A 3-phase induction motor is fed at the stator at a frequency f. If th – McqOptions

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1.	A 3-phase induction motor is fed at the stator at a frequency f. If the rotor speed is Nr and synchronous speed is Ns, then the absolute speed of the resultant flux in space is?
A.	Ns
B.	(Ns+Nr) if the flux rotates in the same same direction as the rotor
C.	(Ns-Nr) if the flux rotates in the same same direction as the rotor
D.	Nr
Answer» B. (Ns+Nr) if the flux rotates in the same same direction as the rotor

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