Repair of 630 KVA voltage stabilizer of Pumping Station Tawi High Lift

Restoration / repair of 630 KVA voltage stabilizer of Pumping Station Tawi High Lift by way of disconnecting all electrical connections and bypassing the power supply. Dragging out the stabilizer from Platform. Dismantling of voltage stabilizer by lifting the top assembly with the help of chain pulley block, extracting out of its main coil 3 nos., and voltage regulators – 2 nos., after dismantling all electrical connections. Complete rewinding of 2 nos. main transformer coils out of superior quality copper wire and insulated material as per original specification. Cleaning and refixing to the core after proper insulation. Providing and fitting of Rotary switches 1 no. Reassembling the transformer assembly. Making connections of regulators with the transformer coils. Replacement of damaged internal control wirings, refitting of panel on transformer assembly and re-fixing of top assembly into the oil tank and dragging to the platform in the pumping room. Refitting the old T oil after cleaning and heating to remove moisture and carbon and topping up the level by adding 295 ltrs. Fresh T-oil. Making electrical connections. Complete job including cost of material, labour charges and testing the voltage stabilizer on full load.