NIT No. 15 (22-23) Item No. 17

Servicing, Overhauling, dehydration of 1000KVA Transformer s at Mandawali-I B.P.Station i/c following works :-Disconnection of HT Supply from main HT panel after proper switching off 11KV VCB/OCB discharging the supply , complete drain out of transformer oil from transformer to empty oil drum by oil machine, dismantling of conservator tank all protection relay cable end boxes vent pipe and other items are required.

Cleaning of transformer oil tank & removing of sludge settled in the bottom with the help of vacuum pressure cleaning machine thoroughly, cleaning of core and winding of transformer with hot oil and proper safety precaution to prevent the winding damage as required, cutting of old overheated insulation of winding and reinsulation of weak point with the help of HT insulation material and proper taping etc.

Replacement of top cover gasket vertical vent gasket and missing hardware to stop the oil leakage.

Replacement of silica gel.

Checking and matching of control wiring of all protection relays and calibration of bucclaz relay and protection relay testing the same.

Complete assembling of transformer cleaning of complete transformer tightening of all connection of incoming and outgoing side and testing and checking of IR test with megger of winding and cable both sides with HI pot machine.

Filing of T/oil to up to top up level as required.Make : Savita/Power/ DJB Approved make.

Dehydration & filtration of complete transformer oil and checking the die electric strengthening up to 50 KV at site as required.

Complete cleaning and chemically washing of oily and muddy transformer body.

RUDRA ALLIANCE

Devraj Enterprises

P.K. Electricals

Drise Power Infratech Private Limited

MULTI FIX BUILDCON

Darshan Engineering Works

SUSHMA ENTERPRISES