Repairing of 100 KVA HT transformer at Lift irrigation scheme Chainabal of MISP Pattan.

Amount

Mechanical transportation, loading, unloading of transformer using minitruck like Tata mobile, Bolero camper or similar from site to workshop and then from workshop to site after necessary repairs.

Dismantling of 33/0.4 KV or 11/0.4kV transformer by way of disconnecting of all HT and LT connections, opening of top lid, draining out of T. Oil and its safe placement for further refilling, taking out of coils after removal of core assembly, etc. Job also includes detaching of core HV/LV coils.

Rewinding of Aluminium wound 3-Ph 11/0.44kV distribution transformer by way of P/F of HT Aluminium wound coils of proper gauge, insulation by way of using silicon taping, Teflon paper, cork sheet and Bakelite sheets. Complete winding to be done and connections coming out duly insulated. (weight of each coil = 3.5 kg). (Note: The unserviceable scrap aluminium windings extracted shall be property of the firm and is taken into account for estimation of rates).

Deduct the cost of old aluminium scrap retrieved from the motor@80% or as per actual. Note: The unserviceable scrap copper windings extracted shall be property of the firm and is taken into account for estimation of rates (The amount quoted against the item has to not less than Rs. 160).

Dehydration of transformer core in Electrically operated oven and filtration of old oil

Providing of Transformer oil (preffered make: Indian oil servo/HPCL/Power oil)

Providing and fitting of rubber gasket with nuts and bolts to the transformer tank.

Complete assembling of the transformer by way of fitting of HT/LT coils in the tank. Job further includes closing of the transformer lid by way of fitting of existing nuts/bolts and gaskets. Refilling of t.oil upto required level in tank. Reconnecting of HT/ LT connections and testing.