RFQ-E-003 33,11kV Substation rA

8/12/2019 RFQ-E-003 33,11kV Substation rA

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MINISTRY OF ENERGY(ELECTRICITY & WATER)

5.1.1.1.1

FOR QUOTATION



Shuaiba north co-generation (power & distillation) Plant, Kuwait Technical Specification for 33/11kV Substation Rev. A

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CONTENTS

1 GENERAL ..................................................................................................................................................................1

2 SCOPE OF SUPPLY ................................................................................................................................................1

2.1 Scope of Supply by Supplier

2.2 Scope of Supply by Purchaser

3 CODE AND STANDARDS.......................................................................................................................................4

4 DESIGN AND OPERATING CONDITIONS ..........................................................................................................4

4.1 Site Conditions

4.2 Design Conditions

5 TECHNICAL REQUIREMENTS..............................................................................................................................5

5.1 General

5.2 Details of Equipment

6 DRAWINGS & DOCUMENTS REQUIREMENTS ..............................................................................................49

6.1 Data and Information to be submitted with Proposal

6.2 List of Data and Information to be Submitted:

6.3 Data and Information to be Submitted after Awards

ATTACHMENTS

1. General Technical Requirement

1) General Technical Requirement for General2) General Technical Requirement for Mechanical3) General Technical Requirement for Electrical4) General Technical Requirement for Instrument and Control

2. Bid Forms

3. Technical Schedule

4. Reference drawings

1) Site Location Plan2) Plant General Arrangement3) Key single line diagram4) Existing 33kV SLD (for reference)5) Existing 11kV SLD (for reference)6) Existing 33/11kV building arrangement plane - 9 sheets (for reference)

5. Vendor Document Requirements (VDR)




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1 GENERAL

This specification, together with the associated data sheets and requisitions, covers thedesign, manufacture, factory inspection/tests, delivery, supervision for site installation andtest/commissioning and guarantee/warranty for specified equipment with complete

accessories for use in the Shuaiba North Co-generation (Power & Distillation) Plant inKuwait.

It is not the intention of this specification to specify all technical requirements nor to setforth those requirements adequately covered by applicable codes and standards. TheSupplier shall furnish high quality electrical equipments and accessories meeting therequirements of this specification and the relevant standards.

The Supplier shall be responsible for any discrepancies, errors or omissions in thedrawings and information supplied by him. The Owner/Engineer’s approval of drawingsand documents shall not relieve the Supplier from his responsibilities regarding errors oromissions which may exist, even though the Work is executed in accordance with suchapproved drawings. Where such errors or emissions are discovered later, they shall bemade good by the Supplier out of his expenses irrespective the approval status as givenby the Owner/Engineer.

All equipment under this specification shall be manufactured and tested in accordance withthe latest revision of the relevant IEC standards.

All equipment, components, material supplied for the new sub-station shall be unused andof latest proven technology.

All data, specification, drawings and documents shall be written in English. All units ofmeasurements and dimensions shall be in metric system.

2 SCOPE OF SUPPLY

In addition to the Supplier’s scope of supply specified in other sections of this specification,the Supplier shall furnish the services and equipment including all necessary features,components, accessories and appurtenances for the safe, efficient and reliable erection,operation and maintenance whether mentioned in this specification or not. These shallinclude, but not be limited to, the following :

All necessary supervision, labor, tools, materials and equipment required to design, furnishmaterials for fabrication, test, inspection, clean, paint, prepare for shipment and deliver the

equipment complete with appurtenances as specified herein.

2.1 Scope of Supply by Supplier

2.1.1 Main equipments

1) Necessary modification wherever necessary for the 132KV SF6 switchgear (existing)for interconnection

2) Twenty (20) 1500 MVA 33/36 kV indoor switchgear

3) Remote control and relay panels for the above 33 kV switchgear

4) Twenty two (22) panels, 500 MVA 11 kV indoor switchgear

5) Remote control and relay panels for the 11 kV switchgear




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6) Three (3) 45 MVA 132/33 kV Power transformers with ON-LOAD Tap changers

7) Three (3) 15 MVA 33/11.5 kV power transformers with ON-LOAD Tap changers

8) Six (6) Tap-change remote control desks/panels for the above transformers

9) Two (2) 250 KVA 11/0.433 kV cast resin station transformers

10) Three (3) 39 ohms and three (3) 10.5 ohms neutral earthing resistors and associatedchange-over switches cabinets with current transformers for REF and standby E/Fprotection

11) Low voltage distribution board, diesel box and auxiliary D.C. distribution boards

12) Two (2) 220 volts and one (1) 110 volts batteries and associated charging, controlequipment, change-over switches and D.C. distribution board

13) All necessary control and power services cables for connection in-between all theequipment supplied by supplier i.e. 132 kV, 33 kV, 11 kV switchgears and theirassociated relay and control boards, A.C & D.C. boards, …etc.

14) All transformer (45 MVA, 15 MVA and 250 kVA) power cables connecting the abovetransformers to their respective switchgear supplied by supplier (132 kV, 33 kV cables,11 kV cables and 1000 volts cables).

15) Sub-station special and auxiliary and sundry equipment

16) Control room temperature monitoring device

17) Pilot cable marshalling cabinets (33 kV & 11 kV)

18) Telemetry equipment and transfer terminal block cabinets for 33 kV & 11 kV cables

19) Feeder differential protective relays type Solker “RF” (5 kV insulation) M/S. Reyrolleare discontinuing manufacture of cable differential relay type Solkor “R” both 5 kV and15 kV and instead producing new version of cable differential relay called Solkor “RF”

for both 5 kV and 15 kV insulation. It is therefore, required to provide Solkor “RF”relays instead of Solker “R”.

For 33 kV and 11 kV feeder circuits the existing Solkor “R” 5 kV relays can be usedwith the new type Solker “RF”, by means of changing four links in front of the Solker“RF” (5 kV relay) to switch to “R” model and these changes shall be carried out by theSupplier of this quotation without any extra cost.

2.1.2 Accessories, appurtenances, spare parts, special tools (if required), and consumable foreach equipment specified in 2.1.1 above.

1) Design, manufacturing, factory test/inspection, packing and delivery of all equipment

including necessary accessories and appurtenances

2) Furnishing all data, information, drawings and documents including instructionmanuals for installation, Site tests/commissioning, operation and maintenance

3) All necessary supervision for site erection, site test and commissioning, initialoperation and maintenance, guarantee and warrantee of all equipment supplied bySupplier (Optional breakdown price shall be submitted)

4) All necessary installation material including foundation bolts, nuts, washers, etc.

5) All necessary installation materials including steel frame embedded in floor, cubiclefoundation expansion anchor bolts, nuts and washers, etc. for all the equipmentsupplied by supplier i.e. 132 kV, 33 kV, 11 kV switchgears and their associated relayand control boards, A.C & D.C. boards, …etc

6) Grounding terminals and lugs for connection between all the equipment supplied bysupplier and grounding main mesh conductor






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8) External cable supply and connections for remote interfaces and Customer use

9) All cable raceways

10) Substation fire fighting & alarm system including water fire fighting system fortransformers

11) Lighting and socket outlet system, and building wiring installation, inside and outsidethe substation building

12) Air-conditioning associated with the substation building

13) AC & DC auxiliary powers for Purchaser’s consumers (e.g. lighting, socket outlet, firefighting & alarm system, HVAC system, etc) that shall be powered from Supplier’s LowVoltage distribution board and/or D.C. system.

3 CODE AND STANDARDS

The equipment and materials as well as design and labor employed in the fabrication,delivery, erection or installation and testing of the parts of the project shall comply with thelatest editions of the IEC Recommendations and approved standards and recommendation.For further details, refer to Attachment 1-1) : General Technical Requirement – General.

4 DESIGN AND OPERATING CONDITIONS

4.1 Site Conditions

Refer to Attachment 1-1) : General Technical Requirement – General.

4.2 Design Conditions

The plant equipment shall be designed base on the design conditions below:

Parameter Unit ValueDesign ambient temperature, outdoor 55

Design ambient temperature, indoor 50

Design metal temperature under the sun(radiation) 84

Ambient Relative Humidity % 5 ~95Barometric pressure mbar 1,012Wind velocity m/sec 45Seismic Condition UBC1997, Zone 1

(Note : occupationimportance factor 1.5shall be considered)

For further details, refer to Attachment 1-1) : General Technical Requirement – General




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5 TECHNICAL REQUIREMENTS

5.1 General

In general, specification of the supplied equipment shall follow relevant IEC standard or

equivalent and various clauses of the tender documents as applicable.

A regard electrical specification of the supplied switchgear, transformers cables…etc.,attached GTR-E (General Technical Requirement for Electrical) will be followed asapplicable.

Factory and site tests of electrical equipment shall follow tender specification, as applicable.

All equipment, components, material supplied for the new sub-station shall be unused andof latest proven technology.

Number of feeders, transformers etc., busbar ratings, transformer rating, feeder ratings,couplers & sectionalizers ratings, protection monitoring, metering, synchronizing andcontrol facilities, interlocking as well as the work associated with Telemetry to associatedDCC/NCC of MoE as per the existing practice of sub-station shall be exactly the same forall voltage levels.

New sub-station layout, arrangement and dimensions of various auxiliary rooms, trenches,HVAC, lighting and communication facilities, fire fighting, fire alarms etc., and all other civilrequirement shall be similar to existing sub-station.

New sub-station shall have identical DC & UPS system etc., as available in existing sub-station.

5.2 Details of Equipment

5.2.1 33 kV Switchgear

Twenty (20) panels duplicate bus bar, 33 kV, 1500 MVA switchboard and comprising panelsreading from left to right when viewed from the front as follows:

Panels Nos : 1, 2, 3, 6, 12, 13, 14,17, 18 & 19 & 20 : 33 kV feeder control.

