ETO – ETO – Section 2 : 2019/JAN/05 – 2019/APR/05
Question
Q5. With reference to three phase induction motors:
a) Explain the phenomenon of crawling and cogging in these motors. (6)
b) The output of an induction motor running at 4% slip is 36.775 kW and the friction and windage losses are 1500W. find the rotor copper loss and motor efficiency if stator losses are 3kW. (10)
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