For complete repairing and overhauling of ocb, sd -15 make kilburn switch 550v,150a, asst. no. arn/72 sl.no.08595 4 pit loyabad (ii)and repairing of 120 hp,550v,star delta starter, a.t.s type, amba speed make,sl.no.a-223-97 controlling of submersible

Complete repairing and overhauling of one (01) no. submersible starter 550 volt 175 h.p.sl. no.48 local id. no. bar/sub/str/04 sb make and rewinding of auto transformer 3 phase at 6 pit bararee colliery of amal.joyrampur colliery under lodna area.

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

Complete repairing and overhauling of a) 200 amps 550 volt kilburn make ocb switch sl. no.14059 id no bag/sw/ocb/550 volt/10 for power controlling of radha chakki worker colony lighting line b) 200 amps 550 volt kilburn make ocb switch sl. no.1463

Complete repairing /overhauling of 400 amps gec make 550 v ocb switch with busbar id no joy/sw/05 controlling of submersible pump motor at 5 pit joyrampur colliery under lodna area ( local id no bccl/joy-5/sw/ocb/22 )

Repairing and overhauling of 800 amp. 550 volt crompton parkinson make ocb switch with bus bar of jealgora 2 pit colliery id-bccl/jl/sw/ocb/550 volt/07 used as secondary controlling switch of 750 kva 11 kv/550 volt switch of ajc under lodna area.

Repairing of gec make 550 volt ocb at kuiya.

Complete repairing and overhauling of 1 no. 200 amps 550 volt kilburn make ocb switch for power controlling of lighting line switch sl.no. 14020 and id no bag/sw/ocb/550 volt/14 at bagdigi colliery of amal. joyrampur colliery under lodna area.

Complete repairing and overhauling of 01 no.200 amp. 550 volt ocb switch serial no.-0564 local id-jg/sw/ocb/550 volt/6 kiburn make for primary controlling of mari godam colony near jeenagora office of amal. nt-st-jg colliery under lodna area.

Repairing of 800 amp, 550 volt ocb switch at bastacolla colliery