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The power input to the 3-phase induction motor is 60 kW. The stator losses total 1 kW. Find the mechanical power developed at the slip of 3%.(a) 57.23 kW(b) 58 kW(c) 56.8 kW(d) 59 kWThis question was posed to me during an online interview.My doubt stems from Induction Motor Phasor Diagram topic in section Induction Machines of Electrical Machines

Answer»

Correct CHOICE is (a) 57.23 kW

Best EXPLANATION: Air GAP power = 60-1 = 59 kW

Pm = (1-s)PAG = 0.97*59 = 57.23 kW.



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