VOLUME 3 OF 3

BIDDING DOCUMENT
PAYRA AREA ON TURNKEY BASIS.
VOLUME 3 OF 3
ICB No.: PGCB/GoB/Payra/2020/SS
BIDDING DOCUMENT FOR
AUGMENTATION OF 230KV PAYRA SUBSTATION FOR LOCAL ELECTRIFICATION OF PAYRA AREA ON TURNKEY BASIS.
INDEX TO VOLUMES
Volume 1 of 3 Section 1 - Instruction to Bidders Section 2 - Bid Data Sheet Section 3 - Evaluation and Qualification Criteria Section 4 - Bid Forms Section 5 - Eligible Countries Section 6 - Employer’s Requirements Section 7 - General Conditions of Contract Section 8 - Special Conditions of Contract Section 9 - Contract Forms Volume 2 of 3 Scope of Work Technical Specifications Drawings forming Part of Specifications Volume 3 of 3 Bid Forms Schedule A Introduction & Preamble to the Price & Technical Schedules Schedule B Bid Prices Schedule C Bar Chart Programme of Key Activities Schedule D Manufacturers, Places of Manufacture and Testing Schedule E Technical Particulars and Guarantees Schedule F Departure from Specifications Schedule G Proposed Alternative Standards to which Equipment shall Provided Schedule H Proposed Contract and Site Organization Schedule I Drawings and Documents to be Submitted with Bid Schedule J Proposed Subcontractors Schedule K Coefficient and Indices for Price Adjustment
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BIDDING DOCUMENT
FOR
AUGMENTATION OF 230KV PAYRA SUBSTATION FOR LOCAL ELECTRIFICATION OF PAYRA AREA ON TURNKEY BASIS.
(Contract No.: PGCB/GoB/Payra/2020/SS)
SCHEDULE A: INTRODUCTION & PREAMBLE TO THE
PRICE & TECHNICAL SCHEDULES
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BIDDING DOCUMENT FOR
Design, Supply, Installation, Testing and Commissioning of 400/230/132/33 kV Air
Insulated Switchgear Substation AT Payra on turnkey basis.
SCHEDULE A
BRIEF DESCRIPTION OF THE WORKS
BRIEF DESCRIPTION OF THIS BID : The salient features of the work covered by this Bid and Specification is outlined below, for 400 kV & 132 kV rated voltage Air Insulated Switchgear (AIS) and 33 kV rated voltage Gas Insulated Switchgear (GIS) substation plant and civil works.
This Bidding Document is for the design, manufacture, quality assurance, new packing for export, insurance and shipment to site, complete construction and installation, jointing, terminating, bonding, earthing, painting, setting to work, site testing and commissioning, warranty for a period of 365 days for all equipment, including all civil works.
The detailed requirements are listed in schedule A and price schedule this documents. The brief description of works under this contract is as follows:
Scope 1: 400/132kV Substation:
Design, supply, delivery, installation, testing & commissioning of Construction of two(2) 400kv line bay in order to connect two(2) 400kv double circuit line from nearby payra thermal power plant. 400kv switchgear will be common for both line and HV side of 400/132kv ,250/325MVA Transformer. There will not be any 400kv busbar in the substation. Existing 132kv bus is double busbar system. This bus shall be extended for 4(four) bays in order to accommodate two(2) incomers from 400/132kv transformer and two(2) HV side of 132/33kv,80/120MVA transformer. Extension direction marked in the drawing.
Design, supply, delivery, installation and testing & commissioning of 2 X 400/132kV,250/325 MVA auto transformer, 2 X 132/33 kV, 80/120MVA transformer and and one 33/0.4 kV, 500KVA outdoor type earthing transformers connected to one of 400/132/33 kV transformer tertiary side; and
Outdoor type 36kV VCB with CT, LA, DS for earthing transformer to connect with tertiary side of one Auto transformer. Associated control, protection, substation automation, fiber optic multiplexer equipment for communication & protection, DFDR and civil works are also under scope of work of this bid.
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Scope 2: 33kV Indoor GIS Switching Station:
Design, supply, delivery, installation, testing & commissioning of a complete new indoor type 33 kV GIS switching station consisting 8(eight) 33kV outgoing line bays with single busbar to accommodate two 33kV side of 132/33 kV, 80/120MVA power transformers, eight 33kV line feeder & one(1) 33/.415kV aux. transformer bays in order to facilitate 33kV Switching station(Distribution Part) auxiliary power supply; space provision shall be kept for future extension of six(6) outgoing 33kV bays.
Design, supply, delivery, installation and testing & commissioning of one 33/0.4 kV, 500KVA outdoor type auxiliary transformers.
Associated control, protection and civil works are also under scope of work of this bid.
Scope 3: Construction of Transmission Line:
Design, supply, delivery, installation, testing & commissioning of Construction of approximate. 1.2 km 400kV double circuit transmission line with twin Finch conductor from Payra power station complex to PGCB switching station/Substation.
The Contractor is responsible for ensuring that all and any items of work required for the safe, efficient and satisfactory completion and functioning of the works, are included in the Bid price whether they be described in the specification or not. This Bid provides for all parts of the works to be completed in every respect for commercial operation to the requirements of the Engineer. All details, accessories etc. required for the complete installation and satisfactory operation of the works not specifically mentioned in this Specification are deemed to be included in the contract price. The successful Bidder will be expected to complete the construction programme with the least possible interruption to the existing supply and no existing substation power supply will be allowed completely interrupted during works being completed under this contract.
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SCHEDULE A
REQUIREMET
The equipment to be designed, supplied, installed, tested & commissioned as stipulated in bid specification and shown in bid drawings: Item Description Scope 1 400/132kV Substation 1A 420kV Air Insulated Switchgear (AIS)
The 420kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings; shall comprise the following:-
1A1 Two (2) sets of 420kV, 4000A, 63kA/1sec, 50Hz, 1425kVp BIL, live tank type, single
pole operated with electrical gang operation, SF6 gas circuit breakers with spring- stored energy operating mechanism. CSD (Control Switching Device) is required transformer switching which shall have to be considered for 400kV circuit breaker.
1A2 Two (2) sets of Disconnector 420 kV with Earthing Switch, 4,000 A, 63 kA / 1 sec, 50
Hz, 1,425 / 1,050 kV BIL, three pole, three column, double break, post type, motor operated disconnectors with motor-operated earthing switches, equipped with 3 + 3 motor & manual operating mechanism. (for Transformer bays).
1A3 Six(6) nos. of 420 kV, single-phase, oil insulated, hermetically closed, head type, 6-core,
multi ratio, 4,000-2000-1000/1A, 63 kA / 1 sec, 50 Hz, 1,425 / 1,050 kV BIL, post type current transformer.
1A4 Six(6) nos. of 420 kV, single-phase, oil insulated, hermetically closed, 3-secondary
winding, 400/V3 / 110/V3 / 110/V3 / 110/V3 kV/V/V/V, 63 kA / 1 sec, 50Hz, 1,425 / 1,050 kV BIL, capacitor type voltage transformers.
1A5 Twelve (12) nos. of 420 kV, single phase, heavy duty station class, gapless, metal oxide
type, Ur = 336 kV, Uc = 268 kV, 10 kA nominal discharge current, 50 Hz Calculation shall be required during design for confirmation.
1A6 One (1) lot of flexible bus conductors, insulators, fittings including all necessary clamps
and connectors required for completing switchgear connection as specified in the technical specifications and bid drawings.
1A7 One (1) lot of steel structures for gantry and equipment supports required for completing
switchgear connection as specified in the technical specifications and bid drawings.
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1B 145kV Air Insulated Switchgear (AIS)
The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings; shall comprise the following:-
1B1.1 Two (2) set of 145kv, 2500A, 40kA/1sec, 50Hz, 650kVp BIL, live tank type, gang
operated SF6 gas circuit breakers with spring-stored energy operating mechanism 1B1.2 Two (2) set of 145kv, 1250A, 40kA/1sec, 50Hz, 650kVp BIL, live tank type, gang
operated SF6 gas circuit breakers with spring-stored energy operating mechanism 1B2.1 Two (2) set of 2500A, 40kA/1sec, 50Hz, 650kVp BIL, double side break, post type,
motor operated disconnectors with manual earthing switch 1B2.2 Four (4) set of 2500A, 40kA/1sec, 50Hz, 650kVp BIL, double side break, post type,
motor operated disconnectors without earthing switch 1B2.3 Six (6) set of 1250A, 40kA/1sec, 50Hz, 650kVp BIL, double side break, post type, motor
operated disconnectors without earthing switch 1B3.1 Six (6) nos. of single-phase, 4-core, multi ratio, 145kV, 40kA/1sec, 50Hz, 650kVp BIL,
post type current transformer for transformer circuit bays.(1600-800/1-1-1A, 5P20 30VA & 1600-800/1A, 10VA, 0.2s class).
1B3.2 Six (6) nos. of single-phase, 4-core, single ratio, 145kV, 40kA/1sec, 50Hz, 650kVp BIL,
post type current transformer for transformer circuit bays.(1250/1-1-1A, 5P20 30VA & 1250/1A, 10VA, 0.2s class).
1B4.1 Six (6) nos. of single-phase, 2-core, 145kV, 40kA/1sec, 50Hz, 650kVp BIL Capacitive
voltage transformers (CVT). 1B4.2 Six (6) nos. of single-phase, 2-core, 145kV, 40kA/1sec, 50Hz, 650kVp BIL inductive
voltage transformers (IVT). 1B5 Eighteen (18) nos. of 120kV rated voltage, 102kV(rms) continuous operating voltage at
500c, 10kA nominal discharge current, 50Hz, Heavy duty station class, gapless metal oxide type, single phase surge arresters.
