When the supply voltage to an induction motor is reduced by 10%, the maximum torque will decrease by about 

A) 5% B) 10% C) 20% D) 40%

1 Answer

Answer :

When the supply voltage to an induction motor is reduced by 10%, the maximum torque will decrease by about 20%

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Description : A 3-phase induction motor is driving a constant torque load at rated voltage and frequency. If both voltage and frequency are halved, following statements relate to the new condition if stator resistance, leakage reactance and core loss are ... (A) All (B) 1, 2 and 3 (C) 2, 3 and 4 (D) 1 and 4

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