Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 0.5 5 to 10 1.25 to 3.5 6 to 9 0.5 5 to 10 1.25 to 3.5 6 to 9 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable frequency Windage friction Variable load Variable supply frequency Variable frequency Windage friction Variable load Variable supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. Remains unchanged Increases None of the listed here Decreases Remains unchanged Increases None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Invesely proportional to Directly proportional to Directly proportional to square of Independent of Invesely proportional to Directly proportional to Directly proportional to square of Independent of ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Damper winding in its pole faces Induced emf in rotor field winding by stator flux Compulsion due to lenz's law Magnetic locking between stator and rotor poles Damper winding in its pole faces Induced emf in rotor field winding by stator flux Compulsion due to lenz's law Magnetic locking between stator and rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ None of the listed here Interchange any two stator lines Change supply frequency Reduce dc field excitation to zero None of the listed here Interchange any two stator lines Change supply frequency Reduce dc field excitation to zero ANSWER DOWNLOAD EXAMIANS APP
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