WBWRDD/EE(AM)/HWH/eNIT 93/25-26

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 (II) 17.5 H.P. / 20 H.P., 3 Phase, 1440 RPM, 50 cycles, 440 volts induction motor.

Rewinding with approved quality Super Enamel copper winding wire of standard gauge 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 varnishing with 'E' class golden varnish (Jhonson & Nicholson make) so as to develop original rated rpm., supplying all necessary materials as mentioned above and reassembling the motor. (b) 17.5 H.P. / 20 H.P., 3 Phase, 415 volts, 50Hz 2/4 pole induction motor. (i) Supply of super enameled dual coated copper wire conforming IS 13730, 1996, part 13 (16 swg to 22 swg). Required max. weight of super enameled copper wire is given below i) Elmech/ G.E.C (New) / Crompton / N.E.C- 10.2 Kg

ii) Kirloskar (New)-9.5 Kg & 10.5 Kg

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

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

Heat varnishing with best quality (Dr. Beck/Johnson Nickelson / Giliander ) Class 'E' insulating varnish of required quantity for 3 (three) course & uniform heating at 80°C for 48 hrs with all cost of materials, labour as per direction of Engineer-in-Charge. ( c ) Insulating varnish 1 Litre for 20 H.P induction motor

Socketing with C.I socket at enlarged bearing housing of any type of 17.5 / 20 H.P motor by oversizing the bearing housing by machine turning and supplying 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 smoothening surface by sand paper for removing old paint as per direction of Engineer-in-Charge. a) Motor

(a) 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.

(e ) Supplying , fitting and fixing stud bolt with nuts for top and bottom cover

(i) Supply ing , fitting and fixing s.s slip of rotor shaft including removing out of the old one as per direction of the E.I.C.

(k) Supplying fittign and fixing axial thrust plate of motor shaft including supplying of Key etc. all complete as per direction of E.I.C i) 12.5 HP to 20 HP

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.

Added GST 18 %

Added Cess 1 %

Please Enable Macros to View BoQ information