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 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 the excitation is said to be zero per cent the torque generated is maximum the excitation is said to be hundred per cent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For power factor correction, synchronous motors operate at normal load with zero excitation no-load and greatly over-excited fields normal load with minimum excitation no-load and under-excited fields normal load with zero excitation no-load and greatly over-excited fields normal load with minimum excitation no-load and under-excited fields ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then it runs at a very high speed it runs at a slower speed the motor stops it continues to run at the same speed it runs at a very high speed it runs at a slower speed the motor stops it continues to run at the same speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Variable speed Frequent stopping Infrequent starting Sudden application of heavy loads Variable speed Frequent stopping Infrequent starting Sudden application of heavy loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An ordinary static capacitor bank None of the listed here An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have Two slip rings One slip rings Three slip rings No slip rings Two slip rings One slip rings Three slip rings No slip rings ANSWER DOWNLOAD EXAMIANS APP
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