Synchronous Motors The armature current of the synchronous motor has higher values for Both higher and low excitation Higher excitation only None of the listed here Low excitation only Both higher and low excitation Higher excitation only None of the listed here Low excitation only ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The net armature voltage of a synchronous motor is equal to the arithmetic difference of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic sum of Eb and V arithmetic difference of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic sum of Eb and V ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Approches half synchronous speed Is at standstill Approches synchronous speed None of the listed here Approches half synchronous speed Is at standstill Approches synchronous speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces Magnetic locking between stator and rotor poles Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces Magnetic locking between stator and rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Leading power factor Lagging, leading and unity power factors Lagging power factor only Unity power factor only Leading power factor Lagging, leading and unity power factors Lagging power factor only Unity power factor only 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
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