Maintenance and repairing of 1 mva, 11kv/3.3kv power transformer, 01 nos. 1.6 mva, 11kv/3.3kv power transformer and 750 kva 3.3 kv/440 volt transformer at site of karma project under kuju area.

Rewinding of 15kva, 550v/220v lighting transformer, of view point area of east basuria colliery

Repairing/rewinding of a) 630kva, 6.6kv/440v lighting transformer running at hizukita village. b) 315kva, 6.6kv/440v lighting transformer running at lohandia basti. c) 100kva, 6.6kv/440v lightning transformer running at lalmatia sub-stn of rajmahal

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

Repairing and rewinding of induction motor, lighting transformer, acb switch at pandaveswar colliery and repairing of transformer, induction motor, motor, udm motor, drill panel at khottadih colliery

Rewinding, repairing and testing of 04 nos lighting transformers bearing sl no m66438,7409, 7413 and 7408, 25 kva, 6600 220 volt for use in the mine illumination at jhingurda project.

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.

Power supply of 3.3 kv and 415 v to railway siding no. 5 for operation of 5 nos. fog cannons and lighting, including shifting of transformer, etc., to railway siding no. 5, providing lighting along the newly constructed coal transporting road etc

(a) erection /dismantling of poles along with conductors and other associated accessories 3.3 kv o/h line (feeder 1, feeder 2 , feeder 3 and feeder 4), and installation of 11 kv grade goab switch, installation of lighting transformer, switch shifting

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