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 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 the stator current will be very high the back e.m.f. will be more than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing the load using brakes changing the supply voltage changing frequency changing the load using brakes changing the supply voltage changing frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be leading zero unity lagging leading zero unity lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The percentage slip in case of a synchronous motor is 0.005 1 zero 0.01 0.005 1 zero 0.01 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of the synchronous motor has higher values for Low excitation only Both higher and low excitation None of the listed here Higher excitation only Low excitation only Both higher and low excitation None of the listed here Higher excitation only ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Flux density Horse power rating Speed All of the listed here Flux density Horse power rating Speed All of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS