Repairs to 75 HP, 1470 RPM, 3-phase squirrel cage induction motor at lift irrigation scheme Sagipora of MISD Handwara.

Amount

Dismantling of the 75 HP, 1400 RPM three phase induction motor at site, dragging the motor to the loading site, loading in private load carrier and shifting of the motor to the workshop. Dismantling the motor at workshop and then extracting the rotor from the stator, stripping of old and burnt enamelled copper wire along with insulation material from the stator, cleaning of stator slots with petrol and recommended cleaning chemicals. Rewinding of the stator by way of formation/insulation of requisite number of coil sets of suitable cross section made of super enamelled copper wire of requisite gauge. (Note: The unserviceable scrap copper generated shall be property of the firm and is taken into account for estimation of rate.). Coils shall be fitted/installed by using superior quality insulation material i.e. film paper, special leathered sheets, glass cloth of requisite thickness. Varnishing the stator with superior quality varnish and drying the stator with hot air/blower. The job shall further involve replacement of the worn-out/damaged motor bearings NDE 6311 and DE N-313 of reputed make by way of extracting the old ones with the help of pullers and refitting of the new ones. The bearings shall be lubricated enough by high quality grease and checked before further procedure. Replacement of the damaged/burnt-out Bakelite connection plates for fixing the six insulated connection terminals coming from motor so that motor could be operated in star or delta configuration as per site requirement. After carrying out the above job the motor shall be reassembled and shifted back to the site, refitted on the base frame and reconnected with all the electrical/mechanical connections using new thimbles, nuts bolts etc. Testing of the motor shall be done on no load and full load at site.

M/S STAR ELECTRICAL ENGINEERING WORKS

SYED MOHAMMAD SHAH

M/S MODERN ELECTRICALS AND SUPPLIERS