1B6 Six (6) nos. of post insulator 145 kV, single phase, 40 kA / 1 sec, 50 Hz, 1,425 / 1,050
kV BIL. 1B7 One (1) lot of 132 kV Conductor, clamps & connectors for Jumper & equipment
connection, for extension of existing double busbar system and for connection of the132 kV switchgear equipment.
1B8 One (1) lot of insulators and fittings including all necessary accessories required to
complete 132kV switchyard
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1B9 One(1) lot of steel structures for gantry and equipment supports including nuts & bolts
and cable tray including all necessary fitting & fixing accessories required to complete 132kV switchyard.
1C Power Transformers & Auxiliary Transformers 1C1 Two (2) sets of 400/132/33kV, 250/325 MVA (ONAN/ONAF), three phase outdoor type
auto power transformers with associated bushing CTs including all necessary connections, insulators & fittings.
1C2 Two (2) sets of 132/33kV, 80/120 MVA (ONAN/ONAF), three phase outdoor type
power transformers with associated bushing CTs including all necessary connections, insulators & fittings.
1C3 One (1) sets 33k/0.4kV, 500kVA earthing Transformer with associated steel support
structures including all necessary connections, insulators & fittings. One (1) set with neutral earthing resistor rated 100A.
1C4 Two (2) sets Nitrogen injection power transformer protection. 1D 33kV Air Insulated Switches 33kV Air Insulated Switches and Connection for 300KVA Auxiliary Transformers 1D1 One (1) set of Circuit breaker 36 kV, 630 A, 25 kA/ 1 sec, 50 Hz, 170/70 kV BIL, three
pole (gang operated), vacuum circuit breaker, for outdoor installation, equipped with one spring-stored energy operating mechanism.
1D2 One (1) set of 36 kV, 630 A, 25 kA / 1 sec, 50 Hz, 170 / 70 kV BIL, three pole, vertical
break, post type, horizontal or wall mounted, manually operated disconnectors. 1D3 Three (3) nos of 36 kV, single-phase, 3-core, single ratio, 630/1A, 25 kA/1 sec, 50 Hz,
170 / 70 kV BIL, post type current transformer. 1D4 Three (3) nos of 36 kV, single-phase, 2-secondary winding, 33/V3 / 110/V3 / 110/V3
kV/V/V, 25 kA / 1 sec, 50 Hz, 170 / 70 kV BIL, inductive type voltage transformers. 1D5 Nine (9) nos. of 30kV rated voltage, 10kA nominal discharge current, 50Hz, Heavy duty
station class, single phase surge arresters. 1E Control, Protection, Substation Automation & Metering
420 kV Circuits
The equipment to be designed, supplied, installed and commissioned is shown in bid
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drawings are comprising of :-
1E1 Two(2) sets of Complete Control, Protection Metering & SAS of 400 kV Overhead Line
circuits, including Control & Protection Cubicles 1E2 Two(2) sets of complete Control, Protection Metering & SAS system for 400/132/33kV
transformer and earthing transformer including tap changer control (HV Side)
132 kV Circuits
1E3 Two(2) sets of Complete Control, Protection Metering & SAS system for 400/132/33kV transformer including tap changer control (LV Side)
1E4 Two(2) sets of Complete Control, Protection Metering & SAS system for 132/33kV
transformer including tap changer control (HV Side)
33 kV Circuits
The equipment to be supplied, installed and commissioned is shown in bid drawings are comprising of:-
1E5 Two(2) sets of Complete Control, Protection Metering & SAS system for 132/33kV
transformer including tap changer control (LV Side) 1E6 One (1) sets of Control, protection and SAS for 33/0,4 kV Auxiliary Transformer circuits,
including Control & Protection Cubicle. 1E7 Tariff metering including panel to accommodate programmable & recordable digital 3-
phase, 4-wire import and export MWh and MVArh meters (accuracy class 0.2s) for 420 kV line and transformer feeder (for each voltage level) , 132 kV transformer feeders for each voltage level) and Auxiliary transformers. For each feeder minimum two meters (main & check) from different manufacturer. The scope of works also includes supply of software(s) & connection cords of the above energy meters for future re-configuration.
1E8 One(1) lot of Integration with existing SAS (Manufacturer: Siemens ,Germany). 1F Power Cables & Cable Termination
1F1 132 kV XLPE, 2000sqmm cu cables & cable termination for connecting 132kV side of two (2) 420/132/33kV transformer to 132kV Bus.
1F2 33 kV XLPE, 800sqmm cu cables & cable termination for connecting 33kV side of two
(2) 132/33kV transformer to 33kV GIS. 1F3 33 kV XLPE, 185sqmm cu cables & cable termination for connecting tertiary side of
420/132/33kV transformer to 33/0.4kV station auxiliary transformer.
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1G Multicore Cable 1G1 One (1) lot complete set of multicore low voltage 0.6/1.1kV, XLPE insulated power and
control cables (IEC 60502) shall be supplied, installed, glanded, terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract. The cable routing and core schedules shall also be provided.
1H Earthing and Lightning Protection 1H1 One (1) lot of extension of earthing and lightning Protection. 1I Civil Works, Building and Foundation
Complete Civil Works, Building and Foundation shall be as per quantity mentioned in Schedule B.
1J Lighting, Small Power, Air Conditioning and Ventilation 1J1 One (1) lot of complete set of design, supply, installation and commissioning of
equipment to provide lighting (flood light LED type) for security, roadway, switchyard and emergency DC lighting at strategic locations for equipment operation and inspection.
1K Fibre Optic Multiplexer Equipment for Communication and Protection One (1) lot of design, supply, installation and commissioning for extension of existing
fibre optic multiplexer & communication equipment (AREVA, France made MSE 5001 type) and necessary works to interface with existing system is to be provided to accommodate new bays.
Underground optical fibre cables (24cores) from terminal box gantry structure at 400kV
transmission line termination point to MDF (Main distribution Frame) to be installed in control room. The Contract includes supply and installation of MDF and pigtail cables with adequate length. One (1) additional outdoor joint box for OPGW shall be supplied under this contract.
1L SCADA system for Telecontrol and Telemetering One (1) lot of Integration with existing SCADA to provide the telecontrol & telemetering
facilities required both at the existing National Load Despatch Center (NLDC) at Aftabnagar and Back up station at Biddut Bhaban. All required electrical signals shall be transmitted to the NLDC and Back up station at Biddut Bhaban through the Industrial Gateway of the substation automation system. All HV breakers, motorized disconnectors, tap changer, etc. shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870-5-104 protocol. All necessary modification works in the software of master station of NLDC and Back up station at Biddut Bhaban are to be carried out.
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1M 1 & 2 Mandatory Spares, Erection & Test Equipment
Supply of complete spares and spare parts of transformer, switchgear, control equipment, protection relays, meters, erection & test equipment as per quantity mentioned in Schedule B.
Scope 2 33kV Switching Station
2A 33 kV Indoor Type Gas Insulated Switchgear (GIS)
The 33 kV indoor type GIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and shall comprise the following:-
2A1 Eight (8) sets 33kV overhead line circuit bays (2000A), 31.5kA/1sec, 50Hz, 170kVp BIL
including main connections (termination of underground XLPE cable, 800sqmm,cu at GIS bay end) including protection and control requirements.
2A2 Two (2) sets 132/33 kV Transformer incomer circuit bays (2500A), 31.5kA/1sec, 50Hz,
170kVp BIL including main connections (termination of underground XLPE cable, 800sqmm (4 run), cu at GIS bay end) including protection and control requirements.
2A3 Single Busbar (3000A), 31.5kA/1sec, 50Hz, 170kVp BIL with two (2) Bus VT and ES
including main connections, protection and control requirements in One(1) lot. 2A4 One (1) set Bus Sectionalizer circuit bay (3000A), 31.5kA/1sec, 50Hz, 170kVp BIL
including main connections, protection and control requirements. 2A5 One (1) set 33kV 500KVA Auxiliary Transformer, 31.5kA/1sec, 50Hz, 170kVp BIL
including main connections (termination of underground XLPE cable, 800sqmm,cu at GIS bay end), protection and control requirements.
33kV Air Insulated Switches and Connection for 300KVA Auxiliary Transformers 2A6 Three (3) nos. of 30kV rated voltage, 10kA nominal discharge current, 50Hz, Heavy duty
station class, single phase surge arresters. 2A7 One (1) lot of conductors 36 kV, for connection of the 36 kV switchgear, 630 A, 31.5 kA
/ 1 sec, 50 Hz, 170 / 70 kV BIL, three phase. 2A8 One (1) lot of insulators and fittings including all necessary clamps and connectors
required for completing 36 kV switchgear. 2A9 One(1) lot of gantry steel structures and equipment supports required for completing 36
kV switchgear.
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2B Power Transformers & Auxiliary Transformers 2B1 One (1) set 33k/0.4kV, 500kVA earthing Transformer with associated steel support
structures including all necessary connections, insulators & fittings. 2C Control, Protection, Substation Automation & Metering 33 kV Circuits
The equipment to be supplied, installed and commissioned is shown in bid drawings are comprising of:-
2C1 Eight(8) set of Control, Protection, metering and SAS for 33kV bays 2C2 One (1) set of Control, protection and SAS for 33/0,4 kV Auxiliary Transformer circuits,
including Control & Protection Cubicles 2C3 Tariff metering including panel to accommodate programmable & recordable digital 3-
phase, 4-wire import and export MWh and MVArh meters (accuracy class 0.2s) for 33 kV line and Auxiliary transformer feeders. For each feeder minimum two meters (main & check) from different manufacturer. The scope of works also includes supply of software(s) & connection cords of the above energy meters for future re-configuration.
