146 voltage transformers

SR - 146 SR - 146

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THE ISRAEL ELECTRIC CORPORATION LTD. PLANNING DEVELOPMENT AND TECHNOLOGY DIVISION

RELIABILITY AND H.V. EQUIPMENT DEPARTMENT

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NOVEMBER 2015

Copyright ©. All Rights Reserved.

No part of this Tender may be reproduced, stored in retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, or used for purposes other than participation in this tender, without the prior written permission of the RELIABILITY & H.V. EQUIPMENT DEPARTMENT Israel Electric Corporation (I.E.Co.)

SPECIFICATION

SR - 146 FOR

170 kV

VOLTAGE TRANSFORMERS

SR - 146 SR - 146

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THE ISRAEL ELECTRIC CORPORATION LTD. PLANNING DEVELOPMENT AND TECHNOLOGY DIVISION

RELIABILITY AND H.V. EQUIPMENT DEPARTMENT

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Version A

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SIGNATURE�

PREPARED: L. Eskenasy C. Marchini

11. 15

CHECKED:� DR. H. Ben Haim 11. 15

APPROVED:� D. Amdur 11. 15

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NOVEMBER 2015

SPECIFICATION

SR - 146 FOR

170 kV

VOLTAGE TRANSFORMERS

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TABLE OF CONTENTS 1. PURCHASER ...................................................................................................................................................... B-1�

2. NAME OF PROJECT ........................................................................................................................................ B-1�

3. LOCATION OF PROJECT ............................................................................................................................... B-1�

4. SCOPE OF WORK & SUPPLY ........................................................................................................................ B-1�

4.1 PROJECT DESCRIPTION ............................................................................................................................. B-1�

4.2 SCOPE OF SUPPLY ...................................................................................................................................... B-1�

4.3 MANUFACTURER/CONTRACTOR ........................................................................................................... B-2�

5. TERMINAL POINTS ......................................................................................................................................... B-3�

6. CYBER & INFORMATION SECURITY ........................................................................................................ B-3�

7. QUALITY MANAGEMENT SYSTEM & QUALITY CONTROL ............................................................... B-3�

7.1 QUALITY MANAGEMENT SYSTEM ........................................................................................................ B-3�

7.2 QUALITY CONTROL .................................................................................................................................. B-3�

7.3 INTERCHANGEABILITY ............................................................................................................................ B-3�

8. STANDARDS & CODES ................................................................................................................................... B-3�

9. TECHNICAL DOCUMENTATION ................................................................................................................. B-5�

9.1 GENERAL ..................................................................................................................................................... B-5�

9.2 TECHNICAL DOCUMENTS TO ACCOMPANY THE PROPOSAL .......................................................... B-5�

9.3 TECHNICAL DOCUMENTS AFTER NOTIFICATION OF AWARD ........................................................ B-8�

10. TECHNICAL REQUIREMENTS ................................................................................................................. B-10�

10.1 ENVIRONMENTAL CONSIDERATIONS & SERVICE CONDITIONS ................................................ B-10�

10.1.1 SYSTEM DATA ................................................................................................................................... B-10�

10.1.2 CLIMATIC CONDITIONS................................................................................................................... B-10�

10.1.3 ENVIRONMENTAL CONDITIONS ..................................................................................................... B-11�

10.1.4 SPECIAL REQUIREMENTS FOR ENVIRONMENTAL PROTECTION............................................. B-11�

10.1.5 SEISMICITY OF THE SITE................................................................................................................. B-14�

10.1.6 OTHER REQUIREMENTS .................................................................................................................. B-14�

10.2 RELIABILITY, AVAILABILITY, MAINTAINABILITY........................................................................ B-14�

10.3 FUNCTIONAL REQUIREMENTS ........................................................................................................... B-15�

10.4 PROPERTIES (RATINGS) ........................................................................................................................ B-15�

10.4.1 ELECTRICAL DATA FOR VT’s .......................................................................................................... B-15�

10.4.2 OTHER REQUIREMENTS .................................................................................................................. B-18�

10.5 DESIGN AND CONSTRUCTION............................................................................................................. B-20�

10.5.1 GENERAL REQUIREMENTS ............................................................................................................. B-20�

10.5.2 INSULATING MEDIUM ..................................................................................................................... B-22�

10.5.3 SEALING ............................................................................................................................................. B-24�

10.5.4 PROTECTION AGAINST OVERPRESSURE .................................................................................... B-25�

10.5.5 ACCESSORIES AND FITTINGS ......................................................................................................... B-26�

10.5.6 TERMINALS ........................................................................................................................................ B-27�

10.5.7 INSULATORS ...................................................................................................................................... B-27�

10.5.8 STRUCTURAL SUPPORT AND ASSOCIATED STEEL WORK ......................................................... B-34�

10.5.9 STRESSES ON MOUNTED VOLTAGE TRANSFORMERS INCLUDING STEEL SUPPORTING

STRUCTURE .................................................................................................................................................. B-34�

10.5.10 SECONDARY TERMINAL BOX ........................................................................................................ B-36�

10.5.11 WINDINGS ........................................................................................................................................ B-37�

10.5.12 DIMENSIONS AND WEIGHTS ......................................................................................................... B-37�

10.6 COMMISSIONING / INSTALLATION .................................................................................................... B-46�

10.7 OPERATION & MAINTENANCE ............................................................................................................ B-48�

10.7.1 GENERAL............................................................................................................................................ B-48�

10.7.2 SPARE PARTS ..................................................................................................................................... B-49�

11. TESTS & INSPECTIONS .............................................................................................................................. B-51�

11.1 TESTS – GENERAL .................................................................................................................................. B-51�

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11.2 TYPE TESTS.............................................................................................................................................. B-52�

11.3 ROUTINE TESTS: ..................................................................................................................................... B-53�

11.4 SPECIAL TESTS ....................................................................................................................................... B-58�

12. PACKING & DELIVERY ............................................................................................................................. B-61�

13. STORAGE & HANDLING ............................................................................................................................ B-64�

14. NAME PLATE ................................................................................................................................................ B-65�

15. NOTES ............................................................................................................................................................. B-66�

15.1 TERMS AND CONDITIONS FOR 170 KV VOLTAGE TRANSFORMERS PURCHASING ................ B-66�

15.2 EVALUATION OF CONTRACTOR’S TECHNICAL PROPOSAL ......................................................... B-66�

15.3 COMMENTS BY MANUFACTURER ON ANNEXURE “B” AND SUMMARY OF DATA ................. B-67�

15.4 DEVIATIONS FROM REQUIREMENTS ................................................................................................ B-68�

15.5 CONFORMITY WITH PROPOSAL DOCUMENTS ................................................................................ B-69�

SUMMARY OF PRICES ....................................................................................................................................... C-1�

1. BASIC SCOPE ............................................................................................................................................. C-1�

2. OPTIONS ..................................................................................................................................................... C-2�

APPENDICES: ...................................................................................................................................................... A1-1�

QUALITY REQUIREMENTS ........................................................................................................................... A1-1�

TYPE AND SPECIAL TESTS OF VOLTAGE TRANSFORMERS ..................................................................................... A2-1�

TYPE TESTS FOR PORCELAIN INSULATORS ...................................................................................................... A3-1�

TYPE TESTS FOR COMPOSITE INSULATORS ...................................................................................................... A4-1�

MINERAL INSULATING OIL SUPPLIED FOR/WITHIN NEW ELECTRICAL EQUIPMENT ................................................ A5-1�

CALCULATION OF SAFETY FACTOR OF VT WITH PORCELAIN INSULATORS INCLUDING STEEL SUPPORTING

STRUCTURE AND BOLTS ....................................................................................................................................... A6-1�

CALCULATION OF SAFETY FACTOR OF VT WITH SILICON RUBBER INSULATORS INCLUDING STEEL

SUPPORTING STRUCTURE AND BOLTS .................................................................................................................. A7-1�

RAM FOR 170 KV VOLTAGE TRANSFORMER OIL INSULATED ........................................................................... A8-1�

RAM FOR 170 KV VOLTAGE TRANSFORMER SF6 GAS INSULATED .................................................................. A9-1�

SPECIFICATION FOR PAINTING ON GALVANIZED SURFACES BY WET/ELECTROSTATIC POWDER PAINTING ... A10-1�

DRAWINGS: ................................................................................................................................................................

EVK-8469 STEEL SUPPORTING STRUCTURE FOR MOUNTING OF VOLTAGE TRANSFORMERS ...................... B-45

ANNEXURE “B” AND SUMMARY OF DATA SPECIFICATION SR - 146

B-1

SPECIFICATION FOR 170 kV

INDUCTIVE VOLTAGE TRANSFORMERS

1. PURCHASER

The Israeli Electric Corporation Limited.

2. NAME OF PROJECT

170kV Inductive Voltage Transformers.

3. LOCATION OF PROJECT

The Voltage Transformers will be installed in outdoor substations.

4. SCOPE OF WORK & SUPPLY

Design, develop, manufacture, test, preserve, pack, furnish FCA/FOB/DDP with export

packing Voltage Transformers.

4.1 PROJECT DESCRIPTION

New 170kV Substations

4.2 SCOPE OF SUPPLY

4.2.1 ITEM 1: 170 kV Voltage Transformers, ratio 161/�3//0.115/�3//0.115/�3, with two secondary windings with accuracy class 0.2(3P) and 0.5(3P).

4.2.2 ITEM 2: 170 kV Voltage Transformers, ratio 161/�3//0.115/�3//0.115/�3//0.115/�3, with three secondary windings with accuracy class 0.2(3P), 0.5(3P) and 0.5(3P).

4.2.3 ITEM 3: Steel supporting structure for mounting of VOLTAGE TRANSFORMERS on the foundations according to drawing EVK-8469.

The Voltage Transformers can be supplied in the following alternatives:

- Alternative A: Oil insulated VT with porcelain insulator.

- Alternative B: SF6 gas insulated VT with porcelain insulator.

- Alternative C: Oil insulated VT with composite insulator.

- Alternative D: SF6 gas insulated VT with composite insulator.


B-2

4.3 MANUFACTURER/CONTRACTOR

MANUFACTURER’S OFFERED DATA AND PARAMETERS SHOULD BE FILLED IN AGAINST PURCHASER’S REQUIRED VALUES - AS WELL AS IN THE ABSENCE THEREOF UNDER ALL RELEVANT PARAGRAPHS IN THE FREE COLUMNS ON THE RIGHT HAND SIDE.

A DEFINITE ANSWERS (YES OR NO) OR APPROPRIATE COMMENTS SHALL BE GIVEN TO ALL OTHER REQUIREMENTS.

REQUIRED OFFERED

4.3.1 Manufacturer's name and address ................................................................

4.3.2 Contractor's name and address (if it is different from Manufacturer’s) ................................................................................................

4.3.3 Type of Inductive Voltage Transformer (denomination) ................................

4.3.3.1 ITEM 1:

4.3.3.1.1 Alternative A ................................................................................

4.3.3.1.2 Alternative B: ...............................................................................

4.3.3.1.3 Alternative C: ...............................................................................

4.3.3.1.4 Alternative D: ...............................................................................

4.3.3.2 ITEM 2:

4.3.3.2.1 Alternative A ................................................................................

4.3.3.2.2 Alternative B: ...............................................................................

4.3.3.2.3 Alternative C: ...............................................................................

4.3.3.2.4 Alternative D: ...............................................................................

4.3.4 The offered type of VT shall be a proven design (not a prototype) with high experience in work (Manufacturer declaration) ................................

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4.3.5 Contractor’s proposal number ................................................................

4.3.6 Validity of proposal ................................................................................................

4.3.7 List of all subcontractors or subsuppliers, including name, address and status of QMS versus ISO 9001:2008 standards and attach a copy of their Q.M.S. certificate.


B-3

5. TERMINAL POINTS

Not Applicable (NA)

6. CYBER & INFORMATION SECURITY

Not Applicable (NA)

7. QUALITY MANAGEMENT SYSTEM & QUALITY CONTROL

7.1 QUALITY MANAGEMENT SYSTEM

7.1.1 Definitions:

7.1.1.1 Certification Body (CB) – An independent external body authorized to confirm that the tenderer/supplier's Management System conforms with the requirements specified in the standard, by issuing a certificate. The Certification Body should be qualified to certify by an Accreditation Body.

7.1.1.2 Accreditation Body (AB) – An independent body, being a member of the International Accreditation Forum Multilaterial Arrangement – IAF MLA, having authority to formally approve the competence of certification body providing certification services.

7.1.2 The tender/supplier shall have a Quality Management System (QMS) having a certificate evidencing compliance with the requirements of the valid revision of ISO 9001 or any other Management System standard specifically indicating that it implements the requirements of ISO 9001 which are valid on the date that specified for submission of the proposal.

7.1.3 Approval of conformance with the ISO 9001 requirements, as indicated in clause 7.1.2 above, shall be in a form of a certificate issued by a Certification Body [(CB) see 7.1.1.1] which is a qualified by an Accreditation Body [(AB), see 7.1.1.2].

7.1.4 The certificate should bare the logo of the CB and of its Accreditation Body and/or the logo of the IAF MLA.

7.1.5 The certificate shall be valid on the date set for submission of the proposal. The certificate shall be valid for the scope of activities requested in the request for proposal.

7.2 QUALITY CONTROL

The quality control requirements should be according to specification "Q-App-02 Rev. 4" (See appendix 1)

7.3 INTERCHANGEABILITY

The Inductive Voltage Transformers of the same type and ratings shall be interchangeable both electrically and mechanically with each other, and when so interchanged shall perform their function equally well in every respect.

8. STANDARDS & CODES

8.1 Unless otherwise specified all equipment shall be designed, constructed and tested in accordance with the requirements of the latest relevant published Recommendations of the International Electrotechnical Commission (IEC) as amended up to date.

8.2 All aspects, tests, etc. not covered by IEC Recommendations, should be executed according to the latest published issue of official, or otherwise approved standards of Manufacturer’s country. In such cases, the standards themselves shall be supplied.

ANNEXURE “B” AND SUMMARY OF DATA SPECIFICATION SR – 146

B-4�

8.3 In case the requirements in this Specification differ from those in IEC Publications in any respects, the Voltage Transformer shall conform to the requirements in this Specification concerning that item.

8.4 The terminology used in this Specification, is, except where otherwise indicated, in accordance with IEC Publications:

1. IEC 61869-1/2007 - Instrument transformers.

2. IEC 61869-3/2011 – Inductive Voltage transformers.

3. IEC 62155/2003 -Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000 V.

4. IEC 61462/2007- Composite hollow insulators.

5. IEC 62271-207/2012- Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV.

6. IEC 60721 - Classification of environmental conditions.

7. IEC 60529/2013 - Degrees of protection provided by enclosures (IP Code).

8. IEC 62262/2002 - Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code).

9. IEC 60137/2008 - Insulated bushings for alternating voltages above 1 000 V.

10. IEC 62039/2007 - Selection guide for polymeric materials for outdoor use under HV stress.

11. IEC 62217/ 2012- Polymeric HV insulators for indoor and outdoor use.

12. IEC 60085/2007 - Thermal evaluation and designation.

13. IEC 60376/2005 - Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment.

14. IEC 60815 - Selection and dimensioning of high-voltage insulators intended for use in polluted conditions.

15. IEC 62073/2003 - Guidance on the measurement of wettability of insulator surfaces.

16. IEC 60417/2004 - Graphical symbols for use on equipment.

17. IEC 60296/2012 - Fluids for electrotechnical applications – Unused mineral insulating oils for transformers and switchgear.

18. IEEE 987/2001- Guide for Application of Composite Insulators.

19. IEEE 693/2005 - Seismic Design of Substations.

20. IEEE 57.13/2008 - Standard Requirements for Instrument Transformers.


B-5

9. TECHNICAL DOCUMENTATION



REQUIRED OFFERED

9.1 GENERAL

9.1.1 All data and descriptive material shall be in English ................................

9.1.2 All documents shall be submitted in doc or pdf formats ................................

9.1.3 All drawings shall be submitted in dwg and pdf formats................................

9.2 TECHNICAL DOCUMENTS TO ACCOMPANY THE PROPOSAL

9.2.1 Description and drawings of complete voltage transformer, showing all components and the corresponding identification number ................................

9.2.2 Description of method of sealing: ................................................................

9.2.2.1 Alternatives A&C ............................................................................

9.2.2.2 Alternatives B&D ............................................................................

9.2.3 Certificate for insulating oil ......................................................................................

9.2.4 Certificate of SF6 gas ..............................................................................................

9.2.5 Description and drawing of the terminals ................................................................

9.2.6 Description and drawing of the insulator from insulator Manufacturer ......................

9.2.7 Alternative A&B (porcelain insulator) ................................................................

9.2.8 Alternative C&D (composite insulator) ................................................................

9.2.9 Cross-section: ................................................................................................

9.2.9.1 A cross section of VT .....................................................................

9.2.9.2 A cross section of secondary leads through tank wall .....................

9.2.10 Wiring diagram ................................................................................................

9.2.11 Drawing of the nameplate .....................................................................................


B-6�

REQUIRED OFFERED

9.2.12 Final factory test reports ........................................................................................

9.2.13 Example of routine test report for offered type..............................

9.2.14 Type test report (authority1 number and date) for offered type, including test circuit, instruments used and description of method.

9.2.15 We are interested in test values for offered type of VT as supplied to various customers (routine and type tests). Test reports for other types than offered can be considered only if guaranteed with those for offered type ................................................................................................

9.2.16 Test reports to prove that porcelain insulator has successfully withstood all relevant tests according to IEC 62155 ................................

9.2.17 Test reports to prove that composite insulator has successfully withstood all relevant tests according to IEC 61462

9.2.18 Drawings and description of handling and storage ................................

9.2.19 Drawings and description of packing & delivery .....................................................

9.2.20 Manufacturer's requirements for :

9.2.20.1 Prolonged storage (2-3 years) before erection, taking into account the specific conditions under clause 10.1 ....................................

9.2.20.2 Transport on roads and on site ....................................................

9.2.21 Reliability, Availability, Maintainability, Safety (RAMS) report ................................

9.2.22 Details of shock indicators .....................................................................................

9.2.23 A list of VT external metal parts which should be painted and painting instruction for Purchaser approval .............................................................

9.2.24 General instruction books for erection, operation and maintenance ................................................................................................

9.2.25 Customer list for the last five years including quantities and types ........................

9.2.26 A list of recommended special tools and instruments necessary for erection, maintenance and repair of the VT’s ...........................................................

1 In case tests have been performed in another laboratory than Manufacturer’s, please

indicate.


B-7�

REQUIRED OFFERED

9.2.27 A list of necessary accessories for lifting ...............................................................

9.2.28 A list of recommended spare parts (including total quantities, number of catalog and itemized prices) for the amount of the VT's indicated in this Specification ................................................................

9.2.29 Cross-section and explosion drawings for all spare parts ................................

9.2.30 A list of all parts which could wear out after 5 years, 10 years and 20 years of operation acc. to Manufacturer or users experience .............................

9.2.31 A list of all gaskets and sealing rings including location, dimensions, number of catalogue, resilience properties and duration of conservation storage without loss of qualities ..........................................................

9.2.32 A list of all bolts used, including dimensions, number of catalogue, material, type of thread, maximum torque for fastening. ................................

9.2.33 Quality/Management Manual ................................................................

9.2.34 A valid certificate demonstrating certification to ISO 9001:2008 and QMS documents as per cl 7.1 and other quality documents as follows:

9.2.34.1 Quality plan for the validation and during manufacturing and inspection testing.

9.2.34.2 Acceptance test procedures for material and sub-assemblies…

9.2.34.3 Inspection, test plan and test procedures .....................................

9.2.34.4 Design Control Procedures ..........................................................

9.2.34.5 Qualification of subcontractor's Procedures ..................................

9.2.35 A list of optional items ...........................................................................................

9.2.36 Details about environmental management system (EMS) according to ISO 14001 ................................................................................................

