Repairs of 50 KVA oil immersed, manually operated, 3-phase voltage sabilizer at Water Supply Scheme Bemina.

Repairs to 50 KVA oil immersed, manually operated, 3-phase voltage stabilizer. A. Preliminary works: - • Disconnecting all incoming and outgoing electrical connections of the voltage stabilizer. • Opening and removal of top lid for access to internal components. • Careful dismantling of voltage regulator, core and associated internal parts. B. Dismantling, Inspection & Fault Rectification. • Dismantling of voltage regulator and core assembly. • Detailed inspection and diagnosis of faults in windings and magnetic core. • Rectification of identified electrical and mechanical defects. C. Rewinding of Damaged Phase Legs: - • Rewinding of 01 Nos. damaged phase legs by removal of burnt/damaged winding wire. • Rewinding with new electrolytic grade copper conductor suitable for 50 KVA rating. • Drying and baking of rewound coils to ensure proper insulation. D. Transformer Oil Topping-Up • Topping -up of stabilizer with fresh transformer oil up to 20 Liters. • Transformer oil to conform to IS:335 specifications. • Rates include rebate on old scrap material (approx. 15 Kg), and to fro charges from WSS to workshop and vice versa. • Connecting back the repaired voltage stabilizer to the electrical system and testing of the voltage stabilizer on no load and then on full load.