Arc Splitter In Circuit Breaker

Acb for example a miniature circuit breaker mcb.

Arc splitter in circuit breaker.

Hence this arrangement achieves the arc extinction. The arc chute actually lo. By using a patent pending magnetic flux boosting terminal configuration a strong magnetic field is created. A typical arc baffle structure in a small circuit breaker is shown in figure 5 9.

A common arc control scheme used in many circuit breaker designs i e. The conduction of electric charges through gas produces plasma which glows. 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.

The splitters increase the length of the arc even further. In order to avoid that the arc has to be safely and effectively extinguished. Here is the image of the arc chute. 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.

Arc chute is used in low voltage circuit breakers or in air circuit breakers i e. 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 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. 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. The distributions of temperature and. Electric arc produces heat that can melt the contacts of the breaker and even damage the circuit breaker itself. Air blast circuit breaker may be a single blast or double blast.

Axial blast air circuit breaker in the air blast circuit breaker the flow of air is longitudinal along the arc. The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour.