Synchronous Motors The speed regulation of a synchronous motor is always Zero 0.5% Positive 1% Zero 0.5% Positive 1% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then the excitation is said to be zero per cent the excitation is said to be hundred per cent the motor is said to be fully loaded the torque generated is maximum the excitation is said to be zero per cent the excitation is said to be hundred per cent the motor is said to be fully loaded the torque generated is maximum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with the load Varies with power factor Remains constant at all loads Varies with speed Varies with the load Varies with power factor Remains constant at all loads Varies with speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is 2 percent 10 percent 4 percent Zero 2 percent 10 percent 4 percent Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 45° electrical 90° electrical 30° electrical 0° electrical 45° electrical 90° electrical 30° electrical 0° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. Unity 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading ANSWER DOWNLOAD EXAMIANS APP
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