0769-82730118
CH
NEWS
contact us

National consultation hotline

0769-82730118

Industry Dynamics

Current Position:Home > NEWS > Industry Dynamics

Single-phase motor capacitors

Time:2020-04-15 03:04Source:Tension

  Single-phase capacitor motors use only one capacitor, which is called the "working capacitor." Whether it is starting or operating normally, it always starts both ends of the winding and running winding coils. The motor of this structure is designed to use the capacitor and starting winding of the single-phase split-phase motor for a long time in the circuit. In fact, it becomes a two-phase asynchronous motor, its running performance, power factor, overload capacity and The efficiency is better than the capacitor split phase type. Since the capacitor does not need to be cut from the circuit during the operation of the motor, it does not require a centrifugal switch.

  This single-phase motor is very simple to change the speed direction, just need to adjust the two outlet ends of one of the two windings. Single-phase split-phase motors require two capacitors to start and run; one capacitor is the starting capacitor and the other is the running capacitor; the single-phase split-phase motor has a running winding and a starting winding embedded in the stator, and the two windings differ by 90 on the stator Degrees of electricity, and they are all connected to the same single-phase power supply.

  由于单相电源无法产生相位差,因此它必须利用电容的超前90度的特性来给电动机一个启动力矩,产生旋转磁场;当启动后转子转速达到电机额定转速的70%~80%时,电动机内部安装的一个离心开关会自动将启动电容分离出启动绕组,其由运行绕组与运行电容继续维持正常运转。这种分相电动机颠倒两组线圈的任意一组的两个线端就可以改变运转方向。