EE MCQ
EE MCQ
Home
Quiz
Contact Us
Synchronous Motors
Change of D.C. excitation of a synchronous motor changes
Any of the above
Motor speed
Power factor of power drawn by the motor
Applied voltage of the motor
Any of the above
Motor speed
Power factor of power drawn by the motor
Applied voltage of the motor
Answer
Download EE MCQ app
Related Question
Synchronous Motors
An under excited synchronous motor behaves as_______
An inductor
A resistor
A capacitor
None of the listed here
An inductor
A resistor
A capacitor
None of the listed here
Answer
Download EE MCQ app
Synchronous Motors
A synchronous motor will always stop when
Load in motor varies
Supply voltage fluctuates
Excitation winding gets disconnected
Supply voltage frequency changes
Load in motor varies
Supply voltage fluctuates
Excitation winding gets disconnected
Supply voltage frequency changes
Answer
Download EE MCQ app
Synchronous Motors
In a synchronous motor, the rotor copper loss are met by ______
Supply lines
Motor input
Dc source
Armature input
Supply lines
Motor input
Dc source
Armature input
Answer
Download EE MCQ app
Synchronous Motors
The rotor copper losses, in a synchronous motor, are met by
supply lines
c. source
armature input
motor input
supply lines
c. source
armature input
motor input
Answer
Download EE MCQ app
Synchronous Motors
A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have
no change of power factor
leading power factor with over-excitation
leading power factor with under-excitation
lagging power factor with over-excitation
no change of power factor
leading power factor with over-excitation
leading power factor with under-excitation
lagging power factor with over-excitation
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram