Synchronous Motors Dust and dirt accumulation on motor winding will result in Rise in winding temperature Increased core losses Shorting of coils Eddy current flow Rise in winding temperature Increased core losses Shorting of coils Eddy current flow ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is None of the listed here An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load An ordinary static capacitor bank 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 lagging power factor with over-excitation no change of power factor leading power factor with under-excitation leading power factor with over-excitation lagging power factor with over-excitation no change of power factor leading power factor with under-excitation leading power factor with over-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Mostly, synchronous motors are of Alternator type machines Salient pole type machines Induction type machines Smooth cylindrical type machines Alternator type machines Salient pole type machines Induction type machines Smooth cylindrical type machines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. Unity 0.8 lagging None of the listed here 0.8 leading Unity 0.8 lagging None of the listed here 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under excited Under loaded Over excited Over loaded Under excited Under loaded Over excited Over loaded ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS