WRDD/EEAM/MLD-I/ eNIT-02/2026-27/SL01

Dismantling of different H.P 3 Phase 380-440 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. 17.5 H.P. / 20 H.P , 3 phase induction motor.

Rewinding with approved quality Super Enamel copper winding wire of standard gauge IS13730,1996, 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.(i) Supply of super enamelled dual coated copper wire conforming IS 13730, 1996, part 13 (16 swgto 22 swg) Required max. weight of super enamelled copper wire is given below: a) Elmeck/G.E.C(New) / Crompton/N.E.C / - 10.2kgs. b)Kirloskar (New) / L.H.P- 10.5 kgs c) Kirloskar(old) - 12.0 kgs d) Bico - 13.1kgs e) Crompton(old)-12.5 kgs (Considering 5 nos of (a), 11 nos of (b) , 3 nos of (c) , 3 nos of (d), 1 no of (e))

(ii) 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.

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 & suppling new socket of required size and fitting the same in bearing housing.

Repairing of damaged motor shaft by metaling with electric welding and turning properly to house in the bearing space and coupling side teeth and also rectifying the dynamic balance of the rotor to its original alignment to avoid any vibration all complete as per direction of the E.I.C.

Supplying, fitting and fixing new stud, bolt with nuts and washer etc after removing the same from bearing cover, body cover, terminal box cover etc for upper flange as per sample

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 as per direction of E.I.C.

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

Labour charge for 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.