Synchronous Motors The net armature voltage of a synchronous motor is equal to the arithmetic difference of Eb and V arithmetic sum of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic difference of Eb and V arithmetic sum of Eb and V vector sum of Eb and V vector difference of Eh and V ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 30° electrical 45° electrical 90° electrical 0° electrical 30° electrical 45° electrical 90° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 30 None of the listed here 16 36 30 None of the listed here 16 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always Positive 1% Zero 0.5% Positive 1% Zero 0.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at unity power factor 0.707 power factor lagging 0.707 power factor leading zero power factor leading unity power factor 0.707 power factor lagging 0.707 power factor leading zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS