Synchronous Motors When the synchronous motor is pulled out of synchronism, the stator current _______ Is increased too much Remains unchanged Becomes zero Is decreased too much Is increased too much Remains unchanged Becomes zero Is decreased too much ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has a small value of inherent regulation all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit a small value of inherent regulation all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its power factor may be varied at will its speed may be controlled more easily its speed is independent of supply frequency None of these its power factor may be varied at will its speed may be controlled more easily its speed is independent of supply frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ None of the listed here Under excited Normally excited Over excited None of the listed here Under excited Normally excited Over excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be lagging zero unity leading lagging zero unity leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one second None of these one hour one minute one second None of these one hour one minute ANSWER DOWNLOAD EXAMIANS APP
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