WBWRDD EE AM BDN eNIT-33 (Sl No 01-03) NP 2025-26 (Sl No-03)

Repairing and Rewinding of 17.5 H.P./ 20 H.P. 3 phase, 440 Volt Squirrel cage Induction Electro Motor for Maintenance of different RLI schemes under Durgapur(Agri-Elec.) Sub-Division under Burdwan (Agri-Mech) Division under Maintenance Programme in the District of Paschim Bardhaman. Please see the details in Sheet Rewinding

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(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. (ii) for 17.5/20 HP 3 phase Induction Motor.

Rewinding of approved quality Super Enamel copper winding wire of standard gauge as provided by motor manufacturer including slot insulation as per Indian Electrical Rules soldering the cable joint properly taping with 660 v grade water proof tape making new loop terminal, heating and varnishing with Class-E golden Varnish (Johnson & Nicolson Make) so as to develop original rated RPM, supplying all necessary materials as mentioned above and reassembling the 17.5/20 HP, 3 Phase, 1440 RPM, 50 Hz, 440 Volts Induction Motor.(WRDD elec. sh. chapter 4 Page-1 of 7,item -2 ) (b) 17.5 H.P / 20H.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) Elmech/G.E.C(New) / Crompton/N.E.C/Kirloskar - 10.2kgs. 2) Bicco/ A.E.I -13.1 Kgs. 3) G.E.C (old) - 16.2 Kgs. 4)Kirloskar(New)-9.5 kg. &10.5 Kg. 5)Kirloskar (Old)- 12 Kgs. 6) Crompton (Old)-12.5 Kg. 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 above complete in all respect as per direction of E.I.C

Labour charge for checking up the dynamic balance of the motor shaft for original allignment as per direction of E.I.C

Testing of repaired motor by continuous 8 hours running on load 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.

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 EIC. (b) Motor

Heat varnishing with best quality (Johnson & Johnson/ D. Beck/ Gilliander) class 'E' insulating varnish of required quantity for 3 course & uniform heating at 80 degree celcious for 48 hours with all cost of materials, labour as per deduction of EIC. © Insulating varnish 1 ltr for 20 HP induction Motor.

Item wise total

Add GST @18% on all Items

Add Cess @1% on all Items.

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) NB: Contractors premium will be allowed in this item bill should be drawn deducting the actual measurement of burnt coli @Rs 351.00 per Kg.

Grand Total Rs.

Say Rs.

Two Lakh &Fifty Six Only

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