Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ None of the listed here 30 16 36 None of the listed here 30 16 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 45° electrical 30° electrical 0° electrical 90° electrical 45° electrical 30° electrical 0° electrical 90° electrical 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-out torque pull-in torque pull-up torque None of these pull-out torque pull-in torque pull-up torque None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back emf in the stator of a synchronous motor depends on Rotor speed Rotor excitation None of the listed here Flux density Rotor speed Rotor excitation None of the listed here Flux density ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is a ______ motor. Variable speed Singly fed None of the listed here Variable pf Variable speed Singly fed None of the listed here Variable pf ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
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