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 is twice the full load torque occurs at the slip of 10% with zero external resistance in the rotor circuit. An external resistance is now tripled in the rotor circuit. Then the stator current will _________
A.	remain constant
B.	increase
C.	decrease
D.	any of the mentioned
Answer» B. increase

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