(a) complete repairing/rewinding of one no.500 kva 3.3kv/550 volt power transformer sl.no.lph/tr/12 at 1 pit lodna colliery and (b) complete repairing/rewinding of one no.400 kva 3.3kv/440 volt lighting transformer sl.no.lph/tr/13 at 1 pit lodna col

(a)repairing of restricted neutral grounding resistor org sl.no. 339 molded model no. sp/e3 manufactured by m/s s.p. enterprises installed in 3.15 mva 11kv/3.3 kv (b) 2 mva 11kv/3.3 kv power transformer at 06 no. sub-station of amal. nt-st-kujama co

Repairing, maintenance and oil filtration of 500kva 3.3kv 440 volt transformer at nakrakonda hospital at nakrakonda kumardihib colliery under bankola area

(a) part repairing of 500 kva lighting transformer, 3.3 kv, 440 volt at officers club and (b) 500 kva lighting transformer, 11 kv, 440 volt at gayatri colony under kathara colliery

Replacement of damaged gasket and oil filtration of 1 mva 11kv 3.3 kv marsons make s no 11531 in cm project of nakrakonda kumardihi b colliery

Complete rewinding/repairing of a) 400 kva 3.3 kv/440 volt lighting transformer sl.no.lph/ltr/13 b)150 kva 11kv/440 volt lighting transformer sl.no.lph/ltr/29 c)50 kva 3.3kv/440 volt lighting transformer sl.no.lph/ltr/31 d)500 kva 3.3kv/440 volt ligh

Replacement of damaged gasket and oil filtration of 1mva, 11kv 3.3kv,marsons make power transformer in c pit substation of nakrakonda kumardihi b colliery under bankola area

Installation and commissioning of 3.3 kv oh line and lighting transformer in nakrakonda oc project at nakrakonda kumardihi b colliery under bankola area

(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) rewinding repairing of one 50 kva 550 415 volt lighting transformer (b) one 200 amps 550 volt a y make acb switch of kumardihi b unit of nakrakonda kumardihi b colliery under bankola area