Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Under-excited Over-excited All of these Normally excited Under-excited Over-excited All of these Normally excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Infrequent starting Sudden application of heavy loads Frequent stopping Variable speed Infrequent starting Sudden application of heavy loads Frequent stopping Variable speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here Normally excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque when under loaded below or above synchronous speed while over-excited only at synchronous speed when under loaded below or above synchronous speed while over-excited only at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with the load Varies with power factor Varies with speed Remains constant at all loads Varies with the load Varies with power factor Varies with speed Remains constant at all loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One hour None of the listed here One minute One second One hour None of the listed here One minute One second ANSWER DOWNLOAD EXAMIANS APP
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