Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.5 leading 0.8 lagging 0.8 leading Unity 0.5 leading 0.8 lagging 0.8 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Reduces windage losses Serves to start the motor Improve pf of the motor Increases hunting of the motor Reduces windage losses Serves to start the motor Improve pf of the motor Increases hunting of the motor 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 Damper winding in its pole faces Magnetic locking between stator and rotor poles Induced emf in rotor field winding by stator flux Compulsion due to lenz's law Damper winding in its pole faces Magnetic locking between stator and rotor poles Induced emf in rotor field winding by stator flux ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Mechanical synchronizer Voltage booster Noise generator Phase advancer Mechanical synchronizer Voltage booster Noise generator Phase advancer ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has High stability limit Good voltage regulation Lower stability limit Good speed regulation High stability limit Good voltage regulation Lower stability limit Good speed regulation 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
EXAMIANS