Repairing and rewinding of transformer 3.3kv/440v of 250 kva and 100 kva transformer,&#x0d 3.3kv/440v installed at asnapani maszid mohalla and nicchala mohalla&#x0d under g.m.unit,kathara.&#x0d

Repairing and reconditioning of 400 amp 3.3kv ocb for primary control of 630 kva transformer at 4 no. colony of kathara colliery.

Repairing of 630 kva, 3.3kv/440v, lighting transformer under kathara colliery

Repairing of (a) ocb 550v, 400a, make-reyrolle, sl.no 2rse/649 for filter-bed and (b). 3.3kv switchgear of ocb 200a, 550v, make- reyrolle swg/fb/ocb/03 at filter bed of gvp ph-ii ocp, kathara area

Maintenance and repairing of 01 nos 1mva 11 kv/3.3kv power transformer and 11 kv , 400 amp gec ocb sl.- sar/ocb/01 and 3.3kv , 400a belgium make ocb sl. no.-sar/ocb/02 at 10 no main substation sarubera project under kuju area.

1) upgradation of 400 amps, 3.3kv grade becolarly make, oil circuit breaker (ocb). &#x0d 2) upgradation of 400 amps, 3.3kv grade ece make switch of barmondia colliery under salanpur area.

Repairing of 3.3kv, 400amps biecco lowery make &#x0d ocb switch type nflp, sl.no. m-1956 for controlling of &#x0d 750kva, 400volts transformer of damoda colliery.&#x0d

Installation and commissioning of 2mva, 11kvc, 3.3kv transformer at 9.0 kathara colliery.

For rewinding and repairing of 200 kva, 3.3kv, 440 volt, transformer of kathara colliery under kathara area

Repairing of 3.3kv, 100-amps, m.v. make ocb s.no. sdp/pnm/67 and 3.3kv, 400-amps, biecco lawrie make ocb secondary main controlling switch of 1-mva power transformer of sheetalpur colliery under sodepur area