Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Is increased too much Become zero Remains unchanged Is decreased too much Is increased too much Become zero Remains unchanged Is decreased too much ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing frequency using brakes changing the supply voltage changing the load changing frequency using brakes changing the supply voltage changing the load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 2 percent Zero 4 percent 10 percent 2 percent Zero 4 percent 10 percent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on speed load angle All of these load speed load angle All of these load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable supply frequency Variable frequency Windage friction Variable load Variable supply frequency Variable frequency Windage friction Variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Supply frequency None of the listed here Field excitation Mechanical load Supply frequency None of the listed here Field excitation Mechanical load ANSWER DOWNLOAD EXAMIANS APP
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