Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under loaded Under excited Over loaded Over excited Under loaded Under excited Over loaded Over excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then the motor stops it runs at a very high speed it continues to run at the same speed it runs at a slower speed the motor stops it runs at a very high speed it continues to run at the same speed it runs at a slower speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by using brakes changing the load changing frequency changing the supply voltage using brakes changing the load changing frequency changing the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Normally excited Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one hour one minute one second None of these one hour one minute one second None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? 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 By interchanging any two phases By changing the load ANSWER DOWNLOAD EXAMIANS APP