In all industrial equipment, contactors may not be familiar to you, but they are widely used in our daily life. In electrical engineering, contactors can be innovatively applied in various occasions because they are closely related to the guidance and use of current. When necessary, they also play the role of low voltage release protection. Today, Xiaobian will introduce the working principle of this machine and contactor. What is the function of contactor? If you are interested, follow Xiaobian!

接触器的工作原理?

How does the contactor work?

接触器的工作原理,当线圈通电时，静铁芯产生电磁吸力，使得动铁芯被吸合，进而带动触头系统的三条动触片发生动作，主触点闭合，辅助常闭触点断开，辅助常开触点闭合，接通电源。

The working principle of the contactor: when the coil is energized, the static iron core generates electromagnetic suction, which makes the moving iron core be pulled in, and then drives the three moving contacts of the contact system to act. The main contact is closed, the auxiliary normally closed contact is opened, and the auxiliary normally open contact is closed to connect the power supply.

接触器的工作原理,当线圈断电时，静铁芯的电磁吸力消失，弹簧的反作用力使得动铁芯与静铁芯分离，触头系统的三条动触片动作，使得主触头断开，辅助常闭触点闭合，辅助常开触点断开，切断电源。

The working principle of the contactor: when the coil is powered off, the electromagnetic attraction of the static iron core disappears, the reaction force of the spring separates the dynamic iron core from the static iron core, and the three moving contacts of the contact system act to disconnect the main contact, close the auxiliary normally closed contact, disconnect the auxiliary normally open contact and cut off the power supply.

接触器的作用是什么?

What is the function of contactor?

接触器的作用是什么?接触器的作用就是用小电流来控制大电流负载，可以远距离控制，同时可以自锁互锁，防止误动作造成事故，由于是小电流控制，使得保护电路简单可靠。

What is the function of contactor? The function of contactor is to use small current to control large current load, which can be controlled remotely and self-locking and interlocking to prevent accidents caused by misoperation. Due to small current control, the protection circuit is simple and reliable.

接触器分为交流接触器(电压AC)和直流接触器(电压DC)，它应用于电力、配电与用电。接触器广义上是指工业电中利用线圈流过电流产生磁场，使触头闭合，以达到控制负载的电器。

Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, power distribution and power consumption. Broadly speaking, contactor refers to an electrical appliance that uses the current flowing through the coil to generate a magnetic field to close the contact in order to control the load.