Panel Nos. : 5, 11 and 16 : 45 MVA transformer control

Panel Nos. 4, 7 & 15 : 15 MVA transformer control

Panel No. 8 : Bus-coupler control

Panel Nos. 9 & 10 : Bus-section control

Bus bar rating : 1600 Amps per phase in Kuwait’sworst temperature conditions.

5.2.1.1 33 kV Switchgear feeder control

Purpose : Feeder control

Panel Nos. : 1, 2, 3, 6, 12, 13, 14, 17, 18, 19 & 20




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Breaking Capacity : 1500 MVA at 33 kV

Normal Kuwait current rating : 600 amps

Bus bars Kuwait current rating : 1600 Amps.

Operation : Remote controlled automatic motorcharges spring close.

Trip Coil : D.C. shunt trip

Spring release coil : D.C. Supply

Current Transformers:

a. Solker(RF) protection current transformer ratio 500/1 Amps accuracy class X.

b. Directional over-current and earth leakage protection.

Current transformers ratio 500/5 or 500/1 amps. Class SP10 accuracy.

Voltage Transformers:

3 - Phase voltage transformers class “1’ ratio

33000 / 110 / 110 voltsV3 V3 V3

Local Control : Emergency ‘Trip” button suitably shrouded or recessed

Indication a) Auto-trip lamp with cancellation push button.

b) Closed state and open state indication.

c) Spring charge state and uncharged state indication.

d) ON=OFF lamp indication - using glass lenses or L.E.D.(light emitting diodes) coloured Red and GREEN. 240 volt.AC.

Cable Box : Cable end sealing box with brass wiping glands, sheathingearthing clamps and bonding strips, to received three 400 .sq.mm single core 33 kV solid type P.I.L.C. & S Cablescomplete with cable lugs, insulating compound, etc

Labels 1) One circuit label of adequate di-mensions in metal framelocated on a prominent position when viewed from thefront.

2) One small label fixed at the rear of the panel.

5.2.1.2 33 kV Switchgear 45 MVA transformer controls

Purpose : 45 MVA transformer control

Panel No. : 5, 11 &16

Breaking capacity : 1500 MVA at 33 kV




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Normal Kuwait current rating : 1000 Amps

Bus Bar Kuwait current rating : 1600 Amps

Operation : Remote controlled automatic motor

charged spring close

Trip Coil : D.C. Shunt Trip


Current Transformers:

a. Current transformers class 5P20 for transformer differential protection ratio to suitC.T.’s on 132 KV side and shall match the characteristics of the current transformerson the 132 KV side.

b. Current transformers class 5P20 for restricted earth leakage protection ratio 800/1

Amps.c. Current transformers class (1) ratio 800/1 or 5 Amps for instruments and metering.

Voltage Transformers:

3-Phase voltage transformer class 1 ratio.

33000 / 110 volts for tap-changer.V3 V3

Local Control : Emergency ‘Trip” button, suitably shrouded or recessed



c) Spring charge state and uncharged state indication.

d) ON=OFF lamp indication - using glass lenses or L.E.D.(light emitting diodes) coloured Red and GREEN. 240 volt.AC.

Cable Box : Cable end sealing box with brass wiping glands sheathingearthing clamps and bonding strips to receive six 500sq.mm. single core 33 KV solid type PILC & S or XLPECables (two per phase) complete with cable lugs insulatingcompound, etc...

Labels 1) One circuit label of adequate dimensions located in aprominent position when viewed from the front.

2) One smaller label fixed at the rear of the panel.

5.2.1.3 33KV Switchgear 15 MVA Transformer control

Purpose : 15 MVA Transformer control

Panel No. : 4,7 & 15




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Operation : Remote controlled automatic motorcharged spring close

Trip Coil : D.C. Shunt Trip


Current Transformer:

a) Current transformer for transformer differential protection ratio 300/1 or 5 Amps. andshall match with the characteristics of the current transformer on the 11 KV sideAccuracy class of CT to be 5P20.

b) Current transformer for the over current and earth leakage protection andinstruments ratio400/1 or 5 Amps. and class 10P10

Local Control : Emergency trip Button, suitably shrouded or recessed.



c) Spring charged state and uncharged state indication.

d) ON/OFF lamp indicated using glass lenses or L.E.D. (lightemitting diodes) colored “Red” and “Green”. 240 volt. A.C.

Cable Box : Cable end sealing box with brass wiping glands, sheathingearthing clamps and bonding strips to receive three 240sq.mm single core solid type PILC or XLPE cablecomplete with cable lugs, insulating compounds, etc...

Labels i) One circuit label of adequate dimensions located in aprominent position, when viewed from the front.

ii) One small label at the rear of panel.

5.2.1.4 33 KV Switchgear Bus Bar Coupler Control

Purpose : Bus Bar coupler control

Panel No. : 8







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Trip Coil : D.C. Shunt trip

Spring release coil : D.C supply


a) Current transformers for over current and earth leakage protection and metering shallhave a ratio of 1600/1 or 5 amps.

Local Control : Emergency “trip” button suitable shrouded or recessed.

Indication a) Auto-trip indication lamp with cancellation button.

b) Closed state and opened state indication.

c) Charged state and unchanged state indication.

d) ON-OFF lamp indication using glass lenses or L.E.D. (lightemitting diods) coloured “Red” and “Green” 240 volt A. C.

Cable Box : NIL



5.2.1.5 33 KV switchgear busbar section control

Purpose : Bus Bar section control

Panel No. : 9 & 10





Trip Coil : D.C. Shunt trip

Spring release coil : D.C supply


a) Current transformers for over current and earth leakage protection and metering shall

have a ratio of 1600/1 or 5 amps.

Local Control : Emergency “trip” button suitable shrouded or recessed.




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Indication a) Auto-trip indication lamp with cancellation button.

b) Closed state and opened state indication.

c) Charged state and unchanged state indication.

d) ON-OFF lamp indication using glass lenses or LED (lightemitting diodes) coloured “Red” and “Green” 240 volt A.C

Cable Box : NIL



5.2.1.6 Pressure Switches

One Set. Pressure switches for protection against internal arc faults. These switchesshall be provided for each compartment in each switchgear panel andwired to trip 33 KV circuit breakers as described in Vol. 1 of thisspecification. Separate alarm for each panel shall be provided on the 33KV control board and through separate auxiliary clean contacts a groupalarm shall be arranged for signalling the alarm to the control centre.

NB: If 33 KV or 11 KV SF6 gas insulated switchgear is offered, busbar zone protectioncomplete with all the required current transformers to be used as alternative to thepressure switches the metal clad type.




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5.2.2 Remote Control and Relay Panels for 33 kV Switchgear

5.2.2.1 Remote Control & Relay Panels for feeder circuits

Purpose : Feeder remote control.

Panel Nos. : 1, 2, 3, 6, 12, 13, 14,17, 18, 19 & 20

Operation : a) Control switch “Trip” -‘Close” D.C. supply.

b) Supervisory/local control selector switch.

Indication a) Mimic diagram coloured red with semaphore positionindication (normally de-energized D.C. Supply).

b) One healthy trip indication lamp with resistance andtest push button.

c) One auto trip flag indication.

d) Three voltage failure indication lamps, or LEDC lightemitting diodes coloured Red - Yellow-Blue

e) Cable low oil pressure alarm/trip with flag indicationsand clean contacts for remote supervisory alarm.

f) Pressure switches operated alarm with flagindication.

g) SF6 gas low pressure alarm/trip flag indication - ifapplicable.

Instruments : a) One voltmeter, flush mounting type scaled for 12 -35 kV with selector switch.

b) One Ammeter.

Relays : One directional over current and directional earth leakageprotection relay

: One cable feeder differential protection relay (Solker RF) 5

kV insulation.

Labels : a) One circuit label located on a prominent position atthe front of the control board.

b) One smaller circuit label located at the door.

Small Wiring : The cubicle shall be complete with all small wiring, m.c.b’sterminal blocks, cable glands, etc....

Test Switch : a) One test switch (service/test switch) connected in theover current and earth leakage protection circuits.




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b) One test switch (service test /switch) connected in thecable feeder differential protection circuits, wherewithdraw- able relays are used, testing plugs to beprovided.

Remote Supervisory & Control:

: a) Auxiliary relay for” remote supervisory” Tripping of thecircuit breaker with separate set of contacts tointerrupt the auto-trip indication and alarm circuits.

b) Auxiliary relay for” remote supervisory” closing of thecircuit breaker with separate sets of contacts as maybe necessary.

c) Status indication (circuit breaker - “Open” - “Close” -“Withdrawn” - Selector switch” Supervisory” - “Local”).

d) Alarms “Circuit breaker -auto trip - low SF6 gaspressure (if applicable), cable low oil pressure,pressure switches operated, pilot cable fault alarm,and pilot cable supervision auxiliary supply fail alarm.

e) Any other necessary auxiliary relays and/orcontactors.

f) Necessary terminal blocks.

g) Supply, installation and wiring of meters &transducers.

N.B. : All contacts for remote supervisory and control should be clean contact (potential -free) and fleeting with holding time not less than 25 m.sec.

5.2.2.2 Remote Control & Relay Boards - 45 MVA Transformers

Purpose : Remote control of 45 MVA Transformers.

Panel Nos. : 5, 11 and 16

Operation : a) Control switch “Trip and “Close” D.C. supply.

b) Supervisory/local control selector switch

Indication : a) Mimic diagram coloured red with semaphoreindications (normally de-energized), D.C Supply.


c) One auto-trip lamp indication, inter-trip alarm flag

indication (due to 132 KV protection operation)

d) Oil and winding temperature (alarm/trip),tap changer




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(trip), fan motor trouble, low oil level alarm, pressureswitches operating, indication.

e) SF6 gas low pressure alarm/trip with flag indications(if applicable)

Instruments : a) Three ammeters, flush mounting type scaled to suitC.T. Ratio.

b) One voltmeter scaled 12 - 35 KV with selector switch.

c) One Megawatt meter connected to suit C.T.’s andV.T’s ratio.

d) One MVAR meter scaled to suit C.T. and V.T. ratio.

e) One Power factor meter.

