No No No No No

26 Brush Edwin BBF & Associates CM X X No

27 Buchanan Paul Moloney Electric Inc. CM X X

28 Bush Carl Pemco Corporation CM X X X

29 Callsen Thomas Weldy-Lamont Associates CM X X

30 Castellanos Juan Prolec GE CM X X X

31 Cherry Donald ABB Inc. CM X X X

32 Chiu Bill Southern California Edison CM X X X

33 Chu Donald Consolidated Edison Co. of NYCM X X

34 Claiborne C. Clair ABB Inc. CM X X X

35 Colopy Craig Cooper Power Systems CM X X X

36 Corkran Jerry Cooper Power Systems CM-IEEE Life X

37 Crotty John ABB Inc. CM X

38 Crouse John General Electric CM-IEEE Life X

39 Damico Frank TAMINI Transformers USA CM X X

40 Darovny William Siemens Canada CM X X No No

41 Darwin Alan Independent CM X

42 Davis Eric Burns & McDonnell CM X X X

43 Degeneff Robert Utility Systems Technologies, Inc.CM-IEEE Life X

44 Dix Larry Quality Switch, Inc. CM X X X

45 Dr Dohnal Dieter Maschinenfabrik ReinhausenCM X

46 Duckett Don Don A. Duckett, P.E. CM-IEEE Life X

47 Dudley EM Richard Trench Limited CM

48 Elliott Fred Bonneville Power AdministrationCM X X

49 Ellis Keith Electric Connection, Inc. CM X

50 Fallon Donald PSE&G CM

51 Faulkenberry Michael Georgia Power Co. CM X X

52 Feghali Pierre N. American Substation ServicesCM X X No No No No

53 Ferreira Marcos Reinhausen Mfg. CM No No No No

54 Fleeman Jeffrey American Electric Power CM No No No

55 Foldi Joseph Foldi & Associates, Inc. CM-IEEE Life X X

56 Forsyth Bruce Southwest Electric Co. CM X X

57 Fortin Marcel BPR Energy CM X

58 Foster Derek Magnetics Design, LLC CM X

59 Franchek Michael Weidmann Electrical TechnologyCM X X

60 Ganser Robert Transformer Consulting ServicesCM-IEEE Life

61 Garcia Eduardo Siemens CM X X X

62 Garcia Ramon Prolec GE CM

63 Gardner James NRECA International CM X X X

64 Gaytan Carlos Prolec GE CM X X No No

65 Ghafourian Ali ERMCO CM X X No No

66 Ghosh Saurabh Power Transformers SystemsCM X No

General Session Attendance Confirm Membership of IEEE/PES/SA

Transformer Committee Members, as of Mar 3, 2013


Member Type

CM=Committee

Member

3/15/2012

Nashville

10/25/2012

Milwaukee

3/18/2013

Munich

Preliminary

2012

IEEE

2012

PES

2012

SA

2013

IEEE

2013

PES

2013

SA

67 Girgis Ramsis ABB Inc. CM-IEEE Life X X X

68 Graham James Pike Energy Solutions CM X X X

69 Graham John Siemens TDL CM X X X

70 Graham Richard Delta Star Inc. CM X X

71 Griesacker Bill Doble Engineering Co. CM X

72 Gromlovits Mark Federal Pacific CM No No No No

73 Haas Michael Instrument Transformers, Inc.CM X

74 Hachichi Said Hydro-Quebec CM X No No

75 Haggerty EM Norman DuPont - Retired CM

76 Hall A C Power Transformers & ReactorsCM X No No No No No No

77 Hanique Ernst KEMA N.V. CM

78 Hanus EM Kenneth Oncor Electric Delivery CM

79 Hardin Michael H-J Enterprises, Inc. CM X No No

80 Harley John FirstPower Group LLC CM X

81 Harlow James Harlow Engineering AssociatesCM-IEEE Life X X

82 Harris David SPX Transformer Solutions, Inc.CM-IEEE Life X X

83 Hayes Roger ALSTOM Grid CM X X X

84 Heinzig Peter Weidmann Electrical Technology AGCM X

85 Henning William Retired CM X X X

86 Hochanh Thang Alstom CM X X X No No

87 Hoffman Gary Advanced Power TechnologiesCM X X X

88 Holdway Timothy Intermountain Electronics CM X X X

89 Holifield Thomas Howard Industries CM X X

90 Hopkinson Philip HVOLT Inc. CM-IEEE Life X X X

91 Hurley Catherine American Electric Power CM No No No No No No

92 Iman Mike MGM Tansformer Company CM X X No

93 James, Jr. Rowland Advanced Power TechnologiesCM X X X

94 Jhonsa Virendra Pepco Holdings Inc. CM No No

95 Johnson Charles ABB Inc. CM X

96 Jordan Stephen TVA CM X X

97 Juhlin Lars-Erik ABB Power Systems CM

98 Kalra C J Southern California Edison CM-IEEE Life No No

99 Kelly EM Joseph S.D. Myers Inc. CM-IEEE Life

100 Kennedy Gael Nebraska Public Power DistrictCM X X X

101 Kennedy Sheldon Niagara Transformer CM X X X

102 Kennedy William Retired CM-Emeritus No No No No No No

103 Khalin Vladimir Retired CM X X No No

104 King Gary Howard Industries CM X

105 Klaponski Brian Carte International Inc. CM X X X

106 Kline Alexander Retired CM-IEEE Life

107 Kraetge Alexander OMICRON CM X X X

108 Lackey John PowerNex Associates Inc. CM X X

109 Ladroga Richard Risk Management InternationalCM X X X

110 Lau Michael Weidmann Diagnostic SolutionsCM X X X

111 Lewis Timothy Acme Electric CM No No No No No No

112 Lindgren Stanley Serveron CM-IEEE Life

113 Lopez-FernandezXose Universidade de Vigo CM X X X No No No No

114 Lowdermilk Larry LAL International, LLC CM-IEEE Life X

115 Lundquist Thomas Lundquist Consulting Services, Inc.CM-IEEE Life X

116 Marek Richard DuPont CM X X X

117 Marlow Dennis DenMar TDS CM X X

118 Matthews Lee Howard Industries CM X X

119 McClure Phillip Weschler Instruments CM X X X

120 McNelly Susan Xcel Energy CM X X X

121 McQuin Nigel McQuin Electrical Power Consulting, Inc.CM

122 McShane Charles PatrickCargill Inc CM X X X No

123 McTaggart Ross Trench Limited CM X X X

124 Mehrotra Vinay SPX Transformer Solutions, Inc.CM X X X

125 Mehta Shirish SPX Transformer Solutions, Inc.CM-IEEE Life

126 Melanson Joseph J. Melanson, Inc. CM X No

127 Miller Kent T&R Electric Supply Co. CM-IEEE Life X X

128 Millward Paul ITEC CM X X X No No

129 Molden Arthur AMEESCO CM X X

130 Moore Harold Harold Moore & Associates CM-IEEE Life X

131 Morehart Walter Acme Electric CM-IEEE Life No

132 Mukerji Amitav ABB Inc. CM X X X No No




Member Type

CM=Committee

Member

3/15/2012

Nashville

10/25/2012

Milwaukee

3/18/2013

Munich

Preliminary

2012

IEEE

2012

PES

2012

SA

2013

IEEE

2013

PES

2013

SA

133 Mulkey Daniel Pacific Gas & Electric CM X X

134 Murphy Jerry Reedy Creek Energy ServicesCM X X X

135 Nguyen Van Nhi Hydro-Quebec CM X X No No

136 Nicholas Ray Schaffner MTC TransformersCM X

137 Nicholas Ron ABB Inc. CM X No No No No

138 Niemann Carl Niemann Consulting CM-IEEE Life X X

139 Olen Robert Cooper Power Systems CM X X

140 Oommen T.V. Retired CM-IEEE Life X No No No

141 Paiva Gerald Consultant CM No

142 Papp Klaus Trench Austria GmbH CM

143 Patel EM Bipin Consultant CM-Emeritus No No No No

144 Patterson Wesley ABB Inc. - Retired CM X X

145 Penny Brian American Transmission CompanyCM X X

146 Perco Dan Perco Transformer EngineeringCM X No

147 Perkins Mark ABB Inc. CM X X

148 Pezzin Justin IFD Corporation CM X X X

149 Pierce EM Linden Consultant CM-Emeritus

150 Pink Tony Dynamic Ratings, Inc. CM X X

151 Platts Donald SPX Transformer Solutions, Inc.CM X X X

152 Ploetner Christoph ABB Inc. CM X X No No

153 Pointner Klaus Trench Austria GmbH CM X X X

154 Poulin Bertrand ABB Inc. CM X X X

155 Powell Paulette 3P CM

156 Preininger Gustav Preininger CM

157 Prevost Thomas OMICRON electronics Corp USACM X X X

158 Progar John Jordan Transformer CM X No

159 Puri EM Jeewan Transformer Solutions, Inc. CM No No No No No No

160 Radbrandt Ulf ABB CM X X X

161 Rahangdale Ravi Pennsylvania Transformer CM-IEEE Life No No No No No No

162 Rasor Robert S.D. Myers Inc. CM X X No

163 Rave Martin ComEd CM X X

164 Raymond Charles Consultant CM

165 Raymond Timothy Power Delivery Consultants, Inc.CM

166 Reed Scott Clean Harbors CM No No

167 Reitter George George J. Reitter, P.E. CM No No No No

168 Riffon Pierre Hydro-Quebec CM X X

169 Robbins Kirk Exelon Nuclear CM

170 Roussell Marnie Entergy CM X X X

171 Sampat Mahesh EMS Consulting Inc. CM X

172 Sankar VallamkondaPower Transformer ServicesCM No No

173 Sankarakurup Dinesh Niagara Transformer CM X X

174 Sarkar Subhas Virginia Transformer Corp. CM X X

175 Sauer Daniel Cooper Power Systems CM X X X

176 Schappell Steven SPX Transformer Solutions, Inc.CM X

177 Schroeder Stephen ABB Inc. CM X

178 Schweiger Ewald Siemens AG CM X X

179 Sewell Jeremy Quality Switch, Inc. CM X X

180 Sharma Devki Entergy CM X X X No No

181 Sharp Michael Trench Limited CM X X X

182 Shekelton James H-J Enterprises, Inc. CM

183 Shertukde Hemchandra University of Hartford CM X X X No

184 Shull Stephen The Empire District Electric CompanyCM X X X

185 Sim H. Jin Jin Sim & Associates, Inc. CM X X

186 Singh Pritpal Consultant CM No No

187 Sizemore Thomas ABB Inc. CM X X X

188 Smith Edward H-J Enterprises, Inc. CM X

189 Snyder Steven ABB Inc. CM X X

190 Som Sanjib Siemens Industry Inc CM X X X

191 Spitzer Thomas City Transformer Service Co.CM X

192 Stahara Ronald Stahara Consulting CM-IEEE Life X X

193 Stensland Leonard Consultant CM-Emeritus No No No

194 Stiegemeier Craig ABB Inc. CM X X

195 Sullivan John Consultant CM-IEEE Life

196 Swinderman Craig Mitsubishi Electric Power ProductsCM X X

197 teNyenhuis Ed ABB Inc. CM X X X

198 Termini Giuseppe PECO Energy CM X X X




Member Type

CM=Committee

Member

3/15/2012

Nashville

10/25/2012

Milwaukee

3/18/2013

Munich

Preliminary

2012

IEEE

2012

PES

2012

SA

2013

IEEE

2013

PES

2013

SA

199 Thompson Jim T&R Service Company CM X

200 Thompson Robert RST Consulting, P.C. CM X X

201 Traut Alan Power Partners CM X X X

202 Trummer Edgar VACE CM X X No No No No No No

203 Tuli Subhash Electrical T&D Apparatus Consultant Inc.CM X X No No

204 Vaillancourt Georges EM Independent CM-Emeritus No No No No

205 Veitch EM Robert Veitch Transformer Engr ServicesCM-IEEE Life

206 Verdolin Roger Teshmont Consultants LP CM No No

207 Verner Jane Ann Pepco Holdings Inc CM X X X

208 Vir Dharam SPX Transformer Solutions, Inc.CM X X X No No

209 Wagenaar Loren WagenTrans Consulting CM-IEEE Life X X

210 Wallace David ABB Inc. CM X X

211 Wallach David Duke Energy CM X X X

212 Ward Barry Advantage T&D Consulting, LLCCM X

213 Watson Joe ZTZ Services CM X X

214 Wicks Roger DuPont CM X X X

215 Wilks Alan Consultant CM-IEEE Life X X

216 Wimmer William Dominion CM X X

217 Woodcock David WICOR Americas CM X No

218 Xu Shuzhen FM Global CM No No No No

219 Yang Baitun Pennsylvania Transformer CM X X X

220 Yu Jennifer Pacific Gas & Electric CM X X X No

221 Yule Kipp Bechtel Power Corp CM X X X

222 Zhao Peter Hydro One CM X X No

223 Ziomek Waldemar CG Power Systems Canada IncCM

Total Attendance = 135 135 108 13 40 34 9 39 26

Number of Members at the time = 218 224 223

Percent in Attendance = 62% 60% 48%

Quorum ?, Yes or No Yes Yes No

The 47 people that are highlighted in yellow will be moved from active Committee Member (CM)

to inactive Past Member (PM) or Emeritus Member (EM). 38 to PM. 9 to EM.

The EM's are: Richard Dudley, past SC Chair Lin Pierce, past SC Chair

Kent Haggerty, past Tutorial Coord Jeewan Puri, past SC Chair

Ken Hanus, past Committee Chair Georges Vaillancourt, past Webmaster

Joe Kelly, past WG Chair of Oil Guide Bob Veitch, past Committee Chair

Bipin Patel, Past Committee Chair



6 TREASURER’S REPORT – GREGORY ANDERSON

The finances of the Committee are in excellent condition. As of February 25, 2013 (end of this reporting period), the balance was $83,852.95. There were no assets (PC projectors, etc.) purchased during this reporting period. There was a substantial "intentional gain" during this reporting period in anticipation of expenses associated with the Munich Meeting. See following "balance sheet" for this reporting period and the previous period.

IEEE/PES TRANSFORMERS COMMITTEE

Treasurer's Report - Spring 2013

(for reporting period 09/02/2012 to 02/25/2013)

AAAAA Balance before Spring 2011 Meeting, as of 02/28/2011 $62,807.57

AAAA Balance before Fall 2011 Meeting , as of 09/27/2011 $60,022.97

AAA Balance before Spring 2012 Meeting , as of 02/22/2012 $47,864.80

AA Balance before Fall 2012 Meeting , as of 09/01/2012 $56,563.01

Misc Income, not meeting related

-- interest, approx 6 months $80.06

-- misc income (polo shirt sales, CD-ROM sales, book sales, etc.) $0.00

B Total Misc Income, not meeting related $80.06

Misc Expenses, not meeting related

-- 123Signup subscription fee, for 1 quarter(s) $879.00

-- awards $116.94

-- equipment purchases, major assets (projectors & cases, etc.) $0.00

-- technology (mobile app, WiFi equip, cables, etc) $524.98

-- conferences, remote meetings, etc. $159.00

-- other misc expenses (polo shirts, CD-ROMs, books, etc.) $0.00

C Total Misc Expenses, not meeting related $1,679.92

Spring 2012 Meeting

-- late income, meeting registrations (roll ing reserve paybacks) $0.00

-- misc late income (incentives, late sponsor contributions, etc.) $0.00

-- late meeting expenses $0.00

D Total Late Income/(expenses), Fall 2011 Meeting $0.00

-- reported prel im. gain/(loss), as of 02/22/2012, from previous Treasurer's Report $6,466.59

Actual Gain/(Loss), Spring 2012 Meeting $6,466.59

Fall 2012 Meeting

-- income, meeting registration $192,604.80

-- income (coffee break sponsors) $3,025.00

-- meeting expenses $166,740.00

E Subtotal Income, Fall 2012 Meeting, between 09/02/2012 and 02/25/2013 $28,889.80

-- meeting expenses, before 09/02/2012, from previous Treasurer's Report $0.00

Preliminary Total Gain/(Loss), Fall 2012 Meeting $28,889.80

Expenses, Future Meetings (deposits, etc)

-- meeting expenses, Spring 2013 Meeting $0.00

-- meeting expenses, other future meetings $0.00

F Total Expenses, future meetings, paid between 09/02/2012 and 02/25/2013 $0.00

G Net Income, between Fall 2012 & Spring 2013 meetings (B - C + D + E - F) $27,289.94

A Balance before Spring 2013 Meeting , as of 02/25/2013 (AA + G) $83,852.95

7 AWARDS REPORT –JAMES EDWARD SMITH

7.1 Committee Certificates of Appreciation Transformers Committee Certificates of Appreciation have been obtained, with approval of the PES Awards & Recognition Chair, for the following Award recipients: 7.1.1 General Service Awards Bernhard Kurth Host-Spring 2013 Meeting, Munich Germany Reinhausen Manufacturing Inc Host Company-Spring 2013 Meeting, Munich Germany Thomas G. Lundquist Past Chair, Power Transformer Subcommittee 7.1.2 Special Awards Thomas G. Lundquist Spring 2013 Distinguished Service Award James W. Harlow 2012 Promotion to IEEE FELLOW Peter M. Balma 2012 Promotion to IEEE FELLOW 7.1.3 Membership Certificates-For distribution at the Spring 2013 Munich Meeting Baitun Yang Approved at the Spring 2012 Nashville Meeting Thomas Sizemore Approved at the Spring 2012 Nashville Meeting Jeremy A. Sewell Approved at the Fall 2012 Milwaukee Meeting Robert T. Rasor Approved at the Fall 2012 Milwaukee Meeting David Archie Wallace Approved at the Fall 2012 Milwaukee Meeting Robert Asano Junior Approved at the Fall 2012 Milwaukee Meeting Brian R. Penny Approved at the Fall 2012 Milwaukee Meeting Subhas S. Sarkar Approved at the Fall 2012 Milwaukee Meeting These candidates will be nominated and voted on during the Munich ADCOM meeting. If accepted the following awards will be available for distribution at the Munich meeting. James Bruce Ferris Subject to approval at the Spring 2013Munich Meeting J. Arturo del Rio Subject to approval at the Spring 2013Munich Meeting David E. Buckmaster Subject to approval at the Spring 2013Munich Meeting Charles Sweetser Subject to approval at the Spring 2013Munich Meeting Hali Molewski Subject to approval at the Spring 2013Munich Meeting 7.1.4 Task Force Service Awards No Task Force Awards were reported for recognition at the Spring 2013 Munich Meeting

7.2 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. All Working Group Chairs chose to have their awards sent direct to their residence or place of business. No awards will available for distribution at the Spring 2013 Munich meeting the list below should be called forward for recognition only.

IEEE SA Award Recipients: C57.148 Standard for Control Cabinets for Power Transformers* Joe Watson WG Chair, C57.148

Steven Schappell WG VCo-Chair, C57.148 Peter Balma Outstanding Contributor C57.148 Saurabh Ghosh Outstanding Contributor C57.148 Gary Hoffman Outstanding Contributor C57.148 *Should have been recognized at Spring 2012 Transformers Committee meeting C57.150 IEEE Guide for Transportation of Transformers and Reactors Rated 10,000kVA or Higher Gregory W. Anderson WG Chair, C57.150 Ewald Schweiger WG Vice Chair, C57.150 Susan J. McNelly Technical Editor C57.150 Thomas G. Lundquist Outstanding Contributor C57.150 Kipp J. Yule Outstanding Contributor C57.150 C57.19.100 IEEE Guide for Application of Power Apparatus Bushings Tommy Spitzer WG Chair, C57.19.100 Jesse Patton WG Vice Chair, C57.19.100 Peter Balma Outstanding Contributor C57.19.100 Devki Sharma Outstanding Contributor C57.19.100 Shibao Zhang Outstanding Contributor C57.19.100 C57.12.52 IEEE Standard for Sealed Dry-Type Power Transformers, 500kVA and Higher, Three Phase, with High-Voltage 601 to 34500 Volts, Low Voltage 208Y/120 to 4160 Volts-General Requirements Sheldon P. Kennedy WG Chair, C57.12.52 Robert C. Ballard Outstanding Contributor C57.11.52 Gene Blackburn Outstanding Contributor C57.11.52 Charles W. Johnson Outstanding Contributor C57.11.52 Dhiru Patel Outstanding Contributor C57.11.52 Subhas Sarkar Outstanding Contributor C57.11.52 C57.149 IEEE Guide for the Application and Interpretation of Frequency Response Analysis for Oil-Immersed Transformers Charles Sweetser WG Chair, C57.149 Peter Balma WG Vice Chair, C57.149 Jeffrey Britton Outstanding Contributor C57.149 Alan Darwin Outstanding Contributor C57.149 Alexander Kraetge Outstanding Contributor C57.149 Mario Locarno Outstanding Contributor C57.149 Peter Werelius Outstanding Contributor C57.149 C57.12.10 Corrigenda for Standard Requirements for Liquid-Immersed Power Transformers Garry Hoffman WG Chair, C57.12.10 William Bartley WG Vice Chair, C57.12.10 Thomas G. Lundquist Technical Editor C57.12.10 Joshusa Herz Outstanding Contributor C57.12.10 Rowland James Outstanding Contributor C57.12.10 Timothy Holday Outstanding Contributor C57.12.91 Roger Wicks Outstanding Contributor C57.12.91

* * * * * REQUEST’S TO BE RECOGNIZED AT THE FALL 2013 ST LOUIS MEETING * * * * * C57.17 IEEE Standard for Arc Furnace Transformers Robert G. Ganser Sr. WG Chair, C57.17 Robert G. Ganser Jr. Secretary, C57.17 Peter Balma Outstanding Contributor C57.17 William Bartley Outstanding Contributor C57.17 Dominico Corsi Outstanding Contributor C57.17 Frank Damico Outstanding Contributor C57.17 Thomas Lundquist Outstanding Contributor C57.17 7.3 IEEE Standards Association (SA) Awards and Recognition The IEEE SA sponsors additional awards besides the WG Chair Awards reviewed above. Discussion of these awards can be found on the IEEE SA Awards web pages (http://standards.ieee.org/sa/aw/). Note particularly the IEEE SA Standards Medallion. Excerpting from the website: “The Standards Medallion is awarded for major contributions to the development of standards. Examples of such contributions may include leadership in standardization of new technologies, assuring achievement of standards development goals, identifying opportunities to better serve the needs of standards users or other such contributions viewed as deserving of this awardV” Please review, and if you have suggestions for nominations see our Committee Awards Chair. 2012 Standards Medallion Award for Presentation at the Spring 2013 Munich Meeting On behalf of the IEEE we are very pleased to present Mr. Philip J. Hopkinson, PE with his IEEE Standards Medallion award for his many accomplishments and years of dedicated service to the Transformers Committee, IEEE, PES and our industry as a whole. 7.4 PES Transformers Committee Distinguished Service Award We will continue to present our PES Technical Committee Distinguished Service Award each year to one of our members who is recognized by his peers as having contributed significantly and consistently to Committee Standards activities. Excerpting from the PES Awards website: “Each Technical Committee is encouraged to make one award for outstanding service. This personal recognition acknowledges the efforts of those individuals whose sustained performance, over many years, has contributed to the advancement of the committee technology.” Please see the Awards Chair if you have suggestions for future recipients. We are seeking nominations for this award. Spring 2013 Distinguished Service Award-Munich, Germany For his many years of dedicated service to the IEEE Transformers Committee we are very please to present Mr. Thomas G. Lundquist with the Spring 2013 Distinguished Service Award. 7.5 PES Working Group Recognition Awards In addition to the Technical Committee distinguished service Awards, PES sponsors Working Group Recognition awards. The awards are related to “outstanding and timely” publications of technical reports, or of standards and guides. Excerpting from the PES website (http://www.ieee.org/portal/site/pes/) Awards pages: “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. 7.6 Transformers Committee Meritorious Service Awards There is also a process of additional recognition for Meritorious Service and Outstanding Contributions to the Committee. Suggested qualifications have been developed from a review of similar awards presented by other IEEE Technical Committees or Societies. General examples for qualification for the awards include the following: • To recognize continuing exemplary service in notable technical contributions to multiple

Committee projects/documents over a sustained period of time • To recognize an achievement of major value and significance to the Committee. The

achievement can be a specific, concisely characterized accomplishment, as opposed to a collection of different efforts.

• As with the IEEE Education Society Meritorious Service Award – “to recognize pioneering contributions to the administrative efforts of the Society over a period of years, as evidenced by dedication, effort, and contributions.”

If you have any additional thoughts on qualifications for Meritorious Service Awards, and if you have potential nominees to suggest, please contact me. Award nominees will be reviewed by the Awards Chair and the SC Officers. 7.7 Member Certificates The Framed Transformer Committee Membership Certificates were distributed beginning with our Fall 2012 Milwaukee meeting. Those that were not handed out in Milwaukee will be available for pick up at our Munich, Germany and/or St Louis, Missouri meeting. All Transformers Committee members should make sure to pick-up your certificate sometime during the Munich meeting. If you know of any member that is not present in Munich and you have the ability to deliver his/her certificate, please consider taking it to them. This program is one small way of recognizing your support for the Committee. The Certificates represent the appreciation of the Committee, and of your Committee Officers, for your service to the Committee, to IEEE, and to our Industry. We hope you will display your Membership Certificate proudly at your place of business, and encourage others to join us in our work. See section 6.1.1.2 of this report for the new membership certificates approved since last meeting. 7.8 Nominations for IEEE, PES, and Technical Council Awards Regarding IEEE Fellow Nominations, we need to think about nominations for 2013. Borrowing from the IEEE Awards web page . . . (http://www.ieee.org/web/membership/grade_elevation/grade_elevation.html): “The grade of Fellow recognizes unusual distinction in the profession and shall be conferred only by invitation of the Board of Directors upon a person of outstanding and extraordinary qualifications and experience in IEEE-designated fields, and who has made important individual contributions to one or more of these fields.” Nominations, including references by at least five present IEEE Fellows and optional additional endorsements, must be completed and submitted by March 1 of each year for the following year’s Class of Fellows.

8 ADMINISTRATIVE SC MINUTES – BILL CHIU, CHAIR; STEPHEN ANTOSZ,

SECRETARY

Introductions

The attendees were asked to introduce themselves. The chair asked each attendee to state

his/her affiliation. If the attendee is a consultant, the attendee must state if he is representing

a company other than his own consulting interest. Introductions were made by members

and guests.

Attendance

Members present: Members absent:

Gregory Anderson Peter Zhao

Stephen Antosz Charles Johnson

William Bartley Edward Smith

Ed teNyenhuis Carl Niemann

Bill Chiu

Ross McTaggart Guests present:

Susan McNelly Erin Spiewak

Donald Platts Casey Ballard for Chuck Johnson

Michael Sharp J.D. Brafa for Peter Zhao

Stephen Shull Tom Prevost

Bruce Forsyth

Michael Franchek

Joe Watson

8.1 Approval of Previous Meeting Minutes

The Chair asked for comments from the Milwaukee Administrative Subcommittee meeting

minutes. Hearing no comments or requests to change the draft minutes, the Chair asked for

a motion to approve. Vote Approved.

8.2 Approval of Agenda

The Chair reviewed the draft agenda with the attendees. There were no comments and the

Chair declared the agenda approved.

Meeting Call to Order 10:00am

1. Introduction of Members and Guests (:05) All

2. Approval of Fall 2012 Minutes – Milwaukee (:03) B. Chiu

3. Additions to and/or Approval of the Agenda (:02) B. Chiu

4. Chair’s Report (:05) B. Chiu

5. Vice Chair’s Report (:05) D. Platts

6. Secretary’s Report (:10) S. Antosz

7. Treasurer’s Report (:05) G. Anderson

8. Awards Report (:10) E. Smith/B. Chiu

9. Meeting Planning (:10) G. Anderson

9.1. Milwaukee Meeting Arrangements & Host Update 9.2. Future Meetings

10. Standards Report (:20) B. Bartley

10.1. Strategy for Upcoming Revisions B. Bartley/D. Platts

11. IEEE Staff Update (:05) E. Spiewak

BREAK (:10)

12. Old Business 12.1. WG Data – Confidentiality, Storage, Access, & Use (:10) S. McNelly/E. Spiewak

12.2. GMD/GIC Position Paper (:05) B. Chiu

12.3. Committee O&P Revision, & New Member Category (:05) B. Chiu/S. Antosz

13. New Business 13.1. Meeting Improvement Initiative (:05) D. Platts/B. Bartley

14. Subcommittee Reports - Roundtable 14.1. Bushings (:05) J.D. Brafa for P. Zhao

14.2. Dielectric Test (:05) M. Franchek

14.3. Distribution Transformers (:05) S. Shull

14.4. Dry Type Transformers (:05) C. Ballard for C. Johnson

14.5. HVDC (:05) M. Sharp

14.6. Instrument Transformers (:05) R. McTaggart

14.7. Insulating Fluids (:05) S. McNelly

14.8. Insulation Life (:05) B. Forsyth

14.9. Performance Characteristics (:05) E. teNyenhuis

14.10. Power Transformers (:05) J. Watson

14.11. Underground Transformers & Network Protector (:05) C. Niemann

15. Adjourn

8.3 Chair’s Report – Bill Chiu

See section 3.2.

8.4 Vice-Chair’s Report – Don Platts See section 4.0.

8.5 Secretary’s Report – Stephen Antosz See section 5.0.

8.6 Treasurer’s Report – Greg Anderson See section 6.0.

8.7 Recognition and Awards Report – James Edward Smith

See section 7.0.

8.8 Meeting Planning Report – Greg Anderson

No written report.

8.8.1 Munich Meeting

No written report.

8.8.2 Future Meetings

No written report.

8.9 Standards Report – Bill Bartley

The report was presented and discussed. It is extensive. See section 9.2 and

website for report.

8.10 IEEE Staff Update – Erin Spiewak

8.10.1 Policy Changes since last meeting to the IEEE-SASB Operations Manual

a. Ballot timeframe terms are now defined as: Sponsor Ballot 30 days and Recirculation

10 days. Previously these were not mandatory, just the typical/suggested time

frame.

b. Technical appeals – there are no technical appeals and the Operations Manual has

been updated to reflect this. This is because technical issues are handled/discussed

at the working group level or through Sponsor Ballot.

c. JSA Template – Joint Sponsorship Agreement. If the committee wishes to work

jointly with another IEEE Committee they will be required to fill out a JSA when

submitting a PAR. The JSA will cover the dissolution of the co-sponsorship,

ownership after completion, responsibility of maintenance, P&P’s etc.

8.10.2 Public Review

Recent talks at the Standards Board meeting series that there could be a public review

period, not just Sponsor Ballot. This is only at the discussion stage and no final decision

one way or the other. More information to come as it is received.

8.11 Old Business

8.11.1 WG Data – Confidentiality, Storage, Access, and Use

An important issue came up that merits further explorations regarding the lack of a

Transformers Committee policy that deals with data and other information that is submitted

to our committee for use in developing standards. In general, the issues fall in two

categories:

1) the secure storage and access to the data, and

2) the commitment by all those who have access to the data to abide by the intended use

of the committee as understood by the contributors.

In regards to the first issue, the AdminSC has reached a preliminary solution and Sue

McNelly has the lead on crafting some procedural protocols to document how we will

manage these data moving forward. We anticipate having that done before our next

meeting in St. Louis in October.

In regards to the second issue, the AdminSC has approved the formation of a taskforce, to

be led by Tom Prevost, to evaluate the straw man proposal indicated below, and to consider

other related guideline as necessary and make a recommendation prior to the St. Louis

meeting with the intent of the proposal being officially acted upon at the St. Louis meeting.

The following people volunteered or were appointed to the Task Force:

Tom Prevost, Chair Sue McNelly Mike Franchek Bill Bartley Erin Spiewak Joe Watson Peter Balma

The following points were shared with the AdminSC group as a part of our discussion. (The source of this information is from Dave Hanson's email to Rick Ladroga dated 1/25/2013). Recommendations for a Data Contribution policy: 1. The intended use of contributed data should be explicitly stated by the Working Group. 2. The limited use of a contributor’s data should be explicitly stated by the contributor. 3. The Working Group should limit use of the data to comply with these statements. 4. A desire to change the use of the data should be explicitly presented to the contributors 5. Contributors should explicitly agree to this changed use. 6. The Working Group should limit use of the data to comply with these statements 7. Data contributed by a commercial entity should not be shared with commercial

competitors or other parties who may derive commercial benefit from intended or even unintended uses of the data.

8. Data contributed by commercial entities should not be processed and/or presented for comparison of the data. Such comparisons may have commercial consequences.

9. All publications using work derivative of the contributed data should be within the scope of the intended use and should declare the Working Group as the author and credit individuals only through acknowledgments in the paper.

10. All individuals who handle contributed data should sign an agreement to abide by the policy and further sign a non-disclosure agreement. Data contributors may want to be party to the agreements.

8.11.2 GMD/GIC Position Paper –Bill Chiu

Status update as of March 13, 2013 on the latest developments on the draft of the position paper we have been working on and also on the appointment of additional leadership roles to our Taskforce.

First, I am pleased to announce that Randy Horton has agreed to support our effort as the Vice Chair of this taskforce, Additionally, Steve Antosz also agreed to serve as our taskforce Secretary. Please join me in welcoming Randy and Steve to their new role. Over the past month and a half, we have made significant progress thanks to many of you spending long hours from your busy schedule to help review the draft and made some wonderful contributions. Central to this latest revision is the additional analysis on transformer hot spot calculations based on a given GIC profile derived from the March 1989 event. I have incorporated the transformer section based on Ramsis' and Jim's rewrite, coupled with Randy's and Luis' comments and suggestions as the starting base. Additionally, introduction and conclusion section has also gone through several rounds of the edits with contributions from Randy, Bill Bartley, Don Platts. In consolidating this latest draft, some adjustments were necessary to streamline the flow of the contents and also in several cases remove redundant information. Due to the many layers of track changes, it became very difficult to manage, so track changes were removed in consolidating this latest draft with a clean start. I am pleased to present the third draft of this position paper (start with draft 0, draft 1, and now draft 2). Special thanks also goes to Bill Bartley and Don Platts for assisting with some details editing throughout. It's still a work in progress, but it's coming together nicely. I have also been connecting with Mel Olken, P&E Editor, to discuss the next step in publishing this in the P&E. I plan on forwarding this latest draft to him as a preview so he could provide some guidance on how best to adjust/fit the magazine format. Based on the recent conference call I had with Mel Olken and Jeff Nelson (PES Tech Council Chair), it is likely that we may have to produce a condensed version (with reference to the full length paper) for publication. More to come on that later. With the Transformers Committee meeting in this coming week in Munich, Germany, many of us will travelling in the next couple of weeks, thus logistically challenging to conduct a webex meeting soon. Our next task would be to review this latest draft with the goal of finalizing it in the first part of April as the publication submittal deadline is essentially upon us.

8.11.3 Committee O&P, WG P&P Manual Update – Bill Chiu

Peter Balma continues to work on updating the O&P and P&P Manuals. A more detailed

summary report will be available at our next meeting in St Louis in October.

8.12 New Business

8.12.1 Meeting Improvement Initiative – Activity Leader Training Guide

A Task Force was formed to make recommendations for activity leader training and

development of an internal guide for best practices in managing the work and flow of Task

Forces and Working Groups. The following people volunteered or were appointed:

Gary Hoffman – Chair Bruce Forsyth – Member

Don Platts - Vice Chair John D. (J.D.) Brafa – Member

Bill Bartley - Member

8.13 Subcommittee Reports

Subcommittee Hot Topic

Bushings – J.D. Brafa for P. Zhao C57.19.100 Bushing Application Guide has been

published.

IEC/IEEE 60570.19.03 DC Bushings PAR expires at

end of 2013. A ballot must be submitted or a PAR

extension requested.

S. Shull asked about an old business item for

development of a standard on distribution (<15kV)

bushings. An Update will have to be provided later.

Dielectric Test – M. Franchek Got updates from Loren. Two new WG’s:

C57.161 DFR and Acoustic PD Detection

Distribution Transformers – S. Shull DOE efforts stopped.

Gassing of wind-farm transformers and possible PD

causes

Dry Type Transformers – C. Ballard

for C. Johnson

C57.12.01 Draft is out

C57.12.91 will open back up

C57.12.55 Enclosures. Overlap in IEEE and IEC will

be explored.

HVDC – M. Sharp Converter standard is only one. Should it be dual

logo with IEC?

Instrument Transformers – R.

McTaggart

C57.13 reviewing comments; struggling with PD

issues. Substation PT’s may need to develop a

stand-alone guide.

Insulating Fluids – S. McNelly No hot topics

Insulation Life – B. Forsyth Four meetings and have concerns with keeping the

work moving expeditiously.

Performance Characteristics – E.

teNyenhuis

FRA Guide is done and published. Congrats to

Charles Sweetser.

Power Transformers – J. Watson C57.131 LTC was balloted and agreed to adopt parts

of IEC so consider dual logo.

Underground Transformers &

Network Protector – C. Niemann

Not present. No report

Standards SC – Bill Bartley Insulating Fluid terminology TF is still working on

consistent use of liquid/fluid/oil

9 STANDARDS SC MINUTES & REPORT – WILLIAM BARTLEY

9.1 STANDARDS SUBCOMMITTEE MINUTES

1. Opening Remarks

The Chair, William Bartley opened the meeting and summarized the recent activities of the Transformer Standards activity for the six-month period October 1, 2012 to March 6, 2013. In the last five months, 6 new Standards and 1 Revision were approved by Standards Board /REVCOM. In this same period, Standards Board /NESCOM approved 1 PAR for a new standard; 2 PARs for Corrigenda; 1 PAR modification, and 3 PAR extensions. This total includes a Standard and 3 PARs that were approved just a few days before the spring committee meeting. The Transformer Committee is responsible for almost 100 standards, plus over 55 PARs, projects for new standards and revisions. For the full Standards Report see the TC website via the following link:

http://www.transformerscommittee.org/meetings/S2013-Munich/Minutes/S13-StandardsReport.pdf

The Chair reminded everyone that there are all the due dates for submittal to NESCOM and REVCOM along with past tutorials, presentations and instructions on the process, links to MyBallot with instructions, references and templates for preparing standards that can be found by a link from the Standards subcommittee page of the Transformers Committee website or directly at:

http://www.transformerscommittee.org/subcommittees/standardsc/StdsDevelopment.htm

The Chair reminded everyone that the revision cycle has changed and an overview of the 10 year maintenance cycle for revising standards can be found at:

http://standards.ieee.org/develop/revisestds.html

2. Meeting Attendance

The Standards Subcommittee met on Wednesday, March 20, 2013, at 4:30 PM. A role call showed 18 members in attendance not achieving quorum at the meeting. Overall there were 66 attendees, 18 members, 48 guests, including 13 that requested membership upon tabulation of the circulated rosters with 7 meeting the established criteria.

3. Approval of previous meeting minutes

The Chair asked if there were any comments or corrections to the previous meeting minutes and without quorum no action could be taken. There were no comments to the meeting minutes of the Fall 2012 meeting in Milwaukee, Wisconsin; and the minutes were approved.

4. Working group reports.

•••• Continuous Revision of C57.12.00 – Steve Snyder reported the following:

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 goal is to issue new Standards every 2 to 3 years.

Standard C57.12.00 was published September 2010. A new PAR was requested in April 2011 and approved June 16, 2011 to cover the ongoing work for the continuous revisions. This PAR is good through December 31, 2015.

The Performance Characteristics Task Force working on stabilizing windings has finished their work, which will result in a small revision to the document. There are three (3) other PCS issues underway at present, and those topics should be fully addressed by the middle of 2013. There were a few negative ballot comments from the prior ballot pertaining to Dielectric Tests, Insulation Life, and Insulating Fluids. I am aware of progress occurring on the dielectric test tables, but I am unaware of what’s occurred in the other Subcommittees. I think those items should be completed or reviewed before we move forward with a new revision.

At the Milwaukee meeting, I was informed of a possible equation error in standard C57.12.00. This issue will be investigated by me and a few ballot resolution “volunteers” to determine appropriate action, if any. The Dielectric Tests Subcommittee is discussing changes to Table 5, which they’ll forward to me when complete.

I still expect by mid-2013 to start soliciting input from all Subcommittees to determine if they have changes ready for inclusion in the next revision cycle.

Respectfully submitted, by Steven L. Snyder, WG Chair, on March 20, 2013

•••• Continuous Revision of C57.12.90-2010 – S. Antosz reported the status of as:

This is essentially a working group of one person. There was no meeting held. The purpose of the WG is to keep track of the work being done in various TF / WG / SC for inclusion in the continuous revision of C57.12.90 in a consistent manner.

Summary

The new PAR was approved on June 15, 2011. It is valid until Dec 31, 2015. There has not been much activity since March 2013.

Future Revisions

Changes already approved for the next revision:

• New subclause 10.2.5 Connection of neutral terminal during switching impulse tests by Pierre Riffon’s WG Revision to Impulse Test in Dielectric Test Subcommittee. Submitted on 4/27/09.

• Revisions to Clause 12 Short-circuit tests and new Annex on Connections diagrams for testing three-phase transformer using alternate single-phase source by Marcel Fortin’s Task Force in the Performance Characteristics Subcommittee. Submitted in Fall 2009.

• Revision to subclause 10.3.2.4 Tap connections during lightning impulse test by Pierre Riffon’s WG Revision to Impulse Test in Dielectric Test Subcommittee. Submitted on 10/28/10.

• Revisions to subclauses 10.2.1,10.3 and 10.3.3 which increases the number of full wave impulse waves applied from one to three. This is the same as IEC

• Revisions to Clauses 6 & 7 Polarity & Phase-relation and Ratio tests from Mark Perkins’ PCS WG for Revision of C57.12.90. Final survey circulated in Sept 2011.

• Revisions to Subclause 11.1 which reversed the order of appearance of the two methods of simulated loading for temperature test.

• Revisions to Subclause 11.2.2 which revised items “a” through “f” of the hot resistance measurement procedure for temperature test.

Pending work • Revision to Subclause 11.1.2.2 Loading back method for Temperature-rise tests

by Paulette Payne Powell’s WG in the Insulation Life Subcommittee.

• Revision to Clause 13 Audible Sound by Ramsis Girgis’ TF in the Performance Characteristics Subcommittee.

• Other possible revisions to subclauses 10.2 to 10.4 from Pierre Riffon’s WG for revision of impulse tests.

• Other possible revisions to subclauses 10.5 to 10.10 from Bertrand Poulin’s WG for revision of low frequency tests. Maybe some change due to Class II PD testing on 69 kV, xfmrs >15 MVA.

