Synchronous Motors The armature current of the synchronous motor has higher values for Low excitation only Higher excitation only None of the listed here Both higher and low excitation Low excitation only Higher excitation only None of the listed here Both higher and low excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ None of the listed here Coincident with statorbpoles 45° (electrical) behind stator poles Mid way between N and S poles of stator None of the listed here Coincident with statorbpoles 45° (electrical) behind stator poles Mid way between N and S poles of stator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Increase None of the listed here Remain unchanged Decrease Increase None of the listed here Remain unchanged Decrease ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Leading power factor Unity power factor only Lagging power factor only Lagging, leading and unity power factors Leading power factor Unity power factor only Lagging power factor only Lagging, leading and unity power factors ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Zero Two One Infinity Zero Two One Infinity ANSWER DOWNLOAD EXAMIANS APP
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