Relays : a) One biased differential transformer protection relay.

b) One restricted earth fault relay.

c) Transformer winding temperature alarm/trip relays.

d) Transformers oil temperature alarm/trip relays

e) Buchholz alarm-trip relays main tank.

f) Buchholz trip relay, tap change chamber.

g) Low oil level alarm

h) Inter-trip relays.

i) One stand-by earth fault relay with flag indication.

j) Necessary relays for inter-locking as specified.

N.B. : All relays to have spare contacts for supervisory remote indication.

labels : a) One circuit label located on a prominent position at thefront of the control board.

b) One smaller circuit label located on the door.

Small Wiring : The cubicle should be completed with all small wiring,m.c.b.’s terminal blocks, cable glands...etc

Test Switch : a) One test switch (service/test) connected in differentialprotection circuit.

b) One test switch (Service/Test) connected in restricted




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earth leakage protection circuit.

c) Ditto... but for standby earth fault relay.

N.B. : All relays shall have flag indications.

N.B. All relays shall have flag indications

Remote Supervisory & Control:

a. Auxiliary relay for “Remote Supervisory” tripping of the circuit breaker with a separateset of contacts to interrupt the auto indication and alarm circuits.

b. Auxiliary relay for “remote supervisory” closing of the circuit breaker with separatesets of contacts may be necessary.

c. Status indicationsi. Circuit breaker - “Open” - “Closed” -“ Withdrawn”

ii. Selector switch “Supervisory” – “Local”.

d. Alarms

- Under frequency relay trip

- Out of step alarm per group of transformers - Restricted Earth Fault Trip

- Standby Earth fault trip

- Buchholz transformer alarm

- Buchholz transformer trip- Buchholz tap changer alarm

- Buchholz tap changer trip

- Oil temperature alarm

- Oil temperature trip

- Winding temperature alarm

- Winding temperature trip

- Low oil level transformer alarm

- SF6 gas low pressure (if applicable) and pressure switches operated.e. Any other necessary auxiliary relays and/or contactors.

f. Necessary terminal blocks.

g. Supply, installation and wiring of the following equipment:

i. One MW and one MVAR transducers (with polarity)

ii. One amp. and one volt transducer.

N.B. All contacts for remote supervisory and control should be clean contacts (potential -free) and of f leeting type with holding time not less than 25 m. sec.

5.2.2.3 Remote Control and Relay Boards: 15 MVA Transformers:




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Purpose : Remote control of 15 MVA Transformers.

Panel Nos : 4, 7, and 15.

Operation : a) Control switch “Trip” and “Close” D.C. Supply.

b) Supervisory/Local Control selector switch.

Indications : a) Semaphore indication (normally de-energized D.C.supply).


c) One auto-trip indication.

d) Pressure switches operated alarm with flag indication.

e) SF6 gas low pressure alarm/trip with flag indication (ifapplicable).

Instruments : Three Ammeters, flush mounting type, scaled to suit C.T.ratio.

Relays : Over-current and earth leakage relays.

Labels : a) One circuit label located on a prominent position at thefront of the control board.


Small Wiring : The cubicle should be complete with all small wiring,m.c.b.’s, terminal blocks cable glands, etc...

Testing Switch : One test switch (service/test) connected in over- currentand earth leakage circuit.

Remote Supervisory and Control:

a) Auxiliary relay for “ remote supervisory” tripping of the circuit breaker with a separate

set of contacts to interrupt the auto-trip indication and alarm circuits.b) Auxiliary relays for “remote Supervisory” closing of the circuit breaker with separate

sets of contacts as may be necessary.

c) Status Indication”

i. Circuit breaker “Open” - “Close” - “Withdrawn”.

ii. Selector switch “Supervisory” - “Local”.

d) Alarms: Circuit breaker “auto-trip”, low SF6 gas pressure, (if applicable) and pressureswitches operated alarms.

e) Another necessary auxiliary relays and/or contactors.


NOTE: All contacts for remote supervisory and control should be clean contacts (potential- free) and fleeting with holding time not less than 25 ms.




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5.2.2.4 Remote Control and Relay Boards : Bus Bar Coupler Control

Purpose : Bus Bar coupler control

Panel NO. : 8

Operation : a) Switch “Trip” and “Close” D.C. supply.

b) Supervisory/Local control selector switch.

Indication : a) Mimic diagram coloured red with semaphore positionindications (normally de-energized) D.C. Supply


c) One auto-trip flag indication.



Instruments : One Ammeter, flush mounting type scaled to suit C.T.Ratio.

Relays i. One over-current and earth leakage protection relay.

ii. Frequency shedding relay together with master trip

relays. (Two under frequency relays to .be providedas purchaser’s practice one on each end of the board.

Labels : a) One circuit label located on a prominent position atthe front of the control board.


Wiring : The cubicles should be complete with all small wiring,m.c.b’s., terminal blocks, cable glands, etc..

Test switch : One test switch (Service/test) connected in the over

current and earth leakage protection.

Remote Supervisory and Control

a) Auxiliary relay for remote supervisory tripping of the circuit breaker with separate setsof contacts to interrupt the auto-trip indication and alarm circuits.

b) Auxiliary relay for “Remote Supervisory “ closing of the circuit ** breaker withseparate sets of contacts as may be necessary.

c) Status indication (circuit breaker “Open” - “Close” - “Withdrawn”, selector switch“Supervisory” - “Local “).

d) Alarms (circuit breaker - auto - trip, low SF6 gas pressure (if applicable) and pressureswitches operated alarms).

e) Any other necessary auxiliary relay and or contactors




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g) Supply, installation and wiring of the following equipment.

One Amps. Transducer

N.B: All contacts for remote supervisory and control should be clean contacts (potential-free) and fleeting, except for SF6 pressure (if applicable), with holding time of notless than 25 m.s.

5.2.2.5 Remote Control & Relay Boards: Bus Section Control

Purpose : Bus Bar section control

Panel Nos. : 9 & 10

Operation : a) Switch “Trip” and “Close” D.C. supply.

b) Supervisory/Local control selector switch.

Indication : a) Mimic diagram coloured red with semaphore positionindications (normally de-energized) D.C. Supply.


c) One auto-trip flag indication.



Instruments : One Ammeter, flush mounting type scaled to suit C.T.Ratio.

Relays : i. One over-current and earth leakage protection relay.

ii. Frequency shedding relay together with master triprelays. (Two under frequency relays to be provided aspurchaser’s practice one on each end of the board.

Labels a) One circuit label located on a prominent position at thefront of the control board.

: b) One smaller circuit label located on the door

Wiring : The cubicles should be complete with all small wiring,m.c.b’s., terminal blocks, cable glands, etc....

Test Switch : One test switch (Service/test) connected in the over-current and earth leakage protection.


a. Auxiliary relay for remote supervisory tripping of the circuit breaker with separate sets




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of contacts to interrupt the auto-trip indication and alarm circuits.

b. Auxiliary relay for “Remote Supervisory “ closing of the circuit breaker with separatesets of contacts as may be necessary.

c. Status indication (circuit breaker “Open” - “Close” - “Withdrawn”, selector switch“Supervisory” -“Local “).

d. Alarms (circuit breaker - auto - trip, low SF6 gas pressure (if applicable) and pressureswitches operated alarms).

e. Any other necessary auxiliary relay and or contactors.

f. Necessary terminal blocks.

g. Supply, installation and wiring of the following equipment. One Amps. Transducer

N.B.: All contacts for remote supervisory and control should be clean contacts (potential-free) and fleeting, except for SF6 pressure (if applicable), with holding time of notless than 25 m.s.

NOTE:

1. Under frequency load shedding protection is to be provided in the 33KV switchgear. Thetender price shall include the cost of all relays, wiring, testing, etc. complete in allrespects.

2. If SF6 insulated 33 kV circuit breakers are offered, a local alarm for each circuit breakerwith flag indication shall be provided for low gas pressure with auxiliary contacts forremote supervisory group alarm.

3. When the switches specified under various clauses, withdrawable relays with testingplugs can be used.




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5.2.3 Power Transformers

Three : 45 MVA, 132/33 kV power transformers with ON-LOAD automatictap-change control and in accordance with the specification and asdetailed later.

Three : 15 MVA, 33/11.5 kV power transformers with ON-LOAD automatictap-change control in accordance with the specification and asdetailed later.

Two : 250 KVA, 11/0.433 kV cast resin station transformers with off-circuittap-changer in accordance with the specification and as detailedlater.




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5.2.4 Power Cables

5.2.4.1 SHND A substation to existing 33 kV oil filled cables between old SHND A and SHSNMsubstations

1) Supply and installation of three circuits each comprising one 33 KV 3/core 300 sq.mm,oil filled cable and one 34-core pilot and telephone cable including all necessaryaccessories, joint pits, oil tank pits and road crossing, cable cover tiles, cable protectionnet, warning tape, joint markers, etc. between SHND A S/Stn and the existing 33KV3/core cables between SHSN M and old SHND A substation.

Basic Route length: . 3x 575 metres

2) Supply and installation of three sets of cable tails each comprising three 400 sq.mm.1/core PILC&S 33 KV cables and all necessary accessories.

Basic route length: 3x 50 metres

3) Directly terminating the cables laid under (2) above from one end to the 33 KVSwitchgear at SHND A substation and the other end to be jointed to the cables laidunder (1) above.

4) The other end of the 33 KV 300 sq.mm. 3/core oil filled cables laid under (1) above willbe jointed to the existing 33 KV oil filled cables between SHSN M and old SHND Asubstations after cutting these existing cables through straight joints suitable to theexisting cables to form three complete circuits between SHSN M and SHND “A”.

