Repairing /overhauling of 11kv, 400a ocb sl.no.pcw1 of patherdih coal washery

For repairing of incomer 400a,6.6kv, ocb switch sl.no. bsp/switch/06 make ferguson at ekra substation basdeopur colliery under sijua area

Repairing, rewinding and installation of k-sambhav make, 11kv-3.3kv, 2mva transformer installed at chp substation at shyamsundarpur colliery under bankola area.

Maintenance and reconditioning of 2 nos. vcb (11kv and 6.6kv, pce make), 2 nos. ocb switch (11kv, 800 amp, gec make), sf6 abb make breaker (33kv, 1250 amp), maintenance of ct, and repairing of 11kv capacitor bank control panel at central substation

Complete repairing and overhauling of 11kv 400 amps ocb with busbar switch crompton greaves make sl no 23599g at site in chandro sub-station gopalichak colliery.

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

Complete repairing and overhauling of 800a, 550/440v ocb with busbar switch ece make sl no - 6597 at site in chandro sub-station gopalichak colliery.

Repairing of crompton greaves make ocb 11kv, 400a, ctr-200-400/5a, switch gear, ref. no. 2516-1980 all main no. (1) 11kv switch gear 33/11kv substation nlocp.

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

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