Synchronous Motors Hunting in a synchronous motor cannot be due to variable frequency variable supply voltage windage friction variable load variable frequency variable supply voltage windage friction variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is independent of _________. Torque angle Applied stator voltage Speed Field excitation Torque angle Applied stator voltage Speed Field excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have no change of power factor leading power factor with over-excitation leading power factor with under-excitation lagging power factor with over-excitation no change of power factor leading power factor with over-excitation leading power factor with under-excitation lagging power factor with over-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Excitation winding gets disconnected Load in motor varies Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies Supply voltage fluctuates Supply voltage frequency changes 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
Synchronous Motors An over excited synchronous motor is used for Fluctuating loads Low torque loads Power factor corrections Variable speed loads Fluctuating loads Low torque loads Power factor corrections Variable speed loads ANSWER DOWNLOAD EXAMIANS APP
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