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What Is The Cause Of The Old Circuit Breaker Trip
Oct 26, 2017

The circuit breaker trips, some people feel very troublesome, but I advise you not to think so, because every trip of the circuit breaker means all the life of the appliance or the life of the user. If it is an occasional trip, it may be malfunction or environmental impact of the circuit breaker, but if you frequent tripping, you have to pay attention. After all, we can not put our lives on the circuit breaker.

Circuit breaker trip, no less than the following five reasons, combined with the actual situation to judge, you can understand, find, solve the problem. Note: When servicing the circuit, be sure to ensure that the upper circuit breaker is disconnected.

Cause one: overload

Overload protection, is a basic function of the circuit breaker, any circuit breaker, have this feature.

Overload protection, refers to the current in the circuit, exceeds the value of the circuit breaker. For example, the circuit breaker is set at 16A and the actual current in the circuit is 17A, and the circuit breaker is automatically tripped.

This is how the 16A election out of it? This is based on the socket, wire, electrical appliances and other circuit breakers to protect the object can withstand the maximum current decision.

Not attached to the circuit breaker, can be determined to be circuit overload; add the attachment of the circuit breaker, to observe whether the attachment has changed, if the attachment does not change, it is also due to circuit overload.

The reason for the circuit overload is that the total power of the appliance used in the circuit is too large. At this point, as long as the high-power appliances to remove the circuit, or reduce the number of electrical appliances, and then closing can be.

Reason two: short circuit

Broadly speaking, short circuit is an extreme phenomenon of overload.

Short circuit refers to the zero line of fire, not through the electrical appliances, direct contact with the together. At this point, will produce a huge current (infinity), this current, not only can instantly burn the electrical appliances, electric death is also a minute thing.

Therefore, if this happens, be sure to keep the circuit breaker disconnected until the fault is resolved.

So how can you be sure of this problem? If the electrical plug is burned black, the socket is burned or sparked, or unplug all the plugs, the circuit breaker is still tripping, you can conclude that there is a short circuit fault in the circuit.

Cause three: leakage

At this point to talk about the most commonly used circuit breaker accessories - leakage protector. This accessory, with leakage protection function, that is, when the circuit leakage phenomenon occurs, the circuit breaker will automatically trip.

Plus the annex of the circuit breaker, will also have the function of the circuit breaker and accessories it. So, how to judge the circuit breaker is due to overload trip or due to leakage trip it?

At this point depends on the state of the annex. The most common kind of attachment, the attachment has a "reset button", the button next to the text marked. This button, in normal circumstances, with the circuit breaker shell in the same plane, but once the circuit leakage occurs, the button will be highlighted. Moreover, the direct closing is fixed, and only press the button, to re-closing.

If this happens after tripping, it is proven that there is a leakage fault in the circuit, otherwise other faults are considered.

Cause four: undervoltage

In addition to the common leakage protector accessories, there is an attachment called "undervoltage release", as the name implies, that is, when the voltage is too low, the automatic trip.

This attachment, generally installed in the voltage instability of the place, is to prevent electrical appliances in low voltage conditions, overload operation, so as not to burn electrical appliances. But with this thing there is a trouble, that is, a power trip on the trip.

In the undervoltage release attachment, there will be a reset button and the same as the leakage protector, when the button protrudes after the trip, then there is no voltage fault in the circuit.

At this point, as long as waiting for voltage stability, the direct closing can be.

Cause five: overvoltage

In addition to undervoltage release, there is a called "overvoltage release", a more function, that is, when the voltage is too high, the circuit breaker is still tripping.

When the overvoltage release is tripped, the reset button is also present. However, this time can not be seen, because the voltage is too high trip or voltage is too low trip, but can certainly be due to voltage instability.

At this point, the same is waiting for voltage stability, the direct closing can be.