REPAIR/ MAINT OF VOLTAGE STABILIZER AND MISC WORK AT AF STN AWANTIPUR

Taking down defective Voltage Stabilizer of capacity varying from 25 KVA to 100 KVA of any make and model installed at different location of 8FBSU from pole/structure/ sub-station after disconnecting the connections and removing to sub-station then transporting the same to a reputed work shop for repairs. After repairing the same transporting back the repaired transformer (including loading and unloading) to the directed location. After installing the stabilisers connections of LT has to be done as directed by Engr-in-Charge. Note-Items of repair will be measured and paid separately.

Taking down defective Voltage Stabilizer of capacity varying from 125 KVA to 250 KVA of any make and model installed at different location of 8FBSU from pole/structure/sub-station after disconnecting the connections and removing to sub-station then transporting the same to a reputed work shop for repairs. After repairing the same transporting back the repaired transformer (including loading and unloading) to the directed location. After installing the stabilisers connections of LT has to be done as directed by Engr-in-Charge. Note-Items of repair will be measured and paid separately.

Taking down defective Voltage Stabilizer of capacity varying from 300 KVA to 500 KVA of any make and model installed at different location of 8FBSU from pole/structure/sub-station after disconnecting the connections and removing to sub-station then transporting the same to a reputed work shop for repairs. After repairing the same transporting back the repaired transformer (including loading and unloading) to the directed location. After installing the stabilisers connections of LT has to be done as directed by Engr-in-Charge. Note-Items of repair will be measured and paid separately.

Opening/stripping off voltage stabilizer of capacity 25 KVA to 100 KVA including draining off oil, washing & cleaning duct, dirt & sludge deposit etc. from all parts. Removing damaged/defective parts requiring replacement, making internal connection servicing of bushings and reassembling the voltage stabilizer after repair and replacement work including new cork gasket, packing nuts, bolts, washer, etc. Complete all as directed. Note : Servicing will be done by reputed company rep at site only.

Opening/ stripping off voltage stabilizer of capacity above 100 KVA to 250 KVA including draining off oil, washing & cleaning duct, dirt & sludge deposit etc. from all parts. Removing damaged/defective parts requiring replacement, making internal connection servicing of bushings and reassembling the voltage stabilizer after repair and replacement work including new cork gasket, packing nuts, bolts, washer, etc. Complete all as directed. Note : Servicing will be done by reputed company rep at site only.

Opening/ stripping off voltage stabilizer of capacity above 300 KVA to 500 KVA including draining off oil, washing & cleaning duct, dirt & sludge deposit etc. from all parts. Removing damaged/defective parts requiring replacement, making internal connection servicing of bushings and reassembling the voltage stabilizer after repair and replacement work including new cork gasket, packing nuts, bolts, washer, etc. Complete all as directed. Note : Servicing will be done by reputed company rep at site only.

Repairing and rewinding of main transformer of voltage stabiliser using super enamelled copper winding wire of existing gauge including PVC sheet, sleeve, varnishing etc of capacity 25 KVA to 100 KVA including following repairs : (i) Removing top cover of the Voltage Stabilizer and taking out the complete core assembly from the stabilizer including drain out the oil from the stabilizer and clean the conservator. (ii) Cutting and remove the old burnt coil winding from the limbs and rewinding the limbs by new copper wire as suitable size/ as per existing gauge with proper insulation and varnishing complete. (iii) Reassembling the complete core assembly, connection to the existing electric supply line and testing all as per satisfaction of Engineer-in-Charge.

Repairing and rewinding of main transformer of voltage stabiliser using super enamelled copper winding wire of existing gauge including PVC sheet, sleeve, varnishing etc. of capacity 125 KVA to 250 KVA including following repairs : (i) Removing top cover of the Voltage stabilizer and taking out the complete core assembly from the stabilizer including drain out the oil from the stabilizer and clean the conservator. (ii) Cutting and remove the old burnt coil winding from the limbs and rewinding the limbs by new copper wire as suitable size/ as per existing gauge with proper insulation and varnishing complete. (iii) Reassembling the complete core assembly, connection to the existing electric supply line and testing all as per satisfaction of Engineer-in-Charge.

Repairing and rewinding of main transformer of Voltage Stabiliser using super enamelled copper winding wire of existing gauge including PVC sheet, sleeve, varnishing etc of capacity 300 KVA to 500 KVA including following repairs : (i) Removing top cover of the Voltage Stabilizer and taking out the complete core assembly from the stabilizer including drain out the oil from the stabilizer and clean the conservator. (ii) Cutting and remove the old burnt coil winding from the limbs and rewinding the limbs by new copper wire as suitable size/ as per existing gauge with proper insulation and varnishing complete. (iii) Reassembling the complete core assembly, connection to the existing electric supply line and testing all as per satisfaction of Engineer-in-Charge.

M&L draining out the transformer oil complete quantity of voltage stabilizer of any make, capacity above 200 KVA to 500 KVA and to keep the same in safe containers dismantling all the parts of voltage stabilizer with the help of hand operated crane or other suitable mean, re-fixing the all parts and assembling with the help of hand operated crane or by other suitable means, re-filing the existing drain out transformer oil and testing the voltage stabilizer complete all as specified. Note:- Spare parts shall be measured & paid separately.