Complete conversion of 11KV by 550 V , 550KVA Power transformer to 3.3KV by 550V Power Transformer to 3.3KV by 550V Power transformer installation and commissioning of CM Project at Nakrakonda Kumardihi B Colliery under Bankola Area.

Amount

Item Description/ Heading

Dismantling of core & winding fro transformer tank to drain out of transformer oil , opening of top cover etc

Cost of copper conductor for primary coil

Cost of TPC ( Tripple paper covering ) for Bore copper conductor

cleaning of old insulation of secondary coil such as manila paper , pre compressed board etc and carbon particles total 3 limbs =60KGX 3=180KG

Cost of re insulation of existing bare copper strip of 3 no secondary coils

Cost of insulation materials cotton tape glass tape , pacement paper , synthetic cork sheet nomex paper etc .

Cost of DA oxygen brazing rod

Cost of neoprene synthetic gasket at top cover and inspection cover

Dehydration & filteration of transformer oil to rise the di electric strength of oil up to required value.

Cost of primary terminal bushing with current carrying contacts

Design charges of above transformer from 11KV/550V to 3.3KV/550V

Supply & fixing of tap charger switch including mechanism arrangement & alignment

Installation of 500KVA 3.3KV/550V Transformer at site which included placement of transformer pre commissioning testing & engine details of pre commissioning testing of transformer i)isulation resistence test 2) High voltage pressure test 3) vector group test 4) Magnetic blance test 5) Voltage ratio on all tap position 6) di electric strength of transformer oil.

Cost of painting charges of the above transformer by one coat of primary paint & two coat of metalic paint .

Transportation charges both side up & dowen

Total impact of GST for the purpose of CTC

ELECTRO POWER INDUSTRIES

MAZUMDER ELECTRICAL