Arc Splitter In Circuit Breaker

A common arc control scheme used in many circuit breaker designs i e.

Arc splitter in circuit breaker.

The splitters increase the length of the arc even further. The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour. The thing that you are asking is known as arc chute. A typical arc baffle structure in a small circuit breaker is shown in figure 5 9.

A method used to increase the total arc voltage across the main contacts is to force the arc into an arc baffle or splitter structure. Types of miniature circuit breakers mcb s. Electric arc produces heat that can melt the contacts of the breaker and even damage the circuit breaker itself. Here is the image of the arc chute.

Axial blast air circuit breaker in the air blast circuit breaker the flow of air is longitudinal along the arc. By using a patent pending magnetic flux boosting terminal configuration a strong magnetic field is created. Circuit breaker which features a unique and innovative patent pending arc quenching configuration that allows the breaker to safely handle high amperage and high dc voltage applications in a compact package. Air blast circuit breaker may be a single blast or double blast.

An arc fault circuit interrupter or afci breaker prevents fires by sensing when an electrical arc is about to occur and instantly disconnecting the damaged circuit before the arc builds enough heat to catch fire standard circuit breakers don t always trip in these instances because standard breakers are designed to respond to a sustained amount of heat not a quick surge. When the current is greater than 100a these gases get dissociated into atoms which changes the characteristics of the arc on account of the associated change in its thermal conductivity. Arc chute is used in low voltage circuit breakers or in air circuit breakers i e. Hence this arrangement achieves the arc extinction.

A 3 d simulation model of air arc plasma in a low voltage circuit breaker considering the production of iron vapor from splitter plate erosion is developed. These arc splitter plates are also called arc chutes where arc is formed into a series of arcs and at the same time energy extracted and cools it. The distributions of temperature and. Acb for example a miniature circuit breaker mcb.

The arc chute actually lo. In order to avoid that the arc has to be safely and effectively extinguished.