161/11.5 kV Ein-Karem Substation 161/11.5 kV Kisalon Substation … · 2018-02-11 · Karem...

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161/11.5 kV Ein-Karem Substation

161/11.5 kV Kisalon Substation

SPECIFICATION FOR

170 kV Hybrid Switchgear

October , 2017

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TABLE OF CONTENTS

Page

1. PURCHASER ........................................................................ 3

2. NAME OF EQUIPMENT ......................................................... 3

3. WORKS TO BE EXECUTED FOR AND IN TWO ELECTRICAL SUBSTATIONS .......................................................................... 3

4. LOCATION OF EQUIPMENT ................................................... 3

5. SCOPE OF WORK & SUPPLY .................................................. 3

6. INTERCHANGEABILITY ......................................................... 7

7. STANDARDS & CODES .......................................................... 7

8. TECHNICAL DOCUMENTATION ............................................. 9

9. TECHNICAL REQUIREMENTS ............................................... 11

10. FUNCTIONAL REQUIREMENTS ............................................ 66

11. TESTS & INSPECTIONS ........................................................ 36

12. PACKING & DELIVERY ........................................................ 37

13. NAME PLATE ..................................................................... 38

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1. PURCHASER MEKOROT National Water Co. Ltd.

2. NAME OF EQUIPMENT 170 KV Hybrid Switchgear for Substation (HS).

3. WORKS TO BE EXECUTED FOR AND IN TWO ELECTRICAL SUBSTATIONS The provisions of this documents shall apply to each of the electrical substations: (1) Ein-Karem; and (2) Kisalon. Hence the provisions and requirement shall be read to apply to both substations regardless of whether or not this principal was explicitly indicated certain provisions in this document while not being mentioned in others.

4. LOCATION OF EQUIPMENT The HS will be installed outdoor in Ein-Karem and Kisalon substation.

5. SCOPE OF WORK & SUPPLY 5.1. General

5.1.1. This specification outlines, from a technical point of view, the requirements

applicable to the design, manufacturing, testing and supply of outdoor 170KV substation equipment for Ein-Karem and Kisalon pumps station in

Israel. 5.1.2. The substation shall be outdoor and constructed from integrated

multifunctional "Hybrid" SWG modules (hybrid gas insulated technology). 5.1.3. The substation shall be connected to Israeli national grid 161KV system and

shall be part of it. In Kisalon substation It shall feed also two 30MVA power transformers for the pump station, and In Ein karem substation It shall feed also two 45MVA power transformers for the pump station.

5.1.4. Client approval of any type of the offered HV equipment is subjected to prior approval of Israeli Electric Company Ltd (IECo) to the specific offered equipment.

5.1.5. Bidder is responsible to get IECo approvals (in written documents) to the equipment within the time schedule mentioned in the Contract documents. Equipment shall be accepted unless it is approved first by IECo.

5.1.6. Bidder shall fill all the technical data sheets of this Spec. Additional data, as necessary, shall be provided to IECo for equipment approval procedure

5.2. Supplier shall supply the following items:

5.2.1. Item 1: Complete unit of HV Line or Coupler Bay. Quantity – six (three

units for Ein-Karem substation and three units for Kisalon substation).

5.2.2. Item 2: Complete unit of HV Transformer Bay. Quantity – four (two units

for Ein-Karem substation and two units for Kisalon substation).

5.2.3. Item 3: Local control panel for each unit. Quantity – ten (five for Ein-

Karem substation and five for Kisalon substation).

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5.2.4. Item 4: Steel structure support for each unit. Quantity – ten (five for Ein-

Karem substation and five for Kisalon substation).

5.2.5. Item 5: Spare parts & Special tools (in accordance with the list of spare

parts detailed in para. 5.7).

5.3. Scope of work:

5.3.1. Design, develop, manufacture, test, preserve, pack and supply the

required equipment, cooperate with others where necessary, factory

tests, supply all relevant electromechanical information necessary for

complete design for all purposes linked with proper operation as well as

for commissioning and maintenance, preserve, pack and furnish the

equipment, delivery in Purchaser’s stores or sites, installation, test and

verify equipment on site, erection and putting into operation, all in

accordance with this Specification as detailed hereunder.

HS shall be suitable for outdoor installation.

HS shall be complete with all accessories and appurtenances as

specified hereinafter.

HS shall be capable of withstanding electrical, mechanical and thermal

ratings of the specified systems.

All joints and connections shall be able to withstand the forces of

expansion, contraction, vibration, specified seismic requirements and

environmental conditions without damage, deformation, malfunction and

leakage.

Optimized arrangement is required to reduce installation space,

installation time, provide ease operation, minimize maintenance and

repair costs and facilitate future additions and extensions.

5.4. Transportation and Erection

5.4.1. Supplier shall be responsible for transporting the Hybrid Switchgear to

the substation site including unload and erection on concrete base.

Field mounting of the Hybrid SWG modules, assembling and

connecting of all its components and accessories shipped loose

(foundations by others).

Supplier shall leave on site all special tools required for handling the

Hybrid Switchgear.

5.5. Commissioning and Start-up

5.5.1. Supplier shall be responsible and shall provide a professional engineer

for full commissioning and start-up of the Hybrid Switchgear.

Commissioning and start-up shall be executed after completion of

erection works, electrical connections and wiring of protection, control

and measuring circuits.

Commissioning and start-up shall include among others:

Whole work of erecting the HS

Putting into service

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Instructing and supervising the owner’s personnel in operating,

troubleshooting and servicing the HS.

5.6. Special Tools

5.6.1. Supplier shall design any special equipment or tools to handle, lift,

disassemble, check, replace and reassemble the Hybrid Switchgear.

Supplier shall use and maintain this equipment during erection and

transportation at his responsibility for any damage to the tools or any

other equipment.

5.7. Supply of Spare, Renewal Parts & Special tools

5.7.1. Contractor shall provide with the proposal spare parts & special tools,

including names of original Contractors and their catalog numbers.

