Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be very high the back e.m.f. will be more than the supply voltage the stator current will be zero the stator current will be very small the stator current will be very high the back e.m.f. will be more than the supply voltage the stator current will be zero the stator current will be very small ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Small synchronous motors are started by _______ Pony motor None of the listed here Damper winding Variable frequency source Pony motor None of the listed here Damper winding Variable frequency source ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Remain unchanged Decrease Increase None of the listed here Remain unchanged Decrease Increase None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 100 cycles/second None of the listed here 25 cycles/ second 50 cycles/second 100 cycles/second None of the listed here 25 cycles/ second 50 cycles/second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Dc source Supply lines Armature input Motor input Dc source Supply lines Armature input Motor input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on stator Damper winding on stator as well as rotor poles Damper winding on rotor poles None of the listed here Damper winding on stator Damper winding on stator as well as rotor poles Damper winding on rotor poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS