Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except rotor excitation direction of rotation maximum value of coupling angle supply voltage rotor excitation direction of rotation maximum value of coupling angle supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Unity power factor only Lagging power factor only Leading power factor Lagging, leading and unity power factors Unity power factor only Lagging power factor only Leading power factor Lagging, leading and unity power factors ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when None of the listed here The armature current is minimum The armature current is zero The armature current is maximum None of the listed here The armature current is minimum The armature current is zero The armature current is maximum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Damper winding in its pole faces Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Magnetic locking between stator and rotor poles Damper winding in its pole faces Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Magnetic locking between stator and rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ 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 Approches half synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 36 30 None of the listed here 16 36 30 None of the listed here 16 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS