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

(i)for maintenance of one no.1 mva 6.6kv/550v transformer installed at loyabad colliery make-ece,asset sl.no.arn/14 lbc(ii)complete rewinding and overhauling of a 750 kva power transformer 6.6kv/550v at 5 pit substation of lbc make-ece asset.no.loy/e

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

Rewinding and repair of 63 kva transformer installed at ips-3 (rajiv colony) and replacement of mccb at ips-2 (rajiv colony),jammu contract no sdj/w/101/2026-27

Overhauling of 4 nos 1000 kva oil type transformer including filtration and top up of new tr oil 1 no of earth fault relay master relay available in the 11 kv vcb accessories transport charges available at amma maaligai muthamizh arignar kalaign

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

N plus1 modular type 10 kva ups,static transfer switch with 24u rack with power strip,surge protection devices class b plus c or type 1 plus 2,surge protection devices class c or type,client station cpu with 55 inch or bigger led,client pc with 23 inch monitor along with other accessories,ups cms server each with 23 inch display,ups cms software for and client position,isolation transformer,fire resistant cable multi strand 03 core 6 sq mm,type b curve double pole mcbs 32 amp,type b curve double pole mcbs 63 amp,wall mounted polycarbonate enclosure with transparent door,metallic square channel minimum 3 inches wide,stainless steel flexible conduits minimum 1point5 inches wide,heavy duty copper lugs or thimbles as per power cables,metallic cable glands as per outer diameter of power cables,single core multistrand 6 sq mm copper cable,cost of installation integration testing and commissioning of complete system

Complete repairing/ rewinding of one (01) no.500 kva 3.3kv/550 volt power transformer of sl.no.lph /tr/12 at 1 pit lodna colliery of amal. joyrampur colliery under lodna area.