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Write short notes on Switched reluctance motor

Write short notes on Switched reluctance motor

Answers

gregory
Switched Reluctance Motor :
This type of motor has either conventional split phase stator and a centrifugal switch for
cutting off auxiliary winding or a stator similar to that of permanent split capacitor run motor.
The stator produces resolving field. The working of this motor is that when a piece of
magnetic material is located in a magnetic field, a force acts on the material, tending to bring
it into the most dense portion of a field. The force tends to align the specimen of material in
such a way that the reluctance of the magnetic paths that lies through the material will be
minimum.
When stator winding is energized, the revolving magnetic field exerts reluctance
torque on the unsymmetrical rotor tending to align the salient pole axis of the rotor with the
axis of resolving magnetic field. If the reluctance torque is sufficient to start the motor and
its load, the rotor will pull into step with the revolving field and continue to run at speed of
revolving field. However, rotor poles lag behind stator poles by certain angle known as
torque angle.
The constant speed characteristic of a reluctance motor makes it very suitable for
signaling devices, recording instruments, timers, phonograph etc.
gregorymasila answered the question on February 22, 2018 at 16:32

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