Synchronous Motors A synchronous motor can develop synchronous torque when under loaded below or above synchronous speed while over-excited only at synchronous speed when under loaded below or above synchronous speed while over-excited only at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are unity or zero zero or 0.8 leading unity or 0.8 lagging unity or 0.8 leading unity or zero zero or 0.8 leading unity or 0.8 lagging unity or 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ None of the listed here 25 cycles/ second 100 cycles/second 50 cycles/second None of the listed here 25 cycles/ second 100 cycles/second 50 cycles/second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The net armature voltage of a synchronous motor is equal to the arithmetic sum of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic difference of Eb and V arithmetic sum of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic difference of Eb and V ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Mechanical synchronizer Phase advancer Voltage booster Noise generator Mechanical synchronizer Phase advancer Voltage booster Noise generator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Change of D.C. excitation of a synchronous motor changes Any of the above Power factor of power drawn by the motor Applied voltage of the motor Motor speed Any of the above Power factor of power drawn by the motor Applied voltage of the motor Motor speed ANSWER DOWNLOAD EXAMIANS APP
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