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 lagging power factor with over-excitation leading power factor with over-excitation leading power factor with under-excitation no change of power factor lagging power factor with over-excitation leading power factor with over-excitation leading power factor with under-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving 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 A centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have Three slip rings Two slip rings One slip rings No slip rings Three slip rings Two slip rings One slip rings No slip rings ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develops maximum power when load angle is 120° 90° 45° 60° 120° 90° 45° 60° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 lagging None of the listed here 0.8 leading Unity 0.8 lagging None of the listed here 0.8 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 45° 120° 90° 60° 45° 120° 90° 60° ANSWER DOWNLOAD EXAMIANS APP
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