9.2.37 An environmental product declaration (EPD) approved and certified by an accredited certification body. The calculation will take into consideration the requirements for EPD acc. to ISO 14025. ................................................................................................

9.2.38 Instruction concerning disassembly and end of life procedures for different components of the equipment (composition, weight, toxicity etc) .........................................................................................................................


B-8�

REQUIRED OFFERED

9.3 TECHNICAL DOCUMENTS AFTER NOTIFICATION OF AWARD

9.3.1 After notification of award, Contractor shall, within 30 days of the date of award, submit to the Purchaser for approval one (1) CD including the files of drawings in format DWG and PDF, covering the following information : ..............................................................................................

9.3.1.1 Descriptions, general outline drawings and relevant cross sections of the VT showing weights forces, details and anchor bolts, major dimensions, mounting details and locations of all Purchaser’s main terminal connections and locations of conduit entrance plate, for secondary connections. Full description of terminals (material, shape, effective cross section) shall be given ................................

9.3.1.2 Detailed drawings for execution of steel supporting structure including dimensions, material and type of protection against corrosion, input data for calculation of foundations and anchor bolts. .............................................................................................

9.3.1.3 Cross sections through VT's components (especially to those, which should be periodically inspected) shall be provided, as well as a full list of same. The list should enable easy location of components and shall include Manufacturer’s catalogue numbers for all items, with indications of quantities per VT's. Easy identification of the drawings pertaining to the items in the list is required .........................................................................................

9.3.1.4 Description and drawing of the insulators from insulators Manufacturer ................................................................................. Test report shall be presented ......................................................

9.3.1.5 Schematic and detailed wiring diagram ..........................................

9.3.1.6 Complete nameplate drawing .........................................................

9.3.2 Manufacturer is free to supply any additional information considered necessary for clarifying various aspects of transformer performance, operation, maintenance etc ......................................................................................

9.3.3 Purchaser reserves himself the right to require all necessary additional data, descriptions, drawings, etc. that may contribute in completing information supplied by Manufacturer about the Voltage Transformer and steel pedestal ................................................................

9.3.4 If the drawings are returned by the Purchaser and stamped "approved except as noted", Contractor shall make corrections per Purchaser's marking and shall resubmit required copies of the corrected documents as stated above. ................................................................


B-9�

REQUIRED OFFERED

9.3.5 After approval of the above drawings, Contractor shall submit to the Purchaser for approval one (1) CD of complete instruction books as may be required for erecting, operating, and maintaining the equipment. The instructions shall include recommended detailed procedures for commissioning and periodic testing and all pertinent test report ................................................................................................

9.3.6 After approval of the above drawings and instruction books, but not later than two (2) months after the date of award, Contractor shall submit to the Purchaser the following:................................................................

9.3.6.1 One (1) CD with the files of drawings in format DWG and PDF ......

9.3.6.2 One (1) CD of complete instruction books, as may be required for erecting, operating and maintaining equipment .............................

9.3.7 Instruction books shall include such drawing lists, performance test curves, lists of parts, etc. as may be required to give Purchaser complete information for the ordering of spare parts ................................

9.3.8 All descriptive materials (lists, instruction books, etc.) should be numbered and dated for easy identification and reference purposes .......................

9.3.9 All data and descriptive material in the above drawings and instruction books shall be in English. All dimensions shall be shown in metric units ................................................................................................

9.3.10 In addition to the drawing requirements, Contractor shall furnish a comprehensive outline as to the extent of field fabrication required and as to all temporary wiring, disassembling, reassembling, welding, cleaning, checking, inspection, painting, testing, etc., required to be done by the Erector ................................................................................................

9.3.11 All documents and drawings shall be provided with number of Purchaser order ................................................................................................

9.3.12 Routine, type and special test reports of the VT’s, as well as the insulators tests and oil or SF6 gas, shall be submitted for approval, one month before delivery, in one (1) CD. The shipment cannot be realized before test approval ....................................................................................

9.3.13 Commissioning program in one (1) CD will be sent for approval three months before delivery ....................................................................................

9.3.14 After order the Contractor shall supply a CD with details about installation, safety rules for handling, VT's maintenance procedures and trouble shooting ................................................................................................


B-10

10. TECHNICAL REQUIREMENTS

MANUFACTURER’S OFFERED DATA AND PARAMETERS SHOULD BE FILLED IN AGAINST PURCHASER’S REQUIRED VALUES - AS WELL AS IN THE ABSENCE THEREOF UNDER ALL RELEVANT PARAGRAPHS IN THE FREE COLUMNS OF THE RIGHT HAND SIDE. A DEFINITE ANSWERS (YES OR NO) OR APPROPRIATE COMMENTS SHALL BE GIVEN TO ALL OTHER REQUIREMENTS.

REQUIRED OFFERED

10.1 ENVIRONMENTAL CONSIDERATIONS & SERVICE CONDITIONS

All alternatives

10.1.1 SYSTEM DATA

10.1.1.1 Rated system voltage (line to line) (kV) ................................ 161

10.1.1.2 Highest system voltage (line to line) (kV) 170

10.1.1.3 Neutral connection in the 170 kV systems ................................effectively earthed

10.1.1.4 Earth fault factor ................................................................ 1.4

10.1.1.5 Frequency (Hz) ................................................................ 50

10.1.1.6 Symmetrical short circuit current (kA, r.m.s.) 50

10.1.1.7 Surge impedance(�) ................................................................375

10.1.2 CLIMATIC CONDITIONS

10.1.2.1 Long periods without rain, alternating with high humidity as experienced in coastal or desert areas in this country ....................................................................................

10.1.2.2 Permissible ambient air temperature:

10.1.2.2.1 Maximum (0C) ................................................................ +50 �

10.1.2.2.2 Minimum (0C) ................................................................ -5 �

10.1.2.2.3 Average measured over a period of 24h (0C) ..........................+35 �

10.1.2.3 Permissible humidity:

10.1.2.3.1 Low relative/absolute humidity (%/g/cm2) ................................4/0.9

10.1.2.3.2 High relative/absolute humidity (%/g/cm2)................................100/27


B-11�

REQUIRED OFFERED

10.1.2.4 Rain intensity (mm/min) ...............................................................15

10.1.2.5 Low/high air pressure (KPa) ........................................................84/106

10.1.2.6 Solar radiation: Heating effects of solar radiation (W/m2)

1120

10.1.2.7 Maximum wind velocity measured 10m above grade (bare area) at 3 sec duration (m/sec)2 ................................

44

10.1.3 ENVIRONMENTAL CONDITIONS

10.1.3.1 Environmental parameters according to: ................................ IEC

60721-3-4

10.1.3.2 Severe atmospheric and industrial air pollution, dust, salt spray and sandstorms .............................................................

10.1.3.3 Water from sources other than rain : Spraying water and water jets with water velocity (m/sec) ................................

15

10.1.3.4 Chemically active substances according to: ................................Table IV 4C3

10.1.3.5 Mechanically active substances according to: ..............................Table V 4S3

10.1.3.6 Sand (mg/m3) ................................................................ 1000

10.1.3.6.1 Dust (suspension)(mg/m3). ......................................................15

10.1.3.6.2 Dust (sedimentation) (mg/m3.h) ................................ 40

10.1.4 SPECIAL REQUIREMENTS FOR ENVIRONMENTAL PROTECTION

10.1.4.1 Due to the severe environmental conditions to which the equipment may be subject during its service life, the following requirements for its protection form an integral part of the specification and are in addition to the standard design and protective measures which the manufacturer would normally invoke for these conditions:

2 Considering a 50 years mean return period


B-12�

REQUIRED OFFERED

10.1.4.1.1 When dimensionally and functionally allowable, all steel components of the equipment are to be hot dip galvanized according to ASTM A123 or ASTM A386 or to Israeli Standard 918. The thickness of the zinc

shall be at least 100 �m on average with no

measured thickness to be less than 90 �m.

If dimensional or functional requirements do not allow hot dip galvanizing, steel parts will be electrolytically zinc plated to a minimum measured

thickness of 20 �m. Hot dip galvanized steel will be given a protective paint cover using a zinc dust/zinc oxide primer according to the best commercial practice. Zinc plated steel will be chromate to ASTM B201 Olive Drab finish, or equivalent standard and finish. Metal spraying may be used for protecting steel components, only after approval by the Purchaser.

10.1.4.1.2 Bolts, nuts and washers greater than 1/2" shall be hot dip galvanized according to ASTM A 394 or equivalent. Bolts, nuts and washers up to 1/2" shall be electrolytically zinc plated according to ASTM A 164 or equivalent to a minimum plate thickness of

20�m. Hot dipped as well as electrolytically galvanized nuts, bolts and washers shall be passivated according to ASTM B 201 Olive Drab finish, or equivalent standard and finish.

10.1.4.1.3 Components such as springs, pins and those for which a tight maintained dimensional tolerance is required shall be made of stainless steel. The preferred stainless steel is an austenitic grade; however, if physical requirements are overriding, other stainless steel grades will be acceptable. Austenitic grades will be subject to a solution quenching. Prior to being placed into service all stainless steel components will be cleaned and passivated.

10.1.4.1.4 All aluminum components shall be fabricated from grades of aluminum which show resistance to salt spray and moist conditions; e.g., Al-Mg base alloys. Aluminum-Copper Alloys are not acceptable. After fabrication, all aluminum components shall be anodized to ASTM B 580 Grade 4, or equivalent.

10.1.4.1.5 All copper or copper alloy components shall be electrolytically tinned to ASTM B 579 Grade 4, or equivalent.


B-13�

REQUIRED OFFERED

10.1.4.1.6 Components such as sleeves or bushings which may be fabricated having an inner face of one metal and a supporting outer face of another, or conductors which are used with connectors of a dissimilar metal shall have their exposed interfaces protected against moisture. This protection will be

afforded by an epoxy coating of 450 �m minimum thickness over the exposed bimetallic contact and surrounding area.

10.1.4.1.7 All bearings shall be sealed type bearings. The seal shall be guaranteed to be protective against sand, salt spray and moisture for a minimum period of 10 years.

10.1.4.1.8 Galvanized steel shall be protected by painting (Duplex system), except for threaded items such as nuts and bolts, which will be chromate according to the instructions of the Laboratory of Materials (Israel Electric Corp. Ltd.). The supplier will submit for the approval of the Purchaser the surface preparation and passivation procedures to enable better adhesion of the paint. Adhesion shall be examined according to BS 3900 part E6/74 AMD3893/82 and shall show a result not higher than No.1.

10.1.4.1.9 The supplier may suggest for approval a painting system with the thickness as follows:

10.1.4.1.9.1 Hot dip for internal installations: one layer

thickness of 50 �m.

10.1.4.1.9.2 Hot dip for external installations:

- one layer of primer thickness of 50 �m.

- one layer of finish thickness of 40 �m.

total thickness of 90 �m.

10.1.4.1.9.3 Electrolytically plated internal or external:

- one layer of primer thickness of 50 �m.

- one layer of intermediate thickness of 40 �m.

- one layer of finish thickness of 25 �m.

total thickness of 115 �m.


B-14�

REQUIRED OFFERED

10.1.4.1.10 Every two layers shall be color contrasted. One such system may be based on SSPC SPEC. 2.05/82.

*Primer: TT-P-641, Zinc Dust-Zinc Oxide, Type 2, “Phthalic Alkyd Resin.

*Intermediate: SSPC paint No. 104, white or tinted alkyd paint.

*Finish: SSPC paint No. 104, white or tinted alkyd paint.

10.1.4.1.11 Contractor is requested to describe or indicate deviations (see Clause 15, Annexure “B”) from above requirements. In case no deviations are mentioned it will be understood that Manufacturer’s offer entirely complies with the above mentioned requirements.

10.1.5 SEISMICITY OF THE SITE �

10.1.5.1 Peak horizontal (x, y directions) ground acceleration with a 85% probability not to be exceeded over a 50 years period) .................................................................................

0.5g

10.1.5.2 Vertical severities (z direction) ground acceleration .....................0.25g

10.1.6 OTHER REQUIREMENTS

10.1.6.1 Permissible altitude over the sea level (m) ................................1000

10.1.6.2 Maximum induced electromagnetic disturbances in the secondary system for interface designed as "normal EMC severity class" (kV peak) .......................................................

1.6

10.1.6.3 The Inductive Voltage Transformer shall be vermin proof. .............................................................................................

10.2 RELIABILITY, AVAILABILITY, MAINTAINABILITY

10.2.1 Manufacturer is requested to fill in the enclosed appendices:

10.2.1.1 Appendix 8 - RAM for 170 kV Voltage Transformer Oil Insulated

10.2.1.2 Appendix 9 - RAM for 170 kV Voltage Transformer SF6 Gas Insulated


B-15�

REQUIRED OFFERED

10.3 FUNCTIONAL REQUIREMENTS

10.3.1 The Voltage Transformers and their accessories shall be constructed as to comply with the ratings and to meet all test requirements with respect to insulation strength, current carrying capacity and mechanical operation

10.3.2 The Voltage Transformers shall be substantially in the same mechanical conditions at the termination, as at the beginning, the specified test duties

10.4 PROPERTIES (RATINGS)3

10.4.1 ELECTRICAL DATA FOR VT’s

10.4.1.1 Highest voltage for equipment Um (kV r.m.s) ................................170

10.4.1.2 Rated primary voltage (kV) ...........................................................161/�3 �

10.4.1.3 Secondary windings and destination:

10.4.1.3.1 Secondary windings No.1 and No.2 (Item 1): ...........................Measuring and protection

10.4.1.3.2 Secondary windings No.1, No.2 and No.3 (Item 2): ..................Measuring and protection

10.4.1.4 Rated secondary voltage .............................................................IEC 61869-3

cl.5.301.2��

10.4.1.4.1 Secondary winding No. 1: (V) ...................................................115/�3

10.4.1.4.2 Secondary winding No. 2: (V) ...................................................115/�3

10.4.1.4.3 Secondary winding No. 3: (V) (only for item 2) .........................115/�3

10.4.1.5 Accuracy class of secondary windings: IEC 61869-3

cl.5.6 �

10.4.1.5.1 ITEM 1: ....................................................................................

10.4.1.5.1.1 Secondary winding No. 1: ......................................................0.2 (3P)

3 The terminology used in this section is in general according to IEC Publication 61869-1/2007

and IEC 61869-3/2011.


B-16�

REQUIRED OFFERED


10.4.1.5.2 ITEM 2: ....................................................................................




10.4.1.6 Rated output to be supplied to the secondary circuit at a power factor of 0.8 lagging: ....................................................

IEC 61869-3

cl.5.5.301 �

10.4.1.6.1 ITEM 1 .....................................................................................

10.4.1.6.1.1 Secondary winding No. 1 (VA) ................................100


10.4.1.6.1.3 Total simultaneous load in specified accuracy class (VA) ................................................................................

200

10.4.1.6.2 ITEM 2 .....................................................................................




10.4.1.6.2.4 Total simultaneous load in specified accuracy class (VA) ................................................................................

300

10.4.1.7 Rated frequency (fR)(Hz) .............................................................50

10.4.1.8 Rated voltage factor: ................................................................IEC 61869-3

cl.5.302 �

10.4.1.8.1 Continuous not less than: .........................................................1.2

10.4.1.8.2 30 sec not less than: ................................................................1.5

10.4.1.9 Class of insulation: IEC 60085/2007

10.4.1.9.1 For alternatives A&C ................................................................A


B-17�

REQUIRED OFFERED

10.4.1.9.2 For alternatives B&D ................................................................E

10.4.1.10 Rated primary terminal insulation level acc. to............................IEC 61869-1 & IEC 61869-3

cl.5.3

10.4.1.10.1 Rated lightning impulse withstand voltage for primary winding (kV peak) ..........................................................

750�

10.4.1.10.2 Rated power-frequency withstand voltage for primary winding (kV r.m.s.) ........................................................

325�

10.4.1.10.3 Chopped lightning impulse withstand voltage for primary winding (kV peak) ..........................................................

860

10.4.1.10.4 Rated power-frequency withstand voltage for the earthed terminal of primary winding (kV r.m.s.) ..........................

3�

10.4.1.11 The partial discharge level shall not exceed: IEC 61869-1 cl.5.3.3.1

10.4.1.11.1 At Um (pC) ................................................................ 10

10.4.1.11.2 At 1.2 x Um/�3 (pC) ................................................................5

10.4.1.12 Calculated capacitance between primary winding and earth .......................................................................................

10.4.1.12.1 ITEM 1 ....................................................................................

10.4.1.12.1.1 Alternative A (pF) ................................................................

10.4.1.12.1.2 Alternative B (pF) ................................................................

10.4.1.12.1.3 Alternative C (pF) ................................................................

10.4.1.12.1.4 Alternative D (pF) ................................................................

10.4.1.12.2 ITEM 2 ....................................................................................

10.4.1.12.2.1 Alternative A (pF) ................................................................

10.4.1.12.2.2 Alternative B (pF) ................................................................

10.4.1.12.2.3 Alternative C (pF) ................................................................

10.4.1.12.2.4 Alternative D (pF) ................................................................


B-18�

REQUIRED OFFERED

10.4.1.13 Calculated capacitance between primary winding and secondary winding (pF) ..........................................................

10.4.1.13.1 ITEM 1 ....................................................................................

10.4.1.13.1.1 Alternative A (pF) ................................................................

10.4.1.13.1.2 Alternative B (pF) ................................................................

10.4.1.13.1.3 Alternative C (pF) ................................................................

10.4.1.13.1.4 Alternative D (pF) ................................................................

10.4.1.13.2 ITEM 2 ....................................................................................

10.4.1.13.2.1 Alternative A (pF) ................................................................

10.4.1.13.2.2 Alternative B (pF) ................................................................

10.4.1.13.2.3 Alternative C (pF) ................................................................

10.4.1.13.2.4 Alternative D (pF) ................................................................

10.4.1.14 Capacitance between top and capacitive tap (pF) .....................

10.4.1.15 Capacitance between capacitive tap and earth (pF) ...............................................................................................

10.4.1.16 The dielectric dissipation factor for alternatives A&C

shall not exceed at Um/�3 .............................................................

0.005�

10.4.1.17 The rated power frequency withstand voltage of the insulation between sections (kV r.m.s) ................................

3�

10.4.1.18 The rated power frequency voltage for secondary windings insulation (kV r.m.s) ........................................................

3�

10.4.2 OTHER REQUIREMENTS ALL ITEMS

10.4.2.1 Limits of temperature rise of VT at +50�C ambient air

temperature (values in table 5 minus 10�K) acc. to .......................

IEC 61869-3 cl.6.4.1

10.4.2.1.1 Alternatives A&C (VT immersed in oil and hermetically sealed) ................................................................

10.4.2.1.1.1 temperature rise at top of tank or housing not

more than (�K) ................................................................ 45


B-19�

REQUIRED OFFERED

10.4.2.1.1.2 Maximum temperature rise of windings at a burden corresponding to the thermal limiting output and continuous rated voltage factor shall not

exceed (�K) ................................................................ 55

10.4.2.1.1.3 Maximum temperature rise of windings at a voltage factor 1.5 for "30 sec", starting after the application of 1.2 times rated voltage shall not

exceed (�K) ................................................................ 65

10.4.2.1.2 Alternatives B&D (VT with SF6 gas insulation) ..........................

10.4.2.1.2.1 Maximum temperature rise of windings at a burden corresponding to the thermal limiting output and continuous rated voltage factor shall not

exceed (�K) ................................................................

65

10.4.2.1.2.2 Maximum temperature rise of windings at a voltage factor 1.5 for "30 sec", starting after the application of 1.2 times rated voltage shall not

exceed (�K) ................................................................

75

10.4.2.1.3 Limits of temperature rise of connections at +50�C ambient air temperature shall be acc. to: ................................