A substations (the dead cables towards old SHND A substation to be capped).

5) Terminating the pilot cables laid under (I) above from one end to the existing cables andfrom the other end to the marshalling cabinet at SHND A substation.

5.2.4.2 SHND A substation to existing 33 kV oil filled cables between old SHND A and LPG Msubstations

1) Supply and installation of three circuits each comprising one 33 KV 3/core 300 sq.mm.oil filled cable and one 34-core pilot and telephone cable including all necessaryaccessories, joint pits, oil tank pits and road crossing, cable cover tiles, cable protectionnet, warning tape, joint markers, etc. between SHND A S/Stn and the existing 33 KV3/core cables between LPG M and old SI-IND A substation.

Basic Route length: 3x750 metres.

2) Supply and installation of three sets of cable tails each comprising three 400 sq.mm.1/core PILC&S 33 KV cables and all necessary accessories.

Basic route length: 3x 50 metres

3) Directly terminating the cables laid under (2) above from one end to the 33 KV

Switchgear at SI-IND A substation and the other end to be jointed to the cables laidunder (1) above.

4) The other end of the 33 KV 300 sq.mrn. 3/core oil filled cables laid under (1) above willbe jointed to the existing 33 KV oil filled cables between LPG M and old SI-IND Asubstation inside old SHND A S/Stn boundary wall substations after cutting theseexisting cables through straight joints to form three complete circuits between LPG Mand SHND A substations (the dead cables towards old SHND A substation to becapped).

5) Terminating the pilot cables laid under (1) above from one end to the existing cablesand from the other end to the marshalling cabinet at SHND A substation.

5.2.4.3 SHND A substation to existing 33 kV oil filled cables between old SHND A and SHUAIBAAW substations

1) Supply and installation of one circuit comprising one 33 KV 3/core 300 sq.mm. oil filled




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cable and one 34-core pilot and telephone cable including all necessary accessories, joint pits, oil tank pits and road crossing, cable cover tiles, cable protection net, warningtape, joint markers, etc. between SHND A S/Stn (old) and the existing 33 KV 3/corecables between SHSND M (Old) and Shuaiba AW substation.

Basic Route length: lx 475 metres

2) Supply and installation of one set of cable tails each comprising three 400 sq.mm.1/core PILC&S 33 KV cables and all necessary accessories.

Basic route length: lx 50 metres

3) Directly terminating the cables laid under (2) above from one end to the 33 KVSwitchgear at SHND A substation and the other end to be jointed to the cable laid under(1) above.

4) The other end of the 33 KV 300 sq.mm. 3/core oil filled cable laid under (I) above will be jointed to the 33 KV oil filled cable between Shuaiba AW and old SHND A substationswhich will be laid by M/s NKF under contract C/1711-96/97 after cutting this cablethrough straight joints to form one complete circuit between Shuaiba AW and SHND A

substations (the dead cables towards old SHND A substation to be capped).

5) Terminating the pilot cables laid under (I) above from one end to the existing cables andfrom the other end to the marshalling cabinet at SHND A substation.

5.2.4.4 Power Cables for 45 MVA Transformers:

i. Three Circuits : Each circuit comprising seven single core (two perphases and one neutral) 33 kV 500 sq.mm. PILC&Sor XLPE cables as detailed in the specification andcomplete with all accessories and jointing materialfor connecting at one end to the switchgear andneutral change-over switch cabinet and to the

transformer at the other end.

ii. Three Circuits : Each circuits comprising one 3 kV 400 sq.mm. S/CXLPE cable connected between earthing resistorand earthing pit.

iii. Three Circuits : Each circuit comprises one single core, 33 kV 500sq.mm. XLPE insulated PVC sheathed cablecomplete with all accessories for connectionbetween the 45 MVA transformers neutral earthingchange over switch cabinet at one end and to the 24ohms earthing resistor at the other end.

iv. Three Circuits : Ditto as (iii) above but between change over switchand earthing pit.

5.2.4.5 Power Cables for 15 MVA Transformers

i. Three Circuits : Each circuit comprising three single core 33 kV, 240sq.mm. solid cables as detailed in the specificationand complete with all accessories and jointingmaterial for connecting at the switchgear and thetransformers.




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ii. Three Circuits : Each circuit comprising seven single cores, (two perphase and one neutral) 11 kV, 500 sq.mm. solidcables as detailed in the specification and completewith all accessories and jointing material forconnecting at one end to the switchgear and neutral

change over switch cabinet and the transformers atthe other end.

iii. Three Circuits : Each circuit comprising one 3 kV 400 sq.mm. S/CXLPE cable between earthing resistor and earthingpit.

iv. Three Circuits : Each circuit comprising one single core 11KV 500sq.mm XLPE insulated PVC sheathed cablecomplete with accessories for connecting the 15MVA transformers neutral earthing change-overswitch cabinet at one end and to the 10.5 ohms

resistor at the other end.

v. Three Circuits : Ditto as (iv) above but between changeover switchand earthing pit.

5.2.4.6 Power Cables for 250 KVA Transformers

Two Circuits : Each circuit comprising one 3/core 11 KV, 185sq.mm. XLPE insulated cable as detailed in thespecification and complete with all accessories and jointing material for connecting at the switchgear andthe transformers.

Two Circuits : Each circuit comprising of 4 core 1000 volts, XLPEinsulated 500 sq.mm. copper cables as detailed inthe specification and complete with all accessoriesand jointing material for connecting at the switchgearand the transformers.

5.2.4.7 Power Cables for Emergency Diesel Unit

One Circuit

: Four single core 1000 volts, 300 sq.mm. XLPE insulated PVC sheathed cable for

connection between L.T. Board and wall mounted switch fuse for emergency diesel unit.




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5.2.5 45 MVA Transformer Neutral Earthing Arrangement

5.2.5.1 General

The neutral of each 45 MVA transformer shall be individually earthed through 39 Ohmsresistors. These resistors for three transformers shall be installed in one room in thesubstation. The room shall accommodate three resistors and three change-over switchcabinets, etc... The transformer neutral shall be connected to the change-over switchcabinet by means of 33 KV, 1/C, 500 mm2 PILC & S lead sheathed cable. From changeover switch cabinet, a connection by means of 33 KV 1/C 500 mm2 XLPE Insulated PVCsheathed Cable to the neutral earthing resistor and similar cable for the connection directto ground. From the earthing resistor 3 KV, 400 sq.mm XLPE/ PVC sheathed cable shallbe connected direct to ground at the earthing pit. The required change-over switch shallhave only two position and fitted with means to prevent intermediate off position and theoperating mechanism shall be of the spring charged type.

One set of current transformers ratio 800/IA for restricted E/F and ratio 800/1 for standbyE/F for each transformer is to be provided and suitably installed and wired in the change-over switch cabinet as specified.

Restricted E/F relay, one for each transformer and standby E/F relays one for each of thethree transformers is to be provided.

5.2.5.2 Neutral Earthing Resistors & Change-over switch Cabinets

a) Neutral Resistor

Metallic 39 Ohms neural resistor shall be rated for 800 amps for 30 seconds at 52ºCand shall be as detailed in the specification. One resistor for each transformer to beprovided i.e., total 3 resistors.

b) Change-over

Switch Cabinets: Three number cabinets, each with C.o. switch, current transformers,

cable boxes, etc., as specified. One cabinet for each transformer.

c) Cable Boxes

1. One cable box with brass wiping gland pointing vertically downwards to receive one1/core PILC & S 33 KV 500 mm2 cable complete with compression lugs and heatshrinkable type termination for connection of transformer neutral cable the c.o.s Onebox for each cabinet i.e, three in total.

2. Two cable boxes with compression type brass gland pointing vertically downwards toreceive two 1/core XLPE, 33 KV 500 mm2 cable complete with compression lugs andheat shrinkable type termination for Connection between cabinet and respectiveresistors, and for the second cable to earth pit as direct to ground.




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5.2.6 11 KV Switchgear: Comprising

Twenty two (22) panels, duplicate bus bar 11 KV 500 MVA switch-board and associatedremote control and relay boards comprising panels, reading from left to right when viewedfrom the front as follows :

Panel Nos. 1,2,3,4,6,11, 13, 14, 15,16, 17, 18, 20, 21 & 22. (All 11 KV feeder Controls)

Panel Nos. 7 & 10 : Local 250 KVA 11/.433 KV transformer control.

Panel Nos. 5, 12, 19 : 15 MVA 33/11.5 KV transformer control.

Panel No. 8 : Bus-bar coupler switch.

Panel No. 9 : Bus-Bar section switch.

Bus-Bar rating: 1600 Amps per phase (Kuwait rating).

5.2.6.1 11KV Switchgear Feeders

Purpose : Feeder control

Panel Nos. : 1,2,3,4,6,11, 13, 14, 15,16, 17,18, 20, 21 and 22.

Breaking Capacity : 500 MVA at 11,000 volts.

Normal current rating : 600 Amps. (Kuwait Rating)

Bus Bar Current rating : 1600 Amps. (Kuwait Rating)

Operation : Remote controlled automatic motor charged spring close.

Trip coils : D.C. Supply Shunt Trip.

Spring release coil : D.C. supply

Current Transformer :

a) Solkor protection current transformer ratio 400/1 Amps 15 VA minimum capacity classX accuracy.

b) Over-current and earth leakage protection current transformers ratio 400/1 Amps. ForO/C & E/L, Ammeter and transducer.

Local Control : Emergency “Trip’ button, Suitable recessed or shrouded.

Instrument Panel : One instrument panel mounted in a suitable location to house“ON” and OFF’ indication lamps 240 volts A.C. supply, glasslenses or LED (light emitting diods) coloured red and green.

Cable Box : One cable dividing box pointing vertically downwards suitable toreceive 11 KV 3/core 300 sq.mm copper conductors XLPE

insulted, wire armoured and overall served cable, Terminationshall be of the heat shrinkable type.

