Electrical Engineering > GATE 2025 > Induction Motors
A 3-phase, 400 V, 4 pole, 50 Hz star connected induction motor has the following parameters referred to the stator: Rr'=1Ω, Xs=Xr'=2Ω
Stator resistance, magnetizing reactance and core loss of the motor are neglected. The motor is run with constant V/f control from a drive. For maximum starting torque, the voltage and frequency output, respectively, from the drive, is closest to,
A
400 V and 50 Hz
B
200 V and 25 Hz
C
100 V and 12.5 Hz
D
300 V and 37.5 Hz

Correct : b

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