Repairing, installation and commissioning of current transformer in main incoming sf-6 breaker (main-i) of regional sub-station, kathara area under kathara 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.

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

For dismantling of ocp substation shed of size 50 ft x 50 and dismantling shifting, loading unloading of 1.5mva,6.6kv/3.3kv, transformer of badeopur colliery under sijua area

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

Part repairing of 03 nos., 500 kva, 3.3kv, 440 volt, transformer of masjid transformer, thakur transformer and russian transformer under kathara colliery.

For rewinding and repairing of 200 kva, 3.3kv, 440 volt, transformer of kathara colliery under kathara area

Complete rewinding/repairing of 315kva, 3.3kv, 440 volt transformer make gec local si no-4 and 50 kva transformer of kathara colliery under kathara area.

Erection of 440 volt phase separator in different 440 volt overhead lines of different colonies under kathara colliery.

Part repairing, changing of stud bush, gasket and damaged cable etc. of 500kva lighting transformer, 11kv-3.3kv, 550v-440 volt at 9.0 under kathara colliery township.