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.

A)partial repairing and safety protection providing of 400 amps 11 kv biecco lowrie make ocb sl.no.116-1956 (b) complete repairing/overhauling of 400 amps 550v ocb switch sl. no. bccl/jl/sw/ocb /550v/10( c ) partial repairing of 250 hp 550v auto star

(1) repairing and overhauling of 200a,550v,sl.no.10962 kilburn make,gtc unit,agkcc.(2) complete repairing of 400 amps ocb switch make biecco lawrie 6.6 kv sl.no.116937 controlling for 300 kva lighting transformer at old area office sub-station akwm

Repairing and overhauling of a) gec make 550 v 440 v 600 amps ocb b) kilburn make 600 amps 550 volt ocb c) kilburn make 400 amps 550 volt acb d) abc make 400 amps 550 volt acb at nakrakonda kuamrdihi b colliery under bankola area.

Complete repairing/overhauling of (a) 175 h.p. auto starter 550 volt 3 phase and rewinding of auto transformer for k.t. submersible of pullen make local id. no. 19 of jeenagora section (b) 800 amps 440 volts acb switch of abc make installed at huc

Complete repairing/overhauling of (a) abc make installed at 06 no. siding of 800 a 550 volt org sl-370 local id nt/sw/acb/550v/60 controlling of lighting line supply to golakdih basti (b) 400 amps 11kv ocb switch bushbar biecco lowrie

Repairing of 11 kv 400 amps gec make ocb switch ctr-60/5a for primary controlling of 1000 kva transformer installed at mocp office colony sector-i( local id no. bccl/nt/sw/11)(b) complete repairing of 11 kv 400 amps vcb switch sl. no. 3652

Repairing/overhauling of 1 no. 400 amps 11 kv ece ocb switch ( sl. no. 2152166) local id. no. kj/sw/ocb/11kv/02 for power controlling of lighting line at m. pit of kujama colliery under lodna area.

Complete repairing 3 nos. of sd-15 (i) 200 amps 440 volte make kilburn installed at huchuktand sub-station of 09 no. siding( local id bccl/nt/sw/ocb/440 volt/52) (ii) 440 volt 200 amps kilburn make main switch of l.t. switch and (iii) 440 volt 200

Complete repairing of 11 kv 400 amps ocb switch make southern gear ( local id no. bccl/nt/sw/11kv/61) and serial no-0762/945 at amal. nt-st-jg colliery under lodna area.