Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Remains unchanged Is decreased too much Become zero Is increased too much Remains unchanged Is decreased too much Become zero Is increased too much ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Polarity of rotor poles Current to field winding Supply phase sequence None of the listed here Polarity of rotor poles Current to field winding Supply phase sequence None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 90° 60° 120° 45° 90° 60° 120° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about None of the listed here One hour One second One minute None of the listed here One hour One second One minute ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry Direct current Alternating current No current All of the listed here Direct current Alternating current No current All of the listed here 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 45° (electrical) behind stator poles Coincident with statorbpoles Mid way between N and S poles of stator None of the listed here 45° (electrical) behind stator poles Coincident with statorbpoles Mid way between N and S poles of stator ANSWER DOWNLOAD EXAMIANS APP
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