NCTPS I ES Circle EM I Dn S Dn IV Annual overhauling of HT LT motors Boiler feed pump motor 1C Auxiliary oil pump motor MOT 1B Auxiliary cooling water pump motor 1B 1C Sea water booster pump motor 1A 1B 1C Ash water supply pump motor 1B Inst

Amount

Complete Overhauling of 3500KW/6.6KV BFP Motor-1C 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.

Charges for Overhauling of Auxiliary cooling water pump motor – 1B & 1C (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 – 1A ,1B & 1C (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-1B. (37 KW)

Charges for Overhauling of Instrument air compressor motor – 1C (150 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 Service air compressor motor – 1B (150 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-1B 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 Vaccum pump motor-1B MOT (93 KW).

Charges for Overhauling of Auxiliary oil pump motor-1B 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

A.R.C.ENGINEERING