Annual maintenance of different 11 kv ht incoming and differernt 3.3 kv ht outgoing overhead power lines of jocp for a period of 12 months along with the renovation of lightning protection system of main substation, laiyo substation and mines at

Auxiliary transformer 80va pri 500 525 550, part no. fs2004c,air breaker contactor 16amps, part no fs2003a,air break contactor 63 amps, part no fs2003e,direct acting thermal overload relay, part no fs2010a,earth leakage relay complete w.o. transf, part no fs2018,pilot relay 12v dc, part no fs2026,auxiliary contactor 2no 2nc 110v 415v 550v, part no fs2020,auxillary cantactor 3 no 1nc 110v 415v , part no fs2020a,i.s. pilot oanel instrinsically safe, part no fs2035,air break contactor 40amps upto 20hp 550v, part no fs2003c,isolator 200 amp,3.3 kv on off, part no ht100,vacuum contactor 400 amps, 3.3kv, part no ht200,bottle vaccum interrupture 400a for cont, part no ht202,auxiliary contactor 3no 1nc, 110v, part no ht208,resin cast p.t. 750va, 3.3kv 110 volt, part no ht300,resin cast p.t 300va 3.3kv 110v, 3 phase, part no ht350,resin cast moulded ct for o l relay 75 , part no ht600,resin cast moulded ct for ammeter 150 5, part no ht650,earth leakage relay unit complete witho, part no ht800,3 pole magnetic o l relay

Repairing of dol starter, local sl. no. 05, 3.3 kv, make prabhu for controlling of ht motor at quarry of 03 under religara ocp

Installation of 3 nos 1250 amps ab switch at one for o seam feeder ocp 3.3 kv controlling 2nd for ganga feeder in ocp 3.3 kv controlling and 3rd in prabhu feeder for 3.3 kv pump controlling in 6 no. sub-station of amal. nt-st-jg colliery under lodna

Erection of earth wire for 6.6 kv and 3.3 kv feeder from quarry no. 01 substation and 3.3kv feeder from quarry no. 02 substation in respect of purnadih ocp, nk area

Erection of earth conductor for 11kv feeders one from kdh old substn to quarry no. 01 substn another for 11kv feeder from rohini substn to quarry no. 02 substn and 3.3 kv feeder from quarry no. 01 substn to purnadih basti under purnadih ocp, nk area

Towards repairing/overhauling of ht 6.6 kv, 400amp.sl.no.1937 make- biecco lowrie, at coke plant sub-stn. of loyabad colliery under sijua area