Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be zero the stator current will be very small the back e.m.f. will be more than the supply voltage the stator current will be very high the stator current will be zero the stator current will be very small the back e.m.f. will be more than the supply voltage the stator current will be very high ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? By changing the supply frequency By interchanging any two phases By changing the load By changing the applied voltage By changing the supply frequency By interchanging any two phases By changing the load By changing the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For power factor correction, synchronous motors operate at normal load with zero excitation normal load with minimum excitation no-load and greatly over-excited fields no-load and under-excited fields normal load with zero excitation normal load with minimum excitation no-load and greatly over-excited fields no-load and under-excited fields ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Supply frequency None of the listed here Mechanical load Field excitation Supply frequency None of the listed here Mechanical load Field excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque when under loaded while over-excited below or above synchronous speed only at synchronous speed when under loaded while over-excited below or above synchronous speed only at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An ordinary static capacitor bank An over excited synchronous motor running without mechanical load None of the listed here An over excited synchronous motor driving mechanical load An ordinary static capacitor bank An over excited synchronous motor running without mechanical load None of the listed here An over excited synchronous motor driving mechanical load ANSWER DOWNLOAD EXAMIANS APP
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