Repairing and rewinding of 1mva 11kv/3.3kv power transformer sl. no. jrd/trf/1mva/01 installed at new sub-station of jarangdih colliery under kathara area

Partial repairing and installation of e/f relay and o/c relay in 11kv, 400a, ocb which is the main incomer at ena colliery substation, with sl. pb-4 9052 at ena colliery under kusunda area

Partial repairing of 11 kv, 400a, biccolauric make, ocb which is primary controlling of 11kv/3.3kv,1500kv transformer-1 installed at rk camp at s/s of ena colliery.

Partial repairing of 11 kv grade, 400 a ocb, make crompton greaves sl. no. - ena ocp/ocb coupler/01 for ena colliery, kusunda

Maintenance of i) 11kv /550v, 500kva transformer at ena colliery s/s ii) 11kv /550v, 500kva transformer at rk camp s/s under ena colliery, kusunda area.

Repairing of 400a ocb switch, gec make, 440v, sl. no. 30/2152 of abg colliery

Repairing/overhauling of 3.3kv grade, 400a, vcb, make-prabhu, si.no.-99/2010 at ena colliery, rk camp s/s.

Repairing of 11kv 400a crompton greaves ocb sl. 27902g at bottom pit 11kv substation at industry colliery, adic

Repairing of 11kv, 400a, ocb, make gec, si. no. 5106 installed at 4 seam s/s of adi colliery

Installation of 11 kv /440v, 750kva lighting transformer and other miscellaneous maintenance work at ena s/s of ena colliery, kusunda area.