Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Current to field winding Polarity of rotor poles Supply phase sequence None of the listed here Current to field winding Polarity of rotor poles Supply phase sequence None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 4 percent 10 percent 2 percent Zero 4 percent 10 percent 2 percent Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A centrifugal pump A reciprocating air compressor Any of the listed here A centrifugal blower A centrifugal pump A reciprocating air compressor Any of the listed here A centrifugal blower ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is more equal twice less more equal twice less ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 30 None of the listed here 16 36 30 None of the listed here 16 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as None of these pull-up torque pull-in torque pull-out torque None of these pull-up torque pull-in torque pull-out torque ANSWER DOWNLOAD EXAMIANS APP
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