Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Field excitation Supply frequency Mechanical load None of the listed here Field excitation Supply frequency Mechanical load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry All of the listed here No current Alternating current Direct current All of the listed here No current Alternating current Direct current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ Maximum Zero None of the listed here minimum Maximum Zero None of the listed here minimum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has good voltage regulation lower stability limit high stability limit good speed regulation good voltage regulation lower stability limit high stability limit good speed regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In case one phase of a three-phase synchronous motor is short-circuited the motor will run with excessive vibrations not start run at 2/3 of synchronous speed take less than the rated load run with excessive vibrations not start run at 2/3 of synchronous speed take less than the rated load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 4 percent 2 percent 10 percent Zero 4 percent 2 percent 10 percent Zero ANSWER DOWNLOAD EXAMIANS APP
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