5.7.2. See attached list of spare parts & Special tools:

№ Item description Quantity

For Ein-Karem substation

For Kislon substation

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170 kV, 2500 A, 50 kA/sec, complete unit of HV Line Bay including operating mechanisms, current transformers and all accessories and appurtenances in accordance with Specification for 170 kV Hybrid Switchgear

1 1

2 Operating mechanism for integrated disconnector and earthing switch

1 1

3 Single phase current transformer with four (4) cores ring type for line bay

1 1

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Single phase current transformer with four (4) cores ring type for coupler bay

1 1

5 170 kV insulator for the HS module

3 3

6 Pass insulator 2 2

7 Integrated operating mechanism for line bay circuit breaker

1 1

8 Electrical motor for circuit breaker operating mechanism

1 1

9 Independent trip coil 3 3

10 Independent close coil 3 3

11 Rapture disk cat 1 1

12 Heating elements 3 3

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№ Item description

Quantity

For Ein-Karem substation

For Kislon substation

13 Set of gaskets 1 1

14 Glass for peephole window on the earthing switch and gaskets

3 3

15 Glass for peephole window on the isolator and gaskets

3 3

16 Set of auxiliary contacts for earthing switch

3 3

17 Electrical motor for integrated disconnector and earthing switch operating mechanism

1 1

18 Auxiliary contacts (4NO+4NC) for electrical motor

3 3

19 Absorption material 3 3

20 Safety valve 2 2

21 Set of special tools for turning circuit breaker main shaft

1 1

22 Set of special tools for turning operating mechanism

1 1

23 Set of special tools for turning integrated disconnector and earthing switch

1 1

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Set of special tools in accordance with Manufacturer requirements for HS erection, dismantling and maintenance

1 1

5.8. Shipment and Handling of Goods

5.8.1. Supplier shall provide documentation explaining the exact way the

shipment and land transportation will be done to assure that no damage

of any type will occur.

5.8.2. Supplier shall inform Purchaser, three months in advance, shipping

date, carrier's name(s) and bill of materials.

5.8.3. All imported equipment and component must carry certificates of

compliance with Israeli mandatory regulations and permits to be

imported into and operated within the State of Israel.

5.9. Compliance with IECo instructions

5.9.1. Upon the stage and by the time instructed by the IECo, The proposed

equipment will be examined and approved according to the processes

detailed in customer connection procedure, ,(denoted in Hebrew: " נוהל

"לקוחות חיבור ) in the applicable version as instructed by the IECo while

complying with all relevant IECo thresholds as instructed by it.

Note these approvals are separate to the precondition principal approval

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of IECo the tenderer was required to obtain for the purpose of award

and contract signature.

5.9.2. List of all subcontractors or sub suppliers, including name, address and

status of QMS versus ISO 9001:2008 standards (or equivalent) and

attach a copy of their Q.M.S. certificate

6. INTERCHANGEABILITY The Hybrid Switchgears 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. All dismountable parts, of the same type and rating, shall be also interchangeable for all HS components and, when so interchanged, shall perform their function equally well in every respect.

7. STANDARDS & CODES 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. 7.1. 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 Supplier’s country. In such cases, the standards

themselves shall be supplied.

7.2. The terminology used in this Specification, is, except where otherwise

indicated, in accordance with IEC 62271 Publications.

7.2.1. IEC 62271-1:2011 High-voltage switchgear and controlgear– Part 1:

Common specifications

7.2.2. IEC 62271-4:2013 High-voltage switchgear and controlgear - Part 4:

Handling procedures for sulphur hexafluoride (SF6) and its mixtures

7.2.3. IEC 62271-100:2012 High-voltage switchgear and controlgear - Part

100: Alternating current circuit-breakers


102: Alternating current disconnectors and earthing switches


110: Inductive load switching


203: Gas-insulated metal-enclosed switchgear for rated voltages

above 52 kV


205: Compact switchgear assemblies for rated voltages above 52 kV

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207: Seismic qualification for gas-insulated switchgear assemblies for

rated voltages above 52 kV


310: Electrical endurance testing for circuit-breakers above a rated

voltage of 52 kV

7.2.10. IEC 61869-1:2007 Instrument transformers – Part 1: General

requirements

7.2.11. IEC 61869-2:2012 Instrument transformers – Part 2: Additional

requirements for current transformers

7.2.12. IEC 62155:2003 Hollow pressurized and unpressurized ceramic and

glass insulators for use in electrical equipment with rated voltages

greater than 1 000 V

7.2.13. IEC 60529:2013 Degrees of protection provided by enclosures (IP

Code)

7.2.14. IEC 62262:2002 Degrees of protection provided by enclosures for

electrical equipment against external mechanical impacts (IK code)

7.2.15. IEC 60068 Environmental testing

7.2.16. IEC 61463:2000 Bushings - Seismic qualification

7.2.17. IEC 60138:2008 Insulated bushings for alternating voltages above

1000 V

7.2.18. IEC 60463:2007 Composite hollow

7.2.19. IEC 61000 Electromagnetic compatibility (EMC)

7.2.20. IEC 60376:2005 Specification of technical grade sulfur hexafluoride

(SF6) for use in electrical equipment

7.2.21. IEC 81346 Industrial systems, installations and equipment and

industrial products

7.2.22. IEC 61439-1:2011 Low-voltage switchgear and controlgear

assemblies - Part 1: General rules

7.2.23. IEC 60137:2008 Insulated bushings for alternating voltages above

1000 V

7.2.24. IEC 60273:1990 Characteristic of indoor and outdoor post insulators

for systems with nominal voltages greater than 1000 V

7.2.25. IEC 60815:2008 Selection and dimensioning of high-voltage insulators

intended for use in polluted conditions

7.2.26. ISO 9001:2015 Quality management systems -- Requirements

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8. TECHNICAL DOCUMENTATION REQUIRED

8.1. GENERAL

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

8.1.2. Dimensions and weights shall be shown in metric units.

8.1.3. All documents shall be submitted in doc and pdf formats.

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

8.2. TECHNICAL DOCUMENTS TO ACCOMPANY THE PROPOSAL (T)

8.2.1. Description and drawings of complete Hybrid Switchgear, showing all

components and the corresponding identification number.

8.2.2. Description and drawing of the terminals.

8.2.3. Description and drawing of the insulator from insulator Supplier.

8.2.4. Cross-sections of Hybrid Switchgear, including the breaking chamber

and its enclosure.

8.2.5. Wiring diagram.

8.2.6. Description of the breaking processes of the breaker for high and low current.

8.2.7. Description and schematic drawing of the operating mechanism of the breaker.

8.2.8. Breaker control circuits.

8.2.9. Contact movement diagram for main contacts, and auxiliary switch.

8.2.10. Drawing with indication of all the stresses transmitted to foundation.

8.2.11. Drawing of the nameplate.

8.2.12. Example of routine test report for offered type.

8.2.13. Type test reports for offered type of the HS.

8.2.14. Drawings and description of handling and storage

8.2.15. Drawings and description of packing & delivery

8.2.16. Details of shock indicators

8.2.17. General instruction books for erection, operation and maintenance

8.2.18. Manufacturer's requirements for prolonged storage before erection, taking into account the specific conditions under described service condition

8.2.19. Manufacturer's requirements for transport on roads and on site

8.2.20. A list of Quality Assurance Standards and Quality Assurance Manual

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8.3. TECHNICAL DOCUMENTS AFTER CONTRACT SIGNATURE (C)

After contract signature, Supplier shall, within 30 days of the date of signature, submit to the Purchaser for approval one (1) CD including the files of documents and drawings in format doc, dwg. and pdf., covering the following information :

8.3.1. Descriptions, general outline drawings and relevant cross sections of the Hybrid Switchgear 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.