In order to facilitate crossing of cores without damage toinsulation, the distance from the cable crutch to the 11 KVterminals shall be about 630 mm. and accordingly allcomponents of the heat shrinkable terminations such as nontracking, stress control tubings, insulating sleeves, boots, etc.shall be suitable for these dimensions.

Cable Glands : The cable glands shall be of compression type and brass madewith internal diameter of minimum 72 mm and with standard sizeof ’85’ and copper bonding facility shall be provided for earthing.

The copper compression lugs shall have a single hole of 17 mm.diameter on the flat palm of the lug for connection. The type ofcable glands and compression lugs are subject to MEWapproval




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Labels : i. One circuit label of adequate dimensions in metalframe, left blank, located on a prominent positionwhen

ii. One smaller circuit label, left blank, fixed at therear of the panel.

5.2.6.2 11 KV Switchgear - 15 MVA Transformer Controls

Purpose : 15 MVA Transformer control

Panel : 5, 12 and 19

Breaking capacity : 500 MVA at 11 KV

Normal current rating : 1000 Amps. (Kuwait Rating)

Bus Bar Current Rating : 1600 Amps (Kuwait Rating)

Operation : Remote controlled automatic motor charged spring close. TripCoils : D.C. Supply Shunt Trip


Current Transformers :

a) Current transformer with class 5P20 for biased differential transformer protectionshall have secondaries which shall match the characteristic of the C.T’s on 33 kVside.

b) CT’s for the restricted earth fault protection ratio 800/1 or 5 Amps. class S p 20.

c) C.T. ratio 800/1 or 5 Amps. class ‘I’ accuracy for Ammeters, Power factor meter,Kilowatt meter and KVAR meter and transducers.

Local control : Emergency “trip” button suitably recessed or shrouded.

Instrument panel : One instrument panel mounted in a suitable location to houseand “OFF” indication lamps, 240 volts A.C. with glass lenses orLED (light emitting diods) coloured red and green.

Cable Box : One cable dividing box with brass wiping glands pointingvertically downwards to receive six single core PILC & S, orXLPE 11 KV 500 sq.mm. cables (2 per phase) complete withcompression type cable lugs (flexible heat shrinkable type).Termination shall be of the heat shrinkable type

Labels : i. One circuit label of adequate dimensions fitted ina metal frame shall be provided.

ii. One smaller circuit label fixed at the rear of thepanel shall be provided.

Voltage Transformer : One 3-phase voltage transformer ratio -

11500 / 110 volts class (1) accuracyV3 V3

for instruments, metering and voltage regulation.

5.2.6.3 11 KV Switchgear - Local Transformer Controls : (250 KVA)

Purpose : Local transformer control:

Panel Nos. : 7 and 10

Breaking capacity : 500 MVA at 11 KV

Normal current rating : 600 Amps (Kuwait Rating)




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Bus-Bar current rating : 1600A (Kuwait Rating)

Operation : Remote controlled automatic motor charged spring closed

Trip Coil : D.C Supply shunt trip.

Spring release coil : D.C Supply.

Current transformers : Ratio 30/ 1 or 5A, 15 VA minimum capacity for over-current andearth leakage protection and ammeter.

Local Control : Emergency “Trip” button, suitably shrouded or recessed.

Instrument panel : One instrument panel mounted in a suitable location to house“ON” and “OFF” indication lamps 240 volts A.C. with glasslenses or L.E.D. (light emitting diods) coloured red and green.

Cable Box : One cable dividing box pointing vertically downwards suitable toreceive 11 KV 3/c 185 sq.mm. copper conductor XLPE insulatedwire armoured, PVC covering cable with compression type cablelugs, compression type brass glands and arrangement to secure

efficient earthing of the armouring. Termination shall be of theapproved heat shrinkable type.

Labels : 1. One circuit label of adequate dimensions fixed ina metal frame.

2. One small label fixed at the rear of the switchgear.

5.2.6.4 11 KV Switchgear - Bus bar coupler & Bus bar section switches

Purpose ; Bus-Bar coupler and bus bar section controls.

panel Nos. : 8 & 9

Breaking Capacity : 500 MVA at 11,000 volts.Normal current rating : 1600 Amps (Kuwait rating)

Bus-Bar current rating : 1600 Amps (Kuwait rating)

Operation : Remote controlled automatic motor charged spring close.

Trip Coil : D.C. Supply shunt Trip.

Spring Release Coil : D.C. Supply

Current Transformers : Over current and earth leakage protection CT’s ratio 1600/1 ampsor 1600/5 amps - 15 VA minimum capacity.

Local controls : Emergency “Trip” button, suitable shrouded or recessed

Cable Box : NIL

Instrument panel : One instrument panel mounted in a suitable location to house“ON” and “OFF” indication lamps 240 volts A.C. with glass lenseor LED (light emitting diods) coloured red and green.

Labels : As other panels

One Set : Pressure switches for protection against internal arc faults. Theseswitches shall be provided for each compartment in eachswitchgear panel and wired to trip 11 KV circuit breakers asdescribed. in vol. I of this specification. Separate alarm flagindication for each panel shall be provided on the 11 KV control

board and through separate auxiliary clean contacts a groupalarm shall be arranged for signalling the alarm to the controlcentre.




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NB : Where the 33 KV and 11 KV SF6 gas insulated switchgears areoffered, these shall be provided with busbar zone protection asdetailed under MEW technical specification No. MEW/SS/6-Protection schemes as alternative to the pressure switchprotection with the metal clad switchgear type. All necessarycurrent transformers are to be added in this case.




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5.2.7 Remote Control & Relay Panels for 11kV Switchgears

5.2.7.1 Remote Control and Relay Panels - Feeders

Purpose : Feeder remote control

Panel Nos. : 1, 2, 3, 4, 6, 11, 13, 14, 15, 16, 17, 18, 20, 21 & 22

Operation : Control switch “Trip” and “Close” D.C supply.

Indication : Mimic diagram coloured “Black” with semaphore positionindication (normally de-energized)D.C supply.

Instruments : One Ammeter flush mounting type scaled for C.T. Ratio 400/IAmps connected in yellow phase, with max demand indicator(hand reset).

Relays :

a) One solkor “RF” 5 KV insulation feeder protection relay.

b) One over-current and earth leakage protection relay with flag indications.

All relays shall have spare contacts for supervisory remote indication.

a) One auto trip alarm relay similar to type “J” of M/SReyrolle manufacture connected to give individual localindication and remote supervisory group alarm.

Alarm

b) Pressure switches operated, SF6 gas low pressure (ifapplicable) and D.C failure, local and remote supervisoryalarm group indication.

Healthy trip

indication

:One healthy trip circuit with lamp, resistance and push

button test switch.

a) One small label left blank for engraving locally, located onthe front of the panel.

Labels

b) Two small labels left blank located inside the cubicle andon the door.

SmallWiring

: The cubicle to be completed with small wiring M.C.B.’s,terminal blocks, glands .. . .etc

a) Test switch (service/test) connected in the over current

and earth leakage protection circuits to short C.T’s toenable testing of protection circuits.

Test

Switches

b) Similar test switch for solkor “RF” protection circuit,where withdrawable relays are used, testing to beprovided as per clause 6.2 - (V) of volume I.

Remote Supervisory Requirements:

a. Auxiliary relay for remote supervisory tripping of the circuit breaker with a separateset of contacts to interrupt the auto-trip indication and alarm circuits.

b. Auxiliary relay for remote supervisory closing of the circuit breaker with separate sets

of contacts as may be necessary.

c. Status indication




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i. Circuit breaker auto-trip signal

ii. Circuit breaker - “open” - “closed” - “isolated”

iii. Selector switch - “supervisory” - “local”

d. Any other necessary auxiliary relays and/or contactors

e. Necessary terminal blocks

f. Supply, installation and wiring of the following equipment:

i. Two relays of M/s Siemens type 23009/SRI 5 rated at 50 volts d.c. or equivalentare to be supplied one for opening and one for closing the circuit breaker.

ii. One amp transducer.

NB: All contacts for remote supervisory and control should be clean contacts (potentialfree) and of the fleeting type with holding time not less than 25 m.sec.

5.2.7.2 Remote Control and Relay Panel - 15 MVA Transformers

Purpose Remote control of 15 MVA transformers

Panel Nos 5, 12 & 19

a) Control switch “Trip” & “Close” D.C. supply.Operation

b) Supervisory/Local Control selector switch.

Indication a) Mimic diagram coloured “Black” with semaphoreposition indication (normally dc-energized) D.CSupply.

Alarm a) One auto-trip alarm relay similar to type “J” of MISReyrolle manufacture connected to give localindication and remote supervisory alarm.

b) Alarms flag indications for transformer oil temperature,winding temperature bchholz main tank; bchholz tap-changer indication, low oil level for each tank andconnected to give local and remote supervisoryalarm. Similar group of relays to give trip (local &remote) indications

Alarm

c) Pressure switches operated, SF6 gas low (ifapplicable) and D.C failure. Local and remotesupervisory group indication

a) One kilowatt meter scaled for C.T. ratio 800/1 or 5Amps and VT. ratio 11500 / 110 V3 V3 volts.

b) One KVAR meter scaled for above ratios. c) Onepower factor meter (active/reactive) d) ThreeAmmeters scaled to suit C.T. ratio.

c) One power factor meter (active/reactive)

Instruments

d) Three Ammeters scaled to suit C.T. ratio.




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a) One biased differential transformer protection relayswith flag indications.

b) One restricted earth fault relay with flag indication.

c) Transformer winding temperature alarm/trip relayswith flag indications.

d) Transformer oil temperature alarm/trip relays with flagindications.

e) Buchholz alarm/trip relay main tank with flagindications.

f) Buchholz trip relay tap-changer chamber with flagindication.

g) Low oil level alarm with flag indication.

h) One intertrip relay to trip 33 KV, 11KV C.B.’s with flagindication.

Relay

i) Necessary relays for interlocking

j) Standby E/F relay with flag indication.Relay

k) Pressure relief device operation relay with flagindication.

Healthy tripindication:

: One healthy trip test circuit with lamp, resistance andpush button test switch.

Healthy voltageindication

: Three Nos. 240 A.C. voltage failure indication lamps orLED (light emitting diodes) with glass lenses colouredRed- Yellow - Blue.

a) One circuit label located on the front of the panel.Labels

b) Two similar label located inside the cubicle and on thedoor.

Small Wiring : The cubicle to be completed with small wiring, m.c.b.,terminal block, etc....

Test Switches a) Test switch (service/test) connected in the transformerdifferential protection circuits to short C.T.’s to enabletesting of protection circuits.

b) Similar test switches for restricted earth protectionwhere with rewable relays are used testing plugs to be

provided as per clause (6. 1) of vol. I.

c) Similar but for stand by earth fault relay.




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a) Auxiliary relay for “Remote Supervisory” tripping of thecircuit breaker with a separate set of contacts tointerrupt the auto-trip indication and alarm circuits.

b) Auxiliary relay for “Remote Supervisory” closing of thecircuit breaker with separate sets of contacts as maybe necessary.

c) Status indication:

i Circuit breaker auto-trip signal.

ii Circuit breaker — ‘Open” -“Close” -“Isolated “.

iii Selector switch -“ Supervisory” - “Local”.

d) Alarms Separate alarm signals for each of differential,over current, earth fault, restricted earth fault, standbyearth fault, buchholz main tank alarm/trip tap changetrip, oil temperature alarm/trip, winding temperaturealarm/trip, blowers running, low oil level of each ofconservator main tank and tap changer tank, “lowair/gas pressure” if applicable.

e) Any other necessary auxiliary relays and/orcontactors.

f) necessary terminal blocks.

g) Supply, installation and wiring of the followingequipment :-

i. Two relays of M/S. SIEMENS type 23009/SR15 ratedat 50 v.d.c. or equivalent are to be set, one foropening and one for closing the circuit breaker.

ii. One MW and one MVAR transducers.

iii. One Amp. transducer.

iv. One Volt transducer.

NB. : All contacts for remote supervisory and control should be clean contacts (potentialfree) and of the fleeting type with holding time not less than 25 m. sec.

5.2.7.3 Remote Control & Relay Panels - Local Transformers

Purpose : Control of local transformer

Panel Nos 7 and 10

Operation Control switch “ Trip” and “close” D.C supply




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Indication Mimic diagram coloured “Black” with semaphoreposition indication (normally de-energized) D.C.Supply.

Instruments One Ammeter scaled for C.T.ratio 30/1 or 5 A

complete with isolating transformer.

Relay Over-current and earth leakage relay.

Alarms As for feeder control in addition an alarm/trip relaywith flag indication for winding temperature.

Healthy trip As for feeder Control

Labels As for feeder control

Small wiring As for feeder control

Test terminalBlock

As for feeder control

i. Status indication C.B open/closed.

ii. Auto trip signal

Remotesupervisoryrequirements

iii. One Amp. Transducer

5.2.7.4 Remote Control and Relay Boards - Bus Bar Coupler and Bus-Bar Section

Purpose : Remote Control of Bus Bar coupler and bus-barsection switch.

Panel Nos 8 and 9

Operation : Control switch “Trip” and “Close” D.C. Supply

Indication Mimic diagram I I KV circuit coloured “Black” withsemaphore position indications (normally de-energized).

Instruments One Ammeter scaled for C.T. ratio 1600/1 or 5 Amps.

Relays One over-current and earth leakage relay. Alarms : Asfor feeder control

Healthy tripindication

As for feeder control

Labels As for feeder control

Small wiring As for feeder control






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5.2.8 15MVA Transformer Neutral Earthing Arrangement

5.2.8.1 General

The neutral of each 15 MVA transformers shall be individually earthed through 10.5 ohm.resistor. These resistors for 3 transformers shall be installed in one room in the substationthe room shall accommodate 3 resistors and 3 change over switch cabinets etc.

The transformer neutral shall be connected to the change-over switch cabinet by means of11 KV 1/C 500 mm PILC & S, lead sheathed or XLPE cables. From the change-over switch,a connection by means of 11KV 1/C 500 sq. mm2 X.LPE insulated PVC sheathed cable tothe neutral earthing resistor and similar cable connection shall be connected direct toground. From the earthing resistor 3 KV 400 sq.mm XLPE/PVC sheathed cable shall beconnected direct to ground at the earthing pit.

The required change-over switch shall have only two positions and fitted with means toprevent intermediate off position and the operating mechanism shall be of the springcharged type.

One set of current transformer ratio 800/IA for restricted E/F and ratio 800/1 for stand-by

E/F for each transformer is to be provided and suitably installed, and wired in the change-over switch cabinet as specified.

Restricted E/F relay, one for each transformer and stand-by E/F relay one for eachtransformer is to be provided.

5.2.8.2 Neutral Earthing Resistors & Change-over switch cabinets

a) Neutral Resistor Metallic 10.5 Ohm neutral resistor shall be rated for 800 Amps. for 30seconds at 52ºC and shall be as detailed in the specifications One resistor for eachtransformer to be provided i.e. total (3) three resistors.

b) Change-over Switches Cabinets

Three number cabinet each with CO. switch, current transformers, cable boxes .etc. asspecified one cabinet for each transformer Cable Boxes:

i. One cable box with brass wiping gland pointing vertically downwards to receiveone 1/core PILC & S or XLPE 11 KV 500 sq.mm. cable complete withcompression lugs and heat shrinkable type termination for connection oftransformer neutral cable to the cabinet one box for each cabinet i.e three in total.

ii. Two cable boxes with compression type brass gland pointing verticallydownwards to receive two 1/core XLPE 11KV 500 sq.mm. cable complete withcompression lugs and heat shrinkable type termination for connection betweencabinet and respective resistors one for each resistor and the second forconnection direct to ground.




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5.2.9 Transformer Tap Change Control Desk (or Panel)

The arrangement of tap-change control desk with reference to 33 KV and 11 KV remotecontrol and relay panels is subject to approval.

These panels shall be arranged to read from left to right as follows:-

Panel No. 1 : 45 MVA transformer No. 1Panel No. 2 : 45 MVA transformer No. 2

Panel No. 3 : 45 MVA transformer No. 3




NOTE : Alternatively the tap-change control panels may be arranged to form partof the 33 KV remote control panels, in which case the panel numbers willbe 5A, 11A & 16A on 33 KV control board and 5A, 12A and 19A on the 11

KV control board.Purpose : Tap-change control panels.

Panel Nos. : 1, 2 and 3 (alternatively 5A, 11A, 16 A on the 33 KV control board), and 4,5 and 6 (alternatively 5A, 12A and 19A on the 11KV control board).

Operation : a) Tap-change “Raise and Lower” control switches.

b) Tap-changer control selector switches for :

-Hand or automatic

-Individual parallel operation

-Leader or follower regulations control.

a) Tap-change position indicatorIndication

b) Tap-changer in progress

Instruments : One voltmeter with selector switch.

a) One voltage regulator relay with time delayRelays

b) One out-of step relay

a) Out-of step alarm with flag indication.Alarms

b) Drive mechanism motor trouble with flag indication.

Remote Supervisory and control

a) All necessary contactors and/or auxiliary supervisory and control relays.

b) Status indication: Tap-changer positions (1- 21 steps) tap changer in progress, tap -changer supervision transformer in parallel and fan running.

N.B: The supervisory/local selection shall be arranged by supervisory local selectorswitches for the 33 KV and 11 KV circuit breakers controlling the corresponding 45MVA and 15 MVA transformers.

c) Alarms : Transformer out of step, oil temperature, winding temp., buchholz and low oillevel alarm.




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d) Supply, installation and wiring of the following equipment.

i. Two relays of M/S. Siemens, type V230091SR15 rated at 50 V d.c. or equivalent areto be used for each tap control, one for “Raise Tap’ and one for “Lower tap”

ii. All the 21 tap positions to be wired separately for remote supervisory and not as ameasurement through transducers.

NB.: All contacts for remote supervisory and control shall be clean contacts (potential-free)and of the fleeting type with holding time not less than 25 m. sec.

Sundries : All contactors, terminal blocks, labels, fixtures, wiring, ferrule, m.c.b links,connections, rear access doors, multicore cable glands and all other necessaryapparatus connected with the tap-change equipment

Annunciator: Window type annunciator shall be provided at a suitable place on the controlpanel with necessary alarm window (plus four windows as spare) and to whichvarious sub-station equipment alarm, which are not covered in the specification(as fire fighting, pressure switches.... etc.) shall be connected. These alarmsshall have auxiliary alarm contacts and which will be connected to substation

general alarm for remote supevisory indication. The local alarm indicationsshall be by means of flag indication. The above is applicable to whole s/stn




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5.2.10 Low Voltage Distribution Board

A) Switch Board

MVA level: Not less than 5 MVA (at 415 V)

Bus Bar Rating: 600 Amps (Kuwait rating) (Phase)

Bus-bar section Switch: 600 Amps. (Kuwait rating)

Nominal voltage: 433 Volts

Electrical and/or mechanical interlocking against parallel operation of local transformersshall be provided.

B) Incoming Transformer Isolator Transformer control

Propose : Transformer

Control Type : Air break off-load isolator

Quantity : Two isolators per board

Rating : 500 Amps (Kuwait Rating)

Through short circuit Fault capacity : 5 MVA (at 415 volts)

Current Transformers: Three current transformers, ratio 400/1 or 5, 1 5 VA capacity forinstruments class 3 accuracy.

