MID/AN/98

Repairs to 63 KVA electrical transformer with allied works at LIS Lower Manda. The job involves disconnecting all the electrical connections and loading in the vehicle with the help of crane and shifting to workshop with mech. transport. Disassembling the transformer at workshop by unscrewing the bolts of top cover and extracting the damage coils with chain pulley block. Rewinding its 3 nos. H.V. coil &3 nos. L.V. coils with superiorAluminium wire of requisite size/gauge. Heating the rewinded coils to attain the required megger value. Providing and fitting of 3nos.HV&3 nos. LV bush rods with the new bush rods as per sample.Providing /Fitting of new gasket, L.T. terminal plate, nuts, bolts, insulators etc. Cleaning of the tank and drying it. Providing/Topping up of 150 litres transformer oil and heating the oil to make it moisture free. Lowering the windings back in the tank Assembling the transformer by tightening all nuts, bolts and using oil packing sheets wherever necessary. Loading in the vehicle and shifting back to site . Job includes placing of transformer on the platform with the help of crane using skilled manual labour. Fitting the transformer and restoration of electrical connections. Testing & commissioning on full load.. Complete job including cost of material, skilled and semi-skilled labour charges, loading & unloading at both ends and transportation charges as per site conditions of LIS. ( Qty.-01 Complete Job) Repairs/replacement of burnt out parts of 20 HP FASD starter of pumping unit no. 02 at LIS Lower Manda. The job includes disconnecting the power supply of the starter and replacement of the damaged/burnt 40 Ampere contactor (01 no.) by providing fitting of 01 no. new 40Ampere contactor (of reputed make), replacement of the damaged/burnt 63 Amp max Overload relay (01 no.) by providing fitting of 01 no. new 63 Amp max Overload relay (01 no.) (of reputed make), replacement of the damaged single phase preventor (01 no.) by providing fitting of 01 no. new single phase preventor (01 no.) (of reputed make). Providing and fitting of Providing/ fitting of new copper thimbles of suitable rating duly crimped and taped etc. Complete job with the cost of the material, transportation charges and skilled / semi skilled labour charges at the site of LIS. ( Qty.-01 Complete Job)

N B Engineering and Electric Works (BID ID -2282013)

M/S HITAISHI ELECTRICALS AND MECHANICAL WORKS (BID ID -2284139)