Synchronous Motors A synchronous motor can develop synchronous torque when under loaded only at synchronous speed below or above synchronous speed while over-excited when under loaded only at synchronous speed below or above synchronous speed while over-excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor resembles an alternator a rotary converter a series motor an induction motor an alternator a rotary converter a series motor an induction motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 lagging 0.8 leading Unity None of the listed here 0.8 lagging 0.8 leading Unity None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Change of D.C. excitation of a synchronous motor changes Motor speed Applied voltage of the motor Power factor of power drawn by the motor Any of the above Motor speed Applied voltage of the motor Power factor of power drawn by the motor Any of the above ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to square of Directly proportional to Independent of Invesely proportional to Directly proportional to square of Directly proportional to Independent of Invesely proportional to ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is under-loaded None of these supplied with unbalanced voltage over-loaded under-loaded None of these supplied with unbalanced voltage over-loaded ANSWER DOWNLOAD EXAMIANS APP
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