Synchronous Motors Damper winding in a synchronous motor________ Increases hunting of the motor Improve pf of the motor Reduces windage losses Serves to start the motor Increases hunting of the motor Improve pf of the motor Reduces windage losses Serves to start the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable load Windage friction Variable frequency Variable supply frequency Variable load Windage friction Variable frequency Variable supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Dc source Motor input Armature input Supply lines Dc source Motor input Armature input Supply lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ 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 Interchange any two stator lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? By interchanging any two phases By changing the load By changing the applied voltage By changing the supply frequency By interchanging any two phases By changing the load By changing the applied voltage By changing the supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Over excited Under excited None of the listed here Normally excited Over excited Under excited None of the listed here Normally excited ANSWER DOWNLOAD EXAMIANS APP
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