8.3.2. Detailed drawings of steel supporting structure including dimensions, material and type of protection against corrosion

8.3.3. Cross sections through Hybrid Switchgear'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 Hybrid Switchgear. Easy identification of the

drawings pertaining to the items in the list is required.

8.3.4. Description and drawing of the insulators from insulators Manufacturer.

Test report shall be presented.

8.3.5. Electrical operating mechanism.

8.3.6. Schematic and detailed wiring diagram.

8.3.7. Complete nameplate drawing.

8.3.8. Supplier is free to supply any additional information considered necessary for clarifying various aspects of Hybrid Switchgear

performance, operation, maintenance etc.

8.3.9. Purchaser reserves himself the right to require all necessary additional data, descriptions, drawings, etc. that may contribute in completing.

Information supplied by Supplier about the Hybrid Switchgear.

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

above.

8.3.11. After approval of the above drawings, Supplier shall submit to the Purchaser for approval one (1) set 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 reports.

8.3.12. The supplier shall be responsible for providing the Purchaser a complete set of "as made" drawings of the facility and works the Supplier is

awarded up to three months after finishing the works.

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9. TECHNICAL REQUIREMENTS (T)

The Hybrid Switchgear shall conform to all requirements of this specification, but is not limited to them. Compliance by Supplier with this specification does not relieve him of his responsibility to supply equipment of proper design, suitable for the intended use equipment.

DESCRIPTION OFFERED

9.1. ENVIRONMENTAL CONSIDERATIONS & SERVICE CONDITIONS

9.1.1. SYSTEM DATA

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

Highest system voltage (line to line) (kV)

170

Neutral connection in the 170 kV systems effectively earthed

Earth fault factor. 1.4

Frequency (Hz) 50

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

9.2. CLIMATIC CONDITIONS

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

9.2.2. Permissible ambient air temperature:

Maximum (0C) +50

Minimum (0C) -5

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

9.2.3. Permissible humidity:

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

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

9.2.4. Rain intensity (mm/min)

15

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

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DESCRIPTION OFFERED

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

1120

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

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9.3. ENVIRONMENTAL CONDITIONS REQUIRED

9.3.1. Environmental parameters according to: IEC 60721-3-4

9.3.2. Severe atmospheric and industrial air pollution, dust, salt spray, wind- driven sand and dust in air (mechanically active substances as defined in subcl. 8.1.3.5 hereinafter).

9.3.3. Water from sources other than rain : Spraying water and water jets with water velocity of 15 (m/sec).

9.3.4. Chemically active substances according to IEC 60721 Table IV 4C3.

9.3.5. Mechanically active substances according to IEC 60721 Table V 4S3.

9.4. SPECIAL REQUIREMENTS FOR ENVIRONMENTAL PROTECTION

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:

9.4.1. 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 µm on average with no measured thickness to be less than 90 µm. 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 µm. 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.

9.4.2. 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 20µm. 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.

9.4.3. 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;

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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.

9.4.4. 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.

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

9.4.6. 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 µm minimum thickness over the exposed bimetallic contact and surrounding area.

9.4.7. 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.

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

Hot dip for internal installations: one layer thickness of 50 µm.

Hot dip for external installations:

one layer of primer thickness of 50 µm.

one layer of finish thickness of 40 µm.

total thickness of 90 µm.

Electrolytically plated internal or external:

one layer of primer thickness of 50 µm.

one layer of intermediate thickness of 40 µm.

one layer of finish thickness of 25 µm. total

thickness of 115 µm.

9.4.9. 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.

9.4.10. Supplier is requested to describe or indicate deviations (see Clause 15) from above requirements. In case no deviations are mentioned it will be understood that Manufacturer’s offer entirely complies with the

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above mentioned requirements.

9.5. SEISMICITY OF THE SITE

9.5.1. The seismic design of the HS shall be based on the seismic qualification requirements stated in IEEE Std. 693-2005

9.5.2. The required seismic qualification level shall be Moderate level

9.5.3. Peak horizontal ground acceleration with a 85% probability not to be exceeded 0.5g over a 50 years

Vertical severities (z direction) ground acceleration – 0.25g

9.6. OTHER REQUIREMENTS

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

9.6.2. The equipment shall be vermin proof.

9.7. DESIGN AND CONSTRUCTION

9.7.1. The HS and all its accessories shall be constructed as to comply with the ratings and to meet all test requirements laid down herein with respect to insulation strength and mechanical operation.

9.7.2. The HS shall be constructed from 170KV integrated multifunctional gas insulated (GIS) module. The gas insulated compact module shall be designed for use with SF6 gas complying with provisions acc. to IEC 60376/2005.

9.7.3. The module shall be single phase metal enclosed.

9.7.4. The module shall be suitable for outdoor installation in single bus bar configuration.

9.7.5. A module shall combine several functions by integration of circuit breakers, disconnectors, earthing switches, current transformers.

9.7.6. All the components encompassing the integrated module must be in accordance to the relevant IEC standard.

9.7.7. All the components constituting the integrated multifunctional module must have technology, safety , operation , reliability and performance, identical to the relevant conventional GIS equipment in service since long period.

9.7.8. Circuit breakers and integrated disconnectors and earthing switches shall be SF6 insulated.

9.7.9. Current transformers shall be ring type.

9.7.10. Integration of disconnector/earthing switches shall be possible both side of the module (per one line diagram, see page 25).

9.7.11. The earthing switches shall be manually and motor operated.

9.7.12. Isolating and earthing functions shall be carried out using three position contact technology (closed, isolated, earthed).

9.7.13. The module shall be fully pre-fabricated at the factory.

9.7.14. The module shall be electrically and mechanically fully pre-tested at factory.

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9.7.15. Circuit breaker shall have single-pole operation mechanism.

9.7.16. Electrical and mechanical interlocking between breaker and the disconnectors / earthing switches shall be always available.

9.7.17. The disconnecting and the earthing operations, in all cases, shall be executed into the full respect of safety distances and clearances and so in accordance to the relevant IEC standard. Position indicator shall be included. Special windows shall be provided for eye verification and visibility of the actual position of the switches.

9.7.18. The module shall be connected to the standard outdoor bus bars system with conventional insulators (bushings).

9.7.19. All components and elements shall have adequate physical properties to withstand all expected forces during normal and fault conditions.

9.7.20. Steel structure and supports will be made of hot dip galvanized steel.

9.7.21. Expected service life: HS shall be designed and built to operate at least 30 years of continuous operation at rated power and site conditions.

9.8. Line Bay (see page 25)

Line bay for incoming lines shall include the following main components (not limited to) :

9.8.1. One ( 1 ) line bay module consist of:

One ( 1 ) three-pole circuit breaker with single pole operation (adequate for automatic re-closing system)

Three (3) single phase CT with four (4) cores ring type.

Two (2) combined three-pole disconnector/earthing switch, motor and manual operated.

9.9. Bus coupler bay (see page 25)

Bus coupler bay shall include the following main components (not limited to):

9.9.1. One ( 1 ) bus coupler bay module consist of:

One ( 1 ) three-pole circuit breaker with single pole operation

Three (3) single phase CT with four (4) cores ring type.


9.10. Transformer Bay (see page 25)

Transformer bay shall include the following main components (not limited to) :

9.10.1. One ( 1 ) Transformer bay module consist of:

One ( 1 ) three-pole circuit breaker with single pole operation

Three (3) single phase CT with five (5) cores ring type.


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DESCRIPTION OFFERED

9.11. General requirements for the module:

9.11.1. Nominal System Voltage 161 kV

9.11.2. Maximum Rated voltage 170 kV

9.11.3. Rated insulation level:

Dry lightning Impulse withstand voltage -1.2/50μs wave

(kV peak)

750

Power frequency withstand voltage 1 min in wet conditions (kV r.m.s.)

325

Lightning impulse withstand voltage (Up) across open switching device and isolating distance (CB's and disconnectors)

860 kV peak

Rated 1 min power frequency withstand voltage (Ud) across open switching device and isolating distance (CB's and disconnectors)

375 kV r.m.s

9.11.4. Rated frequency 50 Hz

9.11.5. Rated normal current (Ir) at maximum ambient temperature +50°C

2000 A

9.11.6. Rated short time withstands current- 1 sec 50 kA

9.11.7. Rated peak withstand current (Ip) 125 kA peak

9.11.8. Rated DC supply voltage of closing and opening devices and auxiliary circuits

9.11.9. Rated DC supply voltage for motorized operating mechanism

9.11.10. Rated AC supply voltage for auxiliary circuits

9.11.11. Power frequency withstand voltage 1 min for auxiliary and control circuits

2 kV r.m.s

9.11.12. Degree of protection of enclosure IP55

9.11.13. Insulators : Outdoor heavy duty, epoxy impregnated fiberglass with silicone rubber sheds insulator (porcelain insulator is acceptable as well)

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DESCRIPTION OFFERED

9.11.14. Creepage distance phase to ground – not less than

5270 mm

9.11.15. Arcing distance

> 1500 mm

9.11.16. Service load (sum of all loads occurring simultaneously in service: conductor pull, conductor weight and wind, short-circuit excepted) in any direction in space not less than

2700 N

9.11.17. Testing load for 60 sec, applied to the midpoint of the terminal perpendicularly to the insulator axis

4700 N

9.11.18. Short-time load (sum of all loads occurring simultaneously in case of short-circuit) in any direction in space not less than

6700 N

9.11.19. Safety factors of the insulators taking into consideration the requirements under subcl. 8.11.16, 8.11.17, 8.11.18:

9.11.20. Condition 1 – routinely expected load including: static service load 100%, mass 100%, load due to wind 30%

>2.1

9.11.21. Condtion 2 – rarely occurring extreme loads including: static service load 70%, mass 100%, load due to wind 10%, seismic load 100%

>1.2

9.11.22. Condition 3 – rarely occurring extreme loads including: static service load 50%, mass 100%, load due to wind 100%, short circuit load 100%

>1.5

9.11.23. The materials used in design of composite insulators

9.11.24. The insulators shall be only "windformed " type, not "drop shaped edge"

9.11.25. Color of insulator grey

9.11.26. The design of composite insulator Tybe type

9.11.27. Wall thickness of the housing (mm)

9.11.28. Indicate if electrode or capacitive foil and film condenser body are provided

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DESCRIPTION OFFERED

9.11.29. Indicate if corona ring is provided

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

9.11.31. Specified internal pressure (SIP) (Mpa)

9.11.32. Maximum service pressure (MSP) (Mpa)

9.11.33. Maximum permissible axial stress (Mpa)

9.11.34. Specified Mechanical load (SML) of composite insulator

11175 N

9.11.35. Maximum Mechanical load (MML) of composite insulator

4470 N

9.11.36. Total time until burn-through at line to ground short circuit current of 50 kA r.m.s. not less than

0.5 sec

9.11.37. Rated transient recovery voltage characteristics for:

9.11.38. Teminal faults acc. to IEC 62271-100/2012, table 3 cl. 4.102, cl. 6.106

9.11.39. Short-line faults acc. to IEC 62271-100/2012, table 3 cl. 4.105, cl. 6.109

9.11.40. Rated out-of-phase making and breaking current acc. to IEC 62271-100/2012, table 3 cl. 4.106, cl. 6.110

9.11.41. Rated small inductive breaking current acc. to IEC 62271-100/2012

9.11.42. Protection of the LCC against mechanical impact

IK10

9.11.43. EMC requirements shall be taken into consideration in all phases of planning of the compact module equipment acc. to IEC 62271-1/2011 cl. 5.18

9.12. General requirements for circuit breaker



19

DESCRIPTION OFFERED


Dry lightning Impulse withstand voltage -1.2/50μs wave (kV peak)

750


325

Lightning impulse withstand voltage (Up) across open switching device and isolating distance

860 kV peak

Rated 1 min power frequency withstand voltage (Ud) across open switching device and isolating distance

375 kV r.m.s

9.12.4. Rated frequency

50 Hz


2000 A

9.12.6. Rated short time withstands current- 1 sec

50 kA


9.12.8. First-pole-to-clear factor 1.3

9.12.9. Rated making current 125 kA

9.12.10. Rated line charge breaking current 63 A

9.12.11. Rated cable charge breaking current 160 A

9.12.12. Rated operating sequence 0-0,3 s-CO- 1

min -CO

9.12.13. Rated duration of short circuit 1 sec

9.12.14. Rated breaking time less than 50 msec

9.12.15. Maximum admissible over voltage for small inductive currents interruption

2.5 p.u.

