In case one phase of a three-phase synchronous motor is short-circuited the motor will
A. not start
B. run at 2/3 of synchronous speed
C. run with excessive vibrations
D. take less than the rated load
Answer:A
In case one phase of a three-phase synchronous motor is short-circuited the motor will
A. not start B. run at 2/3 of synchronous speed C. run with excessive vibrations D. take less than the rated load
Explanation: Single phasing in synchronous motor: