Testing and calibration of protective relays with primary injection test and contact resistance test of 33 kv switches, 3.3 kv switches, 33 kv ct and pt etc at socp, ib valley area

Testing and calibration of protective relays with primary injection test and contact resistance test of 33 kv switches, 3.3 kv switches, 33 kv pts, field switches, starters etc at socp, ib valley area

Testing and calibration of different electrical equipment related to ht installation installed at surface substation vcb ocb mocb transformers sf6 breakers protective relays of khairaha ug and rajendra ug mine of r and k sub area of sohagpur area

For repairing of 11 nos of switches gears of various rating like vcb, ocb,11kv,6.6kv,3.3kv amp.800,400 installed at substation under nichitpur colliery

A) towards repairing/ overhauling and ht breaker, ocb, 6.6 kv, 400a sl n0.- 5754 make-gec at 4 pit sub-station loyabad colliery under sijua area. (b) for repairing 400a, 6.6kv, vcb switch make- andrew yule sl no.- 2843 at no. 3 sub-station mudidih

Testing and calibration of different electrical equipment related to ht installation ocb mocb transformers protective relays of damini ug mine and bangwar ug mine of abd sub area of sohagpur area secl

Repairing, maintenance and attending emergency breakdown of ht electrical installation such as 33 kv mocb, power transformer, 3.3 kv mocb/ vcb, trans switch unit and 3.3 kv/440 volts distribution transformer at colony substation of balram ocp.

Providing with retrofitting of vcb 3.3 kv, 630 amps with trolley in existing gec make ocb panel.