Repairing and overhauling of 01 no. h.t. switch 11 kv 400 amp.crompton greaves make ocb switch for controlling of 300 kva transformer main switch at bhulan sub-station under bararee colliery sl. no br/sw/03 under lodna area.

Complete repairing and overhauling of 01(one) 400 amps ocb switch 11 kv primary controlling of 11 kv/440v 500 kva lighting transformer e.c.e. make sl. no. jl/sw/48 at dumariyatand jealgora colliery of amal. joyrampur colliery under lodna area.

Complete repairing and overhauling of 1 no. h.t. switch 11 kv 400 amps crompton greaves make ocb switch for controlling of 300 kva transformer main switch at bhulan substation of baraee colliery of amal. joyrampur colliery under lodna area.(local id.

Repairing of h.t. switch 3.3 kv 400 amps andrewyule make vcb switch sl.no. vfht -1161 for power controlling of 500 kva transformer main switch local id no. lc/sw/214 at 1 pit sub-station of amal.joyrampur colliery under lodna area.

Complete repairing and overhauling of 1 no. h.t. switch 11 kv 400 amps bieeco make ocb switch for controlling of 500 kva transformer main switch at huchuktand sub-station of amal.nt-st-jg ocp under lodna area.(local id.no.bccl/nt-st/ ocb/22)

Complete repairing and overhauling of 01 no. h.t. switch 11 kv 400 amp.ece make ocb switch (sl.no kj/10/ ) for primary controlling of 500 kva 11 kv/440v transformer main switch at 3 pit mohribandh sub-station at kujama colliery under lodna area.

Complete repairing and overhauling of 1 no. h.t. switch 11 kv 400 amps ece make ocb switch for controlling of 1000 kva transformer main switch at 5 pit sub-station at joyrampur colliery of amal. joyrampur colliery under lodna area.(local id.no.joy-5-

Complete repairing of biecco make ocb switch 11 kv 400 amps controlling of lighting transformer 250 kva in 3 pit sub-station joyrampur colliery of under lodna area (local id. bccl/joy 3/ sw/ocb/11 kv/06 ).

repairing of safety protection and overhauling of 400 amps ocb switch 6.6 kv make- biecco lawrie,sl.no.1952 controlling of 500 kva power transformer at 20 pit sub-station angarpathra colliery under akwmc katras area

Complete repairing and overhauling of ocb switch 2.2 kv 400 amps.make southern switch gear at bararee high school for power controlling of lighting transformer ( 2.2 kv/440 v) 200 kva at bararee colliery of amal.joyrampur colliery under lodna area.(