Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? By interchanging any two phases By changing the load By changing the supply frequency By changing the applied voltage By interchanging any two phases By changing the load By changing the supply frequency By changing the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor with large air gap has All of the listed here A higher value of stability limit A higher synchronizing power which makes the machine less sensitive to load variations A small value of inherent regulation All of the listed here A higher value of stability limit A higher synchronizing power which makes the machine less sensitive to load variations A small value of inherent regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. Increases Decreases None of the listed here Remains unchanged Increases Decreases None of the listed here Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about None of these one minute one hour one second None of these one minute one hour one second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is Zero 2 percent 4 percent 10 percent Zero 2 percent 4 percent 10 percent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Frequent stopping Variable speed Sudden application of heavy loads Infrequent starting Frequent stopping Variable speed Sudden application of heavy loads Infrequent starting ANSWER DOWNLOAD EXAMIANS APP
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