9.12.16. Operation time diversion between breaker poles or/and tripping shall not exceed:

9.12.17. Open

9.12.18. Close

3.3 msec 5 msec

9.12.19. Sound pressure level shall be measured acc. to ANSI C37082-82 or IEC 61672 or DIN 45635 parts 1+12

20

9.12.20. The monitoring system shall have the following levels:

Loss of SF6

General lock-out

9.12.21. Relay contacts shall be for 250 VDC

Circuit breaker drive

9.12.22. For all bays single pole

operation

9.12.23. Drive power supply 220 VDC

9.12.24. Control circuit 220 VDC

9.12.25. Heating elements power supply 230 VAC

9.12.26. Available auxiliary contacts 12NO-12NC

9.12.27. Number of independent trip coil per phase 2

9.12.28. Number of independent close coil 1

9.13. General requirements for GIS combined disconnector/earthing switch




Dry lightning Impulse withstand voltage -1.2/50μs wave (kV peak)

750


325

9.13.4. Lightning impulse withstand voltage (Up) across open switching device and isolating distance

860 kV peak

9.13.5. Rated 1 min power frequency withstand voltage (Ud) across open switching device and isolating distance

375 kV r.m.s


2000 A

9.13.7. Rated short time withstands current- 1 sec 50 kA

21


9.13.9. Rated duration of short circuit 1 sec

9.13.10. Rated bus charging current switching capability of disconnectors acc. to IEC 62271-102/2013 Annex.F

9.13.11. Number of auxiliary contacts 21NO-21NC

9.13.12. Earthing switch Q8 (see one-line diagram on page 25) shall be of high speed type

9.13.13. Rated short circuit making current of high speed ES

125 kA peak

9.13.14. Classification of high speed ES for mechanical endurance

M1 (2000 CO)

9.13.15. Classification of high speed ES for electrical endurance

E1

9.13.16. Rated induced current switching capability for high speed ES acc. to IEC 62271-102/2013 Annex. C

Class B

9.13.17. Earthing switch Q51 (see one-line diagram on page 25) shall be of low speed type

9.13.18. Classification of disconnectors combined with low speed ES for mechanical endurance

M2 (10000 CO)

9.13.19. Rated induced current switching capability for low speed ES acc. to IEC 62271-102/2013 Annex. C

Class A

Disconnector/earthing switch drive

9.13.20. Type: electrically and manually operated

9.13.21. Drive power supply 220 VDC

9.13.22. Control circuit power supply 220 VDC

9.13.23. Heating elements power supply 230 VAC

9.14. General requirements for current transformers

9.14.1. Type: ring

9.14.2. Rated overcurrent factor 1.2

22

9.14.3. CT's maximum permissible density current taking into consideration the rated short-time thermal current 50 kA/1 sec and maximum winding temperature 200°C foraluminum or 250°C for copper (indicate also primary and secondary material and cross section)

9.14.4. Rated power frequency voltage withstand for CT's secondary windings and between sections

3 kV r.m.s

9.14.5. Rated withstand voltage for inter-turn insulation 4.5 kV peak

9.14.6. The over voltage transmitted from the primary to secondary terminals for impulse type B acc. to IEC 61869-1/2007 table 9 shall not exceed

1.6 kV peak

CT for transformer bays

9.14.7. Number of cores (3 protection, 1 metering, 1 measurement)

5

9.14.8. Rated primary current 200-400

A

9.14.9. Rated continuous thermal currents (all cores) 1.2xI1

240-480 A

9.14.10. Rated secondary current 5 A

9.14.11. Protection cores:

Class and accuracy limit factor 5P30

Nominal rating capacity 30VA

9.14.12. Measurement core:

Class 0.5


Instrument security factor 5

9.14.13. Metering core:

Class 0.2S



9.14.14. CT for line and coupler bays

23

Number of cores (3 protection and 1 measurement)

4

Rated primary current 1000-

2000 A

Rated continuous thermal currents (all cores) 1.2xI1 1200-

2400 A

Rated secondary current 5A

9.14.15. Protection cores:

Class and accuracy limit factor 5P30

Nominal rating capacity 30-60VA

9.14.16. Measurement core:

Class 0.5



9.14.17. Extended current rating 120%

9.15. General requirement for interlocking

9.15.1. All the interlocking shall be in accordance to the relevant IEC standard in order to allow the operations in fully safety conditions for the operators.

9.15.2. Module component interlocks shall include as minimum the following:

9.15.3. Circuit breaker (CB): the remote operation of the CB of the module is always possible when the disconnector is closed or open. The CB operations are possible only if the pole gas pressure is higher than the threshold block.

9.15.4. Disconnector/Earthing switch: The disconnectors operation is possible only when the CB is open. Interlocking device shall be electromagnetic. Earthing switch operation is same as for disconnector switch due the three position construction.

9.16. General requirements for interfacing:

Each bay/module shall be supplied with a unique outdoor local control cabinet, fully pre-fabricated, pre-wired and pre-tested. This cabinet shall be used also for interface between the multifunctional module and the control & protection system of the whole substation. Metering circuits shall be wired to separate enclosures with provisions for mounting lockers per Israeli electric corporation requirements. Degree of protection of enclosures: IP55

24

All interconnections between components (cables& wires) shall be done in scope of this work, and shall be ready for connection to remote panels and protection system in the electrical room. Physical and responsibility separation (fence by others) is required between the line + coupler bays and the transformer bays, therefore all cabinets and enclosures shall be separate to provide this separation (physical, operational maintenance and troubleshooting).

9.17. General requirements for grounding connections:

All metal parts (not live) shall be bonded and grounded. Each common structure of a module shall be provided with (at least) two grounding terminals adequate for connecting copper cable of

– size. All grounding and bonding of electrical components, equipment and structures are also in this Scope. Specific care shall be taken for the mobile part of the module only connections of common grounding points of the bays to the overall switchyard grounding system is in scope of others. Supplier shall provide detailed drawing of grounding points, wires and connections for his Scope.

9.18. HS life expectancy

The HS shall be designed for thirty (30) years of continuous service, under the conditions stated in IEC 62271.

9.19. The HS 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

26

10. FUNCTIONAL REQUIREMENTS

The Hybrid Switchgear shall conform to all requirements of this specification, but is not limited to them. Compliance by Supplier with this specification does not relieve him of his responsibility to supply equipment of proper design, suitable for the intended use equipment.

10.1. Breaking Capacity

10.1.1. The circuit breakers shall be restrike free during capacitive current breaking duty as specified in IEC 62271 – 100 clause 4. 107 (Class C2)

10.1.2. The circuit breakers shall have a normal mechanical endurance capability according to IEC 62271- 100 clause 3.4.117 (Class M2).

10.1.3. The circuit breakers shall be designed for normal electrical endurance test according to IEC 62271 - 100 clause 3.4.112 (Class E1).

10.2. Terminals

10.2.1. H.V. terminals 10.2.1..1. Flat aluminum terminals shall be provided. 10.2.1..2. Surface contact of primary terminals (mm2) according to supplier

drawing No._______________. 10.2.2. Earthing terminals

10.2.2..1. Each module shall be equipped whit two copper terminals for earthing. 10.2.2..2. The earthing terminals shall be marked with appropriate graphical

symbol. 10.2.2..3. The earthing terminals shall be designed to withstand for 1 sec a

short-time current 50 KA. 10.2.2..4. Earthing terminal contact surface (mm2) according to supplier drawing

No____________. 10.3. Insulators

10.3.1. Outdoor heavy duty, epoxy impregnated fiberglass with silicone rubber sheds insulator (porcelain insulator is acceptable as well), suitable for the climatic, environmental and atmospheric conditions as described under clause 8, shall be provided.