(values in table 5 minus 10�K)

IEC 61869-1 /2007

Table 5

10.4.2.2 Thermal limiting output for each secondary winding without exceeding the limits of temperature rise:

10.4.2.2.1 Item 1 .......................................................................................

10.4.2.2.1.1 Winding No. 1 (kVA) ..............................................................

10.4.2.2.1.2 Winding No. 2 (kVA) ..............................................................

10.4.2.2.1.3 Total simultaneous load (kVA) ................................

10.4.2.2.2 Item 2 .......................................................................................

10.4.2.2.2.1 Winding No. 1 (kVA) ..............................................................

10.4.2.2.2.2 Winding No. 2 (kVA) ..............................................................

10.4.2.2.2.3 Winding No. 3 (kVA) ..............................................................

10.4.2.2.2.4 Total simultaneous load (kVA) ................................


B-20�

REQUIRED OFFERED

10.4.2.3 Each winding shall fulfill its respective accuracy requirements within its output range, while at the same time other winding has an output of any value from 0 to 100% of the upper limit of the output range specified for the other winding ................................................................

10.4.2.4 The voltage transformers shall be designed to withstand without damage when energized at rated voltage, the mechanical and thermal effects of an external short-circuit of 50 kA r.m.s. for duration of 1 sec ...............................................................................................

10.4.2.5 The RIV shall not exceed at 1.1xUm/�3 (�V) ................................2500

10.4.2.6 Transmitted overvoltage from the primary to the secondary terminals shall be less than (kV) ................................

1.6 4

10.4.2.7 Seismic Qualification level acc. to IEEE 693 ...............................

or IEC 62271-207/2012 .........................................................

Moderate level

AF5

10.5 DESIGN AND CONSTRUCTION ALL ITEMS

10.5.1 GENERAL REQUIREMENTS

10.5.1.1 All inductive VT's must be designed so as to be able to drain the trapped charge. Initially assumed to be 1.5 p.u. to values lower than 0.2 p.u. in the following:

10.5.1.1.1 The VT connected directly to a 170 kV overhead line up to 125 km long. ................................................................

10.5.1.1.2 The VT connected to a 170 kV by XLPE cable up to 20 km long. .................................................................................

10.5.1.2 The VT's shall have the capability to withstand thermally and mechanically two successive drainages of the line in above alternatives, the second of which occurs immediately after the first one ................................

10.5.1.3 The characteristics of the 170 kV double circuit transmission lines, to which VT's will be connected are as follow:

4 Type A of impulse, acc. to IEC 61869-1 Table 9.


B-21�

REQUIRED OFFERED

10.5.1.3.1 Transmission line:

R1= 0.04 �/km (positive seq.)

X1= 0.383 �/km (positive seq.) C1= 9.682 nF/km (positive seq.)

R0= 0.186 �/km (zero seq.)

X0= 1.479 �/km (zero seq.) C0= 6.145 nF/km (zero sequence)

RM= 0.0487 �/km

XM= 0.3653 �/km

10.5.1.3.2 Cable line:

R1= 0.0138 �/km (positive seq.)

X1= 0.1856 �/km (positive seq.)

R0= 0.0639 �/km (zero seq.)

X0= 0.0517 �/km (zero seq.) CE= 288 nF/km

10.5.1.4 Discharge withstand capability test will be performed. Describe method and supply the test report ................................

10.5.1.5 Voltage transformer is guaranteed suitable for discharge withstand capability taking into account line characteristics as stated above .....................................................

10.5.1.6 The following data shall be indicated by Manufacturer for the ferroresonance study: ........................................................

10.5.1.6.1 Leakage inductance for primary winding (H) ............................

10.5.1.6.2 Leakage inductance for secondary windings (H/H) ...................

10.5.1.6.3 Resistance for primary winding (�) ................................

10.5.1.6.4 Resistance for secondary windings ................................

10.5.1.6.4.1 Item 1 (�/�) ................................................................

10.5.1.6.4.2 Item 2 (�/�/�)................................................................

10.5.1.6.5 Magnetizing curve taking into consideration the following:

10.5.1.6.5.1 The uniform scale representation is preferred instead of logarithmic one .........................................................


B-22�

REQUIRED OFFERED

10.5.1.6.5.2 The magnetizing curve shall be measured directly on the core and not on the assembled VT (without the influence of primary winding capacitance) ................................................................

10.5.1.6.5.3 Magnetizing curve will be sent as Upeak(or �peak) versus Ipeak ................................................................................

10.5.1.6.5.4 Magnetizing curve up to 2 p.u.(measured values and extrapolated up to 4 p.u. of the magnetic flux or dynamic saturation inductivity for 3.5-4 p.u. ............................

10.5.1.6.5.5 Hysteresis curve ................................................................

10.5.1.6.6 Equivalent resistance of the magnetic core power losses or magnetic core power losses dependence on the peak value of the magnetizing branch voltage taking into consideration the following:

10.5.1.6.6.1 The uniform scale representation is preferred instead of logarithmic one .........................................................

10.5.1.6.6.2 Rfe=f(Upeak) or Pfe=f1(Upeak) where Upeak is the peak value of the magnetizing branch voltage ................................

10.5.1.6.6.3 Core power losses including both eddy-current and hysteresis power losses ....................................................

10.5.1.6.7 Secondary loads (indicate the respective power factor cos �) ................................................................

10.5.1.6.8 Indicate if steps shall be taken (screenings, special type of earthing) to reduce overvoltage between terminals of secondary windings and earth to safe value on switching the VT on and off at rated voltage and during atmospheric over voltages. ................................

10.5.2 INSULATING MEDIUM

10.5.2.1 Insulating medium for VT in Alternatives A&C ..............................Oil/paper


B-23�

REQUIRED OFFERED

10.5.2.1.1 The unused insulating oil for the voltage transformer should have the characteristics of inhibited oil according to: ................................................................

IEC 60296 and Table 2 in

Appendix 5

10.5.2.1.2 Type of oil acc. to Appendix 55 .................................................

10.5.2.1.3 Amount of oil per VT (kg) ..........................................................

10.5.2.2 Insulating medium for VT in Alternatives B&D ..............................SF6 gas

10.5.2.2.1 The VT’s shall be designed for use with SF6 gas complying with provisions acc. to: ................................

IEC 60376 �

10.5.2.2.2 SF6 gas Manufacturer ...............................................................

10.5.2.2.3 Type ..........................................................................................

10.5.2.2.4 A biological test for non-toxicity of the SF6 gas shall be carried out, acc. to: ...............................................................

IEC 60376 Cl.6.2.2

10.5.2.2.5 Rated filling pressure (bar rel) ..................................................

10.5.2.2.6 Minimum functional pressure used for insulation routine tests (bar rel) ................................................................

10.5.2.2.7 The critical pressure at which an alarm signal will be given at 200C (bar rel) ................................................................

10.5.2.2.8 Rated filling density (g/l) ...........................................................

10.5.2.2.9 The critical density at which the alarm signal will be given (g/l) ...................................................................................

10.5.2.2.10 Dielectric strength at rated density (kV/cm) ............................

10.5.2.2.11 Dew point temperature of water vapor content in SF6 gas in the installed VT determined, acc. to IEC 60376 not more than (0C) ...........................................................

-5

10.5.2.2.12 Maximum permissible water vapor content at rated operating pressure at 200C in VT (ppmv) ................................

10.5.2.2.13 SF6 gas pressure during transport (bar rel) ............................

5 Other oil types can be used only with IECo's approval.


B-24�

REQUIRED OFFERED

10.5.2.2.14 Amount of SF6 gas per assembled VT at rated pressure and 200C ................................................................

10.5.2.2.15 Amount of SF6 gas supplied by manufacturer (kg) ............................................................................................

10.5.3 SEALING

10.5.3.1 For VT in alternatives A&C:

10.5.3.1.1 The Voltage Transformers of oil filled construction shall be completely sealed from the atmosphere and suitable for vertical mounting with primary connections at top ................................................................

10.5.3.1.2 Sealing against penetration of moisture according to one of the following methods:

10.5.3.1.2.1 Gas above oil (indicate gas) ..................................................

10.5.3.1.2.2 Positive bellows (indicate material) ................................

10.5.3.1.2.3 Others ....................................................................................

10.5.3.1.3 In case bellows is used the Voltage Transformer shall be equipped with a bellows position indicator .....................

10.5.3.1.4 In case gas above oil is used the Voltage Transformer shall be equipped with oil level indicator .................

10.5.3.1.4.1 Gas pressure (N/cm2) ............................................................

10.5.3.1.5 The indicators mentioned above shall be weatherproof with corrosion resistance class C4 ........................

10.5.3.1.6 Clear indication of normal and danger zone shall be provided by bellows position indicator or by the manometer and oil level indicator ................................................

10.5.3.1.7 The indications of the devices mentioned above shall be easily readable from ground level even when the Voltage Transformer is installed on its supporting structure ......................................................................................

10.5.3.1.8 The bushing of the secondary leads shall be such as to prevent any penetration of air to the oil space, in case of damage to the secondary connections ........................


B-25�

REQUIRED OFFERED

10.5.3.1.8.1 Please indicate the material of secondary leads bushing .....................................................................................

10.5.3.2 For VT in alternatives B&D:

10.5.3.2.1 All gas seals shall be designed to ensure that leakage rates are kept to an absolute minimum under all normal pressure, temperature, electrical load and fault conditions .............................................................

10.5.3.2.2 The seals shall not be deteriorated when are exposed to the gas and vapors, as well as to temperature variations and mechanical forces that can be expected ................................................................

10.5.3.2.3 Type of materials of gas seals ...................................................

10.5.3.2.4 Time between refilling (years) ...................................................

10.5.3.2.5 Permissible total SF6 gas losses (%/year) ................................0.1

10.5.3.2.6 The bushing of the secondary leads shall be such as to prevent any penetration of air to the SF6 space, in case of damage to the secondary connections ........................

10.5.3.2.6.1 Please indicate the material of secondary leads bushing .....................................................................................

10.5.4 PROTECTION AGAINST OVERPRESSURE


10.5.4.1.1 Measures to achieve burst protection on upper and bottom sides of voltage transformer (description, mode of operation and drawing shall be included) ......................


10.5.4.2.1 Type of pressure relief device ...................................................

10.5.4.2.2 A protective cover shall be provided for pressure relief device to prevent pieces of diaphragm from flying out or any dangerous SF6 arc produce gases escaping in a manner that could endanger personnel who may be present ................................................................

10.5.4.2.3 Operating pressure of pressure relief device (bar rel) ....................................................................................


B-26�

REQUIRED OFFERED

10.5.4.2.4 Design pressure of the enclosure (bar rel) ................................

10.5.5 ACCESSORIES AND FITTINGS

10.5.5.1 The voltage transformers shall be with minimum four mounting holes on the transformer base ................................


10.5.5.2.1 Drain valve ................................................................................

10.5.5.2.2 Means of sampling the oil ..........................................................


10.5.5.3.1 Filling valve type DILLO ............................................................

10.5.5.3.2 Means of sampling the SF6 gas .................................................

10.5.5.3.3 Gas monitoring:

10.5.5.3.3.1 The insulating capacity of the SF6 gas insulated VT shall be monitored with temperature compensated pressure gauge (indicate type) ..........................

10.5.5.3.3.2 The monitoring devices shall provide continuous monitoring of the state of the gas ................................

10.5.5.3.3.3 The monitoring device shall be equipped with 2 signaling contacts ................................................................

10.5.5.3.3.4 The monitoring device shall have the loss of SF6 setting. Please indicate the value (bar. rel) ..............................

10.5.5.3.4 Special test connection should be provided with the monitoring device in order to check the device without dismounting it. ................................................................

10.5.5.3.5 A protective cover shall be provided for the monitoring device to prevent mechanical damage and direct sunlight ................................................................

10.5.5.3.6 Gas Treatment Device Constructional measures for controlling moisture increase in SF6 gas, or to remove the impurities:

10.5.5.3.6.1 Static filters ................................................................


B-27�

REQUIRED OFFERED

10.5.5.3.6.2 Dynamic filters ................................................................

10.5.5.3.6.3 Sealing rings with large diffusion lengths ................................

10.5.5.3.6.4 Desiccants ................................................................

10.5.5.3.6.5 Drier .......................................................................................

10.5.5.3.6.6 Other measures ................................................................

10.5.6 TERMINALS

10.5.6.1 Primary terminals ................................................................

10.5.6.1.1 Flat horizontal aluminum primary terminals shall be provided acc. to: ................................................................(indicate type) ................................................................

DIN 46206 Blatt3

10.5.6.1.2 Surface contact of primary terminals (mm2) according to drawing No: ............................................................

10.5.6.2 Earthing terminals ................................................................

10.5.6.2.1 Each Voltage Transformer shall be equipped with two terminals for earthing ............................................................

10.5.6.2.2 The earthing terminals shall be marked with earth symbol acc. to ................................................................

IEC 60417

10.5.6.2.3 The earthing terminals shall be designed to withstand for 1 sec a short-time current of (kA) ...........................

50 �

10.5.6.2.4 Indicate the material of earthing terminal ................................Copper or stainless steel

10.5.6.2.5 Earthing terminal contact surface (mm2). ................................

Indicate drawing No. ..................................................................................

10.5.7 INSULATORS

10.5.7.1 The insulators shall be porcelain (Alternatives A&B) or composite insulators (Alternatives C&D)……………….

10.5.7.2 Alternatives A&B (Porcelain insulators):


B-28�

REQUIRED OFFERED

10.5.7.2.1 Outdoor heavy duty, high grade, high creepage-path type, porcelain insulator suitable for the climatic, environmental and atmospheric conditions as described under Clause 10 shall be provided6

10.5.7.2.2 The insulators shall be "anti-fog" profiles of the alternate sheds or normal sheds type (according to fig. 4b or 5b in IEC 60815-2 and the enclosed drawings on pages B-40 and B-41) greasing and cleaning to all surfaces permitting easy access for greasing and cleaning to all surfaces ................................

10.5.7.2.3 The insulators shall be only “windformed” type not “drop shaped edge” ................................................................

10.5.7.2.4 Please indicate on enclosed drawings all dimensions required ................................................................

10.5.7.2.5 Porcelain Manufacturer .............................................................

10.5.7.2.6 Type of insulator: ................................................................

10.5.7.2.7 Rated voltage (kV): ................................................................170

10.5.7.2.8 Color .........................................................................................Grey

10.5.7.2.9 Voltage test values for insulator:

10.5.7.2.9.1 Dry lightning impulse 1.2/50�s wave (kV peak) ......................750�

10.5.7.2.9.2 Power frequency voltage withstand test 1 min (kV r.m.s.) .......................................................................................

325�

10.5.7.2.10 All other relevant tests shall be carried out, acc. to: IEC 62155

10.5.7.2.11 Reference unified specific creepage distance7 (RUSCD):

53.7

mm/kV�

10.5.7.2.11.1 Phase to ground not less than (mm) ................................5270

�

6 Type B of pollution severity and SPS class e (very heavy) as defined by IEC 60815-1/2008

�7 The required value are for insulator with average medium diameter Da<300mm


B-29�

REQUIRED OFFERED

10.5.7.2.12 Corrected unified specific creepage distance USCD for insulator diameter (Kad) ................................

10.5.7.2.13 Arcing distance (A) not less than8 (mm): ................................1500

10.5.7.2.14 Minimum failing load-bending (F) (N): ................................

10.5.7.2.15 Guaranteed mean value of failing load 120% F not less than (N) ................................................................

10.5.7.2.16 Failing load-torsion (Nm): .......................................................

10.5.7.2.17 The material used in attaching the flange to porcelain insulator shall be such as to form a slanted circular zone at the upper part of the flange and above it so as not to permit water accumulation, (see drawing on page B-43). Any change in shape with aging of material in that zone shall be unacceptable. Manufacturer is required to paint the inside zone of the flange (primer) and to send drawing with details, about type of materials used (bonding material, primer, final paint, etc.) ..............................................................

10.5.7.2.18 Design pressure only for alt. B ................................................

10.5.7.2.19 Max SF6 gas pressure only for alt. B ................................

10.5.7.3 Alternatives C&D (Composite insulators):

10.5.7.3.1 Outdoor heavy duty, high grade, high creepage-path type, composite insulators, suitable for the climatic, environmental and atmospheric conditions as described under Clause 10 shall be provided9 ........................

HTV Silicon rubber

10.5.7.3.2 The insulators shall be "anti-fog" profiles of the alternate sheds or normal sheds type (according to fig. 2a or fig. 6 in IEC 60815-3 and the enclosed drawings on pages B-41 and B-42) permitting easy access for cleaning to all surfaces ................................

8 In case of lower value than 1500 mm, the impulse and power frequency test reports for

offered insulator shall be provided to prove that the insulation withstand conditions are fulfilled. 9 Type B of pollution severity and SPS class e (very heavy) as defined by IEC 60815-1/2008�


B-30�

REQUIRED OFFERED

10.5.7.3.3 The insulators shall be only “windformed” type ..........................

10.5.7.3.4 Please indicate on enclosed drawings all dimensions required ................................................................

10.5.7.3.5 Manufacturer of composite insulator ................................

10.5.7.3.6 Type of insulator: ................................................................

10.5.7.3.7 Rated voltage (kV): ................................................................170

10.5.7.3.8 Color .........................................................................................grey

10.5.7.3.9 Voltage test values for insulator:

10.5.7.3.9.1 Dry lightning impulse 1.2/50�s wave (kV peak) ......................750�

10.5.7.3.9.2 Power frequency voltage withstand test 1 min (kV r.m.s.) .......................................................................................Please describe the procedure of test. The test will be performed with the maximum permissible hydrophobicity class of surface insulator

325

�

10.5.7.3.10 Reference unified specific creepage distance10 (RUSCD): ...................................................................................

53.7

mm/kV�

10.5.7.3.10.1 Phase to ground not less than (mm) ................................5270

�

10.5.7.3.11 Corrected unified specific creepage distance USCD for insulator diameter (Kad) taking into consideration fig 7b in IEC 60815-3, for HTM (hydrophobicity transfer materials) with possible loss of hydrophobicity: ................................................................

10.5.7.3.12 Arcing distance(A) not less than11 (mm) ................................1500

10.5.7.3.13 The design of insulator will be only: ................................Tube type

10 The required value are for insulator with average medium diameter Da<300mm. 11

In case of lower value than 1500 mm, the impulse and power frequency test reports for offered insulator shall be provided to prove that the insulation withstand conditions are fulfilled.


B-31�

REQUIRED OFFERED

10.5.7.3.14 Describe the manufacturing process of composite insulator in separate document: .................................................

10.5.7.3.14.1 Method vulcanization ............................................................HTV

10.5.7.3.14.2 Type of inorganic fillers added to polymer materials and concentration ......................................................

10.5.7.3.15 Describe the mechanism of hydrophobicity transfer and recovery and include details in connection with: ..................

10.5.7.3.15.1 Losing and recovery of hydrophobicity in time ......................

10.5.7.3.15.2 Losing and recovery of hydrophobicity in polluted conditions .................................................................................

10.5.7.3.15.3 Losing and recovery of hydrophobicity under rain conditions .................................................................................

10.5.7.3.15.4 Changing of dielectric withstand characteristics at losing and recovery of hydrophobicity characteristic ................................................................

10.5.7.3.16 Send drawings with all the dimensions required and with manufacturing tolerances ................................

10.5.7.3.17 Materials:

10.5.7.3.17.1 Housing ................................................................................

10.5.7.3.17.1.1 Thickness of the housing(mm) ................................

10.5.7.3.17.2 Interface:

10.5.7.3.17.2.1 Between glass fibers and impregnating resin ....................

10.5.7.3.17.2.2 Between tube and housing ................................................

10.5.7.3.17.2.3 Between various parts of the housing: between sheds and sheath ...............................................................

10.5.7.3.17.2.4 Between housing, tube and end fittings .............................

10.5.7.3.17.3 Tube .....................................................................................

10.5.7.3.17.4 End fitting ................................................................


B-32�

REQUIRED OFFERED

10.5.7.3.18 The material used in design of composite insulator (For example see drawing on page B-44) ................................

