e- NIT No. MICD 53 OF 2025-26 Dated 12-02-2026 Repairs to 250 KVA, 11/0.4 KV HT Transformer at Lift Irrigation Station Noukoul Rafiabad

Repairs to 250 KVA aluminum wound HT Transformer at lift Irrigation Scheme Noukoul by way of

Mechanical transportation, loading, unloading and handling of 250 KVA HT Transformer from site to workshop and back after necessary repairs in a private Tata mobile/ minitruck/bolero camper or in any other vehicle

Dismantling of 250 KVA HT 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.

Providing and fitting of finished new aluminum wire windings with insulation in place of damaged windings including labour costs, etc.0ne No LV coil and 4 No HT coils.

Providing and fitting of Hot dipped galvanized MS nuts, bolts and washers of assorted sizes

Providing and fitting of 5 mm thick Neoprene Rubberized Gasket Sheet.

Providing and fitting of brass metal part stem with allied fittings of transformer bushings (HV/ LV),

Providing and fitting of 630 Amp (LV) bushings to transformer.

Providing and filling of fresh T-oil of reputed make as topping to transformer

Filtration of existing/reclaimed Toil on site at suitable temperature (inclusive of all logistics and charges for filtration plant, etc) (process loss maximum of 5% allowed)

Complete assembling of 250 KVA 11/0.4 kv transformer after cleaning of tank, fitting of coil assembly in the tank. Job further includes closing of the transformer lid by way of fitting of existing nuts/bolts and gaskets, insulators, etc. Refilling of toil upto required level in tank. Reconnecting of HT/ LT connections and testing.

Credit valve of aluminum scrap (80 % of above)