Installation and commissioning of negative sequence relay in 11kv 400amp. ocb make crompton greaves of 4a patch substation of bhowra south colliery.

Repairing of 11kv 400amp ocb switch make crompton greaves si no. not available of jarangdih colliery.

Installation and commissioning of negative sequence relay in 3.3kv 400 amp. ocb make bicco sl no 116 1952 of 4a patch substation of bhowra south colliery.

For repairing of ocb 11kv, 400amp. make-biecco lawrie sl.no.pb4/12864 at nichitpur substation under sijua area

Repairing and reconditioning of 11kv 400amp biecco lowrie ocb of bastacolla colliery.

Partial repairing of 11kv 400amp ocb switch crompton greaves make at ena ocp, kusunda area

For repairing of 11kv,400amp,ocb switch gear sl.no.5790 make gec installation at deco camp substation nichitpur colliery.

For complete repairing and overhauling of 250kw, 3.3kv 400amp star delta starter make-mine line sl.no.1328 at npc(ii)and repairing of 11kv 800amp ocb make-biecco lowrie installed at deco view point substation of nichitpur colliery.

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

Repairing and reconditioning of one no. 11kv 400amp. vcb and one no. 3.3kv 400amp ocb switch of kuju colliery under kuju area