10.5.7.3.19 Specify the surface hydrophobicity level of the hollow insulator material at the time of installation acc. to: Indicate the measurement method and send test report. Indicate also the difference between hydrophobicity level of upper and lower shed surface, if applicable ................................................................Send also a graph including hydrophobicity distribution along the length of insulator ................................

IEC 62073

10.5.7.3.20 Specify the loss of hydrophobicity of sheds versus time, the loss of hydrophobicity in polluted zone and ability to recover hydrophobicity after loss ................................

10.5.7.3.21 Electric field level near end fittings (kV/cm) ............................

10.5.7.3.22 Recommended method to detect on site the defective insulators (send technical description) ........................

10.5.7.3.23 Limits of temperature inside the tube (highest/lowest) (0C/0C) ..............................................................

10.5.7.3.24 Tube characteristics: ..............................................................

10.5.7.3.24.1 External diameter (mm) .......................................................

10.5.7.3.24.2 Internal diameter (mm) ........................................................

10.5.7.3.24.3 Wall thickness (mm) ............................................................

10.5.7.3.24.4 Specified Mechanical load (SML) at room temperature (N) ................................................................

>9165

10.5.7.3.24.4.1 Deflection under bending load of SML (tube in irreversible plastic phase) (mm) ................................

10.5.7.3.24.4.2 Residual deflection after release of the above load (mm) ................................................................

10.5.7.3.24.5 Maximum Mechanical Load (MML) (N) ................................>3665

10.5.7.3.24.5.1 Deflection under bending load (MML) (mm)

10.5.7.3.24.5.2 Deflection under bending load 1.5xMML (tube in elastic phase) (mm) ........................................................


B-33�

REQUIRED OFFERED

10.5.7.3.24.6 Specified internal pressure (SIP) (Mpa) ...............................

10.5.7.3.24.7 Maximum service pressure (MSP) (Mpa) ............................

10.5.7.3.24.8 Maximum permissible axial stress (Mpa) .............................

10.5.7.3.24.9 Maximum residual strain after bending load:

10.5.7.3.24.9.1 At MML load (µm/m) .........................................................

10.5.7.3.24.9.2 At damage limit load (µm/m) ................................

10.5.7.3.24.9.3 At SML load (µm/m) .........................................................

10.5.7.3.24.10 Maximal tube residual deflection under bending load:

10.5.7.3.24.10.1 At MML load (mm) ..........................................................

10.5.7.3.24.10.2 At damage limit load (mm) ................................

10.5.7.3.24.10.3 At SML load (mm) ..........................................................

10.5.7.3.24.10.4 Specific deflection of the tube used for calculation of permissible deflection12 (mm/kN x m3) ......................................................................................

10.5.7.3.24.11 Other method to determine the onset of deterioration (if applicable) ......................................................

10.5.7.3.25 Indicate if the influence of solar radiation is included in calculation of MSP ....................................................

10.5.7.3.26 Indicate method of attaching the metal end-fitting to the tube ...................................................................................Describe also the checking methods ................................

10.5.7.3.27 Indicate the sealing system for composite hollow insulator ......................................................................................

12 Deflection (mm) = specific deflection (mm/kN � m3) x bending load (kN) x (length [m]3)


B-34�

REQUIRED OFFERED

10.5.7.3.28 Indicate if decomposition product resulted from interactions between interior surface of the tube and gaseous or liquid insulation materials................................

10.5.8 STRUCTURAL SUPPORT AND ASSOCIATED STEEL WORK

10.5.8.1 The Contractor shall supply all the steelwork necessary for fixing and supporting the VT ................................

10.5.8.2 The design of supporting steel structure shall permit total accessibility. Indicate if supporting structure is different for each Item and send drawings ................................

10.5.8.3 All metallic frames (supporting structures, etc.) shall be included in the VT scope of supply ................................

10.5.8.4 The finish and painting of the structural support and associated steel work shall be according to Appendix 10 and shall enable withstanding the service conditions under cl 10.1.2 .............................................................

10.5.8.5 Hot dip parts .................................................................................

10.5.8.5.1 Hot dip galvanized thickness (µm) ................................ Average 90

10.5.8.5.2 The painting shall be acc. to Appendix 10 cl. 3.2.1 in one of the following painting system:

10.5.8.5.2.1 Liquid paints – Epoxy polyamide (µm) ................................70 + 50

10.5.8.5.2.2 Electrostatic power painting (µm) ................................80

10.5.8.6 Electrolytically galvanizing parts with minimum zinc layer (µm) ......................................................................................

20

10.5.8.6.1 The painting of outdoor parts shall be acc. to Appendix 10 cl. 3.2.2 in one of the following painting system: .......................................................................................

10.5.8.6.1.1 Liquid paints – Epoxy polyamide (µm) ................................and two component aliphatic polyurethane (µm) .......................

100 50

10.5.8.6.1.2 Electrostatic power painting (µm) ................................80

10.5.9 STRESSES ON MOUNTED VOLTAGE TRANSFORMERS INCLUDING STEEL SUPPORTING STRUCTURE

Alt

A&B

App.6

Alt

C&D

App.7


B-35�

REQUIRED OFFERED

10.5.9.1 Permissible values of loading for terminals ................................�

10.5.9.1.1 Static terminal load (sum of all loads occurring simultaneously in service: conductor pull, conductor weight and wind force on conductor) in any direction in space not less than: (N) .........................................................

2400

10.5.9.1.2 Testing load for 60 sec. Applied to the midpoint of the terminal, perpendicular to the bushing axis (N) ....................

3500

10.5.9.1.3 Short - time load (sum of all loads occurring simultaneously in case of service and short-circuit, without seismic forces) in any direction in space not less than (N): ................................................................

5500

10.5.9.2 Wind load at wind velocity of 44 m/sec acc. to: (N)

10.5.9.3 Seismic forces acc. to IEEE 693-2005 Moderate level

10.5.9.3.1 Simultaneous earthquake acceleration applied at the base of the voltage transformer taking into consideration seismicity of the site acc. to subcl 10.1.5 and mounting of the VT on support at 2.5 m height and 100 kg weight. (see appended support drawing B-45) ................................

10.5.9.3.1.1 Horizontal (m/s) ................................................................

10.5.9.3.1.2 Vertical (m/s) ................................................................

10.5.9.3.1.3 Testing methods used (indicate standard denomination and number) ......................................................

10.5.9.3.2 Safety factors of VT insulators taking into consideration the requirements under subcl. 10.5.9.1 for each item of offered VT including steel pedestal: ...................

A&B C&D

10.5.9.3.2.1 Condition 1 – routinely expected load including - design pressure 100% - mass 100%, - rated terminal load 100% (tensile force on conductors, weight of conductors and load due to wind on conductors) - load do to wind on VT 30%

> 2.1


B-36�

REQUIRED OFFERED

10.5.9.3.2.2 Condition 2 – rarely occurring extreme loads including: - design pressure 100% - mass 100%, - rated terminal load 50% (tensile force on conductors, weight of conductors and load due to wind on conductors), - load do to wind on VT 100%, - short circuit load 100%

> 1.5

10.5.9.3.2.3 Condition 3 – rarely occurring extreme loads including: - design pressure 100% - mass 100%, - rated terminal load 70% (tensile force on conductors, weight of conductors and load due to wind on conductors), - load do to wind on VT 10%, - seismic load 100%

> 1.2

10.5.10 SECONDARY TERMINAL BOX

10.5.10.1 All wiring for connection to Purchaser’s cable shall be terminated at terminal blocks enclosed in a terminal box having environmental protection degree ................................

IEC 60529 IP 54

10.5.10.2 The protection against mechanical impact should be acc. to: ..........................................................................................

IEC 62262 IK10

10.5.10.3 The terminals for external connections shall be made of thermosetting plastic material (melamine) ......................

10.5.10.4 Type of terminals shall be: (16mm2, 500V) Phoenix UK-16N

or equivalent

10.5.10.5 The terminal blocks shall be spaced to allow ample clearance on all sides). ................................................................

10.5.10.6 Cross section of secondary circuits connected to voltage transformers (mm2). ). .......................................................

2.5

10.5.10.7 The wires shall be with XLPE insulation for 1000V rated voltage .................................................................................


B-37�

REQUIRED OFFERED

10.5.10.8 Each terminal block shall be provided with not less than 10% spare terminals ..............................................................

10.5.10.9 All wiring insulation and terminal blocks shall be flameproof protected, according to: ................................

ASTM D635

10.5.10.10 The destination of each winding shall be clearly indicated at the terminals. ............................................................

10.5.11 WINDINGS

10.5.11.1 Material of primary winding.........................................................

10.5.11.2 Cross section of primary winding (mm²) ................................

10.5.11.3 Material of secondary winding ....................................................

10.5.11.4 Cross section of secondary winding (mm²) ................................

10.5.12 DIMENSIONS AND WEIGHTS

10.5.12.1 Dimensions drawings for each item ................................

10.5.12.2 Minimum recommended clearance in air:

10.5.12.2.1 Between phase-axes (mm) ......................................................

10.5.12.2.2 Between live parts to earth (mm) ................................

10.5.12.2.3 Between VT primary terminals to the bottom of the steel pedestal (mm)

10.5.12.2.4 Between VT primary terminals to the top of the steel pedestal (mm)

10.5.12.3 Net weight of each voltage transformer including insulating medium:

10.5.12.3.1 ITEM 1:

10.5.12.3.1.1 Alternative A (Kg) ................................................................

10.5.12.3.1.2 Alternative B (Kg) ................................................................

10.5.12.3.1.3 Alternative C (Kg) ................................................................

10.5.12.3.1.4 Alternative D (Kg) ................................................................


B-38�

REQUIRED OFFERED

10.5.12.3.2 ITEM 2:

10.5.12.3.2.1 Alternative A (Kg) ................................................................

10.5.12.3.2.2 Alternative B (Kg) ................................................................

10.5.12.3.2.3 Alternative C (Kg) ................................................................

10.5.12.3.2.4 Alternative D (Kg) ................................................................

10.5.12.4 Weight of oil:

10.5.12.4.1 Alternative A (Kg) ................................................................

10.5.12.4.2 Alternative C (Kg) ................................................................

10.5.12.5 Weight of SF6 gas:

10.5.12.5.1 Alternative B (Kg) ................................................................

10.5.12.5.2 Alternative D (Kg) ................................................................


B-39

�

170 kV VOLTAGE TRANSFORMER

PORCELAIN INSULATOR - ALTERNATE-SHEDS

REQUIRED

OFFERED

P1-P2 > 15 mm P1-P2 =

S/P1 > 0.65 S/P1 =

C > 40 mm C =

� = 5�-10� � =

Kad = 1 Kad =

Da < 300 mm Da =

RUSCD �53.7 mm/kV l =

L � 5270 mm L =

L/A < 3.51 L/A =

l1/d1 < 4.5 l1/d1 =

l2/d2 < 4.5 l2/d2 =

Kad = Correction factor of the RUSCD for insulator diameter

Da = (Ds1+Ds2+2Dt)/4.

RUSCD = Reference unified specific creepage distance phase to ground.

L = Phase to ground external creepage distance.

A = Arcing distance.


B-40

�


PORCELAIN INSULATOR- NORMAL-SHEDS

REQUIRED

OFFERED

S/P > 0.65 S/P =

C > 30 mm C =

� = 5�-10� � =

Kad = 1 Kad =

Da < 300 mm Da =


L � 5270 mm L =

L/A < 3.51 L/A =

l/d < 5 l/d =

�

Kad = Correction Factor for insulator diameter of the RUSCD

Da = (Dt+Ds1)/2

RUSCD = Reference unified specific creepage distance phase to ground




B-41

�


COMPOSITE INSULATOR - ALTERNATE-SHEDS

REQUIRED

OFFERED

P1-P2 > 15 mm P1-P2 =

S/P1 > 0.65 S/P1 =

C > 40 mm C =

� = 5�-10� � =

Kad = 1 Kad =

Da < 300 mm Da =


L � 5270 mm L =

L/A < 3.51 L/A =

l1/d1 < 4.5 l1/d1 =

l2/d2 < 4.5 l2/d2 =

Kad = Correction factor of the RUSCD for insulator diameter

Da = (Ds1+Ds2+2Dt)/4.

RUSCD = Reference unified specific creepage distance phase to ground.




B-42

�


COMPOSITE INSULATOR - NORMAL SHEDS

REQUIRED

OFFERED

S/P > 0.65 S/P =

C > 25 mm C =

� = 5�-10� � =

Kad = 1 Kad =

Da < 300 mm Da =

RUSCD � 53.7 mm/kV l =

L � 5270 mm L =

L/A < 3.51 L/A =

l/d < 4.5 l/d =

Kad = Correction Factor for insulator diameter of the RUSCD

Da = (Dt+Ds1)/2

RUSCD = Reference unified specific creepage distance phase to ground




B-43

�


PORCELAIN INSULATOR

�

NO. MATERIALS DETAILS

1 BONDING MATERIAL

2 PRIMER

3 FINAL PROTECTIVE PAINT

4 FLANGE MATERIAL

5 OTHER MATERIALS


B-44

�


COMPOSITE INSULATOR

DETAILS FILLED BY MANUFACTURER

MATERIALS ITEMS No.

� �SILICON RUBER HOUSING 1 �

� �FRP� �TUBE 2 �

� �ALUMINIUM FLANGE 3 �

� � INTERFACE 1 (BETWEEN HOUSING AND TUBE)

4 �

� � INTERFACE 2 (BETWEEN HOUSING AND FLANGE)

5 �

� � INTERFACE 3 (BETWEEN TUBE AND FLANGE)

6 �

� �ARC RESISTANCE SURFACE

INNER SURFACE 7 �


B-45

�

Steel supporting structure for mounting of VOLTAGE TRANSFORMERS


B-46

�

REQUIRED OFFERED

10.6 COMMISSIONING / INSTALLATION ALL ITEMS

10.6.1 The Contractor shall be responsible for all equipment covered under his contract ................................................................................................

10.6.2 The installation of Voltage Transformers including steel pedestal shall be performed by Purchaser according to Contractor’s installation instructions .............................................................................................

10.6.3 Estimated number of man-hours required for erection of one VT ...........................

10.6.4 The Contractor shall prepare and submit three months prior to the start of erection and commissioning, a Commissioning Program for approval by Purchaser .............................................................................................

10.6.5 Estimated number of man-hours required for commissioning and testing of one VT: ................................................................................................

10.6.6 The Commissioning Program shall include indications for: ................................

10.6.6.1 Commissioning inspection to detect faults which have occurred during transportation, storing or during assembly at its final location. .........................................................................................

10.6.6.2 Preparation for use and procedures to describe the activities required to prepare systems for testing and operation ...................

10.6.6.3 Checking of rated data, connection, loading, etc. of the new equipment and necessary interface with the existing equipment supplied by others ..........................................................................

10.6.6.4 Checking of indicating meters, relays, control and communications equipment and similar functions associated with the equipment ................................................................................

10.6.6.5 Testing as detailed in tests on site program including the following:

10.6.6.5.1 The test objective ......................................................................

10.6.6.5.2 Test intent ..................................................................................

10.6.6.5.3 Required performance data ......................................................

10.6.6.5.4 Prerequisites .............................................................................

10.6.6.5.5 Sequence of activities ...............................................................

10.6.6.5.6 Acceptance criteria ....................................................................


B-47

�

REQUIRED OFFERED

10.6.6.5.7 Painting and other corrosion protection .....................................

10.6.6.5.8 Putting the equipment into service ............................................

10.6.6.5.9 Final check. ...............................................................................

10.6.6.5.10 The critical limits of each criteria for which the equipment should be drawn out from service ...............................................

10.6.7 Changes and modifications to the Commissioning Program shall also be approved by Purchaser ................................................................

10.6.8 Commissioning results shall be witnessed by the Purchaser and documented on forms to be agreed upon by the Contractor. The record shall include other such as omissions or unsatisfactory test results ......................................................................................................................

10.6.9 The Contractor shall maintain an up-to-date record of all inspections and tests, which shall be handed over to the Purchaser at the completion of the site testing and commissioning ................................

10.6.10 The Contractor shall be responsible for making available to Purchaser a minimum of two (2) complete sets of marked-up “as built” drawing before leaving the site. Contractor shall correct and reissue the original drawings as soon as possible ................................

10.6.11 The Purchaser shall be responsible for the connection and disconnection of the new equipment to and from system, including first energization of new equipment, but with the advice and technical assistance of the Contractor (if required) ................................

10.6.12 The Contractor shall be responsible for supplying commissioning personnel (if required) with a good knowledge in all relevant operations prior and for commissioning and will be requested to submit a list giving name, experience and proposed duration on site .......................

10.6.13 The Contractor shall be responsible for safety of personnel (ours or his own) involved in commissioning and shall take all possible precautions and be fully aware of the dangers involved in testing. Contractor’s personnel should also be insured against death, personal accident and health while in Israel and be covered by Employers Liability insurance applicable in their country of origin .............................

10.6.14 Major failure or damage to equipment will require either its return to the factory or assignment of a special crew to carry out repairs ............................

10.6.15 Minor failure shall be repaired by commissioning personnel .............................

10.6.16 All expense (including transport to factory and return) in connection with damages and repairs as described above shall be paid by Contractor ................................................................................................


B-48

�

REQUIRED OFFERED

10.6.17 Indicate if supervision of installation or commissioning by Contractor is necessary ............................................................................................

10.6.18 Confirm validity of the warranty period also in case that the erection and commissioning will be performed by Purchaser without Contractor’s supervision ...........................................................................................

10.7 OPERATION & MAINTENANCE

10.7.1 GENERAL ALL ITEMS

10.7.1.1 Manufacturer is requested to fill in the enclosed Appendix 8 and/or Appendix 9 “Reliability, Availability, Maintainability (RAM)" based on relevant information from users. Manufacturer shall describe the system of relevant data collection from users ............

10.7.1.2 Necessary maintenance work (please indicate details) .................

10.7.1.3 A complete set of tools for maintenance and repair work shall be provided, together with relevant drawings or photos and full instructions for use. All written information shall be in English .......

10.7.1.4 Number of months under normal service conditions between successive oil replacements ..........................................................

10.7.1.5 Number of months between checking of bellows position and oil leakage (Alternatives A&C) ............................................................

10.7.1.6 Number of months between checking of oil limiting values in accordance with IEC (Alternatives A&C) ........................................ Indicate also if gas analysis is recommended ................................

10.7.1.7 Number of months under normal service conditions between successive SF6 pressure checking (Alternatives B&D) ..................

10.7.1.8 Number of months between successive cleaning, painting and rust proofing of metal parts ............................................................

10.7.1.9 Expected man-hours required for periodical inspection and maintenance (hours) ......................................................................

10.7.1.10 The VT’s shall be designed for live-washing (automatic and manual) taking into account service conditions described under subclause 10 .................................................................................

10.7.1.11 Recommended maintenance works for VT with porcelain insulator (please give details) .........................................................

10.7.1.11.1 Intervals between cleaning (years) .......................................... Indicate also the method of cleaning (manual or automatic) ........


B-49

�

REQUIRED OFFERED

10.7.1.11.2 Number of man-hours for cleaning ...........................................

10.7.1.12 Recommended maintenance works for VT with composite insulator (please give details) .........................................................

10.7.1.12.1 Intervals between cleaning (if applicable) (years) ..................... Indicate also the method of cleaning (manual or automatic) ........

10.7.1.12.2 Number of man-hours for cleaning ...........................................

10.7.1.12.3 Taking into consideration the washing method, indicate the reduction of hydrophobic properties during washing and ability to recover it after washing ...............................................................

10.7.1.12.4 Recommended resistivity of water in order to minimize the reducing withstand voltage during the washing ............................

