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If the operating voltage of the induction motor is increased by twice while keeping the frequency of the operation constant. Then the new starting torque will be?(a) 4*T(b) 1/4*T(c) T(d) 2*TThis question was addressed to me during an online exam.I'd like to ask this question from Induction Motor Phasor Diagram topic in division Induction Machines of Electrical Machines

Answer» RIGHT option is (a) 4*T

To explain I WOULD say: TST α V^2.

T2/T1 = (2/1)^2

T2 = 4*T1.


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