1.

The ratio of the rotor copper loss and air gap power is _______(a) s(b) 1-s(c) 1+s(d) 0I have been asked this question during an interview.Question is taken from Induction Motors in section Braking of DC Motors & Induction Motors of Electric Drives

Answer»

The CORRECT answer is (a) s

Explanation: The RATIO of the ROTOR COPPER loss and air gap power is s. The air gap power in the induction motor is Pg and the rotor copper loss is s×Pg. The ratio is s.



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