10.7.1.13 Life duration of the VT’s in normal service conditions .................

10.7.1.13.1 VT's in Alternative A ................................................................

10.7.1.13.2 VT's in Alternative B ................................................................

10.7.1.13.3 VT's in Alternative C ...............................................................

10.7.1.13.4 VT's in Alternative D ...............................................................

10.7.2 SPARE PARTS

10.7.2.1 Manufacturer shall ensure spare parts (if applicable) for a period of life duration of VT’s ....................................................................

10.7.2.2 The Manufacturer shall propose detailed list of spare parts recommended for:

10.7.2.2.1 Commissioning ..........................................................................

10.7.2.2.2 The first two (2) years operation ................................................

10.7.2.2.3 Long term operation (10 years) ..................................................

10.7.2.3 The list of spare parts shall include for each Items:

10.7.2.3.1 Item designation ........................................................................

10.7.2.3.2 Type ..........................................................................................

10.7.2.3.3 Recommended possible manufacturers .....................................


B-50

�

REQUIRED OFFERED

10.7.2.3.4 Catalogue data for separate order .............................................

10.7.2.3.5 Price ..........................................................................................

10.7.2.3.6 If the supply is from stock or by manufacturing after order .........

10.7.2.3.7 Lead time before supply (including transport time to Israel) .......

10.7.2.4 List of special equipment or tools necessary for maintenance works .............................................................................................

10.7.2.5 The contractor should supply the relevant documents as specified in Cl. 9.3 ........................................................................................

10.7.2.6 Manufacturer shall ensure training courses for IECo erection and operating people (if necessary). ....................................................


B-51

�

11. TESTS & INSPECTIONS

MANUFACTURER’S OFFERED DATA AND PARAMETERS SHOULD BE FILLED IN AGAINST PURCHASER’S REQUIRED VALUES - AS WELL AS IN THE ABSENCE THEREOF UNDER ALL RELEVANT PARAGRAPHS IN THE FREE COLUMNS OF THE RIGHT HAND SIDE.�


�

REQUIRED OFFERED

11.1 TESTS – GENERAL ALL ITEMS

11.1.1 Contractor shall perform Production Tests to check the quality and uniformity of the workmanship and materials used in the manufacture of the Inductive Voltage Transformer ................................................................

11.1.2 Tests shall be carried out according to requirements further specified and one (1) CD of the relevant test reports for the proposed type of equipment shall be submitted to Purchaser with the proposal ................................

11.1.3 Eight (8) weeks prior to the execution of the routine tests the Contractor shall notify the Purchaser of its commencement. The exact date of performing the tests shall be indicated three (3) weeks before its start.

11.1.4 Contractor shall also submit, test data to prove that the design has the capability to meet all the ratings as specified in this Annexure as well as relevant test reports ................................................................................................

11.1.5 The Manufacturer is required to submit with the tender type test reports of offered type of VT performed by a neutral laboratory accredited to the last applicable accreditation requirements of ISO/IEC 17025/2005 by an Accreditation body which is a member of ILACMRA (eg. APLAC, EA, IAAC, A2LA). Furthermore the Laboratory scope of accreditation must include the required specific test methods used for the mentioned type tests. ................................................................

11.1.6 Contractor shall submit a list of all tests to be performed on site, after mounting of the Voltage Transformer and during operation ................................................................


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REQUIRED OFFERED

11.1.7 Contractor shall submit with the test reports a list of all measuring instruments, including their accuracy class and type, test equipment and test circuits ................................

IEC 61869-1 and

IEC 61869-3

11.1.8 Contractor shall indicate permissible tolerance for each test value ................................................................

11.2 TYPE TESTS A&C B&D13

11.2.1 Type Test Reports for offered types according to the provision of the latest relevant issue of IEC recommendations, shall be supplied with the proposal 14 (fill in also Appendix 2, Appendix 3 and/or Appendix 4) acc. to: ................................................................................................

IEC 61869-1 Cl.7.2

IEC 61869-3 Cl.7.2

Table 10

11.2.2 The Purchaser can require from Contractor to perform again type tests, which are not performed according to the requirements in this specification without extra price and in presence of IECo representatives ................................

11.2.3 Temperature-rise test according to: ................................The temperature rise values will be less than the values specified under cl. 10.4.2.1 ................................................................

IEC 61869-3 Cl.7.2.2

11.2.4 Lightning impulse voltage test on primary terminals according to: ................................................................................................

Phase to ground test voltage(kV peak) ................................

IEC 61869-3 Cl.7.2.3.1

IEC 61869-1 Cl.7.2.3.2.2 and Table 2

750

11.2.5 Wet test for outdoor transformers acc. To ................................

One minute power frequency test on primary winding phase to ground (kV r.m.s.) ................................................................

IEC 61869-1 Cl.7.2.4

325

11.2.6 Radio interference voltage test (R.I.V.)................................IEC 61289-1

Cl.7.2.5.1

11.2.6.1.1 Radio Interference level at 108 kV (1.1xUm/�3)

shall not exceed (�V) 15 ...............................................................

2500

13�For gas type VT indicate the gas pressure test for each test.

14 Please indicate number of Test Report.

15 Um = highest system voltage�


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REQUIRED OFFERED

11.2.7 Test for accuracy according to: ................................................................IEC 61869-3 Cl.7.2.6

11.2.7.1 Type test for limits of voltage error and phase displacement for measuring winding shall be performed acc. to: ................................................................

IEC 61869-3 Cl.7.2.6.301

11.2.7.2 Type test for limits of voltage error and phase displacement for protective winding shall be performed acc. to: ................................................................

IEC 61869-3 Cl.7.2.6.302

11.2.8 Verification of the degree of protection of secondary terminal box: ................................................................................................

IEC 61869-1 Cl.7.2.7

11.2.8.1 Verification of the IP coding (IP 54) ................................Cl.7.2.7.1

11.2.8.2 Mechanical impact test (IK 10) ....................................................Cl.7.2.7.2

11.2.9 Enclosures tightness test at ambient temperature (applicable for SF6 gas insulated VT’s, Alt. B&D) ................................

IEC 61869-1 Cl.7.2.8.1

NA

11.2.10 Short-circuit withstand capability test acc. to: ................................IEC 61869-3 Cl.7.2.301

11.2.11 Type tests of porcelain insulators (Alternative A&B) acc. to: ................................................................................................and Appendix 3 ................................................................

IEC 62155

11.2.12 Type tests of composite insulators (Alternative C&D) acc. to: ................................................................................................and Appendix 4 ................................................................

IEC 61462

11.3 ROUTINE TESTS: A&C B&D

11.3.1 Manufacturer shall perform all Routine Tests for each Inductive Voltage Transformer according to the provisions of IEC Recommendations and submit all relevant test reports acc. to: .. ................................................................

IEC 61869-1 Cl.7.3

Table 10

IEC 61869-3 Cl.7.3

�

11.3.2 Manufacturer shall submit in one (1) CD the routine test reports to Purchaser for approval one month prior to delivery. The equipment can be delivered only after approval of routine test reports ................................................................

�

11.3.3 Manufacturer shall indicate in Routine Test Report the permissible tolerance for each test value and test


B-54

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REQUIRED OFFERED

conditions ................................................................................................

11.3.4 Routine test reports shall include: �

11.3.4.1 Power frequency voltage withstand tests on primary terminals for 1 min according to:....................................................

Phase to ground (kV r.m.s) ................................................................

IEC 61869-3 Cl.7.3.1

325

11.3.4.1.1 Induced voltage withstand test acc. to: ................................IEC 61869-3 Cl.7.3.1.303

11.3.4.1.1.1 Test voltage (kV r.m.s.) .........................................................��

11.3.4.1.1.2 Frequency (Hz) ................................................................

11.3.4.1.1.3 Duration (sec) ................................................................

11.3.4.1.2 Separate source withstand voltage test acc. to: .........................IEC 61869-3 Cl.7.3.1.302

11.3.4.2 Partial discharge measurement test according to: ........................IEC 61869-1 & 61869-3

Cl.7.3.2

11.3.4.2.1 Pre-stress voltage/duration Indicate procedure A or B acc. to: ....................................................................................

IEC 61869-3 Cl.7.3.2.2

11.3.4.2.2 Measuring of PD level at specified voltage test :

11.3.4.2.3 Partial discharge level at Um (pC)........... <10

11.3.4.2.4 Partial discharge level at 1.2 x Um/�3 (pC)..... < 5

11.3.4.3 Power frequency voltage withstand tests between sections according to: ................................................................

IEC 61869-1 Cl.7.3.3

11.3.4.3.1 One minute power frequency test between sections (kV r.m.s.) ................................................................

3

11.3.4.3.2 One minute power frequency test between capacitive tap and earth (kV r.m.s.) ................................

11.3.4.4 Power frequency voltage withstand tests on secondary terminals:

IEC 61869-1 Cl.7.3.4

11.3.4.4.1 One-minute power frequency test between secondary terminals of each winding and earth (kV r.m.s.) ..................................................................................

3


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REQUIRED OFFERED

11.3.4.5 Tests for accuracy ................................................................IEC 61869-3 Cl.7.3.5

11.3.4.5.1 Routine test for accuracy for measuring windings of Voltage Transformers, according to: ................................

IEC 61869-3 Cl.7.3.5.301

11.3.4.5.2 Routine test for accuracy for protective windings of Voltage Transformers shall be performed ...............................

IEC 61869-3 Cl.7.3.5.302

11.3.4.6 Verification of terminal markings according to: .............................IEC61869-1 Cl.7.3.6

11.3.4.7 Oil-leakage test (applicable for oil insulated VT’s Alternatives A&C) ................................................................

IEC 61869-1 cl.7.3.7

NA

11.3.4.8 Enclosure tightness test at ambient temperature (applicable for SF6 gas insulated VT’s Alternatives B&D) acc. to: ................................................................

IEC 61869-1 cl.7.3.7

NA

11.3.4.9 Measurement of primary and secondary winding resistance acc. to: ................................................................

IEEE C57.13/2008

Cl.8.5 �

11.3.4.10 Measurement of capacitance and dielectric

dissipation factor (tan �) test shall be performed for each Voltage Transformer, according to Manufacturer’s Standard methods (a full description of the test method shall be supplied) and according to: ................................................................................................

IEC 61869-3 Cl.7.4.3

�

11.3.4.10.1 Capacitance between primary conductor and capacitance tap (pF) ................................................................

11.3.4.10.2 Capacitance between capacitance tap and earth (pF) .............................................................................................

11.3.4.10.3 Voltage on capacitance tap at Un/�3 primary voltage (V) ..................................................................................

11.3.4.10.4 The measurement of dielectric dissipation factor

(tan �) shall be performed at a voltage in the range

from 10kV to Um/�3 ................................................................

11.3.4.11 Measurement of insulation resistance (Indicate also the DC test voltage value for each of the following measurements) ................................................................

11.3.4.11.1 Between the primary winding and capacitance tap

(�) ..............................................................................................


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REQUIRED OFFERED

11.3.4.11.2 Between the capacitance tap and earth (�) .............................

11.3.4.11.3 Between the secondary windings (�) ................................

11.3.4.11.4 Between the secondary windings and earth (�) ......................

11.3.4.12 Test certificate of oil acc. to ........................................................Appendix

5�

NA

11.3.4.13 Test certificate of SF6 gas ..........................................................IEC 60376 � NA

11.3.4.14 Routine and sample tests for each porcelain insulator Alt. A according to: .......................................................

IEC 62155 Alt A

11.3.4.14.1 Sample tests: ................................................................Cl.9.1

11.3.4.14.1.1 Verification of dimensions .....................................................Cl.7.1

11.3.4.14.1.2 Control of the roughness of the ground parts ........................Cl.7.1

11.3.4.14.1.3 Temperature cycle test: ........................................................Cl.7.3

11.3.4.14.1.4 Porosity test: ................................................................Cl.7.4

11.3.4.14.1.5 Galvanizing test: ................................................................Cl.7.5

11.3.4.14.1.6 Pressure test ................................................................Cl.8.2.1

11.3.4.14.1.7 Bending test: ................................................................Cl.8.3.1

11.3.4.14.2 Routine tests: ................................................................Cl.10.1

11.3.4.14.2.1 Visual examination: ..............................................................Cl.10.3

11.3.4.14.2.2 Electrical test: ................................................................Cl.10.4

11.3.4.14.2.3 Routine pressure test: ..........................................................Cl.10.5.1

11.3.4.14.2.4 Bending test: ................................................................Cl.10.5.2

11.3.4.14.2.5 Other mechanical tests Alt. A: ................................Cl.10.5.3

11.3.4.15 Routine and sample tests for each porcelain insulator Alt. B according to: .......................................................

IEC 62155 Alt B

11.3.4.15.1 Sample tests: ................................................................Cl.9.2


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REQUIRED OFFERED

11.3.4.15.1.1 Verification of dimensions .....................................................Cl.7.1

11.3.4.15.1.2 Control of the roughness of the ground parts ........................Cl.7.1

11.3.4.15.1.3 Temperature cycle test: ........................................................Cl.7.3

11.3.4.15.1.4 Porosity test: ................................................................Cl.7.4

11.3.4.15.1.5 Galvanizing test: ................................................................Cl.7.5

11.3.4.15.1.6 Pressure test ................................................................Cl.8.2.2

11.3.4.15.1.7 Bending test: ................................................................Cl.8.3.2

11.3.4.15.2 Routine tests: ................................................................Cl.10.2

11.3.4.15.2.1 Visual examination: ..............................................................Cl.10. 3

11.3.4.15.2.2 Electrical test: ................................................................Cl.10. 4

11.3.4.15.2.3 Routine pressure test: ..........................................................Cl.10.6.1

11.3.4.15.2.4 Bending test: ................................................................Cl.10.6.2

11.3.4.15.2.5 Other mechanical tests Alt. B: ................................Cl.10.6.3

11.3.4.16 Routine and sample tests for each composite insulator Alt. C&D according to: ...................................................

IEC 61462

Alt C&D

11.3.4.16.1 Sample tests: Cl.9

11.3.4.16.1.1 Verification of dimensions: ....................................................Cl.9.3

11.3.4.16.1.2 Mechanical tests ................................................................Cl.9.4

11.3.4.16.1.3 Galvanizing test ................................................................Cl.9.5

11.3.4.16.1.4 Check of the interface between end fittings and housing .....................................................................................

Cl.9.6

11.3.4.16.2 Routine tests: Cl.10

11.3.4.16.2.1 Visual examination ...............................................................Cl.10.2

11.3.4.16.2.2 Routine pressure tests ..........................................................Cl.10.3


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REQUIRED OFFERED

11.3.4.16.2.3 Routine mechanical tests .....................................................Cl.10.4

11.3.4.16.2.4 Routine tightness tests .........................................................Cl.10.5

11.4 SPECIAL TESTS

In addition to the tests mentioned above, Manufacturer shall perform the following tests on one Voltage Transformer, except where indicated otherwise, and supply test reports and curves accordingly: ................................................................

IEC 61869-1 & 61869-3

Cl.7.4

A&C B&D

11.4.1 Chopped lightning impulse test on primary windings, according to: ................................................................................................

IEC 61869-1 Cl.7.4.1

11.4.1.1 One 100% full impulse (kV peak) ................................

11.4.1.2 Two 100% chopped impulses (kV peak)................................

11.4.1.3 Fourteen 100% full impulses (kV peak) ................................

11.4.1.4 Differences in impulse shape of full wave before or after chopped impulses (yes or no) ................................

11.4.2 Multiple chopped impulse test on primary terminals acc. to: ................................................................................................

IEC 61869-1

Cl.7.4.2

11.4.3 Transmitted overvoltage test acc. to: ................................

Transmitted overvoltage (kV peak) ................................................................

IEC 61869-1

Cl.7.4.4 �

< 1.6

11.4.4 Mechanical tests are carried out to demonstrate that the VT is capable to withstand the required values under subcl. 10.5.9 ................................................................

IEC 61869-1 Cl.7.4.5

11.4.5 Internal arc fault test acc. to: ................................................................IEC 61869-1 & 61869-3

Cl.7.4.6

11.4.5.1 Internal arc fault current (kA r.m.s.) ................................ 50

11.4.5.2 Arc fault duration in protection class I (sec) ................................0.5

11.4.5.3 Operating time for the rupture disc (msec) - Alternative B&D ................................................................

11.4.6 Tightness tests at low and high temperatures (for VT's alternatives B&D) acc. to: ................................................................

IEC 61869-1 Cl.7.4.7

NA


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REQUIRED OFFERED

11.4.7 Gas dew point test (for VT's alternatives B&D) acc. to: ................................IEC 61869-1 Cl.7.4.8

NA

11.4.8 Corrosion test acc. to: ................................................................IEC 61869-1 Cl.7.4.9

11.4.9 Fire hazard test acc. to: ................................................................IEC 61869-1 Cl.7.4.10

11.4.10 Impedance and excitation measurements acc. to: ................................IEEE C57.13/2008

Cl.8.3

11.4.10.1 Measurement of short circuit impedance acc. to: ........................Cl.8.3.1.3

11.4.10.2 Measurement of exiting current and voltage and drawing of the magnetization curve at 50Hz acc. to: .....................

Cl.8.3.2

11.4.11 Seismic qualification test acc. to IEEE Std 693-2005 shall prove that the voltage transformer including all accessories will operate fully satisfactory during and after earthquake with ground acceleration indicated in clause 10.1.5 ................................................................................................

IEEE 693

Moderate level

11.4.11.1 Qualification by test ................................................................

11.4.11.2 Qualification by combined test and dynamic analysis……………………………………………….. The calculation will take into consideration also the support structure of VT with height of min. 2.5m and weight of 460kg ................................................................

11.4.11.3 Contractor is required to submit a test report to prove the qualification level and a dynamic analysis report for each alternative .............................................................

11.4.11.4 The dynamic seismic analysis report shall be done for voltage transformer including support structure acc. to: .........................................................................................

and taking into consideration: ........................................................

IEEE 693 cl.A1.3.3 &

A6

Annex. R

11.4.11.4.1 Damping ratio of voltage transformer (%) ................................

11.4.11.4.2 Natural frequency of voltage transformer in x, y, z


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REQUIRED OFFERED

directions (Hz) ................................................................

11.4.11.4.3 Resonant frequency of voltage transformer in x, y, z directions (Hz) ................................................................

11.4.12 Recommended tests on site to establish the correct operation:

11.4.12.1 Alternatives A&C ................................................................

11.4.12.2 Alternatives B&D ................................................................


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12. PACKING & DELIVERY



REQUIRED OFFERED

12.1 The equipment shall be delivered free of expense to the Purchaser on board overseas vessel ...........................................................................................

12.2 The equipment package for shipment shall be so designed and carried out as to prevent any damage to equipment during shipment ........................

12.3 Port of shipment shall be an ice-free Atlantic or Baltic or Mediterranean port as later designated by Purchaser. ................................

12.4 Manufacturer is required to use seaworthy packing ................................

12.5 Precautionary and handling marking on crates shall be made with appropriate international symbols according to DIN 55402 ................................

12.6 A three directions shock indicators calibrated for 10g acceleration (non-resettable type) shall be provided in each crate ................................

12.7 Indicate in which position (horizontal or vertical) the VT will be transported and shipped. Corresponding notes shall be provided on the packing ................................................................................................

12.8 Manufacturer's requirements for Transport on roads and on site ............................

12.9 Manufacturer should supply drawings and description of packing ..........................

12.10 Number of VT’s packed in each crate for transportation ................................1 �

12.11 Each shipment container shall contain a packing list and, in addition, shall be marked with the following information: ................................

12.11.1 Descriptive name/s of the equipment or supplies contained ................................

12.11.2 Quantity packed in container ................................................................

12.11.3 Serial numbers, if any, of the equipment contained ................................

12.11.4 Contract number ................................................................................................


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REQUIRED OFFERED

12.11.5 Contractor’s name and address (city, state, country) ................................

12.11.6 Gross weight of container ................................................................

12.11.7 Cubic volume of container ................................................................

12.11.8 Complete destination marking ................................................................

12.12 Dimensions of each type of packing crate supplied by Manufacturer: ................................................................................................

12.12.1 L x W x H (m/m/m) .............................................................................................

12.12.2 Weight (t/pcs) ................................................................................................

12.13 Total shipping weight for VT's quantity in base contract :

12.13.1 ITEM 1:

12.13.1.1 Alternative A (t)...........................................................................

12.13.1.2 Alternative B (t)...........................................................................

12.13.1.3 Alternative C (t) ..........................................................................

12.13.1.4 Alternative D (t) ..........................................................................

12.13.2 ITEM 2:

12.13.2.1 Alternative A (t)...........................................................................

12.13.2.2 Alternative B (t)...........................................................................

12.13.2.3 Alternative C (t) ..........................................................................

12.13.2.4 Alternative D (t) ..........................................................................

12.14 Total shipping volume for VT's quantity in base contract: ................................

12.14.1 ITEM 1:

12.14.1.1 Alternative A (m�) .......................................................................

12.14.1.2 Alternative B (m�) .......................................................................

12.14.1.3 Alternative C (m�) .......................................................................

12.14.1.4 Alternative D (m�) .......................................................................


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REQUIRED OFFERED

12.14.2 ITEM 2:

12.14.2.1 Alternative A (m�) .......................................................................

12.14.2.2 Alternative B (m�) .......................................................................

12.14.2.3 Alternative C (m�) .......................................................................

12.14.2.4 Alternative D (m�) .......................................................................


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13. STORAGE & HANDLING



REQUIRED OFFERED

13.1 The equipment package for shipment shall be so designed and carried out as to prevent any damage to equipment during transportation and prolonged (2-3 years) storage under the climatic and environmental conditions described under sub clause 10 ................................

13.2 Manufacturer should supply drawings and description of handling and storage ................................................................................................

13.3 Manufacturer's requirements for Prolonged storage (2-3 years) before erection, taking into account the specific conditions under sub clause 10 ................................................................................................


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14. NAME PLATE



REQUIRED OFFERED

14.1 All voltage transformers shall carry the markings specified in:

IEC 61869-1 Cl.6.13

14.1.1 The nameplates shall be written in English, with metric units, with all symbols and characters engraved by laser in accordance with the latest IEC Recommendations ................................

14.1.2 The nameplates material shall be no corrosive stainless steel and they shall be mounted with no corrosive type stainless steel screws, bolts or rivets. Mounting of the nameplates with adhesive is not acceptable ................................

14.2 In addition the following data shall be included:

14.2.1 A diagram showing the use of each secondary winding and its corresponding terminal markings ................................

14.2.2 Mechanical requirements (static/ static + dynamic loads) (N/N)................................................................................................

2400/5500

14.2.3 Temperature category ................................................................-5/+50 ºC

14.2.4 Creepage distance ................................................................

14.2.5 Name and number of standard (publication) ................................

14.2.6 Rated voltage factor and the corresponding rated time ................................

14.2.7 Seismic qualification level ................................................................0.5g

14.2.8 Value of tan � ................................................................................................


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15. NOTES

15.1 TERMS AND CONDITIONS FOR 170 KV VOLTAGE TRANSFORMERS PURCHASING

15.1.1. The list of subcontractors shall be approved by Purchaser.

15.1.2. The missing type tests will be performed in a neutral laboratory approved by Purchaser, according to Specification SR - 146 in presence of Purchaser's representatives.

15.1.3. The voltage transformers shall be supplied only after approval of all type and routine test reports.

15.1.4. The equipment which was type tested cannot be supplied to Purchaser.

15.1.5. Delivery date is limited to 300 days after placing of the order.

15.1.6. The option shall be valid 5 (five) years from signature of the Contract.

15.1.7. The delivery of Option shall be limited to 12 months after placing the order for the Option.

15.1.8. The Contractor shall include in Annexure "C" the prices for the basic scope and option.

15.2 EVALUATION OF CONTRACTOR’S TECHNICAL PROPOSAL

15.2.1. Contractor’s offered data and parameters contained in its offer, as well as definite answers or comments will be evaluated from technical point of view using an expert computer program for decision making.

15.2.2. The decision making process consist of identifying all relevant criteria and attaching to each criterion an appropriate weight for technical evaluation.

15.2.3. All proposals (alternatives) made by different contractors will be evaluated taking into account the same relevant criteria.

15.2.4. The computer program uses a pair wise comparison technique based on statistical analysis to evaluate criteria importance and to rank alternatives (proposals).

15.2.5. The main criteria used for the technical evaluation are according to the main paragraphs in this Specification as follows: Electrical Data, Design and Construction, Tests Requirements, RAM & Maintenance Requirements, Operating Experience (in the world and in Israel), Technical support from Contractor. All subclauses for which different contractors offer different technical data will form the sub-criteria of the relevant main criteria.

15.2.6. All subclauses in this Specification indicated by the symbol � are compulsory requirements. The Bidder's proposal will be almost certainly disqualified, should the proposal clauses do not comply with one of the compulsory requirements. The compliance with compulsory requirements will be enough, but not limited to, for the offer qualification. Bidder's proposal will be disqualified, if its proposal does not meet with the major requirements according to "good engineering" usage for the relevant technology.


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15.3 COMMENTS BY MANUFACTURER ON ANNEXURE “B” AND SUMMARY OF DATA


NOTES

B-68

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15.4 DEVIATIONS FROM REQUIREMENTS

Manufacturer is requested to describe or indicate deviations of the equipment and accessories from all requirements in this Specification.

In case no deviations are mentioned it will be understood that Manufacturer’s offer entirely complies with all requirements in this Specification.


B-69�

15.5 CONFORMITY WITH PROPOSAL DOCUMENTS

Contractor hereby certifies that he agrees to all provisions of the Proposal Documents unless exceptions are specifically and clearly listed in the proposal and identified as Exceptions.

Contractor’s printed terms and conditions are not considered specific exceptions. Any exceptions, which Contractor has taken, are listed on "Deviations from requirements" in the previous page.

Contractor hereby certifies that he agrees to all conditions of the cover letter of the Israel Electric Corporation Limited, which accompanied the Proposal Documents.

___________________________________

Date of Proposal��

Signature of Bidder

___________________________________

Print name and title of signing officer

��

�

�

�

APPENDIX No. 1 SPECIFICATION SR - 140

A1-1

�

APPENDICES:

THE ISRAEL ELECTRIC CORPORATION LTD.

ORGANIZATION, QUALITY AND SAFETY DIVISION

QUALITY CONTROL UNIT

Q - APP - 02

4

03/ 2011

PAGE 1 FROM 7

Spec. No.

Rev.

Status

Volume

APPENDICES FOR CONTRACTS / ORDERS TITLE

QUALITY REQUIREMENTS

SUB

TITLE

Appendix 1

Quality Requirements:

1. GENERAL

1.1 In addition to the provisions of the General Conditions – Annexure "A" and without

derogating from the generality there, the Quality Requirements as specified in this

document constitute an integral part of the Contract between the Purchaser and the

Contractor. Implementing these requirements shall not constitute any base/reason, for the

Contractor to change the Contract schedule and/or price.

1.2 The Contractor shall make all the necessary arrangements and prepare all the required

and necessary means to enable IEC's Quality Control Unit Representative (see clause 2)

to review, observe, audit, inspect, test and survey the Work - at any facilities where Work

or any part thereof is performed, including those of Contractor and Sub- Contractors,

without any additional cost to the Purchaser or any change in the Contract schedule.

1.3 The Contractor shall nominate, as part of the execution of the Contract a quality

engineer or a quality specialist to control and manage the quality requirements of the

Contract. This person shall have the authority and responsibility with respect to all

quality requirements of the Contract (including notifying the Purchaser about

inspections, tests, etc.) and shall serve as Purchaser's liaison for quality matters.

1.4 The Contractor shall be responsible that all of the Contract’s quality requirements are

known, accepted and performed by its Sub- Contractors. Special attention should be

given to Contractor's procurement control and its Sub- Contractor's design control,

process and manufacturing control, purchasing control, nonconforming material/events

control and inspection notification. Upon Purchaser's request Contractor shall submit un-

priced copies of purchase orders pertaining to the Work/Contact.

PREPARED BY CHECKED BY APPROVED BY

B. Ben-Akiva

Q.C. UNIT

QUALITY ENGINEERING

Y. Shubinsky

Q.C. Dept. - North

MANAGER

R. Bandel

Q.C. UNIT

MANAGER

DATE AND SIGNATURE ��

06/03/2011 �

�


06/03/2011


06/03/2011


A1-2�




Q - APP - 02

4

03/ 2011

PAGE 2 FROM 7

Spec. No.

Rev.

Status

Volume



SUB

TITLE

2. DEFINITIONS, CLASSIFICATIONS AND ABBREVIATIONS.

2.1. CORRECTIVE ACTION (CA) – As defined in ISO 9000:2005.

2.2. QUALITY PLAN (QP) - Plan, prepared by the Contractor especially for the

Contract, in accordance with ISO 10005 which covers all Contract stages.

2.3. INSPECTION AND TEST PLAN (ITP) �� a plan,�specifying all the inspections and

tests for the Work throughout all Contract stages (from its initialing through design, in

process inspection, type tests, product qualification, first article inspection, final

inspection/s and test/s, packing, transportation and supply to the Purchaser, erection -

including Site Acceptance Test and commissioning). ITP shall also specify Witness and

Hold Points.

2.4. WITNESS POINT (WP) - a planned visit of the QCUR for purposes indicated in

clause 1.2 for specific point of the ITP or Quality Plan.

2.5. HOLD POINT (HP) – the same as WP but with the distinction that the Contractor is

not permitted to proceed with its planned activities without having received Purchaser’s

written approval.

2.6. NON CONFORMANCE (NC) - deviation from any specified Contract

requirement/s and/or from any quality characteristic of the Work.

2.7. NON CONFORMANCE REPORT (NCR) - a report, on Contractor’s numbered

serial form, describing the details of a Non conformance, from its detection through

disposition and corrective action(s).

2.8. QUALITY CHARACTERISTIC �� Any identifiable property of the Work (i.e.

physical��chemical, functional, visual, technical, environmental, economical, statistical,

legal etc.)

2.9. WORK - Scope of the Contract and the means to execute it�

2.10. QCUR - the Purchaser's Quality Control Unit Representative and/or any authorized

representative of it�

2.11. SPECIAL PROCESS - Irreversible manufacturing processes or processes which

require special or specific tools.


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SUB

TITLE

3. QUALITY PLAN AND INSPECTION AND TEST PLAN

3.1 The Contractor shall prepare QP and ITP for all stages of the Contract. These plans shall

be submitted to the Purchaser for approval within fourteen (14) days of initialing of the

Contract by the parties. Contractor shall not amend, change or alter any part of the QP

and/or ITP without the prior written approval of the Purchaser.

Note: ITP shall conform to Exhibit 'A' attached hereto or any other form approved by the

Purchaser.

3.2 Contractor shall not commence work prior to receiving Purchaser’s written approval to

the QP and ITP.

4. DOCUMENTATION

4.1 The Contractor shall submit to the Purchaser for review, along with the QP and ITP, its

quality and manufacturing/operations procedures that pertain to the Work execution. The

Purchaser has the right to receive explanations with respect thereto. Contractor shall

provide Purchaser with all amendments and/or updates of documentation.

4.2 Special documents such as process procedures and inspection/test procedures written

specifically for the Contract shall be submitted to the Purchaser, for review, comment and

approval in accordance with Contract until the date agreed in there, but not less than

twenty-one (21) days prior to its use.

4.3 The Contractor shall submit to the Purchaser, for review, comment and approval (as

required by the Contract) all the process qualifications and the employees certifications

for special processes which pertain to the Work and are relevant to the Contract execution.

4.4 Supplying Work which is not manufactured by the Contractor (under Contract terms) and

which he has no control over the manufacturing process, shall not derogate from

Contractors responsibility to supply the Purchaser with the documentation and quality

records as indicated in Articles 4 and 7.


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Volume



SUB

TITLE

5. INSPECTIONS AND TESTS

5.1 The Contractor shall have available all test and inspection equipment and/or any other

means, required in Purchaser’s opinion, for the execution of Work and ITP.

5.2 If Contractor uses the services of a Sub - Contractor to carry out any test/inspection

required by the Work, only inspection companies certified to EN 45004 (level A or C) are

acceptable.

5.2.1 Type test, Routine Test and Sample test shall be carried out according to Contract

requirements.

5.3 Any other qualification test (for mechanical equipment) shall be carried out in the presence

of the QCUR, followed by all quality records. The serial manufacturing shall commence

only after 1st Article/piece test have successfully carried out witnessed by the Purchaser's

QCUR.

6. INSPECTION NOTIFICATION

6.1. The Contractor shall indicate each inspection/test and notify the Purchaser of it in

advance. An ITP schedule (on a GANT form) shall be prepared by the Contractor,

within six (6) weeks after initialing of the Contract.

Indications of inspection/test dates may in any event not be less than six (6) weeks in

advance. Both inspection/test notification and ITP schedule shall be reported to the

Purchaser's Project Management. In addition to the above ITP schedule, Contractor shall

submit to Purchaser a final notice of planned tests/inspections not less than twenty-two

(22) Israeli working days in advance.

6.2. Should Contractor fails to notify the Purchaser of a planned inspection/test, as

required, or in the event Contractor carries out a test/inspection without the required

presence of the QCUR, Purchaser shall have the option of demanding that Contractor re-

perform the test/inspection in the presence of QCUR at a time convenient to Purchaser

and at no additional cost..


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SUB

TITLE

7. QUALITY RECORDS

7.1. The Quality Records stipulated in this clause shall be, either in Hebrew, in

dual/multi-language form with English, in English only, or if not available translated to

English by Contractor.

7.2. Contractor shall submit to the Purchaser copy of the quality records documenting the

inspections, tests or other quality operations of the Work, as indicated in the ITP, QP and

the Contract. All quality records of skipped or missed WP and/or HP shall be submitted

to Purchaser immediately after their generation.

7.3. All Test and Inspection Certificates/ Reports of materials, operations and or

inspection/test, purchased or carried out for the Work and/or required by the applicable

Standards, shall be submitted to the Purchaser immediately following their generation.

These Certificates/Reports shall be original, in accordance with EN 10204:2004-3.1,

containing actual measured values, signed and attested by Contractor. For any other

document type, Contractor has to get Purchaser permission in advance.

7.4. Contractor shall make available to Purchaser upon its request, for review and

comment, at Purchaser’s premises or other mutually agreed place (in Israel), the quality

records of any - Type test, Routine test, Qualification test, First Article Inspection/Test,

Process qualification, Special process and/or any other inspection/test/examination

required by Purchaser, after initialing of the Contract, to evaluate the Work (at all stages)

regardless of the QP and the ITP.

7.5. Submission of the documents and quality records, regarding the Equipment to which

the documents relate, to Purchaser, as specified in Articles 4 and 7, shall be a condition,

precedent to shipment by Contractor and payment by Purchaser.

7.6. Quality records of inspections/tests and/or of process control and process evaluation

pertaining to a Work such as shelf item, standard Equipment and/ or already completed

Equipment to be supplied to Purchaser between 30 to 120 days after execution of the

Contract, shall be immediately submitted to the Purchaser or at least 60 days prior to

packing for shipment, respectively.


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TITLE

8. HANDLING OF NONCONFORMANCES AND CORRECTIVE

ACTIONS

8.1. It is Purchaser's policy to reject Work and/or Goods that do not conform to all

contractual requirements, unless acceptance is in the best interests of Purchaser.

Acceptance of nonconforming Work or Goods is the sole prerogative of Purchaser.

8.2. It is the Contractor’s obligation to report to Purchaser about any nonconforming

item/event which pertain to the Work and are relevant to Contract execution.

8.3. If the Contractor fails to report about a non conformance on time, Purchaser may

request Contractor to dismantle the nonconforming Work (to witness the NC) with no

additional cost. The documentation and quality records concerning this NC shall be

immediately submitted to the Purchaser.

8.4. Each NC should be followed by corrective action/s (CA). A NC which is not

followed by CA shall be rejected.

8.5. Deviating from 8.4 can cause stoppage of the Work and its rejection till the proper

CA is taken by the Contractor.


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SUB

TITLE

EXHIBIT A

I&T Plan FORM

CONTRACTOR'S: NAME, I&T PLAN TITLE, THE PRODUCT INSPECTED/TESTED, and DOCUMENT IDENTITY &

APPROVAL.

PURCHASER'S: NAME AND PROJECT''S NAME AND LOCATION.

No.

THE INSPECTION

OR TEST

APPLICABLE

DCUMENTS

WP/HP OR

OTHER

INSPECTED / TESTED BY

THE REPORT /

CERTIFICATE AND

ITS REF. STD/ PROCEDURE

REMARKS SUB-

CONT./ SUPP

CONTR- ACTOR

PURCH-

ASER

OTHER

APPROVAL BY THE CONTRACTOR'S QUALITY ASSURANCE/CONTROL

NOMENCLATURE:

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-1

�

Ap

pen

dix

2

Typ

e a

nd

sp

ecia

l te

sts

of

vo

ltag

e t

ran

sfo

rmers

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

1

T

yp

e t

es

ts:

7.2

1.1

Tem

pera

ture

ris

e t

est

acc. to

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

IEC

61869-3

C

l.7.2

.2

1.1

.1

altern

ative

A&

C

(VT

im

mers

ed

in

oil

and

herm

etically

seale

d):

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

1.1

.1.1

O

il te

mpera

ture

ris

e a

t to

p o

f ta

nk o

r housin

g (

0K

) ..

....

....

....

....

....

....

....

..

45

1.1

.1.2

W

indin

gs t

em

pera

ture

ris

e u

nder

rate

d c

onditio

ns

(0K

) ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

55

1.1

.1.3

T

em

pera

ture

ris

e o

f w

indin

gs a

t a v

oltag

e f

acto

r 1.5

for

"30 s

ec",

sta

rtin

g a

fter

the a

pplic

ation o

f

1.2

tim

es r

ate

d v

oltag

e less t

han (�K

) ..

....

....

....

....

....

....

....

..

65

16 A

dd

itio

nal

sta

nd

ard

s I

EC

61

86

9-3

, 6

05

07

, IE

EE

C5

7.1

3,

IEE

E 6

93

,I

EC

60

81

5-1

, IE

C 6

08

15

-2,

IEC

60

815

-3

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-2

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

1.1

.2

Altern

atives B

&D

(V

T w

ith S

F6 g

as insula

tion)

1.1

.1.2

W

indin

gs t

em

pera

ture

ris

e u

nder

rate

d c

onditio

ns

(0K

) ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

65

1.1

.1.3

T

em

pera

ture

ris

e o

f w

indin

gs a

t a v

oltag

e f

acto

r 1.5

for

"30 s

ec",

sta

rtin

g a

fter

the a

pplic

ation o

f

1.2

tim

es r

ate

d v

oltag

e less t

han (�K

) ..

....

....

....

....

....

....

....

..

75

1.2

Impuls

e w

ithsta

nd t

est on p

rim

ary

term

inals

: 7.2

.3

1.2

.1

Lig

htn

ing

im

puls

e w

ithsta

nd v

oltag

e test

on

prim

ary

term

inals

(phase t

o g

round)

(kV

peak) .

....

....

....

....

....

....

....

...

7.2

.3.2

.2

750

1.2

.1.1

A

ltern

ative A

&C

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

1.2

.1.2

A

ltern

ative B

&D

: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

1.2

.2

Wet te

st fo

r outd

oor

transfo

rmers

acc. to

....

....

....

....

....

....

....

....

7.2

.4

325

1.2

.2.1

A

ltern

ative A

&C

: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

1.2

.2.2

A

ltern

ative B

&D

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

1.3

Ele

ctr

om

ag

netic c

om

patibili

ty (

EM

C)

tests

: ...

....

....

....

....

....

....

....

.7.2

.5

1.3

.1

RIV

test

at 1.1

xU

m/�

3 k

V (�

V) .

....

....

