Synchronous motor construction
In this following video we have disclosed the construction details of Synchronous motor.
video credits to A maniramakrishna
•A synchronous motor is a constant speed motor.
•It
can be operated over a wide range of power factors.
Advantages
of synchronous motor
•Power factor can be controlled easily.
•Motor can work at lagging, leading & upf.
•Speed is constant and independent of
load.
Disadvantages
of synchronous motors
•It is not self starting motor.
•It requires dc excitation.
•Initial cost is very high.
•It can not be used for variable speed
drives.
•If the motor is over loaded it may fall
out of step.
•It has a tendency to Hunt.
Applications
of synchronous motors
It
can be used as power factor corrector.
Constant
speed applications like clocks,air compressors & centrifugal pumps
Improving
voltage regulation of long transmission lines
Frequency
changers
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