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

Complete rewinding and repairing of 167 hp 550 volts motor of east baseriya colliery under kusunda area

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

A)complete repairing/rewinding of 63kva 3 phase 3.3kv/230 volt transformer, make- transgietz enterprises, sl. no.-224 installed in dakra mines in respect of dakra project. b) preventive maintenance of 100kva 3.3kv/440v transformer sl. no.- local sl.

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

(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

Complete repairing rewinding and overhauling of pullen make 120 h.p.550 volt 2900 rpm 6 stage submersible motor and pump set local id. no.joy/ss/120 hp/ at joyrampur colliery of amal. joyrampur colliery under lodna area.

Complete repairing/rewinding of transformer 500 kva,2.2 kv/550 volt power transformer make eef(bsidc)colliery id. no.bar/tr/500 kva/18 sl. no-4009172 of bararee 1 pit sub-station under amal. joyrampur colliery under lodna area.

Complete rewinding/repairing of 120 hp 550 volt 1480 rpm c.g. make motor(local id no. joy/3/m/7) for surface pump of amal. joyrampur colliery under lodna area.

Rectification and maintenance of 550 volt overhead line of laxmi colony from bararee 6 no. sub-station at bararee colliery of amal. joyrampur colliery under lodna area.