ABB接触器吸合不正常

Abnormal closing of ABB contactor

ABB接触器吸合异常是指ABB接触器吸合过慢，触点不能完全闭合，铁芯发出异响等异常现象。原因及解决方法如下：

Abnormal closing of ABB contactor refers to abnormal phenomena such as slow closing of ABB contactor, incomplete closing of contacts, abnormal sound of iron core, etc. The causes and solutions are as follows:

1）由于控制回路的供电电压低于额定电压的85%，电磁线圈通电后产生的电磁力很小，动铁芯不能快速吸附到静铁芯上，导致接触器拉缓慢或拉不紧。控制回路的电源电压应调整到额定工作电压。

1) As the power supply voltage of the control circuit is lower than 85% of the rated voltage, the electromagnetic force generated after the electromagnetic coil is powered on is very small, and the moving iron core can not be quickly adsorbed to the static iron core, resulting in slow or loose pulling of the contactor. The power supply voltage of the control circuit shall be adjusted to the rated working voltage.

2）弹簧压力不足导致接触器吸合异常；弹簧反作用力过大，导致拉入缓慢；接触弹簧压力过大，使铁芯不能完全闭合；触点的弹簧压力和释放压力过大，触点不能完全闭合。解决方法是适当调整弹簧压力，必要时更换弹簧。

2) Insufficient spring pressure leads to abnormal contactor closing; The spring reaction force is too large, resulting in slow pulling in; The contact spring pressure is too large, so that the iron core cannot be completely closed; The spring pressure and release pressure of the contact are too large, and the contact cannot be fully closed. The solution is to properly adjust the spring pressure and replace the spring if necessary.

3）因动、静铁芯间隙过大，活动部分卡死，转轴生锈或变形，导致接触器吸合异常。加工时可将动、静铁芯拆下检查，调整间隙，清洗转轴和转轴。支撑杆，必要时更换附件。

3) Due to the large gap between the dynamic and static iron cores, the movable part is stuck, and the rotating shaft is rusted or deformed, resulting in abnormal contactor closing. During processing, the dynamic and static iron cores can be removed for inspection, the clearance can be adjusted, and the rotating shaft and shaft can be cleaned. Support rod, replace accessories if necessary.

4）ABB接触器代理提醒，由于长期频繁碰撞，铁芯板面不平整，沿叠片厚度方向向外膨胀。这时可用锉刀修整，必要时可更换铁芯。

4) ABB contactor agent reminded that due to long-term frequent collision, the iron core plate surface was uneven and expanded outward along the lamination thickness. At this time, the file can be used for trimming, and the iron core can be replaced if necessary.

5）短路环断，造成铁芯发出异响。在这种情况下，应更换为吸不吸或放不开的相同尺寸的短吸。吸不上力或吸力不足的原因不仅是机械故障，还有电源电压过低、内阻过大、线圈断线等是造成此故障的主要原因。不释放或释放缓慢的原因是触点弹簧失去弹性或弹性太大，触点复位力不足，触点焊接，铁芯极面或导槽有污垢铁芯、铁芯闭合时的退磁气隙减小等。

5) The short-circuit ring is broken, causing abnormal sound from the iron core. In this case, it shall be replaced with a short suction pipe of the same size that cannot be sucked or put away. The reason for the failure or insufficient suction is not only mechanical failure, but also low power supply voltage, excessive internal resistance, coil disconnection, etc. The reasons for non release or slow release are that the contact spring loses elasticity or is too elastic, the contact reset force is insufficient, the contact is welded, the iron core pole surface or guide groove has dirt, the iron core, the demagnetization air gap when the iron core is closed, etc.

ABB接触器触头接触不牢靠

ABB contactor contact is not reliable

接触器的触头接触不足会增加动、静触头之间的接触电阻，导致接触面温度过高，使面接触变为点接触，甚不导电。此失败的原因如下：

Insufficient contact of the contactor will increase the contact resistance between the dynamic and static contacts, resulting in high temperature of the contact surface, making the surface contact into point contact, or even non-conductive. The reason for this failure is as follows:

1)触点上有油渍、花朵和异物。可用蘸有酒精或汽油的棉布擦拭。

1) There are oil stains, flowers and foreign matters on the contacts. Wipe with cotton cloth dipped in alcohol or gasoline.

2)长期使用，接触面被氧化。如果是银或银基合金触头，在触头表面形成氧化层或在电弧作用下出现轻微烧伤和发黑不影响工作，可用酒精擦洗、汽油或四氯化碳溶液；表面烧焦不均匀，只能用细锉去除其周围的飞溅物或毛刺。不要归档太多以免影响联系人的寿命。

2) After long-term use, the contact surface is oxidized. In case of silver or silver base alloy contact, the formation of oxide layer on the contact surface or slight burn and blackening under the action of electric arc will not affect the work. It can be scrubbed with alcohol, gasoline or carbon tetrachloride solution; If the surface is not burnt evenly, only use a fine file to remove the splashes or burrs around it. Don't archive too much to avoid affecting the life of contacts.

3）ABB接触器代理人员认为，电弧烧蚀造成缺陷、毛刺或形成金属屑颗粒等。对于铜触点，如果烧伤程度较轻，可以用细锉修复不平整，但不允许使用细锉。用砂布打磨，避免石英砂颗粒残留在触点之间，无法保持良好的接触；如果烧伤严重且接触面低，则必须更换新的触点。

3) ABB contactor agent believed that arc ablation caused defects, burrs or formation of metal chip particles. For copper contacts, if the burn degree is light, a fine file can be used to repair the unevenness, but it is not allowed to use a fine file. Polish with abrasive cloth to avoid quartz sand particles remaining between the contacts, which can not maintain good contact; If the burn is severe and the contact surface is low, the contact must be replaced with a new one.

4)运动部分受阻。拆卸、检查卡住的部件并进行相应的处理。

4) Movement is partially blocked. Disassemble and check the stuck parts and handle them accordingly.

ABB接触器吸合以及触头接触问题原因就是这样了，如果您想长久且顺利的使用下去，就要对该产品的内容做充足了解，预防好问题的出现。更多信息就来关注网站www.jntongyu.com获取！

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