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Breaker trip reason

Escrito por elcbs 16-04-2018 en miniature circuit-breaker. Comentarios (0)

There are three reasons why a Miniature Circuit breaker trips at home. The first is overload, the second is short circuit, and the third is leakage.

The first is that overloading means that too many high-power electrical appliances are used at the same time to exceed the rated current of the Miniature Circuit breaker. It is estimated that you will not calculate, and then you should try to open a few more.

Second, the short circuit may be a short circuit of an electrical appliance, it may also be a short circuit of the dark appliance wire, without any electrical equipment to try if you also jump to consider the circuit is short circuit, of course, if it is a switch with leakage protection, there may be leakage of electricity .

The third kind, if it is a switch with leakage protection, the line or appliance will trip with a little leakage, generally 30mA.

If this is the first case, you should open a little less electrical equipment. A larger circuit breaker can also be used, provided that your line cannot be too thin and it should be larger than the rated capacity of the circuit breaker.

If it is the second case, there is a short circuit inside an appliance. It is OK to repair this appliance. If you are short-circuited, you must ask the professional to check it out.

RCD Residual current devices

principle

Its core wraps around all current-carrying conductors of an electrical circuit. The magnetic flux generated in the core is related to the arithmetic sum of these conductor currents in a moment; the current flowing in one direction is assumed to be positive (I1), The current flowing in the opposite direction is negative (I2).

In the normal loop without fault, I1 + I2 = 0, there is no magnetic flux in the core, and the electromotive force in the coil is zero. The ground fault current Id flows through the core to the point of failure but returns to the power via the earth or via the protection line of the TN system.

The current through the conductors of the magnetic core is therefore no longer balanced and the current difference creates magnetic flux in the magnetic core.

This current is called the "residual" current and this principle is also considered as the "residual current" principle.

The varying magnetic flux generated in the magnetic core induces an electromotive force in the winding, so that the current I3 flows through the coil that operates the trip unit. If the residual current is greater than the value of the current that can cause the trip unit to act, whether it is direct action or via the electronic, relay action, the circuit breaker will have to trip.


How to control the circuit of the household and similar use?

Escrito por elcbs 02-04-2018 en miniature circuit-breaker. Comentarios (0)

These days, almost every home, hotel, and office building uses a consumer unit switch box. Considering that it is the center of the wring system, this is where all electricity in every building is controlled and distributed. With the increasing rate of building fires triggered by faulty consumer units, it is necessary to ensure that you choose the right brand. At TONGOU, we do not compromise on safety. Our products go through several rounds of testing and qualifications, so that you can be rest assured.

Our consumer units contain the Miniature Circuit Breaker, popularly known as MCBs, and the Residual Current Devices or RCDs. Both have gone through and passed several quality assurance tests, from manufacturing to installation.

The MCB is an automatic electromagnetic device that automatically turns off a circuit when it detects a current higher than the stipulated value. Its job is to protect your house from dangerous effects of electrical malfunctioning. The MCB is similar in size and function to a regular fuse, but the MCB is proven to provide more real-time protection. When the MCB trips due to an extremely high current, you can always switch it back on manually as it comes with an easy-to-use and flexible switch, unlike fuses that have to be replaced each time.

The RCD, also known as the Residual Current Circuit Breaker, or RCCB automatically cuts off electricity from a circuit in the event of an electric shock. It also works in case of a fire outbreak, shutting off electricity that could make matters worse. RCDs are designed to provide personal protection, something that MCBs are not made to do. For instance, if you accidentally touch a live wire, the RCD is automatically tripped to prevent further damage or injury. Each RCD within your consumer unit consistently monitors electric current flowing through one or more circuits it is attached to. Immediately it detects electricity flowing down a strange path, it triggers a response to switch off the affected circuits.

Our consumer units are designed in such a way as to ensure maximum safety and ease of installation. The box itself is designed to aid smooth wiring and installation of all the components, such as the MCBs and RCDs, and complementing wires. The busbar is creatively designed to ensure that the devices cannot be incorrectly installed. The entire process can be figured out without any trouble.

Our Consumer Units measure up to our production hallmarks of novel design, excellent workmanship and reliable quality.

Like every product we’ve made, they come with standard approval from CE, SEMKO, CB, CCC and ISO9001 quality system certificate, amongst others. With over 20 years of manufacturing the best electrical devices, we sure know what we’re talking about.

Protect your life, and your building, from electrical dangers today. Buy TONGOU.

TONGOU… For 100% assurance of electrical safety.