Synchronous Motors The rotor of a synchronous motor is Salient pole type None of the listed here Nonsalient pole type Identical to that of a dc motor Salient pole type None of the listed here Nonsalient pole type Identical to that of a dc motor 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 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 no change of power factor leading power factor with under-excitation lagging power factor with over-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 0° 45° 75° 30° 0° 45° 75° 30° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is a ______ motor. Variable pf None of the listed here Variable speed Singly fed Variable pf None of the listed here Variable speed Singly fed 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 more less twice equal more less twice ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An ordinary static capacitor bank None of the listed here An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load ANSWER DOWNLOAD EXAMIANS APP
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