• Other possible revisions to subclause 9.5 Zero Phase Sequence Impedance from Mark Perkins PCS WG for Revision of C57.12.90.

Respectfully submitted by Stephen Antosz, WG Chair, on March 2013

•••• WG on Revision of IEEE PC57.152 (old 62) – Jane Verner

The Working Group met on March 19, 2013 and began with introductions of all. A total of 54 people with 28 guests were in attendance, including 26 members and 8 requesting new membership. We had a quorum.

The Milwaukee Fall 2012 meeting minutes were approved with motions by John Herron and Dan Sauer and approved by the WG.

Since the Milwaukee meeting Drafts 7.0 and 7.1 were recirculated via My Ballot. REV COM approved Draft 7.1 on March 6, 2013. Final editorial review will take place to add voters name and fix any typos before the document is published sometime this summer.

A special thank you to the volunteers on the ballot resolution • Kipp Yule • Loren Wagenaar • Charles Sweetser • Mario Locarno • Wally Binder • Peter Balma • Tom Prevost • Tom Lundquist • Gary Hoffman

Since this document is for continual revision, a listing of items mention on ballot resolution and those impacted by other standards were discussed for future revision of C57.152

1. Field Sound Testing Methodology (no existing standards for field testing) The majority favored some guide on sound testing in the field but it was agreed the proper location for this information should be further reviewed.

2. Field inspection information – PAR does not mention any visual inspection but included in the Guide. The PAR could be revised beyond diagnostic tests to include inspections going forward.

3. Alignment with other transformer standards (for example C57.12.90 on PD limits) PD limits on just transformers will be difficult to determine in the field due to influence from other factors in the substation and environment. PD limits are in C57.113.

4. Automation equipment calibration (example fiber optics, temperature monitors or DGA devices are not mentioned in this guide - expand auxiliary equipment sections). It was agreed that this is a reasonable topic to consider.

5. Moisture in insulating fluids will need revision as other documents are revised. Task forces for moisture in insulating systems and moisture in insulating fluids are holding meetings on these topics.

6. Resistance Measurement formula information could be added to future revisions.

7. Dynamic Resistance Measurement for On Load Tap Changers and regulators is a new technology that could be considered.

8. More information on regulators was suggested especially when not bypassing regulators the testing should be done in neutral position.

A tutorial on PC57.152 versus IEEE 62 will be held on Thursday March 21 at 9:30 AM.

The meeting was adjourned at 8:35 AM.

Respectively submitted by Jane Verner – WG Chair

•••• TASK FORCE on Recommendations to the IEEE Transformer Committee (TC) on Recommended Changes, Deletions, and Insertions Related to Normalizing the References of Insulating Liquids Throughout the IEEE TC Standard Series – P. McShane–TF Chair

Patrick McShane called the meeting to order at 1:45pm on March 19, 2013. To establish a quorum, the PC generated list was used to call out the members names. From the response, it was determined that a quorum was established. Steve asked that everyone fill out the attendance sheet as it was circulated.

Patrick reviewed with the group the organization and officers of the TF. Ten of the approximately 90 standards have been reviewed and reports submitted. The most recent reports will be added to Annex B of the White Paper Recommendations for Revisions. Bill Henning reported that he had completed the term review of C57.131 and indicated each item for possible revision. However, he was having issues determining what to recommend what term to propose based on the information that he had in hand. Patrick indicated that the information had not gotten posted as soon as he had hoped and he believed that the currently posted white paper would help answer his questions. Sue McNelly committed that in her review of this paper, she did see how this information would help Bill with his concern. Patrick commented that some places where this term had been used are very appropriate. The suggestion was made that we needed a “help” document to define these points. This led to a discussion concerning the need to replace every oil reference.

Patrick suggested that, while the white paper draft gives essential information, we might need another appendix to address this. Jerry Reeves made a motion that we assign a

sub group to develop a glossary of terms so that these issues could be clarified for those reviewing the standards. It was seconded by Bill Henning. To start the motion discussion, Patrick re-covered the major points of the white paper on this issue. During the discussion, Jerry Murphy said that he believed that this discussion of terms had already been done. He proceeded to show us a excel spreadsheet that he had submitted to Patrick. However, in the discussion by the group it was found that there was still a concern that consistency would need to be established and this glossary would help in providing this guidance. A vote was taken and the motion passed with no negatives. The next step was to ask for volunteers for this group. Since Jerry Reeves had made the motion, he was assigned as chair. Patrick McShane, Clair Claiborne, Jim Rasco and Dave Hanson volunteered to participate in the group. Jerry Reeves said that the Glossary Group would provide the deliverable to Patrick McShane by July 1st. Patrick would then add this as Appendix D in the white paper and have it reposted to the web site so that everyone could continue their review process. Ben Henning commented that he would provide his revised spreadsheet to Steve Shull by April 10th.

Steve Shull committed to developing a composite spreadsheet of Jerry Murphy, Ben Henning, and others and providing it to the web master to be posted. With this the meet was called to adjournment.

Respectively submitted by Steve Shull – TF Secretary

5. Old Business

•••• None

6. New Business

• The Chair reported that Jin Sim has retired from SPX and announced he would not be as regularly involved with the Transformers Committee and the subcommittee gave a round of applause for Jin’s service to the subcommittee. The Chair appointed Vinay Mehrotra, who accepted before those in attendance, to take over Jin’s former position on the subcommittee as the chair of the TF for Continuous Review of IEEE-IEC Cross Reference.

7. Adjournment

The meeting was adjourned by Chair without objection; the meeting adjourned around 5:10pm.

Respectfully submitted by Jerry R. Murphy, Standards SC Secretary

9.2 STANDARDS REPORT

The Standards Report is a separate document, and is usually posted on the

transformerscommittee.org website. An extra copy is attached here at the end of

these minutes. It is titled “S13 Standards Report”.

10 MEETINGS PLANNING SC MINUTES & REPORT – GREGORY ANDERSON

10.1 MEETINGS SUBCOMMITTEE MINUTES

No written report.

10.2 MEETINGS REPORT

No written report.

11 MINUTES OF TECHNICAL SUBCOMMITTEES

11.1 PERFORMANCE CHARACTERISTICS SC – ED TENYENHUIS

Performance Characteristics Subcommittee – Chair: Ed teNyenhuis; Vice-Chair: Craig Stiegemeier; Secretary: Sanjib Som

Introduction / Attendance The Performance Characteristics Subcommittee (PCS) met on Wednesday, March 20, 2013 at 3pm with 110 people attending. Of these, 60 were members and were 50 guests. Prior to this meeting, the total membership of PCS was 105 members; therefore, quorum was achieved with 60 of the membership in attendance. There were 7 guests requesting membership. Chairman's Remarks A review of the PCS standard expirations and PAR expirations was reviewed; five standards due to expire in 2018 needs attention. These are (C57.21, C57.105, C57.109, C57.110 and C57.136). The Thursday morning technical presentations were mentioned for information. Administrative Subcommittee Notes Upcoming IEEE – PES Meetings

- PES General Meeting: July 2013, Vancouver, BC, Canada. - Next Transformer Committee meetings:

Fall 2013, St. Louis, Missouri; hosted by HJ Enterprises Spring 2014, Savannah, Georgia; hosted by EFACEC

Approval of Last Meeting Minutes The chairman presented the minutes of the last meeting in Milwaukee, WI – October 24, 2012. This was seconded by Dan Sauer. There were no comments from the attendees. The minutes were approved as written. Unfinished (Old) Business No old business. New Business No new business. Meeting was adjourned at 4.15 pm. Working Group (WG) and Task Force (TF) Reports: 11.1.1 PC57.120 LOSS EVALUATION GUIDE FOR DISTRIBUTION AND POWER

TRANSFORMERS AND REACTORS Meeting Minutes (Un-approved) of Fall 2013 Munich, Germany on Tuesday March 19, 2013 Al Traut, Chair, Don Duckett, Vice-Chair, Dave Harris - Secretary

PAR Status: PAR Approved; PAR expiration Date: 12/31/2014; Current Draft Being Worked On: D13 • Attendance

o 45 Total o 8 of 21 Members o 31 Guests o 6 Guests requesting membership

• The meeting was called to order at 11:00 am on Tuesday, March 19, 2013. • Attendance of membership was taken and a quorum was not established. Chair Report • Al Traut outlined the PAR status and expiration and noted that we need to go to ballot no

later than immediately after the Spring 2014 meeting. Old Business Updates to Draft 13

• Suggestion from last meeting was to move Annex C in to section 4.2 – Al completed this move

• No changes in definitions • Comment about LM and L acronym at last meeting - Al modified each to LM for

consistency. • Two stages of cooling in TOC – section 4.1 updated

o Added B1, AL1 and B2, AL2 o Jerry (EFACEC) asked question about bank 1, bank 2. Al said might become

clear in later section. • Added Loss Multiplier to equation in 4.1.1 – into determination of A & B factors

o As long as the LM is taken out of the other equations (Wally) • Al - trying very hard to keep dollar units out of the document

o Steve Shull suggested that the word “currency” could be used in place of dollar sign to get around IEEE requirement.

• 4.2 – includes information that was in Annex C, might be some redundant statements as we go through this

o Include all costs of acquiring the transformer (taxes, engineering work, etc.) o Auxiliary Losses – Last sentence - Stage 1 running during stage 2 o Shunt and Series Reactors came out of Annex C

• 4.3 – Cost Parameters o Don brought up the point about system capacity costs at last meeting; suggestion

to break costs into three separate costs. Al needs help breaking the non-GC costs into Transmission and Distribution “buckets”.

� Brian K. and Al T. suggested that the loading factor would be different depending on where the transformer is in the system, but the model would be similar

o Al will update the specific time references used in this section o Wes Knuth – Resource management people were pretty secretive about how

much they were spending. Stated he would go back and try to obtain more information.

o Wally – Identified resource (where?) cost of various technologies – if you don’t have generation, there are numbers available for a good estimate. Energy Interface Agency? (Al) Wally will check to see what he sent to Al previously. Wally provided the link below. http://en.openei.org/apps/TCDB which is a

Transparent Cost Database which shows the overnight capital costs of various generation technology

o Tony Reiss provided a copy of report that he believes was the reference mentioned by Wally. Link included below.

� http://www.eia.gov/forecasts/aeo/pdf/0383(2012).pdf o Avoided Cost of Energy – no change

• Bibliography has to be at the end per IEEE requirements. Question (Sasha Levin): Does this standard address solar (PV) transformers installations

• This guide should cover it – have all the pieces in the document to cover these installations, customer has to understand how to apply these calculations to this type of transformer

• Generating xfmr when PV operating – Wally • Jeff mentioned 4 different scenarios customers use

o Utility at times specifies the transformer being used and customer must conform to the specs of that xfmr

• Brian K. mentioned “green factor” for utility • Al – don’t need to specifically address the PV gen xfmrs

New Business • None

Next Meeting • October 2013 St Louis, MO • Adjourned at 11:45am

11.1.2 Working Group on PCS Revisions to C57.12.90 Mark Perkins, Chairman; Craig Stiegemeier, Secretary Unapproved minutes: March 18, 2013, 11:00am-12:15pm, Ammersee II, Dolce Hotel, Munich, 1. Attendance Attendance rosters were circulated for those in attendance to record their presence and confirm their membership or guest status. There were 30 members and 29 guests in attendance. A roll call vote was taken, and a majority of the 65 active members of the WG were not in attendance, so there was not a quorum.

2. The Fall 2012 Milwaukee minutes were not approved, as there was not a quorum present at the start of the meeting. The plan is to conduct an E-mail approval of the minutes of both the Milwaukee meeting as well as these minute to the membership group.

3. Old Business The main task of the working group was to review suggested changes to section 9.5 for zero sequence testing. Prior to the meeting an email was sent to working group members and guests with the suggested changes to section 9.5.1 and 9.5.3. A number of members replied to the email with suggested changes. These changes were reviewed in the meeting and the reasons behind the changes were discussed. The following changes (highlighted in red) to Section 9.5.1 were included in the original email: The excitation voltage and current shall be established as follows: a) If no delta connection is present on the transformer and the transformer is a three leg core design, there is a risk of excessive tank wall heating due to the return flux from the core going

into the tank wall. To avoid this, the applied voltage should be such that the current is no more than 20% of the base rating of the winding being excited. This applies to both open-circuit tests and short-circuits tests as described in section 9.5.3. If the transformer is a five leg core or a shell form design the zero-sequence impedance is equal to the positive sequence impedance and the zero-sequence test is generally not needed. However, should the test be done, the applied voltage should not exceed 30% of the rated line-to-neutral voltage of the winding being energized for the open-circuit test, and the phase current should not exceed its the base rated value of the winding being excited for the short-circuit test. b) If a delta connection is present, the applied voltage should be such that the base rated phase current of any delta winding is not exceeded. The following changes to section 9.5.3 (highlighted in red) were included: NOTE – Applies also to auto transformers. For wye-wye transf ormers or aut ot ransf ormers wit hout a delt a tertiary that are 5 leg core f orm or shell form, Z3 is very large and t he zero sequence impedance is equal t o t he posit ive sequence impedance. For three leg core form wye-wye transformers, t he Z3 value is t ypically 5-10 times the Z12 measured value due t o t he "phant om delt a" eff ect of the tank and/or t ank wall shielding. The Z3 value should be t aken int o account in shor t circuit calculations involving the zero sequence impedance. Measurement s may be made at diff erent current levels t o est ablish t he non- linear curve for all f our dif ferent measu Four tests may be made to determine the zero-phase-sequence equivalent network, one of which is redundant. a) Test 1. Apply a single-phase voltage to winding 1 between the shorted line terminals of

winding 1 and its neutral. All other windings are open-circuited. The measured zero-phase-sequence impedance is represented by Z1No.

b) Test 2. Apply a single-phase voltage to winding 1 between the shorted line terminals of winding 1 and its neutral. Short the line terminals and neutral of winding 2. All other windings shall be open-circuited. The measured zero-sequence impedance is represented by Z1Ns.

c) Test 3. Apply a single-phase voltage to winding 2 between the shorted line terminals of winding 2 and its neutral. All other windings are open-circuited. The measured zero-phase-sequence impedance is represented by Z2No.

d) Test 4. Apply a single-phase voltage to winding 2 between the shorted line terminals of winding 2 and its neutral. Short the line terminals and neutral of winding 1. All other windings shall be open-circuited. The measured zero-phase-sequence impedance is represented by Z2Ns.

Egon Kirchenmeyer objected to the part in 9.5.1 that indicated that for a 5 leg core or shell form transformer the zero-sequence impedance is equal to the positive sequence impedance. After discussion by the chair with Egon, he presented the following suggested change to the information provided above on section 9.5.1: If the transformer is a five leg core or shell form design, the zero sequence impedance measured in open-circuit is very high and can be considered as infinity for most short-circuit studies and therefore a measurement is generally not needed. Only the zero-sequence impedance measured in short-circuit, which is nearly equal to the positive sequence impedance is of interest in these cases. and 9.5.3: NOTE - For wye-wye transformers or autotransformers without a delta tertiary: For five leg core or shell form transformers Z3 is very large, therefore the zero sequence impedance measured in an open-circuit test is nearly equal to Z3. The zero sequence impedance measured in a short-circuit test is nearly equal to the positive sequence impedance. For three leg core form transformers Z3 is typically 5-10 times the positive sequence impedance due to the "phantom delta" effect of the tank and tank wall shielding. Measurements may be made at different current levels to establish the "low current" section of the non-linear curve of Z3. The zero sequence impedance measured in a short-circuit test is nearly equal to the positive sequence impedance. V Sankar requested that we add the following information to the note in 9.5.3: For fault calculations, in Z3 branch one turn should be considered Shamaun Hakim asked that we clarify whether the 20% current limitation is phase current or the neutral current.

Based on these comments the chair suggested the revisions be modified (as highlighted in blue) as follows on section 9.5.1: The excitation voltage and current shall be established as follows: c) If no delta connection is present on the transformer and the transformer is a three leg core design, there is a risk of excessive tank wall heating due to the return flux from the core going into the tank wall. To avoid this, the applied voltage should be such that the phase current is no more than 20% of the base rating of the winding being excited. This applies to both open-circuit tests and short-circuits tests as described in section 9.5.3. If the transformer is a five leg core or a shell form design the zero-sequence impedance for the short-circuit test is equal to the positive sequence impedance and the open-circuit impedance has such a high value as to be negligible. Therefore, the zero-sequence test is generally not needed. However, should the test be done, the applied voltage should not exceed 30% of the rated line-to-neutral voltage of the winding being energized for the open-circuit test, and the phase current should not exceed its the base rated value of the winding being excited for the short-circuit test. d) If a delta connection is present, the applied voltage should be such that the base rated phase current of any delta winding is not exceeded. and 9.5.3: NOTE – Applies also to auto transformers. For wye-wye transf ormers or aut ot ransf ormers wit hout a delt a tertiary that are 5 leg core f orm or shell form, Z3 is so large as t o be neglect ed and t he zero sequence impedance is can be assumed as equal t o t he positive sequence impedance. For three leg core f orm wye-wye t ransf ormers, the Z3 value is t ypically 5-10 times t he Z12 measured value due to the "phantom delta" effect of the t ank and/or tank wall shielding. The Z3 value should be taken int o account in short circuit calculations involving t he zero sequence impedance. Measurement s may be made at dif ferent current levels t o est ablish the non-linear curve f or all four diff erent measurement s. Four tests may be made to determine the zero-phase-sequence equivalent network, one of which is redundant. a) Test 1. Apply a single-phase voltage to winding 1 between the shorted line terminals of winding 1 and its neutral. All other windings are open-circuited. The measured zero-phase-sequence impedance is represented by Z1No. b) Test 2. Apply a single-phase voltage to winding 1 between the shorted line terminals of winding 1 and its neutral. Short the line terminals and neutral of winding 2. All other windings shall be open-circuited. The measured zero-sequence impedance is represented by Z1Ns. c) Test 3. Apply a single-phase voltage to winding 2 between the shorted line terminals of winding 2 and its neutral. All other windings are open-circuited. The measured zero-phase-sequence impedance is represented by Z2No. d) Test 4. Apply a single-phase voltage to winding 2 between the shorted line terminals of winding 2 and its neutral. Short the line terminals and neutral of winding 1. All other windings shall be open-circuited. The measured zero-phase-sequence impedance is represented by Z2Ns. The following comments were made during a review of the suggested text changes: • Bertrand Poulin noted that in a recent test on a three-leg core form transformer without a delta winding, when 20% of the rated phase current was supplied for the open-circuit zero-sequence impedance measurement, the measured loss was five times the positive sequence load loss at rated current. This high loss is caused by tank wall heating. • Joe Foldi commented that during a single line to ground fault, the impedance would be different than what’s measured during the test – especially if a strong system is present to support the fault current. He suggested that it be stated in the standard that the impedance at full voltage is different. Joe will E-mail Mark with the comment and a suggestion to users The following notes were taken during a review of the procedure and suggested comments: • The suggestion for measurements at different current levels to better estimate the zero sequence impedance at full voltage levels. • Don Ayers suggested that consideration of the watts loss be measured, reported and limited to some value. • Bertrand Poulin commented that this was a good suggestion, as the measuring system typically in place can record and report this information.

• In general, those in attendance thought this was a good suggestion, and it will be considered as a new business item for the next meeting. Since we did not have a quorum at the meeting, the minutes of both the Fall 2012 meeting and the Spring 2013 meeting will be emailed to working group. The members will be asked to respond to the email to: (a) Approved the minutes of the Fall meeting (b) Review the business items and proposed changes to 9.5.1 and 9.5.3 and to respond to the email whether they approve, approve with comments or reject with reasons. 4. New Business - There was no new business 5. Attendance roll call – Before the meeting, the Working Group had 368 members & guests, broken down as the following: 65 Members 2 Corresponding Members 301 Guests After a review of the attendance rosters and the tallying of those attending, along with a change in membership from “Member” to “Guest” of those who have not attended the past 3 meetings and removal of either “Terminated” membership or participation status, the following is the composition of the Working Group: 67 Members – 38 attending the meeting (57% - a quorum) 2 Corresponding Members 311 Guests – 51 attending the meeting 6. Adjournment - Meeting adjourned at12:15 pm

11.1.3 PCS WG on “General Requirements C57.12.00” – Steve Snyder, Chairman; Enrique Betancourt, Secretary

March 18, 2013 3:15 PM; Dolce Munich Unterschleissham Hotel; Munich, Germany

The Group met at 3:15 PM on Monday, March 18, 2013, with 26 out of 69 members, and 20 guests present. Three (3) guests requested membership. The meeting was chaired by the Group’s Secretary, E. Betancourt, on behalf of the Chairman Steve Snyder, who was unable to attend. Scott Digby took notes as Acting Secretary. The statement of purpose of the WG was explained. As we did not have a Quorum, the minutes from the Milwaukee Meeting were not approved; the chairman of the WG will perform a survey among the Group’s membership for approval. Following guests requested membership to the Group:

David Ostrander Ameren Pontus Sundqvist ABB Scott Digby Progress Energy 1. Old Business.

The Acting Chairman reported that the minutes of the Spring 2012 Nashville meeting were approved by an email survey on November 20, 2012.

One old business for this WG, Item 87 “Table 15 Short-Circuit Apparent Power of the System”, was shifted for the next autumn meeting, after a final survey for the last proposed version of the Table can be carried out. Next, four Agenda Items were discussed within this meeting A. WG Item 96, Table 18 “Resistance Measurements for All Taps on Power Transformers”. Change Requested by : Joe Foldi – 2009 Ballot Comment. Requested Change: Resistance measurements should be done on all taps for Power Transformers, as a very important quality verification. This item has already been discussed in the last two meetings, including a survey which was performed among members of the WG and the PC SC. In response to the negative comments, Joe Foldi provided this time new inputs to substantiate his request. A practical example on how a smooth resistance profile would be expected for a transformer with all connections in good condition was explained in detail by Joe to the meeting attendance. Besides that, it was clarified that his proposal is applicable for Class II power transformers. The relevance of capturing problems with LTC connections before factory testing and before the field energization of the transformer was stressed through description of real cases from experience of several participants to the meeting. After a lengthy discussion, the Acting Chairman concluded the discussion as being reduced to following items, some of them still carried from previous discussions:

Need to propose pass/fail criteria for interpretation of measurement results Recommendation to investigate feasibility of a fast testing procedure Need to investigate on repeatability of test results in the field Demonstrate ability of the test to capture bad connections Evaluate if a faster and apparently simpler 120% overload test would capture connection issues

With these inputs, a new text will be prepared for this proposal, for a new survey within the WG and PC SC Groups. Next the second agenda item was discussed by the Group. B. WG Item 97, Table 18 “Operational Tests of LTC Equipment” Change Requested by: Joe Foldi – 2009 Ballot Comment Requested Change: Establish here (on Table 18) requirements for operational tests on the LTC equipment under full voltage (during No-Load test) and under full current (during Load loss test). The details of the LTC operational test should be described in C57.12.90. As for the previous case, an intensive discussion followed Joe’s explanation of technical background for this proposal, specifically for the load test, with questions being reduced to following items:

Need to define pass/fail criteria: gas levels, noise, current magnitude? Investigate practicality of the test for large power transformers, which would require frequent adjustment of capacitor banks. Investigate the possibility to substitute the load test with the simpler method of the “light bulb test”.

It was clarified that the no-load operational test cannot be devised as a substitute for the load test, and that the proposed tests should be mainly applicable to Class II transformers, where test time is less critical than for the case of smaller transformers.

As for the previous item, a new text will be prepared for this proposal, for a new survey within the WG and PC SC Groups. C. WG Item 99. Clarification Requested by Mark Perkins, Chair of C57.12.90 WG. Requested Clarification: Discussions in the C57.12.90 Continuous Revisions WG concerning the ratio and polarity test. It was raised the question whether the ratio required by standard C57.12.00 is based upon voltage ratio or turns ratio. The group discussed pros and cons of having the voltage ratios described on nameplate as true turns ratios, when the voltage ratio would be off by more than 0.5%. The case of error introduced by bridging position of tap changer reactors was newly brought up. It was mentioned as a practice to shift the transformation error over a wider range along the table of voltages on the nameplate. Raj Ahuja mentioned that he has been studying the case to make a recommendation, although he is not ready yet with his conclusions. Discussion on this Item will be continued in the next WG meeting. Last item discussed: D. WG Item 100, Table 7 “Nameplate Information in C57.12.00”. Change Requested by: Bipin Patel – April 21, 2011 email communication. Requested Change: To consider inclusion of Core Type description to the nameplate requirements for large power (Class II as a starting point) transformers. Core or Shell type, and for the three phase core type, if it three, five or seven legs; which should be considered as a minimum to be added. Fundamentals for the request are new potential problems, as those coming from Geomagnetic Disturbances (GMD), where the core type plays an important role on the equipment response and robustness. Core type information may be requested during technical reviews but might get lost through the years, while the nameplate stays with the transformer. It was mentioned that in some other places of the world users already specify this as a particular request. Besides that, it was mentioned that the core type has influence on zero sequence performance of the transformer, and from that perspective can be useful information too. In a straw ballot within the meeting attendance, 19 participants were in favor of including this information within the nameplate. No new business was discussed and the meeting was adjourned at 4:30 PM. 11.1.4 WG for IEEE Standard Requirements, Terminology, and Test Procedures;

for Neutral Grounding Devices, PC57.32 Chair: Sheldon P. Kennedy; Vice Chair: Tom Melle; WG Secretary: Fred Elliott The Neutral Grounding Devices working group was called to order at 3:15 PM on March 19, 2013. There were 11 attendees present. 1. Quorum was established from new membership survey - 7 working group members

were present with 4 guests. 2. Minutes from last meeting approved

3 A new draft 11.1 has been prepared by copying the information from draft 11 from July 2011 into a new IEEE Template copy. In the process, the revision marks were lost. A master of the new draft must be kept in Word 2003 format in order not to lose the macros.

4. Comments for the Reactor section have been submitted by Mike Sharp. The comments will be inserted into the existing draft.

5. Klaus Pointner has the IEC section on Ground Fault Neutralizers to submit. We have permission from IEC to use the information.

6. The grounding transformer section was discussed. The existing IEC and IEEE calculation methods give different results for the same requirement. The IEC method is straight forward based on physics. The IEEE method contains constants and factors that are not documented as to meaning or source. Adoption of the IEC method was discussed as a way to deal with the undocumented parts of the existing IEEE method.

6. Development of the new PC57.32 needs to move quickly because of the December 31, 2015 deadline for completion.

8. Sergio Panetta is preparing the Grounding Resistor and Combined Devices sections. 9. Guidelines for development of PC57.32 discussed in the Milwaukee meeting were

reviewed: a. Referencing definitions and general information that is not critical to the devices

being specified. b. Consolidating information about the different types of devices in separate

sections. c. Minimizing the use of large tables covering all devices.

10. Tom Melle will circulate the comment list that was used in the preparation of Draft 11. 11. Current Volunteers to work on the various sections of the document are:

a. Reactors – Mike Sharp (with possible assistance from Richard Dudley). b. Ground fault neutralizers – Klaus Pointner (with possible assistance from Klaus

Papp) c. Grounding Transformers - Don Ayers, Sheldon Kennedy, Fred Elliott d. Resistors – Sergio Panetta, Peter Balma e. Combination Devices – Sergio Panetta, Peter Balma Additional Volunteers were requested. Contact Tom Melle or Sheldon Kennedy if interested or if you know someone who is interested.

12. Two new members were added to the working group: Larry Kirchner and Ulf Radbrandt.

The meeting adjourned at 4:25 pm.

11.1.5 WG on Tertiary/Stabilization Windings PC57.158 – Enrique Betancourt, Chairman; Steve Snyder, Secretary

March 18, 2013 9:30 AM; Dolce Munich Unterschleissheim Hotel; Munich, Germany The Chair called the WG meeting to order at 9:30 am on March 18, 2013 and stated the Working Group’s purpose for preparing this Guide for publication. Brian Penny started service as Secretary for the WG. As of this meeting the Working Group consists of 39 regular members and 2 corresponding members. 20 Members were counted in attendance thus a quorum was attained. Additionally there were 34 guests with 9 of them requesting membership in the Working Group.

Baitun Yang Pennsylvania Transformers Dharam Vir SPX Transformers Solutions Frank Damico TAMINI Transformers Jerry Reeves EFACEC Jinho Kang Hyundai Heavy Industries Ken Fedor SMIT USA Lakhiani Virendra Transformers and Rectifiers Scott Digby Progress Energy Vijay Tendulkar ONYX Power

The minutes from the Milwaukee meeting were approved as submitted.

1. Old Business There was a general call to the Working Group for active participation and support in collecting and reviewing the materials required for this Guide’s creation and for volunteers needed in the development and writing of the chapters. The guide development process and the “key questions to be answered by our Guide”, which were provided to the Working Group before the meeting, were reviewed and discussed in detail during the meeting. Another document, distributed to the Working Group before this meeting, with preliminary descriptions and proposed responses to questions to be answered in each chapter of this Guide was reviewed and discussed. Following questions were part of the discussion:

How the BIL level of a stabilizing winding will be established. Testing recommended for a buried stabilizing winding. Application and effect of current limiting reactors. Recommendation to prioritize and document the information to be presented, as for example to first describe what functions the users may want to be provided by the stabilizing winding, followed later in the document by how it is provided and the effects it has on the transformer design by the manufacturer Another question brought up was if core flux density can affect the requirement for a stabilizing winding since low flux density generates smaller 3rd harmonics. It was noted that modern core materials have negated most of this issue. It was noted that a stabilizing winding does not automatically provide low zero sequence impedance such as when users specify short circuit withstand requirements. System designers need to provide the zero sequence system requirements, such as for relay settings, so decision or recommendation can be made by the manufacturer as if a stabilizing winding is necessary and how it can be properly specified and designed. Sanjay Patel mentioned that there are already standards that handle the subject of unbalance transformer operation and he agreed to provide information and references to the WG. Reference values for expected zero sequence impedance with 3 leg construction without a stabilizing winding should be given within the Guide, as it was clarified that this construction has a significantly higher zero sequence impedance than with a nested stabilizing winding. It was reiterated that the scope of this document applies only to wye-wye transformers when questions about other (specialty) applications were brought up for consideration of the WG. This particular subject will be discussed again later, in the next WG meeting.

Further discussion on the chapters was curtailed due to time.

The Chair requested draft documentation to be submitted within the next couple of months in order to prepare items for discussion at the fall 2013 meeting in St. Louis, where a first draft will be assembled and discussed in overall format, as well as a Time table for development of the Guide. Several references on stabilizing windings were distributed to the Working Group prior to the meeting and recommended for review as material relevant to the Guide. No new business was presented before the working group. The meeting was adjourned at 10:45 am. 11.1.6 TF on Revision of Section 13 of C57.12.90, Sound Level Measurement: The TF met at 1:45 PM on Monday, March 18, 2013 with a total of 55 in attendance. Of those, there were 16 Members, 3 Corresponding Members, and 36 Guests. Prior to the meeting, the membership had been adjusted with the number of active members set at 28 members. A quorum has been established after reviewing the signup rosters. At the meeting, an agenda was presented and corrections to the unapproved minutes of the fall 2012 Milwaukee meeting were requested. Prior to the meeting, these minutes were circulated to all members and corresponding members for review. Since no corrections were requested, the fall 2012 meeting minutes stand as Approved minutes. After the introductions, the next agenda item was presenting a summary review of the prior agreements of the TF. This review helps the membership stay in tune with the activities of the group without any regression of topics and helps maintain focus on the yet to be resolved topics that must be addressed. The review highlighted the following agreements:

� Making the wall sound reflection correction per IEC equation o But limiting the correction to 4 dB and limiting the number of test room cases to

4; instead of 7 dB and 7 cases in IEC. � Using the “Sound Intensity Method” as an alternate sound measuring method to the

“Sound Pressure Method” o With corrections of 1 and 2 dB to be applied to the measured level using the

“Sound Intensity method” if 4 < (Lp - Li) < 6 dB. o When the (Lp - Li) > 6 dB, the “Sound Pressure Method” is to be used and the

corresponding corrections for near – field, wall reflections, and ambient noise are to be applied.

� Measuring Load Noise when requested by the customer. o This will be valid over a range of 60 % to 130 % of rated current and corrected

per the IEC equation. � Keep the ONAN Sound Measuring contour at 1/3 m all around the transformer but

change the ONAF measuring contour to be 2 meters all around the transformer; the same as IEC.

� Total Noise Level is to be obtained by logarithmically adding the sound power levels of no load and load noise and then converting back to a Sound Pressure Level.

The next agenda item was an update by Dr. Chris Ploetner on the latest work of the IEC WG on the IEC noise measuring Standard and Guide.

� Work is underway on revision of both the 60076 – 10 (Standard) and the 60076010 – 1 (Application Guide) simultaneously.

o Since both documents go hand in hand, it makes sense to revise them at the same time.

� Clear rules for application and simplification of the documents without losing accuracy. o The reduction in volume of pages is achieved by eliminating duplication of

information in different parts of the documents. � Harmonization with IEEE. � The transformer height to be used is measured from the bottom of the transformer not

from the floor. � The formula for the surface area of the sound measuring contour 'S' is unified and the

Sound reflection correction “K” is clarified. � The standard measuring bandwidth will be the 1/3 Octave. � The walk – around measuring procedure is to be used as the standard. � A new template for reporting the sound measurements is included. � In the Application Guide, the topics presented are Basic physics, Sources, components

and characteristics of transformer noise, Measuring principles, Practical aspects of making sound measurements, and difference between Factory and Field sound level measurements.

The next item on the agenda was addressing proposed additions / changes to the text of clause 13 as agreed upon in the spring 2012 TF meeting. These are:

� The “Sound Pressure Method” had a comment regarding the “environmental corrections to be agreed upon between the manufacturer and the purchaser of the transformer”. A decision was made, based on Pierre Riffon’s suggestion and agreed upon by the attendees, to remove the agreement statement and to have “the final test report data include the measured noise levels along with the corrections used in determining the final value”. All agreed and the text was adjusted accordingly.

� The Near – Field Correction was suggested in order to compensate for the measuring error caused by the near – field reactive sound power around the transformer; which does not propagate beyond the transformer. The chairman originally suggested a 1.5 dB correction for the ONAN measurements and 0.5 dB for the ONAF measurements. Pierre Riffon suggested no correction for the ONAF measurements and using 1.0 dB for the ONAN measurements. All agreed and the text was adjusted accordingly. Also, in this meeting, a statement saying “No correction is to be made of the ONAF measurements” was requested and agreed upon. The statement will be added.

� A request was made earlier by Jeewan Puri to provide some direction to manufacturers as what possible solutions to environmental conditions causing an (Lp - Li) > 6 dB; when using the “Sound Intensity method” other than using the “Sound Pressure Method” and making the corresponding corrections per the Standard. In response, the following statement was added and was presented in the meeting: ”Above environmental conditions are typically caused by high ambient noise and / or High sound wall reflections. In this case, the transformer manufacturer could attempt to reduce the ambient noise and / or move the transformer into a larger test area / room, if feasible”.

� Reference to the statement in the Standard to “Measure no load noise of the transformer with the Tap changer in the principal Tap”, a request was made earlier by Dennis Marlow to add measuring no load noise with the transformer at a bridging position when the transformer has a Preventive Auto (PA). This is in spite of the fact that, in section 13.3.4 Tap changer, a statement reads “When the transformer is equipped with a tap changer, the transformer may, on certain tap changer positions, produce sound levels that are greater than the levels at the principal tap position. Sound measurements should be made with the transformer on the principal tap, unless otherwise specified”. This item was discussed in great detail in the TF meeting with a number of very good inputs from

many in attendance. Steve Antosz made a motion to require measurement to be made at the highest noise producing tap in addition to the rated position. This motion was approved by a 16 to 1 vote of the membership. However, this discussion brought a number of important and relevant issues:

� Who and how to determine what the highest noise producing tap is? � There are other applications, such as variable flux designs, SVC transformers

with capacitive loads, etc. where measurements need to be made at levels different than the rated voltage and tap position.

� Which measurement to use for the guarantee? Dr. Christopher Ploetner brought up the section of the IEC Standard that refers to this matter. Upon reading this section, it was recognized that it is a very good write – up that can be used in the IEEE Standard and would help settling this issue. Steve Antosz suggested that this section, from the IEC Standard, is circulated for additional review by the TF membership. This section will be forwarded to the attendees of the TF meeting along with the minutes of the meeting in order to get consensus on the desired wording with some harmonization with IEC. Two items brought up subsequent to the TF meeting are:

� Whether such a determination should be included in C57.12.90 or C57.12.00. � Different LTC tap positions are typically associated with corresponding voltage

levels that result in rated flux density in the core. It is only when the transformer is on a bridging position that the PA noise is included in the main transformer noise.

The Chairman then presented responses to 3 questions received from Jeewan Puri after the Nashville meeting. He will send Jeewan the answers after this meeting. Next, the Chairman presented factory and field measurements that support the revisions being made to sections 13;

� One showing that the change made in the ONAF contour makes a difference of 0.1 dB in the measured noise level.

� One showing that measuring the transformer noise level using the “Sound Intensity Measuring Method” provides measured noise levels at the factory that are almost identical to those measured in the field; without the errors associated with the “Sound Pressure Measuring Method”; namely ambient noise, wall reflections, and near – field effects.

� In the absence of ambient noise, noise levels measured in the field; using both the “Sound Pressure Method” and the “Sound Intensity method”, are about 2 dB apart at the 1/3 m contour from the transformer due to the Near – Field error associated with the “Sound Pressure method”. They become about the same within 2 – 4 m from the transformer where near – field effects are minimal. This represents the true noise level of the transformer as propagated from the transformer to the far field and into the community nearby the transformer.

The next main item on the Agenda was the “Determination of the Total Sound level of a transformer“. The Chairman presented the proposed methodology and text. He also included a numerical example of this calculation. He asked whether including such an example is needed. The answer by the TF attendants was in support of including the example. Nearing the close of the TF meeting, the Chairman presented a topic to be discussed in greater detail in the TF fall meeting. That was the need for Reference Load noise levels corresponding to the NEMA levels for No – Load noise of transformers. First, he presented how much Load

noise can affect the total noise of a transformer. He showed data vs. MVA for transformers that have high, medium, and low levels of no load noise. Those figures showed that Load noise can add 3 – 10 dB to the total noise of low and ultra low no load noise transformers. He then presented how tested Load noise levels of transformers of 20 – 400 MVA power ratings compared with values calculated using the Reiplinger equation. It showed that the Reiplinger’s curve represents an average value for load noise with about + 7 dB deviations. One transformer tested 12 dB > Reiplinger’s value. The Chairman suggested that one possibility for reference load noise levels could be obtained by adding 10 dB to values obtained by the Reiplinger equation. The Chairman then showed a comparison between the suggested Reference Load Noise levels vs. the NEMA TR1 table values, NEMA – 10 dB, and NEMA – 20 dB. The suggested load noise reference values were within + 2 dB of the NEMA -10 dB values for the transformers > 100 MVA. Transformers < 100 MVA would have Load noise levels several dB (s) below NEMA – 10 dB No Load noise levels. The Chairman asked other manufacturers to submit their Load noise measurements vs. Reiplinger’s values. The Meeting adjourned at 3:00 PM.

11.1.7 WG P60076-16 Standard Requirements for Wind Power Generator Transformers

Chairman: David Buckmaster, Vice Chair: Phil Hopkinson, Secretary: Steve Griffith The Working Group on Wind Power Transformers was called to order at 8:00 AM on Tuesday March 19, 2013. There were 86 attendees, 35 members present of a membership of 96 and 51 guests. A quorum was not present. Two members (Paul Jarmin and Frank Damico) requested membership.

1. The chairman opened the meeting and introduced the officers: Chairman: Dave Buckmaster; Vice-chairman: Phil Hopkinson; Secretary: Donald Ayers for Steve Griffith. It was verified that this was to be a joint standard with the IEC document.

2. The minutes from the fall 2012 meeting could not be approved due to lack of a quorum.

3. Phil Hopkinson made a presentation and identified five issue areas that he supported

including in the final document. a. Generation of high hydrogen gas – most probable cause due to lamination arcing

within wound core designs. Recommended corrective action would be the addition of a shield over outer high voltage coil. P. Hopkinson agreed to provide information for document annex.

b. High voltage winding failures due to vacuum switching - Recommended corrective action would be the addition of snubbers to reduce current chopping transients.

c. Safety in using Load Break Switches – Existing designs require the LV compartment door be opened before HV door can open to operate LB Switches allowing possible exposure to arc blast incidents. Recommended corrective action would be adding third door for access only to gauges and LB switches to prevent arc blast exposure. D. Buckmaster agreed to provide information for document annex.

d. Switch and DETC contact carbonization and thermal runaway – Another working group is developing recommendations for design and test for contact stability.

e. Low Oil Level – Exposure of LB switches, DETCs or fuses due to low oil levels – Possible most probable causes are due to filling when element is still hot, light loadings and low ambients. Recommendation to refer to Distribution Subcommittee for comments and recommendations.

4. Comments on first draft of Section 1, “Scope”

a. Add word “step-up” to description in scope b. Add static converter type transformers to scope c. Make tie-in to Photo-Voltaic transformer standard? d. Should reference to both AC & DC type wind generators be made e. How best to address requirements for both IEC and IEEE requirements. f. Should scope include units higher than 36 kV – Possibly to 69 kV?

5. Comments on first draft of Section 2, “Normative References” a. Documents shown in Normative Reference section must have direct reference

within the standard. b. Other references should only be included in a Bibliography.

Meeting broke at 9:15 AM for break. Meeting was reconvened at 9:30 AM.

6. Comments on first draft of Section 3, “Terms and Definitions” a. Formatting must conform to IEC writing standards b. Substituting definition for word should not change emphasis or meaning of

sentence.

7. Comments on first draft of Section 4, “Service Conditions” a. Document must address specific requirements of both IEC and IEEE reference

documents b. Document should maintain existing IEC wording and where needed, separate

paragraphs shall be added for specific IEEE needs. c. Recommended utilizing IEC temperature nomenclature of “C” for absolute

temperatures and “K” for temperature differences. d. Restore reference to temperature limits. Suggestion made to just make

reference to the appropriate IEC or IEEE document rather than trying to incorporate all variations in this document.

e. Section 4.7 – add reference to C57.12.94 to better define ventilated dry type application. Delete last sentence in section.

f. Maintain dry type impulse wave polarity requirements from both organizations. g. Section 4.8 – Change emphasis of wording to state reduced air strength may

allow onset of PD, not vice versa. Add appropriate reference to IEC and IEEE. h. Section 4.3 – insert after word increase “transformer ambient temperature and in

consequence” ... Separate ambient requirements with references to the appropriate organization shall be maintained.

8. General Comments

a. Start with existing IEC document; add only necessary sections or subsections to cover IEEE specific requirements.

b. Comments on early draft will be distributed to the individual task force groups to be integrated into a draft of the standard. – All changes should start with clean draft of IEC P60076-16 with tracking turned on. New modified drafts of each section shall be completed within 30 days and sent to the Chairman who will distribute to the full working group.

c. The five areas discussed above in 3. should be added to the IEC document as individual Technical Annexes to document the identified problems.

d. One suggestion was that items that are unique to IEEE or North American market should only be added to the document as an annex.

9. Rick Marek volunteered to head up a task force to create the Bibliography and

expand Annex A covering cooling and harmonics. Sheldon Kennedy agreed to assist on expanding the harmonics section.

10. Next Meeting

The next in person meeting will be held at the Fall IEEE Transformer Committee meeting in St. Louis, Missouri during the week of October 20-24, 2013.

11. Adjournment The meeting was adjourned at 10:45 AM.

11.1.8 – WG on “Distributed Photo Voltaic (DPV) Grid Transformers” PC57.159, Chairman Hemchandra Shertukde; Vice Chairman: Mathieu Sauzay; Secretary: Sasha Levin

Munich, Germany Tuesday, March 19, 2013 AGENDA Introduction Roster and Quorum Verification Approval of the Milwaukee Meeting Minutes Action Items Review Presentation / Tutorial “Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems” by C. Jordaan Presentation / Tutorial by E. Betancourt Discussion on the Chapters of the Guide: Chapter Leaders Report (please provide and review already collected and collated materials) Recruitment of New Participants to the WG Plan for the Next Steps on Writing the IEEE Guide New Business The Working Group met in the Ammersee I room of the Dolce Munich Hotel. This is a second meeting of the WG. The meeting was called to order at 8:00 am by Chairman Hemchandra Shertukde. The meeting was convened with 22 participants present, 12 of them are members (which constitute a quorum out of 23 current members in the roster), 4 participants requested a membership. Old Business Milwaukee Meeting Minutes were approved. New business 1. C. Jordaan provided a very thorough and thoughtful presentation on the power converting system of the solar power generation, including the interface between inverters, transformer and a power grid. The following issues were highlighted as of interest to be addressed in the IEEE Guide:

- Definition of a “Step-Up Transformer” for DPV PGS - Recommendation for efficiency for DPV PGS transformers (e.g. CEC efficiency) - Transformer overload capability at reduced ambient temperatures - Impact of short circuit current of inverters (differences between inverts and rotating machines) - Advantages and disadvantages of different winding and core designs - Recommendation for useful warning signs - Effect of daily energizing operation (power savings during night) - Impact of solar irradiation Christoph is going to provide the presentation that will be placed on the protected WG C57.159 web-site (ACTION). The presentation was followed with the discussion: - S. Sarkar – in case of the load difference between inverters, there are can be non-symmetry problems in a transformer; the limits of the non-symmetrical load shall be defined - S. Som – short circuit and other fault of the inverters are effecting transformers, our WG would like to have an information on the frequency of this potential events C. Jordaan – IGBT thyristors have own protection system, but fault can happen; depending on the nature of the fault, the impact on the transformer can be different. Christoph has recommendations in this regard and can provide them to the WG (ACTION). - J. Yu - are there some other transformers in the system in addition to the step-up transformer? C. Jordaan – yes, some systems have special auxiliary transformers on the secondary side of the transformer which is used for power supply to the inverter and other auxiliary needs. - J. Roach – in reality, there are multiple inverters and transformers on the system of the solar plant that collect power and then supply it to the grid through a collector transformer. J. Schneider – the solar power plant has a string of inverters and transformers; the operation of protection system with arresters, etc. and the influence of this operation on the transformers can be pretty complicated. Also, the connection of other users (heating, etc.) to the same system can create a complex power flow. C. Jordaan – you also need to understand that solar power generation system generates 30-50% more power than power converted to the system. As Christoph ran out of his business cards, he permitted to distribute his coordinates to the WG (ACTION). 2. E. Betancourt continued the presentation / tutorial. Enrique reviewed transformer specifications from different customers summarizing differences and topics of interest: - some customers specify more than 5% harmonic content - unusual connection when several inverters connected in parallel to one transformer winding - shields are used to de-couple HV side from LV side to isolate LV side from HV side commutations - generally, there isn’t enough information on grounding - arc flash protection is a very important aspect of transformer protection - as a rule, transformer OEM does not participate in the analysis of the system in order to make an input in the configuration and parameters of the transformer; we can make an input by writing the Guide. Enrique will provide the presentation for the distribution to WG (ACTION). 3. Discussion on the Chapters of the Guide. - A. Levin commented that numerous topics of WG’s interest have been identified in the Task Force Position Paper, Chapter-topic matrix and during the described above tutorials.

WG shall start addressing those topics and include them in the Chapters of the Guide. Some of the topics of interest have been reviewed. - E. Betancourt commented that we need to concentrate on the current status of the DPV PGS and on the fact that, ultimately, we need to harmonize approaches and interests of different parties (transformer OEM, inverter OEM, developer and end user). - S. Kennedy informed that he continues work on the Transformer Design and Construction section of the Guide; one of the aspects that he will be addressing is high-frequency disturbance and shield functions, design and effect on the transformer’s parameters (impedance, harmonics, etc.) (ACTION). - E. Betancourt and H. Shertukde will be working on the section discussing advantages and disadvantages of different winding and core configurations (ACTION). - S. Sarkar commented that we need input from developers and end users on the recommendations on efficiency of DPV PGS transformers. J. Yu will try to contact a developer in order to ask for the input (ACTION). - S. Sarkar will be working on the topic discussing impedance requirements and optimal ways of achieving the required impedances in the multi-winding transformers (ACTION). - J. Schneider will work on the over-current protection recommendations. - J. Yu commented that DGA diagnostic needs, probably, to be specified for these transformers. C. Stiegemeier noted that correctly designed transformer may not need this type of continuous diagnostics. S. Levin commented that the complex loading, switching operation and protection of this type of transformers may warranty the DGA anyway. J. Roach confirmed that he continues working on the “Transformer Maintenance and Diagnostics” Chapter of the Guide (ACTION). - S. Levin will be sending proposals on other topics of the Guide for the WG discussion. With no new business the Meeting adjourned at 9:15 AM. 11.1.9 TF to Investigate the Interaction between Substation Transients And

Transformers in HV and EHV Applications Chairman Jim McBride

Task Force Meeting took place on Tuesday at 3.15pm

47 people in attendance 15 members present The chair opened the meeting opened with introductions of members and guests. The below goals for the group were reviewed for those not present in Milwuakee. Goal: Prepare a TF report on the need to revise the C57.142 guide to extend to HV and EHV applications. Deliverables: TF report and recommendation on forming a WG to revise the guide (or not) TF Objectives

• Establish the present target voltage class range of the C57.142 guide • Gather field data, reports and literature on HV and EHV failures related to substation

transients and transformer interaction • Get input from the other technical committees concerning the interactions between

substation transients and transformers at HV and EHV applications • Review IEC and CIGRE standards

• Recommend if there is sufficient need to revise the guide and if WG should be formed. • Recommend high level changes to the guide (if it should be revised) • Prepare final report to the SC and present work in SC or tutorial session

The group looked at the first objective to establishing the target voltage range of C57.142

1) Present C57.142 guide does not state a target voltage range. Present intro states that the phenomenon primarily occurs at 38 kV and below, but may occur at any voltage.

2) Present guide excludes inductively loaded transformers and solid state devices. 3) Examples in present guide are directed toward lower voltage cases.

Phil Hopkinson stated that additional experience gained from actual cases should allow for extension of the guide to wider voltage range. Bertrand Poulin suggested specifically investigating Generator Transformers operating in back feed mode, citing many failures of these types of transformers operating under back feed conditions. Chair suggested requesting input from other IEEE apparatus committees (Switchgear) Chair suggested doing a review of existing IEC and CIGRE material. Quorum count was taken, and a quorum was achieved. Minutes from Milwaukee meeting were approved. A survey is being prepared to send to utilities to request input on failures associated with transients and HV and EHV systems. The intro wording of this potential survey was displayed for review by the group. Pierre Riffon suggested including adding Reactors to the scope, in addition to Transformers. Phil Hopkinson agreed this would be a good idea. The chair stated that the present guide covers Transformers only, not Reactors. A comment was made that some manufacturers are already offering snubber products, and questioned whether these products reference the guide, or vice versa. Same commenter requested whether there was a possibility to better identify which transformers are at risk, by doing a low voltage “ping” test to look for dangerous resonance frequencies. Phil Hopkinson commented on a 46 kV - 13 kV transformer with an SF6 breaker, and a 200 Ft permanently connected cable from the secondary terminals to the load. The transformer failed when the SF6 primary breaker operated, without any switching taking place on the secondary side. Phil stated that most failures he has seen involve a coaxial HV cable connected to the transformer. In another case, installing an electrostatic shield on the transformer winding would prevent the transformer failure. Inductive load makes the problem worse. Bertrand Poulin stated that better models for the transformers and their surrounding circuitry in the substation are needed in order to analyze the effect of the transient inside the transformer. An FRA characterization only predicts terminal characteristics, and not whether the transformers can internally withstand the voltage internally.

Phil Hopkinson made a request to the group for utility members to contribute data from actual failure cases, and not to be “embarrassed” to share the data. The individual questions of the potential survey were displayed for review by the group. Target recipients of the survey are intended to be key selected transformer users who have experience with transformer failures where switching interaction is suspected as the source of the transient. Phil suggested that in some failures, the transformer winding may be withstanding the transients, and that the failure location may be in the bushing. The chair showed an example of an energization transient recorded on a 230 kV / 20 kV 60 MVA transformer and an S&C Mark 4 Circuit Switcher. Bertrand Poulin stated that the real danger to the transformer takes place when re-strikes are close enough together that the transient ringing from successive restrikes overlap in time, and the stress combines at points within the transformer. Phil Hopkinson mentioned that cable reflections on short cables also combine to cause superposition of stresses at the transformer terminal. The chair asked for volunteers from the TF to work on specific TF objectives. The meeting was adjourned at 4:25 pm.

11.2 POWER TRANSFORMERS SC – JOE WATSON

The Power Transformers Subcommittee met on Wednesday, March 20th, 2013 at 1:30 p.m.

with sufficient attendance to reach a quorum.

The minutes from the Fall 2012 meeting in Milwaukee were approved.

11.2.1 WORKING GROUP AND TASK FORCE REPORTS

11.2.1.1 WORKING GROUP FOR REVISION OF C57.17, REQUIREMENTS FOR ARC FURNACE TRANSFORMERS – Robert Ganser, Chairman No meeting held in Munich.

11.2.1.2 WORKING GROUP FOR REVISION OF C57.93, IEEE GUIDE FOR

INSTALLATION AND MAINTENANCE OF LIQUID-IMMERSED POWER TRANSFORMERS – Mike Lau, Chairman Chair Mike Lau called the WG meeting to order at 11:00 am on March 18, 2012. 6 of 21

members were present so there was not a quorum. 20 guests also attended, for a total

attendance of 26. 6 guests requested membership.

The Fall 2012 meeting minutes could not be approved due to a lack of quorum. This will be

done via e-mail to the members.

Doble has agreed to share their transformer processing guide with this working group. The

chair gave a brief overview of the Doble guide to the working group. A task force was set up

to review the Doble guide and create a section to include inC57.93. Task force members

include Derek Baronowski, Wally Binder, Mike Lau, Tom Melle, Paul Mushill, and Ewald

Schweiger. The Doble guide will be posted on the website but access will be restricted to

the task force members via special password.

Ewald Schweiger volunteered to compare the transportation material in C57.93 with the

transportation guide, C57.150 and identify duplicate information that should be removed

from the installation guide.

Ed teNyenhuis of ABB gave a presentation on drying transformers using the low frequency

heating (LFH). Mr. teNyenhuis advised this process is for wet transformers, such as those

exposed to atmosphere for extended time during a maintenance cycle, but not for routine

dry-outs. General criteria for how long to apply LFH is liters/hour moisture removed.

Removal values are based on transformer size and experience. Mr. teNyenhuis agreed to

write a section on LFH for use in C57.93.

John Luksich of Cargill gave a presentation outlining the handling and maintenance of

natural ester fluids used in transformers. Maintenance and handling procedures for natural

esters are similar as those for mineral oil. Where dry air is used for mineral oil procedures,

dry nitrogen should be substituted for use with natural esters. Oxidation issues and

concerns was also discussed. A question was raised re the use of natural esters with

combined forced oil/ forced air coolers because the higher viscosity of the fluid prevents

necessary turbulence requied for forced oil/forced air cooling. Mr. Lukisich stated use of

natural esters in this case might not be a good application of the fluid.

It was suggested that natural ester filled units add viscosity tests to the routine test suite,

especially retro filled units.

Both presentations will be posted on the WG website.

The working group meeting was closed by acclimation at 12:15 pm.

11.2.1.3 WORKING GROUP FOR REVISION OF PC57.116, GUIDE FOR

TRANSFORMERS DIRECTLY CONNECTED TO GENERATORS – Gary Hoffman, Chairman Roster & Membership Members – 11 of 29 in attendance. Guests – 15. Guests requesting membership – 2, James Campbell and Ramsis Girgis were granted membership. Total attendance – 26. Attendance taken of Members & quorum was not achieved. Minutes of Milwaukee Meeting will be sought via 30 day electronic motion. The Chair indicated that this project is nearing completion Draft D1.4 Straw Ballot was discussed: The Chair thanked the participants of the Straw Ballot: 111 comments received. The Chair recognized and thanked the following WG members for their work to resolve the 111 comments: Mark Baldwin, Peter Balma, Bill Griesacker, Dave Harris, John Lackey, Dave Wallach, and Joe Watson Draft 2.1 was discussed. The Chair shared two issues regarding the citation of the wrong clause of IEEE Std C57.12.00 in Clause 7.4 and the choice of the correct normative reference of IEEE Std 666, The next steps were discussed and the following consensus achieved from the WG:

• A 30 day electronic motion for Sponsor Ballot will be initiated for Draft 2.2 to WG Members and Corresponding Members if permitted by WG P and P’s with the following responses requested:

• Approve to ballot without comment, Approve to ballot with comments and proposed alternative text or Disapprove to ballot with comments and proposed alternative text. Should approval rate of respondents meet 67% the Chair will initiate the ballot invitation process, revise the draft as necessary from comments received, and submit either D2.2 or the revised draft for Mandatory Editorial Coordination. Meeting was adjourned.

11.2.1.4 WORKING GROUP FOR REVISION OF PC57.125, GUIDE FOR FAILURE INVESTIGATION, DOCUMENTATION, ANALYSIS AND REPORTING FOR POWER TRANSFORMERS AND SHUNT REACTORS – Wally Binder, Chairman Quorum was not established – 20 working group members were present and 49 guests.

It was stated at the meeting that quorum was established. This statement was made in error.

Review of Draft 4 which was previously distributed to the working group should be

completed by June 2013. The results should be ready for discussion at the Fall 2013

meeting.

A discussion of the Draft 4(D4) Survey was held. WG members are to review the draft based

on the instructions in the email. The comment spreadsheet should be filled out as

appropriate. In addition to a general review, particular items to note include the use of the

term “insulating liquid” and the contents of the bibliography and reference.

Tom Melle (Vice Chairman) will be attending the CIGRE A2.45 meeting in April of this year. •

Task Force on New Work - DFR and SFRA testing will be included in the document.

The proposed insertion of the “safety clause” from C57. 152 into C57.125 resulted in a lively

discussion. Since this clause has made it through the approval process, it may be

appropriate. A vote was taken. however the vote was invalid due to lack of quorum.

11.2.1.5 WORKING GROUP STANDARD REQUIREMENTS FOR PHASE SHIFTING TRANSFORMERS WG IEEE/IEC 60076-57-1202 9 (Previously planned as revision of C57.135, Guide For The Application, Specification And Testing Of Phase-Shifting Transformers) Raj Ahuja, Chairman / Paul Jarman, Vice Chair / Stephen Antosz, Secretary The WG met from 11:00 AM to 12:15 PM at the Dolce Munich Hotel.

Welcome announcements were made. Introductions of all in attendance were done. The minutes of the previous meeting were approved. The Agenda was presented.

We had a quorum. There were 15 of 25 members in attendance and 31 guests. 5 guests requested membership and will be added after they attend at least 2 meetings as a guest and participate in the work of the group.

We reviewed the target schedule below and updated some of the dates and locations as shown in red (italics).

Target Dates

– 1st CD March 31st 2014 – CDV October 2014 – IS/TS March 31st 2015, 1 Year Extension possible if needed – PAR Expires 12/31/2016 Meeting Schedule:

• 1st meeting on Oct 23rd 2012 at Milwaukee USA • 2nd meeting Jan 30th - 31st 2013, at London • 3rd Meeting March 19 & 21, 2013, at Munich • 4th meeting June 5 & 6, 2013, hosted by ABB in Bad Honef, Germany – Finalize 1st

WG Draft

• 5th meeting Oct 15 & 16, 2013, hosted by SPX Waukesha in Milwaukee prior to IEC TC 14 (Oct 17 & 18)

• 6th meeting in Oct 2013, at St Louis USA, during IEEE • 7th meeting in Jan 22 & 23, 2014 hosted by SMIT in Nijmegan • 8th meeting in March 2014 TBD – Finalize Draft for Circulation to Power

Transformers SC and IEC members

We reviewed the latest draft. Some discussions ensued. Here are the highlights.

• Joe Watson asked if we should add text about types of PST’s. Paul Jarman said yes only if it applies to testing or something, but not for information since that is covered in the PST Guide. • Joe Watson suggested we consider using this same WG to do maintenance on the PST Guide. Paul Jarman pointed out that there is a procedure to do this in the IEC/IEEE dual logo agreement so should not be a problem. • We reviewed the section on Normative References and no changes were made. Basically it says, V if the purchaser does not specify then the IEC references are the default, except in North America where IEEE references are the default. • We may move clause 4 to clause 2 for better flow, but there may be restirctions in the IEC template. • We should include a section on nameplate requirements. • Section 5.2.5. The NOTE should be expanded to be more descriptive. • Section 6.4. Add an example in the text or in an Annex. • Section 6.12. Add text for sound level testing. • Section 6.13. The 1g limit for transport acceleration should be increased to a realistic number, or deleted. Maybe we can refer to IEEE’s transportation guide. • Section 7.1.3. Should we add a reference to IEEE 693 Seismic Guide? IEC has no seismic standards. • Section 12.7.3 should be expanded with additional wording to strengthen it.

We reminded everyone about the Thursday afternoon meeting where we will continue to

work on the Standard.

We will not have a Thursday afternoon meeting in ST Louis since the previous week in

Milwaukee will have a meeting.

It was discussed that once this Standard is complete, we should consider keeping this

working group together to do maintenance on the PST Guide.

The meeting adjourned.

Postscript note -- There was another joint meeting this week at the Dolce Hotel from 1:00-

5:00 PM on Thursday, March 21st with a small group of people who continued to work on the

document, addressing most of the submitted comments to date. A revised document will be

sent by Paul Jarman.

11.2.1.6 WORKING GROUP FOR THE REVISION OF PC57.140, GUIDE FOR EVALUATION AND RECONDITIONING OF LIQUID-IMMERSED POWER TRANSFORMERS – Roland James, Chairman / Paul Boman, Vice-Chair / Saurabh Ghosh, Secretary The meeting was called to order to order at 1:30 pm on March 19, 2013. The Chair welcomed all. Introductions of attendee are followed. Roll call of only the members was taken to verify if the group had a quorum. A quorum was established. The minutes of the fall 2012 meeting were approved as written. The chair reminded the Working Group that the PAR will expire on December 31, 2015. The results of the straw vote ballot were announced. Fifteen ballots were returned. The vote distribution was 3 approve, 11 approve with comments and 1 disapprove with comments. The comment classifications were 49 technical, 112 editorial and 15 general. Volunteers to form a ballot resolution task force were requested. Five members volunteered. After the straw ballot comments are resolved the Working Group will be polled for approval to move to Sponsor Ballot. Once approved by the Working Group to do so the Invitations to Ballot will be sent and the draft will be submitted for MEC Review. If the balloting commences as planned, prior to the Fall Meeting in St. Louis, this Working Group will not meet. The floor was opened for discussion. There was none. There being no new business, the meeting adjourned at 1:55 P.M.

11.2.1.7 WORKING GROUP FOR DEVELOPMENT OF PC57.153, GUIDE FOR PARALLELING TRANSFOREMRS – Tom Jauch, Chairman / Mark Tostrud, Secretary 34 total attendees. 16 of 31 members were present. 1 corresponding member. 17 Guests

(5 new). Two attendees requesting membership were attending their second consecutive

meeting and will be added as members

Introductions

Quorum was achieved

2/3 of working group members need to vote affirmative to go to ballot

Jim Graham converted the draft guide to the official template and reviewed the work that

remains to be done.

o IEEE fills in the balloters

o Definitions need to provided

o Links to figures need to be added

Section 4.4 – a large number of questions were received on this section. Tom Jauch

reworded the section to make it clearer.

o Revised wording was sent to members prior to the meeting

o Comments/feedback was requested during the meeting – none received

o No decision was made on the rewording as members did not have sufficient time to

review it

Tom Jauch made a motion to remove the Commissioning, Troubleshooting and Application

Comments from each section of the guide

� 1st - Daniel Sauer

� 2nd - Murty Yalla

o Discussion

• It is difficult to include this information without referring to manufacturer specific components

and procedures

• Trouble shooting information is normally provided by the manufacturer

o Vote

• Yes - 11

• No - 0

Power Factor Method

o Section 9.1 Operating Principles

o Tom Jauch made a motion to change the formatting on the section

• 1st - Jim Graham

• 2nd - Daniel Sauer

o Vote

• Yes – 10

• No – 1

Discussed the definitions to be included in the guide

� If it is referenced in C57-12.80 it would not need to be in the guide

� If it is in the IEEE dictionary, it would not need to be in the guide

� Definitions already draft were reviewed

� Tom Jauch volunteered to draft the definition section

Normative References

o Need to add a Normative Reference to C57-12.80

Paralleling Methods

o Application summary

� Jim Harlow proposed adding a table

� Members agreed a table would be helpful but proposed a different format be used

� Tom Jauch will distribute sample formats for review

Negative (Reverse) Reactance Method

o Section still needs to define a method for how to calculate the R setting when using this

method.

Motion to Adjourn

� 1st - Daniel Sauer. 2nd - Hemchandra Shertukde

Meeting was adjourned at 4:30pm

11.2.1.8 WORKING GROUP FOR DEVELOPMENT OF PC57.156, GUIDE FOR TRANSFORMER TANK RUPTURE MITIGATION OF LIQUID-IMMERSED POWER TRANSFORMERS AND REACTORS– Peter Zhao, Chairman The Working Group for the Guide for Tank Rupture Mitigation convened Monday morning at 11:00 am. Working Group Chairman Peter Zhao and Vice Chair Robert Thompson were not

able to attend this meeting, and in their absence the meeting was chaired by Josh Herz with assistance from Craig Swinderman. In attendance were 8 members and 17 guests, with 5 guests requesting membership. A quorum was not obtained, so the minutes of the previous meeting were not approved, and no official business was conducted. The latest comments received for Draft 1 of the guide were reviewed during the meeting. Several editorial comments were reviewed and changes recommended to be incorporated into the document. It was also recommended to describe in the Appendix of the guide exactly how the arc energies from internal faults in different voltage class transformers contained in Table 1 were calculated. In section 6.2 of the guide, there was discussion on whether or not the entire Transformer Tank Pressure Reducing System should be required to be completely assembled on the transformer in the factory, or if this item should be subject to agreement between user and manufacturer. The agreed changes will be incorporated into the guide and a revised draft of the document will be prepared. A completed draft of the guide is to be finished by fall 2013 in preparation for review and starting the balloting process. The meeting adjourned at 12:15 pm.

11.2.1.9 WORKING GROUP FOR DEVELOPMENT OF PC57.157, GUIDE FOR CONDUCTING FUNCTIONAL LIFE TESTS FOR DE-ENERGIZED TAP CHANGER CONTACTS – Phil Hopkinson, Chairman

Attendance: Members 16 (out of 22). Guests 21. Total 37

The Working Group was called to order at 1:50 PM on March 18th, 2013.

A. Introductions The chairman welcomed attendees and introduced the new secretary. There was some

discussion concerning active members. A comment was made from a member that if

person did not attend 2 consecutive meetings they should be removed as an active

member. It was determined that the roster would be adjusted by changing members that

have missed consecutive meetings to corresponding members in the AM System.

Attendance was taken and the chairman decided for the purposes of this meeting that a

quorum was present.

B. The minutes were approved from the October 2012 meeting in Milwaukee, WI. a. Motion-J.Sewell, second-H. Shertukde, none opposed.

C. The chairman brought up Draft 4 of the PC57.157 document for review/comments. 1.1 Scope – C. Colopy questioned whether to add in more detail to clarify “infrequently

operated.” The chairman stated that the document will be circulated for comments to the

working group and to capture this type of information.

5.3.4 Example test setups – The chairman brought up the figures of example test setups for

the group to review. A comment was brought up by L.Dix to change the figures to be more

generic representations of setups. The secretary agreed to create new figures by 3/30/13

for use in the guide.

Appendix – Comment was made by C. Colopy to add a decision tree for when to use this

guide.

D. Future Work A comment about the title of the meeting was brought up by A. Sarkar. The meeting title of

WG Functional Life Tests, De-energized Tap Changers (DETC) is a deceiving title since the

guide is for functional life tests of contacts. The secretary has checked with Greg Anderson

who posts the meeting titles and he will change the title of this working group meeting to be

a shortened version of our guide title. WG Functional Life Tests, De-energized Tap

Changers (DETC) PC57.157 will be changed to WG Functional Life Tests on Switch

Contacts PC57.157.

Draft Guide 5 will be circulated for comments after adding in general test setup examples by

3/30/13. Guide will be circulated to both members and guests of this working group. The

chairman suggested a date of 5/1/13 for comments to be submitted.

Chairman suggested to use a format similar the IEC commenting with the following columns:

-Area of document

-What is currently stated in guide

-What the reviewer proposes the guide to state

-Reason(s) for comment

-Reviewer comments

It was suggested to use a task force to review the comments received. Representatives

from Reinhausen, ABB, and Quality Switch were suggested by the chairman to be a part of

this task force.

The secretary changed 23 members to corresponding members based on the working

groups suggestion to change members to corresponding members if the person does not

attend 2 consecutive meetings. The working group now has 22 members and 24

corresponding members. Lists of these members are located at the end of this document.

E. Time and place of next meeting

Next in person meeting will be at the Fall IEEE Transformer Committee meetings in St.

Louis, MO during the week of October 20-24, 2013.

F. Adjournment The meeting was adjourned at 3:00PM

11.2.1.10 WORKING GROUP FOR REVISION OF IEEE STD 638-1992, IEEE STANDARD FOR QUALIFICATION OF CLASS 1E TRANSFORMERS FOR NUCLEAR POWER GENERATING STATIONS – Craig Swinderman, Chairman

The Working Group for revision of IEEE 638 did not meet during the Munich session in

March 2013.

Draft 9 of the document has completed the initial round of balloting. Out of 87 balloters, a

79% response rate was achieved, with 94% Approval rate and 2% Abstain rate. 56

comments were received, including 4 Negatives.

Since the initial ballot, one of the Negatives has changed the vote to Approve, with the

Approval rate now at 95%.

The working group has been working on comment resolution and updating the document to

reflect the changes made, and is nearly complete with this process. The revised document

will be submitted for the recirculation ballot shortly.

A PAR Modification was made to remove the date from a related standard referenced in the

scope of the PAR, and to change the reference from “self-cooled rating” to “base rating”.

This date can now be removed from the referenced standard in the body of the document as

well, which will address several of the comments received in balloting.

A PAR Extension until December 2013 has been granted, in order to allow time for the

comment resolution process and recirculation ballot in order to complete the work for

submitting the standard.

11.2.2 OLD BUSINESS

None.

11.2.3 NEW BUSINESS LTC/PA issue discussion by Joe Foldi

An LTC / PA issue has been identified, that at least in one occasion, the transient voltage,

during the diverter switch operation of the reactor type tap changer, exceeded the tap

changer and the PA limits. This transient voltage occurs, when one moving contact is open

(for a short time) and the full load current is carried by one branch of the PA windings only.

In this case the Reactance of the PA is much higher than with both branches in circuit for

the load current. This high Reactance times the load current generates high transient

voltage, which is usually not known and/or considered in the PA design. The purpose of the

Study Group would be to provide proper description of this occurrence, so that the PA could

be adequately designed.

WEBSITE REORGANIZATION

A table showing all Standards and Guides that the POWER SC coordinates is shown under WORKING GROUPS. The goal is to have the project or standard name, status, officers (even if inactive) and a ready references of the active WG / projects (or link to separate project webpage for very active groups). See the web hyperlink shown in next item which covers both Active & Inactive groups.

11.2.4 STATUS OF “INACTIVE” GROUPS Please see the Power Transformers Subcommittee webpage table listing of all working groups under the Power SC for “Inactive” WGs and TFs at the following hyperlink: http://www.transformerscommittee.org/subcommittees/power/Transfo_SC.htm Respectfully submitted on behalf of Power Transformers SC: Joe Watson – Chair Bill Griesacker – Vice Chair Kipp Yule - Secretary

11.3 UNDERGROUND TRANSFORMERS & NETWORK PROTECTORS SC – CARL

NIEMAN

Introduction/Attendance

The Underground Transformers and Network Protectors Subcommittee met on Wednesday, March 20, 2013, in the Alpsee room of the Dolce Munich Hotel in Munich, Germany, at 11:00 AM with 10 members and XX guests present.

Membership

Quorum was achieved with 8 out of the 14 members attending, 4 guests requested membership.

Approval of Minutes

The minutes of the October 23, 2013, meeting in Milwaukee, WI were reviewed. A correction to the minutes was made to indicate that the C57.12.23 standard is valid until 2019 instead of 2018. George Payerle motioned; Jeremy Sewell seconded; a vote was taken and the minutes were approved as amended.

Working Group Reports

11.3.1 Underground Single Phase Transformers (C57.12.23) – A. Traut, Chairman The WG did not meet. The document was published in April 2009 and is valid until 2019. 11.3.2 Three-Phase Underground-Type Transformers (C57.12.24) – Giuseppe Termini,

Chairman The chairman welcomed members and guests to the meeting which was called to order at 9:30AM in the Bodensee I room of the Dolce Munich Hotel in Munich, Germany on March 18, 2013. George Payerle acted as recording secretary. Introductions were made and an agenda presented. The meeting was attended by 8 members and 3 guests. There was a quorum present at this meeting with 8 out of 15 members present. The minutes from the last meeting in Milwaukee were reviewed. Brian Klaponski moved to accept the minutes as submitted, Alan Traut seconded the motion and the minutes were approved. Bob Kinner requested membership. It was noted that Bob Kinner’s presentation on corrosion consideration for submersible transformer designs from the previous meeting was not posted on the Transformers Committee website. The Chair will resubmit the corrosion presentation to the webmaster to be posted on the Transformers Committee website. He will also send the presentation to members and guests on a separate email. The Chair indicated that input from participants who volunteered at the last meeting to address the topics discussed at the last meeting in Milwaukee were not received for various reasons. The Chair will follow up with those individuals to gain their input. There was a discussion about cathodic protection. Adam Bromley mentioned that in their standard the entire tank needs to be the same grade of material in order to avoid the potential for corrosion. Adam also stated that when tank body and cover contain different material grades, one part of the tank becomes the ‘sacrificial’ anode. Brian Klaponski mentioned that paint finish should be considered as a way to protect the tank from corrosion. He suggested

that the standard should allow for different options in order to avoid or prevent tank corrosion including paint. He also suggested that there should be a task force within the WG to address cathodic protection.

Jack Harley suggested that the WG should solicit input from the pipeline industry in regard to the use of and application of cathodic protection. Brian Klaponski also suggested contacting Seattle City Light as well. The Chair stated that he will enlist the support and help of various individuals within the WG such as: Adam Bromley, Bob Kinner, Said, Hachichi, Dan Mulkey, Cory Morgan, Chris Sullivan and Bill Wimmer to start drafting the requirements for loadbreak switch, tank material, fuses, pressure relief valve and cathodic protection into the next standard revision. The Chair will also contact Seattle City Light and transformer manufacturers to gain their input. The inclusion of a requirement in the standard for protective covers for bushings was also discussed. Brian Klaponski suggested that the standard should simply state that protective covers must be UV resistant. A discussion followed on the application of PRV for submersible applications. Chris Sullivan stated that manufacturers of PRVs cannot fully guarantee that PRV devices will reseal without letting in either water or other contaminates present in a manhole. The use of manual pressure relief valves was discussed. Al Traut mentioned that the standard for single phase submersible transformers includes requirements for a manual pressure relief fitting and/or automatic pressure relief valve. The pressure relief fitting allows for the slow release of pressure without completely removing the fitting. Al Traut stated that he will provide those requirements to the Chair. He also volunteered to bring a sample of a manual pressure relief fitting at the next meeting. The need to operate the pressure relief fitting with a hotstick tool from outside the manholes was also discussed. Brian Klaponski noted that there is a disparity between the life of the standard of 10 years and the life of the PAR of 4 years and perhaps an extension to the PAR should be submitted. The Chair stated that when a draft of this standard is submitted for review at the next meeting, a decision will be made then on whether or not a PAR extension will be required. The meeting was adjourned at 11:00 am. The next meeting will be on October 2013 in St Louis. 11.3.3 Liquid Filled Secondary Network Transformers (C57.12.40)–Brian Klaponski, Chair

1) The WG met on Monday, March 18, 2015 at 11:15 am with 4 members and 5 guests. 2) The minutes of the October 22, 2012 meeting in Milwaukee, WI, were reviewed. Larry Dix

made a motion to approve the Meeting Minutes and Jeremy Sewell seconded the motion and they were approved subject that there was no quorum.

3) One guest (George Payerle) requested membership.

4) The meeting consisted of the discussion of proposed changes made by Larry Dix for consideration and inclusion in the next standard revision:

a. Table 2 – Change existing table and correct the dielectric test values to agree with

historical values that have existed for over 30 years.

b. Section 6.2.2.4 – Change: “VVVVV.minimum of 5000amperes rms symmetrical passes throughVVV.” to: “minimum of 15000amperes rms symmetrical passes throughVVV..” . This change will require further discussion.

c. Table 8 – rms, in lower cases, is missing from the header of the third column “Cable test (kV) ac 5 minutes”. This header should read: “Cable test (kV) ac rms 5 minutes”

d. Table 9 – drop the word “minimum” from the header of the third column: “Minimum dropout voltage” and add: “or less” next to numeric values. This column should read: “

Dropout voltage

15 or less

33 or less

Larry Dix will discuss the proposed change at the next ENSC meeting to gain user input.

e. In consideration of the suggested change to Section 6.2.2.4, a recommendation was made to use as a minimum 600 amps bushings and wells instead of 200 amps as 200 amp wells are not adequate for 15000 amp 5 sec fault levels.

5) The Chair stated that there should be coordination between the C57.12.24 and this

standard in regard to tank corrosion requirements discussed at the previous working group meeting for the C57.12.24 standard.

6) The meeting was adjourned at 12:00 pm with the next meeting set for St. Louis, Missouri in

October 2013.

i. Secondary Network Protectors (C57.12.44) – Bill Wimmer, Chairman, Mark Faulkner, Secretary The WG did not meet.

ii. Ventilated Dry-Type Network Transformers (C57.12.57) This standard has been withdrawn by IEEE.

New Business

Larry Dix made a motion to have the Underground Transformers and Network Protectors Subcommittee request a response from the Main Transformers Committee to a motion made by Larry Dix as documented in the New Business Section of the Meeting Minutes submitted by the Underground Transformers and Network Protectors Subcommittee to the Main Committee on October 25, 2012 (Ref. Section 11.3). Adam Bromley seconded the motion. A vote was taken and the motion was approved with no objections.

Old Business

None

Adjournment/Next Meeting

The meeting was adjourned at 12:15 PM with the next meeting set for St. Louis, Missouri.

11.4 BUSHINGS SC – PETER ZHAO, CHAIR; ERIC WEATHERBEE, SECRETARY

11.4.1 Introduction / Attendance Temporarily filling-in as Bushing SC Chair, JD Brafa, Vice-Chair of PC57.19.04, opened the meeting at 9:30 AM and welcomed the members and guests. Mr. Zhao and Mr. Weatherbee were unable to make the international trip for this meeting. There were 68 attendees of whom 17 were members, 32 were repeat guests, and 19 were new guests. A quorum was not reached. In hopes that a quorum was reached as late attendees continued to filter in, a provisional motion to approve the minutes from the Milwaukee meeting was made and seconded, but after review of the attendance roster following the meeting it was clear no quorum was reached. The minutes from both Milwaukee (F12) and Munich (S13) will be approved electronically before St. Louis (F13).

11.4.2 Chairman’s Remarks a) A reminder to the SC that a draft of the meeting agenda is sent to all TF and WG chairs

prior to its final released version, there is usually a week window given to reply with any necessary schedule or meeting changes. If you do not reply during the one (1) week window and your WG/TF is slated to meet in the final release of the agenda, you are responsible for making sure that meeting takes place, even if you cannot attend.

b) The Administrative SC wishes to encourage all attendees to not only become both members of IEEE-PES and SA, but also make sure members know there is a ‘senior member’ classification level which can be achieved. To learn more about this member category and how to become one, please visit the following link: http://www.ieee.org/membership_services/membership/senior/index.html

11.4.3 Working Group (WG) and Task Force (TF) Reports 11.4.3.1 C57.19.100 – T. Spitzer, Chair T. Spitzer was not present at the Munich meeting, but notification was given to the SC that the 2012 version of this standard has been published and is currently available on the IEEE website. A complementary version of the document was sent to all members on Feb. 27, 2013. Next revision is due by end of 2022.

11.4.3.2 C57.19.01 – Art Del Rio, Chair; Vice-Chair and Secretary - vacant See complete minutes in Appendix A of this report.

11.4.3.3 C57.19.00 – Keith Ellis, Chair No meeting held. K. Ellis was not able to attend this meeting, but has previously requested to step down as chair. Request for volunteers to replace K. Ellis was made during the Bushing SC meeting, but there were no volunteers. Next revision is due by end of 2020.

11.4.3.4 PC57.19.04 – Carlo Arpino, Chair; JD Brafa, Vice-Chair; Secretary - vacant See complete minutes in Appendix B of this report.

11.4.3.5 IEC / IEEE 65700.19.03 – Les Recksiedler (IEEE) and John Graham (IEC), Chair No meeting was held. SC36A MT5 is working with IEEE Bushings SC on this dual logo standard. It has been agreed IEC terminology will take precedence. Circulation in IEC was made in January 2013 and resolution has been reached on all comments. CDV is to be issued shortly for balloting/voting. Immediately following IEC balloting it must go to IEEE for circulation and balloting for approval. Emphasis was placed on the importance that

immediately following approval by IEC, IEEE must be ready to circulate and ballot if there is to be any chance of meeting the Oct. 21, 2013 deadline for submittal. This PAR expires on Oct. 21, 2013. If it appears submission to IEEE is not possible by Oct. 21, a PAR extension must be filed to avoid expiration.

11.4.4 IEC Bushing Standards Activity - John Graham, IEEE Liaison a) IEC SC36A Bushings Committee – Next meeting October 2013 60137 Insulated Bushings for AC voltages >1000V – Draft circulated in Oct. 2012 which

includes previously resolved comments. Limited work is proceeding, but three (3) TF have been formed to review dielectrics, mechanical, and thermal requirements.

61463 Seismic Qualification of Bushings – A new maintenance team, MT6, formed and had their first meeting in Oct. 2012. They are reviewing IEEE 693 to strengthen 61463. There is no talk of requesting IEEE 693 to become a dual logo document. Expect to have CDV by end of 1Q-2013.

61464 DGA of OIP Bushings – No work planned until TC10 completes revision of 60599. SC36A committee will be responsible for interpretation of analysis with TC1 responsible for the methods.

61639 Bushings for Direct Connection Transformers/GIS – is currently under review by SC17C MT27 switchgear committee. SC36A has issued several comments which will be incorporated in the next draft.

b) Cigré A2:43 Bushings Reliability, Antun Mikulecky, Chair March 20 meeting held in Memphis, TN had just five (5) attendees. The group has three (3) TF:

1. Questionnaire on bushing failure rates and data – completed for circulation 2. Draft of technical brochure section – definitions, failure modes and mechanisms 3. Draft of technical brochure section – diagnostics and monitoring methods, theory,

measurement method, and decision criteria Goal is for publication by EOY

11.4.5 IEEE 693 – Eric Weatherbee, IEEE Liaison

Bushings TF of this Seismic Guide will meet next: April 16-17, 2013 – Oakland, CA Oakland Marriott City Center, 1001 Broadway, Oakland, CA 94607

11.4.6 Task Force on PD Measurement on Bushings & CTs - Thang Hochanh, Chair

See complete minutes in Appendix C of this report 11.4.7 Unfinished Business

a) Keith Ellis proposed that a definition needs to be added to C57.19.00 for solid dielectric bushings, RIP already exists therefore he would like to develop new nomenclature for epoxy resin impregnated paper bushings. Keith was not present at the Munich meeting and no update was provided prior to the meeting. This topic will be address in St. Louis (F13).

b) Steve Shull and Paul Buchanan have proposed to create a TF devoted to dimensional and performance requirements for distribution transformers 95kV BIL and less. It is currently unclear whether the best path to accomplish this is to add lower voltage ratings to current revision of C57.19.01 or whether the performance characteristics for these smaller bushings differ sufficiently enough to warrant the creation of a new standard. Communication among those involved will continue as the Bushings SC chair works toward a resolution to this proposition.

c) A proposition and presentation was made by John Graham for a new dimensional and performance standard for oil-to-SF6 bushings at the Milwaukee WI meeting in F12. The presentation was well received, but no decision has been made by the Bushings SC to move forward with it’s creation.

