Repairing of 150hp, 550v star delta starter 02 nos and 200amp 550v acb switch of 7 pit madhusudanpur colliery

For complete repairing and overhauling of ocb, sd -15 make kilburn switch 550v,150a, asst. no. arn/72 sl.no.08595 4 pit loyabad (ii)and repairing of 120 hp,550v,star delta starter, a.t.s type, amba speed make,sl.no.a-223-97 controlling of submersible

1.drawing of 1 new 440 v overhead line (500 m) from no.2 pit substation to agent office, kumardhubi colliery, 2. new 550v overhead line (300 m) from no. 2 pit substation to no. 2 pit fan house at kumardhubi colliery, mugma area, ecl.3.a) drawing of n

(i)for maintenance of one no.1 mva 6.6kv/550v transformer installed at loyabad colliery make-ece,asset sl.no.arn/14 lbc(ii)complete rewinding and overhauling of a 750 kva power transformer 6.6kv/550v at 5 pit substation of lbc make-ece asset.no.loy/e

Repairing of ocb switch of make ,gec,800a,550v/440v si.no.40/0026 to be installed at secondary side of the transformer at 5 pit substation of new akashkinaree colliery under govindpur area

Complete repairing of gec make 800a ocb busbar 550v sl no- 40/0288 at site of pb project colliery.

Complete repairing of 800a, 550v, gec make ocb switch of adi colliery under kusunde area

Complete repairing 400amps ocb gec make,550v of 9 seam of jogidih colliery under govindpur area

Repairing and overhauling of 800a, 440v ocb switch, gec make sl. no. 40/0135 at bhurungia substation under lohapatee colliery

Complete repairing/overhauling of 400 amps 550v gec make ocb sl. no. 314711/117 local id.no. jl/sw/ocb/550v/17 at 2 pit jealgora colliery of amal. joyrampur colliery under lodna area.