Tamil Nadu Generation And Distribution Corporation Limited-TANGEDCO has published Tender For Ttps Es Circle Em I Capital Overhauling Of 1 No Ht Motor 6.6Kv 4000 Kw Bhel Make Boiler Feed Pump Motor 3B And Annual Maintenance Of Ht Motor 3A And 3C In Unit Iii For The Year 2023 24. Submission Date for this Tender is 03-06-2023. Electrical Maintenance Tenders in Tuticorin Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Removal of sleeve bearings, resting the rotor on the stator after placing rubber sheet. |
| 2 | Removal of foundation bolts,Lifting the motor to a convenient location. |
| 3 | Charges for removal and refixing of floor grills at 13.5 mt level for lifting and re-erecting the coolers in the HT Motors |
| 4 | Overhauling of the 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 |
| 5 | Overhauling of the rotor: Labour Charges for inspection and cleaning of rotor, checking the positionofstampings, cleaning ofthe corroded parts, Inspection of winding bars, solderedendwinding, cleaning of overheated burnt places and applying two coats ofDr.Becks protective enamel and drying out |
| 6 | Cleaning the cooler tubes, checking the coolers by hydraulictesting, reconditioning of cooler flanges, replacement of gasket etc, |
| 7 | Reassembling the motor complete Lifting and Erection of the motor back on its bed after cleaning and checking healthiness of pedestal insulation. |
| 8 | Charges for measurement of air gap between stator and rotor , adjust the air gap evenly for getting correct magnetic center, tightness the motor bed bolts by providing required shims for setting the magnetic center & air gap for BFP Motor |
| 9 | 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 |
| 10 | Boiler Feed Pump Motors and Coolers scraping, cleaning andpainting with two coats of enamel paint. |
| 11 | Supply of high grade nitrile rubber gasket (NBR) size of 1mtr X 1Mtr X 5mm for cooler |
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