2C4 One(1) lot of Integration with existing SAS (Manufacturer: Siemens ,Germany). 2D Power Cables & Cable Termination
2D1 33 kV XLPE, 185sqmm cu cables & cable termination for connecting 33/0.4kV station
auxiliary transformer with 33kV GIS auxiliary transformer bay. 2E Multicore Cable 2E1 One (1) lot complete set of multicore low voltage 0.6/1.1kV, XLPE insulated power and
control cables (IEC 60502) shall be supplied, installed, glanded, terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract. The cable routing and core schedules shall also be provided.
2F Earthing and Lightning Protection 2F1 One (1) lot of complete earthing and lightning Protection. 2G Batteries, Chargers and DC Distribution 2G1 110V substation NiCad batteries complete with chargers and distribution switchboard to
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be supplied, installed and commissioned to provide all DC supplies to equipment being supplied.The system shall generally be as shown in bid drawing and shall include:
Two (2) sets of 100% batteries complete, each capacity shall not be less than 330Ah at the 5-hour rate of discharge for 33kV switchyard. During execution stage the battery capacity shall be confirmed with calculation by the contractor considering the bays under scope of work and future bays as per clause 8.4.3 of section 8 of Volume 2 of 3 of the biding document. The battery with higher capability if required after calculation shall be supplied by the Contractor within the same Contract price.
2G2 Two (2) sets of battery chargers complete, each float charge shall not be less than 90A rating for 33kV switchyard. The charger rating shall be based on the load & boost charging rate and during execution stage after calculation if the higher charging charger is found to be required, it shall be supplied by the Contractor within the same Contract price.
2G3 One (1) lot of DC distribution board. The DC distribution board shall be with 25% overall spare switches for future use. 110V DC system and distribution equipment shall be located in the 33KV GIS control building.
2G4 48V DC system and distribution equipment to be supplied, installed and
commissioned in the 33KV GIS control building for the new fibre optic multiplexer equipment for communication and protection. One set shall be used as standby supply. The system shall generally be as shown in bid drawing and shall include: Two (2) sets of 100% batteries complete, each capacity shall not be less than 150 Ah at the 5-hour rate of discharge
During execution stage the battery capacity shall be confirmed with calculation by the contractor considering the bays under scope of work and future bays as per clause 8.4.3 of section 8 of Volume 2 of 3 of the biding document. The battery with higher capability if required after calculation shall be supplied by the Contractor within the same Contract price.
2G5 Two (2) sets of battery chargers of output 48V DC, 50A and input voltage three phase 50Hz, 415 V AC.
The charger rating shall be based on the load & boost charging rate and during execution stage after calculation if the higher charging charger is found to be required, it shall be supplied by the Contractor within the same Contract price.
2G6 One (1) lot of DC distribution board. The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 25% overall spare switches for future use.
48V DC system and distribution equipment shall be located in the 33KV GIS control building.
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2H LVAC Distribution 2H 1 One (1) lot of LVAC switchboard for substation services to be supplied, installed and
commissioned, to provide 415/240V supply. LVAC Distribution shall be located in the 33KV GIS control building.
2H2 One (1) Nos. of 125A weather-proof socket. 2H3 One(1) lot of Tariff metering to accommodate programmable & recordable digital
3-phase, 4-wire import and export MWh and MVArh meters (accuracy class 0.2) for two 33/0.415 kV station auxiliary transformer feeder circuits. For each feeder minimum two meters (main & check).
2I Civil Works, Building and Foundation
Complete Civil Works, Building and Foundation shall be as per quantity mentioned in Schedule B.
2J Lighting, Small Power, Air Conditioning and Ventilation 2J1 One (1) lot of complete design, supply, installation and commissioning of equipment to
provide lighting, LV power supply, air conditioning system, ventilation system and emergency DC lighting for the 33KV GIS control building..
2J2 One (1) lot of complete set of design, supply, installation and commissioning of
equipment to provide lighting (flood light LED type) for security, roadway, switchyard and emergency DC lighting at strategic locations for equipment operation and inspection.
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SCHEDULE A
REQUIREMET of Transmission Line
The equipment to be designed, supplied, installed, tested & commissioned as stipulated in bid specification and shown in bid drawings: Item Description Scope 3 400 Transmission Line
Design, supply, delivery, installation, testing & commissioning of Construction of approximate. 1.2 km 400kV double circuit transmission line with twin Finch conductor from Payra power station complex to PGCB switching station/Substation. Conductor, Earthwire, OPGW & Disc Insulators will be supplied by PGCB during execution. Tower design will be supplied by PGCB. For item detail Please refer to the Price Schedule of this document. For detail technical specification please see the Volume 2 of 3(Transmission Line Part).
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1.1 Circuit Breaker 420kV
Standards
1.3 Isolating and quenching medium SF6
1.4 Type of circuit breaker Outdoor 1.5 Design Double breaking 1.6 Operating mechanism Motor-wound spring 1.7 Number of poles pcs. 3 (1 per phase)
1.8
pcs.
1.8 Control Switching Device pcs. 3 (1 per phase)
2. Circuit Breaker – Characteristics 2.1 Nominal system voltage kV rms 400 2.2 Highest voltage for equipment Un kV rms 420 2.3 Rated lightning impulse withstand
voltage kV peak 1425
kV 1050
2.5 Rated frequency fr Hz 50 2.6 Rated current Ir A ≥ 4000 2.7 Rated short-circuit breaking current
Isc
Rated peak withstand current Ip (equal short- circuit making current)
kA
≥ 125
2.9
%
2.11 Rated operating sequence O-0.3 s-CO-3 min- CO
2.12 Duration of short-circuit s ≥ 1 2.13 Rated out-of-phase breaking current kA Insert 2.14 Auto reclosing 1p+3p
2.15
ms
≤ 60
2.16
ms
20 ± 5
2.17 Maximum time interval between opening of first and last phase of three-phase circuit breakers
ms 3
Class
C2
2.19
CO atno-load
≥ 10000
Class M2
2.21 Rated electrical endurance Class Min E1 2.22 Rated mechanical terminal loads 2.22.1 Static horizontal force, longitudinal
FthA N ≥ 1750
N ≥ 1250
2.22.3 Static vertical force Ftv N ≥ 1500 3. Circuit Breaker - Design and Construction
3.1 Circuit Breaker 3.1.1 Insulator material Porcelain 3.1.2 Minimum creepage distance mm/kV Min. ≥ 25 3.1.3 HV terminal pcs. 2 3.1.3.1 Shape Flat 3.1.3.2 Dimensions mm x mm Min 200 x 100 3.1.3.3 Number of holes Min 8 3.1.3.4 Dimensions of holes mm Ø 14 3.1.3.5 Distance between holes mm 50 3.1.3.6 Material suitable for Al terminal 3.2.1 Motor - auxiliary supply voltage V. AC 230/415 3.2.2 Control voltage V. DC 110 3.2.3 Number of making coils pcs. 1 3.2.4 Number of breaking coils pcs. 2 3.2.5 Heater Yes 3.2.6 Heater supply voltage V. Hz 230. 50
3.2.7
12NO+12NC+1V
IP54
3.2.9 Operating mechanism material Al or stainless steel 3.2.10 A crank for manual spring loading Yes 3.3 Accessories in central control panel 3.3.1 Anti-pumping relay Yes 3.3.2 Local/remote control selector switch Yes 3.3.3 Local operation push buttons Yes 3.3.4 Minimum pressure lock-out and
alarm relays Yes
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Hz 3.3.6 Lighting switch Yes 3.3.7 Lighting - 230 V, 50 Hz Yes 3.3.8 Heater - 230 V, 50 HZ Yes 3.3.9 Operation counter Yes
3.3.10
Motor MCB (miniature circuit breakers) (for all operating mechanisms)
Yes
3.3.12
IP54
Yes
3.3.14
Yes
3.3.15
Set of cables for connection of operating mechanism and central control panel of circuit breaker
Yes
3.3.16 Galvanized horizontal and vertical metal structure with minimum 70 μm zinc layer
Yes
No.
Description
Design Three column Double
1.6 Type of main blade operating mechanism
Motor driven
pcs. 3
Not applicable
0
2. Disconnector - Characteristics 2.1 Nominal system voltage kV rms 400 2.2 Highest voltage for equipment Un kV rms 420 2.3 Rated lightning impulse withstand
voltage kV peak
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voltage 2.5 Rated frequency fr Hz 50 2.7 Rated current Ir A ≥ 4000 2.8 Rated short withstand current Ik kA rms ≥ 63 2.9 Rated duration of short-circuit on
main blades s 3
s Not applicable
2.12
Capacity of making and breaking transfer load of busbar system at 300 V (rms)
A
1600
circuits V d.c. 110
Hz 230 / 50
2.14 Mechanical endurance Class M2 2.15 Rated mechanical terminal loads of
terminals
2.15.1 Direct loading, static Fa N > 2000 2.15.2 Transversal loading, static Fb N > 660 2.15.3 Vertical force Fc N > 1500 2.15.4 Direct loading, dynamic N > 4500
3. Disconnector - Design and Construction
3.1 Disconnector 3.1.1 Insulator material Porcelain, brown 3.1.2 Minimum creepage distance mm/kV Min. ≥ 25 mm/kV 3.1.3 Quality of insulator Min. C130 3.1.4 Rated failing load of insulator (C10) N Min. 10000 3.1.5 HV terminals 3.1.5.1 Shape Flat 3.1.5.2 Dimensions mm x
mm Min 200 x 100
3.1.5.3 Number of holes Min 8 3.1.5.4 Dimensions of holes mm Ø 14 3.1.5.5 Distance between holes mm 50 3.1.5.6 Material suitable for Al terminal 3.2 Operating mechanism 3.2.1 Number of operating mechanism pcs. 3
3.2.2
12NO+12NC
3.2.3 Motor - auxiliary supply voltage V, DC 110 3.2.4 Heater, 230 V, 50 Hz Yes 3.2.5 Water-tight corrosion-resistant
housing IP54
3.2.7 Manual closing button Yes 3.2.8 Manual opening button Yes
3.2.9
Yes
3.2.11 Voltage presence controller Yes 3.2.12 Motor MCB (miniature circuit
breakers) Yes
Yes
3.2.14
Yes
3.2.15 Equipotential bonding rails Yes 3.2.16 Housing of Al or stainless steel Yes
Overall compliance with the requirements (yes/no)
1.3 Disconnector 420 kV, with Earthing Switch
No.
