Synchronous Motors A synchronous motor runs at speed ranging from ______ 150 to 1800 rpm 1800 to 3600 rpm 3600 to 6000 rpm None of the listed here 150 to 1800 rpm 1800 to 3600 rpm 3600 to 6000 rpm None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on rotor poles Damper winding on stator as well as rotor poles None of the listed here Damper winding on stator Damper winding on rotor poles Damper winding on stator as well as rotor poles None of the listed here Damper winding on stator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is a ______ motor. Singly fed None of the listed here Variable speed Variable pf Singly fed None of the listed here Variable speed Variable pf ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Which of the following motors is non self starting? Wound rotor induction motor Squirrel cage induction motor Dc series motor Synchronous motor Wound rotor induction motor Squirrel cage induction motor Dc series motor Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Increases hunting of the motor Reduces windage losses Improve pf of the motor Serves to start the motor Increases hunting of the motor Reduces windage losses Improve pf of the motor Serves to start the motor ANSWER DOWNLOAD EXAMIANS APP
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