Synchronous Motors Hunting in a synchronous motor cannot be due to variable supply voltage variable load windage friction variable frequency variable supply voltage variable load windage friction variable frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Always remains constant Increases as the load increases Decreases as the load decreases None of the listed here Always remains constant Increases as the load increases Decreases as the load decreases None of the listed here 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 equal twice less more equal twice less more ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous capacitor is an over excited motor running at ________ No load None of the listed here Half full load Full load No load None of the listed here Half full load Full load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has good speed regulation good voltage regulation lower stability limit high stability limit good speed regulation good voltage regulation lower stability limit high stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Reduce dc field excitation to zero Change supply frequency Interchange any two stator lines None of the listed here Reduce dc field excitation to zero Change supply frequency Interchange any two stator lines None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS