Synchronous Motors A synchronous motor can develop synchronous torque only at synchronous speed when under loaded while over-excited below or above synchronous speed only at synchronous speed when under loaded while over-excited below or above synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on All of these speed load angle load All of these speed load angle load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 0° 45° 30° 75° 0° 45° 30° 75° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Sudden application of heavy loads Frequent stopping Infrequent starting Variable speed Sudden application of heavy loads Frequent stopping Infrequent starting Variable speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The percentage slip in case of a synchronous motor is 0.01 0.005 1 zero 0.01 0.005 1 zero ANSWER DOWNLOAD EXAMIANS APP