11.4.8 New Business Mr. Egon Kirchemayer presented new business asking for special testing for bushings which are intended for use in reactors. The origin of this request is from an actual bushing failure during transformer type testing which resulted in a serious delay in production schedule for the transformer. The summary of his request is to include in the IEEE bushings application guide an additional test requirement to apply rated current while also performing 1.5X L-G withstand with PD measurements concurrent. Normally this not done until the bushing reaches the transformer OEM, but his proposition, to avoid such a interuption in the transformer production schedule, is this test should be done by the bushing manufacturer prior to shipment by requirement of the IEEE standards. 11.4.9 Adjournment Minutes submitted respectively by, JD Brafa, acting Secretary in the place of Eric Weatherbee Bushing Subcommittee

APPENDIX A WG Revision C57.19.01 Standard Requirements for Bushings MINUTES OF WORKING GROUP MEETING – S13 Munich, Germany The working group met on Tuesday March 19, 2013, at 9:30 am with a total of 39 participants. Of those, 12 members and 27 guests with 3 guests requesting and granted membership. Working Group membership is 26 Members therefore quorum was not met.

� The meeting was opened with introductions and a request for comments on the unapproved minutes from Fall 2012 meeting. There were no comments and approval for the minutes will be done electronically.

� The scope of the standard was reviewed, no changes from the previous meeting.

� Sections 6.1 and 6.3 of the C57.12.00-2010 (General Requirements for Power Transformers) standard regarding the effect of the bushing dimensions on the bushing openings were reviewed. Such sections state that the opening on the tank shall accommodate the maximum ‘P’ gasket space and also the CT inside diameter shall accommodate the maximum ‘D’ bushing dimension.

� Old business:

• The Working Group is using Central Desktop for communications. WG Members not yet signed up for the tool were encouraged to join and participate in the discussions.

• Definition for epoxy-resin impregnated paper (ERIP) bushings: item closed. There will be no changes to the definition for RIP bushings in the C57.19.00 standard.

• Clarification on the definition for solid type bushing and cast insulation bushing is pending: referred to C57.19.00.

• For 5000 amp bushing to 230 kV: Chair needs information and dimensions from members.

� As part of the agenda, the WG reviewed the results from the recent survey on the C57.19.01-2000 revision, “how did it affect your company?” followed by discussions.

� At the end of the discussions, a show of hands was requested looking for direction on the re-inclusion of the full line of system voltages. Based on the response, it was decided that the group would tentatively work toward such objective (pending WG majority approval).

� New business:

• The WG will survey the working group on the re-inclusion of voltage classes that were removed in the 2000 revision.

• Tentative changes to the table 1 were presented, including ‘PREFERRED’ voltage classes as in the 2000 revision and a ‘SUPPLEMENTARY’ table with the remaining voltage classes.

• Proposed PFW of 460 kV and 950 kV FW impulse levels for 230 kV voltage class bushings were presented, more in line with IEC and CSA bushing standards.

• Tables will be posted in the Central Desktop workspace for comments.

� Meeting was adjourned at 10:30 am. Minutes by: Arturo Del Rio, WG Chair. e-mail: [email protected]

APPENDIX B Minutes: WG PC57.19.04 – LV Bushings Rated >5000A and Applied in Metal Enclosures Date: March 19, 2013 @ 1:45pm – Munich, DE 1. Attendance:

• 30 Attendees: • 13 of 28 Members were present (<50%). A quorum was not reached. • 17 Guests: 11 new, 6 repeat

2. Summary: • Guest, Vinay Mehrotra asked why we limited to ratings >5000A. The explanation was

made that the reason for limiting to >5000A is just to take a smaller bite in the initial creation of this standard. >5000A also makes sense, in that most bushings applied in bus are >5000A. It is recognized that there are some lower current classes of bushings which carry currents of less than 5000A, but that is not what this WG chose to focus their efforts on.

• Confirmation was made with Wes Knuth that he would plan to identify a bus manufacturer willing to come in to discuss thermal considerations and short circuit strength of metal enclosed bus built to IEEE C37.23 standard

• Although the following topics will be addressed more definitively at a later point in the process of this standard, discussion was made on the performance of bushings described in this standard, including: o Bushing Hot spot limits (130°C > Limit > 105°C) o Inability of standard kraft cellulose insulating material to withstand temperatures

>105°C without loss of life, and the subsequent need to generally classify a name for high temperature condenser insulation material capable of withstanding such hot spot temperatures in this standard.

o CT pocket (focus of this WG is to standardize on one option, with other options, if necessary, added in a future revision

• Discussion was made on the topic of whether or not the %PF and capacitance tables from C57.19.01 be simply referenced in this standard or a separate table created for this standard. The consensus was this table would be referenced in C57.19.01, but a new type of bushing description should be created for bushings which are oil filled and built with thermally upgraded condenser materials which can withstand the usual service conditions of bushings applied in metal enclosed bus.

• Request was made for a Secretary to fill in the empty position in this WG. 3. Adjournment: Meeting was adjourned at 2:37p. Minutes by: JD Brafa, Vice Chair Approved by: Carlo Arpino, Chair

APPENDIX C PARTIAL DISCHARGE IN BUSHINGS AND PTs/CTs MINUTES OF TASK FORCE MEETING – S13 Munich, Germany. The task force on Partial Discharge in Bushings and PTs/CTs met on Tuesday March 19th, 2013, at 11:00am with 43 participants. Of those, 19 members and 24 guests. Next meeting in St Louis will be the first meeting as C57.160 Working Group.

� The meeting was opened with attendance sheets and introductions.

� The minutes for the F12 Milwaukee meeting were presented and approved.

� Bertrand Poulin announced to the group that the PAR was approved and the task force has been granted WG status as project C57.160.

� A concern about the format of the document draft #3 was expressed since there may be duplication of work and sections as the sub-groups have been working independently.

� Significant editorial work is expected in order to add adequate structure to the document.

� The TF Chair requested revisions on the version #3 of the guide which was distributed by e-mail prior to the meeting and a number of printed copies were distributed for such effect. 3 discussion groups were formed for focused discussions on:

• PD in Instruments Transformers, led by Vladimir Khalin.

• PD in Bushings, led by John Graham.

• Generalities and Definitions, led by Wolfang Hauschild.

� After the discussions, each group presented a summary of comments and suggestions from their discussion that will be considered in the next draft. Follow up by the group leaders with comments on the discussed draft #3.

What was said during the closing summary and remarks: PD in Instruments Transformers, led by Vladimir Khalin.

• Need to identify common clauses in aspects such as calibration and background noise. • Put pictures within text or separate?

Generalities and Definitions, led by Wolfang Hauschild. • Definitions should be fully in line with existing IEC57113 standards on PD

measurements for transformers. Compare later again. • Frequency response: wide band 500 kHz limit new IEC <1000 kHz, bandwidth 900 kHz. • Text needs re-editing

PD in Bushings, led by John Graham. • Section 6. Discussion on details of tests arrangements. • What is critical for PD test in bushings and why. Is this covered in other documents? • Different test circuits: influence of different capacitances and the selection of grounded

or ungrounded specimen test. Hi and low capacitance. • Comments on bushings with both test tap and voltage tap. How to use them safely. • LV bushings with no C2. How to test C1? • Interpretation and discharge patterns, typical displays for diagnosis and defects. • Test procedure: DC test, repeats C57.19.03 may be taken out? • High C2 capacitance, some bushings up to 20 nF. • Meeting was adjourned at 12:15 pm.

Minutes by: Arturo Del Rio. Nashville, March 19, 2013.

11.5 DRY TYPE TRANSFORMERS SC – CHARLES JOHNSON Acting Chair Casey Ballard

Acting Secretary Tim Holdway

11.5.1 Introductions and Approval of Minutes

The Subcommittee met on March 20, 2013 at 1:30 PM. There were 8 of 29 members

present (therefore we did not have a quorum) and 9 guests present, 5 guests requesting

membership. The minutes of the Milwaukee, WI meeting could not be approved.

11.5.2 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:

11.5.2.1 IEEE PC57.12.01 - Dry Type General Requirements Chair Tim Holdway

The working group met in the Bodensee II Room of the Dolce Munich Unterschleissheim Hotel.

The meeting was called to order at 1:46 PM by Chairman Tim Holdway

The meeting was convened with 14 members (out of 25 – therefore a quorum was reached

with 56% attending) and 7guests present with 0 requesting membership.

The minutes of the Milwaukee October 22, 2012 meeting were approved unanimously.

Motion: Carl Bush

Second: Dhiru Patel

Old business

- Proposed Changes by Sasha Levin for Section 5 were approved by the WG via email voting

and were incorporated into the Draft 1 version of the standard

- Proposed Change to add a QC impulse test was made by Phil Hopkinson in Milwaukee and

the email voting ended in a tie of 12 voting for inclusion, 12 voting against, and 1 abstention.

This topic will be discussed under the next PAR in order to get the standard to ballot.

- Altitude correction – The chair spoke to Don Kline, as an action item from Milwaukee, about

the history of the values in Table 1, but Don did not know where they originated.

o Casey Ballard proposed that a note be added to reference IEEE Std 4 for all non-

insulated conductors as the values in Table 1 were not sufficient for air clearance

alone. However, no formal motion was made.

New business

- The chair announced to the group that the current PAR had been extended from December

2013 to December 2015.

- Rick Marek made a motion to recommend to the Dry Type Sub Committee that C57.12.01

be maintained in a continuous fashion with a 3-year duration per cycle. Sanjib Som

seconded the motion and it carried with no objections. The chair will bring up this topic in

the Dry Type SC meeting for further discussion.

- Phil Hopkinson had sent out a motion to change the partial discharge procedure and testing

values. The chair stated that since this motion was made late in the process of getting this

revision to ballot that we would table it for now and revisit during the next PAR.

- Draft 1 was reviewed and the chair pointed out all of the changes made from the 2005

version. In addition the following topics/actions took place:

o Currently the positive wave impulse requirement is only a note in Table 5. Carl Bush

asked if it should be located in 5.10.3.4 Impulse tests. The chair agreed if it was

challenged in the balloting process that 5.10.3.4 was the proper location for this

requirement.

o Casey Ballard suggested that a table be added to 5.10.3.5 Partial Discharge that

displays the % voltage and duration on a graphical representation. He will supply his

proposal to the chair for review and incorporation into the next draft.

o Vijay Tendulkar asked why Table 9 didn’t include 240ºC as an insulation system.

Roger Wicks, WG Chair of C57.12.60, mentioned that the thermal aging guide did

not include 240ºC either. The chair decided to delay this discussion into the next

PAR for 12.01.

o Sanjib Som proposed that a 110% NL heat run for 24 hours be added as an ‘other’

test to Table 16. There was discussion on why such a test was required and Vijay

Tendulkar said that it could be used to detect changes in losses and sound levels in

cores resulting from manufacturing issues. Carl Bush added that such a test

requirement would need to be added to C57.12.91 before it should be referenced in

C57.12.01. The chair agreed and will add it to the discussion for the next PAR for

C57.12.01.

o Roger Wicks and Rick Marek brought up several IEEE style errors in Draft 1 and

encourage the chair to review the IEEE Style Manual and offered assistance, if

needed.

� One such style issue was the insertion of Table 5

� Another was on Annex B which included the following required changes

• Indicate that Annex B is ‘informative’

• Move Annex B so that it starts on a new page

Next meeting: Fall 2013, St Louis, Missouri, USA, October 20-24.

With no further business, the meeting was adjourned at 2:58 PM.

Motion: John K. John

Second: Jim McBryde

Chairman: Tim Holdway

Secretary: Casey Ballard

11.5.2.2 WG Dry Type O&M Guide C57.94 Meeting Chair Sanjib Som The working group met in the Bodensee I Room of the Dolce Munich Unterschleissheim Hotel.

The meeting was called to order at 9:30 AM by Vice-Chair Sanjib Som, substituting for

Chairman Dave Stankes.

The meeting was convened with 5 members (not enough for a quorum) and 3 guests present

with 0 requesting membership.

The minutes of the Milwaukee meeting could not be approved due to not having a quorum.

Document Review

- The group knew that we could not make any changes but decided to go thru the document and make suggestions on a few topics that were on the agenda.

- Section 6.2.1 and 6.2.2 had no headers. It was suggested to remove them and just put the paragraphs under 6.2.

- A suggestion was made to discuss 6.2.1 and whether we should have 501 KVA and above for the resistance winding tests.

- There was a discussion on the use of SFRA testing as either a trending test or a pre-service test. Jill Duplessis said she would do a write up on the use of SFRA site testing.

- There was a discussion of adding a field exciting current test, although it is not in C57.12.91; again Jill stated that she will provide the method since this is different from what is done in factory.

- Take out 4.7.1 - Take out 4.8.1, 4.8.2, and 4.8.3 headers - Take out 4.9.1, 4.9.2, and 4.9.3 headers - Title 4.10.1 as “Unusual Conditions” - Title 4.10.2 as “Insulation Temperature Class” - Take 5.1.1.1 and 5.1.1.2 and put both under the title of “General” - Take 5.1.1.3 and make 5.1.1.2 and title “Ventilated” - Take 5.1.1.4 and make 5.1.1.3 and title “Non-ventilated” - Title 5.1.2.1 as “General” - Take out 5.1.2.2 and 5.1.2.3 headers - Change 5.1.2.4 to 5.1.2.2 and title “Sealed” - Title 6.2.1 as “Recommended pre-service tests” - Title 6.2.2 as “Optional pre-service tests” - Jill D. suggested we take Insulation power factor test from 6.2.2 to 6.2.1 - Take out 7.3.1, 7.3.2, and 7.3.3 headers - Take out 8.3.6.1 and 8.6.2 headers Roger Wicks pointed out that some of the tests should also include the transformer KVA and

KV to which they would be applicable; for example tests applicable to 1500kVA may not be

applicable to 15kVA dry type.

There was no more discussion of changes to the document, no new business and the meeting

ended at the scheduled time 10:45AM.

Next meeting: Fall 2013, St Louis, Missouri, USA, October 20-24.

Meeting Chair: Sanjib Som Meeting Secretary: Tim Holdway

11.5.2.3 WG Dry Type Loading Guide C57.96 Chair Rick Marek

The working group met in the Bodensee I Room of the Dolce Munich Unterschleissheim Hotel and the meeting was called to order at 1:46 PM by Chairman Rick Marek. The meeting was convened with 10 members (out of 25 – therefore a quorum was not reached with 40% attending) and 2 guests present.

The minutes of the Milwaukee October 23, 2012 meeting were not approved due to lack of

quorum and will be sent to the members via email for approval by the chair.

Old business

- Draft 6 comments included the following:

o Equation 17 will be changed to reference Table 4 instead of Table 5

o Change time format in Table 1 and Table 2 from 24:00 to 0:00

o Add definition of maximum ambient of 40ºC in Section C.1.2 in support of equation in

C.1.3

o Add definition of maximum ambient of 40ºC in Section C.2.2 in support of equation in

C.2.3

o Table 5 will be modified to show an example for 150ºC insulation system for resin

encapsulated windings while removing 200ºC example

New business

- The chair announced to the group that he would submit a Draft 7 to the WG to vote on

submitting the draft for ballot

- The chair asked for volunteers to review the document for copy/paste errors. The chair will

send out emails to all volunteers the week of March 25 and requested the reviews to be

completed and submitted by April 15. The volunteers were:

o Tim Holdway

o Vijay Tendulkar

o John K. John

o Sanjib Som

o Casey Ballard

- Casey Ballard raised the concern that the definitions for resin encapsulated and vacuum

cast may be applied differently in the Dry Type SC standards – specifically in C57.96 and

C57.12.01. He will bring up this concern to the Dry Type Sub Committee for discussion.

With no further business, the meeting was adjourned at 4:06 PM.

Chairman: Rick Marek

Meeting Secretary: Casey Ballard

11.5.3 Old Business

There was no old business.

11.5.4 New Business

Notes from the AdCom meeting

- If anyone has been a member of the main committee, they should look to become Senior member

- Next meeting in St. Louis, October 20-24 - Spring 2014 meeting will be in Savannah, GA

Core agenda vote of C57.12.60

- 87% response - 98% affirmative with 1 negative vote concerning an upper limit on a test - The chair is taking the approach that there is not a good solution for the question and will

say that the way it is written is ok.

C57.12.55

- At this time it is not an active IEEE document - This was a NEMA document concerning enclosures - C57.12.01 references this document - Vijay Tendulkar brought up and recommended to open up this document and have the

Dry-Type group work on it. After much discussion, the chair asked the question to the group if the document should be opened up in IEEE. 5 voted yes, 0 voted no and 11 abstained

- The chair proposed an adhoc group review and present to the Sub Committee whether we should open the document. This group consists of Casey Ballard, Vijay Tendulkar, Sanjib Som, and Kerwin Stretch.

C57.12.91

- The past chair, Derek Foster is considering opening up this document for revision. Several topics were discussed that may need to be reviewed such as;

o No load loss correction calculations o Partial discharge testing method o QC impulse definition o Volunteers to have a conference call before the St. Louis meeting to determine

whether to open are Sanjib Som, Casey Ballard, Tim Holdway, Rick Marek, Kerwin Stretch, and Vijay Tendulkar.

The chair discussed standards that will be expiring in 2018. These are C57.12.51, C57.12.58,

and C57.16. The chair stated volunteers will be needed to take on these standards.

There was a motion to make C57.12.01 and C57.12.91 continuous documents on a 3 year

cycle. A vote was taken with 11 yes to 0 no.

There was a discussion on the definition of resin encapsulated transformers and did they

include open wound. Again, a vote was taken with 12 yes and 0 no.

Roger Wicks wanted the Sub Committee to be aware of a Task Force on a Guide concerning

moisture in liquid filled and dry-type transformers. It is a TF now but will be a WG in St. Louis.

A suggestion was made to talk with Greg Anderson and see if we can make sure that the Dry-

Type meetings do not conflict.

11.5.5 Adjournment

Being no further business, the meeting adjourned at 2:30 PM

11.6 DISTRIBUTION TRANSFORMERS SC – STEVE SHULL

Meeting Date: 03/20/2013 Time: 9:30 – 10:45

Attendance:

Members 20

Guests 33

Guests Requesting Membership 2 Total 53

Meeting Minutes / Significant Issues / Comments:

Steve opened the meeting and rosters were passed out. The members were listed on screen and by a show of hands, it was discovered that we did not have a quorum with only 20 of the 51 members in attendance. Each of the working groups that met reported as follows.

• C57.12.36 –Distribution Substation Transformers

Jerry Murphy called the meeting to order. Introductions were made. The names of the members were projected on the screen. By a show of hands the quorum was not reached because there were 6 out of the 21 members present at the time.

The minutes of the fall meeting in Milwaukee could not be voted to be approved, and were tabled for the meeting in St. Louis.

Draft 3 of the standard was reviewed. Section 5.11.2 on fan motor voltage and frequency was discussed. Gary Hoffman provided the wording as was defined in C57.12.10. Gary mentioned that this was added to the 12.10 standard as a response to a comment during the balloting process. A comment was made to delete the term single phase for the 50 Hz motor definitions.

There were several comments on the people in attendance of whether the requirements for 50 Hz motors should be included in the standard, questioning if 50 Hz was part of its scope. Gary mentioned that the new rule was that as long as the scope of the document developed was within the scope of the PAR, it was acceptable.

Next was presented the new wording for the sudden pressure relay, which was adopted from the corrigenda of the C57.12.10 standard, and Gary Hoffman said that the new definition had been reviewed in detail in that WG and it was found to be correct.

Jerry mentioned that a draft with the changes from this meeting would be posted soon after the meeting, and encouraged the group to review it and provide comments.

The meeting was adjourned at 10:05 AM

• C57.12.20 – Overhead Distribution Transformers

The introductions of members and guests were done. Al Traut provided the Chair’s Report. The current PAR expires December 31, 2016. The 10-year cycle ends December 31, 2021.

Al Traut reported that he is representing the C57.12.20 Working Group (WG) on a new Task Force whose focus is on common language amongst the various product standards. The group is currently discussing the replacement of “mineral-oil-immersed” with “liquid-immersed”. Al will provide an update on this topic at the next meeting of the WG. The use of “oil” and “insulating oil” in the current standard was questioned. Al advised that the WG on common language will include this in their future discussions.

A quorum of the members was not present (only 11 out of 35 members were present).

The minutes of the fall 2012 Milwaukee meeting were discussed but could not be approved due to a quorum not being present. No issues were noted.

The first discussion of Old Business included a recommendation that Appendix A be kept, as is, in the C57.12.20 standard due to some Utilities still using these auxiliary mounting devices.

Next, Al Traut provided the following language for the WG to consider on the temperature requirements for gaskets.

“All gaskets shall be specified for use over a temperature range of -20oC to 120oC. Gaskets in contact with current carrying components shall withstand the maximum temperature achieved when loaded within the limits specified in IEEE Std C57.91.”

Chuck Simmons will incorporate this language into the next draft revision. The WG discussed requirements necessary for liquids other than mineral oil. Gael Kennedy proposed that a statement be included in the standard requiring any gaskets used to be compatible with the liquid being specified. This language will also be added to the next draft revision.

The addition of impedance and/or regulation requirements was discussed next. A recent survey indicated that Users have two primary concerns; a) providing minimum impedance values such that fault current is limited to prescribed levels, and b) providing maximum impedance values directed towards setting regulation limits due to concerns with flicker, motor starting and other similar issues. The WG agreed that, if approved, a table of impedance values will be needed in the standard with impedance based on the rated voltage. Further discussion was directed at only providing minimum impedance values. Gael Kennedy and Al Traut volunteered to put together a table of impedance values that the WG can discuss at the next meeting.

The group discussed information previously provided by Josh Verdell and Marty Rave on low voltage bushing mounting and stud dimensions. Paul Buchanan and Al Traut volunteered to coordinate information on bushing requirements and present at the next WG meeting.

The WG discussed a concern that Al Traut received regarding the lack of transformer base requirements for overhead type transformers mounted on platforms. The WG decided that information from Users on if, and how, they mount transformers on platforms is needed prior to any future discussions. Chuck Simmons will send a survey to members of the Distribution Subcommittee on platform mounting of transformers and report back to the WG at the next meeting.

H1A

H2A

H3A

H1B

H2B

H3BH0

H1A

H2A

H3A

H1B

H2B

H3B

H0

• C57.15/IEC 60076-21 - Step-Voltage Regulators

Craig stated that the current IEEE C57.15-2009 and IEC 60076-21(2011) International Standards - Power Transformers - Part 21: Standard Requirements, Terminology, and Test code for Step-Voltage Regulators is available to industry. Therefore, this was the first meeting to review this document and thus he asked those present to as for membership if they would like to be a member of the TF.

Craig presented the background of the work completed on the published versions. The group looked at some of the technical comments from IEEE and IEC received during the approval of the last documents which are to be addressed for the upcoming revision.

Others areas to be considered for the next revision:

Cold start temperature for tap changer

Sound levels and corresponding design test.

Latest published versions of IEEE C57.12.00 and C57.12.90

Latest published versions of IEC 60076-1, 2, 3, 4, 5, 7 and 10.

Look at inclusion of references from the NETA documents. Gail Kennedy will review and define sections to which he would provide back to Craig.

Incorporate latest IEC standards for Control tests.

Inclusion of a tap changer design test section

Craig discussed the need for a dual logo document on Load Tap Changers, which would the combination of IEC 60214-1 and IEEE C57.131. Craig Colopy, Axel Kramer, and Bill Henning were to introduce this idea to the Power Transformer SC for review and search their support on this issue.

• C57.12.34 – Three Phase Pad-mount Transformers

Steve Shull called the meeting to order. To establish a quorum, the member 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 not established. Steve asked that everyone introduce themselves. Also, an attendance roster was circulated.

Jeff Schneider shared a presentation from the TF formed last meeting on the locations of the H0 bushing when a dead front primary is specified. This was to follow up on the TF charge last to study where the location of this bushing should be placed on the faceplate of the transformer. It was pointed out that 8.7.4.2 and 8.7.4.1 discusses these locations in light of the generic term “Neutral Bushing”. The group discussed the location with respect to the presentation. After some discussion, a few possible locations were suggested. These are summarized in the following diagrams.

Some discussion time was spent on placing the grounding point on the interior tank wall with a hand hole to allow an access the connection point so that it could be disconnected for testing. Brian Klaponski mentioned that this could impose an impedance between the Y common point and ground thus raising the potential between these points. There was some discussion on this issue but no conclusions were reached. Carlos Gaytan suggested that we move the bushing to the secondary side of the unit and utilize the existing location of the X0 / H0X0. At this point, Steve Shull displayed Figure 7 and Figure 8A of the current standard. A number of users commented that the location for the H0/X0 shown in Figure 8A might be a good location for the H0 since they would have concerns with operating personnel working around an open ground while removing elbows considering the control of these in respect to this bushing’s location. Chuck Simmons stated that in some of the transformers his company purchases, they require an H0 and an X0. This is required because of the load applications where the bonding between the X0 and ground pad is removed. There was some discussion if this was allowed within the NEC. This led to a discussion concerning the size of the ground pad and it location and neutral/ground bonding.

In conclusion, the working group came to no final recommendation on this item with all feeling it needed to be discussed further. This concluded the meeting.

• C57.12.39 TF Tank Pressure Coordination

Carlos called the meeting to order at 1:45 PM. Introductions were made. The names of the members were projected on the screen. By a show of hands it was determined that a quorum was not reached because only 11 of the 31 members were present at the time.

The minutes of the fall meeting in Milwaukee could not be voted to be approved, and were tabled to be reviewed for the meeting in St. Louis.

Draft 2 of the project standard was reviewed, with comments as follows:

There was discussion on how to coordinate the upper limit for tank pressure with the self-venting cover design, which is included in the draft.

A question was raised about including requirements for tank integrity under vacuum. Carlos mentioned that on the review of the current standards, there was only a requirement in C57.12.10 that addressed vacuum in the tank. There were several comments about significant tank and cover wall deflection due to negative pressures of up to -5 psig. This raised concerns that an accumulation of water could enter the unit as well a possible compromise of the electrical distances between components. It was suggested that requirements for vacuum should be set to limit the tank wall deflection. Carlos mentioned that this subject of maximum vacuum allowed would be reviewed and would be considered in the inclusion of the body of the document.

Several comments were made about the use of Pressure Relief Device (PRD). It was mentioned that PRDs are not exclusively cover mounted, and some designs are mounted on the sidewall. It was suggested that a note should be added that indicates the use of PRD’s on pad mounted transformers must still meet all other requirements of that standard. (I.e. tamper proof, venting flow directions)

Regarding the coordination of requirements between the Pressure Relief Device (PRV), and the PRD and associated pressure-vacuum bleeder valve, it was recommended the wording be modified in 4.2.2.2.2 of the document to add “In addition to the cover-mounted pressure relief device, the tank shall also have a PRV or bleeder valve to

relieve the tank pressure manually”. A note was made that operating ranges and characteristics should be added for the bleeder valve.

It was suggested and the group agreed that the Sudden Pressure Relay section be moved into the Dynamic Pressure section.

Al Traut suggested that Section 9 of the C57.12.20 standard should be added to the C57.12.39 standard as a normative annex.

A comment was made about the definition of Dynamic Pressure, with a concern about the length of the fault cycle lasting longer than 2 cycles. Carlos mentioned the 2 cycles is referenced as it relates to the withstand test requirement. It was noted that a fault can last more than 2 cycles in practice. At the end, it was suggested that this section should be left as is currently presented.

Regarding the report of the TF for PRV and PRD definitions, Carlos mentioned that the results of the user survey on the current application and requirements for these devices would be presented in the next meeting in St. Louis.

No new business was raised, and the meeting was adjourned at 2:45 PM.

• C57.12.35 – Distribution Transformer Bar Coding

The WG met on Tuesday, March 19, 2013 at 9:30 am in the Ammersee I Room of the Dolce Munich Hotel in Munich, Germany.

An agenda was presented and introductions were made. There was not a quorum present at this meeting. The Meeting Minutes from the previous meeting in Milwaukee, WI were reviewed but not approved since there was no quorum.

The Vice-Chair informed the WG that the standard has been submitted for balloting and it is undergoing the mandatory editorial review. The open balloting invitation will close on March 21, 2013. No questions were asked.

The meeting was adjourned at 9:45 am.

• TF – Transformer Efficiency and Loss Evaluation (DOE)

The Task Force on DOE Energy Efficiency of Transformers was called to order at 1:45 PM on March 19, 2013. A hand count of the members was made and a quorum was declared. The chairman reviewed the minutes of the Fall 2012 meeting in Milwaukee and the minutes were approved. The chair recognized Al Traut as the acting secretary for this meeting.

The chair reported that the DOE has submitted a proposed Final Rule to the Office of Management and Budget (OMB) in November 2012. To date the OMB has not acted on the proposal. There is no known timeframe for OMB to complete their review.

The chair reviewed the slides that outline the results of the DOE process. The DOE issued a NOPR on Feb 10, 2012 (see 77FR7282). In this NOPR it recommended efficiency increases on medium voltage liquid immersed, medium voltage dry type, and low voltage dry type transformers. The last public meeting on the NOPR was held in June 2012. The details of the NOPR and the interpretation presented can be found on the IEEE Transformer Committee website. This content has not changed since the Fall 2012 meeting.

There were some comments that the OMB is meeting with select groups on a confidential basis to solicit input regarding the DOE proposed Final Rule. These groups

include representatives of utilities, eg, EEI; manufactures, eg, NEMA; and core steel producers. While details are not available it is a hopeful sign that the OMB is actively evaluating the proposed rule.

There was discussion around the energy efficiency standard activity in other countries, eg, Europe and Australia. In these cases there appears to be more interest on power transformers than distribution transformers. This work is not available to the public at this time.

The meeting was adjourned at 3:00 PM.

Old Business:

Steve asked if there was any old business to review and none was presented.

Chairman’s Comments: • Steve reviewed the membership requirements of TF/WG/SC of the Transformer

Committee. This is listed below.

� Membership is automatically granted to anyone requesting it at the first meeting of a new WG or TF.

� Thereafter, membership is granted after a prospective member attends two consecutive meetings as a guest AND actively participates in the work of the TF/WG/SC. A former member may be reinstated if the same criterion is met.

� Ongoing membership is maintained by consistent attendance at TF/WG/SC meetings, participation in internal TF/WG/SC surveys, or technical/editorial contribution to the TF/WG/SC’s document or work.

� Membership may be revoked if a member fails to attend two consecutive meetings or fails to respond to two consecutive surveys. The chair has discretion in not removing members who cannot attend but are still participating via survey responses and/or other written contributions.

� Another key point not mentioned is that each TF/WG/SC Chair (or Secretary) must keep regular logs of attendance and participation and update the roster after each meeting. This is done in our Transformer Committee AM system. This should be used to determine our Quorum requirement for TF/WG/SC meeting business.

� The main benefit of membership is the privilege of voting on TF/WG/SC issues.

New Business:

• Steve discussed the Bushings Sub-Committee is working on C57.19.02 to lower the application of the standard back down to 95 kV BIL (15 kV nominal operating). A new activity with the suggested title and scope was put forth as follows:

IEEE C57.19.02 Standard Performance Characteristics and Dimensions for Outdoor Distribution Apparatus Bushings

Suggested Scope:

This standard covers electrical, dimensional, and related requirements for outdoor power apparatus bushings that have basic impulse insulation levels (BILs) of less than 95kV. It provides specific values for dimensional and related requirements that are to be interpreted, measured, or tested in accordance with IEEE Std C57.19.00. Bushings covered by this standard are intended for use as components of oil-filled transformers.

The Bushings SC is looking for volunteers from the Distribution Transformers SC to meet with them and provide input for the inclusion of bushings at voltages lower than 95kV BIL for this proposed standard. Steve indicated that schedule coordination would be sought to allow members to attend this group without having a conflict with other DTSC meetings.

• Steve brought up the need to define the term “permanently attached” as including in two standards under the SC, C57.12.34, 9.8.1 and C57.12.38, 9.1. Steve will send an e-mail blast to the SC members for input.

• Steve presented on work being performed by ASTM similar to F2656-07 but for low-velocity impact barriers; meaning ≤5000 lbs at <40 mph. Steve will send an e-mail blast to the SC members for input about the need as it might relate to equipment protection. Using these comments he will pass on a combined comment back to the ASTM working group.

• Phil Hopkinson presented some interesting issues that were shared in the Wind Farm Transformer Working Group. He said that there were more findings on hydrogen gassing in these transformers and three-phase pad-mounts 35 kV and below. He discussed findings from the application of winding shields and how these seem to alleviate the static build up on the core and thus eliminate the Partial Discharge thus resulting in gassing.

Phil discussed the need to consider severe cold temperature applications where a new transformer might be factory filled at 70°C, immediately after drying, then installed at -40°C causing a significant drop in the liquid volume possibly exposing contacts of LB switches and causing a failure of the switch. Phil suggested that some words be added to standards to address this issue.

Phil presented on an expressed desire by some wind farm transformer users to have a third compartment on pad-mount transformers for metering equipment and/or the LB switch control. This would separate this equipment from the HV and LV compartments. The concern of these wind farm operators was arc fault issues in the secondary compartment. There was some discussing concerning this issue. Jerry Murphy shared some testing that was done by Industrial Application Society Electric Safety Workshop Group which indicated that effective arc rating of clothing would be low due to the spacing of the bushing in the transformer. Steve Shull said that this was supported by the NESC since in this standard the effective arc rating would be 4 cal/cm2.

Steve adjourned the meeting with unanimous consent at 10:32am.

11.7 DIELECTRIC TESTS SUBCOMMITTEE – MIKE FRANCHEK

Mike Franchek, Chair; Thang Hochanh, Vice-Chair; Dennis Marlow, Secretary The Dielectric Tests Subcommittee (DISC) met on Wednesday, March 20 at 11:00 am with 157 persons in attendance. There were 61 of 107 members, and 96 guests present. Eleven of the returning guests requested membership and will have their participation status reviewed prior to acceptance. Seven (7) were accepted as new members. Mike Franchek is welcomed as the new Chair replacing long standing Loren Wagenaar.

11.7.1 Chair’s Remarks 1. The Chair briefly reviewed highlights of the Administrative Subcommittee meeting held on

Sunday afternoon. In order to remain an active member in the in the Sub-Committee, participants will need to have attended 1 meeting out of the last 2. Exceptions may be granted for special conditions. The other main points have already been discussed in the Main Committee meeting on Monday and were not repeated.

2. The following meetings of the TC are:

a) Fall October 20-24, 2013 – St. Louis, MO – hosted by H-J Enterprises at Renaissance Grand Hotel $139 per night plus taxes

b) Spring March 23-27, 2014 – Savannah GA – hosted by EFACEC Additional meeting sites will be listed on the main committee website.

11.7.2 Quorum and Approval of Minutes 1. 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.

2. The minutes of the fall 2012 meeting in Milwaukee were approved without correction.

11.7.3. Working Group Reports 11.7.3.1 Working Group on External Dielectric Clearances, Eric Davis, Chair;

Dennis Marlow, Secretary The Working Group met on March 18, 2013 at 9:45 am with 35 people attending the meeting; seven members, one corresponding member, and 28 guests. A quorum was achieved. The membership list will be reviewed to include only those members who have attended at least one of the last 2 meetings.

Eduardo Garcia moved that the Fall 2011 meeting minutes be approved as written. Vinay Mehrotra seconded the motion. There was no discussion. The motion passed and the minutes were approved as printed.

David Wallace moved that the Spring 2012 meeting minutes be approved as written. Eduardo Garcia seconded the motion. There was no discussion. The motion passed and the minutes were approved as printed.

David Wallace moved that the Fall 2012 meeting minutes be approved as written. Eduardo Garcia seconded the motion. There was no discussion. The motion passed and the minutes were approved as printed.

The WG reviewed the proposed clearance table for 1.2 through 230 kV with the changes discussed at the last meeting. There were no comments on the revised table. It will be sent out to the Subcommittee for survey.

The WG discussed the minimum clearance between the top sheds of bushings. It was noted that the early bushings had a stud connection and typically had an inch or more of porcelain between the metal stud and the edge of the bushing shed. This is no longer true with the condenser style bushings.

It was also noted that no one had ever seen a flashover from porcelain to porcelain. Mike Franchek indicated that the critical stress on the metal top cap of a bushing is always higher than the shed to shed stress.

Dennis Marlow offered to contact Bob Veitch who previously was involved with the existing table around 1980 in order to gain some history regarding the origins of this table..

After some discussion, the majority of the people in attendance felt that:

• The metal to metal clearance is the critical clearance. • The minimum clearance between the top sheds of bushings should be removed from the

table.

The WG reviewed the switching surge phase-to-ground clearances. We agreed to use the formula contained in IEEE 1313.2 and IEEE 1427 with a gap factor equal to 1.3. The majority of the people in attendance felt these clearances should be based on a 90% probability of withstand. These values will be calculated and distributed to the WG prior to the next meeting.

Meeting adjourned at 11:00 am

Respectfully submitted, Dennis Marlow

11.7.3.2 Task Force on Dielectric Frequency Response (DFR) – Ali Naderian, Chair; Poorvi Patel, Secretary. Monday, March 18th, 2013 – (3:15 -4:30PM)

The meeting was called to order by the chair at 3:15 PM. There were a total of 42 attendees; 13 members, 5 requested new membership and 24 new guests.

1. Introduction of members and guests.

2. The minutes of meeting from Fall 2012 meeting in Milwaukee could not be approved since there was no quorum.

3. WG C57.161 under Dielectrics was assigned for DFR. The WG was approved by Transformers Administrative Committee. PAR has not been submitted and is waiting for approval of Admin Standard Committee. It is expected that The PAR will be approved by the Fall 2013 meeting in St. Louis MS.

4 The approved scope and purpose of the DFR guide from the Milwaukee meeting was presented for new members..

• Scope: This guide is applicable to the methods of Dielectric Frequency Response (DFR) of liquid immersed transformers. The guide includes recommendations for instrumentation, procedures for performing the tests and techniques for analyzing the data. This guide can be used in both field and factory applications.

• Purpose: The purpose of this guide is to provide the user with information that will assist in performing Dielectric Frequency Response measurements and interpreting the results from these measurements.

5. Within the given scope and purpose of the TF, the Table of content for the DFR Guide was discussed and revised but not approved since there was no quorum.

6. The minutes of Fall 2012 meeting and the Table of contents will be circulated to the TF members by email before the Fall 2013 meeting.

7. The Revised Table of Contents: 1. Overview

1.1 Scope 1.2 Purpose

2. Definitions 3. DFR measurement overview

3.1 Use of DFR 3.2 DFR Moisture Application 3.3 Recommended DFR measurement test parameters

4. Making a DFR measurement 4.1 Test procedures 4.2 Test environment preparation 4.3 Test object preparation 4.4 Test connections 4.5 Test Specification 4.6 Test leads 4.7 Measurement methods

5. Test records 6. Measurement analysis, interpretation and report

6.1 Moisture estimation 6.1.1 Introduction 6.1.2 Modeling 6.1.3 Factors influencing moisture estimate 6.1.4 Report

6.2 Examples Annex A (informative) DFR moisture estimate theory+ Other diagnostics Annex B DFR Other Application Annex C (informative) Bibliography

8. Meeting was adjourned at 4.30 pm.

Respectfully submitted Poorvi Patel, Secretary

11.7.3.3 Working Group for Revision of the Distribution Impulse Test Guide C57.138,

Recommended Practice for Routine Impulse Test of Distribution Transformers; John Crotty, Chair WG did not meet .No report submitted

11.7.3.4 Working Group on Revision of Impulse Tests – Pierre Riffon, Chair; Peter Heinzig, Vice-Chair

The WG met on March 19, 2013, from 09:30 am to 10:45 am. Sixteen members (16) members and forty-three (43) guests attended the meeting. Six (6) guests requested membership. The meeting was chaired by Pierre Riffon, chair of the WG.

Required quorum was met.

The agenda has been reviewed and approved as written.

Minutes of the Milwaukee meeting were approved as written.

The first technical subject on the agenda was the review of the proposal regarding revision of clause 5.10.7.2 of IEEE C57.12.00 "Switching impulse tests". The proposal was surveyed within the WG and Dielectric Tests SC and the responses reviewed at the Milwaukee meeting. This proposal did not receive more comments at the Munich meeting and will be sent to Steve Snyder for inclusion in the upcoming draft of C57.12.00 for ballot.

The second technical item of business was related to the Class I and Class II definition regarding impulse testing. As surveyed within the WG and Dielectric Tests SC, the proposal of having transformers with high-voltage windings 69 kV and maximum nameplate rating of 15,000 kVA or above for three-phase transformers or 10,000 kVA or above for single-phase transformers to be routine impulse tested as actual Class II transformers has been largely accepted (90% approval).

Instead of changing piece by piece the applicable parts of C57.12.00 and C57.12.90 for conforming to the decision taken, it will be much more practical and simple to change the definition of Class I and Class II transformers. Nevertheless, this decision is beyond the scope of the WG as well as the Dielectric Tests SC. Some of the tests required for Class I and Class II transformers are not Dielectric Tests and are under the responsibility of PSC. The WG is asking the Dielectric Subcommittee Chair to coordinate this matter with PCS. If PCS disagree with the proposed change of the definition, then applicable parts regarding impulse testing of C57.12.00 and C57.12.90 will be changed piece by piece. This solution is not recommended since the standard will become extremely complex and perhaps confusing.

As old business, the order of impulse tests is not defined in C57.12.90. The actual clause 10.1.5.1 of C57.12.90 lets the choice to the manufacturer of doing either the lightning impulse tests or the switching impulse test as the first impulse test series. The new IEC draft (14/745/FDIS) specifies a mandatory order (which can be changed upon agreement), the lightning impulse test being required first and followed by the switching impulse test series. After discussion, a majority of the people present at the meeting see some merit of such testing order if preferred, but not mandatory. A proposal will be circulated for survey within the WG and the Dielectric Tests SC prior to the next meeting.

The meeting adjourned at 10:30 am on March 19, 2013.

Pierre Riffon P. Eng.

WG Chair March 19, 2013

11.7.3.5 Working Group on Revision of Low Frequency Tests; Bertrand Poulin, Chair; Bill

Griesacker, Secretary March 19, 2013, 1:45 pm Ammersee I The meeting was called to order and introductions were conducted.

A quorum was not immediately present; the meeting proceeded as an informal discussion.

The Chair Thang Hochanh for the Task Force on PD in Bushings and PTs/CTs gave his report. A PAR has been approved for this TF to generate a document PC57.160. The new WG has 4 years to generate and ballot this new document. The document is already progressing well and a first draft is expected next year. Old Business:

There was an extension of the Class 1 / Class 2 power transformer discussion as previously discussed in the WG on impulse test revisions. The recommendation is to take this

issue up at the Dielectric Test Sub Committee meeting with regard to changing the definitions of Class 1 & Class 2 power transformers. The previously conducted survey in this WG is strongly in support of this change.