....

....

....

....

....

... .

....

....

....

....

....

....

....

...

7.2

.5.1

<

2500

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-3

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

1.4

Test fo

r accura

cy: .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

7.2

.6

1.4

.1

Voltag

e

err

or

and

phase

dis

pla

cem

ent

for

measuring w

indin

g ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..61869-3

C

l.7.2

.6.3

01

1.4

.2

Voltag

e

err

or

and

phase

dis

pla

cem

ent

for

pro

tective w

ind

ing

s ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..61869-3

C

l.7.2

.6.3

02

1.5

Verification

of

the

degre

e

of

pro

tection

of

secondary

term

inal box: .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

7.2

.7

1.5

.1

Verification o

f th

e IP

codin

g ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..7.2

.7.1

IP

54

1.5

.2

Mechan

ical im

pact te

st .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

7.2

.7.2

IK

10

1.6

Tig

htn

ess

test

at

am

bie

nt

tem

pera

ture

(a

pplic

able

for

SF

6 g

as insula

ted V

T's

Alt.

B&

D) ..

....

....

....

....

....

....

....

..7.2

.8.1

1.7

Pre

ssure

test

of

enclo

sure

(applic

able

for

SF

6 g

as

insula

ted V

T's

Alt. B

&D

) ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..7.2

.9

1.8

Short

-circuit w

ithsta

nd c

apabili

ty t

est .

....

....

....

....

....

....

....

...

IEC

61869-3

C

l.7.2

.301

1.8

.1

Altern

ative A

&C

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

1.8

.2

Altern

ative B

&D

: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-4

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

2

Sp

ec

ial

tes

ts:

7.4

2.1

Chopped

impuls

e

voltag

e

withsta

nd

test

on

prim

ary

term

inals

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....7.4

.1

2.1

.1

Altern

ative A

&C

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

2.1

.2

Altern

ative B

&D

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

2.2

Mu

ltip

le c

hopped im

puls

e t

est

on p

rim

ary

te

rmin

als

acc. to

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

. C

l.7.4

.2

2.2

.1

Altern

ative A

&C

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

2.2

.2

Altern

ative B

&D

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

2.3

Measure

ment

of

capacitance

and

die

lectr

ic

dis

sip

ation

facto

r in

ra

ng

e

from

10kV

to

Um

/�3.....................................................................

7.4

.3

2.2

.1

Altern

ative A

&C

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

tan.�

<

0.0

05

2.2

.2

Altern

ative B

&D

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

2.4

Tra

nsm

itte

d o

verv

oltag

e test (k

V p

eak)

....

....

....

....

....

....

....

....

7.4

.4

< 1

.6

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-5

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

2.5

Mechan

ical

testing

load

on

term

inals

applie

d

perp

endic

ula

r to

the V

T's

axis

(N

) ...

....

....

....

....

....

....

....

.7.4

.5

>3500

2.5

.1

Altern

ative A

&C

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

2.5

.2

Altern

ative B

&D

: ...

....

....

....

....

....

....

....

. ...

....

....

....

....

....

....

....

.

2.6

Inte

rnal arc

fault test .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

7.4

.6

2.6

.1

Inte

rnal arc

fault c

urr

ent (k

A) ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

50

2.6

.2

Arc

fault d

ura

tion (

sec).

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

0

.5

2.7

Tig

htn

ess

tests

at

low

and

hig

h

tem

pera

ture

s

(applic

able

for

SF

6 g

as insula

ted V

T's

Alt.

B&

D) ..

....

....

....

....

....

....

....

..7.4

.7

2.8

Gas

dew

po

int

test

(applic

able

fo

r S

F6

gas

insula

ted V

T's

) ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.7.4

.8

2.9

Corr

osio

n test ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..7.4

.9

2.1

0

F

ire h

azard

test ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..7.4

.10

2.1

1

Im

pedance a

nd e

xcitation m

easure

ments

acc t

o: ..

....

....

....

....

....

....

....

..IE

EE

C

57.1

3

Cl.8.3

2.1

1.1

M

easure

ment

of

short

circuit im

pedance ...

....

....

....

....

....

....

....

.C

l.8.3

.1.3

AP

PE

ND

IX N

o.

2 –

Typ

e &

sp

ecia

l te

sts

fo

r V

T's

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A2

-6

IE

C 6

1869-1

16

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

2.1

1.2

M

easure

ment

of

excitin

g c

urr

ent

and v

oltag

e a

nd

dra

win

g o

f th

e m

ag

netization c

urv

e a

t 50H

z .

....

....

....

....

....

....

....

...

8.3

.2

2.1

2

D

ischarg

e w

ithsta

nd c

apabili

ty a

cc.

to: .

....

....

....

....

....

....

....

...

Subcl

�10.5

.1.4

In S

R-1

46

2.1

3

S

eis

mic

qualif

ication test ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.IE

EE

693

Modera

te

leve

l

0.5

g

AP

PE

ND

IX N

o.

3 –

Typ

e te

sts

fo

r p

orc

ela

in in

su

lato

rs (

Alt.

A&

B)

S

PE

CIF

ICA

TIO

N S

R -

146

A3

-1�

Ap

pen

dix

3

Typ

e t

ests

fo

r P

OR

CE

LA

IN i

nsu

lato

rs

IE

C 6

2155

17

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

1

M

echan

ical fa

iling load tests

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.7.2

1.1

P

ressure

test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8.2

Altern

ative A

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

8.2

.1

> d

esig

n

pre

ssure

5 m

in

Altern

ative B

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

8.2

.2

4.2

5

desig

n

pre

ssure

-5

min

1.2

B

endin

g test:

8.3

Altern

ative A

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

8.3

.1

Altern

ative B

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

8.3

.2

2

T

em

pera

ture

cycle

test:

7.3

17 A

dd

itio

nal

sta

nd

ards

IEC

6

01

37

, 6

146

3,

60

81

5,

60

507

.

AP

PE

ND

IX N

o.

3 –

Typ

e te

sts

fo

r p

orc

ela

in in

su

lato

rs (

Alt.

A&

B)

S

PE

CIF

ICA

TIO

N S

R -

146

A3

-2�

IE

C 6

2155

17

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Rem

ark

s

3

T

ype t

ests

accord

ing t

o:

IEC

60137

3.1

W

et

pow

er

freq

uency

withsta

nd

voltag

e

test

(kV

rms)

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

8.1

325

3.2

D

ry

lightn

ing

im

puls

e

withsta

nd

voltag

e

test (k

Vpeak) .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

8.3

750

3.4

A

rtific

ial pollu

tion t

est .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

7.2

.3

and I

EC

60815

AP

PE

ND

IX N

o.

4 –

Typ

e te

st fo

r com

po

site

in

su

lato

rs (

Alt.

C&

D)

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A4

-1�

Ap

pen

dix

4

Typ

e t

ests

fo

r C

OM

PO

SIT

E in

su

lato

rs

IE

C 6

1462

18

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Re

ma

rks

1

D

esig

n t

ests

7

1.1

Tests

on inte

rfaces a

nd c

onnection a

nd f

itting

s: .

....

....

....

....

....

....

....

...

7.2

1.1

.1

Refe

rence d

ry p

ow

er

freq

uency f

lashover

test: ..

....

....

....

....

....

....

....

..7.2

.2

Ure

f

1.1

.2

Therm

al m

echanic

al pre

-str

essin

g t

est: ..

....

....

....

....

....

....

....

..7.2

.3

>0.5

x

SM

L

1.1

.3

Wate

r im

mers

ion p

re-s

tressin

g t

est: ...

....

....

....

....

....

....

....

.7.2

.4

42h

1.1

.4

Verification tests

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

7.2

.5

1.1

.4.1

S

teep fro

nt

impuls

e t

est (k

Vpeak) .

....

....

....

....

....

....

....

...

>

1000

kV

/�s

1.1

.4.2

D

ry p

ow

er

freq

uency t

est (k

Vrm

s)

....

....

....

....

....

....

....

....

80%

U

ref

30 m

in

18 A

dd

itio

nal

sta

nd

ard

s IE

C 6

01

37

,61

463

, 6

20

73

, 6

08

15

, 6

22

17

, 6

20

39

, IE

EE

98

7

AP

PE

ND

IX N

o.

4 –

Typ

e te

st fo

r com

po

site

in

su

lato

rs (

Alt.

C&

D)

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A4

-2�

IE

C 6

1462

19

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Re

ma

rks

1.1

.4.3

In

tern

al pre

ssure

test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

1.1

.4.3

.1

Gas leakag

e t

est: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

MS

P

1.1

.4.3

.2

Wate

r le

akag

e test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

SIP

5m

in

1.2

Tests

on s

hed a

nd h

ousin

g m

ate

rial .

....

....

....

....

....

....

....

...

7.3

and

IEC

62217

cl.9.3

1.2

.1

Hard

ness test ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

1.2

.2

Accele

rate

d w

eath

ering

test .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

1000h U

V

1.2

.3

Tra

ckin

g a

nd e

rosio

n test:

1.2

.3.1

1000 h

salt fog

test ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..62217-

Annex A

1.2

.3.2

5000 h

salt fog

test ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

1.2

.4

Fla

mm

abili

ty t

est .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

19 A

dd

itio

nal

sta

nd

ard

s IE

C 6

01

37

,61

463

, 6

20

73

, 6

08

15

, 6

22

17

, 6

20

39

, IE

EE

98

7

AP

PE

ND

IX N

o.

4 –

Typ

e te

st fo

r com

po

site

in

su

lato

rs (

Alt.

C&

D)

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A4

-3�

IE

C 6

1462

19

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Re

ma

rks

1.3

Test

on t

ube m

ate

rial (w

ate

r diffu

sio

n t

est)

...

....

....

....

....

....

....

....

.7.4

1.3

.1

Dye p

enetr

ation test .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

1.3

.2

Wate

r diffu

sio

n test .

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

...

1.4

Mechan

ical ty

pe t

est: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8 a

nd

Table

B.1

1.4

.1

Inte

rnal pre

ssure

test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8.4

1.4

.2

Cantile

ver

bendin

g test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8.5

2

T

yp

e t

ests

acc. to

: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..IE

C

60137

2.1

Die

lectr

ic T

ests

: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.

2.1

.1

Wet

pow

er

freq

uency

withsta

nd

voltage

test (k

Vrm

s) ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8.1

325

2.1

.2

Dry

lig

htn

ing

im

puls

e

withsta

nd

voltag

e

test

(kV

peak) .

....

....

....

....

....

....

....

... .

....

....

....

....

....

....

....

...

8.3

750

2.2

Verification o

f dim

ensio

ns ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..8.1

3

2.3

Measure

ment

of

wett

abili

ty c

lass o

f in

sula

tor

surf

aces ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..IE

C

62073

AP

PE

ND

IX N

o.

4 –

Typ

e te

st fo

r com

po

site

in

su

lato

rs (

Alt.

C&

D)

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A4

-4�

IE

C 6

1462

19

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Re

ma

rks

3

O

ther

sp

ecia

l ty

pe t

ests

3.1

Ag

ing

test: ...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.IE

EE

987

cl.5

3.1

.1

Mechan

ical ag

ing

test: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

3.1

.2

Ele

ctr

ical ag

ing t

est: ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..

3.2

Tests

on p

oly

meric insula

ting m

ate

rials

: ..

....

....

....

....

....

....

....

..IE

C

62039

3.2

.1

Resis

tance to tra

ckin

g a

nd e

rosio

n ..

....

....

....

....

....

....

....

..cl.3.2

3.2

.2

Resis

tance to c

oro

na a

nd o

zone..

....

....

....

....

....

....

....

..cl.3.3

3.2

.3

Resis

tance to c

hem

ical and p

hysic

al

degra

dation b

y w

ate

r ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..cl.3.4

3.2

.4

Tear

str

ength

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

cl.3.5

3.2

.5

Volu

me r

esis

tivity ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..cl.3.6

3.2

.6

Bre

akdow

n f

ield

str

ength

...

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

.cl.3.7

3.2

.7

Resis

tance to c

hem

ical att

ack ...

....

....

....

....

....

....

....

.cl.3.8

3.2

.8

Resis

tance to w

eath

ering a

nd U

V ..

....

....

....

....

....

....

....

..cl.3.9

AP

PE

ND

IX N

o.

4 –

Typ

e te

st fo

r com

po

site

in

su

lato

rs (

Alt.

C&

D)

S

PE

CIF

ICA

TIO

N

SR

- 1

46

A4

-5�

IE

C 6

1462

19

Test

Date

of

Test

rep

ort

Descri

pti

on

C

lau

se

Valu

e

Pla

nt

T

est

No

. V

alu

e

Re

ma

rks

3.2

.9

Resis

tance to f

lam

mabili

ty ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..cl.3.1

0

3.2

.10

Arc

resis

tance ..

....

....

....

....

....

....

....

....

....

....

....

....

....

....

....

..cl.3.1

1

3.2

.11

Gla

ss tra

nsitio

n t

em

pera

ture

....

....

....

....

....

....

....

....

cl.3.1

2

3.2

.12

Hydro

phobic

ity s

tabili

ty t

ransfe

r ..

....

....

....

....

....

....

....

..cl.3.1

3


A5-1

�

Appendix 5

MINERAL INSULATING OIL SUPPLIED FOR/WITHIN NEW

ELECTRICAL EQUIPMENT

�


A5-2�


A5-3�


A5-4�


A5-5�


A5-6�


A5-7�


�

A6-1�

Appendix 6

Calculation of SAFETY FACTOR of VT with PORCELAIN insulators including steel supporting structure and bolts

1. Dimensions & weights

1.1. VT type .......................................................................................... ��

1.2. VT dimensions and weights acc. to attached drawing ................... ��

1.3. Height of supporting structure ....................................................... 2.5 m

1.4. Height of VT .................................................................................. ��m

1.5. Weight of VT ................................................................................. ��kg

2. Stresses on mounted VT including steel supporting structure

2.1. Minimum failing bending moment for insulator .............................. ��N

2.2. Rated static terminal load .............................................................. 2400 N (including tensile force and weight due to connected conductors)

2.3. Short circuit terminal load .............................................................. 3100 N

2.4. Wind velocity on VT and connected conductors ........................... 44m/sec

2.5. Failing load for supporting structure .............................................. ��kN

3. Earthquake load characteristics

3.1. Horizontal earthquake accelerations ............................................. 0.5 g

3.2. Vertical earthquake accelerations .................................................. 0.25 g

3.3. Frequency ..................................................................................... ��Hz

3.4. Damping of critical damping .......................................................... ��

3.5. Horizontal acceleration response .................................................. 5 m/s2

3.6. Vertical acceleration response ...................................................... 2.5 m/s2

4. Condition 120 - Routinely expected loads

(Design pressure 100% for Alt. B, Mass 100%, Rated terminal load 100%, Wind pressure 30%)

4.1. VT insulator:

4.1.1. Bending moment on bottom insulator ................................... Alt.A Alt.B

4.1.2. By design pressure ............................................................... NA ��kNm

4.1.3. By rated terminal load ........................................................... ��kNm ��kNm

4.1.4. By wind pressure .................................................................. ��kNm ��kNm

20

Please add the calculation of each required value of bending moment.


�

A6-2�

4.1.5. TOTAL .................................................................................. ��kNm ��kNm

4.1.6. Safety factor for insulator ................................................. �� (Permissible failing bending moment/ TOTAL bending moment on bottom insulator)

4.2. Supporting structure:

4.2.1. Bending moment on top of supporting structure ................... ��kNm ��kNm

4.2.2. Safety factor for supporting structure .............................. �� (Permissible failing bending moment/ TOTAL bending moment on top of supporting structure)

4.2.3. Bending moment on bottom of supporting structure ............. ��kNm ��kNm

4.2.4. Safety factor for supporting structure .............................. �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure)

5. Condition 2 - Rarely occurring loads

(Design pressure 100% for Alt. B, Mass 100%, Rated terminal load 50%, Wind pressure 100%, Short circuit load 100%)

5.1. VT insulator



5.1.3. By rated terminal load ........................................................... �� kNm ��kNm

5.1.4. By wind pressure .................................................................. �� kNm ��kNm

5.1.5. By short circuit load .............................................................. ��kNm ��kNm

5.1.6. TOTAL .................................................................................. ��kNm ��kNm

5.1.7. Safety factor for insulator .................................................. �� (Permissible failing bending moment/ TOTAL bending moment on bottom insulator)

5.2. Supporting structure




5.2.4. Safety factor for supporting structure .............................. �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure


�

A6-3�


(Design pressure 100% for Alt. B, Mass 100%, Rated terminal load 70%, Wind pressure 10%, Seismic load 100%)

6.1. VT insulator





6.1.5. By seismic load .................................................................... ��kNm ��kNm

6.1.6. TOTAL .................................................................................. ��kNm ��kNm






6.2.4. Safety factor for supporting structure .................................... �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure)

7. Recommendation for foundation bolts (taking into considerations the maximum bending moment):

7.1. Axial load ...................................................................................... ��N ��N

7.2. Recommended diameter ............................................................... ��mm ��mm

7.3. Recommended bolts material (minimum yield point)


�

A6-4�

8. Total loading and Safety Factors

Total bending moment in all directions (Nm)

Required/Offered safety factor in all directions

1 Bottom section of insulator

Alt.A Alt.B Alt.A Alt.B

1.1 Condition 1 2.1/…… 2.1/……

1.2 Condition 2 1.5/…… 1.5/……

1.3 Condition 3 1.2/…… 1.2/……

2 Top section of

supporting structure

2.1 Condition 1

2.2 Condition 2

2.3 Condition 3

3 Bottom section of

Supporting structure

3.1 Condition 1

3.2 Condition 2

3.3 Condition 3


�

A7-1�

Appendix 7

Calculation of SAFETY FACTOR of VT with SILICON RUBBER insulators including steel supporting structure and bolts

1. Dimensions & weights

1.1. VT type .......................................................................................... ��

1.2. VT dimensions and weights acc. to attached drawing .................... ��

1.3. Height of supporting structure ........................................................ 2.5 m

1.4. Height of VT .................................................................................. ��m

1.5. Weight of VT .................................................................................. ��kg

2. Mechanical characteristics of insulator tube

2.1. Maximum mechanical load (MML) ................................................ ��N

2.2. Damage limit ................................................................................ ��N

2.3. Specified mechanical load (SML).................................................. ��N

2.4. Maximum service pressure (MSP) ................................................ ��MPa

2.5. Specified internal pressure (SIP) .................................................. ��MPa

3. Stresses on mounted VT including steel supporting structure

3.1. Rated static terminal load .............................................................. 2400 N (including tensile force and weight due to connected conductors)

3.2. Short circuit terminal load .............................................................. 3100 N

3.3. Wind velocity on VT and connected conductors ............................ 44m/sec

3.4. Failing load for supporting structure ............................................... ��kN

4. Earthquake load characteristics

4.1. Horizontal earthquake accelerations .............................................. 0.5 g

4.2. Vertical earthquake accelerations .................................................. 0.25 g

4.3. Frequency ..................................................................................... ��Hz

4.4. Damping of critical damping ........................................................... ��

4.5. Horizontal acceleration response ................................................... 5 m/s2

4.6. Vertical acceleration response ....................................................... 2.5 m/s2


�

A7-2�

5. Condition 121 - Routinely expected loads

(Design pressure 100% for Alt. D, Mass 100%, Rated terminal load 100%, Wind pressure 30%)

5.1. VT insulator:

5.1.1. Bending moment on bottom insulator .................................... Alt.C Alt.D




5.1.5. TOTAL .................................................................................. ��kNm ��kNm

5.1.6. Safety factor for insulator ................................................. �� (Permissible failing bending moment/ TOTAL bending moment on bottom insulator)

5.2. Supporting structure:

5.2.1. Bending moment on top of supporting structure .................... ��kNm ��kNm

5.2.2. Safety factor for supporting structure ............................... �� (Permissible failing bending moment/ TOTAL bending moment on top of supporting structure)


5.2.4. Safety factor for supporting structure ............................... �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure)


(Design pressure 100% for Alt. D, Mass 100%, Rated terminal load 50%, Wind pressure 100%, Short circuit load 100%)

6.1. VT insulator





6.1.5. By short circuit load ............................................................... ��kNm ��kNm

6.1.6. TOTAL .................................................................................. ��kNm ��kNm


21

Please add the calculation of each required value of bending moment.


