Synchronous Motors Hunting in a synchronous motor can not be due to Variable load Variable supply frequency Windage friction Variable frequency Variable load Variable supply frequency Windage friction Variable frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ More than rated horseppwer output None of the listed here More than rated rotor current Less than rated horsepower output More than rated horseppwer output None of the listed here More than rated rotor current Less than rated horsepower output 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 The rotor copper losses, in a synchronous motor, are met by armature input supply lines c. source motor input armature input supply lines c. source motor input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has a small value of inherent regulation a higher synchronizing power which makes the machine less sensitive to load variations all of the listed here a higher value of stability limit a small value of inherent regulation a higher synchronizing power which makes the machine less sensitive to load variations all of the listed here a higher value of stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Dust and dirt accumulation on motor winding will result in Rise in winding temperature Eddy current flow Increased core losses Shorting of coils Rise in winding temperature Eddy current flow Increased core losses Shorting of coils ANSWER DOWNLOAD EXAMIANS APP
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