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MEO Class II – MET : 2020/FEB/10

Question

10. How does the change in rotor-frequency affect the induction motor when the load is changed from no-load to full-load?

B. The total input power to a 500 V, 50Hz, 6-Pole phase induction motor running at 975 rpm is 40kW. The stator losses are 1 kW. Friction and windage losses are 2 kW total. Calculate (i) Slip, (ii) Rotor Cu Loss, (iii) Efficiency

Asked in Year/Month/Ques No.

2020/FEB/10

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