Complete rewinding/ repairing tsu (local id no. lph/tr/38) 315 kva of rating 3.3 kv/550 volt of power transformer in 1 pit lodna colliery under lodna area.

(a)repairing of 3.3 kv h.t. primary side 440v l.t. secondary side switch of electroteknica make tsu sl.no.1161 (local id.jg/tr/315kv/29)of seth kothi east bararee ,(b) repairing of tsu 315 kva of h.t. primary 3.3 kv and l.t. secondry 440v secondary

Complete repairing and overhauling of 01 no 315 kva 3.3 kv 550 v tsu at khandra colliery

(a) complete rewinding/ repairing of 315 kva 3.3 kv/440 volt lighting transformer. nt/tsu /315kva /tr/18 (b) complete rewinding/ repairing of 315 kva 3.3 kv/440 volt lighting transformer (tsu) sl.no. ts/824 and local id.no. bccl/nt/315/tr/19

(a)complete repairing of 1 no. h.t. switch 3.3 kv 400 amps biecco make ocb switch for controlling of 315 kva tsu main switch sl. no. 4412 local ld.no.lc/sw/219 at pit lodna colliery (b)complete repairing and overhauling of 1 no. 3.3 kv 660 kw 885 h

Repairing and overhauling of 800 amp. 550 volt crompton parkinson make ocb switch with bus bar of jealgora 2 pit colliery id-bccl/jl/sw/ocb/550 volt/07 used as secondary controlling switch of 750 kva 11 kv/550 volt switch of ajc under lodna area.

Repairing /overhauling of winch reversible starter local id. no. joy-5 st-4 200 h.p. 550 volt 3 phase volga make of amal.joyrampur colliery under lodna area.

Complete rewinding of 315 kva tsu transformer rating 3.3 kv/440 v kirloskar make local id.no. nt/tsu/315 kva/tr/18 of amal. nt-st-jg colliery under lodna area.

For h.t primary 3.3kv, 3 phase, and l.t secondary switch, mineline make (tsu) sl.no.70988 of tetulmari colliery ocp under sijua area

Repairing rewinding of ay make 315 kva 3.3 kv 550 v tran switch transformer of bankola colliery