�

A7-3�





6.2.4. Safety factor for supporting structure ............................... �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure


(Design pressure 100% for Alt. D, Mass 100%, Rated terminal load 70%, Wind pressure 10%, Seismic load 100%)

7.1. VT insulator





7.1.5. By seismic load ..................................................................... ��kNm ��kNm

7.1.6. TOTAL .................................................................................. ��kNm ��kNm






7.2.4. Safety factor for supporting structure .................................... �� (Permissible failing bending moment/ TOTAL bending moment on bottom of supporting structure)

8. Recommendation for foundation bolts (taking into considerations the maximum bending moment):

8.1. Axial load ....................................................................................... ��N ��N

8.2. Recommended diameter ............................................................... ��mm ��mm


�

A7-4�

8.3. Recommended bolts material (minimum yield point)

9. Total loading and Safety Factors

Total bending moment in all directions (Nm)

Required/Offered safety factor in all directions

1 Bottom section of insulator

Alt.C Alt.D Alt.C Alt.D

1.1 Condition 1 2.1/…… 2.1/……

1.2 Condition 2 1.5/…… 1.5/……

1.3 Condition 3 1.2/…… 1.2/……

2 Top section of

supporting structure

2.1 Condition 1

2.2 Condition 2

2.3 Condition 3

3 Bottom section of

Supporting structure

3.1 Condition 1

3.2 Condition 2

3.3 Condition 3

APPENDIX No. 8 SPECIFICATION SR - 146�

�

A8-1�

Appendix 8

Reliability, Availability, Maintainability

RAM For 170 kV Voltage Transformer OIL Insulated

1) Reliability

The Bidder shall present the reliability tasks and methods which are (will be) used to

improve the design for reliability, and to evaluate the MTTF/MTBF of the 170 kV

voltage transformer oil insulated components.

The Bidder shall provide expected values for the relevant parameters of the 170 kV

voltage transformer oil insulated components, and shall add their distribution

whenever possible.

2) Failure Analysis

From his Failure Reporting Analysis and Corrective Action System (FRACAS), Bidder

shall present a failure report and the analysis of the failures which occurred during

the service life of similar 170 kV voltage transformer oil insulated components

manufactured by him. The report should include the withdrawn conclusion and the

corrective actions subsequently undertaken.

3) Maintainability

Bidder shall present the maintainability tasks and methods which are (will be) used to

improve the design for maintainability and to decrease and determine the following

parameters:

(1) Frequency and duration of maintenance activities.

(2) Man power and man hours needed for maintenance.

4) Critical Accessories and Spare Parts

Bidder shall present the methods used to identify the critical accessories and spare

parts, and submit his recommendation list for these items.

Failure Mode and Effect Analysis (FMEA)

The Bidder shall submit an FMEA report in order to identify potential design

weaknesses in according with MIL-STD-1629, or IEC-60812-2006. The analysis will

include compensating provisions and inputs to the maintenance plan.

Critical items shall be identify according to Task 208 of MIL-STD-785.


�

A8-2�

5) 170 kV Voltage Transformer Oil Insulated RAM DATA

Bidder shall submit the following 170 kV Voltage Transformer Oil Insulated RAM data:

Table1: Voltage Transformer Components RAM parameters of similar construction and ratings

MTTPM

(Hrs)�

MTBPM

(Yrs)�

MTTR

(Hrs)�

EOL

(Yrs)�

MTTF

(Yrs)�

Component�

��Porcelain Insulator

��Composite Insulator

��Gaskets

��Sealing methods

��Oil level indicator

��Painting

Where: MTTF : Mean Time To Failure.

MTBF : Mean Time between Failures.

EOL : Expected Operating Life.

MTTR : Mean Time To Repair.

MTTPM: Mean Time To (perform) Preventive Maintenance.

MTBPM: Mean Time Between Preventive Maintenance.

The Contractor is kindly asked to comment on the following points:

(1) The measures taken to prevent oil leakage are:

____________________________________________________________

____________________________________________________________

(2) The oil should be checked for humidity every ______ years and replaced every

______ years.

(3) The painting should be checked every _____ years.

(4) The oil should be checked for DGA every ______ years and refill instruction for

sampled oil should be attached.

6.2 Field Demonstrated RAM Data


�

A8-3�

In Addition to the RAM data mentioned above, Bidder shall submit also the following

information:

6.2.1 Quantities of similar 170 kV Voltage Transformer Oil Insulated components

(see the above table) installed in all locations, each year since 2004, or earlier.

6.2.2 Similar 170 kV Voltage Transformer Oil Insulated components failure (�)

information like:

(1) Number of failure each year.

(2) Description of failures.

(3) Root causes classification.

(4) Mean times to repair/replace in the field (MTTR).

Please arrange the above mentioned information in the following table:

Table 2: Field Demonstrated RAM Data for similar construction and ratings voltage

transformers

Field RAM Data 2006 2007 2008 2009 2010 2011 2012 2013 2014

Total number of installed VT’s

Total No. of repairs, or replaces for any reason

Failures due to wrong design

Failures due to faulty production

Failures due to bad use/handling

Random failures

Mean Time to Repair/Replace

� Failure: any event that causes a VT cease of operation, or going out of its

Specifications.

Total accumulated operating time (VT x Years), from 20____ to 20____ is

______ VT x years.

6.3 Spare Parts


�

A8-4�

6.3.1 Critical Spare Parts

Contractor shall present the methods he used to identify the critical spare parts for

his VT and submit his recommendation list for these items.

6.3.2 Spare Parts Data

Contractor shall provide the following Spare Parts data in Table 3, for the VT’s.

Table 3: Spare Parts Data

Spare Parts for: GSA (Yrs.)

EDT (Yrs.)

SPF (Yes/No)

SPM (Yes/No)

Gaskets

Bellows (if applicable)

Others, please indicate

Where: GSA: Guaranteed time for Spares Availability.

EDT: Expected Delay Time from day of receiving order (transport time excluded).

SPF: Spare Parts is susceptible/vulnerable to spontaneous Failures.

SPM: Spare Parts required to be maintained.

6.4 Saftey

Contractor shall indicate what safety standards his VT is stand for? and how he

verifies that his VT are really stands these standards?

APPENDIX No. 9 SPECIFICATION SR – 146

A9-1�

Appendix 9

Reliability, Availability, Maintainability

RAM For 170 kV Voltage Transformer SF6 GAS Insulated

1. Reliability

The Bidder shall present the reliability tasks and methods which are (will be)

used to improve the design for reliability, and to evaluate the MTTF/MTBF of

the 170 kV voltage transformer SF6 gas insulated components.

The Bidder shall provide expected values for the relevant parameters of the

170 kV voltage transformer SF6 gas insulated components, and shall add

their distribution whenever possible.

2. Failure Analysis

From his Failure Reporting Analysis and Corrective Action System (FRACAS),

Bidder shall present a failure report and the analysis of the failures which

occurred during the service life of similar 170 kV voltage transformer SF6 gas

insulated components manufactured by him. The report should include the

withdrawn conclusion and the corrective actions subsequently undertaken.

3. Maintainability

Bidder shall present the maintainability tasks and methods which are (will be)

used to improve the design for maintainability and to decrease and determine

the following parameters:

(1) Frequency and duration of maintenance activities.


A9-2�

(2) Man power and man hours needed for maintenance.

4. Critical Accessories and Spare Parts

Bidder shall present the methods used to identify the critical accessories and

spare parts, and submit his recommendation list for these items.

5. Failure Mode and Effect Analysis (FMEA)

The Bidder shall submit an FMEA report in order to identify potential design

weaknesses in according with MIL-STD-1629, or IEC-60812-2006. The

analysis will include compensating provisions and inputs to the maintenance

plan.

Critical items shall be identify according to Task 208 of MIL-STD-785.


A9-3�

6. 170 kV Voltage Transformer SF6 Gas Insulated RAM DATA

Bidder shall submit the following 170 kV Voltage Transformer SF6 gas Insulated RAM data:

Table1:Voltage Transformer Components RAM parameters of similar construction and ratings

MTTPM

(Hrs)�

MTBPM

(Yrs)�

MTTR

(Hrs)�

EOL

(Yrs)�

MTTF

(Yrs)�

Component�

��Porcelain Insulator

��Composite Insulator

��Gaskets

��Sealing methods

��Manometer

��Gas Monitor

��Pressure relief

��Painting

Where:

MTTF : Mean Time To Failure.

MTBF : Mean Time between Failures.

EOL : Expected Operating Life.

MTTR : Mean Time To Repair.

MTTPM: Mean Time To (perform) Preventive Maintenance.

MTBPM: Mean Time Between Preventive Maintenance.


A9-4�

The Contractor is kindly asked to comment on the following points:

(1) The measures taken to prevent SF6 gas leakage are:

____________________________________________________________

____________________________________________________________

(2) The maximum permissible SF6 gas leakage rate is: ...... % per year.

(3) The probability of SF6 gas leakage rate to exceed the open permissible value is ____.

(4) The SF6 gas should be checked for humidity every ______ years and replaced every _____ years.

(5) The painting should be checked every _____ years.

6.2 Field Demonstrated RAM Data

In Addition to the RAM data mentioned above, Bidder shall submit also the

following information:

6.2.1 Quantities of similar 170 kV Voltage Transformer SF6 gas Insulated

components (see the above table) installed in all locations, each year since

2000, or earlier.

6.2.2 Similar 170 kV Voltage Transformer SF6 gas Insulated components

failure (�) information like:

(1) Number of failure each year.

(2) Description of failures.

(3) Root causes classification.

(4) Mean times to repair/replace in the field (MTTR).


A9-5�

Please arrange the above mentioned information in the following table:

Table 2: Field Demonstrated RAM Data for similar construction and ratings voltage

transformers

Field RAM Data 2006 2007 2008 2009 2010 2011 2012 2013 2014

Total number of installed VT’s

Total No. of repairs, or replaces for any reason

Failures due to wrong design

Failures due to faulty production

Failures due to bad use/handling

Random failures

Mean Time to Repair/Replace

� Failure: any event that causes a VT cease of operation, or going out of its Specifications.

Total accumulated operating time (VT x Years), from 20____ to 20____ is ______ VT x years.


A9-6�

6.3 Spare Parts

6.3.1 Critical Spare Parts

Contractor shall present the methods he used to identify the critical spare parts for

his VT and submit his recommendation list for these items.

6.3.2 Spare Parts Data

Contractor shall provide the following Spare Parts data in Table 3, for the VT’s.

Table 3: Spare Parts Data

Spare Parts for: GSA (Yrs.)

EDT (Yrs.)

SPF (Yes/No)

SPM (Yes/No)

Gaskets

Bellows (if applicable)

Pressure relief

Others, please indicate

Where:

GSA: Guaranteed time for Spares Availability.

EDT: Expected Delay Time from day of receiving order (transport time excluded).


A9-7�

SPF: Spare Parts is susceptible/vulnerable to spontaneous Failures.

SPM: Spare Parts required to be maintained.

6.4 Saftey

Contractor shall indicate what safety standards his VT is stand for? and how he

verifies that his VT are really stands these standards?

Prepared

by D. Visan


A10-1�

The Israel Electric Corporation Spec/Procedure No. 17-1600/99

Operation Division Issue 2

Chief Chemist's Department Page No. 1

From 8

Appendix 10

SPECIFICATION FOR PAINTING ON GALVANIZED SURFACES BY

WET/ELECTROSTATIC POWDER PAINTING

1. SCOPE

This specification covers the requirements for painting of steel surfaces hot

dipped or electrolytically galvanized.

Galvanized steel shall be protected by paint (duplex system) except for

threaded items such as nuts and bolts which will be chromated according to

the instructions of the laboratory of materials.

Painting on galvanized surfaces may be problematic and a test patch is

recommended in order to assure a proper adhesion of the primer on the

prepared surface.

2. SURFACE PREPARATION

2.1. On hot dip Galvanized items

2.1.1. Solvent cleaning

Cleaning all surfaces from dirt, dust, oil, grease using a suitable

solvent to SSPC-PS-1-1982.

Approved “Chemitaas” products: “Ardox 6-551”, BC-70 or

similar products of other manufacturers.

2.1.2. Surface treatment

By one of the following methods:

A. Brush-off blast cleaning

According to SSPC-SP-7 specification.

Will be performed only by authorized workers.

Authorization shall be granted after ability to perform

roughening of the zinc coating and remove no more than 10

microns of the zinc layer. The zinc layer thickness shall be

examined before and after blasting.


A10-2�




From 8

B. Chemical treatment

Submerging the item in a phosphating bath type “ZINC-

PHOSPHATE” conforming to BS. 3189-1991standard.

2.2 On electrolytically galvanized items

2.2.1. Solvent cleaning

According to par. 2.1.1.

Surface treatment

By one of the following methods:

A. Mechanical

The surface shall be roughened to a degree suitable for the

specified paint system.

Approved surface cleaning media are listed in par. 6.3.

B. Chemical treatment according to par. 2.1.2B.


A10-3�




From 8

3. PAINTING

ENVIRONMENT SUBSTRATE PAINTING SYSTEM THICKNESS

MICRON REMARKS

3.1 Internal

location or external

in a dry

environment

3.1.1 Hot dip

galvanizing zinc

layer thickness

over 80 micron

3.1.1.1 Liquid paints

Epoxy polyamide

modified special for

galvanizes surfaces / two

component aliphatic

polyurethane.

30

30

See par. 4.1 for

approved

manufactures and

products see par.

6.1 and 6.2 remarks

Total 60

3.1.1.2 Electrostatic

power painting with

pure polyester powder

60 See par. 4.2 for

approved

manufacturers and

products.

See par. 5 technical

requirements.

3.1.2

Electrolytic

galvanizing

20-40 micron

zinc layer

thickness

3.1.2.1 Liquid paints

Epoxy polyamide

modified special for

galvanized surfaces

70

See par. 4.1 for

approved

manufactures and

products

Two component

aliphatic polyurethane.

50 See par. 6.1, 6.2

Remarks.

Total 120

3.1.2.2 Electrostatic

powder painting with


100 See par. 4.2 for

approved

manufactures and

products.


requirements.

Total 100


A10-4�




From 8

ENVIRONMENT SUBSTRATE PAINTING SYSTEM THICKNESS

MICRON REMARKS

3.2

External

location marine

or industrial fume

environment

3.2.1

Hot dip

galvanizing zinc

layer thickness

over 80 micron

3.2.1.1

Liquid paint

epoxy polyamide

modified special

for galvanized surfaces

70 See par. 4.1 for

approved

manufactures and

products.

Two component

Aliphatic Polyurethane

50

See par. 6.1 and 6.2

Remarks

Total

3.2.1.2

Electrostatic

powder painting

with pure

polyester

powder

120

80

See par. 4.2 for

approved

manufacturer.


requirements.

3.2.2

Electrolytic

galvanizing 20-

40 micron zinc

layer thickness

3.2.2.1 Epoxy

polyamide modified

special for galvanized

surfaces.

Two component

aliphatic polyurethane

Total

100

50

150

See par. 4 for

approved

manufacturers and

products.

3.2.2.2

Electrostatic

powder painting with


80

See par. 4.2 for

approved

manufacturers.


requirements.


A10-5�




From 8

4. Paint manufactures and products approved

4.1 Wet painting procedure

4.1.1 Primer

Product name Manufacturer Remarks

Epitamarin Uniseal brown Tambour

code – 842-xx

Epogal Tambour code – 644-

xxcode – 644-xx

Epoxy Primer 524 Univercol

Rust Bond Penetrating Carboline

CarboMastic Primer 90 Carboline Not recommended for

thickness under 70 microns

Amerlock 400 Ameron Not recommended for


Du-Pont – 25P Du-Pont Not recommended for


Sigma Cover CM 7412 primer Sigma

Sigma Cover Prim 7413 Sigma

Vigor EP 201C Freitag

4.1.2 Top coat

TAMAGLASS

Unicryl

Carboline 124

TAMBOUR

Univercol

Carboline

Amercoat 450 S Ameron

Imron 333/imron 326

Sigma Dur HB Finish

7524

Du-Pont

SIGMA

Vigor PU 239 Freitag


A10-6�




From 8

4.2 Electrostatic powder painting

Product name Manufacturer Remarks

Polyester powder Shamir Tambour 185-xxx

Polyester powder Unilac

series 7700

Univercol 7700

Polyester powder David Powder

5. Technical Requirement for electrostatic powder painting

Laboratory

tests will be carried out on panels measuring 100 x 150 x 0.7 mm.

5.1 Thickness of Coating

At least 80 Microns. The test to be according to SSPC-PA1/1982.

5.2 Adhesion

Pull-off according to ASTM D 4541-85. Test dolly 20 mm. Using Acrylic

Adhesive (DP-805, Scotch-weld or equivalent). Minimum 1000 psi.

5.3 Hardness

Hardness of coating to scratching: 4000 gr. According to ISO R 1518.

5.4 Impact

According to ASTM D-2794: 25 Kg/cm. Will not be every cracking of the

coating, nor any detachment from the substrate.

5.5 Extensibility

ISO-1520-Erichsen Cupping: 6 mm without cracks or detachments.


A10-7�




From 8

5.6 Permeability

A coated panel will be partially submerged in pressure cooker containing

distilled water to a level of at least 25 mm. Cooking at least for two hours

after the appearance of steam.

After cooling of the cooker and the panel, the coating should be

examined: no bubbles should appear on the surface. (They are acceptable

only near the edges).

5.7 Resistance to Salt Spray Fog:

Three panels will be placed in al salt water chamber for 1000 hours after

being cross-cut in the center of the plate with an X, 50-70 mm long. After

drying for 24 hours at room temperature, adhesion to the cross-cut will be

examined.

Spread of rust along the lines and separation of the coating must not

exceed 2 mm. There must be no bubbles or rust spots on the surface

remote from the cut and the edges of the plate.

6. Quality assurance

Is based on the authorization of the process and manufacturer that shall

be granted after ability to supply panels that will conform to the

requirements specified in par. 5.

During the fabrication only thickness off the coating will be checked.

There are not permitted measurements under the specified thickness in

par. 5.1.

REMARKS

1. Damaged hot dip galvanized surfaces must be repaired by applying at least two coats

of organic zinc rich coatings to give a minimum dry film thickness of 60 micron.

Approved products:

“Z.R.C” – I.E.C – catalog no. 1312891

“BRITE ZINC” – catalog no. ………...

“ ZINGA” -catalog no. 2392603.


A10-8�

2. In the painting system will be involved only paints from the same manufacturer

3. Every two successive coats must be color contrasted.




From 8

4. Surface profile producing media recommended: non-woven abrasive wheels

and discs such as: 3 M Scotch-Brite clean strip discs and wheels.

Coated

abrasive discs (sending pads) as: Flap wheels such as: Grind 0 Flex Wheels

from Merit Corporation

Needle

guns consisting of a bundle of wire “needles” which can impact a surface.

5. Phone number of the approved manufacturers:

- Tambour Paints Ltd. 04-9853611

- Univercol Ltd. 09-8655370

- Brite products-Distributor-Chemital 03-5616316

- Carboline – Distributor LESHEM TAASIOT 03-5568435

- Du-Pont – Distributor CHEMITAL 03-5616316

- Ameron – Distributor Chemarine 03-5620511

- Freitag – Distributor ARAD ANDASA 07-9953666

- David Powder Ltd. 06-540325

- ZRC – Distributor TIT 04-8678140

- ZINGA-distributor MBL 03-5464578

Prepared:

Y. Casapu

Approved:

Dr. E. Sutskover