10.3.2. The insulator shall be of the alternate sheds or normal sheds type permitting easy access and cleaning to all surfaces.

10.3.3. Please enclose drawings with all dimensions required. 10.3.4. Color of porcelain (in case porcelain insulator is offered) – Grey

27

DESCRIPTION OFFERED

10.3.5. Manufacturer

10.3.6. Minimum external creepage distance phase to ground not less then

5270 mm

10.3.7. Arcing distance not less then 1500 mm

10.4. SF6 Gas

DESCRIPTION OFFERED

10.4.1. Manufacturer

10.4.2. Amount per fully assembled module (kg)

10.4.3. Amount on fully assembled CB (kg)

10.4.4. Normal operating pressure at (Pa)

10.4.5. Minimum permissible pressure at for mechanical operation of CB at rated current (Pa)

10.4.6. Indicate if draining of breaker is required on periodical inspections

10.4.7. Rated density of SF6 gas at (g/l)

10.5. Accessories and Fittings

10.5.1. The circuit breaker shall be shipped with a complete set of necessary accessories for operation including:

10.5.1..1. 1 position indicators per phase 10.5.1..2. 1 operation counter per phase 10.5.1..3. Pressure gauges for each gas compartment 10.5.1..4. The indications of the devices shall be easily readable from ground

level when the circuit breaker is installed on its supporting structure. 10.5.1..5. SF6-circuit breaker shall be provided with gas density monitor for each

gas compartment and an alarm shall be initiated if the density of the SF6 falls below that required to guarantee interrupting capability.

10.5.1..6. Indicate whether CB breaking chamber is provided with a valve against SF6 gas overpressure and give details and operating values.

10.5.1..7. Facilities shall be provided to enable travel and timing measurements to be carried out after the CB has been filled with SF6 gas.

10.6. Operating Mechanism

10.6.1. Indicate type of the operating mechanism (spring, electro-mechanical etc.). The spring mechanism shall possess separate sets of springs for the

28

closing and opening operation. The spring mechanism when wound shall permit successive opening-closing and repeat opening of circuit breaker without the need for operation of the spring mechanism winding motor.

10.6.2. The operating mechanism shall be independent of any compressed air or oil network and shall perform its duty whether or not connected to such a network.

10.6.3. The circuit breaker mechanism shall be designed to absorb any shock incident to the operation of the breaker with minimum resultant disturbance, jar and noise.

10.6.4. Steps to prevent undesirable operation due to stresses, vibrations etc. shall be provided in the design.

10.6.5. Operating mechanism shall be designed for successful local and remote electrical and local manual control.

10.6.6. The manual tripping device shall be protected against accidental operation.

10.6.7. A local/remote switch shall be mounted on control cubicle. The switch shall interrupt all circuits, including those of the trip coil for control purposes, but shall not interrupt the circuits to the second trip coil used for protection purposes only.

10.6.8. In control cubicle an electrical position indicating device shall be provided for CB position with the following function

10.6.9. Position 1 – CB closed 10.6.10. Position 2 – CB open 10.6.11. Position 3 – no voltage 10.6.12. A mechanical position indicating device shall be provided on operating

mechanism of the CB. 10.6.13. The operation mechanism with its control relays shall afford the

equivalent of trip-free. 10.6.14. Control relays supplied with the circuit breakers shall be heavy-duty,

plug-in-type, with dust tight covers. Where practical, they shall be arranged to break both polarities of the control circuit.

10.6.15. In case the stored energy is not sufficient for the completion of a closing (tripping) operation, the operation mechanism shall be blocked and an alarm shall be given. A closing operation already started shall be carried out to the end.

10.6.16. Automatic recharging of the closing mechanism shall be provided for renewed operation immediately after completion of a closing operation.

10.6.17. Forces (closing/opening) transmitted to foundation: 10.6.18. Upward force (kN) 10.6.19. Downward force (kN) 10.6.20. Please indicate and describe recommended methods to absorb

shocks transmitted to foundation. 10.6.21. Motor drive mechanism, auxiliary switches, auxiliary contactors and

other auxiliary equipment shall be accommodated in vermin proof and weather proof cubicles. The cubicles shall be provided with ventilation openings with fine mesh wire nets or similar.

10.6.22. The operating mechanism shall be capable of closing and opening the circuit breaker for any value of supply voltage between 85% and 110% of the rated value The opening coil shall operate correctly at 70% to 110% of rated supply voltage.

29

10.6.23. Power supply voltage – 220 VDC 10.6.24. Control circuit 10.6.25. Alarm circuit

DESCRIPTION OFFERED

10.6.26. Number of closing coils per breaker

10.6.27. Maximum power rating per closing coil at (W)

10.6.28. Current required by closing circuit at (A)

10.6.29. Number of tripping coils per breaker

10.6.30. Maximum power rating per tripping coil at (W)

10.6.31. Total maximum tripping current by tripping circuits energized (A)

10.6.32. The supply circuits for motors (compressor motor and dryer or pump motor etc .) shall be connected by means of socket and plug in control cubicle

10.6.33. Spring Mechanism

10.6.33..1. Motor reset and hand reset

10.6.33..2. Motor voltage 220 VDC

10.6.33..3. Rated motor power (W)

10.6.33..4. Starting motor current (A)

10.6.33..5. Steady motor current (A)

10.6.33..6. Total running time required for spring loading

10.6.33..7. After 1 ON operation (sec) 10.6.33..8. After 1 OFF operation (sec)

10.6.33..9. Spring mechanism shall be provided with electrical and mechanical interlocks against undesired operation resulting from a mechanical fault.

10.6.33..10. For hand reset, the direction of motion of the handle shall be marked

10.7. Auxiliary switches

10.7.1. Auxiliary switches shall be supplied with each operating mechanism to indicate positively whether the breaker is open or closed.

10.7.2. The number of normally open (NO) and normally closed (NC) contacts per mechanism, for customer's use (12NO + 12NC).

10.7.3. Multiplication of auxiliary contacts by means of auxiliary contactors

30

mounted in control cubicle is not acceptable. 10.7.4. Electrically independent auxiliary switches readily convertible from

normally closed (NC) to normally open (NO) or vice-versa to operate as breaker is opened or closed for service will be preferred.

10.7.5. Auxiliary switches shall be easily accessible for connection, inspection and adjustment.

10.7.6. Auxiliary switches shall be clearly and durably marked. 10.7.7. Rated and making current for auxiliary switches shall be continuously

at least 10.7.8. Breaking current for 220V D.C with a current time constant of at least

shall be at least 2A (ADC).

10.8. Wiring

10.8.1. All wiring for auxiliary equipment and operating devices for connection to Purchaser's cables shall be terminated at terminal blocks.

