Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except maximum value of coupling angle supply voltage rotor excitation direction of rotation maximum value of coupling angle supply voltage rotor excitation direction of rotation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors As the load is applied to a synchronous motor, the motor takes more armature current because The rotor strengthens the rotating field causing more motor current The rotor by shifting its phase backward causes motor to take more current The back e.m.f. decreases causing an increase in motor current The increased load has to take more current The rotor strengthens the rotating field causing more motor current The rotor by shifting its phase backward causes motor to take more current The back e.m.f. decreases causing an increase in motor current The increased load has to take more current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Decrease Remain unchanged Increase None of the listed here Decrease Remain unchanged Increase None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on All of these load speed load angle All of these load speed load angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor. Less than The same as None of the listed here More than Less than The same as None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor is determined by its _____ kVA rating None of the listed here kW rating kVAR rating kVA rating None of the listed here kW rating kVAR rating ANSWER DOWNLOAD EXAMIANS APP
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