Description
Design Three column, Double
1.6 Type of main blade operating mechanism
Motor driven
pcs. 3
Motor driven
3
kV 1050
2.5 Rated frequency fr Hz 50 2.7 Rated current Ir A ≥ 4000 2.8 Rated short withstand current Ik kA rms ≥ 63 2.9 Rated duration of short-circuit on
main blades s 3
s
3
SA -20
2.12
Capacity of making and breaking transfer load of busbar system at 300 V (rms)
A
1600
circuits V d.c. 110
Hz 230 / 50
terminals
3.1 Disconnector 3.1.1 Insulator material Porcelain, brown 3.1.2 Minimum creepage distance mm/kV Min. ≥ 25 mm/kV 3.1.3 Quality of insulator Min. C130 3.1.4 Rated failing load of insulator (C10) N Min. 10000 3.1.5 HV terminals 3.1.5.1 Shape Flat 3.1.5.2 Dimensions mm x
mm Min 200 x 100
3.1.5.3 Number of holes Min 8 3.1.5.4 Dimensions of holes mm Ø 14 3.1.5.5 Distance between holes mm 50 3.1.5.6 Material suitable for Al terminal 3.2 Operating mechanism 3.2.1 Number of operating mechanism pcs. 3+3
3.2.2
12NO+12NC
housing IP54
3.2.9
Yes
breakers) Yes
Yes
3.2.14
Yes
SA -21
A 1.4: Earthing Switch 420 kV
No.
Minimum Requirements Unit Data
1. Disconnector- General 1.1
Standards IEC 62271-102, 60273,
60694, 60815 1.2 Quality control ISO 9001, 14001, 18001 1.3 Type of disconnector Outdoor 1.4
Design Single column, vertical
1.6 Type of earthing blade operating mechanism
Motor driven
3
voltage kV
peak 1425
kV 1050
2.5 Rated frequency fr Hz 50 2.6 Rated short withstand current Ik kA rms ≥ 63 2.7 Rated duration of short-circuit on
earthing blades s 3
kA ≥ 125
circuits V d.c. 110
230 / 50
terminals
3.1 Disconnector 3.1.1 Insulator material Porcelain, brown 3.1.2 Minimum creepage distance mm/kV Min. ≥25 mm/kV 3.1.3 Quality of insulator Min. C130 3.1.4 Rated failing load of insulator (C10) N Min. 10000
SA -22
3.1.5 HV terminals 3.1.5.1 Shape Flat 3.1.5.2 Dimensions mm x
mm Min 200 x 100
3.1.5.3 Number of holes Min 8 3.1.5.4 Dimensions of holes mm Ø 14 3.1.5.5 Distance between holes mm 50 3.1.5.6 Material suitable for Al terminal 3.2 Operating mechanism 3.2.1 Number of operating mechanism pcs. 3
3.2.2
12NO+12NC
housing IP54
3.2.9
Yes
breakers) Yes
Yes
3.2.14
Yes
3.2.15 Equipotential bonding rails Yes 3.2.16 Housing of Al or stainless steel Yes
A 1.5: Current Transformers 420 kV
No.
Description
1. Current Transformers - General 1.1. Standards IEC 60044-1 1.2 Quality control ISO 9001 1.3 Type Outdoor 1.4 Shape / design Head type 1.5 Sealing Hermetically closed
2. Current Transformers - Characteristics 2.1 Nominal system voltage kV rms 400 2.2 Highest voltage for equipment Un kV rms 420 2.3 Rated lightning impulse withstand
kV 1050
SA -23
2.5 Rated frequency fr Hz 50 2.6 Rated short-time thermal current Ith,
1 s kA 63
Rated continuous thermal current (40°C):
I core
II core
design
2.11
Vcore
design 2.13 Rated mechanical terminal loads Class Min. Class II
3. Current Transformers - Design and Construction
3.1 Insulator material Porcelain, brown
3.2 Insulating medium Oil-paper
3.4
Max. radio interference voltage at 0.5-2 MHz (acc. IEC 60694)
μV
Test voltage1.2*UM/√3 Test voltageUM
pCp C
Max. ≤ 5
≤ 10
3.7 Min. LV enclosure protection IP54 3.8 HV terminals 3.8.1 Shape Flat 3.8.2 Position Horizontal 3.8.3 Dimensions mm x
mm Min 200 x 100
3.8.4 Number of holes Min 8 3.8.5 Dimensions of holes mm Ø 14
3.8.6 Distance between holes mm 50
3.8.7 Material suitable for Al terminal 3.10 tgδ test terminal Yes 3.11 Oil drain cock and sampling device Yes 3.13 Secondary reconnection Yes
3.14
Outdoor metal part made of aluminium or stainless steel
Yes
No.
Description
Standards
1.5 Sealing Hermetically closed
2. Voltage Transformers - Characteristics 2.1 Nominal system voltage kV rms 400 2.2 Highest voltage for equipment Un kV rms 420 2.3 Rated lightning impulse withstand
kV 1050
2.5 Rated frequency fr Hz 50 2.6 Rated short-time thermal current Ith,
1 s kA 63
2.7 Rated dynamic current Idyn kV peak 125 2.8 Rated primary voltage kV 200/√3
SA -25
0.2
VA
VA
25
75 75
2.12 Load Simultaneously 2.13 Voltage factor p.u./s 1.5/30 2.14 Rated mechanical strength Class Min. Class II
2.15
kV rms
3.1 Insulator material Porcelain, brown
3.2
3.3 Minimum creepage distance mm/kV Min. ≥ 25 mm/kV 3.4
Max. radio interference voltage at 0.5-2 MHz (acc. to IEC 60694)
μV
pCpC
≤ 10
3.7 Min. LV enclosure protection IP54 3.8 HV terminals 3.8.1 Shape Flat 3.8.2 Position Vertical or horizontal 3.8.3 Dimensions mm x
mm Min 200 x 100
3.8.4 Number of holes Min 8 3.8.5 Dimensions of holes mm Ø 14 3.8.6 Distance between holes mm 50 3.8.7 Material suitable for Al terminal 3.10 Oil drain cock and sampling device Yes
3.11
Yes
3.13 Outdoor metal part made of aluminium or stainless steel
Yes
A 1.7: Surge Arresters420 kV
SA -26
1. Surge Arresters - General 1.1 Standards IEC 60099-4 1.2 Quality control ISO 9001 1.3 Design Metal oxide, gapless, outdoor
2. Surge Arresters - Characteristics 2.1 Nominal system voltage kV rms 400 2.2 Highest voltage for equipment Un kV rms 420
2.4
kV rms
design
2.5
kV rms
269 Calculation is required during
design 2.8 Rated frequency Hz 50 2.9 Nominal discharge current In (8/20
μs) kA peak 10
kA peak 100
3.1 Line discharge class
design
3.2 Energy dissipation capacity (per kV of rated voltage) kJ/kV ≥ 6.5
3.3 Long duration current impulse (2000 μs)
A ≥ 1200
3.4.1
kV peak
3.4.2 For switching impulse current 30/60 μs at 1 kA
kV peak ≤ 700
3.4.3 For switching impulse current 30/60 μs at 2 kA
kV peak ≤ 725
3.4.4 For lightning impulse current 8/20 μs at 5 kA
kV peak ≤ 775
kV peak ≤ 825
kV peak ≤ 900
3.5.1
Lightning impulse withstand voltage of arrester housing up (1.2/50 μs)
kV
≥ 1500
3.5.2 Power frequency withstand voltage of arrester housing (1 min wet)
kV ≥ 750
3.6. Mechanical requirements 3.6.1 Specified short-term load SSL (Fdyn) N ≥ 1000 3.6.2 Specified long-term load SSL (Fstat) N ≥ 750 3.7 Minimum creepage distance mm/kV ≥ 25 mm/kV 3.8. Housing insulating material Composite/Silicon
SA -27
mm Min 100 x 100
3.10.3 Number of holes Min 4 3.10.4 Distance between holes mm x
mm 50 x 50
132KV Outdoor Switchgear 145kV Class Circuit Breakers
1 Type Outdoor, SF6 insulated, live tank type
2 Standard IEC 62271-100
4 Rated short-duration power frequency withstand voltage (1 min.)
- Between line terminal and ground - Between terminals with CB open - Between terminals with isolator open
275 kV rms 275 kV rms 315 kV rms
5 Rated lightning impulse withstand voltage - Between line terminal and ground - Between terminals with CB open - Between terminals with isolator open
650 kV peak 650 kV peak 750 kV peak
6 First pole to clear factor 1.3
7 Rated current - 400/132KV transformer Incomer - 132/33KV transformer bay
2500 A 1250 A
8 Rated short circuit breaking current 40 kA rms
9 Rated short circuit making current 100 kA peak
10 Short time withstand current for 1 sec. 40 kA rms
11 Max. radio interference voltage for frequency between 0.5MHz and 2MHz in all positions
500 micro V (at 92 kV rms)
12 Total closing time Not more than 100 ms
13 Total breaking time 60 ms
SA -28
16 Reclosing Single phase & Three phase auto-reclosing
17 Creepage distance 25 mm/kV
18 Number of closing coils 1
19 Number of tripping coils 2
20 Number of auxiliary contacts for: - Making - Breaking - Middle position
Min. 12 Min. 12 0
21 Protection class IP55
145kV Class Isolators and Earthing Switch 1 Type Outdoor,Double side
break
- Toearth 275 kV rms - Across isolatingdistance 315 kV rms
5 Rated lightning impulse withstand voltage
Toearth Across isolatingdistance
7 Rated short circuit current (1th), 1s 40 kA rms
8 Rated short circuit current (ldyn) 100 kA peak
9 Creepage distance of insulator 25 mm/kV
10 Operating mechanism of isolator/ earthing switch AC motor operated
11 Number of auxiliary contacts for main switch
Making Breaking
- Making Min. 10
- Breaking Min. 10
- Middleposition Min. 1
SA -29
13 Radio interference level for 0.5 MHz to 2 MHz 500 micro V (at 92 kV rms)
6.1 Instrument Transformers
2 Power frequency withstand voltage (1 min.) 275 kVrms
3 Radio interference level for 0.5 MHz to 2 MHz
1000 micro V (at 92 kVrms)
4 Partial discharge level 10 pC
5 Type of insulation Class A
145kV Class Current Transformers
2 Ratio 1600-800/1/1/1/1A(for 400/132KV transformer Incomer bay)
1250/1/1/1/1A(for 132/33KV transformer bay)
4 Burden(VA) 30
5 Min. knee point voltage at lowest ratio(Volts) 600 and over ( to be finalized after sizing calculation during execution of the project
6 Max. magnetizingcurrent guaranteed at knee point voltage & the lowest ratio(mA)
M.R.
