NIT No. 11 (20-21) Item No. 1

Disconnecting of HT supply from main HT panel after proper switching off 11 KV VCB discharging the supply. Complete draining out of transformer oil from transformer to empty oil drum by oil machine, dismantling of conservator tank all protection relays cable end boxes vent pipes and other items as required.

Cleaning of transformer oil tank and 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 precautions to prevent the winding damage as required, cutting of old overheated insulation of the winding and re-insulation material and proper taping etc.

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

Replacement of silica gel.

Complete assembling of transformer cleaning of complete transformer tightening of all connection of incomer and outgoing side and testing & checking of the IR values with megger of winding and cable on both ends with HI Pod machine.

Replacement of transformer oil make: Savita/Power.

P/Fixing of winding protection pad.

Dehydration & filtration of complete transformer oil and checking the die-electric strength upto 50 KV at site as required.

Complete cleaning and chemically washing of oily and muddy transformer body and painting of the transformer with enamel paint.

Complete testing of transformer on load and off load.

GOGIA BROTHERS