A three phase induction motor is sometimes called a generalized trans – McqOptions

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1.	A three phase induction motor is sometimes called a generalized transformer in so far as voltage and frequency transformation has been concerned. Then the rotor emf E2 and the rotor current I2 are zero at
A.	ns
B.	2ns
C.	zero
D.	slip of 50%
Answer» B. 2ns

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