Finally, hysteresis synchronous motors typically are (essentially) two-phase motors with a phase-shifting capacitor for one phase. They start like induction motors, but when slip rate decreases sufficiently, the rotor (a smooth cylinder) becomes temporarily magnetized. Its distributed poles make it act like a PMSM. The rotor material, like that of a common nail, will stay magnetized, but can also be demagnetized with little difficulty. Once running, the rotor poles stay in place; they do not drift. COUNT 5
QSN1 What do hysteresis synchronous motors' rotors do when slip rate decreases? ANS1 becomes temporarily magnetized QSN2 When in operation, what do hysteresis synchronous motors poles do? ANS2 stay in place QSN3 What do hysteresis synchronous motors resemble at startup? ANS3 induction motors QSN4 How can a hysteresis synchronous motor's rotor be described? ANS4 a smooth cylinder QSN5 What do the distributed poles of a hysteresis synchronous motor resemble? ANS5 PMSM