7 Max. resistance of secondary winding at 75 0C and at lowest ratio(ohms)
M.R.
145kV Class Voltage Transformer 1 Rated voltage levels 145 kV
2 High frequency capacitance for entire carrier frequency range
Within 80% to 150% of ratedcapacitance
3 Rated Voltage Factor 1.2 continuous;1.5 for 30 seconds
4 Rated total capacitance(pF) 4400, +10% and -5%
5 Phase angle error (minutes) 20
SA -30
6 Acceptable limit of variation of total capacitance over the entire carrier frequency range
+ 50% and -20% of the rated capacitance
7 Equivalent series resistance over the entire carrier frequency range or temperature range (ohms)
Less than 40
8 Stray capacitance and stray conductance of low voltage terminal over the entire capacitance.
As per IEC
10 Purpose Protection Metering
12 Burden (VA) 50 25
13 Class of accuracy 3P 0.2
14 Rated total thermal burden(VA) 150 150
15 One minute power frequency withstand voltage between LV terminal and earth(kV rms)
4(10 if the low voltage terminal is exposed)
16 Withstand voltage for secondary winding (kV rms)
2
2 Type Outdoor type, ZnO, Gapless
5 Max. continuous operating voltage 102kVrms 25kVrms
6 Nominal discharge current 10kA 10kA
7 Discharge class Heavy duty 3
Heavy duty 3
9 Leakage current detector Yes Yes
33KV Outdoor Switchgear 1.1 33kV Class Circuit Breakers
1 Type Outdoor type VCB
70 kV rms
6 First pole to clear factor 1.5
7 Rated current 630A(VCB)
9 Rated short circuit making current 65 kA peak
10 Short time withstand current for 1 sec for 630A(VCB) 25 kA rms
11 Total closing time Not more than 150 ms
12 Total breaking time 100 ms
13 Operating mechanism Motor spring stored energy
14 Rated duty cycle O-0.3S-CO-3min-CO
15 Number of closing coils 1
16 Number of tripping coils 2
17 Number of auxiliary contacts for: - Making
- Breaking
- Middleposition
70 kV rms
6 Rated normal current 630A
7 Rated short circuit current (Ith), 3s 25kA rms
8 Rated short circuit current (Idyn) 65 kA peak
9 Creepage distance of insulator 25 mm/kV
10 Operating mechanism of isolator manual operated
SA -32
11 Number of auxiliary contacts for main switch - Making /Breaking
Min. 6 / 6
1 Rated lightning impulse withstand voltage 170 kVp
2 Power frequency withstand voltage (1 min.) 70 kVrms
3 Radio interference level for 0.5 MHz to 2 MHz
1000 micro V (at 92 kVrms)
4 Partial discharge level 10 pC
5 Type of insulation Class A
1.4 36kV Class Current Transformers
1 No. of Cores 3
2 Ratio 800/1: 2core for protection & 1 for metering
3 Class of accuracy Protection :5P20 Metering : Class0.2s
4 Burden (VA) 30
5 Min. knee point voltage at lowest ratio (Volts) >1kV@ max ratio for protectioncore <150V@ max ratio for meteringcore
6 Max. magnetizing current guaranteed at knee point voltage & the lowest ratio (mA)
M.R
winding at 75 0C and at lowest ratio (ohms)
M.R
1 Rated voltage levels 36 kV
2 Rated Voltage Factor 1.2 continuous; 1.5 for 30 seconds
3 Phase angle error (minutes) 20
4 Core details Core-I : Core-II :
5 Purpose Protection Metering
SA -33
8 Class of accuracy 3P 0.2
9 One minute power frequency withstand voltage between LV terminal and earth(kV rms)
4(10 if the low voltage terminal is exposed)
10 Withstand voltage for secondary winding (kV rms)
2
4 Rated voltage 30kV
6 Nominal discharge current 10kA
7 Discharge class Heavy duty 3
8 Surge counter Yes
APPENDIXA2
SL.No. Description Unit 33 kV
1. Site Condition
Max. Ambient temperature outdoor +45
Min. Ambient temperature outdoor +4
Max. Ambientrelativehumidity % 100
-horizontal g 0.1
-vertical g 0.1
ambient temperature
-transformerbay A 2500
-linebay A 2000
- bussectionalizerbay A 3000
Rated peakwithstandcurrent kA 63
operating mechanism
operating mechanism
SA -35
-t sec 0.3
- t’ min 3
6. Disconnector& EarthingSwitch
Enclosure three phase
Rated motor voltage V dc 110
7. Surge Arrester
Ratedvoltage kV 30
Nominaldischargecurrent kA 10
(a)Linebay A 2000/1,1,1 A , 30VA,
5P20 (2 Cores) forprotection,
(b)Transformer bay A 2500/1,1,1 A, 30VA,
PX (2 Cores) forprotection,
(c) Bussectionalizerbay A 3000/1,1,1 A, 30VA,
5P20 (2 Cores) forprotection,
(d) Buscouplerbay A 3000/1,1, A, 30VA,
PX (1 Cores) forprotection,
Cl 0.2s (1 Cores) formeasuring 9. VT ratio, class and output Ratio kV 33/√3/0.11/√3/0.11/√3
Totalburden VA 10
Accuracyclass 3P &0.2s
PART 2 – TRANSFORMERS 2.1 400/135/33 kV, 250/325MVA, 3-PHASE POWER TRANSFORMER:
Sl. No.
SA -36
2 Number of Phases 3
3 Number of windings 3
4 Normal ratio of transformation at no load and kV 400/132/33
at principle tap - HV/LV/TV
6 Minimum withstand voltages:
- Full wave impulse withstand
of windings kVp 1425/650/170 of line terminal bushings kVp 1425/650/170
- Induced over voltage kV rms 650/275/70
- Power frequency withstand of neutral kV rms 38
7 Type of cooling ONAN/ONAF
8 Minimum continuous rating MVA 250/325
9 Rating of tertiary windings MVA 50/65
10 Service conditions:
- Air temperature not exceeding ºC 45
Average air temperature in any
one year not exceeding:
- In any one day ºC 35
- Average in one year ºC 25 11.1 Maximum temperature : - Top oil rise normal ºC 55
- Average ONAN winding rise ºC 60
- Average ONAF winding rise ºC 60 11.2 Maximum hot spot temperature at ºC 98 maximum continuous rating at
11.3 yearly average ambient temperature Winding hot spot temperature on emergency overload not exceeding
ºC
140
400 kV busbars kA 50
132 kV busbars kA 40
SA -37
14 Impedance voltage at 75 ºC and normal tap &
MCR (at 325MVA) between windings (% on HV Base):
- HV & LV % on HVbase
- Nominal voltage kV 33
- External load kVA 500 kVA
Total range of variation of on load transformation ratio (on HV side) as sl. no. 4:
16.1 - Ratio % ±10 - Size ofsteps % 1.25 16.2 - Type of
control
On load local, Remote and supervisory Electrical and hand operation
17 Line drop compensation Yes 18 Whether automatic control required and reference
voltage Yes, 110V,
50Hz 19 Whether separate remote control panel required Yes 20 DC supply: - Nominal V 110
- Maximum float voltage V 125
21 Whether provision for supervisory control required, including AVR setting
Yes
22 Whether marshalling kiosk required Yes ,Tank side Cubicle
23 Number of transformers for which automatic control is to be suitable
3 (and provision for future 4th )
24 TERMINATIONS
terminals:
Oil/Air Bushings Oil/Air Bushings Oil/AirBushings Oil/AirBushings
25 BCT PARTICULARS i) HV (400 kV) Side (Core 1 & 2):
1600-800/1,1A, 30VA
Core 3 Ratio, burden and accuracy class shall be matched with
SA -38
WTI meter
ii) LV (132 kV) Side (Core 1 & 2): 1600-800/1,1A, 30VA
Core 3 for WTI meter
Core 4 for Tap changer
iii) Tertiary Side (Core 1 & 2): 800/1A, 30VA
iv) Neutral Bushing (core 1): 1600/1A, 30VA
26
25 mm/kV of system rated (highest) voltage
27 COOLING Number of cooler banks required per transformer
To suit transformer design
iv) Rating of each cooler bank as percentage of total loss at CMR
% To suit transformer design
v) Standby cooling requirement One fan in each group with failing of one fan shall not reduce the MCR
28
Air Cell
78 dBA
Sl.No. Description RATING AND PERFORMANCE
1 Maximum continuous rating(MCR) MVA 120 2 Number of Phases 3 3 Number of windings 2
4 Normal ratio of transformation at no load and at principle tap - HV/LV
kV 132/33
SA -39
6
impulsewithstand ofwindings of line terminal bushings
- Induced overvoltage - Power frequency withstand ofneutral
kVpkVp kV rmskVr ms
650/170 650/170 275/70 38
8 Minimum continuous rating MVA 80/120
9 Rating of tertiary windings MVA NA
10
- In any oneday - Average in oneyear
0C 0C
45 35
11.2
Maximum hot spot temperature at maximum continuous rating at yearly average ambient temperature
0C 98
11.3 Winding hot spot temperature on emergency overload not exceeding
0C 140
Delta Star Dyn1
13 Short circuit withstand fault level (one sec) at terminals of:
- 132 kVbusbars
kA kA
40 31.5
SA -40
- 33 kVbusbars
14
% % %
10-13 11.7 12.4
15 Not used 16.1 Total range of variation of on load
