WBWRDD/EE (AM) /Kalyani/e-NIT20(Sl. No-1)/2025-26

Dismantling of different H.P 3 Phase 380-400 Volt 1440 RPM, 4/3 pole 50 cycle for induction motors, removing old burnt out coil from slots carefully, segregating all the parts, washing and cleaning the same thoroughly for verification of serviceable and unserviceable parts as per direction of E.I.C. (i)17.5 H.P/ 20 H.P 3 phase induction motor.

Rewinding with approved quality Super Enamel copper winding wire of standard gauge IS 13730, 1996, part 13 as provided by motor manufacturer including slot insulation as per Indian Electrical Rules, shouldering the cable joints properly, taping with 660 V. Gradewater proof tape, making new loop terminals heating and vernishing with 'E' class golden vernish (Jhonson & Nicolson make) so as to develop original rated rpm, supplying all necessary materials as mentioned above and reassemblingthe motor. (b) 17.5 H.P / 20 H.P 3 Phase 415 votls, 50 Hz 2 I 4 pole induction Motor.(i) Supply of super enamelled dual coated copper wire conforming IS 13730, 1996, part 13 (16 swgto 22 swg)

Labour charge for rewinding, soldering, heat varnishing, bearing changing, reassemling etc. including supply of all materials excluding bearing as mentioned above complete in all respect as per direction of E.I.C

Carriage of motor from store to workshop and back to store after repair. This item is only applicable when written permission is available from E.I.C. where there is no facility for such work in the sub- division.

Socketing with C.I socket at enlarged bearing housing of any type of 17.5 H.P / 20 H.P motor by oversizing the bearing housing by machine turning & supplying new socket of required sizeand fitting the same in bearing housing.

Testing of repaired motor by continuous 8 hrs running on load as per direction of E.I.C

Painting two coats of both inner & outer portion with best quality synthetic enamel paint (to be approved before use)including smoothing surface by sand paper for removing old paint asper direction of E.I.C (a) Motor

Heat varnishing with best quality (Johnson & Johnson/ Dr. Beck/ Giliander) class 'E' insulating varnish of required quantity for 3 course& uniform heating at 80 degree Celsius for 48 hrs. with all cost of materials, labour as per direction of E.I.C. (c) Insulating varnish 1 lit for 20 HP induction motor

Deduction towards dismantled burnt enamelled copper wire from induction motor on the basis of actual measurement to be retained by the agency. (Note: In case of PVC insulated copper wire to arrive at net burnt weight 10% deduction will be made)

Total

Labour Welfare Cess @ 1%

Grand Total

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