Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ None of the listed here Low speed, high output High speed, high output High speed, low output None of the listed here Low speed, high output High speed, high output High speed, low output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is independent of _________. Speed Applied stator voltage Torque angle Field excitation Speed Applied stator voltage Torque angle Field excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Angle of retardation Power factor angle Torque angle Synchronising angle Angle of retardation Power factor angle Torque angle Synchronising angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Magnetic locking between stator and rotor poles Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces Magnetic locking between stator and rotor poles Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Remains constant at all loads Varies with speed Varies with the load Varies with power factor Remains constant at all loads Varies with speed Varies with the load Varies with power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ None of the listed here 100 cycles/second 25 cycles/ second 50 cycles/second None of the listed here 100 cycles/second 25 cycles/ second 50 cycles/second ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS