TTPS ES EM II Annual maintenance of LT Switchgear LT Breakers Modules Bus bars and Isolators During the Overhauling period of 2024 25 at ESP I

O/H of 415V LT Panel Releasing the top covers and side covers of the bus chamber checking the IR value and releasing out all the modules. Cleaning the main (Horizontal) bus bars the Vertical busbars and its support insulators checking the tightness of busbar joints, cleaning entire area checking the tightness of outgoing cables. Re-fixing the top covers and side covers of the bus chambers, checking the IR value and satisfactory commissioning.

Removal of LT Breakers from its chamber, cleaning the breaker, removing old grease, tightness checking grease lubricating, Applying acetone to power terminals, meggering checking the closing and tripping operation and put back the breaker again the original position

Annual maintenance of LT modules Removal of modules, external cleaning and tightness checking of terminals, replacement of worn out parts, applying petroleum jelly to finger contacts, greasing of modules and Meggering. SE-I Type module

SE-II Type module

Consumables such as gada cloth, banian waste, Petroleum Jelly, Self thread Bus bar Bolt and cleaning agent WD.40

DURAI ENGINEERING WORKS (BID ID -1076394)