Repairing and reconditioning of 11kv vcb make electroteknica s.no. 1735 installed with secondary control of on load isolator and 11kv vcb of make meditron s.no. 9480 installed with primary control of bus bar at main substation of karma ocp.

Supply and fixing of ngr 3.3kv 10 amp, 190 ohms for 3 nos., 1 mva, 11kv/3.3kv (2 nos.) and 1.6 mva, 11kv/3.3 kv (01 no.) power transformer installed at main and banwar substation at topa project under kuju area.

(a)complete repairing and rewinding of 01 no. 315kva, 11kv/440v, si.no. wnp distribution transformer used for power distribution to rawani tola under kathara colliery, kathara area. (b) complete repairing /rewinding of 01 no. 250kva, 3.3kv/440v trans

Repairing and rewinding of 10 mva, 33kv/11kv-6.6kv transformer, 3 phase, make kirloskar, sl. no. 82vg-002/1 with testing of transformer from nabl accredited laboratory under kdh project, nk area

Repairing and reconditioning of secondary control panels of dg 200 kva 415 volt and installation of safety devices for primary and secondary control panels of 100 kva 11kv/440volt kel make transformer at karma ocp.

Maintenance of main feeder 11 kv o/h line from 132 kv power sub-station and gt feeder 11 kv o/h line from gt gopalichak to kb-5/6 pits colliery.

Repairing of 2 nos. of 3.3kv, 150amps, mv make ocb primary main of 315kva, 3.3kv/550v power transformer and 250kva, 3.3kv/550v power transformer feeding power to domestic pumps installed at sgp chinakuri substation of chinakuri mine-i under sodepur a

Maintenance and reconditioning of 01 no.1250a, 33kv mocb, make-bhel si.no. 9027893 for primary control of 5 mva transformer 33kv/11kv feeding power to jarangdih feeder from regional substation under kathara colliery.

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.

Partial repairing cork sheet changing stud and bushes and etc of 5000/7500 kva/33kv/11kv power transformer make andreyule at 33 kv golakdih substation.