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 interchanging any two phases By changing the applied voltage By changing the load By changing the supply frequency By interchanging any two phases By changing the applied voltage By changing the load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to Independent of Directly proportional to square of Invesely proportional to Directly proportional to Independent of Directly proportional to square of Invesely proportional to ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Frequent stopping Infrequent starting Sudden application of heavy loads Variable speed Frequent stopping Infrequent starting Sudden application of heavy loads Variable speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on rotor poles None of the listed here Damper winding on stator Damper winding on stator as well as rotor poles Damper winding on rotor poles None of the listed here Damper winding on stator Damper winding on stator as well as rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motor always run at The synchronous speed None of the listed here More than synchronous speed Less than synchronous speed The synchronous speed None of the listed here More than synchronous speed Less than synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque None of these pull-out torque pull-up torque pull-in torque None of these pull-out torque pull-up torque ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS