Arc Splitter In Circuit Breaker

The thing that you are asking is known as arc chute.

Arc splitter in circuit breaker.

Acb for example a miniature circuit breaker mcb. The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour. 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. 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.

Hence this arrangement achieves the arc extinction. The splitters increase the length of the arc even further. Air blast circuit breaker may be a single blast or double blast. 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.

Electric arc produces heat that can melt the contacts of the breaker and even damage the circuit breaker itself. The conduction of electric charges through gas produces plasma which glows. 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. An electric arc is the discharge of electric current through gas or air.

By using a patent pending magnetic flux boosting terminal configuration a strong magnetic field is created. The air blast circuit breakers according to the type of flow of blast of compressed around the contacts are of three types namely axial radial and cross blast. In order to avoid that the arc has to be safely and effectively extinguished. A common arc control scheme used in many circuit breaker designs i e.

A typical arc baffle structure in a small circuit breaker is shown in figure 5 9. 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. The distributions of temperature and.

Types of miniature circuit breakers mcb s. 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.