Synchronous Motors The capacity of a synchronous capacitor is generally in the range of VAR MVAR kVAR None of the listed here VAR MVAR kVAR None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ All of these Normally excited Under-excited Over-excited All of these Normally excited Under-excited Over-excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 90° 45° 60° 120° 90° 45° 60° 120° 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 lagging power factor with over-excitation leading power factor with under-excitation leading power factor with over-excitation no change of power factor lagging power factor with over-excitation leading power factor with under-excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque None of these pull-out torque pull-up torque pull-in torque None of these pull-out torque pull-up torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ None of the listed here Is a doubly fed machine Has no losses Has a damper winding None of the listed here Is a doubly fed machine Has no losses Has a damper winding ANSWER DOWNLOAD EXAMIANS APP
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