Repairing and Rewinding of 15 Fifteen numbers 20 H.P 3 phase 440 volt Heavy duty Squirrel cage Induction electro motor rated 1440 R.P.M. with 50 cycle for electrically operated RLI schemes under Islampur Agri Elec Sub Division

(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 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 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. (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) Elmech/G.E.C(New) / Crompton/N.E.C / 10.2 Kgs 2) Bicco/ A.E.I - nil 3) G.E.C (old) - 13.5 & 16.2 Kgs. 4) Kirloskar (New) - 10.2 Kg, 5) Kirloskar (Old) - 12.0 Kg 6) Crompton (Old) - nil . and 7) NGEF - nil

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 Each 433.76 new socket of required size and fitting the same in bearing housing.

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

Labour charge for checking up the dynamic balance of the motor shaft for original alignment as per direction of Engineer-in -charge

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

Labour charges for Carriages 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.

Heat varnishing with best quality (Jhonson & Jhonson)/Dr. Beck Gillander) class 'E' insulating varnish of required quantity for 3 course & uniform heating at 800 Degree C for 48 hrs. With all cost of materials, labour as per direction of E.I.C. (c) Insulting varnish 1 lit for 20 HP Induction motor