Uttar Pradesh Rajkiya Nirman Nigam Limited - Uttar Pradesh
36505025 tender for electrical work, noida 1 630 kva transformer 2 design, manufacture, supply, installation, testing and commissioning of 11 kv / 0.415 kv, 3 phase, 50 hz delta / star 11 connected, out door type, transformer ( rating as specified below ) , oil immersed onancooled, completewithall fittings such as oil conservator, silica gel breather, thermometer, explosion vent with on load tap changing ( oltc ) arrangement on hv side with rtcc & avr, required control cabling , with tapping for variations of high voltage from ( + ) 5% to ( ) 10% in steps of 2.5% each, bi directional roller, diagrams & rating plate, lifting lugs, firstfilling of oil, weather proof l.t cable box, h.t. bushings with lightning arrester etc. complete as per specification. transformer shall be as per latest is 1180, level 2.losses @ 50% 1745 w, losses @ 100 % 4850 w 3 supply and burring of safe earthing electrode t 39cu copper coated, length up to 3000mm, out pipe 76.3mmx32.inner pipr 42.4mm x2.6 mm, terminal dia 12mm, coating80 100micronfilledwithcrystriallineconductivemixture ( ccm ) having anti corrosive & conductive property with 50kgs activated soil ( bfc ) capable of reducing the soilresistivity with good moisture of retaining capacityalongwith30cmsquareciframewithhingedcover&masonry housing ( fromelectrodeterminaltoswitchboard, costof25x3copperstrip will be extra ) make: as approved in u.p.p.w.d. & c.p.r.i certified. 4 supply and burying of 600mm x 600mm x 6mm g.i. plate vertically for earthing with its top at least 3 metres below ground level complete with 20mm dia g.i. pipe and funnel for watering and one earthing lead of two no. 8 to 10 swg gi wire in 15mm dia g.i. pipe up to switch board ( from appron to switch board the cost of g.i. pipe and g.i. wire will be extra ) 30cm square c.i. frame with hinged cover masonry housing alternate layers of charcoal / coke and salt at least 150mm thick alround etc. as per directions of engineer in charge complete in all respect. 5 2 panel h.t. vcb board 6 supplying, installation, testing & commissioning of two panel with board vcb totally enclosed, indoor sheet steel clad floor mounting, vermin proof, vertical isolation, horizontal drawout, extensible type air insulated metal clad switchgear having motorised mechanism spmx, complete with circuits detailed as below. the switchboard would be complete with necessary copper busbarsandintegralearthingfacilitythroughcopperbusbar fortheentire switchboard, smallwiringlabels, cableeyes, cableboxtoreceivexlpe cables suitable for operation on 11 kv, three phase, 50 cycle, earthed a.c. systemwitharupturingcapacityof350mvaat11kv. 7 incomer 1 set 8 1 ) one.incomingpanelequippedwithairinsulatedmetalclad630amps. housing. 9 2 ) a set of three phase pvc insulated 630 amp copper busbars. 10 3 ) onetriplepoledrawouttruckmounted350mva630amps, vacuum circuit breaker fitted with all necessary vacuum interrupters. 11 4 ) one tripfree, motorcharged, springreleasedclosingmechanismfitted with shunttrip coilsuitable for24 vdc operation complete with necessary auxiliary switches, emergency hand trip deviceand mechanical on and off indicators. 12 5 ) 3 nos 150 / 75 / 5 / 5 ratio, 15 va, class 1.0 resin cast current transformer for metering purpose and 15 va, class 5p10 resin cast currenttransformer for protectionpurposes. 13 6 ) onethreephasehorizontaldrawouttyperesincastlinetypepotential transformerof11kv / 110v, 100vaburdenperphaseclass1.0accuracy connected star / star on hv & lv sides with hv and lv fuses, isolating plugs, for hv side and lv connection. 14 7 ) one strip heater to prevent absorption of moisture. 15 instrument panel 16 1 ) one 144 sq.mm, scaled 0 15000v, flush type, digital voltmeter with 3 way and off selector switch. 17 2 ) one 144 sq.mm, scaled ( 0 100 ) amps, flush type, digital ammeter with 3 way and off selector switch. 18 3 ) one 144 sq.mm digital pf meter. 19 4 ) one no. electronic trivector meter. 20 5 ) one triple pole very inverse definite mean time over current and earth fault relay two outer elements connected for over current protection and the middle elementforearthfaultprotectionwithovercurrentsettingof50 200%, and earth fault setting 10 to 40% andshort circuit setting of 200 800%. 21 6 ) one no. trip circuit supervision relay. 22 7 ) one no. master trip relay. 23 8 ) annunciationcircuitfor faulttrippingofhtpanelswith8window annunciation with windows. 24 9 ) one set of red / green / indication lamps for check and open protection. 25 10 ) one amber indicating lamp for trip circuit healthy. 26 11 ) one set ofwhite phase indication lamps for phase. 27 outgoing 1 sets 28 1 ) outgoing panel equipped with air insulated metal clad 630 amps. housing 29 2 ) a set ofthree phase pvc insulated 630 amp copper busbars. 30 3 ) onetriplepoledrawouttruckmounted350mva630amps, vacuum circuit breaker fitted with all necessary vacuum interrupters. 31 4 ) one tripfree, motorcharged, springreleasedclosingmechanismfitted with shunttrip coilsuitable for24 vdc operation complete with necessary auxiliary switches, emergency hand trip deviceand mechanical on and off indicators. 32 5 ) 3 nos 75 / 5 / 5 / 5 a ratio, 15 va, class 1.0 resin cast current transformer for meteringpurposeand15vaclass5p10resin castcurrent transformerfor protectionpurposes. 33 6 ) one strip heater to prevent absorption of moisture. 34 7 ) one 144 sq.mm, scaled ( 0 50 ) amps, flush type, digital ammeter with 3 way and off selector switch. 35 8 ) one no. trip circuit supervision relay. 36 9 ) one no. master trip relay 37 10 ) one set of red / green / indication lamps for check and open protection. 38 11 ) one amber indicating lamp for trip circuit healthy. 39 12 ) one set ofwhite phase indication lamps for phase. 40 13 ) suitablecableboxeswith doublecompression brassglandssuitableto receive 11kv xlpe cable. 41 14 ) annunciationcircuitfor faulttrippingofhtpanelswith8window annunciation with windows....