Instruments : a) Ammeter suitably scaled for above C.T ratio

b) One voltmeter, with selector switch to select phase to neutral andphase to phase voltage.

Indication : “ON”/OFF” and “Isolated Mechanical Indication.Cable Termination: Four terminal arrangements for connecting four single core 500

sq.mm. copper conductor, crossing linked polyethelene insulated and PVCserved cables.

C) Moulded case circuit breakers (100 Amps, 60 Amps & 30 Amps Units)

Purpose : Various substation supplies

Type : Fixed type 3-phase and neutral

Quantity : Six 30 Amps., four 60 Amps. and six 100 Amps.

Rating : 30, 60 and 100 Amps (Kuwait ratings)

Breaking Capacity: 5 MVA at 415 volts

Operation : Manual

Indications : Mechanical “ON” - OFF”

D) Moulded case circuit breaker or miniature circuit breakers

Purpose : Control of various substation equipment such as battery chargers,switchgear charging motors, transformers, controls . .etc.

Type : Fixed type

Quantity and Rating: As needed Miniature or moulded circuit breakers (with at least

four spare 1 No.100 A, 2Nos. 60A & 1 No. 30A).Indication : Mechanical “ON”/”OFF”

E) Moulded Case Circuit Breaker




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Purpose : Mobile emergency diesel generator unit control.

Type : Fixed type 3-Phase and neutral

Quantity & Rating: One 500 Amps.

Breaking Fault Capacity: 5 MVA (at 415 volts)

Operation : Manual

Indications : Mechanical “ON/”OFF”

Cable Terminations: Four terminal arrangements for connecting four single core 300sq.mm. copper conductor XLPE insulated and PVC sheathed cable.

F) One 500 Amps. (3-phase & neutral) wall mounted combination switch fuse locatedin the lobby for connection to emergency mobile diesel generating unit and fed tothe M.C.C.B under 11(E) above. This switch fuse shall be suitable for connection of4-single core, 1000 volts, 300 sq.mm. XLPE insulated PVC sheathed cable asspecified in item 8.1. 10 -Vol. 1. The switch fuse can be alternatively located instation transformers room subject to MEW’s approval.

G) Remote supervisory and control - necessary auxiliary relays and/or contactors togive local and remote indications of total main A.C. failure.

H) All sundry equipment to complete.

1. The power supply for the fire fighting & alarm system, HVAC, lighting and socketoutlet, 110V DC system for DC lighting, etc supplied by Purchaser shall beconnected directly from the L.T Board. Supplier is requested to make thenecessary arrangements in the L.T board for such connections. The load list willbe provided on detail design stage.

2. All circuit breakers and miniature circuit breakers must be equipped with auxiliarycontacts for remote indications at the supervisory centre in case these are

tripped due to fault in the sub-circuits or opened initially by hand. These contactsare grouped to give a local alarm on the 11 KV control board in addition to therequired remote indication.

3. Electrical and/or Mechanical interlocking against, parallel operation of localtransformers shall be provided.

4. The following out-going circuits should also be provided in addition to what isspecified. These m.c.b’s are required for telemetry equipment

AC & DC supplies

2MCB’s of 15 A1415/AC 3 phase for chargers

1 MCB of 15A1240V/AC 1 phase for panel lighting1 MCB of 15A/240V/AC 1 phase as spare

1 MCB of 15 A/220V/DC for fault lamps




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5.2.11 Details for Transformers

(Note: All ratings are minimum ratings under worst Kuwait Conditions)

SerNo.

DETAILS OF TRANSFORMERS 45 MV TRANS 15 MVA TRANS 250 kVA CASTRESIN TRANS

1 Quantity required Three Three Two

2 Continuous maximum rating (C.M.R.)Kuwait

45 MVA 15 MVA 250 kVA

3 Type of installation Outdoor Outdoor Indoor

4 Nominal transformation ratio 132/33 kV 33/11.5 kV 11/.433 kV

5 Method of cooling (ON-Oil Natural)(AF-Air Forced) (AN-Air Natural)

ONAF/ONAN ONAN AN

6 External cooling medium Air Forced Air Natural Air Natural

7 Phase connections

a) H.V. Winding Delta Delta Delta

b) L.V. Winding Star Star Star

c) BSS Vector Group reference 4/Dy/11 4/Dy/11 4/Dy/11

8 Percentage Impedance voltage 15% 12% 5%

9 Transformer designed for impulseTesting

Yes Yes Yes

10 Type of tap-change equipment (ON-LOAD or OFF-LOAD)

ON-Load Automaticremote electrical andmanual

ON-Load Automaticremote electrical andmanual

OFF-Load (OFF-Circuit manualhoused) in an airtight box

11 Total range of variation of transformerratio

20% 20% 10%

- Increase ratio % +10% +5% +5%

- Decreasing ratio % -10% -15% -5%

12 No. and Size of step % 20 x 1% 20 x 1% 4 x 2 1/2%

13 Type of insulation Class “A” to Class “A” to Class “F” to

14 Insulation level BSS 171

Standard “1” to B.S.S171

BSS 171 BSS 171

15 System highest voltage of

a) H.V. Winding 145 kV 36 kV 12 kV

b) L.V. Winding 36 kV 12 kV 0.450 kV

16 Transformer designed for paralleloperation

Yes Yes Yes




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17 Dummy master group paralleloperation

Yes Yes No

18 Marshalling Kiosk Yes Yes No

19 Conservator

i) For main tank Yes Yes No

ii) For Tap-changer Yes Yes No

20 Explosion vent Yes Yes No

21 Breather’/s

i) For main conservator Yes Yes No

ii) For tap changer conservator Yes Yes No

22 Buchholz and tap-change gasprotection

i) For main tank Yes Yes No

ii) For H.V. & L.V. link chamber Yes Yes No

iii) For Tap changer Yes Yes No

23 Winding temperature indication Yes Yes No

24 Oil Temperature indication Yes Yes No

25 Low oil level indication/s (for both

sides of conservator)

Yes Yes No

26 Termination

a) H.V. Side Cable box for threesingle core 132 kV300 sq.mm O/Fcable

Cable box for 3-phase core 240sq.mm 33 kV PILC orXLPE cable

Cable box for 3-core11 kV 185 sq.mmcopper conductorXLPE insulated wirearmoured PVC outercovering

b) L.V. Side Cable box for 7-single core 33 kVsolid 500 sq.mmPILC & S or XLPEcable

Cable box for 7-single core 500sq.mm 11 kV PILC &S or XLPE cable

Cable box for 4-single core 500sq.mm copper XLPEinsulated PVC outercover 1000V cable

c) Filling Medium :

H.V. Side Oil Oil or insulated Air tight insulatedcable box with heatshrinkabletermination

L.V. Side Liquid compound orair insulated

Liquid compound orair insulated

Air insulated

27 High voltage cable disconnecting linkchamber Yes Yes No




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28 Low voltage cable disconnecting linkchamber

Yes Yes No

29 Voltage to earth for which star point oftransformer winding is to be insulated

33 kV 11.5 kV 0.433 kV

30 Equipment to be supplied withtransformer for mounting on controlpanels or desks

a) Remote step by step tap positionindicator flush mounting on controlpanels dia

Yes Yes No

b) Voltage control relay with time delay(1.5%) for 45 MVA 1% for 15 MVAtransformers

Yes Yes No

c) Remote control switches Raise/Lower Yes Yes No

d) Change over switches Yes Yes No

e) Out of step relay with hand reset Yes Yes No

f) Tap-change in progress warning lamp240 volts A.C

Yes Yes No

g) Voltmeter, flush mounting type withblack bezelle

Yes Yes No

31 Remote supervisory and control Yes Yes No




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5.2.12 Station Batteries and Associated Charging Equipment

Two : 220 V d.c control and tripping batteries complete with battery stands, batterycharging equipment, charge fail alarm and associated controls, one for tripping andone for C.B’s closing and other services.

Two : Auxiliary d.c. distribution boards as specified.

One : 110 V d.c emergency lighting battery, complete with battery stands, battery chargingequipment, automatic change-over contacts, associated controls and d.c.distribution board, as required in the following;

- Battery charger : 100 A, 110 V d.c

- Ni-Cad Battery : 250 Ah, 10 Hours

- 110V d.c Dist. Board : DC 110 V, 100 A, 2.5 kA

Six (6) rows above are deleted from the Supplier’s scope. However, two (2) feedersfrom LV distribution board shall be reserved for the Suppliers.

One : Automatic high speed change-over switch to switch over the 220 volts D/C supplyto the tripping circuits from the tripping to the control battery in case of D.C tripsupply fails. This switch over operation shall be signalized to N.C.C. as persistentalarm.

N.B.

1. The capacity of the above batteries shall be sufficient for all equipments in this tender.Provision shall also be made to meet the requirements of future extension. Detailedcalculation for determination the capacity of batteries shall be submitted for approval.

2. The Supplier shall submit for approval, the calculations to show the time grading forminiature circuit breaker tripping due to faults on various auxiliary circuits.

3. In case protection fuses are used internally in the chargers, these fuses have to beprovided with auxiliary alarm contacts for local alarm and group to N.C.C. alarm.




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5.2.13 Compressed Air Equipment Where Compressed Air Drive for Operating Mechanismof the 33 kV Circuit Breakers are Offered

i) Two Air Compressor Units each consisting of:

One - Air compressor of adequate capacity with air dryer and filter unit.One Driving motor (433 V., 3-phase 50 Hz A.C. Supply) with automaticcontrol units

ii) Two High pressure air storage receivers.

iii) One set of copper pipe connections, interconnecting all the high pressure airstorage receivers, pressure reduction valves, contact manometers, highand low pressure gauge, automatic drain valves, signaling and indicationdevices for low and high pressure and A.C. supply failure alarms and allother materials to complete the compressed air generation system asspecified.

iv) One set of copper pipe connections to be laid in duplicate feed arrangement,connecting the central compressed air storage system to the individualcircuit breakers, isolators, including the control valves, joints, etc.... tocomplete the compressed air supply circuits.

v) One set of pressure switches for starting, stopping automatically the compressorsto keep the pre-se values of pressures. These switches shall haveauxiliary contacts for local alarm and remote supervisory indication tosignal loss of air, over running, also for master tank pressure loss, motortrouble etc., to be signaled.




