Repairing/overhauling of 800a 550v/440v abc make, air circuit breaker sr 375 installed at central pool substation under sijua area. (ii) repairing of 350a 550v sr no340222 flp type make erskine heap co. ltd. ocb switch at loyabad workshop un

Repairing of kilburn 200amps and abc make 300amps, 550v acb switch gear of dhemomain incline colliery under sodepur area. 2.repairing of 150hp, 550v, kilburn make dol er of dh

1. repairing of 550v mineline make gate end box breaker for sdl of dhemomain incline colliery under sodepur area. 2.repairing of 200a, 550v abc make acb of dhemomain i

1. complete repairing of 200-amps, 550v, abc make acb switch at 10l/13d main for sdl m/c no.-1137 of mithani colliery under sodepur area. 2.repairing of 400-amps, 550v, oil circuit breaker (switch) r/b make of mit

1.repairing of 3.3kv, 400amps reyrolle burn make ocb switch s.no. mith/pnm/19 of mithani colliery under sodepur area. 2.repairing of 3.3kv/100amps air circuit breaker (switch) of mithani colliery u

Repairing of one no of biccolowrie make, 400 amps, 11kv ocb, primary main of 1 mva transformer at surface substation and one no acb make 200 amps, 550v, abc of parbelia colliery under sodepur area.

Complete repairing / overhauling of 11 kv 400 amps, ocb switch, make gec colliery code no kc/sw/03 sl no 5664 at site of kustore colliery.

Complete repairing/ overhauling (a) 350 amps sd-15 ocb switch kilburn make 440 volt with original sl.no. 0696 (b) 400/300 amps gec make ocb switch 550v with local id. no. jg/sw/400-300a /66 (c) repairing and replacing of defective accesories of 1 no.

Repairing of flp acb switch of make mine line pvt. ltd.,200a,550v,si.no.5170 of 1 seam of haulage motor controlling switch of new akashkinaree colliery under govindpur area

Complete repairing/ overhauling (a) 350 amps sd-15 ocb switch kilburn make 440 volt with original sl.no. 0696 (b) 400/300 amps gec make ocb switch 550v with local id. no. jg/sw/400-300a /66(c) repairing and replacing of defective accessories of 1 no.