Tender For Transformer Maintenance -PREVENTIVE MAINTENANCE OF INDOOR ONAN TRANSFORMERS OF NAME PLATE RATING UPTO AND INCLUDING 2000KVA THE SCOPE OF WORK SHALL INCLUDE 1CLEANING: A.CLEANING OF TRANSFORMER ROOM FLOOR, WALLS AND ROOF ALONG WITH WALKING CORRIDOR. B.CLEANING OF TRANSFORMER OUTER SURFACE OF TANK, RADIATORS, CONSERVATOR, MOG, OIL LEVEL GAUGE, HT AND LT BUSHINGS AND DRYING OF OILY SURFACE. C.OPENING OF BUSHING CHAMBERS AND CLEANING OF CHAMBER AND BUSHINGS THERE IN. D.CLEANING OF ISOLATOR INSIDE TRANSFORMER ROOM AND ITS SUPPORTING INSULATORS. E.CLEANING OF MARSHALLING BOX AND INSTRUMENTS THERE IN F.CLEANING OF TRANSFORMER ROOM VENTILATION/EXHAUST FANS & CLEANINGOF FILTERS OF VENTILATION FAN G.CLEANING OUTER SURFACE OF HT & LT BUS DUCT. 2CHECKING OIL LEVEL A.ARRESTING OF OIL LEAKAGE FROM BUSHINGS, RADIATOR FLANGE, BUCHHOLZ FLANGE OR ANY OTHER PART OF THE TRANSFORMER BY TIGHTENING THE FLANGES/CHECK NUT/VALVES/STOPPERS OR REPLACING OIL SEAL/GASKETS/¿O¿ RINGS AS HE CASE MAY BE. B.TOPPING OF TRANSFORMER OIL UP TO THE LEVEL MATCHING WITH TRANSFORMER TEMPERATURE. TOPPING OF TRANSFORMER OIL IN THE OIL POCKET MEANT FOR OTI/WTI. C.COLLECTION OF OIL SAMPLE FROM THE SAMPLING VALVE OF THE TRANSFORMER AS DIRECTED BY THE REPRESENTATIVE OF THE DEPARTMENT AND DEPOSITING THE SAME AT THE TESTING LABORATORY OF RSP. (DEPOSITING AND COLLECTION OF SAMPLING BOTTLES AT RSP LABORATORY TO BE DONE BY PARTY.) 3CHECKING CONNECTIONS A.CHECKING AND TIGHTENING OF HT, LT, N- BUSHING CONNECTIONS BY APPLYING REASONABLE FORCE TO AVOID BREAKAGE OF BUSHINGS. (CONDITION OF PRIMARY & SECONDARY STUD / TERMINAL TO BE CHECKED.) B.CHECKING AND TIGHTENING OF NEUTRAL EARTHING CONNECTION AND BODY EARTHING CONNECTION. C.CHECKING AND TIGHTENING OF CONTROL CONNECTIONS OF BUCHHOLZ RELAY, TEMPERATURE GAUGES AND OTHER SENSORS. REPLACEMENT OF OTI/WTI IF REQUIRED SHALL BE DONE AS PER THE DIRECTION OF MAINTENANCE I/C. 4REPLACEMENT OF SILICA GEL A.CLEANING THE BREATHER HOUSING AND REPLACING BREATHER OIL WITH FRESH OIL. B.ASSESS CONDITION OF SILICA GEL AND REPLACE SILICA GEL IN THE BREATHER. 5LUBRICATION A.CLEANING AND LUBRICATION OF TRANSFORMER ROOM DOORS/ ROLLING SHUTTERS/ WICKET DOORS / MARSHALLING BOX HINGES TO ENSURE SMOOTH OPERATION. B.LUBRICATION OF TRANSFORMER WHEELS, etc.
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