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!

接觸器的工作原理?

How does the contactor work?

接觸器的工作原理,當線圈通電時，靜鐵芯產生電磁吸力，使得動鐵芯被吸合，進而帶動觸頭系統的三條動觸片發生動作，主觸點閉合，輔助常閉觸點斷開，輔助常開觸點閉合，接通電源。

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.

接觸器的工作原理,當線圈斷電時，靜鐵芯的電磁吸力消失，彈簧的反作用力使得動鐵芯與靜鐵芯分離，觸頭系統的三條動觸片動作，使得主觸頭斷開，輔助常閉觸點閉合，輔助常開觸點斷開，切斷電源。

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.

接觸器的作用是什么?

What is the function of contactor?

接觸器的作用是什么?接觸器的作用就是用小電流來控制大電流負載，可以遠距離控制，同時可以自鎖互鎖，防止誤動作造成事故，由于是小電流控制，使得保護電路簡單可靠。

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.

接觸器分為交流接觸器(電壓AC)和直流接觸器(電壓DC)，它應用于電力、配電與用電。接觸器廣義上是指工業電中利用線圈流過電流產生磁場，使觸頭閉合，以達到控制負載的電器。

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.