25 kv potential transformer type-ii of ratio 27.5kv/110 v

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, rewinding and installation of k-sambhav make, 11kv-3.3kv, 2mva transformer installed at chp substation at shyamsundarpur colliery under bankola area.

Repairing and rewinding of 1mva 11kv/3.3kv power transformer sl. no. jrd/trf/1mva/01 installed at new sub-station of jarangdih colliery under kathara area.

Complete repairing or rewinding of power transformer 500kva 11kv, 440v sl. no. jwtp,dam site,01 installed at dam site jwtp under block ii area.

Complete repairing and rewinding of 11kv 400v, 500kva, 3 phase lighting transformer, make ngef, sl. no. 28.0002.2206, for providing domestic power supply to sector 6, matigarha dam site under block-ii area.

33 kv outdoor pt, highest voltage 36 kv, ratio 33 kv/n3: 110 v/? 3, accuracy class 0.2 & 3p, burden,33 kv current transformer outdoor type (voltage class: 36 kv rms, type: oil-filled (outdoor) , core:,33 kv outdoor metal oxide gapless lightning arrester, rated voltage 30 kv, highest system voltage 36

Complete repairing and overhauling of one (01) no. submersible starter 550 volt 175 h.p.sl. no.48 local id. no. bar/sub/str/04 sb make and rewinding of auto transformer 3 phase at 6 pit bararee colliery of amal.joyrampur colliery under lodna area.

Ampere meter 4inch ratio 200 100 5 5a part no spl406,volt meter 3.3kv 100v part no spl106,ammeter selector switch part no srp136ma,voltmeter selector switch part no srp135vs,earth leakage relay 0.34 to 1.8a aux supply 110v cbct part no ekjrc172,wiring kit part no ek805888,epoxy resin cast ct double core 15va ratio 200 100 5 5a part no ct5300,epoxy resin cast potential transformer 3.3 kv 110v 3phase part no et08002,power pack unit 110v dc part no ek801025

Taking down of step up and down transformer 160kva after dismentling ht lt,gasket 6 mm thick superior quality on top cover plate,lt porcelain bushing with brass stud screwed with brass nuts bolts,ht 11 kv porcelain bushing with brass stud screwed with brass nuts,painting of transformer of rating 160 kva and voltage stabilizer with two coat,supply filling and top up with new transformer oil of electric strength,filtration dehydration of transformer oil of three phase servo voltage,rewinding of transformer 160 kva complete using appropriate size of copper,shifting of transformer from work shop to af stn including connecting,material and labour for arrange temporary power supply through comercial,trimming of tree branches to clear the ht lt oh lines girth span