Starting principle of capacitor less single-phase motor
All single-phase motors are not self - starting, that is, there is no starting torque. If the magnetic field of the pole has a rotational nature, the motor will start on its own as a three-phase motor and reach a normal speed. Therefore, any single-phase AC motor must have its own special structure to convert a magnetic field without rotation into a rotating property.
No capacitor single-phase motor is divided into pole and split type, and split phase is subdivided into two types: centrifugal switch, start type and differential relay. Take the cover type as an example.
Cover type starting principle: a cogging type stator similar to a three-phase motor is used, the windings are distributed, and a few self winding short circuit coils with coarse copper wires are embedded at the same time in some slots. Shaded pole coil is the role of the original one without rotating magnetic field into a character in polar never move to cover part of the continuous part of the quilt which has properties of rotating magnetic field, and the steering is not any change.
The first floor is not correct. Three outgoing single-phase motors are required to start with attachments, capacitors or resistors