10.8.2. Type of terminals shall be as follows:

DESCRIPTION OFFERED

10.8.2..1. Current circuits (16 mm2, 500V) Phoenix UGSK/s

10.8.2..2. Voltage circuits (16 mm2, 500V) Phoenix URTK/s

10.8.2..3. Control and alarm circuits (10 mm2, 750V) Phoenix UK 6N

10.8.2..4. Remote signal and alarm circuits (1.5-4 mm2, 750V)

Phoenix SSK 0525-T

10.8.3. All terminals shall be made from ceramic or duroplast P150 according to :

DIN 7708 or equivalent

10.8.4. The terminals shall be of disconnect type with facility for plug connection on both sides

10.8.5. The blocks shall be spaced to allow ample clearance on all sides

10.8.6. Wiring shall be carried out with flexible conductors with preferred cross-section:

10.8.6..1. Control and alarm circuits with current lower then 0.5

1.5 mm2

10.8.6..2. Control and alarm circuits with current higher then 0.5

2.5 mm2

10.8.6..3. CT secondary circuits 6 mm2

10.8.6..4. VT secondary circuits 4 mm2

10.8.7. The wires shall be with PVC insulation, type NYAF to 1000 volts rated voltage

10.8.8. Each terminal block shall be provided with

spare terminals

31

10.8.9. All wiring insulation and terminal blocks shall be flameproof protected

10.8.10. All terminals shall be of single deck type

10.9. Heaters

DESCRIPTION OFFERED

10.9.1. Heaters with thermostat shall be provided for preventing condensation

10.9.2. Heaters circuit shall be provided with an auxiliary relay monitoring power supply to the heater and resistance of same

10.9.3. Heaters supply voltage 230 VAC

10.10. Disconnector

10.10.1. Main contacts 10.10.1..1. The contacts shall be of the high pressure type and shall open

and close with sufficient positive action to remove any film or oxide while avoiding galling the surface of the contacts.

10.10.1..2. The disconnectors shall take into account that higher voltages than rated may appear between their contacts during synchronization.

10.10.1..3. The contact system shall be provided with adjusting facilities for current path length by means of which an excessive pull on terminal can be compensated.

DESCRIPTION OFFERED

10.10.1..4. Contact making capacity for inductive currents (A)

10.10.1..5. Contact breaking capacity for inductive currents (A)

10.10.1..6. Contact making capacity for capacitive currents (A)

10.10.1..7. Contact breaking capacity for capacitive currents (A)

10.10.1..8. All contact surfaces shall be silver plated

10.10.1..9. Manufacturer to specify thickness of silver plating in microns

10.10.2. Motor operating system

10.10.2..1. The design shall ensure that a minimum of energy is required

for operation and that one man without undue effort shall be capable of manually operating the isolator and earthing operating the isolator and earthing.

32

10.10.2..2. Hand grip for operating mechanism shall be insulated. 10.10.2..3. Each operating mechanism shall be complete with all

necessary shafts, cranks, links, bearings and fittings required for operation. 10.10.2..4. Operating of earthing switches shall be possible from the local

operating box. 10.10.2..5. The local operating box shall contain at least the following

equipment:

Position 1 : Remote control only

Position 2 : Electrical local control only

10.10.2..6. The local position shall have an alarm contact. 10.10.2..7. Two Push-buttons for operations:

one "ON" with 3NO and 1NC contacts

one "OFF" with 3NO and 1NC contacts

DESCRIPTION OFFERED

10.10.2..8. Type of disconnector operating mechanism

10.10.2..9. Type of earthing switch operation mechanism

10.10.2..10. Torque requires at the operating shaft for emergency operation (Nm)

10.10.3. The boxes shall be metallic, watertight, IP55 suitable for outdoor

installation. 10.10.4. The boxes shall be provided with ventilation openings with fine mesh

wire nets or similar. 10.10.5. The boxes shall be designed for cable entry from below with the

bottom side provided with a bolted and gasketted metallic plate with glands. 10.10.6. The access to all actuation devices shall be under a pad-lockable

cover. 10.10.7. In case of loss of auxiliary D.C. voltage for blocking purposes, the

manual operation of the isolator shall be blocked. 10.10.8. Motor drive mechanism, auxiliary switches, auxiliary contactors and

other auxiliary equipment shall be accommodated in a vermin proof and water proof cubicle.

DESCRIPTION OFFERED

10.10.9. Ratings of motor drive

10.10.10. Rated power (W)

10.10.10..1. Control voltage for closing, tripping and auxiliary relays

220 VDC

10.10.10..2. Rated current of motor drive (A)

10.10.10..3. Total running time (sec)

33

10.10.11. The motor drive shall be protected with a thermal-magnetic type overload protection device and with an open-phase protection, not included in the motor.

10.10.12. In control cubicle the position indicating devices shall be provided for isolator and earthing switch with the following functions:

10.10.12..1. Position 1 – closed 10.10.12..2. Position 2 – open 10.10.12..3. Position 3 - no voltage

10.10.13. Mechanical position indicating device shall also be provided on the operating mechanisms.

10.10.14. The operating device shall be capable of closing and opening the isolator or earthing switch for any value of supply voltage between 85% and 110% of the rated value.

10.10.15. A shunt closing release shall operate correctly between 85% and 110% of the rated supply voltage of the closing device.

10.10.16. A shunt opening release shall operate correctly between 70% and 110% of the rated supply voltage of the opening device.

10.10.17. Heater shall be provided in cubicle to prevent condensation. 10.10.18. The heaters shall be provided with thermostats.

DESCRIPTION OFFERED

10.10.19. Number of heaters for each operating mechanism

10.10.20. Rating of each heater

10.10.20..1. Rated voltage 230 VAC

10.10.20..2. Rated power (W)

10.10.21. Total power required by all heaters (W)

10.10.22. A.C. Power supply to heater shall be provided with breaker with one

N.C. alarm contact. 10.10.23. The heating of the motor drive shall be provided with an electric cable

connection to the outside of the crate of each isolator. 10.10.24. DC and AC monitoring relays shall be installed providing monitoring of

AC power supply to the heater and DC supply to the motor The relays aux. switches (1.N.O +1N.C.) shall be wired to terminals.

10.10.25. Disconnector Auxiliary Switches 10.10.26. Auxiliary switches shall be supplied with and directly operated by each

operating mechanism to indicate positively whether each pole is open or closed.

10.10.27. The number of normally open (NO) and normally closed (NC) contacts per mechanism, for customer's use shall not be less than 12 NO+12 NC.

10.10.28. These contacts shall be wired to terminals in control cubicle.

34

10.10.29. Multiplication of not more than 4NO+4NC contacts from the contacts for customer's use is acceptable but only by monitored latching relay with two stable positions mounted in control cubicle.

10.10.30. At least 2/3 of auxiliary switches shall electrically independent readily convertible from normally closed (NC) to normally open (NO) or vise-versa for 250V DC.

