NIT No. 15 item No. 4 (24-25) EE (T)/EE(EnM)M-4

Disconnecting of HT Supply from main HT panel after proper switching off 11 KV VCB & discharging the supply. Complete drain out of transformer oil from transformer to empty oil drum by oil machine and dismantling of conservator tank all protection relays cable end boxes, vent pipes & other items as required. DJB SOR 6.1.1

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 precaution to prevent the winding damage as required, cutting of old overheated insulation of winding and re- installation of weak point with the help of HT insulation material and proper taping etc. DJB SOR 6.1.2

Replacement of Top Cover gasket vertical vent gasket & missing hardware to stop the oil leakage DJB SOR 6.1.3

Replacement of silica gel DOB SOR 6.1.4

Checking & matching of control wiring of all protection 5 relays and calibration of buchholz relay and protection relays testing the same. DJB SOR 6.1.5

Complete assembling of transformer cleaning of complete transformer tightening of all connection of incoming and outgoing side and testing & checking of IR test with megger of winding & cable of both sides HI pot machine. DOB SOR 6.1.6

Filling of transformer oil to up to top up level as required. Make – Power DOB SOR 6.1.7

P/F of winding protection pad. DOB SOR 6.1.8

Repair of cooling fins, replacement of cooling fins gasket and oil seal for stopping the leakage. DJB SOR 6.1.9

Dehydration & filtration of complete transformer oil &and checking the die electric strength up to 50 KV at Site as required. DJB SOR 6.1.10

Complete cleaning and chemically washing of the oily and muddy transformer body and painting of the transformer with enamel paint. 6.1.11

M/s AADRIKA ASSOCIATES (BID ID -1563433)

NEW INDIA ELECTRICALS (BID ID -1563733)

Devraj Enterprises (BID ID -1563711)

GOGIA BROTHERS (BID ID -1563449)

Gupta Brothers (BID ID -1563693)

M G Traders and Engineers (BID ID -1563673)