斷路器就是保護人身安 全的，它可以在規定的時間內關合電路，可以在電流一場的時候關閉電路。所以斷路器每次跳閘就意味著它拯救了一次電器的使用壽命，也保護了人們的安 全。

Circuit breaker is to protect personal safety, it can close the circuit in the specified time, can close the circuit in the current field. So each trip of circuit breaker means that it saves the service life of electrical appliances and protects people's safety.

斷路器偶爾跳閘的話可能是斷路器誤動作也可能是環境影響。但是如果經常性的跳閘，就要重視起來了。肯定要以自己的生命安 全為前提。ABB塑殼斷路器代理為大家總結一下斷路器跳閘常見原因,結合實際情況判斷，即可了解、發現、解決故障。

If the circuit breaker trips occasionally, it may be the malfunction of the circuit breaker or the environmental impact. But if frequent trip, we should pay attention to it. We must take our own life safety as the premise. ABB moulded case circuit breaker agent summarizes the common causes of circuit breaker tripping for you. Combining with the actual situation, we can understand, find and solve the fault.

原因一、過載過載保護,是斷路器的一項基本功能,任何斷路器,都有這項功能。過載保護,指的是電路中的電流,超過了斷路器預定的數值。比如,斷路器預定值為16A,而電路中的實際電流為17A,此時,斷路器就會自動跳閘。

First, overload protection is a basic function of circuit breaker. Any circuit breaker has this function. Overload protection means that the current in the circuit exceeds the predetermined value of the circuit breaker. For example, if the preset value of the circuit breaker is 16a and the actual current in the circuit is 17a, the circuit breaker will trip automatically.

原因二、短路短路是指零火線,未經過用電器直接接觸到了一起。此時，會產生巨大電流(無窮大),這種電流,不僅能夠瞬間燒毀用電器,電死電傷用戶也是分分鐘的事。因此,如果出現這種情況，-定要保持斷路器斷開狀態,直至故障被解決。

The second reason is short circuit. Short circuit refers to the zero live wire, which is not directly contacted by electrical appliances. At this time, a huge current (infinite) will be generated, which can not only instantly burn down the electrical appliances, but also electrocute and injure the users every minute. Therefore, if this happens, keep the circuit breaker open until the fault is solved.

原因三、漏電

The third reason is electric leakage

此時要說到斷路器.常用的一種附件一-漏電保護器。這個附件,具有漏電保護功能,即當電路中出現漏電現象時,斷路器就會自動跳閘。

At this time, we have to talk about the circuit breaker. One of the common accessories - leakage protector. This accessory has the function of leakage protection, that is, when leakage occurs in the circuit, the circuit breaker will trip automatically.

原因四、欠壓除了常見的漏電保護器附件以外,還有一種附件,叫做欠電壓脫扣器",顧名思義,就是當電壓過低時,自動跳閘。在欠電壓脫扣器附件上，會有一個和漏電保護器-樣的復位按鈕,當跳閘后該按鈕突出,則證明電路中存在欠壓故障。此時,只要等待電壓穩定后,直接合閘即可。

In addition to the common accessories of leakage protector, there is another kind of accessories called undervoltage release. As the name suggests, it trips automatically when the voltage is too low. On the accessories of undervoltage release, there will be a reset button similar to leakage protector. When the button protrudes after tripping, it proves that there is undervoltage fault in the circuit. At this time, just wait for the voltage to stabilize and switch on directly.

原因五、過壓除了欠壓脫扣器,還有一種叫做"過欠電壓脫扣器”,多了-種功能,即電壓過高時,斷路器依然跳閘。過欠電壓脫扣器跳閘后,同樣會有復位按鈕。但是，此時無法看出,是由于電壓過高跳閘還是電壓過低跳閘,但可以肯定是由于電壓不穩定。

Cause 5: in addition to the undervoltage release, there is also an over-voltage and undervoltage release, which has more than one function, that is, the circuit breaker still trips when the voltage is too high. After the over-voltage and under voltage release trips, there will also be a reset button. However, at this time, it can not be seen whether the trip is due to too high voltage or too low voltage, but it can be sure that the trip is due to voltage instability.