Synchronous Motors An over excited synchronous motor is used for Fluctuating loads Low torque loads Variable speed loads Power factor corrections Fluctuating loads Low torque loads Variable speed loads Power factor corrections ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Change of D.C. excitation of a synchronous motor changes Motor speed Any of the above Applied voltage of the motor Power factor of power drawn by the motor Motor speed Any of the above Applied voltage of the motor Power factor of power drawn by the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always Zero 1% Positive 0.5% Zero 1% Positive 0.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 lagging Unity 0.8 leading None of the listed here 0.8 lagging Unity 0.8 leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Flux density Horse power rating All of the listed here Speed Flux density Horse power rating All of the listed here Speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ Maximum Zero minimum None of the listed here Maximum Zero minimum None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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