transformation ratio (on HV side) as sl. no. 4:
- Ratio - Size ofsteps
±10 1.25
16.2 Type of control On load local, remote and supervisoryel ectrical and handoperation
17 Line drop compensation Yes 18 Whether automatic control required and referenced
voltage Yes, 110V,
20 DC supply: - Nominal - Maximum floatvoltage
VV
21 Whether provision for supervisory control required, including AVR setting
Yes
22 Whether marshalling kiosk required Tank side Cubicle
23 Number of transformers for which automatic control is to be suitable
2 (and provision for future 3rd)
24 TERMINATIONS Bushing insulators or cable boxes on line and neutral terminals:
i) HVline ii) Neutral iii) LVline
Oil/Air Bushings Oil/AirBushings Oil/AirBushing
SA -41
ii) LV (33 kV) Side (Core 1 & 2): 2400-1600/1,1 Cl-5P20,30VA
Core 3 for WTI meter
Core 4 for Tap changer
iii) Neutral Bushing (core 1 & 2): 2400-1600/1,1 Cl-5P20,30VA
26 Pollution category of bushing insulators 25 mm/kV of system rated (highest) Voltage
27 COOLING i) Number of cooler banksrequiredper
transfor mer
total lossat CMR
iii) Standby coolingrequirement
28 29
GENERAL Type of oil preservation system Maximum acceptable noise level
Air Cell 78 dBA
APPENDIX-A4 132kV XLPE POWERCABLES
SL. Description 132kV 1 Rated system voltage 132kV 2 Max. permissible system voltage 145kV 3 Rated frequency 50Hz 4 No. of cable 1/phase 5 Cross sectional area 2000 mm2 Cu 6 Impulse withstand voltage 650 kV 7 Power frequency withstand voltage 190 kV 8 Shape of conductor Compact round 9 Insulation thickness 17-18 mm
10 Min. bending radius 15 D D is external diameter of cable
11 DC resistance at 200C 12 Short circuit rating for 1 sec 40 kA
SA -42
33kV XLPE POWERCABLES
SL. Description 33kV 1 Rated system voltage 33kV 2 Max. permissible system voltage 36kV 3 Rated frequency 50Hz 4 No. of cable 1/phase 5 Cross sectional area 800 mm2 Cu 6 Impulse withstand voltage 170 kV 7 Power frequency withstand voltage 70 kV 8 Shape of conductor Compact round 9 Insulation thickness 8-9 mm
10 Min. bending radius 15 D D is external diameter of cable
11 DC resistance at 200C 12 Short circuit rating for 1 sec 25 kA 13 Three phase symmetrical fault current
for 1 sec 70 kA
APPENDIX-A5
Battery
No.
Description
Rated voltage
V 110 ( for 110 V DC )
48 ( for 48 V DC ) 1.4 Number of cells per battery unit
pcs 92 ( for 110 V DC ) 40 ( for 48 V DC )
1.5 Type of cell Ni-Cd
1.6 Operating voltage per cell V 1.2
1.7 Floating voltage per cell V 1.40 – 1.42 1.8 Equalizing voltage per cell V 1.55 – 1.65 1.9 Rated capacity at 200 C For 5h
dischargetime Ah 330 ( for 110 V DC )
150 ( for 48 V DC )
1.10 Discharge voltage per cell V 1,1 1.11 Spec. gravity of electrolyte 1 1,2±0,02
1.13 Positive plate - Tubular Negative plate - Pasted
1.14 Type of container - Plastic polymer 1.15 Cell condition - Pre-charged 1.16 The battery stands steel frame Yes 1.17 The battery stands earth-quake
endurance type Yes
1.1 Type Thyristor controlled 1.2 Standards IEC 1.3 Rated input voltage V 3 x 400 / 230 1.4 Input voltage variation % ±15 1.5 Power factor 1 > 0,80 1.6 Efficiency % > 85 1.7 Degree of protection IP42 1.8 Noise level dB < 65 dB max 1.9
Charging characteristic Both constant current &
constant voltage 1.10 Rated frequency Hz 50 1.11 Insulation - HV, between
input and output/ground
V AC, min
Insulation resistance MW;V DC,min
1.13 Rated output voltage
110 ( for 110 V DC ) 48 ( for 48 V DC )
1.14 Rated output current
100 ( for 110 V DC ) 50 ( for 48 V DC )
1.15 Rated frequency Hz 50 1.16 Frequency variation % ±5 1.17 Voltage ripple % ±2
1.18
1.20 Float voltage per cell V 1.42
1.21 Boost voltage per cell V 1.53
1.22 Float & Boost voltage adjustable - Yes
1.23
Measurement
current Load current Earth-fault voltage
SB_1
BIDDING DOCUMENT
FOR
Augmentation of 230kV Payra substation for local electrification of Payra area on turnkey basis.
(Contract No.: PGCB/GoB/Payra/2020/SS)
BIDDING DOCUMENT
SB_1
Augmentation of 230kV Payra substation for local electrification of Payra area on turnkey basis.
SCHEDULE B (PRICE SCHEDULES)
PREAMBLE
General
1. The Price Schedules are divided into separate Schedules as follows:
Schedule No. 1: Plant Supplied from outside the Employer’s Country .
Schedule No. 2: Plant Supplied from within the Employer’s Country.
Schedule No. 3: Design Services( Not applicable)
Schedule No. 4: Installation & other services.
Schedule No. 5: Summery of price schedule
2. The Schedules do not generally give a full description of the plant to be supplied and the services to be performed under each item. Bidders shall be deemed to have read the Employer’s Requirements and other sections of the Bidding Document and reviewed the Drawings to ascertain the full scope of the requirements included in each item prior to filling in the rates and prices. The entered rates and prices shall be deemed to cover the full scope as aforesaid, including overheads and profit.
3. If bidders are unclear or uncertain as to the scope of any item, they shall seek clarification in accordance with ITB 7 prior to submitting their bid.
SB_1
Pricing
4. Prices shall be filled in indelible ink, and any alterations necessary due to errors, etc., shall be initialed by the Bidder.
As specified in the Bid Data Sheet and Special Conditions of Contract, prices shall be fixed and firm for the duration of the Contract.
5. Bid prices shall be quoted in the manner indicated and in the currencies specified in the Instructions to Bidders in the Bidding Document.
For each item, bidders shall complete each appropriate column in the respective Schedules, giving the price breakdown as indicated in the Schedules.
Prices given in the Schedules against each item shall be for the scope covered by that item as detailed in Section 6 (Employer’s Requirements) or elsewhere in the Bidding Document.
6. Payments will be made to the Contractor in the currency or currencies indicated under each respective item.
7. When requested by the Employer for the purposes of making payments or partial payments, valuing variations or evaluating claims, or for such other purposes as the Employer may reasonably require, the Contractor shall provide the Employer with a breakdown of any composite or lump sum items included in the Schedules.
Item Description Code1 Qty Unit Unit Price
CIP
Scope 1 400/132kV Substation
1A 400kV Outdoor Switchgear Equipment 1A1 Circuit Breaker 420 kV, 4,000A, 63 kA /1 sec, single pole operated 2 set
1A2 Disconnector 420 kV with Earthing Switch, 4,000 A, 63 kA / 1 sec, 2 set
1A3 Current transformer 420 kV, single-phase,63 kA / 1 sec. 6 nos.
1A4 Capacitor voltage transformer 420 kV, single-phase, 63 kA / 1 sec 6 nos.
1A5 Surge arrester 420 kV, single phase 12 nos.
1A6 Conductor, Steel Structure,Insulator & Hardware & Fittings for 400kV and
145kV:
ii. _Clamps & Connectors 1 Lot
1A6.2 Insulator & Fittings
i) _Gantry Column including nut&bolts 1 Lot
ii) _Gantry beam including nut&bolts 1 Lot
iii) _Equipment support structures including nut&bolts 1 Lot
iv) _Cable tray including fitting, fixing accessories 1 Lot
1B 132 kV Outdoor Switchgear Equipment 1B1.1 145kV, 2500A, 40kA/1sec, live tank type, gang operated SF6 gas circuit breakers
2 Sets
1B1.2 145kv, 1250A, 40kA/1sec,live tank type, gang operated circuit breakers 2 Sets
1B2.1 145kV, 2500A, 40kA/1, disconnectors with manual earthing switch 2 Sets
1B2.2 145kV, 2500A, 40kA/1, disconnectors without manual earthing switch 4 Sets
1B2.3 145kV, 1250A, 40kA/1sec, disconnectors without earthing switch, for transformer
circuit bays 6 set
*Foreign Currency (in ___)
Augmentation of 230kV Payra substation for local electrification of Payra area on turnkey basis
Schedule No. 1 - Plant and Mandatory Spare Parts Supplied from Abroad
Price Schedule 1
CIP
CIP
(1) (2) (1) x (2) 1B3.2 145kV, 40kA/1sec, single ratio, current transformer for transformer circuit bays
(1250/1) 6 nos.
