Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be leading lagging unity zero leading lagging unity zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be less than the supply voltage equal to the supply voltage more than the supply voltage None of these less than the supply voltage equal to the supply voltage more than the supply voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be zero unity lagging leading zero unity lagging leading 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 torque generated is maximum the excitation is said to be hundred per cent the motor is said to be fully loaded the excitation is said to be zero per cent the torque generated is maximum the excitation is said to be hundred per cent the motor is said to be fully loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develops maximum power when load angle is 90° 45° 120° 60° 90° 45° 120° 60° ANSWER DOWNLOAD EXAMIANS APP
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