torque of synchronous motor with out feild exitation
Reluctance torque is the torque generated in a reluctance motor due to the tendency of the rotor to align itself with the stator magnetic field. It occurs as a result of the variation in reluctance in the magnetic path between the rotor and stator. This torque is responsible for the motion of the motor and is one of the main torque components in reluctance motor operation.
shaded pole
Relatively unprovenNoisyNot-well suited for smooth torque production
"Reluctance" is a noun.
Reluctance.
Reluctance is the opposition offered by a magnetic circuit to the formation of magnetic flux. The symbol for reluctance is R or Rm. Reluctance is measured in amperes per weber (A/Wb). Reluctance is equivalent to resistance in an electric circuit.
Reluctant is the adjective form of reluctance.
We need to overcome this reluctance to talk openly.
reluctant
The verb form of reluctance is "reluct."
Advantage: Synchronous reluctance motors are simple in design, cost-effective, and have high efficiency due to the absence of rotor windings and permanent magnets. They offer good performance at high speeds and low to medium power ratings. Disadvantage: Synchronous reluctance motors have lower torque density compared to permanent magnet motors, which can limit their use in high-torque applications. They may also have a limited speed range and require a motor control system to operate efficiently.
In a transformer, or on general, if a material is easily magnetized it has low reluctance.