The previously requested survey of the Tap Changer position during induced testing will be conducted in the coming weeks.

A quorum was established with 19 of 37 members at 2:00 PM. Following this, the meeting minutes from Fall 2012 in Milwaukee were reviewed and approved without objection.

The T/C position during induced testing had additional discussion. Some members present indicated that they conducted induced testing with the Load Tap Changer set in the maximum position.

New Business:

There was a query about the allowable frequency for the applied test. The reason for this request is that for resonant test set testing, it is typically easier with a variable frequency power supply to tune the frequency to the circuit than it is to tune the circuit to the frequency. The standard was consulted and the maximum permitted frequency was confirmed at 500 Hz. This value was suitable so discussion was suspended.

There were no objections to adjourning the meeting at 2:15PM.

Checking the membership rosters there was a total of 20 members present. Respectfully submitted, Dan Sauer 3/19/13 11.7.4 Liaison Reports 11.7.4.1 High Voltage Test Techniques (HVTT), IEEE Standard 4 - Arthur Molden The newly revised edition of IEEE Standard 4, “High Voltage Testing Techniques” has completed the balloting process and was approved by the IEEE-SA Standards Board on March 6th. The new revision will be published shortly, and will replace IEEE Standard 4, 1995. Report prepared by Jeff Britton, Secretary, IEEE HVTT Subcommittee 11.7.5 Old Business

11.7.5.1 Comments from C57.12.00 Ballot on Dielectric Test Tables Table 5 Phil Hopkinson again reported that Columns 12 and 13 of Table 5 were incorrectly labeled as “Impedance grounded wye.” Column 12 should be labeled “Grounded wye” and Column 13 “Impedance grounded wye.”

At the previous meeting, Jin Sim pointed out that the applied test values in Table 5, Column 4 do not match the Neutral BIL values listed in Table 5, Column 13 for 36-kV, 48-kV and 73-kV when compared to the values contained in C57.12.00-2006, Table 6.

Col 1 (kV) Col 13(kV Crest) Col 13 (Proposed) 36 125 150 48 150 200

73 200 250 The following comments were also received from Steve Antosz following the meeting and are included in these minutes. “I call your attention to columns 4 and 12 in Table 5. (I recognize that the heading of column 12 should be “grounded wye”. Phil already recognized this transcription error.)

Basically my question is, “What is the Applied Test level for a grounded wye winding with a neutral greater than 110 kV BIL?” The 2010 Table 5 doesn’t have this anymore, since it assumes that all neutrals are 110 kV BIL, which would get a 34 kV Applied Test. Well, I rarely see 110 BIL grounded wye neutrals on large and medium transformers. Usually are 150 BIL, and sometimes higher.

I feel that the table should be revised somehow to designate higher applied test levels for ‘grounded wye windings with neutrals greater than 110 BIL’. The 2006 tables were OK in this regard.” There are several corrections and modifications that need to be made to this table. These must be made and approved by the SC prior to the next meeting so that they can included in the next revision of C57.12.00. If not possible then as agreed at the prior meeting, the WG on the Continuous Revision of C57.12.00 shall immediately prepare a Corrigenda correcting Table 5 Bertrand Poulin also indicated that for 550 kV class transformer that there actually exists both 500 and 550 kV class transformers. Thus the enhanced 550 kV and 1 hour 475 kV levels for induced tests are not consistent with respect to the system operating voltages. Phil Hopkinson reported that for repair of old transformers built to previous versions of C57.12.00 that the values in those standards should be used for test references with the appropriate factor for rebuilt transformers.

11.7.5.2 Class I/Class II Classification for Transformers

There is adequate response now for this issue to be resolved by the DI Test SC. Proposed wording will be prepared and circulated to the membership prior to the next meeting. The PCS SC will also need to approve the proposal for some non dielectric issues. 11.7.6 New Business 11.7.6.1 C57.127 New Working Group on the Revision of Partial Discharge Acoustic

Detection starting next meeting – Jack Harley – Detlev Gross Co-Chairs, . A new Working Group will revise C57.127 Guide for the Detection and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors. The first meeting of the WG will be in St. Louis at the fall TC meeting. The WG will address technology changes and diagnostic method improvements that have occurred since the last guide was published in 2007. The revision date will be 2018 Jack Harley and Detlev Gross are Co-chairs of the WG

. 11.7.7 Meeting adjourned 12.15 PM. Minutes respectfully submitted by Dennis Marlow

REVISED OCT11, 2013..ADDED LIASON REPORT 11.11.4.1

11.8 HVDC CONVERTER TRANSFORMERS & REACTORS – MIKE SHARP

On March 18, 2013, the HVDC Converter Transformers and Smoothing Reactors S.C. met at 3:15 p.m., in the Bodensee I Meeting Room of the Dolce Hotel, in Munich, Germany. The Chairman Mike Sharp could not attend this meeting and the Vice Chairman Les Recksiedler chaired the meeting. There were 9 members and 20 guests present. One of the guests requested membership. The following are the highlights of the meeting:

1. Introductions were made and the attendance list circulated.

2. The total membership of the SC is 23, but currently that includes 5 corresponding members. If a corresponding member is not present at the meeting, then he/she is not included in the evaluation for the quorum. That means that at least 9 members (50% of 18) should have been present in order to get quorum and that was met. The chairman, Mike Sharp, will go through the membership list again to see if it should be reduced further in order to facilitate quorum in coming meetings. The minutes from the Milwaukee meeting (Fall 2012) were approved.

3. No report on the meeting of the Administrative SC was given since Mike Sharp was not present and he had attended that meeting.

4. The converter transformer standard IEEE C57.129 will expire 2018 and the Smoothing reactor standard IEEE 1277 will expire 2020.

5. Dual logo/harmonization with IEC for converter transformers. Ulf Radbrandt gave information from his contact with Anders Lindroth, which is the convener for the revision of IEC 61378-2, were they concluded that IEC and IEEE should harmonize their converter transformer standards as much as possible and then see if it is possible to go for a dual logo standard. A major problem is the many references to IEC and IEEE respectively. Paul Jarman (also Chairman of IEC TC14) said that the timing to go for a dual logo is very good right now since both standards are in the start up process for new revisions (might not occur again for a very long time) and that he thought that we should try. The new revision of IEC 61378-2 is scheduled to be issued in 2016. That might give too short time for harmonization and double balloting. The year 2016 might be flexible. If it is possible to postpone that to 2018 (same as IEEE C57.129) then we would get enough time for this. Erin Spiewak (IEEE-SA) mentioned that there are possibilities to make a dual logo standard with some built in alternatives, e.g. different methods if IEC and IEEE can’t agree upon some parts. It is possible to do a Dual Logo Standard quickly as the Dual Logo WG for transformers for wind turbine applications has performed a rapid review. Ulf Radbrandt gave a presentation of a comparison (between the two standards) that he has started. The two standards have very much similarity even though they are arranged

differently. Three major differences are also found so far: 1. The rated current has different definitions, i.e. with and without harmonics. 2. The guaranteed losses are defined at 85°C for IEEE and at 75°C for IEC. 3. The calculations of losses are very different. These differences must be handled. The best is if IEC and IEEE can agree of the same methods but there are also the possibilities to include different methods of e.g. two methods for loss calculation and measurement and maybe also mention e.g. “This method is commonly used in North America” and “V in Europe”. Volunteers are needed to continue with a more thorough comparison of the two standards. At this meeting Eric Davis, Fred Elliott, Les Recksiedler and Ulf Radbrandt volunteered. The other members are encouraged to volunteer to help with this. We can divide the work in different areas, e.g. Rating, Dielectric Tests, Losses, Audible Noise

A motion was put forward by Fred Elliott and seconded by Eric Davis to do a Dual Logo Standard for Converter Transformers. The vote result from SC members only was reported at the meeting as 9 for and 1 against so we should therefore start the process. (A review of the roster after the meeting revealed the correct vote numbers should have been stated as 8 for and 1 against) We must contact IEC again to see if they agree and see if we should start to plan for joint working meetings. Action Item: Ulf Radbrant to contact Anders Lindroth IEC. This will require a version of the IEC standard on the IEEE website and a copy of the IEEE Standard on the IEC web site for members to do the comparisons

6. Klaus Pointner informed about the status of Mike Sharp’s and his work with an Annex for Converter Reactors that should be incorporated in IEEE 1277. They have now retrieved the Word versions of the present standards (IEEE 1277 and IEC C57.129) so it is possible to start to prepare the Annex in the right template. There is some good material from the IEC SC 22F (Power Electronics for electrical transmission and distribution systems) regarding state of the art voltage source converters (e.g document 22F/300/DTR amendment 1 for IEC/TR 62543), that can be used. Permission from the SC to use some of the content shall be obtained. A first basic draft of this Annex should be ready for the next meeting. As the standard IEEE1277 is valid until 2020 the best way to implement the converter reactors is an annex to the main document. This will not jeopardize the validity of the main document.

7. Les Recksiedler informed about the work on a guide on life assessment and life extension of HVDC Converter Stations of which converter transformers are a part of the assessment. Les is now convener of B4.54 within Cigré, where they are working on a high level to consider all kind of aspects, for this topic to be completed by December 31, 2013. Since this SC will put a lot of its effort for the Dual Logo Standard on Converter Transformers with IEC, it will be difficult to also incorporate the work required into a similar guide for life assessment and life extension of converter transformers at this time, so the item will be deferred.

8. The meeting was adjourned at 3:55 p.m.

Les Recksiedler, Vice Chairman Ulf Radbrandt, Secretary

11.9 INSTRUMENT TRANSFORMERS SC – ROSS MCTAGGART

• The Instrument Transformer Subcommittee met on Wed March 20 at 8:00 AM. • 11 of the 19 members plus 13 guests attended • 4 guests requested membership

Chair’s Remarks & Announcements

• The schedule for future meetings was presented • The previous meeting’s minutes were approved as written

The status of all C57.13 standards was reviewed

10.1.1 Task Force Report: PARTIAL DISCHARGE IN BUSHINGS AND VTs/CTs The task force on Partial Discharge in Bushings and PTs/CTs met on Tuesday March 19th, 2013, at 11:00am with 43 participants. Of those, 19 were members and 24 were guests. Next meeting in St Louis will be the first meeting as C57.160 Working Group.

� The meeting was opened with attendance sheets and introductions.

� The minutes for the F12 Milwaukee meeting were presented and approved.

� Bertrand Poulin announced to the group that the PAR was approved and the task force has been granted WG status as project C57.160.

� A concern about the format of the document draft #3 was expressed since there may be duplication of work and sections as the sub-groups have been working independently.

� Significant editorial work is expected in order to add adequate structure to the document.

� The TF Chair requested revisions on the version #3 of the guide which was distributed by e-mail prior to the meeting and a number of printed copies were distributed for such effect. 3 discussion groups were formed for focused discussions on:

• PD in Instruments Transformers, led by Vladimir Khalin.

• PD in Bushings, led by John Graham.

• Generalities and Definitions, led by Wolfang Hauschild.

� After the discussions, each group presented a summary of comments and suggestions from their discussion that will be considered in the next draft. Follow up by the group leaders with comments on the discussed draft #3.

Closing summary and remarks: PD in Instruments Transformers, led by Vladimir Khalin.

• Need to identify common clauses in aspects such as calibration and background noise. • Put pictures within text or separate?

Generalities and Definitions, led by Wolfang Hauschild.

• Definitions should be fully in line with existing IEC57113 standards on PD measurements for transformers. Compare later again.

• Frequency response: wide band 500 kHz upper limit new IEC up to 1000 kHz, bandwidth 900 kHz.

• Text needs re-editing PD in Bushings, led by John Graham.

• Section 6. Discussion on details of tests arrangements. • What is critical for PD test in bushings and why. Is this covered in other documents? • Different test circuits: influence of different capacitances and the selection of grounded

or ungrounded specimen test. Hi and low capacitance. • Comments on bushings with both test tap and voltage tap. How to use them safely. • LV bushings with no C2. How to test C1? • Interpretation and discharge patterns, typical displays for diagnosis and defects. • Test procedure: DC test, repeats C57.19.03 may be taken out? • High C2 capacitance, some bushings up to 20 nF.

TF minutes by: Arturo Del Rio.

10.1.2 Working Group on Current Transformers with mA range (PE/TR/PE/TR/Instrument-WG C57.13.7) - Chair (acting): Adnan Rashid Henry Alton emailed the following agenda: The Agenda is to decide on the comments, update the document and hopefully reach the final document position which I sincerely hope will be possible. Participants accepted the agenda

• Participants discussed comments on draft D3 of the C57.13.7 standard. • Participants discussed burden designations as proposed by Vladimir Khalin. Comments

were made that the proposed designation is more representative of the burden’s actual impedance values. A counter argument to this was presented suggesting that the designations in the draft document are in line with the equivalent VA values as determined for 5A secondary rated CT’s. The group preferred to adopt the proposal by Vladimir.

• The group reviewed the other comments and no further proposals were presented. • The chair presented a proposal provided by Dr. Eddy So (via e-mail). The proposal was

to add a section dealing with requirements for accuracy and accuracy of calibration systems. This was accepted in principle.

• The group was informed that an updated draft reflecting the comments will be provided by Henry Alton for a final round of voting.

10.1.3 Working Group for Revision of IEEE C57.13 Instrument Transformers

R. McTaggart The WG met on Tues March 22 with 10 of the 21 members present (Quorum not attained) along with 15 guests - 2 of whom requested membership. This will be dependent on participation. Since it is affecting Quorum, non-attending members will be reclassified as guests. A brief history of the WG was presented along with the future milestones. The chair pointed out that to meet the schedule we need to quickly produce a 4th Draft which is good enough that most WG members will vote to accept it. We voted to remove the annex on SSVT’s (9 to 1) and start a WG to develop it as a separate Standard. This may have to be confirmed by an email vote due to the quorum issue (note: this was later done and the vote was affirmative). We then started to review comments on draft 3, starting with those pertaining to Partial Discharge. Since there was no quorum, there could be no voting but additional comments from this meeting will be added to the comment summary. An additional comment regarding routine Cap & DF testing was well received and will also be added. It was agreed that the prestress voltage for medium voltage IT’s should be min 80% of Applied Voltage levels to ensure that it is above the SIPL of the arresters. Pierre Riffon explained that for (slow) switching transients, the arresters protect over a wide area whereas for lightning impulse and faster they are only effective close up. There was a discussion about why the ratio of test voltages (AC, BIL, PD prestress and extinction) to rated voltage decreases as the rated voltage increases. Good explanations were provided by Jim McBride and Pierre Riffon who have agreed to provide a short summary for the minutes – see appendix 1. Since many comments were not discussed, it was proposed that we have another meeting in the afternoon. Schedules would not allow this but I proposed a LiveMeeting, to take place in time to have a new draft before the next meeting Adjournment

Appendix 1: Discussion on partial discharge testing

1- The partial discharge test procedure should represent what can happen in service. In service, partial discharges will likely be triggered when an overvoltage event is occurring (typically a switching surge). Following the overvoltage, the system voltage returns to its normal operating voltage. The amplitude of the switching surge is limited by the surge arresters installed on the system. Switching surge phenomenon are typically low frequency and the location of the surge arrester is not critical as it is for lightning impulses. Thus, surge arresters are fairly protecting for large area for phenomenon like switching surges. 2- Typical switching surge protective levels (SIPL) (data from IEEE C62.22):

Maximum system voltage

Ur

(kV rms L-L)

Maximum SIPL

(kV peak)

Ratio SIPL/ Ur

4,37 6,72 1,54 8,73 13,70 1,57 13,1 20,51 1,57 13,9 22,63 1,63 14,5 22,63 1,56 26,2 41,15 1,57 36,2 59,11 1,63 48,3 77,92 1,61 72,5 112,9 1,56 121 188,1 1,55 145 225,7 1,56 169 263,3 1,56 242 376,2 1,55 362 561,6 1,55 550 854,5 1,55 800 1241 1,55

Thus, the maximum protection level is pretty constant in relation with system voltages. For Hydro-Quebec network, typical values are slightly different, the ratio is lower at 800 kV (less margin in the dielectric clearances of the system). For lower system voltages, ratios are slightly higher than given in IEEE C62.22 in order to cope with possible long duration overvoltages (around 1,1 p.u. higher than in the previous table).


Ur

(kV rms L-L)

Maximum SIPL

(kV peak)

Ratio SIPL/ Ur

15 33 2,20 28,4 50 1,76 72,5 150 2,07 145 230 1,59 170 300 1,76 245 410 1,67 330 560 1,70 765 1140 1,49

3- Comparison of rated dielectric withstand levels in function of the system voltage (references: IEC 60071-1 (insulation coordination) for rated voltages ≤ 245 kV and IEC 62771-1, common clauses for switchgear, rated voltages > 245 kV.)


Ur

(kV rms L-L)

Lightning impulse (Up)

(kV peak)

Power frequency withstand

voltage (Ud)

(kV rms)

Ratio (Up/Ur)

Ratio (Ud/Ur)

Ratio (Up/Ur)

3,6 20 10 5,6 2,8 2,0 3,6 40 10 11,1 2,8 4,0 7,2 40 20 5,6 2,8 2,0 7,2 60 20 8,3 2,8 3,0 12 60 28 5,0 2,3 2,1 12 75 28 6,3 2,3 2,7

17,5 75 38 4,3 2,2 2,0 17,5 95 38 5,4 2,2 2,5 24 95 50 4,0 2,1 1,9 24 125 50 5,2 2,1 2,5 36 145 70 4,0 1,9 2,1 36 170 70 4,7 1,9 2,4 52 250 95 4,8 1,8 2,6

72,5 325 140 4,5 1,8 2,3 100 380 150 3,8 1,5 2,5 100 450 185 4,5 1,9 2,4 123 450 185 3,7 1,5 2,4 123 550 230 4,5 1,9 2,4 145 550 230 3,8 1,6 2,4 145 650 275 4,5 1,9 2,4 170 650 315 3,8 1,9 2,1 170 750 375 4,4 2,2 2,0 245 850 360 3,5 1,7 2,1 245 950 395 3,9 1,9 2,1 245 1050 460 4,3 2,2 2,0 300 950 395 3,2 1,3 2,4 300 1050 395 3,5 1,3 2,7 362 1050 450 2,9 1,2 2,3 362 1175 450 3,2 1,2 2,6 420 1300 520 3,1 1,2 2,5 420 1425 520 3,4 1,2 2,7 550 1425 620 2,6 1,1 2,3 550 1550 620 2,8 1,1 2,5 800 2100 830 2,6 1,0 2,5

Ratio Up/Ur

0,0

2,0

4,0

6,0

8,0

10,0

12,0

0 100 200 300 400 500 600 700 800

System voltage (kV rms L-L)

Ratio

Ratio Up/Ur

0,0

1,0

2,0

3,0

4,0

5,0

6,0

0 100 200 300 400 500 600 700 800


Ratio

RatioUd/Ur

0,0

1,0

2,0

3,0

0 100 200 300 400 500 600 700 800


Ratio

4- Comparison of rated dielectric withstand levels in function of the system voltage (references: IEEE C57.13-2008).


Ur

(kV rms L-L)


(kV peak)


voltage (Ud)

(kV rms)

Ratio (Up/Ur)

Ratio (Ud/Ur)

Ratio (Up/Ur)

0,66 10 4 15,2 6,1 2,5 1,2 30 10 25,0 8,3 3,0 2,75 45 15 16,4 5,5 3,0 5,6 60 19 10,7 3,4 3,2 9,52 75 26 7,9 2,7 2,9 15,5 95 34 6,1 2,2 2,8 15,5 110 34 7,1 2,2 3,2 25,5 125 40 4,9 1,6 3,1 25,5 150 50 5,9 2,0 3,0 36,5 200 70 5,5 1,9 2,9 48,3 250 95 5,2 2,0 2,6 72,5 350 140 4,8 1,9 2,5 123 450 185 3,7 1,5 2,4 123 550 230 4,5 1,9 2,4 145 650 275 4,5 1,9 2,4 170 750 325 4,4 1,9 2,3 245 900 395 3,7 1,6 2,3 245 1050 460 4,3 1,9 2,3 362 1300 575 3,6 1,6 2,3 550 1675 750 3,0 1,4 2,2 550 1800 800 3,3 1,5 2,3 800 2050 920 2,6 1,2 2,2

Ratio Up/Ur

0,0

5,0

10,0

15,0

20,0

25,0

30,0

0 100 200 300 400 500 600 700 800


Ratio

Ratio Up/Ur

0,0

1,0

2,0

3,0

4,0

5,0

6,0

0 100 200 300 400 500 600 700 800


Ratio

5- Comparison of rated dielectric withstand levels in function of the system voltage (references: IEEE C57.13.5-2008).


Ur

(kV rms L-L)


(kV peak)


voltage (Ud)

(kV rms)

Ratio (Up/Ur)

Ratio (Ud/Ur)

Ratio (Up/Ur)

121 550 230 4,5 1,9 2,4 145 650 275 4,5 1,9 2,4 169 750 325 4,4 1,9 2,3 242 950 395 3,9 1,6 2,4 242 1050 460 4,3 1,9 2,3 362 1175 510 3,2 1,4 2,3 362 1300 575 3,6 1,6 2,3 550 1550 680 2,8 1,2 2,3 550 1800 830 3,3 1,5 2,2 800 2100 975 2,6 1,2 2,2

RatioUd/Ur

0,0

1,0

2,0

3,0

4,0

5,0

6,0

7,0

8,0

9,0

0 100 200 300 400 500 600 700 800


Ratio

Ratio Up/Ur

0,0

1,0

2,0

3,0

4,0

5,0

6,0

0 100 200 300 400 500 600 700 800


Ratio

RatioUd/Ur

0,0

1,0

2,0

3,0

0 100 200 300 400 500 600 700 800


Ratio

6- Margins by using IEC 62271-1 and IEC 60071-1 test levels


Ur

(kV rms L-L)


voltage (Ud)

(kV rms)

Pre-stress voltage 80%

of Ud

(kV peak)

Typical SIPL considering a

1,1 p.u. overvoltage

factor

(kV peak)

Ratio (Pre-stress/SIPL)

Margin

(%) 3,6 10 11,31 5,82 1,94 94 3,6 10 11,31 5,82 1,94 94 7,2 20 22,63 11,64 1,94 94 7,2 20 22,63 11,64 1,94 94 12 28 31,68 19,40 1,63 63 12 28 31,68 19,40 1,63 63

17,5 38 42,99 28,29 1,52 52 17,5 38 42,99 28,29 1,52 52 24 50 56,57 38,80 1,46 46 24 50 56,57 38,80 1,46 46 36 70 79,20 58,20 1,36 36 36 70 79,20 58,20 1,36 36 52 95 107,48 84,07 1,28 28

72,5 140 158,39 117,21 1,35 35 100 150 169,71 161,67 1,05 5 100 185 209,30 161,67 1,29 29 123 185 209,30 198,86 1,05 5 123 230 260,22 198,86 1,31 31 145 230 260,22 234,42 1,11 11 145 275 311,13 234,42 1,33 33 170 315 356,38 274,84 1,30 30 170 375 424,26 274,84 1,54 54 245 415 469,52 396,09 1,19 19 245 460 520,43 396,09 1,31 31 245 530 599,63 396,09 1,51 51 300 395 446,89 485,01 0,92 -8 300 395 446,89 485,01 0,92 -8 362 450 509,12 585,25 0,87 -13 362 450 509,12 585,25 0,87 -13 420 520 588,31 679,02 0,87 -13 420 520 588,31 679,02 0,87 -13 550 620 701,45 889,19 0,79 -21 550 620 701,45 889,19 0,79 -21 800 830 939,04 1293,37 0,73 -27

Green: Margin sufficient e.g. > 15% (15% value is the minimum margin value given in insulation coordination standards, Red: insufficient margin e.g. < 15%


Ur

(kV rms L-L)


voltage (Ud)

(kV rms)


of Ud

(kV peak)



factor

(kV peak)


Margin

(%) 3,6 10 14,14 5,82 2,43 143 3,6 10 14,14 5,82 2,43 143 7,2 20 28,28 11,64 2,43 143 7,2 20 28,28 11,64 2,43 143 12 28 39,60 19,40 2,04 104 12 28 39,60 19,40 2,04 104

17,5 38 53,74 28,29 1,90 90 17,5 38 53,74 28,29 1,90 90 24 50 70,71 38,80 1,82 82 24 50 70,71 38,80 1,82 82 36 70 98,99 58,20 1,70 70 36 70 98,99 58,20 1,70 70 52 95 134,35 84,07 1,60 60

72,5 140 197,99 117,21 1,69 69 100 150 212,13 161,67 1,31 31 100 185 261,63 161,67 1,62 62 123 185 261,63 198,86 1,32 32 123 230 325,27 198,86 1,64 64 145 230 325,27 234,42 1,39 39 145 275 388,91 234,42 1,66 66 170 315 445,48 274,84 1,62 62 170 375 530,33 274,84 1,93 93

245 415 586,90 396,09 1,48 48 245 460 650,54 396,09 1,64 64 245 530 749,53 396,09 1,89 89 300 395 558,61 485,01 1,15 15 300 395 558,61 485,01 1,15 15 362 450 636,40 585,25 1,09 9 362 450 636,40 585,25 1,09 9 420 520 735,39 679,02 1,08 8 420 520 735,39 679,02 1,08 8 550 620 876,81 889,19 0,99 -1 550 620 876,81 889,19 0,99 -1 800 830 1173,80 1293,37 0,91 -9

Green: Margin sufficient e.g. > 15% Orange: Margin still positive, slightly lower SIPL surge arrester can be chosen to get 15% margin; Red: insufficient margin e.g. < 15% lower SIPL surge arrester can be chosen to get 15% margin or higher pre-stress voltage could be required.

7- Margins by using IEEE C57.13-2008 test levels


Ur

(kV rms L-L)


voltage (Ud)

(kV rms)


of Ud

(kV peak)



factor

(kV peak)


Margin

(%) 0,66 4 4,53 1,07 4,24 324,1 1,2 10 11,31 1,94 5,83 483,2 2,75 15 16,97 4,45 3,82 281,7 5,6 19 21,50 9,05 2,37 137,4 9,52 26 29,42 15,39 1,91 91,1 15,5 34 38,47 25,06 1,54 53,5 15,5 34 38,47 25,06 1,54 53,5 25,5 40 45,25 41,23 1,10 9,8 25,5 50 56,57 41,23 1,37 37,2 36,5 70 79,20 59,01 1,34 34,2 48,3 95 107,48 78,09 1,38 37,6 72,5 140 158,39 117,21 1,35 35,1 123 185 209,30 198,86 1,05 5,3 123 230 260,22 198,86 1,31 30,9 145 275 311,13 234,42 1,33 32,7 170 325 367,70 274,84 1,34 33,8 245 395 446,89 396,09 1,13 12,8 245 460 520,43 396,09 1,31 31,4 362 575 650,54 585,25 1,11 11,2 550 750 848,53 889,19 0,95 -4,6 550 800 905,10 889,19 1,02 1,8 800 920 1040,86 1293,37 0,80 -19,5



Ur

(kV rms L-L)


voltage (Ud)

(kV rms)


of Ud

(kV peak)



factor

(kV peak)


Margin

(%) 0,66 4 5,66 1,07 5,30 430 1,2 10 14,14 1,94 7,29 629 2,75 15 21,21 4,45 4,77 377 5,6 19 26,87 9,05 2,97 197 9,52 26 36,77 15,39 2,39 139 15,5 34 48,08 25,06 1,92 92 15,5 34 48,08 25,06 1,92 92 25,5 40 56,57 41,23 1,37 37 25,5 50 70,71 41,23 1,72 72 36,5 70 98,99 59,01 1,68 68 48,3 95 134,35 78,09 1,72 72 72,5 140 197,99 117,21 1,69 69 123 185 261,63 198,86 1,32 32 123 230 325,27 198,86 1,64 64 145 275 388,91 234,42 1,66 66 170 325 459,62 274,84 1,67 67 245 395 558,61 396,09 1,41 41 245 460 650,54 396,09 1,64 64 362 575 813,17 585,25 1,39 39 550 750 1060,66 889,19 1,19 19 550 800 1131,37 889,19 1,27 27 800 920 1301,08 1293,37 1,01 1


8- Margins by using IEEE C57.13.5-2009 test levels


Ur

(kV rms L-L)


voltage (Ud)

(kV rms)


of Ud

(kV peak)



factor

(kV peak)


Margin

(%) 121 230 260,2 195,62 1,33 33,0 145 275 311,1 234,42 1,33 32,7 169 325 367,7 273,22 1,35 34,6 242 395 446,9 391,24 1,14 14,2 242 460 520,4 391,24 1,33 33,0 362 510 577,0 585,25 0,99 -1,4 362 575 650,5 585,25 1,11 11,2 550 680 769,3 889,19 0,87 -13,5 550 830 939,0 889,19 1,06 5,6 800 975 1103,1 1293,37 0,85 -14,7



Ur

(kV rms L-L)


voltage (Ud)

(kV rms)


of Ud

(kV peak)



factor

(kV peak)


Margin

(%) 121 230 325,27 195,62 1,66 66 145 275 388,91 234,42 1,66 66 169 325 459,62 273,22 1,68 68 242 395 558,61 391,24 1,43 43 242 460 650,54 391,24 1,66 66 362 510 721,25 585,25 1,23 23 362 575 813,17 585,25 1,39 39 550 680 961,67 889,19 1,08 8 550 830 1173,80 889,19 1,32 32 800 975 1378,86 1293,37 1,07 7


Conclusions:

• From the above values, ratios Up/Ur and Ud/Ur are generally going down with rated system voltage.

• Thus, it is normal that the pre-stress level (defined as 80% of Ud) is more acceptable for lower

system rated voltages.

• With the exception of few points, 80% of Ud pre-stress voltage seems sufficient up to rated voltage of 245 kV.

• 100% of Ud pre-stress voltage is needed for rated voltage 300 kV and above.

• Lower SIPL protective levels than used in this technical note should be chosen for 550 kV and

800 kV systems.

11.10 INSULATING FLUIDS SC – SUSAN MCNELLY

Chair: Susan McNelly

Vice-Chair: Jerry Murphy

Secretary: C. Patrick McShane

Introduction/SC Member Roll Call/New SC IF Members

The Chair started the meeting with a welcome and polled the attendees to determine if the quorum

requirements were met. Unfortunately the requirements were missed by just one. There were 22

members and 34 guests. Eight of the guests requested membership.

Guests requesting membership since F12 membership meeting:

Josh Herz

Jose Izquierdo

Min Jea Lee

John K. John

Guests meeting the requirements for membership status after the S13 meeting:

Dave Hanson

James Rowland

Robert Kinner

Jimmy Rasco

Approval of the posted minutes from Fall 2012

Due to lack of a quorum, the minutes approval motion could not be made.

Working Group and Task Force SC Reports and Submitted Unapproved Minutes

C57.104 – IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed Transformers

WG Chair: Rick Ladroga, Vice-Chair: Claude Beauchemin, Secretary: Sue McNelly

The WG Report at the Sub-Committee Meeting: Presented by Claude Beauchemin:

The key topic discussed at the meeting was gas saturation and reviewing the method of “number

crunching” of the very large data base. The WG has been active, including a meeting held in

January. Confidentiality and access to the data received is still an issue. There is still a lot of work

to be done with the data to make it user friendly.

There was no discussion or questions from the attendees.

The Minutes (unapproved) of C57.104 WG Meeting as Submitted:

C57.104 – IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed

Transformers

1. Tuesday, March 19, 2013

2. Munich, Germany

3. Minutes of WG Meeting

4. The meeting was called to order by Chair Rick Ladroga at 3:17pm. Vice Chair Claude Beauchemin and Secretary Susan McNelly were also present.

5. There were 30 of 94 members present. There were 29 guests, and 5 guests requesting membership. A membership quorum was not achieved; the membership list will be reviewed before

the next meeting. Guests attending the WG meeting for the first time who request membership will

be deferred until the next meeting attended.

6. Guests requesting membership were (those identified with an asterisk (4 of the 5) will be added as WG members):

7. Stephanie Denzer * David Murray *

8. Rainer Frotscher * V K Lakhiani

9. Zan Kiparizoski *

Agenda

1. Welcome & Introductions

2. Quorum Check

3. Approval of Minutes from fall 2012 Milwaukee meeting.

4. Chair’s Remarks

5. Presentations

a. Data - Claude Beauchemin – Full presentation was not completed

b. Case Studies – Paul Boman – Time expired before this could be presented.

6. Adjourn

The minutes from the fall 2012 Milwaukee, Wisconsin meeting were not approved due to a lack of

quorum.

Chair’s Remarks:

The C57.104 Executive Leadership (Chair, Vice-Chair, and Task Force Leaders) team met in

Newport Beach, California over the two day period of January 22-23, 2013. The following

persons were in attendance:

Rick Ladroga, Claude Beauchemin, Dave Hanson, Michel Duval, Luiz Cheim, Arturo Nunez,

Norm Field, Paul Boman. Paul Boman acted as Secretary for the meeting.

The primary agenda for the California meeting was to review the progress and status of the Data

Task Force, specifically to lock down categories, classifications, and essentially to organize the

data into a useful tool for the new Guide.

The group looked at the volume of work completed to date which is significant. Claude

Beauchemin will make a presentation during today’s Working Group meeting today to illustrate

some of the things we are looking at.

Some other significant issues came to light during the meetings in California, related to the data

specifically. A concern was raised about the security of the data, which led to a discussion about

data commercial value, security, protection, authorized use of the data, release of information, etc.

An action item was developed to address these issues. Rick Ladroga took ownership of the action

item. Dave Hanson offered to develop a list of concerns and suggestions as we move forward to

develop a data protocol and authorized use policy.

Resolve

Rick Ladroga reviewed Dave Hanson’s draft work and discussed the various items, concerns, and

suggestions for resolution. Rick then contacted the IEEE PES Transformers Committee

Chairman, Bill Chiu, along with Sue McNelly (Insulating Fluids Sub-Committee Chair), and Tom

Prevost via an email dated February 20, 2013, and advised those Executives of the recent

developments within the Working Group. The email essentially contained an Executive Brief, and

specifically requested that the executive management look very closely at this issue, and include it

in the SC meeting in Munich. Rick Ladroga then spoke directly with Bill Chiu, Don Platts, Tom

Prevost, and Sue McNelly prior to the meeting to advise them and bring them up to speed.

The SC meeting was held on Sunday, March 17, 2013 in Munich, Germany. The executive

leadership of the Transformer Committee met at this meeting and the issues involving data were

presented to the group for discussion and consideration. The following action items were agreed to

and assigned as follows:

Data Storage, Archival, and Authorized Use of Data By and For the Working Group

Sue McNelly has been assigned to lead the development of a protocol to address this item.

Specifically, the protocol will involve assigning responsible parties to have control of the data

repository, which will probably include the IEEE PES Transformer Committee Chair, Insulating

Fluids Subcommittee Chair, and Working Group Chair at a minimum. These individuals will

have authorization to approve access of the data repository to WG representatives who

demonstrate need. The document is intended to be a living document, and is expected to grow in

size as time goes on. Sue will establish a method of data storage with the IEEE and their facilities.

The data will then be loaded onto IEEE servers for archiving and security purposes. The data

repository will be accessed upon an as-need basis only, and will updated accordingly. The data

repository will also include an archival history log, which at a minimum, will record the date the

data is accessed, by whom, purpose, actual work done, date of newly archived revision, and

revision number. The new revision data, and the previous revision data shall always be

maintained, i.e. Rev 16 & rev 17, then a new revision is made and the data is updated. Revision

17 & 18 are stored, and Revision 16 can be deleted, if necessary, but the repository must have at a

minimum the most recent revision along with the new revision. Rick offered to help Sue work on

the action item if she needs help. The deadline for completion of this action item is the Fall 2013

IEEE PES Transformers Committee meeting in St Louis.

Data Contribution and Use Policy

Tom Prevost has been assigned the lead role to develop a policy to address the need for an

organized set of procedures that can be utilized by all interested groups within the Transformer

Committee, including but not limited to C57.104, C57.106, C57.139, factory Heat Run, etc. Tom

will address the commercial, collection, security, protection, and use issues that the group has

identified. Rick offered to help Tom and his task Force to complete the action item. It is due and

expected no later than the fall 2013 meeting in St Louis.

Work will continue within the Working Group, while simultaneously working to develop these

policies and procedures. It has been duly noted that the PAR for the C57.104 Guide shall expire

in December 2014.

Presentation – Data Analysis to date

By M Duval, N Field, J Dukarm, L Cheim, L Lin, and C Beauchemin

Presented by Claude Beauchemin

Factors influencing 90 Percentile

What parameter influence 90% value

� Age

� MVA

� kV

� %O2

To evaluate the influence of each parameter, the data was subdivided into groups according to

each parameters values. One parameter at a time was studied.

All data sources were combined for each group and the percentile computed. Results are as

follows:

The following Tables were shown:

Age Table

MVA Table

kV Table

%O2

Claude indicated that there was a tremendous amount of effort to develop the above tables. The

tables show results for the 90 percentile values for each of the categories shown.

The tables were not built on a theory of explanation. The effort was mearly to look at whether

size, age, etc matter.

A question on why %O2 was used was asked. Claude indicated that when he reviewed this, he

started seeing significant differences due to whether a unit was a free breathing type or sealed tank

design. So when the larger database was available, he felt it would be worthwhile to further study

this.

Fredi Jacob indicated that there is one parameter that influences gas generation rate is the loading

factor. Claude and Rick indicated that this data is just not available. The documentation for the

data is fairly poor in many cases. Rick indicated that this was a good point and that the guide

would recommend that this type of information be tracked for future data collection as well as

other parameters.

Comparison of 90% Spread Tables

Comparison of 95% Spread Tables

Observations:

When data is divided according to characteristics such as %O2, Age, Power, and Voltage, large

variations between sub populations were observed.

The largest variation were with O2, followed by Age, MVA and with the smallest variation by

voltage.

Use of statistical values, such as 90 percentile, will need to be qualified by a more precise

description of the population used as reference. Multi-factors selection will likely be required.

Example: Division by %O2 by Age.


90% O2 and Age Table

Comparison 90% O2 and Age Table

For given equipment, this table is closer to actual situations than Table 1 in the present Guide.

However, the tables have inconveniences, such as they are difficult to read, indicate a false

sense of precision, and need further subdivision.

Simplification will be required, such as grouping to reduce the number of categories and

rounding of values.


90% O2 and Age Table

Light rounding Table

Heavy rounding Table

Reducing subdivision Table

Tom Prevost indicated that he didn’t like the direction that this Guide is going. He indicated

that our goal needs to be very simple. He indicated that we should have an open breathing and

closed breathing table. Claude indicated that it will likely not so simple to do this. The

comments indicated that some practical way to present this and provide recommendations on

values for the Guide. Claude indicated he definitely agrees that we need to try and simplify it,

but it will not be easy to do.

There was considerable further discussion on how to best approach a manageable way to present

the information in the Guide.

Bill Chiu indicated that his sense is that we are too early in the process as to a direction that will

be taken. He indicated that hopefully as we continue on this path in evaluating the data that we

will be able to move more in a direction of simplifying the data results.

Rick cautioned that we can’t make operability decisions for the field. We can only help them to

make that decision by providing some general guidelines.

Time ran out before Claude could finish his presentation.

A comment was made that a 90th percentile value will still not guarantee that a unit will not fail

that falls within this range.

Rick welcomed feedback and comments from people be sent to him.

The meeting was adjourned at 4:30 pm.

Rick Ladroga

WG Chair

Claude Beauchemin

WG Vice-Chair

Susan McNelly

C57.106 - Guide for the Acceptance and Maintenance of Insulating (Mineral) Oil - Chair: Bob

Rasor

The WG Report Given at the Sub-Committee Meeting: Presented by Bob Rasor:

The WG met but without a quorum. Three sections of the draft document were reviewed. There

are many more sections to go through, so the WG Chair is working on ratcheting up review

progress. Bob mentioned that even the title of the Guide created a lot of discussion. Another topic

of significant discussion is whether or not to re-include value limits using ASTM D877 Dielectric

Breakdown Voltage Testing. If re-included in the revised Guide, should the test be limited to new

oil or used in other tables. Further discussion is needed to determine which test limit tables D877

would still be relevant.

The Minutes (unapproved) of WG Meeting as Submitted:

Tuesday 19March2013

8 a.m. to 9:15 am

The meeting was called to order by Chair Bob Rasor at 8:00 am. Secretary Claude Beauchemin was

present to help run the meeting in the absence of vice chair Jim Thompson. The roster was passed out

and it was asked for the members (28 total on the roster) to raise their hands. With only 10, we did

not have a quorum.

There were 33 attendees by the end of the meeting with 14 members – 1 short of a quorum. The

following 6 people indicated they would like to become members:

1. Dieter Dohnal

2. Dharam Vir

3. V.K. Lakhiani

4. Derek Baronowski

5. Mike Lapota

6. Roberto Asano

Minutes from the Milwaukee meeting were not voted upon due to a lack of quorum. Bob presented

an introduction and review of the current version’s Scope and Purpose. It was noted that there are

some suggested changes but it is too early to adjust the PAR as there could be more changes.

It was clarified that the PAR will last 4 years if ideally done without an extension. It was stated that

even though we have met 10 different times between meetings and phone conferences, the progress

for 1 year is slow and more aggressive progress is needed to make this goal. TF teams can be created

to address sections that do not require the entire group’s input – such as definitions.

Keeping in mind that without a quorum, there were no final draft decisions made, the draft document

with track changes was reviewed with the following discussion points:

• The title itself was thought better to include some current changes in other groups for

wording consistency. This led to a long discussion. Eventually, tentatively, we agreed to

change the Title of the Guide. Instead of “Insulating Liquid”, the Guide should use “Mineral Oil

Insulating Liquid”.

• A further discussion was concerning the nomenclature “Liquid Immersed” This was

challenged by some, as this is an oil guide and the transformer nomenclature may not be

necessary.

• The D877 test is being kept in Table 1 – as many of the buyers use ASTM and also that

particular test as part of their specification. Move D877 into the first box in Table 1 along with

the D1816 test.

• There was a lengthy discussion on the inhibitor values in Table 1 and Table 2. Minimums in

table 1 are not used by refineries so those values are to be removed. It is up to the refineries to

meet the acceptance requirements for oxidation stability. They can however be listed in the

agreement between the owner and the oil supplier.

