Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Interchange any two stator lines Reduce dc field excitation to zero Change supply frequency None of the listed here Interchange any two stator lines Reduce dc field excitation to zero Change supply frequency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 45° 0° 30° 75° 45° 0° 30° 75° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ None of the listed here Has a damper winding Is a doubly fed machine Has no losses None of the listed here Has a damper winding Is a doubly fed machine Has no losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has high stability limit lower stability limit good voltage regulation good speed regulation high stability limit lower stability limit good voltage regulation good speed regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The shaft of synchronous motor is made of Alcino Chrome steel Mild steel Stainless steel Alcino Chrome steel Mild steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when The armature current is maximum None of the listed here The armature current is zero The armature current is minimum The armature current is maximum None of the listed here The armature current is zero The armature current is minimum ANSWER DOWNLOAD EXAMIANS APP
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