SP.129 NCTPS II ES circle EM I Division Unit I and II Running contract for the Maintenance of Switchyard and DG Sets equipments from the date of commencement of work for the period up to 31 March 2026 from the date of taking over of site.

Amount

Daily Maintenance: Monitoring and observing for any abnormality in Gas insulated switchyard breakers, isolator, earth switch in 230KV and 400KV switchyard, 230 & 400 KV AHU, ACDB, DCDB, HVAC, Reactor I & II, Swyd Service Transformer-I & II, D.G set control panels, Battery Charger-I & II, Battery Bank I &II as instructed by our maintenance engineer, including consumables & Hire charges for T&P.

Weekly Maintenance: (a) Cleaning of Gas insulated switchyard breakers, isolators , earth switch in 230KV and 400KV switchyard, 230 KV and 400 KV AHU, Reactor I & II , ACDB, DCDB, HVAC, D.G set ,Battery Charger panels as instructed by maintenance Engineer, including consumables & Hire charges for T&P.

(b) Measurement of Specific Gravity, voltage, D.M water Top Up for Batteries and including consumables & Hire charges for T&P.

Monthly Maintenance: Module maintenance (Tightness checking of control wiring and power cable) of ACDB Modules & Breakers, DCDB Modules, HVAC modules, AHU panels, breakers in D.G set, Tightness checking of Control wiring control panels and including consumables & Hire charges for T&P.

Air to SF6 Bushing maintenance (tightness checking of conductor in 230and 400kV feeder), tightness checking of conductor in reactor side and including consumables & Hire charges for T&P

Filter changing in D.G sets i.e., Each set consist of Cleaning of 1 No. Air Filter ,1 No. Engine Oil Filter and 1 No. Diesel Filter or 2 Nos Water Filterand including consumables & Hire charges for T&P.

Applying petroleum gel, DM water top up and tightness checking of terminals in Battery bank I & II and including consumables & Hire charges for T&P.

Charges for bottling of SF6 gas cylinders in 230KV and 400KV Switchyard including consumables & Hire charges for T&P.

Charges for transportation of HSD diesel for D.G sets from BPCL agency, Vallur to NCTPS-II and including consumables & Hire charges for T&P.

BREAKDOWN WORKS: (a)Trouble shooting and Gas filling in Gas insulated switchyard breakers , isolators , earth switch in 230KV and 400KV switchyard as instructed by maintenance engineer including consumables & Hire charges for T&P.

(b) Charges for topping up of SF6 gas in 230KV and 400KV outer bus ducts in Switchyard and including consumables & Hire charges for T&P.

(c)Trouble shooting and Replacement of Spares in Modules in ACDB, DCDB, HVAC, AHU, D.G set, Battery Charges I &II, Station Service Transformers I &II and its control panels as instructed by maintenance Engineer including consumables & Hire charges for T&P.

(d) Charges for maintenance of EOT cranes in 400 KV, 230 KV, DG set breakdown works and including consumables & Hire charges for T&P.

Charges for Opening of all earth pit in cleaning the earth electrode & pit , checking the joints and earthing rod to be carried out in 400KV & 230KV GIS yard including consumables & Hire charges for T&P.