• Table 2 keeps the minimums for Type II oil and add a note that the owner is to refer to the

supplier for this information

• Oil in Table 2 to is new oil, but there was a discussion that once it is in the transformer it is

technically not new oil. If we remove the word “New” from the Table 2 title, does this mean

manufacturers can use used oil if it meets the criteria? That was not the intent and wording can

be added to the

• There was discussion about the tables and who uses them for what reasons. A suggestion

was made that for the next meeting, we should first look at the tables and see if they really

accomplish what we want --- rather than revising the existing tables.

Time was out – a motion was raised to dismiss and it was seconded.

Meeting was adjourned at 9:20 am.

C57.130 Trial-Use Guide for Dissolved Gas Analysis During Factory Temerature Rise Tests for the

Evaluation of Oil-Immersed Transformers and Reactors. WG Chair Jim Thompson

The C57.130 WG Report Given at the Sub-Committee Meeting: Presented by Sue McNelly:

The SCIF Chair stated that no meeting was held for this WG and indicated that The PC57.130 straw

ballot is in process. It is being reviewed and will be discussed at an interim teleconference meeting

before the St. Louis meeting and then again at the F13 St. Louis Transformer Committee

meeting. Some negatives have been received, some of which will require time to resolve, however

Jim Thompson expects to complete the project on time.

C57.139 - Guide for Dissolved Gas Analysis of Load Tap Changers

WG Chair: David Wallach, Secretary: Sue McNelly:

The C57.139 WG Report Given at the Sub-Committee Meeting: Presented by David Wallach

10. The discussion at the WG meeting included reviewing the intended focus of the revision of the guide. To They are looking at an hybrid approach factoring in both the Triangle method and a new anagram discussed in a recent

technical article. Information is available on the TC web site. Their goal is to complete the work in 2014.

The Minutes (unapproved) of WG Meeting as Submitted:

WG Meeting C57.139 - Draft IEEE Guide for Dissolved Gas Analysis of Load Tap Changers

Tuesday, March 19, 2013 Munich, Germany

11. Chair Dave Wallach called the WG meeting to order at 11:00 am. Secretary Susan

McNelly was also present. There were 24 of 63 members present (Quorum requirement was not

met). There were 34 guests present with 9 guests requesting membership. Guests attending the WG

meeting for the first time who request membership will be deferred until the next meeting attended.

The membership roster and attendance will be recorded in the Committee AM System.

12. The following guests requested membership in the WG and will be added as members:

13. Stephanie Denzer Craig Stiegemeier

14. Don Angell Pontus Sundqvist

15. Rainer Frotscher Jane Ann Verner

16. Michael Lau Dharam Vir

17. Oleg Roizman

Agenda:

1. Introductions/Member Roll Call

2. Approval of minutes from past meeting

3. Presentation/Update on Nomogram – Fredi Jacob

4. General /Refocusing

5. Task Force Updates – Dave Wallach for Jim Dukarm

6. Old Business

7. New Business

8. Adjourn

Introductions and member roll call were performed. A quorum was not achieved. Maintenance of

the membership roster will be performed prior to the fall 2013 meeting.

The minutes from the Fall 2012 Milwaukee, Wisconsin meeting were not approved due to the lack

of quorum.

18. Presentation/Update: Nomograms, by Fredi Jacob and Jim Dukarm, presented by Fredi

Jacob

Advantages

• No calculations needed to plot data, plot ppm directly

• Cannot plot very low ppm values

• Not limited to three gases

• Ratio calculated and evaluated on plot

• Condition code shown directly on plot

• Multiple dates plotted to show trend

• Easily Generated for Specific LTC models

Gas Ratio Nomogram Ethylene/Acetylene Ratio

Gas Ratio Nomogram for Nitrogen/Oxygen Ratio

Case Study 1

Westinghouse UTT-A Sealed LTC - Had a fault due to contact misalignment

ETHYLENE/ACETYLENE

Case Study 2

ETHYLENE/ACETYLENE NITROGEN/OXYGEN

Case Study 2 - Problem found

Case Study 3 - Federal Pacific TC-25Sealed

ETHYLENE/ACETYLENE

Case Study 3 - Problem found

Discussion of the presentation followed.

Dave Wallach asked how the Nomograms are beneficial to a user if you have already calculated

the statistical ratios of concern using C57.139-2010. Fredi answered that it is strictly a graphical

presentation of the statistical norms that were selected. A user could develop a nomogram for a

given model on their system and plot the ratio based upon sample data by connecting two points.

The color coding would alert the user if there is a concern.. Not everyone has enough of the same

LTC (minimum of 50) to generate their own nomograms, in that case they would use one of the 16

categories as a starting point or work with a laboratory that has a database of more units of this

type for the evaluation of the results. (Some of the population concerns may be able to be

overcome using a hybrid approach discussed later this meeting.)

19. General/Refocusing

20. A draft of the Guide and Appendix D for the Duval Triangle have been developed and are

now available for review on the website and on the Central Desktop.

21. Dave indicated that he has been thinking about where we are at with the Guide. One of

the main reasons this document was immediately carried into a revision after publishing was to work

on norms for different types of LTCs. He indicated that from his perception we have arrived at a

key decision point that at least for now given the different types, different maintenance practices,

and different loading profiles that we will not be able to accomplish this goal at this time. However,

Jim Dukarm and Michel Duval have been considering this point and may have a solution using a

ratio and triangle hybrid approach (presented later this meeting)..

22. From previous ballot comments there was a commenter who suggested we consider

benzene and toluene analysis in this next revision. The commenter promised to provide more

background on this suggestion but has not to date. We will not pursue this topic without a sponsor

or interest.

23. One of the ballot comments from the published guide was concern over using the word

“fault” with a DGA interpretation. This term is commonly used with the topic of DGA. Any change

would have to be coordinated through the Insulating Fluids Subcommittee since this term is used in

other standards such as C57.104. We are not planning to pursue any change at this time and will see

if it comes up again during the next ballot.

24. Task Force Updates

• Task force Report submitted by Jim Dukarm, presented by Dave Wallach

1. Statistical Method Summarized

25.

26. C57.139-2010 provides a respectable way to derive gas concentration and gas

ratio limits from DGA data for a population of 50 or more, and preferably 100 or more

LTCs of the same model with similar operating conditions and maintenance. (See bullet 3

on slide). These limits are designed to identify data values that are so extreme that they

are unlikely to be associated with a trouble-free LTC operating at its usual frequency.

27.

28. 2. Problems with C57.139-2010 Statistical Method

2.1. It is applicable to large LTC populations, but many LTC populations are smaller.

2.2. Limits for similar LTCs are known to differ greatly between companies, so

"generic" or default limits, for generalized LTC types or for specific LTC models,

could not be defined.

2.3. For companies with new LTCs or very effective maintenance practices, the

statistical limits are often found to be too low to be fault-related.

2.4. It is not clear how to define limits by this method that will be useful for exceptional

resistive type LTCs (those that while fault-free sometimes generate relatively large

proportions of heating gas under ordinary operating conditions).

Problem 2.1 can be addressed by a modification of the statistical procedure, making it

applicable to small populations of LTCs, at least for derivation of workable "first guess"

limits. Such a modified procedure has been worked out and is being tested.

Problems 2.2 and.2.3 both arise because of the focus on defining what is extremely

unusual for a given population. That is drastically affected by peculiarities (e.g. thick or

thin tails) of the empirical distributions of gas concentrations or gas ratios. It is also

related to the fact that relative unusualness is not straightforwardly related to risk of

failure.

29. 3. The Duval Triangle 2 for LTCs was published in late 2008 [D1], during

preparation of the first version of C57.139.

30.

31. 3.1 Unlike the "classic" Duval Triangle

for transformer DGA, Triangle 2 has an

N ("normal") zone in which the methane-

ethane-acetylene data from LTCs in

known good condition almost invariably

fall.

32. 3.2 The rest of the triangle is divided into

zones identifying various abnormal

conditions.

33. 3.3 Experience, since the beginning

[Duval, "A review of faults detectable by

gas-in-oil analysis in transformers",

IEEE Electr. Insul. Mag., 2002], has

shown that it is extremely useful to plot

sequences of samples in Triangle 2 for

visualizing fault evolution.

34. 3.4 For each of several exceptional resistive type LTCs, it is possible to define a

second N zone representing its pattern of generating heat gas during normal

operation [Duval, ref. D2].

35. 4. Extra N Zones for Exceptional Types

Duval Triangle 2 is based on documented

cases and internal inspections of a variety

of different LTC types. Its very general

usefulness is due to a difference of

emphasis between it and C57.139-2010.

Triangle 2 characterizes what is most

definitely normal instead of what is

highly abnormal.

The degree of abnormality in each case is apparent visually by the distance of the

plotted point from the N zone. The presence or absence of a trend indicates whether

the LTC's condition is stable; if it is not stable, the approximate nature of the

problem and its relative rate of worsening are visually apparent.

36. 5. Gas Ratio Limits are Straight Lines

37. For the next version of C57.139, problem (2.1) can be addressed by modifying

the statistical procedure. Problems (2.1) through (2.4) can be addressed by adopting a

hybrid approach based on Triangle 2 with statistically or empirically determined features

superimposed on it

38. A C2H4/C2H2 ratio limit (in this case.

0.42) can be represented by a line from the apex

to the base.

39. CH4/C2H4 and C2H2/CH4 (or their

inverses) are represented by lines from the other

corners to the opposite side.

40. Example 3 (Burned Reversing Switch)

from C57.139-2010 is plotted as 2 points in N

followed by 2 points in T3. Thin line joining

them indicates order of occurrence.

41. 5.1. A locally defined population-specific gas ratio limit involving any two

of the gases methane, ethylene, and acetylene can be plotted on the triangle as a

straight line from one apex to the opposite side. Such superimposed limit lines can

help to prioritize LTCs for maintenance or inspection.

42. 5.2. Points representing samples where any of TDHG, ethylene, or

acetylene exceeds its limit can be color-coded or plotted as a distinctive symbol.

Statistically defined limits for gas concentrations are still required for detecting

abnormally high gas concentrations.

43. 5.3. For exceptional resistive type LTCs, an extra N zone, defined

empirically or based on information provided by the manufacturer, can be plotted

on the triangle. Sample points falling well outside of both the standard and the

custom N zone represent cases that may need followup.

44. 5.4. For populations where the statistical procedure for deriving gas ratio

limits produces values known to be too conservative, the triangle defines (by the

boundaries of the N zone(s)) default limits. For example, the rightmost edge of the

N zone corresponds to an ethylene/acetylene ratio value of about 0.4, and the

leftmost edge to a value of about 0.1, below which abnormal D1 arcing can be

suspected.

45. 6. Summary of the hybrid approach proposed for consideration is as follows:

46.

47. 6.1. A modified statistical procedure that works for small and large LTC

populations can be used for defining gas concentration outlier limits.

48. 6.2. For small LTC populations, a similar modified procedure can be used

for defining gas ratio limits. For the ethylene/acetylene ratio, default limits of 0.4

and 1.0 can be used and adjusted as required for good performance. For

methane/acetylene and methane/ethylene, limits based on the boundaries of the N

zone can be used as defaults.

49. 6.3. Duval Triangle 2 is recommended for classifying DGA results as

acceptable or not and for detecting and interpreting trends and the general nature of

possible faults. Population-specific gas ratio limits superimposed on the triangle

can provide additional indication of how extreme the results are. For exceptional

LTC types, additional N zones can be superimposed on the triangle. The

boundaries of those zones can be obtained from [D2] or from the LTC

manufacturer, or defined empirically.

50. 6.4. For cases where the sample point lies in or near the N zone, it is still

necessary to consider whether acetylene, TDHG, or ethylene exceed a gas

concentration limit, which can indicate unusual operating frequency, high load, or

some kind of LTC problem that does not affect the gas ratios.

51. Discussion:

52. While there was not a quorum at this meeting, a poll was taken and the majority

of the attendees agreed that this hybrid approach should be pursued by preparing the text to

be included in the draft.

Dave indicated that after this version is published, he expects that it will need some time in

the industry to develop more users and to collect feedback.

53. There were no comments or discussion. Dave indicated that we would continue

on with additions to the document to present to the group at the next meeting.

54. Fredi Jakob indicated that the trending is the most significant item to look at.

He indicated that is what he would be more concerned with rather than looking at absolute

values. Fredi indicated that you can’t detect mechanical issues as they don’t have a DGA

signature.

55. George Forrest asked if there was going to be some logical application notes or

directions provided for how to use the guide. Dave W indicated that we need to be able to

serve all types of users, experienced and non-experienced so there should be some direction

provided for the non-experienced users.

56. The purpose of the guide is to give the user the tools to develop their own

guidelines or baselines for different LTC types.

57. Dave indicated that it is still unclear whether the triangle belongs in the main

body of the document or as an appendix. He will ask Jim Dukarm and Michel Duval for

their thoughts on this.

58. The plan for the Working Group going forward from Munich to the St. Louis

meeting is to:

a. Finish up Appendix D – Triangle (Wallach/Dukarm/Duval)

b. Add Appendix E – Nomogram (Jakob/Dukarm)

c. Create text and graphics to describe the hybrid approach discussed at the Munich

meeting

d. Generate draft and send to Working Group in advance of St. Louis meeting for

review and comments.

e. Resolve comments from Working Group

f. Straw ballot by Working Group for approval to begin ballot process

g. MEC & Legal Review

h. Form Ballot Pool

i. Ballot

Old Business

59. No old business was discussed.

New Business

60. No new business was discussed.

61. The meeting was adjourned at 11:56 am.

62. Dave Wallach, Chair

Mark Cheatham, Vice-Chair

Susan McNelly, Secretary

Working Group PC57.147, Guide for the Acceptance and Maintenance of Natural Ester Fluids in

Transformers

TF Chair: Patrick McShane, Vice-Chair: Clair Claiborne, Secretary: Jim Graham

The C57.147 WG Report Given at the Sub-Committee Meeting: Presented by Patrick McShane

The WG had 59 members and guests sign-in, and the quorum requirements were met. Only TF1 and

TF teams reported their progress, so a clear time line was determined, with the goal of publication of

the revised standard by 2016. Rainer Frotscher of MR stated that their testing results indicate a need

for a recommendation for fluids to determine significance and set limits to breakdown differentiation

due to relative streamer velocity. During discussion it was stated that the IEC does not have a

standard test method or requirement regarding streamers, and the issue doesn’t appear to be as

relevant for transformers with their designs avoiding highly non-uniform fields. An ad hoc

committee led by Rainier Frotscher was formed to research this issue, particularly as it may relate to

LTCs.

The WG had a lengthy discussion whether or not a 300º C fire point should be a part of the

requirements for continued use of service-aged natural ester insulating liquids (Table 5). Roberto

Asano made a motion which carried to remove the fire point properties from Table 5 and move this

information elsewhere within the guide. It was mentioned that insurance companies require

equipment filled with natural esters to have nameplates identifying the fluid as a natural ester and

meet the 300º C fire point and this requirement needs to be included in the guide.

The current standard (2008) is available at the IEEE TC web site in Word for WG members use to

make recommended revisions.

Minutes (unapproved) of the PC57.147 WG meeting as submitted:

PC57.147 March 18, 2013

Munich, Germany

Chair: Patrick McShane, Vice-Chair: Clair Claiborne, Secretary: Jim Graham

• Call to Order was made at 1:45 PM.

• Introductions/Membership Attendance/Quorum Check

• Attendance:

o 21 of 36 members present, quorum was achieved

o 38 guests

o total attendance = 59

o 8 guests requested membership

• A motion to approve the Fall 2012 minutes was made by David Sundin, seconded by Don

Cherry, and approved.

• Chair's Remarks, Patrick McShane:

• WG Time Line:

• Draft 1 – Ready for review at F13

• 1st Straw Vote – Between F13 and S14

• Draft 2 – Ready for review at F14

• 2nd Straw Vote - Between F14 and S15

• Final Draft Review and WG Vote - F15

• Initiate Ballot Pool (IEEE SA) - ASAP

• Ballot (IEEE SA)

• Ballot Resolution (BRG formed and complete task)

• Successful Vote (Mid Year 2016)

• Finalize Key Issues TF Final Reports

o Key Issues: New Item – streamer velocity and breakdown in non-uniform fields.

Rainer Frotscher of MR stated that their testing results indicate a need for a

recommendation for fluids to determine significance and set limits to breakdown

differentiation due to relative streamer velocity. According to Mr. Frotscher, Load

Tap Changers (LTCs) typically have some non-uniform fields. Transformer designs

on the other hand are designed to minimize non-uniformity. Asked if IEC has a

standard test for streamer velocity, the answer was no. He added there is no IEC

equivalent to ASTM D3300 impulse test either. Mr. Frotscher asked if the working

group could create design rules for the dimensioning of dielectric gaps for contacts

when using natural ester fluids. The WG Chair replied that SCIF scope is related to

insulating liquids and particulars on equipment design is outside its scope. After

some discussion, Raj Ahuja suggested adding a caution note about determining the

proper dielectric gaps for natural esters for non-uniform stress design. The Chair

added that transformer designs minimize non-uniform stress fields and no known

field issue has come to his attention. Also, if any significant abnormal field stress

should show up during routine power transformer production test, showing up as

partial discharge. An ad hoc committee led by Rainier Frotscher was formed to

research this issue, particularly as it may relate to LTCs.

• Task Force Reports

o Stephanie Denzer reported TF8 had met and submitted a revised draft of section 8.

The task force recommended removing Table 4, Test Limits for New Natural Ester

Fluids, and modifying Table 5, Test Limits for Service Aged Natural Ester Fluids.

The origin of the test limits used previously was questioned. The limits were copied

from C57.106.

o Don Cherry reported TF1 had met and submitted an updated draft of section 4 of the

guide. The changes recommended were too numerous to discuss in detail.

o The drafts received will be made available to the working group to review.

• Old Business

o All task force chairs were directed by the chair to prepare their recommended

revisions and submit them before the fall 2013 meeting

o WG officers will review the C57.93 installation guide to determine if any of the

items of interest for revision would be more appropriately addressed in the

installation guide.

• New Business

o Insurance companies require equipment filled with natural esters to have nameplates

identifying the fluid as a natural ester. A suggestion was made to address this

requirement in the guide.

o Roberto Asano made a motion to remove the fire point properties from Table 5 and

move this information elsewhere within the guide. Don Cherry seconded the

motion. After spirited debate, a motion was made by Jim Graham to close

discussion, seconded by Don Cherry. The motion to close discussion carried, and

Mr. Asano’s motion also carried.

• The meeting adjourned at 3:00 pm.

Respectively submitted,

Jim Graham, Secretary

PC57.155 Natural Ester and Synthetic Ester DGA Guide

Chair: Paul Boman, Secretary: John Luksich

The C57.155 WG Report Given at the Sub-Committee Meeting: Presented by Paul Boman

No quorum was present. The current draft will be circulated for comments for next two weeks, then a

straw ballot will issued, working on Draft 3. Insulating liquid terms will be included in Draft 3. There

was discussion on how to make the data summary table more acceptable. Claude Beauchemin

recommended rounding the values in the table, or it may be perceived to be more exact that the data

justifies. Freddie Jacobs recommended stating that the math is correct. Claude said that may be used,

but it is more an issue of psychology (perception of precision) than of technical correctness. After

discussion the consensus was that next revision will include the confidence interval for the table.

It was suggested that this guide could be a candidate for dual logo. Draft 2 included some unreferenced

documents in the normative reference section so those were moved to the bibliography. The Chair will

E-mail the IEC TC10 Chairman about the prospects of making C57-155 a dual logo document.

63. Minutes (unapproved) of the WG meeting as submitted:

64. Paul Boman– Chair, John Luksich - Secretary

65. Meeting Date: March 19, 2013 Time: 9:30 AM

66. Attendance: 12 members out of 57 members were in attendance, total attendance

was 48 and 2 people requested membership.

- Quorum not present

- Intend to approve minutes at next meeting with quorum

- review Spring 2011 minutes

Continued business

- Individual introductions

- Draft guide

- everyone received a copy (no hands raised when asked who did not receive it)

- resolution review group: Craig Stiegemeier, Jerry Murphy, Paul Boman, John Luksich

- asked everyone to check scope against draft to make sure all scope topics are addressed

- Comments to date 8 technical, 1 general and 17 Editorial

- some changes already made in draft 3

- “dielectric fluids” changed to “insulating liquids”

- moved the unused normative references to bibliography

- Jim Dukarm reviewed the C57.104 data to produce a statistical evaluation of ester data

- We should change “range” to “confidence interval”, as that’s what it really is

- Claude B suggested rounding table values to avoid a false sense of precision. Fredi J

suggested using scientific notation. Jesse questioned the confidence interval (95 percent).

Craig said rounding should be done, as it still gives a reasonable representation of the data.

- The next revision will include the confidence interval

- Should the document include some discussion of sample container handling? Fredi J said

D3016 should be referenced, as pertinent instructions are given there. It was noted that it’s

hard to control how the sample is handled. Appendix C discusses stray gases due to light

exposure.

- In Section 6.2.1, “annual sampling” was changed to “routine sampling frequency”. In

addition to baseline sampling, Rowland J. suggested that we add sampling after an event.

Another suggestion was sample after a change in equipment status. Jim G. asked if a

subsection should be added discussing re-energizing after an event. Some discussion of the

section’s title. Roberto questioned whether 6.2.1 was needed at all. Perhaps remove the

subsection and move everything up. Craig added that some discussion of establishing a

baseline be added.

General comments on content?

- Rainer F. noted that IEC 60422 has a discussion of sampling frequency.

- C57.152 should be included in the references

- We use three Duval triangles. Is that confusing? We cannot use trade names, so they are

labeled by base oil.

- Claude B. suggested that we show the differences in the three triangles, and that we should

check with M. Duval as he has refined them a bit.

- Patrick M. asked what IEC is doing on DGA of alternate fluids. No ongoing work. Paul B.

will inquire about dual logo. Claude noted that CIGRE has a working group.

The deadline for comments is April 2 (two weeks from today’s meeting).

Actions following Workgroup ballot include comment resolution and re-ballot if necessary.

The document is then sent for the MEC review and establishing a ballot pool within IEEE

SA Group.

Add as member:

Nick Perjanik

Jesse Inkpen

Send draft to:

Nick Perjanik (need Nick’s email)

Jesse Inkpen (sent)

End of meeting.

WG PC57.637 Guide for the Reclamation of Insulating Oil and Criteria for Its Use

WG Chair Jim Thomson, Vice-Chair TV Oommen

The C57.637 WG Report Given at the Sub-Committee Meeting:

There was no meeting held in Munich. The latest draft of the document was sent out for straw ballot to

the WG in early March. The straw ballot will close April 20.

TF on Particle Count Limits in Mineral Oil

67. Chair: Mark Scarborough, Vice-Chair T.V. Oommen, Secretary: Paul Boman

The TF Report given at the Sub-Committee Meeting:

There was no meeting held in Munich. The TF was tasked with writing a white paper on the results of the

research and survey done at the last meeting..

TF on Moisture in Oil

Chair: Bob Rasor

The TF Report given at the Sub-Committee Meeting: Presented by Bob Rasor:

68. There were 43 attendees at the meeting, however a quorum was not achieved. There were

three presentations given:

• Bob Rasor on a recent interesting field example of a “very wet” transformer

• Valery Davydov on moisture solubility, and how important it is to factor “solubility limit”

which is oil condition dependent. The more the oil is oxidized, the higher to potential over

estimation of moisture in the transformer.

• Oleg Roizman on the use of the EPRI color chart with on line sensors – resulting in his

creation of the moisture profile “cloud”.

The TF Meeting Minutes (unapproved) as Received:

Monday March 18, 2013

3:15 to 4:30 pm Munich, Germany

The meeting was called to order by Chair Bob Rasor at 3:15pm. There were 43 attendees. 18 of

the 63 members were present. Two requested membership.

Attendees requesting membership:

Roberto Asano

Jimmy Rasco

1. Roster was distributed

2. Introductions took place

3. A general discussion of the minutes to last meeting were discussed briefly but not

approved.

4. Scope was reviewed with a brief history of the TF.

5. Three presentations were given

i. Bob Rasor on a recent field example ii. Valery Davydov on the importance of a parameter call the Solubility

Limit (SL) of the oil

iii. Oleg Roizman on the use of the color chart with on line sensors – creation of the moisture profile “cloud”

6. TF has now met for the 7th time.

Bob Rasor presented for about 15 minutes with 5 slides of review and 5 slides from a case study

where a transformer was very wet and had been flagged by an elevated saturation. The water

content of the oil in PPM stayed acceptable but saturation was over 20% continually. It was odd

that the owner performed electrical testing and found it acceptable, yet as the photos in the slides

showed, a large amount of water had come in through a faulty bushing gasket and rusted the top of

the core steel and structures. Free water was also in the unit. Another clue the unit was wet was

the lack of pressure year after year – it had a nitrogen blanket preservation system.

A few questions about the case study followed that were just clarifications.

Dr. Valery Davydov next presented 11 slides. The content was about the importance of what is

called the Solubility Limit (SL) of the oil. The data demonstrated that oil with properties

normally associated with aging (significantly oxidized) has a different SL and therefore can

overstate an estimate of the moisture in the transformer as compared to new or un-oxidized oil.

The data included a case study and graphs showing the need to consider this parameter. Ignoring

the SL was represented to create a 100% error in the calculation of the oil ppm level and a 30%

error in estimating the moisture in the paper insulation.

A few questions resulted which Valery answered. One question was "How do you test for the SL

parameter". He answered there are labs that can provide this service and the values are then used

to correctly calculate the ppm level of moisture in oil using the on-line Relative Saturation and

Temperature data measured by the sensors.

Dr. Oleg Roizman next presented new information and data on the use of the EPRI color chart.

Shown previously, his first slide was to review the concept of the color chart and how it uses

temperature and ppm to indicate the condition of the insulation’s water content.

0

200

400

600

0 20 40 60 80

T, deg C

S(T), ppm

New Oil

Aged Oil

• Points on the chart with low temperatures and lower PPMs are considered less certain

than samples with higher temperatures and/or higher ppms.

• The time for the sample to reach equilibrium was also considered in the chart. Lower

temperatures and lower PPMs took a longer time period to reach equilibrium.

• With hundreds of samples from an on-line monitor, a plotting profile created what Oleg

referred to as a “cloud”. The cloud uses many, many data points and was presented as

an accurate estimation.

• The cloud exhibited an estimation for the already known moisture content in the winding.

The top portion of the curve is a “false high” that is a result of cooling oil (moisture

moves back into the insulation slower than it leaves). The location of the cloud on the

chart (more than its upper and lower limits) is its importance. It shows the moisture

content as very high (>3%), high (2-3%), questionable (1-2%) and dry(<1%)

• It was noted that the cloud for the same transformer showed lower moisture in the paper

when using the TOP sample valve for the sensor location as compared to the BOTTOM

valve. This is consistent with the accepted concept that the water content is highest in

the lower sections of the transformer.

A question was raised as to the type of the sensor and how the algorithm works for the cloud. The

sensor was from Visalia and the algorithm and its explanation are proprietary.

Another question was regarding the location of the probe for the bottom reading being in the

sample valve. It was thought this location was “stagnant” and known to yield inconsistent results.

The reply from Dr. Roizman was that this location is often reported to have temperature swings

representative of moving oil and therefore appropriate given the findings.

The Power Point for this presentation will be posted on the IEEE website.

A motion was made to end the meeting

Motion seconded.

Meeting was adjourned at 4:20 pm

Submitted by: Bob Rasor, Chair – TF Moisture in Oil

TF on Consolidation of Insulating Fluid Guides

Chair: Tom Prevost

The TF Report given at the Sub-Committee Meeting

No TF meeting was held in Munich. Susan McNelly apologized for not on getting a meeting time

slot for the TF. A meeting will be set up for the St. Louis Meeting in October.

Old Business:

• C57.121 Revision of the Less-Flammable Hydrocarbon Insulating Fluid Guide: A PAR

request for revision of this document will be submitted. This was approved at the Milwaukee

meeting. Dave Sundin has agreed to chair this effort. A meeting timeslot will be requested

for the Fall meeting in St. Louis.

• Status of data storage and confidentiality issue: Presented by Sue McNelly

Susan stated that she is working on a protocol for access to stored data. Tom Prevost will be

chairing and effort to deal with the confidentiality aspect. This issue has held up progress by

the work on C57.104.

New Business:

Review of membership guidelines for WGs and TFs: Presented by Sue McNelly

Susan reviewed the requirements for membership and the importance of maintaining rosters. She

also indicated that the WG and TF Chairs must keep regular tabs on attendance and keep the

membership status up to date in the IEEE TC AMS system. They should also assure that the

Secretary or Vice Chair note the names of members who make motions and second motions, and

report them in the meeting minutes.

Question by Bob Rasor to the Chair: Do the names of those who make comments during the

meeting need to be recorded? Answer: Not required, but it is recommended.

The Chair adjourned the meeting at 4:15PM

11.11 INSULATION LIFE SC – BRUCE FORSYTH

The Insulation Life Subcommittee met in Munich, Germany on March 21, 2013 at 8:00 AM. A hand count of the members at the beginning of the meeting revealed that 43 of 88 members were present. Since a quorum was not present the meeting minutes from Milwaukee could not be approved. The attendance rosters show that the meeting was attended by 115 people, 47 of 88 members and 68 guests. 14 guests requested membership. 11.11.1 Chair’s Report The Fall 2013 IEEE Transformers Committee Meeting will be held October 20, 2013 through October 24, 2013 in St. Louis, Missouri. The Spring 2014 meeting will be held March 23, 2014 through March 27, 2014 in Savannah, Georgia. Subcommittee Members were reminded of the need to avoid overt commercialization during the meetings. Company names should not appear in the meeting minutes. The Subcommittee membership requirements were reviewed.

• You must have attended 2 consecutive meetings and actively participate in order to be considered for membership.

• Existing members will be moved to guest status if they miss three meetings in a row. Once moved to guest status, former members will need to meet the requirements for new members.

• Guests will be removed from the roster if they miss 3 meetings in a row. The Chair reviewed the purpose and scope of the Subcommittee and encouraged the Task Forces and Working Groups to review their purpose and scope at the beginning of every meeting. The minutes for Activity Groups should record:

• The attendance including the number of members, the number of guests, and if a quorum was present

• The Chair or Acting Chair • The Secretary or Acting Secretary • The name of the member who makes a motion, the name of the Member who seconds

the motion, a restatement of the motion and if the motion carried or was defeated. • A summary of the discussion and comments.

The Transformers Committee is looking for tutorial topics. Please talk to your subcommittee Chair if you have any suggestions for technical presentations.

11.11.2 Project Status Reports 11.11.2.1 C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers C57.91 is valid until 2012. 11.11.2.2 C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution Transformers This standard is valid until 2021. 11.11.2.3 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. 11.11.2.4 C57.154 Design, Testing and Application of Liquid-Immersed Transformers with High-Temperature Insulation C57.154 is valid until 2023. 11.11.2.5 1276 Guide for the Application of High Temperature Insulation Materials in Liquid-Immersed Power Transformers The 1276 PAR expires in 2016. The standard is valid until 2018. 11.11.2.6 1538 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformers 1538 is valid until 2021. 11.11.3 Working Group and Task Force Reports 11.11.3.1 Task Force on Winding Temperature Indicators - Phil McClure The meeting was called to order at 8:00 am. There were 6 members and 22 guests in attendance. There are 8 members in the Task Force, so a quorum was achieved. Three guests requested membership and Bruce Forsyth and Emilio Morales, who attended the Fall 2012 meeting, will be welcomed to the group. Curiously, three guests who attended the Fall 2012 meeting and requested membership at that time, and also attended this meeting, did not request membership at this meeting. Those persons shall be contacted in case they forgot to put a check in the “request membership” box. The minutes of the Fall 2012 meeting in Milwaukee were emailed to the members before this meeting. The chair requested a motion for approval of the minutes and Dave Wallach made the motion. Gary Hoffman seconded the motion. The members voted approval and there were no abstaining or dissenting votes.

Old Business

There was no old business.

New Business

The experiment was modified since the last revision release. The final modern WTI was tested and added to the data pool. Some paragraphs were also added to the observations and conclusions section.

A discussion was had on how to introduce the results of the experiment, in order that they can be used as a reference for future documents and existing documents in the future. The key concept is peer review. In the past, specific content, formatting and size were required and publishing was subject to scheduling and space restrictions. This hurdle has in large part been removed by virtue of a new avenue for publishing papers and reports that has been adopted by the Transformers Committee. In essence, if a paper has been written by a chartered group within the Committee and has been approved by vote, the paper can be considered to be peer reviewed. Once the paper has been approved by the authoring activity and Insulation Life Subcommittee, it can be posted on the ILSC webpage. There are requirements that the paper adhere to the Committee’s O&P manual but these requirements should be easy to meet.

The next discussion dealt with what to do with the existing paper, which has been written over a period of many years, while we attempted through several avenues to get data to answer the charter question. The group voiced reaffirmed support for publishing the experiment first, then concern ourselves with follow-on actions. It was proposed to circulate the experiment to the group members and solicit comments and suggestions for changes. The Chair will append to those tasks. As a result of this discussion, the Chair requested a motion to bring the recommendations of the Task Force to a vote. Dave Wallach made the motion to complete and publish the experiment, then decide how to proceed. The motion was seconded by Josh Herz and all members present voted in favor of the motion.

A motion to adjourn was made by Dave Wallach and was seconded by Tim Rinks and the meeting was adjourned at 8:42 am.

Phil McClure Chair, Task Force on Winding Temperature Indicators

11.11.3.2 Task Force on Moisture In Insulation Systems – Tom Prevost Chair: Tom Prevost Vice-Chair: Valery Davydov The TF on Moisture in Insulating Systems met on Monday, March 18, 2013 at 11:00 AM with 107 people attending.

Introductions and statement of affiliation. Introduction of goals of the task force- Tom Prevost

• Develop Title, Scope ad Purpose of document • Create PAR for potential WG to be presented to Insulation Life Subcommittee Chair

Introduction of need for document- Valery Davydov • Valery Davydov gave a brief history of the task force and the need for a reference

document for moisture in insulation systems Development of Title, Scope and Purpose Statements for PAR

• Purpose of task force is to develop a title, scope and purpose statement for a Project Authorization Request (PAR) which will be introduced as a motion at the Insulation Life Subcommittee meeting.

• Concept is to request a PAR to be sponsored by Insulation life Subcommittee and submit to IEEE SA NESCOM so that PAR can be approved before next Transformers Committee meeting in St. Louis in October 2013.

Title: “Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors” Scope: This reference document applies to dry, gas insulated and liquid immersed transformers and reactors and addresses:

• Moisture related phenomena and parameters in transformers and reactors • The theory of moisture dynamics in solid-gas, solid-liquid and solid-liquid-gas insulating

physical complexes • Methods of assessment of moisture related parameters in solid-gas, solid-liquid and

solid-liquid-gas insulating physical complexes • The effects of moisture on operating transformers and reactors, and the risks associated

with these effects • The establishment of a baseline for each moisture related parameter • The tracking and interpreting of changes against the baselines throughout the life of the

transformer or reactor Purpose: This document recommends methods for:

• the assessment of moisture and moisture related phenomena in dry, gas insulated and liquid immersed transformers and reactors

• the establishment of a baseline for each moisture related parameter • the tracking and interpreting of the changes against the baselines throughout the life of

the unit The revised Title, Scope and Purpose were approved by the participants of the task force meeting. Following this vote the meeting was adjourned at 12:15 PM 11.11.3.4 Working Group for Temperature Rise Test Procedures Section 11 of C57.12.90 - Paulette Powell The Working Group met in the Alpsee room of the Dolce Hotel in Munich, Germany on Tuesday March 19, 2013 at 11am. Present were five (5) members and thirty-six (36) guests. We did not have a quorum. Four guests requested membership: Vir, Dharam of SPX Transformer Solutions; Jacobsen, Dallas of Schweitzer Engineering Labs; John, John of Virginia Transformer Corp; and Shannon, Michael of Rea Magnet Wire.

The minutes from the previous meeting in Milwaukee could not be approved due to the lack of quorum. The group was informed that clause 11.1.2.2, regarding the loading-back method, is currently in straw-ballot due to March 22. So far 15 votes (of 23 members) were received, all of them approved with just one minor editorial comment. There were no new business presented at the meeting. The chairman of the Insulation Life Subcommittee, Mr. Bruce Forsyth, asked the audience for new issues to be addressed by this group. He requested ideas to be reported to the WG chair. Mr Sanjib Som proposed to announce the search for new business at the Subcommittee level, and also by email to the larger group. The meeting adjourned at 11:15am. After the meeting, two individuals ( Jennifer Yu of PG&E Co.; and Dharam Vir of SPX Transformer Solutions) approached the vice-chairman, and stated they will send proposals to be considered as new business. Respectfully submitted, Juan Castellanos, Vice-Chair Marnie Roussell, Secretary 11.11.3.5 Working Group for Application of High-Temperature Materials IEEE P-1276

Mike Franchek, Chairman Roger Wicks, Secretary 11.11.3.5.1 Introduction and Rosters The working group met on Tuesday, March 19, 2013 at 3:15 PM with 9 members and 23 guests with 3 guests requesting membership. As our membership totaled 19 members prior to this meeting, a quorum did not exist during the meeting. 11.11.3.5.2 Chairman’s Remarks on WG Task The chair reviewed the topics of discussions held in Milwaukee during the last meeting of this working group, including a background on the original IEEE 1276 document and background paper as well as the development of the recently published IEEE C57.154. The minutes from that meeting provides the detail of this discussion and isn’t needed here. 11.11.3.5.3 Discussion related to the scope of the document. The chair reviewed the scope from the original document, including the comments from Revcom related to revisions (inclusion of temperature rises). This lead to good discussions related to the types of transformers (general consensus that it needs to be broader than just power transformers) and types of insulating fluid (general consensus that it needs to be broader than just mineral oil). Prior discussions and discussions during this meeting noted that loading should not be part of this document. The chair then proposed his draft of a revised scope for the document:

Proposed Scope – This guide applies to liquid-immersed distribution, power and regulating transformers that are designed to operate at high-temperatures according to IEEE Std C57.154-2012.

This scope seems to address much of the comments listed during the prior two meetings. However this modification led to a discussion about whether traction transformers or reactors should be included in the scope of this document. Additional topics which should be included in the document (not necessarily in the scope) included bubble emission, use of high temperature materials where the transformers are not operated at high temperatures (we will see with examples during the work of the revision on how to address this. Other comments involved discussion of oil temperature rise vs. average winding rise and it was noted that these would be discussed in the guide. The chair will try and determine how to address the units (like traction) which seem to be outside the scope of our IEEE document series. 11.11.3.5.4 Discussion related to the purpose of the document. The chair provided information related to the proposed purpose of the document, as follows:

Proposed Purpose – The purpose of this guide is to provide an informative technical background for the design, testing, and application of high-temperature transformers covered within its scope.

This led to a discussion related the need for this document with the completion of IEEE C57.154, which was previously discussed in Milwaukee. It was again noted that during the development of this document as well as the similar IEC 60076-14, there was quite a bit of “tutorial” type information which was removed since it wasn’t deemed appropriate for the standard. It was discussed that there was a lot of good information in 1276 that needs to be maintained and upgraded so that a revision is appropriate. 11.11.3.5.5 Revision of the Purpose and Scope Since a quorum of members was not present (at the end of the meeting a quorum call was held and only 8 members were present), the chair will circulate the draft scope and purpose to the working group members and guests within the next week, and would request the members to vote on these revisions within two weeks of when the note comes out. Our PAR expires in 2016, so we have time, but we need to work fairly quickly. 11.11.3.5.6 Old business There was no old business 11.11.3.5.7 New business There was a short discussion related to soliciting input (presentations) related to this guide that could provide input that could be used to update this guide. The chair will send out a separate note from the ballot soliciting input for our upcoming meeting in St. Louis. 5.8.3.5.7 Chair’s closing remarks

The chair closed the meeting at 4:05pm (in absence of a quorum a motion could not be made). 5.8.3.5.8 The meeting adjourned at 4:15 PM. Proposed Scope – This guide applies to liquid-immersed distribution, power and regulating transformers that are designed to operate at high-temperatures according to IEEE Std C57.154-2012. Proposed Purpose – The purpose of this guide is to provide an informative technical background for the design, testing, and application of high-temperature transformers covered within its scope. 11.11.4 Old Business: No old business. 11.11.5 New Business: 11.11.5.1 Tom Prevost made a motion to approve the Scope and Purpose to form a new Working Group. Since the motion came from a standing committee, a second was not required.

Title: “Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors” Scope: This reference document applies to dry, gas insulated and liquid immersed transformers and reactors and addresses:

• Moisture related phenomena and parameters in transformers and reactors • The theory of moisture dynamics in solid-gas, solid-liquid and solid-liquid-gas

insulating physical complexes • Methods of assessment of moisture related parameters in solid-gas, solid-liquid

and solid-liquid-gas insulating physical complexes • The effects of moisture on operating transformers and reactors, and the risks

associated with these effects • The establishment of a baseline for each moisture related parameter • The tracking and interpreting of changes against the baselines throughout the life

of the transformer or reactor A hand count of the members at this point in the meeting revealed that 45 of 88 members were present. Since a quorum was present, discussion on the motion was conducted. The discussion of the motion included the following points:

• Patrick McShane questioned the use of “Liquid Immersed” in the title. Don Platts responded that the use was appropriate based on the definition of “Liquid Immersed” in C57.12.80.

• Scott Digby asked if the title would include regulators. Tom Prevost responded that regulators are a subset of transformers.

• Don Lucil suggested the inclusion of “Power, Distribution, and Regulation” to the title. After some discussion, it was decided not to add these words to the title.

• Bill Chu was concerned the 4th bullet in the scope was an overlap/duplication of coverage.

• James Garner asked if this would take the place of C57.106, IEEE Guide for the Acceptance and Maintenance of Insulating Oil in Equipment. The response was that this will not take the place of C57.106.

