Synchronous Motors An under excited synchronous motor behaves as_______ A resistor A capacitor None of the listed here An inductor A resistor A capacitor None of the listed here An inductor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 75 to 80% 85 to 95% 60 to 70% 99 to 99.5% 75 to 80% 85 to 95% 60 to 70% 99 to 99.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Core loss Copper loss Bearing friction loss Windage loss Core loss Copper loss Bearing friction loss Windage loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 10 percent 4 percent 2 percent Zero 10 percent 4 percent 2 percent Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor. None of the listed here The same as More than Less than None of the listed here The same as More than Less than ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Is at standstill Approches half synchronous speed None of the listed here Approches synchronous speed Is at standstill Approches half synchronous speed None of the listed here Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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