A 10 kW, 400 V, 3-phase, 4-pole, 50 Hz induction motor develops the r – McqOptions

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1.	A 10 kW, 400 V, 3-phase, 4-pole, 50 Hz induction motor develops the rated output at rated voltage with its slip rings shorted. The maximum torque equal to twice the full load torque occurs at the slip of 10% with zero external resistance in the rotor circuit. The slip at the full load torque will be?
A.	2.7%
B.	5%
C.	3.7%
D.	10%
Answer» B. 5%

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