CAPITAL MAINTENANCE OF EXISTING 50MVA ECE TRANSFORMER AT 3X160MVA, 220/132KV GRID STATION BARN.

Power Transformers :- A) Checking of Auto starting of fans, External cleaning of radiators,oil pumps OFAF/ONAF,Cleaning and checking of marshalling boxes of transformer/reactor and OLTC. B) Tightening of terminations, Checking of OLTC driving mechanism, Electrical checking/ testing of pressure relief device, Buchholz relay, OLTC surge relay/ checking of alarm/ trip and checking/ replacement of the gaskets of the terminal box, Checking / Tightning of earthing connections, Checking of earth resistance of Neutral, Replacement of Silca Gel of breathers and oil toping of transformers and tightning of bushing clamps on HV/IV/LV sides of 50 MVA power transformer. Checking of space heater and illumination.

Draning/ De-sludging of transformer oil of transformers

Filling of oil, filitration and dehydration of transformer including installation of vacuum pump.

Providing of Transformer Oil(New)

Reparing of cooling fans of transformers including replacement of damaged winding, bearing etc.

Lifting of top lid of power transformer for complete physical inspection & replacement of gaskets.

Replacement of damaged core bolts/Earthning strip etc.

Testing of Transformer:- tandelta testing of bushing/ winding & BDV testing of transformer oil.

DGA and PPM of Transformer Oil from accredIted laboratories.

Testing of Transformer before and after carrying out all the works

Total Amount FOR MATERIAL REQUIRED FOR PLUGGING OIL LEAKAGE AND OTHER PROBLEMS IN 01 NO. 50MVA, 132/33KV ECE MAKE POWER TRANSFORMER Individually to be quoted in relevant Schedule in Financial Bid Packet i.e Schedule-A)