Border Security Force Tender

Supplying, installtion, testing and commissioning of indoor typefloor mounted metal clad, 11 KV VCB panel with 03 No VCBs (01 Nos incomer and 02 nos outgoing with VCB) totally enclosed & fully interlocked, horizontal draw out, horizontal/vertical isolation type breaker as per IS 13118, as amended up to date and additional specification, having capacities as mentioned below, single break, trip free mechanism, manually charged and auto/manually closing breaker suitable for use on 11 KV, 3 Phase, 50 Hz AC supply with short circuit fault level of 350 MVA, complete with self-contained, fully interlocked, rack in and rack out mechanism, air insulated but encapsulated copper bus bars of 800 amps capacity, breaker featured with mechanical ON/OFF indicator with hand trip device, spring release coil, shunt trip coil and auxiliary switch of 4 NO + 4 NC and equipped with following switchgears and accessories i/e/ connections suitable for 3 x 240 sqmm/XLPE 11 KV cable (cable entry from bottom/top/side) i/c dismantling the existing OCB/VCB and testing on load etc as required. (a) Incoming - 1 No 800 Amp VCB :- (i) 01 No - 11 KV/110 volts PT class 0.5 accuracy and 110 VA burden with 1 No. voltmeter (0-15KV), digital type, selector switch for voltmeter and protection fusses/MCB for HT metering upto 12 KV on incomer. (ii) 01 No- (0-300 A) dual scale ammeter, digital type, selector switches for ammeters. (iii) 01 No. microprocessor based numerical relay with O/LM E/F and S/C protection. (iv) 01 No. - set of dual core dual ratio 3 CTs 300/150/5/5 A of 15 VA burden and accuracy class - 0.5 for metering and class 5p 10 for protection. (v) 1 set of indicating lamps to indicate OPEN, CLOSE, TRIP, SPRING CHARGED, TRIP CIRCUIT. (vi) 1 Set of Phase indicating lamps with protection MCB. (b) Outgoing - 2 Nos 800 Amp VCB :- (i) 01 Nos - (0-100) A) Ammeters, dual scale digital type & selector switches for ammeters and voltmeter (0-15KV), digital type, selector switch for voltmeter. (ii) 01 Nos. Microprocessor based numerical replays with O/L, E/F & S/C protections. (iii) 1 Nos-Set of dual core dual ratio 3 CTs 100/50/5/5 A of 15 VA burden and accuracy class-1.0 for metering and class 5P 10 protection . (iv) 1 set of indicating lamps to indicate OPEN, CLOSE, TRIP, SPRING CHARGED, TRIP CIRCUIT. (v) 1 set of Phase indicating lamps with protection MCB. (vi) Power pack with 220 Volt AC input & 24 Volt DC continuous output suitable for closing/tripping/indication of 3 Nos. HT panel boards with 2 Nos. 12 Volts each maintenance free batteries of 100AH each with battery box, charging unit, capacitor bank for emergency delivering for trip system complete with suitable capacity of Ammeter & Voltmeter i/e connections with 2.5 sq.mm FRLS insulated copper conductor cable etc. as required alongwith power pack trolley.

Earthing with copper earth plate 600 mm x 600 mm x 3 mm 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.

Providing and fixing 25 mm x 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required.