Complete repairing /rewinding and overhauling of pullen make 120 hp 550 volt 2900 rpm submersible motor and 6 stage pump of dobari colliery.

Auxiliary transformer 80va pri 500 525 550, part no. fs2004c,air breaker contactor 16amps, part no fs2003a,air break contactor 63 amps, part no fs2003e,direct acting thermal overload relay, part no fs2010a,earth leakage relay complete w.o. transf, part no fs2018,pilot relay 12v dc, part no fs2026,auxiliary contactor 2no 2nc 110v 415v 550v, part no fs2020,auxillary cantactor 3 no 1nc 110v 415v , part no fs2020a,i.s. pilot oanel instrinsically safe, part no fs2035,air break contactor 40amps upto 20hp 550v, part no fs2003c,isolator 200 amp,3.3 kv on off, part no ht100,vacuum contactor 400 amps, 3.3kv, part no ht200,bottle vaccum interrupture 400a for cont, part no ht202,auxiliary contactor 3no 1nc, 110v, part no ht208,resin cast p.t. 750va, 3.3kv 110 volt, part no ht300,resin cast p.t 300va 3.3kv 110v, 3 phase, part no ht350,resin cast moulded ct for o l relay 75 , part no ht600,resin cast moulded ct for ammeter 150 5, part no ht650,earth leakage relay unit complete witho, part no ht800,3 pole magnetic o l relay

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.

(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

Complete repairing and overhauling of(tsu ) h.t. primary 3.3 kv 3 phase and l.t. secondary switch 550 volt sl. no. 371181/5 and local id. bccl/lph/tsu/315 kva/38 at lodna colliery of amal.joyrampur colliery under lodna area.

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

Complete repairing/rewinding of 315 kva/3.3 kv/440 volt tsu of electroteknica make sl.no.tsu/1161 used for lighting line at seth kothi colony of east bararee under jeenagora section of amal. nt-st-jg ocp under lodna area.( local ld.jg/tr/315kva/29

(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

Repairing rewinding of ms andrew yule make tsu, serial no. 1697, 315 kva, primary voltage 3.3 kv, secondary voltage 550 v transformer of bangwar ug mines and repairing rewinding of 02 nos. of tsu, 01 no. of mine line make tsu, serial no.377 and 01no.

Complete repairing / rewinding of 315kva,3.3kv/550 volt tsu kirloskar make sl. no.- 93dgb218/33 convert to 315 kva, 3.3kv/440 volt only transformer at bhalgora new pit sub station of aebsc.