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5.2.14 Pilot Cable Marshalling Boxes

a) One Indoor pilot cable marshalling boxes for 34-core pilot cables associatedwith the 33 KV cable feeder circuits and as detailed and wired as perattached drawings. The boxes shall preferably be located in the 33 KVswitchgear rooms.

b) One Indoor pilot cable marshalling box for 16 core pilot cables associated withthe 11 KV cable feeder circuits and wired as per attached drawings. Thisbox should be in the 11 KV switchgear room. The contractor shall installand wire in this box ONE 66 way terminal block as shown on theattached drawings.

NOTE: The above 33 KV & 11 KV marshalling cabinets shall be insulated for 5 KVinsulation level. Thus all the terminal blocks in these marshalling cabinets, controlcables between these cabinets and the control boards, intertripping relays all 5 KVrespectively. For pilot cable cores other than solker cores shall be protected by

means of post office type surge arrestors. The Arrestors shall be rated and voltageinsulated as mentioned above. It may be necessary that another panel installedadjacent to the marshalling cabinets to accommodate these protective devices, beprovided ( the technical details of the arrestors shall be protected by isolatingtransformer with earthed centre tap.




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5.2.15 Telemetry Transfer Terminal Block Cabinets

One : Indoor type sheet metal cabinet with double leaf lift-off door to accommodate thetransfer terminal blocks associated with the teleconrol, signalling, metering, etc. asrequired for the supervisory control centre for the 33 KV circuits. This cabinet shallbe complete with terminal blocks, plugs, wiring, labels (engraved), glands, bolts,

nuts, etc. and any other fittings and other alarm to complete.One : Same as above but for 11KV switchgear and other alarms.

The above shall include the terminal blocks for future circuits. All wiring to these cabinetsshall be 1.5 sq.mm and included in the offer price.




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5.2.16 Substation Special and Auxiliary and Sundry Equipment

5.2.16.1 Substation special and auxiliary equipment:

a) Two sets - of 3-phase test plugs for high voltage testing and primary current injectiontests for each type switchgear (33 KV and 11 KV).

b) Three Nos. -Tool cabinets and tools, one each for 33 KV switchgear and II KVswitchgear.

c) Steel key cupboards (one per switchboard, 33/11 KV) and one No. for the panels in thecontrol room.

d) One – Pneumatic wheel truck as described in the specification.

e) One – Ladder with rubber wheels.

f) One set - Gas leakage detection and location device.

g) One set -Compressed SF6 gas bottles - the set is sufficient for one cable feeder circuitand one transformer circuit, 33 KV switchgear (if applicable).

h) SF6 and N2 gases handling units for extracting and pumping in the gas complete withcompressors, storage tanks, valves, vacuum pumps.... etc for GIS switchgear.

i) Primary current injection leads and adaptors complete with termination lugs.

j) Any other portable pressure meters necessary for periodical maintenance of the SF6circuit breakers.

k) Hydraulic crimping compression tool kit for 11 KV feeders cables (type HT 130 C of MIS.Cembre or type Y 35 of M/S. BICC make

5.2.16.2 Substation Sundry Equipment:

a) Operators desks and chairs.

b) Cabinets and racks for spare parts.

c) Substation cleaning equipment.




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5.2.17 Specification for Telemetry Works:

The Substation to be fully monitored by Shuaiba DCC – Shuaiba Ind. Area A S/Stn:

5.2.17.1 As Fully Monitored Substations

M/S. Siemens A.G. of Germany must supply and install, shift and modify all necessary

equipment and perform alt engineering works for connection of the substation to the NCCin accordance with contract C/P/1291-82/83 and its approved scope of supply.

Tender must get a quotation from M/s. Siemens for the material and services as detailed inthe price Schedule for supervisory control equipment. However it is to be noted that theprice quoted should cover all items of work (equipment/material /service) for theconnection and monitoring of the substation according to the channel routing. Anyequipment/material/service added or deleted in the price schedule has to be substantialedby complete explanation otherwise such a change will not be considered.

5.2.17.2 Channel Routing for Shuaiba Ind. Area A Substation:

1st Route: (Data & Telephone (PABX) - Channel No. 1)

SHND-A PC SNPS PC SSPS PC MARF-B M DCC

2nd Route: (Data & Telephone (PAX) - Channel No.2)

For Data: SHND-A PC SNPS PC SHUB-AW CC DCC

For Telephone: SHND-A PC SNPS PC SHUB-AW (SIEMENS PAX)




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5.2.18 Control Room Temperature Monitoring

The control room shall be provided with a temperature monitoring device which in case thetemperature in the control room exceeds a preset value due to the air conditioning runningout-of-order, this device shall give a local alarm indication on the control board and thoughauxiliary clean contact shall be wired to give an alarm at the National Control Centre. The

cost of this work shall be included in the tender price.




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6 DRAWINGS & DOCUMENTS REQUIREMENTS

6.1 Data and Information to be submitted with Proposal

The Supplier shall submit the Purchaser the required number of copies of his proposaldocuments by the bid closing date, which is described in the cover letter.

The Supplier shall submit the Purchaser’s data formats according to this Specification aftercompleted by filling in the Supplier’s data.

All the data sheets, drawings and technical information shall be submitted for evaluation ofthe Supplier’s proposal design. If not, the Supplier may not be properly evaluated due tothe unavailability of technical information.

6.2 List of Data and Information to be Submitted:

1) Deviations and clarifications from the Specification (using Purchaser’s form)

- Price summary and breakdown price schedule

- Price schedule for equipment and works price schedule

- Price schedule for special tools and lifting tackles schedule

- Cost breakdown of mandatory spare parts by category

- Cost breakdown of recommended spare parts by category

- Cost breakdown for consumables and chemicals by category

- Supervision fee schedule

2) General information and schedule

- References & evidence of capacity and main components of equal rating, designand type

- Quality assurance and quality control program

- Shipping and erection volume and weight

- List of sub-Contractors

3) Technical information related to the performance

- Performance guarantee and technical data (using the Purchaser’s form)

- Technical specification according to the Supplier’s form

- System and equipment description according to the Supplier’s standardspecification and technical information

- Characteristic Curves (Capability Curve as per Ambient Temperature)

- List of Codes and Standards.

-

Instrument & valve list in scope of supply- Terminal point list




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4) Drawings

- Dimensional outline and general arrangement (plan & section) drawing

- Equipment foundation design information with loading data, including embeddedparts and anchor bolt arrangement drawing.

- Manufacturer’s catalogues and literatures to supplement drawings and illustratethe equipment, fitting, furnishing, etc.

6.3 Data and Information to be Submitted after Awards

1) General

In addition to the requirements specified in other sections of the Technical Specificationfor equipment with auxiliaries, the Supplier shall submit the Drawings and documentswithin the submission due date specified in the VDR.

All drawings and documents shall be submitted within such periods or at such dateswhich are required for keeping the project schedule without any delay. The Supplier isresponsible for submitting all drawings and documents in accordance with the programallowing all participants sufficient time to check, assess, comment and eventuallyapprove the drawings and documents. The quality of the Supplier’s drawings anddocuments must be in accordance with acceptable international practice and allow aspeedy checking procedure. Drawings and documents not fulfilling these requirementswill be returned to the Supplier without any detail comment so that the Supplier shallimprove them and resubmit his revised drawings and documents. It is solely at thediscretion of the Purchaser to decide whether or not the drawings and documents areacceptable for project proceeding.

All drawings and documents shall be clearly demonstrated that the Supplier has

checked and verified them according to his quality assurance system and met thecontract requirements. Approver’s and checker’s name or initials must appear on alldrawings and documents.

The Purchase has the right to review and comment on all of the drawings anddocuments submitted by the Supplier. If the Supplier’s drawings and documents do notcomply with the contract requirements or not include sufficient technical information forverifying the correctness of the design on his supplied equipment, the Purchase willcomment the Supplier to revise and/or improve them. The Supplier shall resubmit hisdrawings and documents to be Purchaser after revising and improving them accordingto Purchaser’s comment.

2) Supplier’s reply sheets

The Supplier shall submit his reply sheets to the Purchase’s comments on theSupplier’s drawing together with the revised drawings reflected suitably thePurchaser’s comments on the drawings.

3) Master drawing list

The Supplier shall submit his master drawing list within two(2) weeks after receipt ofletter of intent (L/I) from the Purchaser, which includes all the necessary and requireddrawings and documents to be prepared and issued for execution of the Contractworks. The list shall show the calendar dates for first submission of the drawings anddocuments and those for certified / construction submission which will not affect theengineering, manufacturing, delivery and site activities in considering the duration ofPurchaser’s review and comments. The Purchaser may comment or adjust the dates




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for the Supplier’s certified and construction submission in view point of thePurchaser’s Project Schedule. The list shall be submitted by monthly-base in updatingthe submission status, including revision status, of drawing and documents.




ATTACHMENTS

1. General Technical Requirement

2) General Technical Requirement for General3) General Technical Requirement for Mechanical4) General Technical Requirement for Electrical5) General Technical Requirement for Instrument and Control

2. Bid Forms

3. Technical Schedule

4. Reference Drawings

1) Site Location Plan

2) Plant General Arrangement3) Key single line diagram4) Existing 33kV SLD (for reference)5) Existing 11kV SLD (for reference)6) Existing 33/11kV building arrangement plane - 9 sheets (for reference)

5. Vendor Document Requirements (VDR)

Date post:	03-Jun-2018
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RFQ-E-003 33,11kV Substation rA

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