10.10.31. Auxiliary switches shall be easily accessible for connection, inspection and adjustment.

10.10.32. In addition 1 intermediate travel contact shall be supplied. 10.10.33. Each disconnector auxiliary switch shall be also equipped with a NO

and a NC contact with the following switching sequence: 10.10.33..1. When the disconnector is being closed the NC contact should

be open and the NO contact closed before the disconnector reaches its flashover gap.

The NO contact shall close a minimum of before the disconnector main contact can start to carry current.

10.10.33..2. When the disconnector being opened the NC contact should not close or the NO contact open before the disconnector contact gap has exceeded its flashover gap (before full insulation is secured).

10.10.33..3. The NC contact shall open before the NO contact closes. 10.10.34. Rated and making current for auxiliary switches shall be continuously

at least 10A 250V D.C. 10.10.35. Auxiliary switches shall be easily accessible for connection, inspection

and adjustment. 10.10.36. Auxiliary switches shall be clearly and durably marked. 10.10.37. Signaling of "open" and "closed" position shall be according to: IBC

62271- 102. 10.10.38. Wiring

According to subclause 9.8. 10.10.39. Interlocks

10.10.39..1. The mechanical interlock shall be independent of and additional to the electrical interlock.

10.10.39..2. Mechanical interlock with padlock shall not be used. 10.10.39..3. The locking positions shall be provided with labels "open" and

"closed" respectively. 10.10.40. Earthing Switches

10.10.40..1. Earthing switch Q8 (see one-line diagram on page 25) shall be of high speed type. Earthing switch Q51 (see one-line diagram on page 25) shall be of low speed type.

10.10.40..2. Contacts type and material (short description) to be provided by Manufacturer.

DESCRIPTION OFFERED

10.10.41. Contact force at each point to be specified by Manufacturer (N)

10.10.42. The contact pressure is achieved by special means magnet (springs) to be described in detail by Manufacturer.

35

10.10.43. Measurement of resistance of the earthing switch contact to be specified by Manufacturer (ohm). The above value of resistance shall ensure the safety of operating people

10.10.44. Opening/closing time of low speed earthing switch (msec/msec)

10.10.45. Opening/closing time of high speed earthing switch (msec/msec)

10.10.46. 10.10.47.

10.11. Dimensions and weights

DESCRIPTION OFFERED

10.12. Net weight of operating mechanism of the module (kg)

10.13. Net weight of the module with all accessories as specified (kg)

10.14. Maximum shipping weight (including assembly and packing) (kg)

10.15. Height of crank(s) of operating mechanisms of the module to ground (mm)

Max. 1600

10.16. Number of attached dimensions drawing

36

11. TESTS & INSPECTIONS

11.1. TESTS – GENERAL

11.1.1. Supplier shall perform Production Tests to check the quality and uniformity of the workmanship and materials used in the manufacture of the HS.

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 Supplier 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. Supplier shall submit a list of all tests to be performed on site, after mounting of the HS and during operation.

11.1.5. The Supplier is required to submit with the tender type tests reports of offered type of the HS performed by a 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 above mentioned type tests.

11.1.6. The equipment must comply with the latest IECo tenders and requirements including type, special, sample, acceptance and routine tests.

11.2. TYPE TESTS:

11.2.1. All type tests for offered type of the equipment shall be performed according to IEC 62271.

11.2.2. Supplier shall submit in two (2) CD and two(2) d.o.k (disk-on-key) the type test reports to Purchaser.

11.3. ROUTINE TESTS:

11.3.1. Supplier shall perform all Routine Tests for each HS according to the provisions of IEC 62271 and submit all relevant test reports.

11.3.2. Supplier 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.

11.4. EQUIPMENT QUALIFICATION TO PROVE SEISMIC WITHSTAND 11.4.1. The offered HS shall be analyzed to prove the seismic design.

The equipment shall be qualified according to IEEE Std 693-2005. Required seismic qualification level Moderate Level.

After performing the analysis the Supplier shall submit the seismic qualification report according to IEEE Std 693-2005.

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12. PACKING & DELIVERY 12.1. Supplier shall package all shipment in such manner as required to

prevent any damage to the equipment during transportation and storage under the climatic and environmental conditions described under clause 8.

12.2. Any components or accessories not included in the main shipment shall be shipped by Air Mail, by Air Express or by Air Freight, at Supplier's expense.

12.3. The HS may be placed into storage, prior to their installation. The storage shall not affect in any way the HS or the integrity of any its components. Taking into account the specific climatic conditions described under clause 8, the Supplier shall furnish any special facilities required for storage and give explicit information for such storage (including maximum permissible storage time) in his instruction book.

12.4. All items should have their lifting, jacking and haulage points. 12.5. The spare parts and special tools shall be packed separately and a

detailed packing list shall be sent. 12.6. All components or accessories shipped dismantled for field assembly

shall be suitably tagged to show its identification. Tags shall be exceptionally durable and security tied to items by wire or other approved methods.

12.7. Supplier shall include a Bill of Materials with a shipment to enable the Purchaser to determine if all disassembled items have been received.

12.8. Supplier shall submit prior to erection a detailed tabulation of all field mounted items with at least the following information: -Supplier's shop order number (if any) -Number of items -Manufacturer and/or Supplier (if other than Supplier) -Type or catalog number, if listed -Short description including service and on what device it is mounted -Shipping date

-Shipping details

12.9. A three direction shock indicator calibrated for 10g acceleration non-resettable type shall be provided in each crate.

12.10. Dimensions of the packing crate (LxWxH m). 12.11. Recommended slings length for packing crate (m). 12.12. Shipping weight of packing crate (ton). 12.13. Shipping volume of packing crate (m³). 12.14. Supplier shall supply 3 (three) months before the shipment of the

equipment 5 (five) sets of the complete Bill of Materials to enable checking and identifying of the equipment upon receipt of the same.

12.15. Each item shall be separately packed and the destination clearly marked.

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12.16. Each packing crate shall have a packing list and in addition shall be marked with following information:

12.16.1. Descriptive name(s) of equipment or supplies contained. 12.16.2. Quantity packed in a crate. 12.16.3. Serial numbers, if any, of the equipment contained. 12.16.4. Contract (order) number. 12.16.5. Supplier's name and address (city, state, and country). 12.16.6. Gross weight of container. 12.16.7. Complete destination marking. 12.16.8. Indication in which position (horizontal or vertical) the

equipment. 12.16.9. Indication in which position (horizontal or vertical) the

equipment has to be transported.

13. NAME PLATE The HS shall be supplied with standard nameplates, in accordance with IEC-62271 Bushings, electrical motors and relays shall also have nameplates, according to relevant standards. Name plates shall be provided in English language.

161/11.5 kV Ein-Karem Substation 161/11.5 kV Kisalon Substation … · 2018-02-11 · Karem...

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