Phase ac motor capacitor after the start and use?

The rotation of the single phase ac motor principle Only a single phase ac motor winding,is squirrel cage rotor.When a single-phase sinusoidal current in the stator winding,the motor can produce an alternating magnetic field,The magnetic field strength and direction of interplanting sine law of change at any time,but on the spatial orientation is fixed,so the magnetic field is also called alternation pulse magnetic field.The pay Variable pulse magnetic field can be decomposed into two at the same speed and direction of rotation are instead of a rotating magnetic field,when the rotor static,the two two rotating magnetic field in the rotor An equal and opposite torque,making synthetic torque is zero,so the motor can't rotate.When we use the motor rotates in the direction of a force (clockwise),then the rotation of the rotor and clockwise direction magnetic field between the cutting lines of magnetic force movement decreases; Rotor and the spin counterclockwise direction Turn the cutting lines of magnetic force between field.This balance is broken,the total electromagnetic torque generated by the rotor will no longer be zero,the rotor will spin down driving direction Turn up.To make single-phase acmotortrading.blogspot.com electric function automatically spin,we can add a starter in the stator winding,starting with the main windings in space by 90

degrees,starting Winding to concatenate a suitable capacitance,makes differ with on the phase of

wholesalemotor.blogspot.com the primary winding current approximate 90 degrees,the

so-called split-phase principle.These two are on time 90 degrees of electricity flow into

motor lamination the two differ 90 degrees of winding on the space,will be produced

in the space (two-phase) rotating magnetic field,under the effect of the rotating magnetic field,the rotor is Can automatic starting,after the start,to speed up certain,with the aid of an installed on the rotor of the centrifugal switch or other automatic control device will start winding

disconnect,The only main winding work in normal working conditions.Therefore,starting winding can

make short work.But there are a lot of time,starting winding is not broken,we induction

motor refer to this Single-phase motor,motor for capacitive's turn to change this motor,can be achieved by changing the position of the capacitor is concatenated.