WBWRDD/EE/KNJ(AM)/NIT 01/26-27 S3

(a) 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 forverification of serviceable and unserviceable parts as per direction of E.I.C. (ii) 17.5 H.P.l20 H.P. 3 phase induction motor.

Rewinding with approved quality Super Enamel copper winding wire of standard guage as provided by motor manufacturer including slot insulation as per Indian Electrical Rules, shouldering the cable joints properly, taping with 660 V. Grade water 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 reassemblying the motor. (b) 17.5 H.P 120 H.P 3 Phase, 415 votls, 50 Hz, 2/4 pole induction Motor (i) Supply of super enamelled dual coated copper wire conforming IS 13730, 1996, part 13 (16 swg to 22 swg) Required max. weight of super enamelled copper wire is given below: 1) ElmecklG.E.C(New)/Crompton/N.E.C - 10.2 Kgs. 2) Bicco/A.E.1-13.1 Kgs. 3) 3)G.E.C (old) - 13.5 Kgs. &16.2 Kgs. 4) Kirloskar (New) - 9.5 Kgs. & 10.5 Kgs. Kg. 5) Kirloskar (Old) - 12 Kgs. 6) Crompto (Old) - 12.5 Kgs. 7) NGEF - 10.5 Kgs.

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

Heat vernishing with best quality (Johnson & Johnson/ Dr. Beck/ Giliander) class 'E' insulating vernish of required quantity for 3 course & uniform heating at 800° C for 48 hrs. with all cost of materials, labour as per direction of E.I.C. © insulating vernish 1 lit for 20 HP induction motor.

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 newsocket of required size and fitting the same in bearing housing.

(a) Repairing of damaged motor shaft by metaling with electric welding andturning properly to house in the bearing space and coupling side teeth and alsorectifying thedynamic 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 stud bolts with nuts for top and bottom cover.

Testing of repaired motor by contious 8 hrs running on load 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.

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. (a) Motor