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              您所在的位置:首頁-新聞中心-新聞動態-ABB接觸器代理來分析交流接觸器的工作原理

              ABB接觸器代理來分析交流接觸器的工作原理

              來源:http://www.cekidots.com/ 日期:2021-04-26 發布人:tongjid

              當線圈通電時,靜鐵芯產生電磁吸力,將動鐵芯吸合,由于觸頭系統是與動鐵芯聯動的,因此動鐵芯帶動三條動觸片同時動作,主觸點閉合,和主觸點機械相連的輔助常閉觸點斷開,輔助常開觸點閉合,從而接通電源。當線圈斷電時,吸力消失,動鐵芯聯動部分依靠彈簧的反作用力而分離,使主觸頭斷開,和主觸點機械相連的輔助常閉觸點閉合,輔助常開觸點斷開,從而切斷電源。

              When the coil is electrified, the static iron core generates electromagnetic force to pull in the moving iron core. Because the contact system is linked with the moving iron core, the moving iron core drives three moving contacts to act at the same time, the main contact is closed, the auxiliary normally closed contact mechanically connected with the main contact is opened, and the auxiliary normally open contact is closed, so as to turn on the power supply. When the coil is powered off, the suction disappears, and the linkage part of the moving iron core is separated by the reaction force of the spring, so that the main contact is disconnected, the auxiliary normally closed contact mechanically connected with the main contact is closed, and the auxiliary normally open contact is disconnected, so as to cut off the power supply.
              一:一般三相接觸器一共有8個點,三路輸入,三路輸出,還有是控制點兩個。輸出和輸入是對應的,很容易能看出來。如果要加自鎖的話,則還需要從輸出點的一個端子將線接到控制點上面。
              1: General three-phase contactor has a total of 8 points, three input, three output, there are two control points. The output corresponds to the input, which is easy to see. If you want to add self-locking, you also need to connect the line to the control point from a terminal of the output point.
              二:首先應該知道交流接觸器的原理。他是用外界電源來加在線圈上,產生電磁場。加電吸合,斷電后接觸點就斷開。知道原理后,你應該弄清楚外加電源的接點,也就是線圈的兩個接點,一般在接觸器的下部,并且各在一邊。其他的幾路輸入和輸出一般在上部,一看就知道。還要注意外加電源的電壓是多少(220V或380V),一般都標得有。并且注意接觸點是常閉還是常開。如果有自鎖控制,根據原理理一下線路就可以了。
              2: First of all, we should know the principle of AC contactor. He uses an external power source to add to the coil to generate electromagnetic fields. The contact point will be disconnected after power on and power off. After knowing the principle, you should find out the contact of the external power supply, that is, the two contacts of the coil, which are generally at the lower part of the contactor and on each side. The other several input and output channels are generally on the top, which can be seen at a glance. Also pay attention to the external power supply voltage is how much (220 V or 380 V), generally marked with. And pay attention to whether the contact point is normally closed or normally open. If there is self-locking control, according to the principle of the line can be.
              交流接觸器的承載電流很大,一般是內部的吸合線圈來控制它的動作與否,而控制線圈又由與它串接的各種類型的繼電器來操作,打雷之后會跳閘的是因為交流接觸器的繼電器帶有過流或接地保護功能,當線路上落有雷電,它會控制交流接觸器動作,切斷負荷電源,來保護設備,以免被高電壓,大電流損壞或是接地發生安全危險
              The bearing current of AC contactor is very large. Generally, the internal pull-in coil controls its action, and the control coil is operated by various types of relays connected in series with it. After thunder, the relay of AC contactor will trip because it has over-current or grounding protection function. When there is lightning on the line, it will control the action of AC contactor and cut off the load power, To protect the equipment from being damaged by high voltage, high current or grounding
              交流接觸器廣泛用作電力的開斷和控制電路。交流接觸器利用主接點來開閉電路,用輔助接點來執行控制指令。主接點一般只有常開接點,而輔助接點常有兩對具有常開和常閉功能的接點,小型的接觸器也經常作為中間繼電器配合主電路使用。從而起到遠程控制或弱電控制強電的功能.
              AC contactor is widely used as power breaking and control circuit. AC contactor uses main contact to open and close circuit, and auxiliary contact to execute control command. The main contact usually has only normally open contact, while the auxiliary contact often has two pairs of normally open and normally closed contacts. Small contactors are often used as intermediate relays to cooperate with the main circuit. So as to play the function of remote control or weak current control strong current


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