S.81 NCTPS II ES circle - EMI Division S.DnI Unit I II Running Contract Estimate proposal for EHT HT MV Transformers in Unit and BOP area from the date of commencement of work up to 31.03.2027 for the FY 2026-27.

Charges for carrying Daily Maintenance: Monitoring daily walk down check list of all Transformers including consumables & Hire charges for T&P.

Weekly Maintenance: Weekly Maintenance of Transformers upto 5000 KVA such as ESP, Aux Cooling water,fire water, RODM for cleaning including consumables & Hire charges for T&P.

Weekly Maintenance of Transformers HT & EHT Transformers for cleaningincluding consumables & Hire charges for T&P.

Quarterly Maintenance: a) Quarterly Maintenance of Distribution Transformers in Unit and BOP area upto 5000 KVA (once in three months)including consumables & Hire charges for T&P.

b) Quarterly Maintenance of HT/ EHT Transformers at Unit area(once in three months) including consumables & Hire charges for T&P.

Breakdown Maintenance: a) Charges for Replacement of 400 kV Drooper Twin Moose ACSR in Generator Transfomerincluding consumables & Hire charges for T&P.

b) Charges for Provision of Short Circuit Jumper in 400kV Line between GT HV Side R,Y & B phase near 400kV GIS area for conducting Open/ Short Circuit Test in Generator including consumables & Hire charges for T&P.

c) Charges for Removal of Short Circuit Jumper in 400kV Line between GT HV Side R,Y & B phase near 400kV GIS area for conducting Open/ Short Circuit Test in Generator including consumables & Hire charges for T&P.

d) Charges for Vacuum pulling, Oil filling and hot oil circulation (main tank, radiators & combined circulation) up to reaching of parameters to the satisfactory level in GT/ST/UT's including consumables & Hire charges for T&P.

e) Charges for Transportation of 6KL Oil Filtration Machine, Oil Hose, oil Barrels & Power Cable including Connecting & disconnecting of Oil Hose & and extending power supply to the oil filtration machineincluding consumables & Hire charges for T&P.

Charges for Vacuum pulling, Oil filling and hot oil circulation (main tank, radiators & combined circulation) up to reaching of parameters to the satisfactory level in Compressor, CWPH,Raw Water & Water System Transformers (16 Nos) or ESP Service transformers (16 Nos) including consumables & Hire charges for T&P.

Rewinding of 1.5 KW motors : Charges for GT Cooler fan motors 1.5 KW for dismantling,rewinding, replacement of new Bearings, providing sleeve at DE & NDE side bearing housing, cleaning of motor parts, varnishing, metal filling, machining & repairing rotor under cut on bearing seating surfaces, restacking the stator core, dynamic balancing of rotor, motor painting, to replace new terminal block and fan, damaged motor base and fan cover to be repaired and complete assembling of motor including consumables, T&P's, paint and thinner charges. (DE/NDE bearings supplied by the Contractor).

Rewinding of 0.55KW motors : Charges for UT cooler fan motors 0.50KW KW for dismantling, rewinding, replacement of new Bearings, providing sleeve at DE & NDE side bearing housing, cleaning of motor parts, varnishing, metal filling, machining & repairing rotor under cut on bearing seating surfaces, restacking the stator core, dynamic balancing of rotor, motor painting, to replace new terminal block and fan, damaged motor base and fan cover to be repaired and complete assembling of motor including consumables, T&P's, paint and thinner charges. (DE/NDE bearings supplied by the Contractor)