Central Building Research Institute Tender
View complete overview of Uttarakhand CBRI Tender
Central Building Research Institute - CBRI Tender
Electrical Generators And Transformers
Electrical and Electronics
Eprocure
Opening Date17 Nov 2023
Closing Date7 Dec 2023
Tender AmountRefer Documents
Costs
EMD
₹ 1,46,000Document Cost
₹ 1,180Tender Fee
Refer Documents
Description
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Contact
Tender Id
2023_CSIR_174846_1Bid Award Id
ViewTender No
72(VID) /TSG /NTRF / 2023-24Tender Authority
Central Building Research Institute ViewPurchaser Address
-Website
http://https://www.csir.res.in/
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Documents
BOQ Items
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1.Electrical distribution panel Specifications: i. Panels shall be suitable for 415V, 3 phase, 4 wire, 50 HZ supply system.
ii. 2 No. earthing terminals shall be provided for distribution panel.
iii. Panel, fabricated out of 14 gaugeCRCA sheet steel in cubicle. Formation and compartment alized free standing floor mounted dust and vermin proof. iv. 3 mm thick cable gland plates shall be provided on top as well as at the bottom of the panel. v. Panels shall be treated with all anticorrosive process before powder coating.
vi. Indicator lights shall be provided to mention status for all compartments.
vii. All bus bar section/ backside panels shall have pad locking facility and hinged type door.
viii. Wiring and supply for installation of space heater, humidistat and control MCB’sshall be provided for all vertical sections.
ix. Incoming breakers shall have suitable provision for busduct connection.
x. Approval shall be taken on final design before fabrication.
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2. Electrical distribution panel Incomer Specifications
Incoming Air Circuit Breaker from 1000 kVA Transformer of 2000 amps, 4 pole,65KA breaking capacity, electrically operated manually draw out type air circuit breakerwith microprocessor release unit, for short circuit, over current, under Voltage and earth faultprotection with adjustable setting consisting of:
i. Digital load manager/Electronic Meter of accuracy class-I, or equivalent.
ii.Phase indicating light shall be protected by suitable rate MCB’s
iii.Breaker ON / OFF / TRIP indicating lights with control MCB’s. - 1 Set
iv.240 V DC Shunt trip coil. - 1 Set
v.240 V under voltage release. - 1 Set
vi.Breaker control switch - 1 Set
vii.Emergency stop push button.
viii.Selector switch for Auto / Manual / Test
ix.Five push buttons – start, stop, reset, test and accept
x.Phase loss+PhaseSequence+Phase Assymetry+UV+OV+3 Phase interruption relay.
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3. Bus Bar Specifications: i.2000 A TPN electrolytic Al bus bar with heat shrinkable insulation sleeve.
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4. Outgoing Specifications: Outgoing breakers with under voltage release and shall be electrically operated manually draw out type with electrical/microprocessor release unit, and all outgoing feeders shall be provided with built-in over current, short circuit, under voltage& earth fault relay module
i.1000 Amps 4 Pole, 50KA Breaking capacity ACB - 1 No.
ii. 1000 Amps 4 Pole 50KA Breaking capacityACB - 1 No. (Spare)
iii. 630 Amps 4 Pole MCCB - 1 No. (For APFC unit)
All outgoing shall have dual Electronic meter with required number of CT's.
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5. Bus Coupler Specifications:
i. 2000 amps 4 pole, 65 KA breaking capacity ACB, with ON/ OFF/ TRIP indicating lamps with microprocessor release unit.
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Isolator Switch of 11kV, 630A, 21kA for 3 sec Outdoor, SF6 Gas Insulated switchgear with 01 nos direct cable module and 01 no. Manually operated Vacuum Circuit Breaker.
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HT Switchgear Specifications : Indoor type 11KV VCB Switchgear Panel with 1 incoming panel and 2 outgoing panel with each outgoing panel consisting of following specifications:
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A. The instrument panel and instrument transformers shall be complete in all respect consisting of:
i. Control relay panel having Trip circuit supervision relay, Restricted Earth Fault relay with CT's, Master Trip circuit relay, over current & Earth Fault IDMT relay
ii. Cast resin CTs of dual ratio 40– 80 / 5 Amps CL:1, 5P10, 15 VA.
iii. Cast resin drawout type PTs 11 kV / √3 / 110 √3, class 1, 100 VA.
iv. Breaker control switch,
v. Set of ON/OFF indicating lamps.
vi. Clear lamp for trip circuit health supply.
vii. Digital electronic ammeter with selector switch.
viii. Digital electronic Voltmeter with selector switch.
ix. Digital electronic Trivector meter.
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B. The equipment shall be totally enclosed in MS sheet enclosed cubical, dust and vermin proof with necessary isolation arrangement at the incomer side. Each panel shall be easily extensible on either side and should be complete with necessary internal copper connections, small wiring, L.T. fuses and supporting framework with bolts to secure it to the floor. Each panel shall be provided with space heater, door switch with lamps and 15 - Ampere power receptacle.
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C. The breakers shall have the following ratings: i.Type- Vacuum type
ii.No. of poles-3
iii. Nominal System Voltage-11 KV
iv. Highest System Voltage-12 KV
v. Rated frequency-50+1.5Hz
vi. Rated continuous current rating at Ambient temperature, as specified in IS: 13118 -1991-800 Amp Busbar current
vii. Busbar Chamber-800 A copper bus bar, heat shrinkable PVC sleeved /powder coated with colour code. The current density 1.5 Amps/sq. mm. The busbar shall be high conductive electrolyte copper.
viii. Impulse withstand test voltage-75 KV (peak)
ix. One minute power frequency withstand test voltage-28 KV (rms
x. Short time current rating Not less than-18.4 KA for 1 Second.
xi. System neutral- Solidly earthed.
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Providing and fixing of lightning conductor finial, made of 25 mm dia 300 mm long ,G.I. tube ,having single prong at top with 85 mm dia 6mm thick G.I. base plate including holes etc. Complete as required.
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Supply & Fixing of lighting conductor air termination system (copper made-multi prong) with base plate including holes etc. Complete as required.
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Jointing copper /G.I. tape (with another copper/G I tape, base of the finial or any other metallic object) by riveting /nut boiting /sweating and soldering etc as required.
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Providing and fixing G.I. tape 20mm*3mm thick on parapet or surface of wall for lighting conductor complete as required .(For vertical run )
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Providing and laying G.I. tape 32mm*6mm from earth electrode directly in ground as required.
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Earthing with copper earth plate 600mm*600mm*3mm thick including accessories ,and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc.with charcoal /coke and salt as required.
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Supplying and laying 75mm*15mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/terminating with G.I nut, bolt, spring washer etc. as required .(jointing shall be done by overlapping and with 2 sets of G.I . nut bolt & spring washer spaced at 50mm).
200
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Excavating trenches of required width upto 1.5 m depth including getting out the excavated soil, laying the cable in the same trench with protective covering including returning the soil as required in layers not exceeding 20cm in depth including consolidating each layer by ramming, watering etc. and disposing surplus excavated soil as directed with in a lead of 50m,dressing of sides all as required for pipe, cable etc not exceeding 400mm dia.
250
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Supplying and Laying HT 185 sq mm 3 core 11KV Alluminium conductor
50
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Supplying and Laying LT 240 sq mm 4 core 11 KV Alluminium conductor cable 200 meter.
200
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Construction and civil works for the installation of Transformer (complete in all respect as directed by Engineer In-charge)
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