A 3-phase induction motor runs at almost 1500 rpm at no load and 900 r – McqOptions

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1.	A 3-phase induction motor runs at almost 1500 rpm at no load and 900 rpm at full load when supplied with power from a 50 Hz, 3-phase supply. What is the corresponding speed of the rotor field with respect to the rotor?
A.	300 revolution per minute
B.	400 revolution per minute
C.	600 revolution per minute
D.	500 revolution per minute
Answer» D. 500 revolution per minute

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