(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

Rewinding and repairing of 04 mva transformer 33 kv 6point6kv 3 point 3 ht power transformer sl no 1212440 make m and b switchgear ltd of amlai ocm of sohagpur area secl

Changing of gasket and studs of 1000 kva 11kv/550 volt power transformer sl.no. 17189 and id.no. 07 at 7 pit sub-station of jealgora colliery under lodna area( local id.jel/tr/1000 kva/07).

Partial repairing stude gasket and cooling tube cleaning of 300 kva 2.2 kv/440v 3 phase marson electric make lighting transformer at jealgora 7 pit old sub-station sl.no. 12537 colliery id no. jl/tr/300 kva/11 of amal.joyrampur colliery under lodna

Partial repairing 1.5 mva 11 kv/550 volt power transformer make electric construction and equipment co. ltd at new sub-station at 7 pit jealgora sl.no. c-6519/82 local id. jl/tr/08 at jealgora colliery of amal.joyrampur colliery under lodna area.

Changing of gasket and studs of 500 kva 11 kv/440 volt lighting transformer sl.no. 4015044 and id.no. kj/tr/500kva/04 at m. pit sub-station of kujama colliery under lodna area.

Partial repairing of 750 kva 11kv/550 volt power transformer make crompton parkinson sl.no. 13609 at 2 pit jealgora sub-station local id. jl/tr/04 at jealgora colliery of amal. joyrampur colliery under lodna area.

Complete repairing of g.e.c. make ocb switch(local id.no. jl/sw/16) 11 kv 400 amp.controlling of power transformer 750 kva in 2 pit sub-station jealgora colliery of amal.joyrampur colliery under lodna area.

Changing of gaskit and studs of 500 kva 11 kv/550 volt power transformer local id. gj/tr-3 at golden sub- station of amal nt-st-jg colliery under lodna area..