S.36 NCTPS II ES circle EM I Sub Division IV Annual maintenance of HT LT Turbine auxiliary motors in Unit I during the annual overhauling period of 2025 2026

Labour Charges for removing and refixing the NDE side cover of 10 Nos. 3.3KV HT turbine motors such as i) DMCW motors:5 Nos. ii) CEP motors:3 Nos. iii) ACW motors:2 Nos. for the cleaning of cooling tubes, cooling fans and covers, including consumables and T&P charges.

Labour Charges for cleaning of 08 Nos. 3.3KV HT turbine motors such as 3 Nos. ACW motors , 3 Nos. TG DMCW motors and 2 Nos. SG DMCW motors with emery sheets and One coat of red oxide and two coats of painting with enamel smoke grey paint, including consumables, T&P's, paint and thinner charges.

Charges for complete dismantling of 3.3KV/132KW, ACW-1A Induction motor (releasing the DE/NDE side cover, removing the cooling fan, removing the shaft), cleaning of motor parts, replacing the damaged DE/NDE bearings (Bearings DE -NU 222M, 6222 C3 & NDE-NU 219 M), Varnishing, painting and complete assembling of motors. (Bearings to be supplied by Contractor)

Charges for repairing & providing sleeves at DE/NDE bearings housing of 3.3KV/132KW ACW-1A motor. (1set consists of both DE & NDE bearing housing sleeve).

Charges for metal filling, machining, welding and repairing of rotor under cut on bearing seating surfaces on DE & NDE sides of 3.3KV/132KW ACW-1A motor.

Charges for Dynamic balancing of rotor of 3.3KV/132KW ACW-1A motor.

Charges for transportation and erection of 01 No. 132 KW /415V new Vacuum pump motor from stores to Vacuum pump motor - 1D location and released motors from location to 18.5mtr TG floor including lifting, unloading charges.

Removing vacuum pump motor coupler from old motor and refixing in new spare motor.

Charges for complete dismantling of 415V, 110KW, removed Vacuum pump motor - 1D releasing the DE/NDE side covers, removing the cooling fan, removing the shaft, cleaning of motor parts, replacing the damaged DE/NDE side (Bearing size 6319 C3 - 02 Nos) bearings of motors, motor painting and complete assembling of motors. (New Bearings to be supplied by the Contractor).

Charges for repairing & providing sleeves at DE/NDE bearing housing of 415V/110KW Vacuum pump motor.

Charges for metal filling, machining, welding and repairing of rotor under cut on bearing seating surfaces on DE & NDE sides of 110KW /415V Vacuum pump motor.

Dynamic balancing of rotor of 110KW /415V Vacuum pump motor.

Labour charges for dismantling of acoustic enclosure of IAC-3 motor.

Labour charges for removal of foundation bolts, lifting, transporting & unloading of 365KW/3.3KV defective compressor motor from IAC-3 motor location to Unit- II repair bay.

Labour charges for removal of 365KW/3.3KV Compressor motor coupler from old motor and refixing in new spare motor.

Labour charges for Lifting, shifting & unloadinding of spare motor from TG floor to IAC-3 motor location, placing at bed, tightening of foundation bolts and bed bolts etc.

Labour charges for reassembling of acoustic enclosure of IAC-3 motor.

Labour charges for alignment of motor and commissioning work

Labour Charges of Marathon make 3.3 KV/365 KW released compressor Motor for removing the Motor fan cover, fan and end covers, threading out the rotor, Cleaning the stator winding and rotor, including consumables and T&P charges.

Labour Charges of Marathon make 3.3 KV/365 KW released compressor Motor for checking and tightening of all loose wedges in the stator by inserting additional insulating material and checking the tightness of the rotor bars and spraying one coat of Dr.Beck insulating varnish on the stator and rotor, including consumables and T&P charges.

Labour charges of 365 KW/3.3 KV released compressor Motor for removing the Motor bearings from the shaft and replacing the old bearings with new one on both DE & NDE side including consumables, T&P's and bearing charges. (Bearings to be supplied by contractor).

Charges for repairing & providing sleeves at DE/NDE bearing housings of 365KW/3.3KV released compressor Motor, including consumables and T&P charges. (bearing size : NU224 C3, 6220 C3) (1set consists of both DE & NDE bearing housing sleeve).

Charges for metal filling, machining, welding and repairing of rotor under cut on bearing seating surfaces on DE & NDE sides of 365KW/3.3KV IAC-2 Motor, including consumables and T&P charges.

Charges for dynamic balancing of rotor in 365KW/3.3KV released compressor Motor, including consumables and T&P charges.

Charges of 365KW/3.3KV compressor Motor for threading the rotor, fixing the Fan & end covers and fan cover. Checking the IR value, DC resistance and Tan delta, including consumables and T&P charges.

Charges for supplying & painting 2 coat of smoke grey enamel paint on 3.3KV/365KW released compressor Motor, including consumables, paint, thinner and T&P charges.

Transportation of 132 KW & 110 KW motors from NCTPS-II site to contractor work shop for overhauling of motors.