The West Bengal Power Development Corporation Limited Tender

Mandatory Jobs, Overhauling of HT Motor: Overhauling of 355 KW 6.6 KV Motor Motor Specification: - V-6.6KV; 50 HZ; KW-355; AMPS-38.0; RPM-1492; P.F.-0.86; % EFF -96; DUTY - S1; FRAME - DC315F800; INS CL.- F; ST. CONN - STAR; IP-55; GD2 - 38 KGM2; REF IS - 325; AMB. - 50°C; WT: 3000 KG; BEARING DE/NDE -NU224 C3/6320 C3; GREASE QTY. - 50 GMS; RELUBRICATION-10000 HRS.; YEAR 2007; 3PH SQ. AC INDUCTION MOTOR; MAKE - ALSTOM. Scope of Work: -1. Shifting of Motor from Compressor chassis to working area by EOT Crane. 2. Measurement of IR Value of Motor. 3. Removing of Motor fan cover, fan, end cover, bearing housing, bearing etc. removal of Coupling Hub (if required). 4. Pulling out rotor from stator bore with proper care. 5. Pre work inspection and preparation of joint inspection report with AHP (E/M) dept. after proper cleaning of all components. 6. Measurement of bearing housing, shaft, coupling hub and rectification if required. 7. Preparation of measurement sheet for bearing housing, bearing clearance, shaft and coupling hub before and after overhauling. 8. Checking of Stator insulation and wedges. 9. Heat Varnishing of Stator & Rotor. 10. Checking of IR, PI & Winding resistance for standard value to make motor available for smooth running. 11. Assembling of bearing and bearing housing. 12. Checking of terminal box & motor RTD Terminal Box. Rectification if required. 13. Painting of components and box up of motor. 14. Painting of motor with proper grade of colour as per industry norms after proper cleaning of surface by scrubbing. 15. Motor no-load trial run and presentation of report on the same. 16. Replacement of Grease Cap, oil seals, gaskets, circlip, slot key etc. (Necessary spare to be provided by the party if required) in presence of AHPEM Dept.

Optional Jobs, Overhauling of HT Motor: Bearing Housing Metalizing DE Bearing Housing Metalizing and Machining of DE side, bearing no.: NU224 C3 (if required).

Optional Jobs, Overhauling of HT Motor: Bearing Housing Metalizing NDE Bearing Housing Metalizing and Machining of NDE side, brg.no.: 6320 C3 (if required).