Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Increase None of the listed here Decrease Remain unchanged Increase None of the listed here Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has Good speed regulation High stability limit Lower stability limit Good voltage regulation Good speed regulation High stability limit Lower stability limit Good voltage regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field synchronous motor has large air gap mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field synchronous motor has large air gap mechanical load on the motor can be adjusted ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develops maximum power when load angle is 45° 60° 120° 90° 45° 60° 120° 90° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is less equal twice more less equal twice more ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ Low speed, high output High speed, high output None of the listed here High speed, low output Low speed, high output High speed, high output None of the listed here High speed, low output ANSWER DOWNLOAD EXAMIANS APP
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