Reluctance motor

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Answer :

Reluctance motor

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•Reluctance is opposition to magnetic flux.

•Reluctance is analogous to electric resistance.

•Reluctance motor does not have any winding on rotor.

•Rotor consists of notches.

•It can rotate in clockwise and anticlockwise direction .

•Reluctance motor is some what similar to brushed DC motor.

•Poles of reluctance motor is type of non permanent magnet.

•Reluctance motor can deliver a high power density.

•Stator poles of a reluctance motor are more than the rotor poles.

•All the poles of reluctance motor are wound with copper winding.

•We can control it through microcontroller.

•Reluctance motor is use in hard disk drive motor, Tape Recorder, Clock Timer etc.

•The torque which is required for rotation of rotor is generated through magnetic reluctance so it called reluctance motor.

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Related Questions

Description : The maximum reluctance power of a salient-pole synchronous motor having direct-axis reactance, 1.0 pu and quadrature-axis reactance, 0.5 pu, and input voltage, 1.0 pu is (A) 0.25 pu (B) 0.5 pu (C) 1.0 pu (D) 1.5 pu

Answer : The maximum reluctance power of a salient-pole synchronous motor having direct-axis reactance, 1.0 pu and quadrature-axis reactance, 0.5 pu, and input voltage, 1.0 pu is 0.5 pu

Answer : In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will run as induction motor.

Description : Compare variable reluctance and permanent magnet motors.

Answer : Variable reluctance Motor  Permanent magnet motors   The rotor is not magnetised The rotor is magnetised  High torque to inertia ratio  Low torque to inertia ratio  ... rotor has salient pole construction The rotor has mostly smooth cylindrical type of construction. 

Description : THE UNIT OF RELUCTANCE IS

Answer : The si unit of reluctance is Ampere-turn/weber

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