Synchronous Motors An over excited synchronous motor is used for Low torque loads Fluctuating loads Variable speed loads Power factor corrections Low torque loads Fluctuating loads Variable speed loads Power factor corrections ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Motor input Armature input Dc source Supply lines Motor input Armature input Dc source Supply lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-out torque pull-up torque pull-in torque None of these pull-out torque pull-up torque pull-in torque None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Windage friction Variable frequency Variable supply frequency Variable load Windage friction Variable frequency Variable supply frequency Variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Excitation winding gets disconnected Supply voltage fluctuates Supply voltage frequency changes Load in motor varies Excitation winding gets disconnected Supply voltage fluctuates Supply voltage frequency changes Load in motor varies ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Interchange any two stator lines None of the listed here Change supply frequency Reduce dc field excitation to zero Interchange any two stator lines None of the listed here Change supply frequency Reduce dc field excitation to zero ANSWER DOWNLOAD EXAMIANS APP
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