1B5 120 kV, single phase, surge arrester 18 Nos.
1B6 Single phase Bus Post Insulator 6 nos.
1B7 Flexible Conductor, clamps & connectors for Jumper & equipment Connection
i. _Flexible Conductor for jumper, equipment connections 1 Lot
1B8 Insulator & Fittings
i) _Gantry Column including nut&bolts 2 nos.
ii) _Gantry beam including nut&bolts 4 nos.
iii) _Equipment support structures including nut&bolts 6 nos.
iv) _Cable tray including fitting, fixing accessories 1 lot
1C POWER TRANSFORMER AND AUXILIARY TRANSFORMER
1C1
connections,insulators,fittings 2 nos.
connections,insulators,fittings 2 NOS.
1C3 33/0.4 KV,500KVA earthing transformer with neutral earthing resistor 100A 1 no. 1C4 Nitrogen injection power protection 2 nos.
1D 33 kv SWITCHGEAR connection and steel structure for Auxiiary Connection
1D1 Circuit breaker,36kv ,630A, 25KA/1S 1 No. 1D2 Disconnector 36kv ,630A, 25KA/1S 1 set 1D3 Current transformer 36 kv,630/1A ,3 CORE 3 nos. 1D4 Inductive voltage transformer 33/v3,110/v3,110/v3,25kA/1S 3 nos. 1D5 30KV,10kA,SINGLE phase surge arrester 9 nos. 1F CONTROL PROTECTION SAS & METERING
1F1 Control,protection,metering and SAS for 400KV line feeders 2 nos.
1F2 Control,protection,metering and SAS for 400KV TRANSFORMER feeders 2 nos.
1F3 Control,protection,metering and SAS for 400KV TRANSFORMER LV feeders 2 NOS.
Price Schedule 2
CIP
CIP
(1) (2) (1) x (2) 1F4 Control,protection,metering and SAS for 132/33 KV TRANSFORMER feeders 2 nos.
1F5 Control,protection,metering and SAS for auxiliary transformer 1 nos.
1F6 TARIFF metering panel including meters 1 Lot 1G POWER CABLE AND TERMINATION
1G1
132KV,2000 sqmm cable & termination for both side of cable for two transformer LV
side and 132kv bus side 1 lot
1G2 33KV ,800 SQMM for 132/33kv transformer LV side 1 lot 1G3 33KV, 185 SQMM XLPE for auxiliary 1 lot 1H Multi core cable
1H1 MULTI CORE CABLE 0.6/1.1 kv for control and power 1 lot 1I Earthing & lightning
1I1 COMPLETE earthing and lightning protection 1 lot 1J CIVIL WORKS,BUILDING,FOUNDATION
1J1 EARTH FILLING - -
fences,boundary wall, - -
1K1
LED type flood light for security,road way,switchyard,and emergency dc light at
strategic location 1 lot
1L Fibre optic multiplexer
1L1 Fibre optic multiplexer and installation commissioning 1 lot 1L2 optical joint box and termination .installation of MDF and pigtails cable 1 lot 1M SCADA SYSTEM
1M1 SCADA system implementation with NLDC and back up station 1 lot 1N1 Mandatory spares,Erection& test equipment
i) Transformer 400 kV bushings 1 nos.
ii) Transformer 132 kV bushings 2 nos.
iii) 33 kV bushing 2 nos.
iv) Neutral bushing 2 nos.
v) Winding temperature indicating device 2 nos.
vi Set of gaskets (10% of total quantities installed) 1 nos.
vii Silica gel (100% of total quantities installed) 1 nos.
viii Spare transformer oil 12000 liters
1N2 PROTECTION, CONTROL, METERING & Others i) Line differential relay with complete protection elements 2 set
Price Schedule 3
CIP
CIP
(1) (2) (1) x (2) ii) Transformer differential relay with complete REF function 1 set
iii) overcurrent and earth fault relay 1 set
iv) Tripping relay (electrical reset) 1 set
v) Bay control unit 2 sets
Scope 2 33kV Switching Station 2A 33 kV Indoor Type Gas Insulated Switchgear (GIS)
2A1 33kV 2000A Outgoing Switchgear 8 Set 2A2 33kV 2500A Outgoing Switchgear with PT 2 Set 2A3 33kV 3000A Busbar with PT 1 Set 2A4 33kV 3000A Bus SECTION 1 Set 2A5 33kV 2000A 33/.415kV Auxiliary Transformer feeder 1 Set
33 kv AIS SWITCHGEAR connection and steel structure
2A6 30KV,10kA,SINGLE phase surge arrester 3 nos.
2A7 Flexible Conductor, clamps & connectors for Jumper & equipment Connection
i. _Flexible Conductor for jumper, equipment connections 1 lot
ii. _Clamps & Connectors 1 lot
2A8 Insulator & Fittings
i) _Gantry Column including nut&bolts 1 lot
ii) _Gantry beam including nut&bolts 1 lot
iii) _Equipment support structures including nut&bolts 1 lot
2B POWER TRANSFORMER AND AUXILIARY TRANSFORMER
2B1 33/0.4 KV,500KVA auxiliary transformer 1 no. 2C CONTROL PROTECTION SAS & METERING
2C1 Complete Control, Protection Metering & SAS system for 132/33kV transformer
including tap changer control (LV Side) 2 set
2C2 Control, Protection, metering and SAS for 33kV bays 8 sets
2C3 Control, protection and SAS for 33/0,4 kV Auxiliary Transformer circuits, including
Control & Protection Cubicles
2C5 Integration with existing SAS 1 lot
Sub-Total of Scope 1
CIP
(1) (2) (1) x (2) 2D POWER CABLE AND TERMINATION
2D1 33KV, 185 SQMM XLPE for auxiliary 1 lot 2 E Multi core cable
2 E 1 MULTI CORE CABLE 0.6/1.1 kv for control and power 1 lot 2 F Earthing & lightning
2F1 COMPLETE earthing and lightning protection 1 lot 2G BATTERIES ,CHARGER,DC DISTRIBUTION
2G1 110 V DC Battery 330AH SET 2 SET 2G2 110V DC battery charger 90A 2 SET 2G3 110V dc distribution board 1 lot 2G4 48 V DC BATTERY SET 150AH 2 SET 2G5 48 v dc battery charger 2 set 2G6 48v dc distribution board 2 set 2H LV AC Distribution
2H1 LV AC Switchboard 1 lot 2H2 SOCKET ,125A 1 No. 2H3 TARIFF meter and panel for auxiliary transformer 1 lot 2I CIVIL WORKS,BUILDING,FOUNDATION
2I1 EARTH FILLING - -
trench,septic tank,gravel laying,drainage,security fences,boundary wall, - -
2I3 TWO STORIED control building for 33kv indoor GIS - - 2J LIGHTING,SMALL POWER,AC,Ventillation
2J1
CONTROL BUILDING 1 lot
2J2
Total Price carried to Summary of Price Schedule (Scope 1 + Scope 2)
Price Schedule 5
CIP
(1) (2) (1) x (2)
1 Bidders shall enter a code representing the country of origin of all imported plant and equipment and submit separate form following the country of origin declaration form:
* Specify currency accordance with Bid Data Sheet 19.1
Country of Origin Declaration Form
Item Description Country
Price Schedule 6
Price
1A 400kV Outdoor Switchgear Equipment 1A1 Circuit Breaker 420 kV, 4,000A, 63 kA /1 sec, single pole operated 2 set
145kV:
2 Sets
circuit bays 6 set
1B3.2 145kV, 40kA/1sec, single ratio, current transformer for transformer circuit bays
(1250/1) 6 nos.
Foreign Currency (in _)
Schedule No. 2 - Plant and Mandatory Spare Parts Supplied from Within the Employer's country
Local Currency (in BDT)
Price
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) 1B4.1 145kV, 40kA/1sec, single-phase, 2-core, Capacitive voltage transformer (CVT) 6 Nos.
1B4.2 145kV, 40kA/1sec, single-phase, 2-core, inductive voltage transformers (IVT) 6 nos.
1C1
1D1 Circuit breaker,36kv ,630A, 25KA/1S 1 No. 1D2 Disconnector 36kv ,630A, 25KA/1S 1 set 1D3 Current transformer 36 kv,630/1A ,3 CORE 3 nos. 1D4 Inductive voltage transformer 33/v3,110/v3,110/v3,25kA/1S 3 nos. 1D5 30KV,10kA,SINGLE phase surge arrester 9 nos. 1F CONTROL PROTECTION SAS & METERING
1F4 Control,protection,metering and SAS for 132/33 KV TRANSFORMER feeders 2 nos.
1F6 TARIFF metering panel including meters 1 Lot
Price Schedule 8
Price
EXW Total Price
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) 1G POWER CABLE AND TERMINATION
1G1
1J1 EARTH FILLING - -
fences,boundary wall, - -
1K1
1L1 Fibre optic multiplexer and installation commissioning 1 lot 1L2 optical joint box and termination .installation of MDF and pigtails cable 1 lot 1M SCADA SYSTEM
1M1 SCADA system implementation with NLDC and back up station 1 lot 1N1 Mandatory spares,Erection& test equipment
iii) 33 kV bushing 2 nos.