• Raj Ahuja discussed the 3rd bullet in the scope, “moisture related parameters.” The final version of the title and scope are: Title: “Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors” Scope: This reference document applies to dry, gas insulated and liquid immersed transformers and reactors and addresses:

• Moisture related phenomena and parameters in transformers and reactors • The theory of moisture dynamics in solid-gas, solid-liquid and solid-liquid-gas insulating

physical complexes • Methods of assessment of moisture related parameters in solid-gas, solid-liquid and

solid-liquid-gas insulating physical complexes • The effects of moisture on operating transformers and reactors, and the risks associated

with these effects • The establishment of a baseline for each moisture related parameter • The tracking and interpreting of changes against the baselines throughout the life of the

transformer or reactor

Purpose: This document recommends methods for: • the assessment of moisture and moisture related phenomena in dry, gas insulated and

liquid immersed transformers and reactors • the establishment of a baseline for each moisture related parameter • the tracking and interpreting of the changes against the baselines throughout the life of

the unit The final version of the title and scope were approved unanimously. The work of the Task Force is complete. The work will be continued as a Working Group at the next meeting. 11.11.5.2 Raj Ahuja suggested that the temperature rise test procedure be revised to deal with symmetrical or double stack windings. The temperature calculations for the top and bottom windings should be governed by the hot spot temperature and the average rise of both windings. Dennis Marlow pointed out that this issue was addressed in C57.12.10 Clause 4.2.2. 11.11.6 The meeting adjourned at 9:15 AM. Bruce Forsyth Chair, Insulation Life Subcommittee

12 EDITOR’S REPORT – SANJIB SOM Between Fall 2012 meeting and Spring meeting of 2013 a total of 69 new & resubmitted papers in the transformer area were submitted to IEEE Transactions on Power Delivery for possible publication. For all of these papers the recommendations were as follows:

Accept: 8 Revise and Resubmit: 27 Reject: 26 Under Review 8

The above numbers include reviews managed by all editors. The 8 papers accepted for publication are shown below:

No Paper ID Title

1 TPWRD-00532-012.R4 Accelerating Dielectric Response Measurements on Power Transformers Part I: A Frequency Domain Approach

2 TPWRD-00430-012.R3 Measuring Paper Water Content of Transformers: A New Approach Using Cellulose Isotherms in Non-Equilibrium Conditions

3 TPWRD-00480-012.R2 Analysis of the Electrodynamic Forces in a Superconducting Saturated Core Fault Current Limiter under Short-Circuit Conditions

4 TPWRD-00401-012.R2 Post-mortem Investigation of Power Transformers - Profile of Degree of Polymerization and Correlation with Furan Concentration in the Oil

5 TPWRD-00629-012.R2 Duality-Synthesized Circuit for Eddy Current Effects in Transformer Windings

6 TPWRD-00574-012.R1 Current Status and future Trends in Frequency Response Analysis with Transformer in Service

7 TPWRD-00588-012.R2 Discrimination between Internal Faults and Other Disturbances in Transformer Using Support Vector Machine Based Protection Scheme

8 TPWRD-00723-012.R2 Analytical Calculation of Leakage Inductance for Low – Frequency Transformer Modeling

I would like to thank all of the reviewers who volunteered for this effort and donated their time, and would like to encourage everyone associated with IEEE Transformers Committee activities to consider becoming a Reviewer. I would like to encourage those Reviewers that already have an account on IEEE Manuscript Central to keep their profile information updated and complete the areas for key words and areas of interest. We need more reviewers and I encourage any of you that have not signed up as reviewers to sign up per the instructions at the end of this document. It is important for all interested individuals to follow the norm for writing papers as provided in IEEE; the link is http://www.ieee.org/publications_standards/publications/authors/authors_journals.html and the link to upload the paper is http://mchelp.manuscriptcentral.com/gethelpnow/training/author/. Please inform me at [email protected] as soon as you do sign up so that we are able to utilize your efforts.

• I would also like to take this opportunity to personally acknowledge the reviewers involved in the transformer committee who have been regularly and consistently reviewing papers. This is an important contribution since it maintains the high standards for our papers and it gives back to the industry their expert knowledge.

Special mention must also go out to the editors who have worked hard to make this possible; they are Dr Kulkarni, Francisco De Leon and Dr. Reza Iravani. Respectfully Submitted, Sanjib Som Editor, IEEE Transactions on Power Delivery

All members and attendees of the IEEE Transformer Committee are invited to review technical papers. Please sign up at: http://tpwrd-ieee.manuscriptcentral.com/

INSTRUCTIONS FOR SIGNING UP TO REVIEW IEEE TRANSACTIONS PAPERS

1. Before you create a new account, please check for an existing account by clicking on: "Check for Existing Account"

2. Assuming that you do not get an existing account notification email, click on "Create New Account" and enter in your information.

3. Please specify any “Specialty / Area of Expertise” according to the 5 numerical codes below:

13a: Power and Instrument Transformers

13b: Insulating fluids category

13c: Dielectric Testing

13d: Audible Noise and Vibration

13e: Transformer Modeling Techniques

13 LIAISON REPORTS

13.11 STANDARDS COORDINATING COMMITTEE ON ELECTRICAL INSULATION,

SCC NO. 4 – PAULETTE PAYNE POWELL

a) 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.

b) Standards:

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

Rating of Electrical Equipment and for the Evaluation of Electrical Insulation

• IEEE 98-2002 (R2007) 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

c) Current Activities:

• IEEE 98 – The goal is to reaffirm the standard by December 2015. The PAR has been

approved and the first draft is being prepared.

Anyone interested in joining the SC or WG activities should contact:

Paulette Payne Powell

Chairperson SCC 04 [email protected]

13.12 IEC TC14 CHAIR – PAUL JARMAN

IEC TC14 TECHNICAL ADVISOR TO USNC – PHIL HOPKINSON

TC 14 Meetings

• Last meeting Manchester UK 20-21st September 2012

• Next meeting Milwaukee 17-18th October 2013

Website WWW.IEC.CH/TC14 gives a summary of projects and publications

The website www.electropedia.org gives a comprehensive electrotechnical vocabulary

reference

New documents in development

• IEC 60076-19 Rules for the determination of uncertainties in loss measurement

– New technical report based in an existing CENELEC document

– Positive vote on draft , should be published in 2013

• IEC 60076-20 Energy efficiency

– Slow progress no draft yet, EU regulation in final stages.

– It has been agreed that there will be two documents >36kV and <=36kV.

Revisions in progress

• IEC 60076-3 Dielectric tests

– Final Draft for vote issued voting closes 3rd May

• IEC 60076-10 Determination of Sound Levels

– Comments received on first committee draft – expect draft for vote soon

• IEC 60076-10-1 Sound Level Application Guide

– Work started, first CD expected May

• IEC 60076-14 Transformers using high temperature insulation materials

– CDV circulated and recieved a positive vote

– final draft and publication expected soon

• IEC 61378-3 Converter transformers – Application Guide

– CD issued comments received Sept 2012

– Draft for vote expected soon

• IEC 60214 Tap changers

– First committee draft comments received

– CDV complete should be circulated in April

• IEC 60076-15 Gas Filled Transformers

– CD circulated

IEC TC14 / IEEE joint work

• IEC 60076-57-1202 Liquid Immersed Phase shifting Transformers

– First meeting held, next meetings Tuesday and Thursday in Munich

• EC 60076-16 Transformers for wind turbines

– joint revision of IEC document into dual logo

– Meeting Tuesday in Munich

• IEC 61378-2 HVDC converter transformers

– Agreed to start revision, possible joint work to produce dual logo

IEC TC14 proposals for new work

• Publish EN 50216 Transformer and Reactor Fittings as IEC documents

– Ad hock group recommended 3 parts

• Protective devices (alarms and trips)

• Cooling

• Accessories (passive)

Work yet to start

• TR60616 Terminal and tapping markings

– Proposal to issue as IEC 60076-9

• IEC 60076-7 Loading Guide

– Propose to start revision, convenor appointed first meeting in June

13.13 CIGRE – RAJ AHUJA

The Transformer Committee (SC A2)

Scope : Design, construction, manufacture and operation for all kinds of power transformers, including

industrial , DC converters and phase-shift transformers and for all types of reactors and transformer

components (bushing, tap-changer…)

In the past ( known as SC12 ) activities were focussed on design problems related to the rapid increase

of rated voltage and power

Today, the two Strategic Directions for A2 future activities are :

• Services to Customers ( Reliability, Life management, Economics, Tutorials, ...)

• Technology Issues (Safety, New technologies and New concepts, Electrical environment, Pre-

standardisation work, ...)

Chairman: Claude Rajotte (CA), Secretary: Patrick Picher (CA)

SC A2 Key domains The Life Cycle

Specifications, procurement & economics

Design, manufacturing & testing

Operation, reliability, safety & environment

Maintenance, diagnostics, monitoring, & repair

Present SC A2 Activities

• 24 regular members

• 19 observer members

• 9 WG's and 3 JWG's

• 272 experts from 39 countries

• 5 AG’s

A2 USNC Member – Raj Ahuja ( SPX Transformers Inc.)

Scope : Design, construction, manufacture and operation for all kinds of power transformers, including

industrial , DC converters and phase-shift transformers and for all types of reactors and transformer

components (bushing, tap-changer…)

In the past ( known as SC12 ) activities were focussed on design problems related to the rapid increase

of rated voltage and power

Today, the two Strategic Directions for A2 future activities are :

• Services to Customers ( Reliability, Life management, Economics, Tutorials, ...)

• Technology Issues (Safety, New technologies and New concepts, Electrical environment, Pre-

standardisation work, ...)

Present SC A2 Working Groups

WG A2-33: Fire Safety – Published in Dec 2012

WG A2-36: Guide for Transformer Procurement

WG A2-37: Transformer Reliability Survey

WG A2-38: Transformer Thermal Modelling

WG A2.40: Copper sulphide long-term mitigation and risk assessment

WG A2.42: Guide on transformer Transportation

WG A2.43: Transformer bushings reliability

WG A2.44: Transformer Intelligent Condition Monitoring

WG A2.45: Transformer Failure Investigation and post-mortem Analysis

JWG A2/C4.39: Electrical Transient Interaction betweentransformers and the Power System

JWG A2/D1.41: Oil conductivity under DC condition

JWG A2/D1.46: Field experience with transformer solid insulating ageing markers

WG A2-33 -Fire Safety (A. Petersen/AU) Guide approved for Publishing in Nov. 2012

• Avoidance of tank rupture

• Precaution to fire victim

• Precautions to fire origin

WG A2-36 Guide for Transformer Procurement (T. Breckenbridge / UK) Guide approved for

Publishing in Nov. 2012

• Capability assessment of transformer manufacturers

• Evaluation of technical competence and experience

• Review and update of the existing CIGRE A2 documents on procurement

WG A2-37 Transformer Reliability Survey (S. Tenbohlen/DE)

• Review all existing national surveys and study different practices ; identify best practices

• Compile and present the information available in these national survey reports

• Make recommendations to improve the situation

WG A2-38 Transformer Thermal Modelling (J. Lapworth/UK)

• Describe the state of the art techniques in transformer thermal modelling to evaluate winding

hottest spot as well as hot spots on other metallic parts

• Examples of application of hottest spot direct measurement and best practices

• Recommendation for improvement of standards

JWG A2/C4.39 - Electrical Transient Interaction between transformers and the Power System

(A.Rocha/BR)

• Assess and discuss the different types of electrical transient interaction

• Discuss the general increase in transformer dielectric failures in the system.

WG A2.40 - Copper sulphide long-term mitigation and risk assessment (J. Lukic/RS)

• Method, tools and diagnostic

• Metal passivator stability and efficiency

• Efficiency of existing on-site oil treatment

JWG A2/D1.41 - Oil conductivity under DC condition (A. Küchler/DE)

• Started under recommendation of WG A2/B4.28

• Review techniques and standards for measurement of conductivity of liquids

• Suggestions for new standards

WG A2.42 - Guide on transformer Transportation (A. Mjelve/NO)

• Typical conditions/forces during transport

• Specifications and design review

• Requirements on transportation issues

WG A2.43 Transformer bushings reliability (A. Mikulecky/HR)

• Bushing failure definition

• Failure mechanisms for OIP, RBP, RIP

• Bushings failure rate

• Predicted life time, maintenance, diagnostic

WG A2.44 – Transformer Intelligent Condition Monitoring (C. Dupont/BR)

• Conversion of data to relevant info.

• Demonstration of benefits

• Hardware/software/data integration

WG A2.45: Transformer Failure Investigation and post-mortem Analysis (C. Kuen/AT)

• Important information to collect

• Availability and significance of design data

• Documentation during the dismounting

• Paper sampling: how, where, precautions

JWG A2/D1.46: Field experience with transformer solid insulating ageing markers (R. Mertens/BE)

• Field cases: correlation between chemical markers and DP

• Design information relevant to ageing markers models

• Consideration of operation and maintenance records

• Influence of oil sampling conditions (ex: temperature

Recent Brochures & Future activities

Recent Brochures Ref Year

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

Guide on Transformer Maintenance 445 2011

Guide on Transformer Safety Practices 2012

Future Activities:

• Shunt Reactor – Started in Jan. 2013

• Transformer health index

• Spare transformer policy

• Efficient and eco-design transformers

• Experience with utilisation of transformers in FACTs

Recent/Future SC A2 Sessions & Colloquium

Paris 2012 Preferential Subjects

• Transformer for the network of the future

• Transformer Eco design / Eco use

• Transformer magnetic circuit

Colloquium 9/8 – 9/14/ 2013: Zurich, Switzerland Joint Colloquium A2/C4

• Interaction between transformer and the Power System

• Experience with the use of Phase-Shifting transformers

• Network planning in the context of an ageing transformer fleet

45th CIGRE Session 8/24 -8/29/2014 in Paris

• PS1 > Best practices for asset management: Health index as a tool for condition assessment and

applications of transformer fleet ranking by condition and criticality.

• PS2 > Transformers for specialized applications: Application of phase-shifting, converter,

industrial and offshore/sub sea transformers, variable shunt reactors and other specialized

designs.

• PS3 > Field experience with the use of non-conventional materials and technologies:

Transformer experience with alternative insulating liquids, gas and solids, improved winding and

core material and technologies. Experience with new technologies for components. High-

Temperature Superconducting (HTS) transformer experience and applications.

Call For Papers:

• Synopsis for Technical Papers: 4/5/13

• Approval of Synopsis: 9/10/13

• Submit Final Paper : 1/10/14

14 UNFINISHED (OLD) BUSINESS

14.11 NONE

15 NEW BUSINESS

15.11 This is not really an item of new business but Patrick McShane announced the

recent publication of IEEE SA 979-2012 Guide for Substation Fire Protection, which

is sponsored by the IEEE/PES Substation Committee. It was last published in 1994,

so there have been significant revisions due to the improvements in fire protection

technology. Since transformers are a principal source of substation fires, Patrick

thought that this new guide would be of interest to all in attendance at the

Transformers Committee meeting. The WG E3 for Standard Guide 979 will be

meeting during the next IEEE/PES Substation Committee meeting in Pittsburgh April

28-May2. The WG E3 agenda will include idea collection for the next revision.

15.12 Craig Colopy asked about the possibility of adopting IEC 20214-1 On Load Tap

Changers as a dual logo for replacement of the IEEE C57.131. This issue will be

handled by the Power Transformers Subcommittee.

16 MEETING SCHEDULE

See attached.

page 1

INITIAL ISSUE – February 5

IEEE/PES TRANSFORMERS COMMITTEE www.transformerscommittee.org Spring 2013 Meeting; March 17-21

Hosted by Reinhausen Manufacturing, Inc. Dolce Munich Unterschleissheim Hotel; Munich, Germany

NOTES: See Page 4 for a key to abbreviations. A vertical line in the left margin indicates a noteworthy revision since last revision. DATE/TIME

ACTIVITY

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MEETING ROOM

Saturday, March 16 No Meeting Registration, No Transformers Committee Meetings 6:30 pm to ~10:30 pm Early Bird Event: Dinner, music and fun at Altes Schulhaus.

-- Indicate your desire to attend when registering on-line for the Committee Meeting. Limited attendance! -- Gather in hotel lobby. Bus departs Dolce Hotel at 6:30 pm. Bus returns to hotel at approx 10:30 pm.

Sunday, March 17 No NEMA Meeting. EL&P Delegation Meeting moved to Tuesday morning. 10:00 am 2:00 pm, 4:30 pm

Sunday Program: Tours of MR Factories and/or Historic Regensburg -- Buses depart Dolce Hotel at 10:00 am, 2:00 pm and 4:30 pm.

8:00 am - 3:00 pm Meeting Registration 10:00 am 1st set of buses depart for Regensburg. See flier for more information.

-- Factory Tours: MR Regensburg and MR Haslbach (lunch at factory) -- Historical Regensburg Tour -- Welcome Reception

10:00 am - 1:30 pm Administrative SC -- with working lunch -- closed meeting, by invitation only

Admin B. Chiu 25 US Bodensee I (1F)

2:00 pm 2nd set of buses departs for Regensburg. See flier for more information. -- Factory Tour: MR Regensburg or MR Haslbach (indicate which tour you desire when you register on-line) -- Welcome Reception

4:30 pm 3rd set of buses departs for Regensburg (directly to Welcome Reception) 6:00 pm - 8:30 pm Welcome Reception: at the Fürstliches Brauhaus, Regensburg (in Regensburg, not in the Dolce Hotel)

-- Indicate desire to attend reception when you register on-line. Casual dress recommended. -- Buses return to Dolce Hotel between 9:00 pm and 10:00 pm.

Monday, March 18 -- Monday Breaks Sponsored by Prolec-GE ** No Distribution SC Leaders Coordination Breakfast 6:30 am - 10:00 am Breakfast - Attendees & Spouses/Companions Viktualien (hotel restaurant) 7:00 am - 4:00 pm Meeting Registration Ballhausforum, Platzl 1 7:00 am - 6:00 pm Internet Cafe' 12 BR Spitzingsee (1F) 7:00 am - 7:50 am Newcomers Orientation (arrive early!)

-- Newcomers & Guests are encouraged to attend! -- Breakfast will be served in the room.

D. Platts 50 CL Alpsee (0F)

9:30 am - 3:45 pm Note Depart Time!

Spouses/Companions Tour: Munich City Tour. Includes lunch. -- Advance registration required. Buses depart the Dolce at 9:30 am, and return approx 3:45 pm.

8:00 am - 9:15 am > General Session, Transformers Committee (Part 1) -- See separate document for meeting agenda. -- Session continued on Thursday morning. -- All attendees are encouraged to attend.

B. Chiu 200 CL S1 100 TH

Ballhausforum Auditorium (-1F)

9:15 am - 9:30 am Break E-Coffee Areas (0F and 1F) ** Contact Joe Watson ([email protected]) if you are interested in sponsoring a coffee-break at a future meeting.

page 2

DATE/TIME

ACTIVITY

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MEETING ROOM

Monday, March 18 (continued) 9:30 am - 10:45 am WG 3-ph UG Dist. Transf. C57.12.24 UTNP G. Termini 60 MX Bodensee I (1F) 9:30 am - 10:45 am WG Distr. Substation Transf. C57.12.36 Dist J. Murphy 60 MX Bodensee II (1F) 9:30 am - 10:45 am TF External Dielectric Clearances DiTests E. Davis 100 MX Ammersee I (0F) 9:30 am - 10:45 am WG Tertiary/Stabiliz. Windings PC57.158 PCS E. Betancourt 100 MX S3 Ammersee II (0F) 9:30 am - 10:45 am TBD 140 MX S3 Chiemsee (1F) 9:30 am - 10:45 am WG Failure Analysis & Report. C57.125 Power W. Binder 160 MX S3 Alpsee (0F) 10:45 am – 11:00 am Break E-Coffee Areas (0F and 1F) 11:00 am - 12:15 pm WG Liquid-immersed Secondary Network

Transformers C57.12.40 UTNP B. Klaponski 60 MX Bodensee I (1F)

11:00 am - 12:15 pm WG Overhead Distr. Transf. C57.12.20 Dist A. Traut 60 MX Bodensee II (1F) 11:00 am - 12:15 pm WG Installation of Power Transf. C57.93 Power M. Lau 100 MX Ammersee I (0F) 11:00 am - 12:15 pm WG PCS Rev. to Test Code C57.12.90 PCS M. Perkins 100 MX S3 Ammersee II (0F) 11:00 am - 12:15 pm WG Tank Rupture & Mitigation PC57.156 Power P. Zhao 140 MX S3 Chiemsee (1F) 11:00 am - 12:15 pm TF Moisture in Insulating Systems IL T. Prevost 160 MX S3 Alpsee (0F) 12:20 pm - 1:30 pm Lunch Meeting: Standards Development Review B. Bartley 200 RT (8/tbl) Auditorium -- Special Presentation: "Procedures for Harmonizing IEEE/IEC Projects"

-- Doors open ~12:10 pm. Come early, get a good seat, and start eating. -- Everyone is welcome to attend. All SC/WG/TF leaders are highly encouraged to attend. -- Advance reservation required. No paper tickets. Admission verified at the door.

WG 1-phase Padmount C57.12.38 Dist Will not meet. 1:45 pm - 3:00 pm WG Standard Require for Secondary

Network Protectors C57.12.44 UTNP B. Wimmer 60 MX Bodensee I (1F)

1:45 pm - 3:00 pm WG Dry-Type Gen. Require. C57.12.01 Dry T. Holdway 60 MX Bodensee II (1F) 1:45 pm - 3:00 pm WG Functional Life Tests, De-energized

Tap Changers (DETC) PC57.157 Power P. Hopkinson 100 MX Ammersee I (0F)

1:45 pm - 3:00 pm WG Tank Pressure Coordinat. C57.12.39 Dist C. Gaytan 100 MX S3 Ammersee II (0F) 1:45 pm - 3:00 pm TF Audible Sound Revision to Test Code PCS R. Girgis 140 MX S3 Chiemsee (1F) 1:45 pm - 3:00 pm WG Natural Ester-based Fluids C57.147 IF P. McShane 160 MX S3 Alpsee (0F) 3:00 pm - 3:15 am Break E-Coffee Areas (0F and 1F) 3:15 pm - 4:30 pm SC HVDC Converter Transformers and

Smoothing Reactors HVDC M. Sharp 60 MX Bodensee I (1F)

3:15 pm - 4:30 pm WG 3-ph Padmount Distribution Transformers C57.12.34

Dist R. Stahara 60 MX Bodensee II (1F)

3:15 pm - 4:30 pm WG PCS Revisions to C57.12.00 PCS S. Snyder 100 MX Ammersee I (0F) 3:15 pm - 4:30 pm WG Dielectric Frequency Response DiTests A. Naderian 100 MX S3 Ammersee II (0F) 3:15 pm - 4:30 pm WG Transformers Directly Connected

to Generators PC57.116 Power G. Hoffman 140 MX S3 Chiemsee (1F)

3:15 pm - 4:30 pm TF Moisture in Oil IF B. Rasor 160 MX S3 Alpsee (0F) tours begin at 5:00 & 6:00 pm

Technical Tour 2A & 2B: BMW World (BMW Museum is closed on Monday). -- Limited attendance. Indicate your desire to attend when registering for the meeting. Small fee to attend. -- Paper tickets are not provided. Admission verified with a registration list as you board the bus. -- Gather in hotel lobby. Buses depart the Dolce promptly at 4:30 & 5:30 pm. See flyer for more information.

page 3

DATE/TIME

ACTIVITY

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ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Tuesday, March 19 -- Tuesday Breaks Sponsored by SGB-SMIT 6:30 am - 10:00 am Breakfast - Attendees & Spouses/Companions Viktualien (hotel restaurant) 7:00 am - 12:00 pm Meeting Registration Ballhausforum, Platzl 1 7:00 am - 6:00 pm Internet Cafe' 12 BR Spitzingsee (1F) 7:00 am - 7:50 am EL&P Delegation (breakfast meeting, arrive early)

-- End-users only please J. Murphy existing set Redox (adjacent

to hotel restaurant) 8:30 am - 5:15 pm Note Depart Time!

Spouses/Companions Tour: Neuschwanstein Castle & Fuessen. Includes lunch. -- Advance registration required. Buses depart the Dolce at 8:30 am, and return approx 5:15 pm.

WG Enclosure Integrity C57.12.28 et al Dist Will not meet. WG Oil Reclamation Guide PC57.637 IF Will meet during Spring Meeting. 8:00 am - 9:15 am WG Req. for Instrument Transf. C57.13 IT R. McTaggart 60 MX Bodensee I (1F) 8:00 am - 9:15 am TF Winding Temperature Indicators IL P. McClure 60 MX Bodensee II (1F) 8:00 am - 9:15 am WG DPV Grid Transformers C57.159 PCS H. Shertukde 100 MX Ammersee I (0F) 8:00 am - 9:15 am WG PC57.152 Field Test Guide Stds J. Verner 100 MX S3 Ammersee II (0F) 8:00 am - 9:15 am WG Oil Accept & Maint. Guide C57.106 IF B. Rasor 140 MX S3 Chiemsee (1F) 8:00 am - 9:15 am > WG Wind Power Transf. PC57.12.16 PCS D. Buckmaster 160 MX S3 Alpsee (0F) 9:15 am - 9:30 am Break E-Coffee Areas (0F and 1F) 9:30 am - 10:45 am WG Dry-Type O&M Guide C57.94 Dry D. Stankes 60 MX Bodensee I (1F) 9:30 am - 10:45 am WG Std Require. for Bushings C57.19.01 Bush A. Del Rio 60 MX Bodensee II (1F) 9:30 am - 10:45 am WG Bar Coding for Distribution

Transformers C57.12.35 Dist L. Matthews 100 MX Ammersee I (0F)

9:30 am - 10:45 am WG Revisions to Impulse Test Sections of C57.12.00 and C57.12.90

DiTests P. Riffon 100 MX S3 Ammersee II (0F)

9:30 am - 10:45 am WG DGA Natural & Synthetic Fluids PC57.155

IF P. Boman 140 MX S3 Chiemsee (1F)

> 9:30 am - 10:45 am WG Wind Power Transf. PC57.12.16 PCS D. Buckmaster 160 MX S3 Alpsee (0F) 10:45 am - 11:00 am Break E-Coffee Areas (0F and 1F) WG Impulse Tests C57.138 Dist Will not meet. Balloting document. 11:00 am - 12:15 pm WG Milli-amp Current Transf. C57.13.7 IT H. Alton 60 MX Bodensee I (1F) 11:00 am - 12:15 pm WG Phase Shifting Transformers

IEEE/IEC 60076-57-1202 (continued into Thursday afternoon)

Power R. Ahuja 60 MX Bodensee II (1F)

11:00 am - 12:15 pm WG Loss Evaluation Guide C57.120 PCS A. Traut 100 MX Ammersee I (0F) 11:00 am - 12:15 pm TF PD in Bushings and PTs/CTs DiTests T. Hochanh 100 MX S3 Ammersee II (0F) 11:00 am - 12:15 pm WG Guide for DGA in LTCs C57.139 IF D. Wallach 140 MX S3 Chiemsee (1F) 11:00 am - 12:15 pm WG Temperature Rise Test Procedures

in Section 11 of C57.12.90 IL P. Powell 160 MX S3 Alpsee (0F)

12:20 pm - 1:30 pm Awards Luncheon E. Smith 250 RT (9/tbl) Ballhausforum -- Everyone welcome, but advance registration is necessary.

-- Doors open ~12:10 pm. Come early, get a good seat, and start eating. -- Paper tickets are not provided. Admission verified at the door.

Auditorium (-1F)

WG DGA Factory Temperature Rise Tests PC57.130

IF Will not meet. Performing straw ballot of document.

1:45 pm - 3:00 pm TBD 60 MX Bodensee I (1F) 1:45 pm - 3:00 pm WG GSU Bushing Standard PC57.19.04 Bush C. Arpino 60 MX Bodensee II (1F) 1:45 pm - 3:00 pm WG Revision to Low Frequency Tests DiTests B. Poulin 100 MX Ammersee I (0F) 1:45 pm - 3:00 pm TF Dielectric Fluids Terms Normalization Stds P. McShane 100 MX S3 Ammersee II (0F) 1:45 pm - 3:00 pm WG Life Extension C57.140 Power R. James 140 MX S3 Chiemsee (1F) 1:45 pm - 3:00 pm TF Transformer Efficiency and

Loss Evaluation (DOE Activity) Dist P. Hopkinson 160 MX S3 Alpsee (0F)

3:00 pm - 3:15 pm Break E-Coffee Areas (0F and 1F)

page 4

KEY Note: A PC projector is furnished in each meeting room. Arrive early to ensure that equipment operates/syncs correctly. > = activity continued into another session / from another session CL = classroom seating (w/head table) ++ = not a Transformers Committee activity TBD = To Be Determined TH = theater seating (w/head table) S1 = sound (special set-up) S2 = stand mic in front only MX = mix classroom & theater (w/head table) S3 = one stand mic in front, and stand mic(s) at mid-room RT = multiple roundtables FC = flip chart US = U-shape table BR = boardroom DATE/TIME

ACTIVITY

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Tuesday, March 19 (continued)

WG Test Data Reporting C57.12.37 Dist Will not meet. 3:15 pm - 4:30 pm WG Dry-Type Loading Guide PC57.96 Dry R. Marek 60 MX Bodensee I (1F) 3:15 pm - 4:30 pm WG Neutral Grounding Devices PC57.32 PCS S. Kennedy 60 MX Bodensee II (1F) 3:15 pm - 4:30 pm WG Application of High-Temp Insulation

Materials, IEEE P-1276 IL M. Franchek 100 MX Ammersee I (0F)

3:15 pm - 4:30 pm WG Transf. Paralleling Guide PC57.153 Power T. Jauch 100 MX S3 Ammersee II (0F) 3:15 pm - 4:30 pm WG Revision to Gas Guide C57.104 IF R. Ladroga 140 MX S3 Chiemsee (1F) 3:15 pm - 4:30 pm TF Switching Transients Induced by

Transf/Breaker Interaction C57.142 PCS J. McBride 160 MX S3 Alpsee (0F)

4:45 pm - 6:00 pm IEC TC-14 Technical Advisory Group (all interested individuals welcome)

++ P. Hopkinson 160 MX S3 Alpsee (0F)

tours begin at 4:00 & 4:15 pm

Technical Tour 3A & 3B: BMW Museum (BMW World is closed on Tuesday). -- Limited attendance. Indicate your desire to attend when registering for the meeting. Small fee to attend. -- Paper tickets are not provided. Admission verified with a registration list as you board the bus. -- Gather in hotel lobby. Buses depart the Dolce promptly at 3:30 & 3:45 pm. See flyer for more information.

Wednesday, March 20 -- Wednesday Breaks Sponsored by ZTZ Services International ** No Meeting Registration, No Technical Tours, No Spouse/Companion Tour 6:30 am - 10:00 am Breakfast - Attendees & Spouses/Companions Viktualien (hotel restaurant) 7:00 am - 6:00 pm Internet Cafe' 12 BR Spitzingsee (1F) 7:00 am - 7:50 am SC Meetings Planning Meetings G. Anderson 15 special set

w/projector Redox

8:00 am - 9:15 am SC Instrument Transformers IT R. McTaggart 100 CL S3 Alpsee (0F) 8:00 am - 9:15 am SC Insulation Life IL B. Forsyth 250 MX S3 Ammersee (0F)

9:15 am - 9:30 am Break Ballhausforum Platzl & E-Coffee Area (0F only)

9:30 am - 10:45 am SC Bushings Bush P. Zhao 100 CL S3 Alpsee (0F) 9:30 am - 10:45 am SC Distribution Transformers Dist S. Shull 250 MX S3 Ammersee (0F) 10:45 am - 11:00 am Break Platzl & E-Coffee Area (0F) 11:00 am - 12:15 pm SC UG Transf. & Network Protectors UTNP C. Niemann 100 CL S3 Alpsee (0F) 11:00 am - 12:15 pm SC Dielectric Tests DiTests M. Franchek 250 MX S3 Ammersee (0F) 12:15 pm - 1:30 pm "Standing Lunch" (included in registration fee) special set-up Ballhausforum

Platzl (0F) 1:30 pm - 2:45 pm SC Dry Type Dry C. Johnson 100 CL S3 Alpsee (0F) 1:30 pm - 2:45 pm SC Power Transformers Power J. Watson 250 MX S3 Ammersee (0F) 2:45 pm - 3:00 pm Break Platzl & E-Coffee Area (0F) ** Contact Joe Watson ([email protected]) if you are interested in sponsoring a coffee-break at a future meeting.

page 5

DATE/TIME

ACTIVITY

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ACTIVITY CHAIR

ROOM CAP/ARR/AV

MEETING ROOM

Wednesday, March 20 (continued) 3:00 pm - 4:15 pm SC Insulating Fluids IF S. McNelly 100 CL S3 Alpsee (0F) 3:00 pm - 4:15 pm SC Performance Characteristics PCS E. teNyenhuis 250 MX S3 Ammersee (0F) 4:15 pm - 4:30 pm Break Platzl & E-Coffee Area (0F) 4:30 pm - 5:30 pm SC Standards Stds B. Bartley 250 MX S3 Ammersee (0F) 5:30 pm - 10:30 pm

Dinner Social: Deutsch Verkehrsmuseum (Transportation Museum). Advance registration necessary. -- Buses begin loading at Dolce at 5:30 pm (approx 45-min drive to musuem). Last bus departs at 6:15 pm. -- Buffet dinner served at 8:00 pm. Exhibits also open after dinner (Hall 1 only). -- Buses begin shuttling back to the Dolce at 9:30 pm. Last bus departs approx 10:30 pm. -- Paper tickets are not provided. Admission verified with a registration list as you enter the museum.

Thursday, March 21 No Meeting Registration, No Internet Cafe' 6:30 am - 10:00 am Breakfast - Attendees & Spouses/Companions Viktualien (hotel restaurant) 8:00 am - 9:15 am Technical Presentation #1: "Direct Measurement of Winding Hot Spot

with Fiber Optic Probes", by R. Girgis, H. Nordmann and others. Sponsored by IL SC. See abstract flyer on website. ***

200 CL S1 100 TH


~ 9:15 am - 9:30 am Break Platzl & E-Coffee Area (0F) 9:30 am - 10:45 am Technical Presentation #2: "A Review of the Updated Guide for

Diagnostic Field Testing, IEEE C57.152 (Formally IEEE 62)", by J. Verner, K. Yule and others. Sponsored by Standards SC. See abstract flyer on website. ***

200 CL S1 100 TH


10:45 am - 11:00 am Break Platzl & E-Coffee Area (0F) > 11:00 am - 12:00 pm General Session, Transformers Committee (Part 2)

-- Session continued from Monday morning. -- All attendees are encouraged to attend. -- See separate document for meeting agenda.

B. Chiu 200 CL S1 100 TH


12:00 pm - 1:30 pm "Standing Lunch" (included in registration fee) special set-up Ballhausforum Platzl (0F)

> 1:00 pm - 5:00 pm WG Phase Shifting Transformers IEEE/IEC 60076-57-1202 (continued from Tuesday morning)

Power R. Ahuja 20 CL Ammersee II (0F)

1:00 pm- 8:00 pm (approx return time)

Technical Tour 4: Siemens Transformer Factory, Nuremberg -- By invitation only. Siemens will send invitations separately. -- For more details, contact Carolin Gorzolla at <[email protected]>.


Technical Tour 5: SGB-SMIT Transformer Factory, Regensburg -- By invitation only. SGB-SMIT will send invitations separately. -- For more details, contact Ruth Dudenhöffer at <[email protected]>.


Special Tour: Munich Sightseeing & Bavarian "Schmankerl" Tour (for attendees & spouses/companions) -- Indicate your desire to attend when registering for the meeting (fee to attend). -- Bus departs the Dolce Hotel at 1:30 pm, and returns at approx 5:30 pm. See flyer for more information.

Friday, March 22 No Transformer Committee Meetings, No Internet Cafe' 8:30 am - 6:30 pm Optional Day Tour: Discover Salzburg. Includes lunch.

-- Indicate your desire to attend when registering for the meeting (fee to attend). -- Bus departs the Dolce Hotel at 8:30 am, and returns at approx 6:30 pm. See flyer for more information.

*** Contact Tom Prevost ([email protected]) if you are interested in making a technical presentation at a future meeting. FUTURE COMMITTEE MEETINGS Fall 2013 - October 20-24; St. Louis, Missouri USA. Hosted by H-J Enterprises. Spring 2014 - March 23-27; Savannah, Georgia USA. Hosted by EFACEC. Fall 2014 - October 19-23 or 26-30; location to be determined Spring 2015 - April 12-16; location to be determined

page 6

Dolce Munich Unterschleissheim Andreas-Danzer-Weg 1; 85716 Unterschleißheim, Germany

+49 (0)89 370 530 0

- Page 1 of 23-

IEEE / PES /TRANSFORMERS COMMITTEE

SSttaannddaarrddss RReeppoorrtt To: Members of IEEE Transformers Committee Date: March 6, 2013 From: William H. Bartley, Standards Coordinator Executive Summary This report covers the Transformers Committee Standards activity for the five-month period of October 1, 2012 to March 6, 2013. In the last five months, 6 new Standards and 1 Revision were approved by Standards Board /REVCOM. In this same period, Standards Board /NESCOM approved 1 PAR for a new standard; 2 PARs for Corrigenda; 1 PAR modification, and 3 PAR extensions. This total includes a Standard and 3 PARs that were approved just a few days ago.

In this Report: I. REVCOM / Standards approved ...................... pg 1 II. NESCOM / PARS approved .............................. pg 2 III. Standards Board 2013 Meeting Schedule ........ pg 2-3 IV. Transformers Committee Ballot Status ............ pg 4 V. Transformer Committee active PARs ............. pg 4-6 VI. Transformer Stds Status database .................. pg 7- 21 VII. Transformer Stds Org Chart .......................... pg 22-23

I. Standards approved since October 1, 2012.

NEW Transformer Standards Approved expiring Dec 2022 !!

C57.12.52 Standard for Sealed Dry‐Type Power Transformers, > 501 kVA C57.17 Standard for Arc Furnace Transformers C57.143 Guide for Monitoring L.I. Power Transformers C57.149 Guide for the Application and Interpretation of Frequency Response Analysis C57.150 Guide for the Transportation of Transformers and Reactors Rated 10,000 kVA C57.152 Guide for Diagnostic Field Testing of Fluid Filled Power Transformers, Regulators, and

Reactors (Approved March 5, 2013 – expires Dec 31, 2023 !!) Transformer REVISIONS approved, expiring Dec 2022!! C57.19.100 Guide for Application of Power Apparatus Bushings CORRIGENDA approved: C57.12.10 Corrigenda for Std Requirements for Liq.‐Immersed Power Transformers (This standard expires Dec 31, 2020 !)

March 2013 Standards Report Page 2 of 23

II. PARs approved since Oct 1, 2012

PARs for New Standards and Revisions PC57.160 Guide for the Electrical Measurement of Partial Discharges in High Voltage Bushings and Instrument Transformers (Approved March 6, 2013 – expires Dec 31, 2017)

PARs for Corrigenda approved PC57.12.60‐2009/Cor 1 Std Test Procedure for Thermal Evaluation of Insulation Systems for Dry‐Type Power and Dist. Transformers, Corrigendum 1 (Approved Dec. 2012 – expires Dec 2016)

PC57.12.31‐2010/Cor 1 Standard for Pole‐Mounted Equipment ‐ Enclosure Integrity ‐ Corrigendum 1: Correction to the SCAB Corrosion Test in Section 4.5.6 (Approved March 6, 2013 – expires Dec 31, 2017)

PAR Modifications approved P638 Std for Qualification of Class 1E Transformers for Nuclear Power Generating Stations (Modification approved Feb. 2013 – PAR now expires Dec 2013)

PAR Extensions approved

P638 Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations (Approved Dec. 2012 – expires Dec 2013)

PC57.152 Guide for Diagnostic Field Testing of Fluid Filled Power Transformers, Regulators, and Reactors (Approved Dec. 2012 – expires Dec 2013 )

PC57.12.01 Standard for General Requirements for Dry‐Type Distribution and Power Transformers (Approved March 5, 2013 – expires Dec 31, 2014)

III. 2013 IEEE Standards Board Meeting Schedule

DEADLINES for 2013 STANDARDS BOARD Submissions: Standards Bd Meeting Deadline

March 2013 24 January 2013

June 2013 03 May 2013

September 2013 12 July 2013

December 2013 21st October 2013

Note: The next Transformer Committee Meeting is October 20-24th, 2013 in St. Louis

But, the Standards Board deadline is Midnight on Monday, 21st; NOT the 22nd or 23rd or 24th.


III. 2013 Standards Board Meeting Schedule


IV. Transformer Committee Ballot Status (as of Mar 3, 2013)

SubCommittee/ Standard #

Title Date Ballot Opened

Current Status

Bushing Subcommittee C57.19.03 /65700-19-03

Requirements, Terminology, & Test Code for Bushings DC Applications NOTE PAR expires the end of 2013! 30-Sep-11

Comment Resolution

Dry Type C57.12.60

Cor 1 Std Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power & Dist. Transformers, Corrigendum 1 17-Feb-13

Comment Resolution

C57.94 Guide for Installation and Operation of Dry Type Transformers 23-Jul-11 Comment Resolution

Power

IEEE 638 Standard for Qualification of Class 1E Transformers for Nuclear Pwr Gen Stations 20-Oct-12

Comment Resolution

UTNP

C57.12.44 Standard Requirements for Secondary Network Protectors 10-Jun-12 Comment Resolution

Dist

PC57.12.35 Std for Bar Coding for Dist Transformers and Step-Voltage Reg’s Ballot Invitation Opened 20‐Feb 2013

V. Transformer Committee PAR Status (as of Mar 3, 2013)

PAR # Description PAR first approved

PAR Expiration

P638

Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations 7-Jun-2007 31-Dec-2013

P1276

Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Power Transformers

6-Feb-2012 31-Dec-2016

P60076-16 Standard Requirements for Wind Turbine Generator Transformers 8-Jun-2012 31-Dec-2016

P60076-57-1202 Standard Requirements for Liquid Immersed Phase-Shifting Transformers 8-Jun-2012 31-Dec-2016

P65700-19-03 Standard for Bushings for DC application 25-Mar-2010 31-Dec-2014

PC57.12.00

Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

16-Jun-2011 31-Dec-2015

PC57.12.01

Standard for General Requirements for Dry-Type Distribution and Power Transformers 9-Dec-2009 31-Dec-2014

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

8-Jun-2012 31-Dec-2016

PC57.12.24

Standard for Submersible, 3-Phase Transformers, <3750 kVA, High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below

9-Nov-2011 31-Dec-2015

PC57.12.28 Standard for Pad Mounted Equipment - Enclosure Integrity 30-Sep-2010 31-Dec-2014

PC57.12.29

Standard for Pad Mounted Equipment - Enclosure Integrity for Coastal Environments

30-Sep-2010 31-Dec-2014


Committee PAR Status continued....


