CE-MTPS-I-SE-ES-EM-I-OT 61-2023-24

Amount

i) Station Transformer-II and its 6.6KV bus duct Annual maintenance: Charges for dismantling and assembling of HT / LT terminal links of 31.5 MVA Station Transformer-II.

Charges for general cleaning, water washing, cleaning of bushings, attending oil leaks and tightness checking of all bolts nuts, replacement of silica gel, changing oil in the thermo pockets conducting annual testing and annual maintenance work in ST-II and its NGT & NGR.

Charges for releasing and Re-fixing all inspection covers (31 Nos) of Bus-ducts, checking of Initial IR value, thorough cleaning by applying Acetone/ IPA and checking healthiness of supporting insulators &tightness checking of bus bar joints and checking of Healthiness of Rubber bellows for the In-comer Bus Ducts of C2 Bus.

ii) 6.6KV HT bus C2 Annual maintenance: Charges for releasing the back doors (top and bottom), Bus separator, racking out of HT Breakers/Bus VT and cleaning of all the released doors and checking of IR value of Bus for 1 No. panel.

Charges for complete cleaning of Horizontal, vertical Bus bars Panels and supporting insulators with the help of air blower and Acetone, tightness checking of Horizontal, vertical bus-bars and outgoing power cable terminals for 1 No. panel.

Charges for cleaning and lubricating of all moving parts of HT Breaker upper and lower pole arms, vacuum bottles with Acetone/IPA. All bolts and nuts tightness checking, checking healthiness of Interrupters closing/Tripping operations mechanically and checking of IR value for 1 No.breaker.

Charges for re-fixing of back doors(top and bottom) by providing all bolts and nuts racking in the HT breaker and checking of IR value and satisfactory commissioning for 1No. panel.

Cost of consumables for ST-II and C2 Bus Annual maintenance work.