1N2 PROTECTION, CONTROL, METERING & Others i) Line differential relay with complete protection elements 2 set
ii) Transformer differential relay with complete REF function 1 set
Price Schedule 9
Price
EXW Total Price
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) v) Bay control unit 2 sets
Scope 2 33kV Switching Station 2A 33 kV Indoor Type Gas Insulated Switchgear (GIS)
2A1 33kV 2000A Outgoing Switchgear 8 Set 2A2 33kV 2500A Outgoing Switchgear with PT 2 Set 2A3 33kV 3000A Busbar with PT 1 Set 2A4 33kV 3000A Bus SECTION 1 Set 2A5 33kV 2000A 33/.415kV Auxiliary Transformer feeder 1 Set
iii) _Equipment support structures including nut&bolts 1 lot
2C4 Tariff metering for 33kV bays 1 Lot
2C5 Integration with existing SAS 1 lot 2D POWER CABLE AND TERMINATION
2D1 33KV, 185 SQMM XLPE for auxiliary 1 lot 2 E Multi core cable
Price
EXW Total Price
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) 2 E 1 MULTI CORE CABLE 0.6/1.1 kv for control and power 1 lot 2 F Earthing & lightning
2F1 COMPLETE earthing and lightning protection 1 lot 2G BATTERIES ,CHARGER,DC DISTRIBUTION
2G1 110 V DC Battery 330AH SET 2 SET 2G2 110V DC battery charger 90A 2 SET 2G3 110V dc distribution board 1 lot 2G4 48 V DC BATTERY SET 150AH 2 SET 2G5 48 v dc battery charger 2 set 2G6 48v dc distribution board 2 set 2H LV AC Distribution
2H1 LV AC Switchboard 1 lot 2H2 SOCKET ,125A 1 No. 2H3 TARIFF meter and panel for auxiliary transformer 1 lot 2I CIVIL WORKS,BUILDING,FOUNDATION
2I1 EARTH FILLING - -
trench,septic tank,gravel laying,drainage,security fences,boundary wall, - -
2I3 TWO STORIED control building for 33kv indoor GIS - - 2J LIGHTING,SMALL POWER,AC,Ventillation
2J1
2J2
Local Currency Portion (Taka)
-
Schedule No. 3. Design Services
(Special Notes)
1) The Design Services, shall include Project managing/ engineering fees such as, Liaison, overall substation design, project schedule & control ,
drawings/ documentation handling, contract issues, cash flows, periodical reporting, Project progress meeting and etc., which are not including in
equipment, installation, site testing and civil works for the Contract.
2) The design fees for plant and mandatory spare parts shall be included in Schedule No .1 or 2 with respective items.
3) The design fees for erection/Installation, commissioning and Civil works shall be including in related items of Schedule No.4.
Item Description Qty. (1)
TOTAL OF SCHEDULE NO.3 (Scope 1 + Scope 2)
(To be indicated in Schedule No.5 Ground Summary)
Name of Bidder
Signature of Bidder
Price Schedule 12
Currency
portion
1A 400kV Outdoor Switchgear Equipment
1A1 Circuit Breaker 420 kV, 4,000A, 63 kA /1 sec, single pole operated 2 set
145kV:
2 Sets
circuit bays 6 set
Schedule No. 4 - Installation and Other Services
Unit Price1 Total Price1
Currency
portion
(1250/1) 6 nos.
1C1
1D1 Circuit breaker,36kv ,630A, 25KA/1S 1 No.
1D2 Disconnector 36kv ,630A, 25KA/1S 1 set
1D3 Current transformer 36 kv,630/1A ,3 CORE 3 nos.
1D4 Inductive voltage transformer 33/v3,110/v3,110/v3,25kA/1S 3 nos.
1D5 30KV,10kA,SINGLE phase surge arrester 9 nos.
1F CONTROL PROTECTION SAS & METERING
Price Schedule 14
Currency
portion
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4)
1F4 Control,protection,metering and SAS for 132/33 KV TRANSFORMER feeders 2 nos.
1F6 TARIFF metering panel including meters 1 Lot
1G POWER CABLE AND TERMINATION
1G1
1J1 EARTH FILLING 1 lot
1J2
trench,septic tank,gravel laying,drainage,security fences,boundary wall, 1 Lot
1J3 _Transformer foundation including oilpit & carrage way foundation to be considered
for 325MVA, 400/132kV TXR) 2 Nos.
1J4 _Transformer foundation including oilpit & carrage way foundation to be considered
for 120MVA, 132/33kV TXR) 2 Nos.
1J5 _Blast wall 3 nos. 1J6 _Gravel laying 1 lot 1K LIGHTING,SMALL POWER,AC,Ventillation
1K1
1L1 Fibre optic multiplexer and installation commissioning 1 lot
1L2 optical joint box and termination .installation of MDF and pigtails cable 1 lot
1M SCADA SYSTEM
1M1 SCADA system implementation with NLDC and back up station 1 lot
1N1 Mandatory spares,Erection& test equipment
Price Schedule 15
Currency
portion
portion
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) iii) 33 kV bushing 2 nos.
1N2 PROTECTION, CONTROL, METERING & Others
i) Line differential relay with complete protection elements 2 set
ii) Transformer differential relay with complete REF function 1 set
v) Bay control unit 2 sets
Scope 2 33kV Switching Station
2A 33 kV Indoor Type Gas Insulated Switchgear (GIS)
2A1 33kV 2000A Outgoing Switchgear 8 Set
2A2 33kV 2500A Outgoing Switchgear with PT 2 Set
2A3 33kV 3000A Busbar with PT 1 Set
2A4 33kV 3000A Bus SECTION 1 Set
2A5 33kV 2000A 33/.415kV Auxiliary Transformer feeder 1 Set
Currency
portion
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) iii) _Equipment support structures including nut&bolts 1 lot
2C5 Integration with existing SAS 1 lot
2D POWER CABLE AND TERMINATION
2D1 33KV, 185 SQMM XLPE for auxiliary 1 lot
2 E Multi core cable
2 E 1 MULTI CORE CABLE 0.6/1.1 kv for control and power 1 lot
2 F Earthing & lightning
2G BATTERIES ,CHARGER,DC DISTRIBUTION
2G2 110V DC battery charger 90A 2 SET
2G3 110V dc distribution board 1 lot
2G4 48 V DC BATTERY SET 150AH 2 SET
2G5 48 v dc battery charger 2 set
2G6 48v dc distribution board 2 set
2H LV AC Distribution
2H2 SOCKET ,125A 1 No.
2H3 TARIFF meter and panel for auxiliary transformer 1 lot
2I CIVIL WORKS,BUILDING,FOUNDATION
2I2
trench,septic tank,gravel laying,drainage,security fences,boundary wall, 1 lot
Price Schedule 17
Currency
portion
portion
(1) (2) (3) =(1)x(2) (4) (5)=(1)x(4) 2I3 TWO STORIED control building for 33kv indoor GIS 1 lot 2J LIGHTING,SMALL POWER,AC,Ventillation
2J1
2J2
stubs, nuts, bolts, locking nuts, washers, phase
conductor and earthwire swivels/shackles, step bolts,
tower notice and identification plates, ACDs, ptotective
coating, earthing etc.
3A1.2 Tower type 4D1
Schedules of Rates and Prices
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
AUGMENTATION OF 230kV PAYRA SUBSTATION FOR LOCAL ELECTRIFICATION OF PAYRA
AREA ON TURNKEY BASIS
Scope-3: 400kV Line
Schedule No. 1. Plant and Mandatory Spare Parts Supplied from Aboard
Item no. Description of Works Code 1 Unit Qty
Price Schedule-19
Unit Price2
BIDDING DOCUMENT
Scope-3: 400kV Line
3A1.3 Tower type 4D25 (4DXP)
3A1.3.1 Tower type 4D25 Standard each 0
3A1.3.2 Tower type 4D25 E1.5 each 0
3A1.3.3 Tower type 4D25 E3 each 0
3A1.3.4 Tower type 4D25 E4.5 each 0
3A1.3.7 Tower type 4D25(4DXP) E6 each 0
3A1.4 Tower Type 4D45
3A1.5 Tower Type 4DT6
3A1.8 Auxiliary Crossarm for tower
3A1.8.1 Auxiliary crossarm for tower type 4DT6 per set of
three 2
lamps, solar, panels, batteries, control equipment
cables, support framework, tower work platform etc.
per tower 0
BIDDING DOCUMENT
Scope-3: 400kV Line
3A2. Supply of insulator and fittings:
Insulator sets complete with insulators and all hardware
fittings including suspension clamps, tension dead
ends, armour rods, arcing horn, Arcing ring etc
3A2.1 400kV Overland Portion
Twin "ACSR FINCH" Conductor (Suspension) -
hardware fittings only
"ACSR FINCH" Conductor (Heavy Suspension) - disc
only
Twin "ACSR FINCH" Conductor - hardware fittings only set 0
a) 160kN jumper suspension Insulators Set for Twin
"ACSR FINCH" Conductor - disc only set 0
b) 160kN jumper suspension Insulators Fittings Set for
Twin "ACSR FINCH" Conductor - hardware fittings only set 30
a) 210kN twin tension Insulators Set for Twin "ACSR
FINCH" Conductor - disc only set 0
b) 210kN twin tension Insulators Fittings Set for Twin
"ACSR FINCH" Conductor - hardware fittings only set 30
a) 210kN single upright low duty Insulators Set for Twin
"ACSR FINCH" Conductor - disc only set 0
b) 210kN single upright low duty Insulators Fittings Set
for Twin "ACSR FINCH" Conductor - hardware fittings
only
Twin "ACSR FINCH" Conductor - disc only set 0
b) 210kN single inverted low duty Insulators Fittings Set
for Twin "ACSR FINCH" Conductor - hardware fittings
only
BIDDING DOCUMENT
Scope-3: 400kV Line
Item no. Description of Works Code1 Unit Qty
3A2.1.7 Spacer damper for Twin "ACSR FINCH" Conductor span-phase 24
**Span-phase=No. of span x 6. Total quantities of
spacer or spacer dampers shall be 'Span-phasexN',
where N= Number of spacer dampers for each phase in
each span which shall be determined by contractor
based on the design of spacer or spacer dampers. The
price quoted shall remain unchanged, even if the value
of N incr