Synchronous Motors Synchronous capacitor is An ordinary static capacitor bank An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load None of the listed here An ordinary static capacitor bank An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load None of the listed here 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 under-excitation lagging power factor with over-excitation leading power factor with over-excitation no change of power factor leading power factor with under-excitation lagging power factor with over-excitation leading power factor with over-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ None of the listed here Mechanical load Field excitation Supply frequency None of the listed here Mechanical load Field excitation Supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 60° 45° 90° 120° 60° 45° 90° 120° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Torque angle Synchronising angle Power factor angle Angle of retardation Torque angle Synchronising angle Power factor angle Angle of retardation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be started by Pony motor Provinding damper winding Dc compound motor All of the listed here Pony motor Provinding damper winding Dc compound motor All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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