Automatic tripping of circuit breaker often, this is why, what to do?
After analyzing the two causes of circuit breaker tripping, some common analysis and treatment methods are summarized. The first is to judge whether it is a circuit problem or a circuit breaker problem. The general process is:Observe whether the burning of a circuit, whether there is odor, the low voltage cabinet within the two control loop whether there is no fault1., when there is a fault point, the switch can be closed, the line problem is explained, and the circuit breaker is irrelevant.2. there is no obvious fault point, in the case of no load, the circuit breaker still can not switch on, it shows that the circuit breaker can not be put into operation, it is the problem of the circuit breaker itself.
Second reason is the load, cite a simple example, if the current line is 200A, and the frame current circuit breaker 100A, access motor, the normal line, but for the circuit breaker has obvious overload, it will cause the circuit breaker has been tripping. As for load tripping, the most common is that in our daily life, the current leakage caused by excessive current (such as DZ47le-32 leakage circuit breaker) tripped. Generally speaking, tripping due to load should not occur, and the parameters such as rated current of the line should be known when the model is selected. Here is also added a little knowledge: if the circuit breaker in the starting instant trip occurs, is caused by short-circuit. In the start process, tripping is caused by overload.
Generally speaking, there are two main causes of circuit breaker tripping. The first is short circuit. Similar conditions occur in a humid environment. Remember a customer reflects a DW16-2500 universal circuit breaker, sunny normal, rainy days often trip, that is caused by short-circuit. The final check is due to the short circuit of the control circuit, resulting in two line burn, resulting in tripping.
