Name of Work:REPAIR AND MAINTENANCE OF 1000 KVA SERVO VOLTAGE STABILIZER AT DGISUNDER GE (U) P&M DELHI CANTT
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Item Description
1
Disconnecting and taking down faulty and defective Servo Voltage Stablizers of capacity 1000 KVA , 418 Volts from Plinth with the help of Hydra (Crane) andopening the top cover of the servo stablizer, carrying out the repairs /works listed at serial No. (i) to (ix) for installation including making all the electrical connections complete all as specified and as directed.(i)Decanting of the Servo Volatge Stablizer oil (Transformer Oil)into separateContainer /barrel.(ii)Taking out the core/coil of Stablizer(iii)Fixing only the existing/new buck boost transformer & Dimmer (Variable Transformer) in Stablizer including heating up the core assembly to remove moisture after carrying out the repair works .(iv) Renewal of rubberised gasket set for top cover, Brass spindles, LT bushes etc. (v)Filling of new Stablizer oil after centrifuging and testing for requird di-electric strength.(vi)Re-fixing the top cover of the stablizer with nuts, bolts and washers.(vii) Soldering/ brazing or connecting LV bus bars with sutable size nuts, bolts and washers(viii)Providing necessary insulation papers, sleeves, PVC pipes insulationsheet etc. (ix)Renewal of worn out nuts, bolts and washers.(Note :-Stablizer Oil, Centrifuging of Oil, On Load Change Over Switch & buckboost transformer & Dimmer (Variable Transformer) shall be measured and paidseparately under relevant items) Supply and fixing of Dimmer (Variable transformer) of Servo Voltage Stablizer complete of capacity 1000KVA complete all as specified and as directed.Supplying and filling/topping up transformer oil low viscocity, dielectric strength35 to 40 KV breaking voltage for topping up servo voltage stablizers duly centrifuging including filter action by using automatic centrifuging machine to achievemin 35 to 40 KV breaking capacity at 4 mm gap by absorbing and abolishing all sludge particles for use as per BS-B-66-1983 complete all as specified and as directed..Supply and fixing of electronic card of Servo Voltage Stablizer complete of capacity 1000KVA complete all as specified and as directed.Supply and fixing of analog voltmeter of Servo Voltage Stablizer complete of capacity 1000KVA complete all as specified and as directed.
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