DRE324T068

Amount

REPAIR OF 1350KW SDU REFG. COMP. MOTOR

SCOPE OF WORK AND TERMS & CONDITIONS 1. Assessment of the overalll condition of the motor and shall submit detailed bar chart covering the schedule of repair activities for repair of this motor 2. NDT on critical parts 3. The core flux test is to be carried out for stator healthiness 4. Replacement of DE and NDE Housing assembly and bearings 5. Run-out and clearance checks rotor shaft Outer diameter at bearing seating position to be taken 6. Inspection of stator winding and its joints. 7. Checking of wedges of stator winding 8. Varnishing of the stator winding 9. Inspection and rectification of motor terminals 10. Manufacture and replacement of complete rotor including shaft and short circuit rings 11. Complete varnishing of stator and rotor 12. Balancing of rotor and electrical testing 13. Checking RTD, BTD of both DE and NDE bearings 14. Checking and cleaning of drain pipes of bearings 15. Repair/replacement of all defective parts. Complete replacement of gasket with new gasket for cooler and terminal box. 16. Assembly of the motor including all spares. 17. Static test of stator to be done 18. Stator frame to be cleaned 19. Functional run test of the motor. All tests shall be conducted by BHEL in presence of IOCL authorized representative. BHEL shall inform to IOCL Ten days in advance for readiness of Inspection/testing 20. The no load trial run of the motor shall be operated and tested at rated voltage (6.6 kv) and rated speed (3000 rpm) and vibration readings to be recorded. The acceptable vibrations after repair of the motor shall be as per ISO 10816 for calss III machines. 21. Air pressurization unit to be checked during final testing 22. All electrical tests of the motor are the be carried out and report of the tests are to be submitted to IOCL 23. Painting of the complete motor. 24. Testing and inspection. a) The new rotor shaft shall be tested for its metallurgy composition and its hardness, which must be identical as per original rotor shaft. Test report from NABL/GOVT. Approved test laboraties to be submitted. b) The report of trueness of the new rotor shaft and its dynamic balancing is to be submitted c) Routine test and no load test shall be performed on the motor which shall be jointly witness by IOCL representative. d) The vendor shall ensure the availablity of testing facilities so that the routine tests can be carried out on the motor d) The motor shall be operated and tested at rated voltage (6.6 kv) and rated speed (3000 rpm) and vibration readings to be recorded. The acceptable vibrations after repair of the motor shall be as per ISO 10816 for Class III machines 25. Terms and conditions a) BHEL has to complete the total job within five (five) months from the date of issue of P.O. The date of intimation of readiness of the motor for final inspection and testing shall be taken as the date of completion of the repair b) Loading and unloading at IOCL site shall be in the scope of IOCL. c) Loading and unloading at BHEL works will be in the scope of BHEL d) All the test certificates will be produced along with the repaired motor at the time of delivery of the repaired motor. e) BHEL has to use all materials as per latest IS standard only. f) Old scrap material shall be retained by BHEL 26. Packing & forwarding and Transportation Proper packing to be provided by BHEL for dispatch of the repaired motor to take care of shocks and water ingress due to rain after transit. After completion of the work and after proper packing the motor shall be handed over by BHEL to IOCL's authorized transported for delivering the material at site. Required way bill & insurance document shall be sent to IOCL prior to dispatch. All transportation charges shall be borned by IOCL. 27. Warantee The repaired motor shall be guaranteed to be free from defects in material/workmanship for a period of 12 months from the date of actual commissioning at site or 18 months from the date of receipt of motor at site whichever is earlier. In the event of failure of any motor during the guarantee period, BHEL shall arrange to carry out the necessary repairs/ rewinding without any additional charges to IOCL and expenses.