Synchronous Motors An over excited synchronous motor is used for Power factor corrections Low torque loads Fluctuating loads Variable speed loads Power factor corrections Low torque loads Fluctuating loads Variable speed loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A centrifugal blower Any of the listed here A centrifugal pump A reciprocating air compressor A centrifugal blower Any of the listed here A centrifugal pump A reciprocating air compressor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry No current All of the listed here Alternating current Direct current No current All of the listed here Alternating current Direct current 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 None of the listed here The same as More than Less than None of the listed here The same as More than 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 If the field of a synchronous motor is underexcited, the power factor will be zero unity leading lagging zero unity leading lagging ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS