Question:
Starting torque in the case of a 3-phase synchronous motor is:
Starting torque in the case of a 3-phase synchronous motor is:
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Synchronous motors require external means to bring them up to speed since they have zero starting torque.
Updated On: May 4, 2025
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The Correct Option is B
Solution and Explanation
The starting torque of a 3-phase synchronous motor is zero at standstill because, at startup, the synchronous motor is not yet in synchronism with the supply frequency. Since the rotor does not initially rotate in synchronism with the stator field, the torque produced is zero.
Thus, the correct answer is zero starting torque.
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