Question: A 3 phase 5 0 0 V , 5 0 Hz , IM with 6 pole develops 2 0 hp at 9 5 0 rpm

A 3 phase 500V,50Hz, IM with 6 pole develops 20hp at 950rpm with pf of 0.85 lag. The total rotational
losses is 1 hp. Calculate for this load:
a) The slip
b) The rotor copper losses.
c) The input power if the total stator losses =1500W

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