PAR Expiration

PC57.12.31 /Cor 1

Standard for Pole-Mounted Equipment - Enclosure Integrity - Corrigendum 1: Correction to the SCAB Corrosion Test in Section 4.5.6 6-Mar-2013 31-Dec-2017

PC57.12.34

Standard for Requirements for Pad-Mounted, Compartmental Type, Self Cooled, 3 ph Dist Transformers, <10 MVA; HV: <34.5kV; LV: <15kV 31-Mar-2011 31-Dec-2015

PC57.12.35

Standard for Bar Coding for Distribution Transformers and Step-Voltage Regulators

17-Jun-2010 31-Dec-2014

PC57.12.36

Standard Requirements for Liquid-Immersed Distribution Substation Transformers 7-Dec-2011 31-Dec-2015

PC57.12.37 Standard for the Electronic Reporting of Distribution Transformer Test Data 7-Dec-2011 31-Dec-2015

PC57.12.38

Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 V and Below, Low Voltage, 480/240 V; 250 kVA and Smaller

25-Mar-2010 31-Dec-2014

PC57.12.39 Standard Requirements for Distribution Transformer Tank Pressure Coordination 6-Feb-2012 31-Dec-2016

PC57.12.40

Standard for Network, 3-ph Transformers, <2500 kVA; High Voltage < 34 500 V Low Voltage, <600 V; Subway and Vault Types (Liquid Immersed) 30-Aug-2012 31-Dec-2016

PC57.12.44 Standard Requirements for Secondary Network Protectors 17-Jun-2010 31-Dec-2014

PC57.12.59 Guide for Dry-Type Transformer Through-Fault Current Duration 7-Dec-2011 31-Dec-2015

PC57.12.60-2009/Cor 1

IEEE Standard Test Procedure for Thermal Eval of Insulation Systems for Dry-Type Power & Dist Transformers, - Corrigendum 1 5-Dec-2012 31-Dec-2016

PC57.12.90

Std Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

16-Jun-2011 31-Dec-2015

PC57.13 Standard Requirements for Instrument Transformers 25-Mar-2010 31-Dec-2014

PC57.13.7

Standard for Current Transformers with a Maximum mA Secondary Current of 250mA 30-Sep-2010 31-Dec-2014

PC57.13-2008 Cor 1

Std Req for Instrument Transformers - Corrigendum 1: Figure 3 Correction 30-Sep-2010 31-Dec-2014

PC57.19.01 Std Perf Characteristics and Dimensions for Outdoor Apparatus Bushings 8-Dec-2010 31-Dec-2014

PC57.19.04

Std Perf Characteristics and Dimensions for High Current Power Transformer Bushings with Rated Continuous Current in Excess of 5000 A in Bus Enclosures 16-Jun-2011 31-Dec-2015

PC57.32 Std Requirements & Test Procedures for Neutral Grounding Devices 7-Dec-2011 31-Dec-2015

PC57.637 Guide for the Reclamation of Insulating Oil and Criteria for Its Use 10-Dec-2008 31-Dec-2014

PC57.93 Guide for Installation and Maintenance of Liquid-Immersed Power Transformers 29-Mar-2012 31-Dec-2016

PC57.94

Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers

9-Nov-2011 31-Dec-2015

PC57.96 Guide for Loading Dry-Type Distribution and Power Transformers 9-Dec-2009 31-Dec-2013

PC57.104 Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers 5-Feb-2010 31-Dec-2014


Committee PAR Status continued ....


PAR Expiration

PC57.106 Guide for Acceptance and Maintenance of Insulating Oil in Equipment 9-Nov-2011 31-Dec-2015

PC57.116 Guide for Transformers Directly Connected to Generators 10-Sep-2011 31-Dec-2015

PC57.120 Guide for Loss Evaluation of Distribution and Power Transformers and Reactors 25-Mar-2010 31-Dec-2014

PC57.125

Guide for Failure Investigation, Documentation, Analysis, and Reporting for Power Transformers and Shunt Reactors 2-Feb-2011 31-Dec-2015

PC57.130

Trial-Use Guide for the Use of DGA Applied to Factory Temperature Rise Tests for the Evaluation of Oil-Immersed Transformers and Reactors

17-Jun-2010 31-Dec-2014

PC57.134 Guide for Determination of Hottest-Spot Temperature in Dry-Type Transformers 7-Dec-2011 31-Dec-2015

PC57.136

Guide for Sound Level Abatement and Determination for Liquid-Immersed Power Transformers and Shunt Reactors Rated Over 500 kVA 30-Sep-2010 31-Dec-2014

PC57.138 Recommended Practice for Routine Impulse Test for Distribution Transformers 2-Feb-2011 31-Dec-2015

PC57.139 Guide for Dissolved Gas Analysis in Transformer Load Tap Changers 16-Jun-2011 31-Dec-2015

PC57.140

Guide for Evaluation and Reconditioning of Liquid Immersed Power Transformers 31-Mar-2011 31-Dec-2015

PC57.147

Guide for Acceptance and Maintenance of Natural Ester Insulating Fluids in Transformers and Other Electrical Equipment

6-Feb-2012 31-Dec-2016

PC57.152

Guide for Diagnostic Field Testing of Fluid Filled Power Transformers, Regulators, and Reactors 16-Jun-2011 31-Dec-2015

PC57.153 Guide for Paralleling Power Transformers 27-Mar-2008 31-Dec-2014

PC57.155

Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester Immersed Transformers

25-Mar-2010 31-Dec-2014

PC57.156

Guide for Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors 16-Jun-2011 31-Dec-2015

PC57.157

Guide for Conducting Functional Life Tests for De-energized Tap-changer Contacts

7-Dec-2011 31-Dec-2015

PC57.158

Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers

15-May-2012 31-Dec-2016

PC57.159

Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems 8-Jun-2012 31-Dec-2016

PC57.160 Guide for the Electrical Measurement of Partial Discharges in High Voltage Bushings 6-Mar- 2013 31-Dec-2017

IEEE/PES TRANSFORMERS COMMITTEEStatus Report of Transformers Standards

revised March 6, 2013

STANDARDPROJECT

TITLEPub YearRev Due Dat

PAR Issue Dat

PAR Expiration

Standard StatusRemark

Working Group Chair

EmailPhone

SubCommittee BUSHINGP.

(417) 345-5926

[email protected] Zhao

PC57.19.04

Standard Performance Characteristics and Dimensions for High Current Power Transformer Bushings

6/16/201112/31/2015

New [email protected]

C57.19.00 Standard General Requirements and Test Procedure for Power Apparatus Bushings

200412/31/2020

Approved

Formally Std. IEEE 21 Previous revision 1991. Errata issued March 2010Reaffirmation approved 12/8/2010

Ellis(615) [email protected]

K. P.

C57.19.01

PC57.19.01

IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

200012/31/2018

12/8/201012/31/2014

Approved +PAR for Revision

Formally Std. IEEE 24Reaffirmed in 2005.Dec '10: Revcom extended for duration of PAR, December 2014

Del Rio905 426 [email protected]

C57.19.03-19

P65700-19-03

Standard Requirements, Terminology, and Test Code for Bushing for DC Applications - Corrigendum 1

12/31/20183/25/201012/31/2014

Approved + PAR for Revision

Published 6/6/2006See Corrigenda ‐1, Published in 2006 New PAR for revision submitted 10/2007Std merging with IEC stdPAR Modification approved March 2010

Recksiedler204 474 3192

C57.19.100 IEEE Guide for Application of Power Apparatus Bushings

199512/31/2022

ApprovedSpitzer(817) [email protected]

T.

Page 7 of 23Prepared by W. Bartley, Transformers Standards SC Chair March 6, 2013

STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee DIELECTRIC TESTSM. A.

(802) 751-3539

[email protected] Franchek

PC57.160

Guide for PD Measurement in HV Bushings and Inst Transformers

3/6/201312/31/2017

PAR approved Mar 2013

PAR approved

Poulin(450) [email protected]

B.

C57.113 IEEE Guide for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors

199112/31/2020

Approved std

Revision approved June 2010

Poulin(450) [email protected]

B.

C57.127 IEEE Guide for the Detection of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers

200712/31/2018

ApprovedHarley(330) [email protected]

J. W.

C57.138

PC57.138

IEEE Recommended Practice for Routine Impulse Test for Distribution Transformers

199812/31/2018

2/2/201012/31/2015

Approved - Reaffirmed in June '05

Reaffirmation approved by RevCom on 6/8/05.Dec '10: Nescom approved new PAR until Dec31 2015Revccom extended std until Dec 2015

Crotty573 659 [email protected]

J.W.

C57.98 IEEE Guide for Transformer Impulse Tests 201112/31/2021

Approved -

PAR to Revise IEEE Std C57.98‐1994 PAR extension approved to 12/31/2009. Another extension approved until Dec2011.Revision approved Dec 2011

Molden(845) [email protected]

A.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee DISTRIBUTION TRANSFORMERSS.

(417) 625-6110

[email protected] Shull

PC57.12.33

Guide for Distribution Transformer Loss Evaluation PAR WITHDRAWN - Inactive WG

Decision made at Las Vegas Meeting to discontinue this activity.

Pekarek(330) [email protected]

T. J.

PC57.12.39

Standard Requirements for Distribution Transformer Tank Pressure Coordination

2/6/201212/31/2016

New ProjectGaytan(52) 818 03022 [email protected]

C.

C57.12.20

PC57.12.20

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

201112/31/2021

6/8/201212/31/2016

Approved Standard with approved PAR for Revision

PAR for Revision approved June 2012

[email protected]

A.

C57.12.28

PC57.12.28

Standard for Pad Mounted Equipment - Enclosure Integrity

200512/31/2018

9/30/201012/31/2014

Approved

Previously NEMA/ANSI C57.12.28‐1999Published 9/30/2005PAR for Revision approved by NESCOM Sept 2010

Olen(262) [email protected]

O.

C57.12.29

PC57.12.29

Standard for Pad Mounted Equipment - Enclosure Integrity for Coastal Environments

200512/31/2018

9/30/201012/31/2014

Approved

Previously NEMA/ANSI C57.12.29‐1991Current standards Published 10/10/2005.PAR for Revision approved by NESCOM Sept 2010


O.

C57.12.30 Std for Pole-Mounted Eqpt - Enclosures for Coastal Environment 12/31/2020

Approved new standard

new standard approved June 2010


O.

C57.12.31

PC57.2.31

IEEE Standard for Pole Mounted Equipment - Enclosure Integrity

200212/31/2020

3/6/201312/31/2017

Approved with PAR for Corrigenda

Published 3/6/2003. New PAR approved 3/22/2007Std Bd approved 6/17/2010PAR approved for Corrigenda to Correct the SCAB Corrosion Test in Section 4.5.6


O.

C57.12.32 Standard for Submersible Equipment - Enclosure Integrity

200212/31/2018

Approved

Published 3/7/2003.Reaffirmation approved Mar 2008


O.

C57.12.34

PC57.12.34

Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase DistributionTransformers, 2500 kVA and Smaller: High-Voltage, 34 500GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below

12/31/20193/31/201112/31/2015

Approved + PAR for Revision

Originally Std. 1447, Combined C57.22‐1980 & C57.12.26‐1992Revised Standard approved Dec09Mar '11: Nescom approved new PAR for Revision

Shull(417) [email protected]

S.

C57.12.35

PC57.12.35

IEEE Standard for Bar Coding for Distribution Transformers

200712/31/2018

6/17/201012/31/2014

Approved

Formally P1265.PAR for Revision approved June 2010

Matthews(601) [email protected]

P


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee DISTRIBUTION TRANSFORMERSS.

(417) 625-6110

[email protected] ShullC57.12.36

PC57.12.36

Standard Requirements for Liquid-Immersed Distribution Substation Transformers

200712/31/2018

12/7/201112/31/2015

Approved std and approved PAR for Revision

approved by SA Board on 9/27/2007PAR for Revision submitted Oct'11 and approved Dec '11

Murphy(407) [email protected]

J.R.

C57.12.37

PC57.12.37

IEEE Standard for the Electronic Reporting of Transformer Test Data

200612/31/2018

12/7/201112/31/2015

Approved with PAR for Revision

Formally C57.132, IEEE Std 1388‐2000 D11d approved by SA Board on 3/30/2006.Published 7/21/2006. New PAR for Revision submitted Sept'11 ‐approved Dec'11

Crotty573 659 [email protected]

J.W.

C57.12.38

PC57.12.38

Standard for Pad-Mounted, Compartmental-Type, Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; High Voltage, 34500 GrdY/19920 Volts and Below, Low Voltage, 240/120 Volts; 167 kVA and SmallerRequirements

200912/31/2019

3/24/201012/31/2014

Approved - revision in progress

This std replaces C57.12.21 & C57.12.25Std published Nov 30 2009PAR for Revision approved by Nescom Mar‐2010

Ghafourian(731) [email protected]

A. A.

C57.15 IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators

199912/31/2019

Approved

A new PAR was approved 6/9/05 due to scope changes. Original PAR withdrawn.Also known as 60076‐21‐2011

Colopy(262) [email protected]

C. A.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee DRY TYPE TRANSFORMERSC. W.

(276) 688-1512

[email protected] Johnson, Jr.C57.12.01

PC57.12.01

IEEE Standard General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid Cast and/or Resin Encapsulated Windings

200512/31/2018

12/9/200912/31/2014

Approved

Previous 1998 version was successfully revised and approved in 2005.Published 5/19/2006 PAR for Revision approved Dec 09PAR Extension Request approved March 2013 until 2014

Sullivan(813) [email protected]

J. C.

C57.12.51 Ventilated Dry-Type Power Transformers, 501 kVA and Large, Three-Phase, with High-Voltage 601 to 34500 Volts; Low-Voltage 208Y/120 to 4160 Volts - General Requirements

12/31/2018New Project - PAR Requested 6/23/2006

Previously NEMA document C57.12.51, original publication by NEMA in 1981, Reaffirmed in 1998. This document was transferred to IEEE in Dec., 2002.Approved by SA Sept 2008

Powell(202) [email protected]

P. A.

C57.12.52 Standard Requirements for Sealed Dry-Type Power Transformers, 501 kVA and Larger, Three-Phase, with High-Voltage 601 to 34 500 Volts, Low-Voltage 208Y/120 to 4160 Volts

198112/31/2022

Approved

Previously ANSI C57.12.52‐1981Approved Dec 2012

Kennedy(716) [email protected]

S. P.

C57.12.56 IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Ventilated Dry-Type Power and Distribution Transformers

198112/31/2007

Withdrawn Dec 31 2009

C57.12.56 and C57.12.60 were merged together

Wicks(804) [email protected]

R. C.

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

199112/31/2018

Approved - Active

Reaffirmed Sept 2008

Kline(843) [email protected]

A. D.

C57.12.59

PC57.12.59

IEEE Guide for Dry-Type Transformer Through-Fault Current Duration

200112/31/2018

12/7/201112/31/2015

Approved

Reaffirmation approved in 12/5/2006.PAR for Revision submitted Oct'11 and approved by Std Bd Dec'11


P. A.

C57.12.60

PC57.12.60

IEEE Guide for Test Procedures for Thermal Evaluation of Insulation Systems for Solid Cast and Resin-Encapsulated Power and Distribution Transformers

199812/31/2019

12/5/201212/31/2016

Approved with Ballot open for Corrigenda

IEEE Std C57.12.56‐1986 and IEEE Std C57.12.60‐1998 merged together in 2009PAR for Corrigenda approved Dec 2012. Already in ballot.


R. C.

C57.12.91 IEEE Standard Test Code for Dry-Type Distribution and Power Transformers

200112/31/2021

ApprovedFoster(815) [email protected]

D. R.

C57.124 IEEE Recommended Practice for the Detection of Partial Discharge and the Measurement of Apparent Charge in Dry-Type Transformers

199112/31/2019

Approved

Need to initiate reaffirmation and requet extension.Reaffirmed Dec09

Johnson, Jr.(276) [email protected]

C. W.

C57.134

PC57.134

IEEE Guide for Determination of Hottest Spot Temperature in Dry Type Transformers

200012/31/2018

12/7/201112/31/2015

Approved

Reaffirmation approved 3/30/2006PAR for Revision submitted Oct'11 and on NESCOM Dec'11 Agenda


P. A.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee DRY TYPE TRANSFORMERSC. W.

(276) 688-1512

[email protected] Johnson, Jr.C57.16

PC57.16

IEEE Standard Requirements, Terminology, and Test Code for Dry-Type Air- Core Series-Connected Reactors

199612/31/2018

Approved

Revision approved by Std Bd Sept 2011

Dudley(416) [email protected]

R. F.

C57.94

PC57.94

IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers

198212/31/2018

11/9/201112/31/2015

Approved

Reaffirmation approved by the SA Board on 12/6/2006REVISION PAR approved Dec'11

Stankes(603) 545-3026

S

C57.96

PC57.96

IEEE Guide for Loading Dry Type Distribution and Power Transformers

199912/31/2018

12/9/200912/31/2013

Approved - Active

RevCom approved reaffirmation on 9/22/2004Previous revision in 1994.PAR for Revision approved Dec 2009Ext expiration until PAR exp 2013

Marek(804) [email protected]

R. P.

IEEE 259 IEEE Standard Test Procedure for Evaluation of Systems of Insulation for Dry-Type Specialty and General-Purpose Transformers

199912/31/2020

Approved

9/22/04 ‐ RevCom approved reaffirmationReaffirmed March 2010

Stankes(603) 545-3026

S

SubCommittee HVDC CON TX & SMRsM.

416-298-8108

[email protected] SharpC57.129

PC57.129

IEEE General Requirements and Test Code for Oil Immersed HVDC Converter Transformers

200712/31/2018

Approved

Trial use std published 6/6/2000; upgraded to full use 3/2002PAR for revision of C57.129‐1999 approved on 6/24/2004approved by SA Board 9/27/2007


R. F.

IEEE 1277 IEEE General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission

200012/31/2020

Approved. Active PAR for revision

Active PAR for revision.Ballot approved March 2010


R. F.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee INSTRUMENT TRANSFORMERSR.

(416) 751-8570

[email protected] McTaggart

PC57.13.7

Standard for Instrument Transformer with max output of 250ma

9/30/201012/31/2014

New Project

New project approved by NESCOM Sept 2010

Alton

C57.13

PC57.13

IEEE Standard Requirements for Instrument Transformers

200812/31/2018

3/24/201012/31/2014

Approved - Active PAR to revise std.

PAR to Revise IEEE Std C57.13‐2008 submitted to NESCOMPAR approved by NESCOM Mar‐2010PAR for Corrigendum approved Sept 2010

Smith(601) [email protected]

J. E.

C57.13.2 Conformance Test Procedure for Instrument Transformers

200512/31/2020

Approved

PAR to Revise Std C57.13.2‐1991; harmonize with C57.13‐1993D4 approved by RevCom on 6/8/2005; Published 9/29/2005.Reaffirmed 6/17/2010


J. E.

C57.13.5

PC57.13.5

Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above

200612/31/2019

Approved

Reference Std. 1400Previously C57.13.5 was a trial useUpgraded to Full Use 3/30/2006

Riffon(514) 840-3000 [email protected]

P.

C57.13.6 Standard for High Accuracy Instrument Transformers 12/31/2020

Approved

Document published in 12/9/2005Reaffiremed 2010


J. E.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee INSULATING FLUIDSS.J.

(612) 330-6904

[email protected] McNelly

PC57.130

IEEE Trial-Use Guide for the Use of Dissolved Gas Analysis During Factory Temeprature Rise Tests for the Evaluation of Oil-Immersed Transformers and Reactors

6/16/201012/31/2014

New Project

New Project ‐ Std under development ‐ currently under ballot resolution.PAR extension requested and approved to 12/31/2007.New PAR approved June 2010

[email protected]

J. A.

PC57.155

DGA Guide for Esters filled Transformers 3/24/201012/31/2014

New Project

PAR approved by NESCOM ‐ March‐2010

Boman(785)[email protected]

P.E.

C57.104

PC57.104

IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

199112/31/2018

1/9/201012/31/2014

Active + New PAR for Revision

PAR to Revise IEEE Std C57.104‐1991Original PAR and document withdrawn in Dec. 2005.New PAR approved in June, 2006.New PAR approved Jan 2010

Ladroga(617) [email protected]

R. K.

C57.106

PC57.106

IEEE Guide for Acceptance and Maintenance of Insulating Oil in Equipment

200612/31/2018

11/9/201112/7/2016

Approved Standard

PAR for Revision approved Dec'11

Rasor

[email protected]

B.

C57.111 IEEE Guide for Acceptance of Silicone Insulating Fluid and Its Maintenance in Transformers

198312/31/2019

ApprovedBoman(785)[email protected]

P.E.

C57.121 IEEE Guide for Acceptance and Maintenance of Less-Flammable Hydrocarbon Fluid in Transformers

199812/31/2019

Approved

Was to be administratively withdrawn in Dec., 2004Reaffirmation ballot pool invitation initiated in October, 2005.Reaffirmed Dec 2009

[email protected]

C57.139

PC57.139

Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

201012/31/2018

6/16/201112/31/2015

Approved

PC57.139 was approved as a new standard by the IEEE‐SA Standards Board on December 8, 2010

Wallach(980) [email protected]

D.J.

C57.146 Guide for Interpretation of Gasses Generated in Silicone-Immersed Transformers

200512/31/2021

Approved

Reaff Ballot invitation opened Oct '10; Ballot closed Dec 21 '10 with No NegativesRevcom approved extension until Dec 2011 Reaff approved 16‐June‐11.

Murphy(407) [email protected]

J.R.

C57.147

PC57.147

Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers 12/31/2018

2/6/201212/31/2016

Active with active PAR for Revision

New Standard approved May 2008

McShane(262) [email protected]

C. P.

IEEE 637

PC57.637

IEEE Guide for the Reclamation of Insulating Oil and Criteria for Its Use

198512/31/2018

12/10/200812/31/2014

Approved - Reaffirmed

Reaffirmation approved by SA Board 9/27/2007PAR for Revision approved Dec 2008PAR extension approved June 2012, until Dec 2014

[email protected]

J. A.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee INSULATION LIFEB. I.

405-622-8816

[email protected] Forsyth

PC57.145

Guide for the Definition of Thermal Duplicate Liquid-Immersed Distribution, Power, and Regulating Transformers

0 PAR WITHDRAWN

Previously P1524 Modified PAR to expire in 2004PAR administratively withdrawn in December, 2004

Beaster(601) [email protected]

B. L.

C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution and Power Transformers

199912/31/2021

Approved Standard

Requested PAR for revision on 10/18/2004. PAR extended 20081st Ballot ‐2010; 1st Recirc Sept 2011; 2nd Recirc closed 20‐Oct'2011APPROVED Dec 2011


R. C.

C57.119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil Immersed Power Transformers at Loads Beyond Nameplate Ratings

200112/31/2018

Approved

Previously IEEE 838. Published 3/12/2002.Reaffirmed Mar 2008

Tuli414 477 [email protected]

S. C.

C57.154

PC57.154

Design, Testing and App of Liquid-Immersed Transformers with High-Temp Insulation

2012 3/19/200912/31/2013

Approved

PAR for new standard approved March 2009Standard Bd approved Aug 30, 2012


R. P.

C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers

199512/31/2021

Approved

Combined from C57.91‐1981 & C57.92‐1981 & C57.115‐1991

Duckett(407) [email protected]

D. A.

IEEE 1276

P1276

IEEE Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Power Transformers

199712/31/2018

2/6/201212/31/2016

Approved with active PAR for Revision

Upgrade from trial use to full use on 3/30/2000Reaffirmation approved by SA Board in 3/30/2006PAR for Revision submitted Oct'11 and approved by Std Bd Feb 2012

Franchek(802) [email protected]

M. A.

IEEE 1538 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid Filled Transformer

200012/31/2021

Approved

Original approval in 2000. Reaffirmed in 2005. Reaffirmed again in Dec 2011

[email protected]

B. I.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee PERFORMANCE CHARACTERISTICSE.G.

(519) 837-4691

[email protected] TeNyenhuis

P60076-16

Standard Requirements for Wind Turbine Generator Transformers

6/8/201212/31/2016

Approved PAR

PAR approved June 2012This is an IEC Joint development

[email protected]

D.E.

PC57.133

Guide for Short-Circuit Testing of Distribution and Power Transformers

PAR Withdrawn

This PAR was withdrawn by consensus of PCSC. Proposed contents are reportedly addressed in C57.12.90.

[email protected]

M.

PC57.158

Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers

5/15/201212/31/2016

Approved PARBetancourt(52-80)[email protected]

E.

PC57.159

Guide for Application in Distributed Photovoltaic (DPV) Transformers in Power Generation Systems

6/8/201212/31/2016

Approved PARShertukde(860) [email protected]

H.M.

C57.105 IEEE Guide for Application of Transformer Connections in Three-Phase Distribution Systems

197812/31/2018

Approved

Was to be administratively withdrawn in Dec., 2004. Request extension to 2006. Reaffirmed 2008

Reitter(650) [email protected]

G. J.

C57.109 IEEE Guide for Liquid-Immersed Transformers Through-Fault-Current Duration

199312/31/2018

Approved

Reaffirmation ballot pool invitation initiated in October, 2005.Reaffirmed Mar 2008

Patel(205) [email protected]

B. K.

C57.110

PC57.110

IEEE Recommended Practice for Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents

199812/31/2018

Approved

PAR approved 11/18/2004.Ballot closed on 9/27/2007‐ need recirculationApproved by REVCOM Mar 2008


R. P.

C57.120

PC57.120

IEEE Loss Evaluation Guide for Power Transformers and Reactors

199112/31/2018

3/24/201012/31/2014

Approved - revision in progress

Reaffirmation approved by RevCom 6/8/2006.PAR for Revision submitted 1/21/2010 to merge C57.120 & C57.12.33Approved by NESCOM Mar‐2010

[email protected]

A.

C57.123 IEEE Guide for Transformer Loss Measurement 200212/31/2020

Approved std

Ref Std. IEEE 1098Revision approved June 2010

TeNyenhuis(519) [email protected]

E.G.

C57.136

PC57.136

IEEE Guide for Sound Level Abatement and Determination for Liquid- Immersed Power Transformers and Shunt Reactors Rated Over 500 kVA

200012/31/2018

9/30/201012/31/2014

Approved + Active PAR for Revision

Reaffirmation approved by RevCom on 9/21/2005PAR for Revision approved by NESCOM Sept 2010

Antosz(412) [email protected]

S.

C57.142

PC57.142

A Guide To Describe The Occurrence And Mitigation Of Switching Transients Induced By Transformer-Breaker Interaction

201012/31/2020

Approved

PC57.142 was approved as a new standard Standards Board on December 8, 2010

Degeneff(518) [email protected]

R. C.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee PERFORMANCE CHARACTERISTICSE.G.

(519) 837-4691

[email protected] TeNyenhuisC57.149 Guide for the Application and Interpretation of

Frequency Response Analysis for Oil Immersed Transformers

12/31/2022Approved

Approved

Sweetser (781) 672-6214<[email protected]>

C.L.

C57.18.10 IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers

199812/31/2019

Approved

Replaced the C57.18‐1964 for pool cathode mercury‐arc rectifiers.Amendment 1: Technical and Editorial Corrections was approved 3/27/08


S. P.

C57.21 IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

199012/31/2018

Approved

Reaffirmation approved on 6/23/2004.Revised Std approved Mar 2008


R. F.

IEEE 32

PC57.32

IEEE Standard Requirements, Terminology, and Testing Procedures for Neutral Grounding Devices

197212/31/2018

12/7/201112/31/2015

Approved - Active PAR to revise std

Dec. 2002 ‐ Sponsor changed from PES/SPD to PES/TR; PAR Modified and extended to Dec 2011; PAR stalled Oct'11, without a ballot. PAR withdrawn & New PAR submitted Oct'11, approved by Stds Bd Dec '11


S. P.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee POWER TRANSFORMERSJ.D.

(412) 787-1170

[email protected] Watson

P60076-57-12

Standard Requirements for Phase Shifting Transformers

6/8/201212/31/2016

Approved PAR

PAR approved June 2012This is an IEC Joint development

Ahuja(408) [email protected]

R. K.

PC57.153

Guide for Paralleling Power Transformers 3/27/200812/31/2014

New Project

PAR approved Mar 2008PAR Extension granted May 2012, until Dec2014

Jauch(727) [email protected]

E.T.

PC57.156

Guide to Tank Rupture Mitigation 6/16/201112/31/2015

New ProjectZhao(417) [email protected]

P.

PC57.157

Guide for Conducting Functional Life Tests for De-energized Tap-changer Contacts

12/7/101112/31/2015

New Project

PAR for New standard approved Dec'11

Hopkinson(704) [email protected]

P. J.

C57.116 IEEE Guide for Transformers Directly Connected to Generators

198912/31/2018

Approved

Reaffirmation approved in Dec. 2005 2010 Reaffirmation Ballot Closed with many NegativesPAR for Revision submitted July 2011 ‐ Std extended for life of the PAR

Hoffman(973) [email protected]

G.

C57.117

PC57.125

IEEE Guide for Reporting Failure Data for Power Transformers and Shunt Reactors on Electric Utility Power Systems

198612/31/2018

2/1/201112/31/2015

Active

Previously IEEE 786‐1986, original approval date 6/19/1986.Oct 2010 decision to merge with C57.125.This standard is still Active because of PAR for revison of C57.125.This will be withdrawn when Revision of C57.125 is approved.

Binder, Jr.(724) [email protected]

W. B.

C57.12.10 Standard Requirements for Liquid-Immersed Power Transformers

199712/31/2020

Approved standard

Formally NEMA/ANSI document.

Corrigenda APPROVED 12/5/2012

Hoffman(973) [email protected]

G.

C57.125

PC57.125

IEEE Guide for Failure Investigation, Documentation, and Analysis for Power Transformers and Shunt Reactors

199112/31/2018

2/1/201112/31/2015

Approved

Oct'10: decision to merge with C57.117. PAR for Revision submitted Oct 13 2010Feb'11: NESCOM approved new PAR for merger of 117 and 125.

Binder, Jr.(724) [email protected]

W. B.

C57.131 IEEE Standard Requirements for Load Tap Changers

199512/31/2022

Approved Standard

PAR Modified Dec 09 and extended to Dec 2010.Dec '10: Nescom & Revcom extend untul Dec31 20111st Ballot closed May'11; 1st Recirc closed 21‐Oct; Std was approved Mar 2012

Henning(262) [email protected]

W. R.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee POWER TRANSFORMERSJ.D.

(412) 787-1170

[email protected] WatsonC57.135

PC57.135

IEEE Guide for the Application, Specification and Testing of Phase- Shifting Transformers

200112/31/2021

Approved

Approved for IEEE/IEC Dual Logo Dec. 2005 ‐ IEC 62032 Ed. 1

Sim(919) [email protected]

H. J.

C57.140

PC57.140

Evaluation and Reconditioning of Liquid Immersed Power Transformers

200612/31/2018

3/31/201112/31/2105

Approved

D18 approved by RevCom 11/16/2006Mar '11: Nescom approved new PAR until Dec31 2015

James(504) [email protected]

R.I.

C57.143

PC57.143

Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components 12/31/2022

Approved

Approved Dec 2012

Chu(212) [email protected]

D.

C57.148

PC57.148

Standard for Control Cabinets for Power Transformers

201112/31/2018

New Standard

Approved by Std Bd Sept 2011

Watson(412) [email protected]

J.D.

C57.150 Guide for the Transportation of Large Power Transformers and Reactors 12/31/2022

ApprovedAnderson(402) [email protected]

G. W.

C57.17

PC57.17

Standard Requirements for Arc Furnace Transformers

Approved

PAR for revision of old ANSI Std. requested.MEC Completed /Ready for ballot /Waiting for Copyright ReleaseNESCOM extended PAR till Dec 2012Ballot completed and on Agenda for Dec 2012

Ganser(330) [email protected]

R.

C57.93

PC57.93

IEEE Guide for Installation of Liquid-Immersed Power Transformers

199512/31/2018

3/29/201212/31/2016

Approved Standard - with approved PAR for Revision

Rev of ASA C57.93‐1958, IEEE Std C57.12.11‐1980, & C57.12.12‐1980PAR to Revise IEEE Std C57.93‐1995 Approved by RevCom 12/2007PAR for Revision was approved March 2012

Lau(604) [email protected]

M. Y.

IEEE 638

P638

IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

199212/31/2018

6/7/200712/31/2013

Approved - Active - with errata dated 4/7/1999

Reaffirmation approved by SA Board 3/30/2006.New PAR for revision approved 6/7/2007. Ballot Launched Sept 20, 2012, PAR extension approved Dec 2012 PAR Modification approved Feb 2013

Swinderman(724) [email protected]

C.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee STANDARDSW. H.

(860) 205-0803

[email protected] BartleyC57.12.00

PC57.12.00

IEEE Standard for General Requirements For Liquid-Immersed Distribution, Power, and Regulating Transformers

201012/31/2020

6/16/201112/31/2015

Approved

2010 rev approved by SA Board in June, 2010. Published 9/10/2010.PAR for Continuous Revision approved June 2011

Snyder(731) [email protected]

S. L.

C57.12.70 IEEE Standard Terminal Markings and Connections for Distribution and Power Transformers

200012/31/2021

Approved

Published 3/16/2001. Reaff approved by RevCom 3/30/2006.New Revision approved by Std Board Dec 2011

Shull(417) [email protected]

S.

C57.12.80 IEEE Standard Terminology for Power and Distribution Transformers

200212/31/2020

Approved std

Amendment PAR approved to add thermally upgraded definitionRevision approved Sept 2010

Chiu(626) [email protected]

B.

C57.12.90

PC57.12.90

IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

200612/31/2020

6/16/201112/31/2015

Approved

Published Oct 2010 PAR for Continuous Revision approved June 2011

Antosz(412) [email protected]

S.

C57.144 Guide for Metric Conversion of Transformer Standards

200412/31/2020

Approved

Published 10/22/2004Reaffirmed March 2010

Balma(973) [email protected]

P.M.

C57.152 IEEE Guide for Diagnostic Field Testing of Power Apparatus - Part 1: Oil Filled Power Transformers, Regulators, and Reactors

199512/31/2023

Approved

This standard replaces IEEE 62.

Verner202 [email protected]

J. A.


STANDARDPROJECT


PAR Issue Dat

PAR Expiration


Working Group Chair

EmailPhone

SubCommittee UNDERGROUND TR & NW PROTECTC. G.

(847) 683-2145

[email protected] NiemannC57.12.23

PC57.12.23

IEEE Standard for Underground Type, Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; High Voltage 25kV and Below; Low Voltage 600V and Below

200912/31/2019

Approved

Published 4/20/2009

[email protected]

A.

C57.12.24

PC57.12.24

Requirements for Transformers - Underground-Type, Three Phase Distribution Transformers: High Voltage (34 500 GrdY/19 920 V and Below) and Low Voltage (480V and Below, 2500 kVA and Smaller

200012/31/2019

11/9/201112/31/2015

Approved standard

New PAR for Revision approved Nov '11

Termini(610) [email protected]

G.

C57.12.40

PC57.12.40

Standard for Requirements for Secondary Network Transformers - Subway and Vault Types (Liquid Immersed)

201112/31/2021

8/30/201212/31/2016

Approved Standard with approved PAR for Revision

Approved ‐ C57.12.40‐2011

Klaponski(204) [email protected]

B.

C57.12.44

PC57.12.44

IEEE Standard Requirements for Secondary Network Protectors

200512/31/2018

6/17/201012/31/2014

Approved

PC57.12.44/D2.1 approved by RevCom in December 2005. Published 6/07/2006PAR for Revision approved June 2010

Wimmer(804) [email protected]

W. G.

C57.12.57

NONE

Requirements for Ventilated Dry-Type Network Transformers 2500 kVA and Below, Three-Phase with High Voltage 34 500 Voltas and Below, Low Voltage 216Y/125 and 480Y/125 Volts

199212/31/2000

Standard withdrawn in 2001

Existing standard withdrawn by IEEE on 1/15/2001. No longer endorsed by IEEE.

Robinson(361) [email protected]

A. L.


IEEE/PES Transformers Committee Chair: Bill Chiu

Vice Chair: Don Platts Secretary: Stephen Antosz Treas: Greg AndersonPast Chair: J. Ed Smith Std. Coordinator: Bill Bartley

INSTRUMENTRoss McTaggart

HVDC Converter Xfmrs & Smoothing Reactors

Michael Sharp

DRY TYPEChuck W. Johnson

DISTRIBUTION Steve Shull

BUSHINGPeter Zhao

POWERJoe Watson

UG & NW ProtectorC. G. Niemann

Gen. Req. of BushingsRev of C57.19.00

Bushing App. GuideC57.19.100

OH Dist. Xfmrs C57.12.20

Wilks/Cooper

Eqp Encl. Integrity C57.12.28, C57.12.29,C57.12.30, C57.12.31,

& C57.12.32

Elec Rpt of Test DataIEEE 1388/C57.12.37

General Req.C57.12.01

Req. & Test Code for HVDC Con. Xfmr

C57.129

Req. & Test Code for HVDC Smoothing

Reactors IEEE 1277

Step Volt. RegulatorC57.15

Req for Inst. XfmrsC57.13

Test Proc. For Inst. Xfmrs

C57.13.2

Test Req. for >= 115kVPC57.13.5

Req. for Elect. Rev. MeteringC57.13.6

Guide for MonitoringC57.143

Directly Connected GSU

C57.116

Req. for Liq. Imm. Power Xfmrs

C57.12.10

Std. Req. for Sec. Network Xfmrs

C57.12.40

UG 3ph Dist Xfmr< 2500KVAC57.12.24

Dry Type Air-Core ReactorsC57.16

Performance Characteristics

C57.19.01

Req. & Testing of DC BushingsC57.19.03

Req.for Vent. <=500KVAC57.12.50

Req.for Vent. >500KVAPC57.12.51

Req. for Sealed >500kVA

PC57.12.52

Thermal Eval. for Dry-Type C57.12.56 & 12.60

Transient AnalysisC57.12.58

Dry-Type Through Fault Current Duration

C57.12.59

Test CodeC57.12.91

IEEE 683 - Class IEReaffirmation

Phase-Shift XfmrsC57.135

Eval & ReconditioningC57.140

Std for Control CabinetC57.148

Arc Furnace XfmrC57.17

Installation & Maint Guide C57.93

Vent Dry-Type Network Xfmrs <=2500KVA

C57.12.57

Req. for 3ph Pad MountC57.12.34

UG Self-Cool 1-phC57.12.23

Pad-Mount 1ph Self-Cool <2500kVA

C57.12.38

Bar CodingC57.12.35

TF for Standardization of GSU Bushings

PC 57.19.04

Transportation GuideC57.150

Tank Rupture Mitigation C57.156

P. Zhao

Revised by W. Bartley

Std. Req. for Sec. Network Protectors

C57.12.44

Requirements for LTCC57.131

Dry-Type Hottest SpotC57.134

Dry Type Op & Maint. GuideC57.94

Dist. Sub. XfmrsC57.12.36

Guide for ParallelingC57.153

Page 22 of 23

Failure InvestigationsC57.125

Functional Life Tests for DETC C57.157

Req. for mA CTC57.13.7

Tank Pressure CoordinationC57.12.39

Revised 3/3/2013

Std Requirements Phase Shifters

P60076-57-1202Std Network 3-ph <2500kVAC57.12.40

IEEE/PES Transformers Committee Chair: Bill Chiu

Vice Chair: Don Platts Secretary: Stephen Antosz Treas: Greg AndersonPast Chair: J. Ed Smith Std. Coordinator: Bill Bartley

Insulating Fluids Sue McNelly

Insulation LifeBruce Forsyth

DIELECTRIC TESTMike Franchek

Performance CharacteristicsEd teNyenhuis

StandardsWm. Bartley

Req. & Test Code for Shunt Reactors

>500kVA C57.21

Semicon Rectifier XfmrsC57.18.10

S. Kennedy

App. Guide for Xfmr Connections

C57.105 - Reaffirmation

Sound Level AbatementC57.136

Impulse Test Guidefor Dist Tx C57.138

J Crotty

Rev of Low Freq. TestsB. Poulin

Detection of PD -Acoustic Emission

C57.127

DGA GuideC57.104

R. Ladroga

Mineral OilC57.106

Silicone OilC57.111

DGA During Thermal Test C57.130J. Thompson

Less Fammmable H-C Fluid C57.121

D. Sundin

Loading GuideC57.91

Don Duckett

TF Investigate Use of Furan Testing

S. Xu

Max. Wdg Temp RiseIEEE 1538

Temp Rise Test Above NP RatingC57.119

Test Procedure Thermal Eval

C57.100R. Wick

Cont Rev of C57.12.00S. Snyder

Cont. Rev of C57.12.90S. Antosz

Metric ConversionC57.144P. Balma

TerminologyC57.12.80

B. Chiu

MeetingsGreg Anderson

Through-Fault Current Duration C57.109

Reaffirmation

Non-Sinusoidal Load CurrentC57.110

Xfmr Loss Measurement

C57.123

Short Circuit TestingPC57.133

Mitigation of Switching Transients CB/Xfmr Interaction C57.142

WG- App. of High Temp Insulation IEEE 1276

M. Franchek

DGA in LTCC57.139

D. Wallach

TF – Moisture in InsulationB. Rasor

Oil Reclamation IEEE 637

J. Thompson

DGA in SiliconeC57.146

J. Murphy

Website DevelopmentS. McNelly

Terminal Markings & Connections

S. Schull C57.12.70

Diagnostic Field Testing J. Verner

IEEE C57.152 /(62)

Neutral Grounding Devices

IEEE32/PC57.32

Educational Development

T. Prevost

WG on DielectricTest Table

P. Hopkinson

PAR for Sound Level Measurement

PC57.151

WG - Temp Rise Test -C57.12.90, Clause 11

P. Powell

IEEE /IEC Cross Reference TF

J. Sim

Revised by W. Bartley

TF on Determination ofMoisture in Paper

J. Sim

FRA GuidePC57.149

PCS Rev to Test Code- 12.90

PCS Rev. to Gen Req - 12.00

S. Snyder

WG -PD MeasurementOn Bushings & Inst Tx

B. Poulin

Rev of Transient Voltage Test

P. Riffon/P. Heinzig

WG- External Dielectric Test Clearance

Eric Davis

Page 23 of 23

WG – Std Req. Hi Temp Insulation C57.154

R. Marek

DGA in Ester Fluids PC57.155P. Boman

TF for Particle CountM. Scarborough

App Guide for Ester Fluids -C57.147

P. McShane

Windfarm TransformersP60076-16

TF – Winding Temp Indicators

P. McClure

TF – Fluid terminology consistencyP. McShane

Tertiary & Stabilizing WindingsPC57.158

DPV Grid Transformers

PC57.159

Revised 3/3/2013

TF – Moisture in Insulation T. Prevost

Committee History

P. Balma

TF Dielectric Freq Response

A. Naderian