In a 3-phase synchronous motor, the negative phase sequence exists when the motor is
A)supplied with unbalanced voltage
B)under-loaded
C)over-loaded
D)none of the above

Question

Quizplus · Accepted Answer

Negative phase sequence occurs in a 3-phase synchronous motor when it is supplied with unbalanced voltage, leading to unequal phase voltages and potential issues with motor operation.

In a 3-Phase Synchronous Motor, the Negative Phase Sequence Exists