NCTPS I ES Circle EM I Dn S Dn IV Annual Overhauling of HT LT motors Boiler Feed pump motor 2B Condensate Extraction pump motor 2B Auxiliary oil pump motor MOT 2B Auxiliary cooling water pump motor 2A 2C Sea water booster pump mot

Amount

Complete Overhauling of 3500KW/6.6KV BFP Motor Charges for removal of end covers and measuring the air gap and magnetic axis

Charges for removal of water line pipes, cooler assembly and lifting the cooler unit to a convenient location.

Charges for removal of sleeve bearings, resting the rotor on the stator after placing rubber sheet.

Charges for removal of foundation bolts,Lifting the motor to a convenient location.

Overhaul of stator : Inspection and cleaning and checking of stator windings, fastening of the stator winding to the end ring and also the inter coil spacers and packing in the overhang portion of the windings, tightening the wedges, spraying one coat of Dr.Beck protective enamel varnish, Drying out the stator, preheating, Checking the IR value, DC resistance and Tan delta.packing in the overhang portion of the windings, tightening the wedges, spraying one coat of Dr.Beck protective enamel varnish, Drying out the stator, preheating, Checking the IR value, DC resistance and Tan delta.

Overhaul of rotor :Inspection and cleaning of released rotor, checking the position of stampings, cleaning of corroded parts, inspection of winding bars, cleaning of overheated and burnt places, applying one coat of Dr.Beck’s insulating varnish and drying out.

Cleaning the cooler tubes, checking the coolers by hydraulic testing, reconditioning of cooler flanges, replacement of gasket etc,

Checking the bearing and preparation of bearing surface and blue matching the housing. (Bearings supplied by TANGEDCO)

Lifting and Erection of the motor back on its bed after cleaning and checking healthiness of pedestal insulation.

Assembling of sleeve bearings, Checking the interference between the bearings and housing, checking the clearance between shaft and bearing. (Bearings supplied by TANGEDCO)

Assembling the end covers, checking air gap and magnetic axis.

Lifting the cooler assembly ,fixing with motor and connecting the water line pipes, etc.,

Tightening the bed bolts, foundation bolts, Checking the IR value, DC resistance and trial run the motor in decouple/couple condition running the motor satisfactorily.

Complete Overhauling of 500KW/6.6KV CEP Motor Disconnection of power cable, De-coupling the motor from pump and checking alignment.

Removal of foundation bolts, lifting the motor to a convenient location.

a) Dismantling of motor pulley, cooler, end covers and Threading out the rotor.

b) Checking and cleaning of cooler tubes.

Overhaul of stator: Labour charges for inspection and cleaning of stator and winding of stator, fastening of the winding to the end ring and also the inter coil spacers and packing in the overhang portion of the winding, tightening of the wedges, spraying one coat of Dr.Beck’s protective enamel and drying out, Stator preheating, checking the IR value and DC Resistance.

Overhaul of rotor:Labour Charges for inspection and cleaning of rotor, checking the position of stampings, cleaning of the corroded parts, Inspection of winding bars, soldered end winding, cleaning of overheated burnt places and applying two coats of Dr.Becks protective enamel and drying out.

Releasing the bearing, cleaning, checking, reassembling / replacing the bearing on both ends lubrication etc. (Bearings supplied by TANGEDCO)

Assembling of motor after threading in the rotor, fixing end covers, providing rubber gasket and fixing of cooler unit, Checking the IR value, DC resistance and Tan delta.

Lifting of motor, placing at motor bed and tightening of foundation bolts, bed bolts etc.

Termination of power cable, coupling the motor with pump, Checking alignment and trial run.

Charges for machining of DE & NDE Bearing housings in special type lathe sleeve preparation, sleeve pressing in housing, locking and arresting by screw and remachining bearing suit 500 KW CEP motor. (optional).

Charges for dynamic balancing of the rotor 500 KW CEP Motor (optional).

Charges for Overhauling of Auxiliary cooling water pump motor – 2A & 2C (110 KW LT Motor).

Labour required for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces on DE & NDE sides, checking of bearings housings, providing sleeves in the end covers on DE & NDE (optional).

Charges for overhauling of Sea water booster pump motor – 2A & 2C (55 KW LT Motor).

Charges for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces of one side, checking of bearing housings, providing sleeves in the end cover of one side. (optional).

Charges for Overhauling of Ash water supply pump motor-2A. (37 KW)

Charges for Overhauling of Instrument air compressor motor – 2A (150 KW)

Charges for Overhauling of Vacuum pump motor -2B (93 KW)

Labour required for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces on DE & NDE sides, checking of bearings housings, providing sleeves in the end covers on DE & NDE (optional).

Charges for Overhauling of AC seal oil pump motor including bearing (5.5 KW)

Charges for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces of one side, checking of bearing housings, providing sleeves in the end cover of one side (optional).

Charges for Overhauling of Stator water pump motor-2B including of bearing (9.3 KW).

Charges for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces of one side, checking of bearing housings, providing sleeves in the end cover of one side (optional).

Charges for Overhauling of Auxiliary oil pump motor-2B MOT (100 KW).

Labour required for metal filling, machining and repairing of worn out shafts / Bearing seating surfaces on DE & NDE sides, checking of bearings housings, providing sleeves in the end covers on DE & NDE (optional).

Consumables

Transporting Charge

P.G.R. ELECTRICAL WORKS