In case one phase of a three-phase synchronous motor is short-circuit – McqOptions

MCQOPTIONS

1.	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» B. run at 2/3 of synchronous speed

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