Repairing of 315 kVA 6.6 kV/550V Andrew Yule make TSU Sl. No. T-192 and 500 kVA 11kV/550V CP make electric transformer of Khottadih Colliery under Pandaveswar Area.

Amount

Repairing of 315 kVA 6.6 kV/550V Andrew Yule make TSU Sl. No. T-192 of Khottadih Colliery under Pandaveswar Area. (Inclusive of EPF/CMPF)

Dismentling of core winding after removal of all connection, dismantling of coils from core weighment from Transformer tank

Cost of glass board, nut bolts and other hardware materials

Cost of silver braxing electrodes, DA, Oxygen

Fitting of reformed coils in the limb with required insulation

Dry-up & testing of T.S unit transformer

Cost of new electrolyte grade copper conductor due to damaged primary coils

Cleaning/decarbonizing of old serviceable primary and secondary coils

Reinsulation of primary and secondary both copper conductor by DGC/Nomex insulation

Reformation of both coils with required insulation materials

Class of class F varnish and thinner with baking drying at recommended temperature

Less scrap copper strip burnt primary coil

Transportation

OH and Profit

Repairing/rewinding of 500 kVA 11kV/550V CP make electric transformer of Khottadih Colliery under Pandaveswar Area.(Inclusive of EPF/CMPF)

De-tanking of core & winding after removal of top cover

Removing of tap switch, top core & winding

New DPC coated copper conductor for replacement of brittle primary and secondary conductor

Cost of H.T. grade insulating materials for formation of primary coil

Cost of H.T. grade insulating materials for formation of secondary coil

Cost of insulating materials for assembling of core and winding

Cost of Gaskets, silver brazing rod, Bakelite tubes and other hardware materials

Formation of primary coils as per original shape and size

Formation of secondary coils as per original shape and size

Assembling of core and winding

Cost of improvement of I.R. Value-

Cost of new Bushing assembly for L.V. side

Re-fixing of bushing terminal with bushing of both side and necessary connections with winding and tap switch

Re-tanking of core & winding.

Re-conditioning of tap changer switch with required materials

Top up of Transformer oil after de-hydration and filtration & BDV test of transformer oil

Re-fitting, painting & testing the repaired transformer

Handling charges of above Transformer.

Less scrap copper value

OH and Profit

Total impact of GST for the purpose of CTC

ROY ENTERPRISE (BID ID -1115240)

NEW ELECTRICAL CONCERN (BID ID -1115245)