Repairing of 1 MVA, 11KV/3.3KV Power Transformer installed at Parasea OCP Substation.

Amount

Dismantlingof core & winding from transformer tank after draining out of transformer oil, opening of top cover etc

Supply of new electrolyte grade copper conductor for primary coil @876/KG (333 KG) Supply of new elctrolyte grade copper conductor (strip) for secondary coil @876/KG (240 KG) (333 + 240) = 573 KG X 876 = 5,01,948 Less scrap 560 Kg @ 508 = 284480. (501948 - 284480) = 2,17,468

Insulation bare copper conductor for primary & secondary coils by covering double coated manila paper

Formation of coil after rewinding of primary & secondary coil including supply of required insulation materials

Cost of insulation nmaterials, varnish, precompressed board, oil duct, cotton tape

Cost of wooden forma forma for formation of primary & secondary

Providing neoprene gasket of top cover , inspection cover, insulator etc

Cost of brazing rupaton rod, oxygen,DA for brazing of all the primary & secondary connection

Fitting for core channel of primary & secondary coils & winding into the transformer tank

Supply & fixing of new insulator with CU studs, CU nuts, bolts & washer for secondary side

Supply & fixing of new insulator with CU studs, CU nuts, bolts & washer for primary side

Supply & fixing of tap changer switch including mechanism arrangement & alignment with transformer tank

Dehydration & filteration of transformer oil

Installation of 1 MVA, 11KV/3.3KV transformer at Parasea Colliery which includes placement of transformer, pre-commissioning, testing & energized. Details pre-commissioning, testing of transformer 1) insulation resistance test. 2) High voltage [ressure. 3) Vector group test. 4) Magnetic balance test. 5) Voltage ratio on all top position

Transporting charges for both side loading & unloading

Total impact of GST for the purpose of CTC