Another method in a single-phase motor, rotating magnetic field is known as shaded pole method, also known as single-phase shaded pole motors. Such motor stator made salient pole, there are two poles and four poles. Each pole in 1 / 3-1 / 4 full pole face at the opening of a small tank, the pole is divided into two parts, a short circuit on the suit on a small part of the brass ring, as if this part of the pole cover up the same, So called shaded pole motors. Single phase winding over the entire suit poles, each pole of the coils are connected in series, the polarity must be generated sequentially by N, S, N, S arranged at the connection. When the stator windings are energized, the main magnetic flux generated in the magnetic poles, according to Lenz's law, wherein the main magnetic flux passing through the short-circuited copper ring produces a lag 90 degrees in phase induced current in the copper ring, this current generated by the magnetic pass also lags in phase the main magnetic flux, its role and the capacitor type motor start winding considerable, thereby generating a rotating magnetic field of the motor to turn up. For more information, please attention http://www.wddianji.com/