Uttar Pradesh Power Transmission Corporation Limited Tender

Overhauling of 01 No. 245 KV Circuit Breaker Alstom make CB No-208 Bus Transfer Bay at 220 KV substation faridnagar. Each pole mechanism assembly of Alstom make 245 KV Circuit Breaker (each breaker have three separate pole assembly) the job include overhauling of control assembly, holding latch assembly, trip latch, anti-pumping pin assembly, motor charging gear assembly & motor brushes overhauling of three phase lever, shock tear, rectification / repairing of roller, linkage of mechanism assembly. Rectification of gas leakage of gas pipe assembly by replacing O-ring & brazing etc. Tightening of all electrical connection satisfactory operation of breaker closing & tripping of the circuit breaker from Local & remote checking & arrest of SF-6 Gas leakage. (i) Replacement of NRV & T-Connector for the suspected SF-6 leaking point. (ii) Measurement of closing/Tripping coil timing with CB analyzer (iii) Measurement of closing /tripping coil resistance & physical condition of coil.