对于断路器、接触器、继电器三个机器，很多人实际上并不是很能分开，不过没关系，今天我们就从三者的“毛病”讲起，让大家对其更多的了解。

　　For circuit breaker, contactor, relay three machines, a lot of people are actually not very can separate, but it doesn't matter, today we will start from the three "fault", let you know more about it.

　　断路器有什么毛病？

　　触点过热，能闻到配电控制柜的味道。经检查，动触头未完全插入静触头，接触压力不够，导致切换能力下降，触头过热。此时应调整操作机构，使动触头完全插入静触头。检修该故障时，一定要注意，严防电弧对人和设备的危害。对负载和触点进行检修后，与负载一起检查运行情况，直正常。此故障须注意设备的日常维护，以免造成不必要的伤害。

　　What's wrong with the circuit breaker?

　　Contact's overheated. I can smell the power distribution control cabinet. After inspection, the moving contact is not fully inserted into the static contact, the contact pressure is not enough, resulting in the decrease of switching ability, contact overheating. At this point, the operating mechanism should be adjusted so that the moving contact is fully inserted into the static contact. When repairing the fault, we must pay attention to safety and prevent the harm of electric arc to people and equipment. After inspecting the load and contact, check the operation with the load until normal. This fault must pay attention to the daily maintenance of equipment, so as not to cause unnecessary damage.

　　接触器有什么毛病？

　　接触断相，由于某相的接触接触不良或端子上的螺丝松动，使电机无相运行。这时，电机虽然可以转动，但会发出嗡嗡声。应立即停止维修。触点焊接，“停止”按钮连接，电机不转，可能有嗡嗡声。这种故障是由于大的过载电流造成两相或三相触点的熔接现象。应立即切断电源，检查负载后更换接触器。如果检查通电后没有振动和噪音，说明衔铁的运动部分被卡住了，只是线圈断路的故障。

　　What's wrong with the contactor?

　　Contact disconnection, due to the bad contact of a phase or loose screw on the terminal, so that the motor does not run phase. At this time, although the motor can turn, but will emit a buzz. Maintenance should be stopped immediately. Contact welding, "stop" button connection, motor does not turn, there may be a buzzing sound. This failure is due to a large overload current resulting in two - phase or three - phase contact fusion phenomenon. Cut off the power supply immediately, check the load and replace the contactor. If there is no vibration and noise after checking the power, it means that the moving part of the armature is stuck, just the fault of the coil break.

　　继电器有什么毛病？

　　热功率当量元件烧毁。如果电机无法启动或启动时有嗡嗡声，则可能是热继电器热敏元件中的保险丝熔断。出现此类故障的原因是热继电器动作过于频繁，或负侧过载。排除故障后，更换相应的热继电器，注意重新调整整定值。热继电器“误”动作。这种故障的原因一般有以下几种：设定值太小，使其动作不过载；工作频率太高，经常影响热敏元件。等等。ABB中间继电器也要多关注关注！

　　What's wrong with the relay?

　　Thermal power equivalent element burns out. If the motor fails to start or there is a buzzing sound when it starts, the fuse in the thermal-sensitive element of the thermal relay may blow. The reason for this kind of failure is that the action of thermal relay is too frequent, or the negative side overload. After troubleshooting, replace the corresponding thermal relay and pay attention to readjust the setting value. Thermal relay "wrong" action. The reasons for this kind of failure are generally as follows: The set value is too small to make the action but load; Working frequency is too high, often affecting the thermal element. And so on.

　　断路器、接触器、继电器会有什么毛病解决？以上便是问题的内容了，如果您在使用过程中还发现有其他的问题出现，可以联系我们www.jntongyu.com分享！

　　What problems can be solved for circuit breaker, contactor and relay? The above is the content of the problem, if you find other problems in the process of use, you can contact us www.jntongyu.com to share!