Complete rewinding and repairing of primary and secondary breaker of andrew yule make 315 kva 3.3kv-550v sl no sspay03 transwitch transformer at shyamsundarpur colliery

Complete repairing and re-winding of (a) 02-nos. 500 kva, 3.3kv/440v (b) 01-no. 250kva, 3.3kv/440v and (c) 01-no. 160 kva, 11 kv/440 distribution transformers installed at different locations of kathara colliery under kathara area.

Supply, installation, testing andcommissioning of ngr 3.3 kv protection system in 33kv/3.3kv power transformers and 3.3kv dg set at 33kv s/s and ngr 440v protection system in 3.3kv/550v/440v power transformers at ncph, ra and vw ug mines of chrm ar

Complete re-winding and re-insulation of 1 no. of 200 kva flp tsu, type t3sob200/6 with sl.no. 679573, 1 no. of 315 kva flp tsu, type t3sb315/6 with sl.no. 79154399 for the main substation, moonidih

Repairing and rewinding of 02 nos. of distribution transformers, 250kva, 11kv/440v and 250kva, 3.3kv/440v installed at cisf colony and gurudwara chowk under gm unit nk area.

Repairing and rewinding of (a) c.g make 100 hp, 550v non flp slipring motor and (b) k.e make 12.5 hp, 550v, 720rpm flp motor of bankola colliery.

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

Complete rewinding repairing of 315kva, 3.3kv 550v 440v transwitch unit (tsu) of shyamsundarpur colliery under bankola area.

Repairing n rewinding of 315kva, 3.3kv/550v tsu of amritnagar colliery.

Rewinding and con of 315 kva,3.3kv/550v transformer to 11kv/440v 450kva for lighting load at ena colliery substation