Synchronous Motors The standard full-load power factor ratings for synchronous motors are unity or 0.8 leading zero or 0.8 leading unity or zero unity or 0.8 lagging unity or 0.8 leading zero or 0.8 leading unity or zero unity or 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Core loss Bearing friction loss Windage loss Copper loss Core loss Bearing friction loss Windage loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 120° 90° 60° 45° 120° 90° 60° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Change supply frequency Reduce dc field excitation to zero None of the listed here Interchange any two stator lines Change supply frequency Reduce dc field excitation to zero None of the listed here Interchange any two stator lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be started by Pony motor Dc compound motor All of the listed here Provinding damper winding Pony motor Dc compound motor All of the listed here Provinding damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be None of these equal to the supply voltage more than the supply voltage less than the supply voltage None of these equal to the supply voltage more than the supply voltage less than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
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