65/ETC-II(P)/2024-2025

Amount

Overhauling of mechanism of 145 KV SF-6 Circuit Breaker (spring type) installed 132KV S/S Manauri, Kaushambi. The job includes overhauling of control assemblies, opening latch, closing latch, support latch, Anti pumping assembly, opening and cleaning of motors charging system, cylinder shock absorber closing damper etc. and adjustment of all type of gaps, cleaning and greasing of levers, connecting rod, cam disc cam and other parts opening of different mechanism assembly for rectification of wear & tear along with rectification/repairing (whatever required) of rollers and linking of mechanism assembly, checking of motor limit switch, auxiliary contractors, power contactors and all electrical connections and tightening them, replacing them if required. ensuring satisfactory operation of breaker from local and remote, testing of closing tripping time along with contact resistance measurement (with standard make CB analyser testing kit) of listed below 132 KV breakers at 132 KV S/S Manauri Kaushambi. All skilled service engineers, materials and T&P required for satisfactory completion of the job is to be provided by contractor. i. 132KV Sirathu Bay - ABB Make SF6 CB ii. 132/33 KV 63 MVA T/F-1&2 HV side - CGL Make SF6 CB iii. 132 KV TBC Bay - ABB Make SF6 CB

alfa engineering (BID ID -5062955)