Arc Splitter In Circuit Breaker

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Arc splitter in circuit breaker.

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. Here is the image of the arc chute. Air blast circuit breaker may be a single blast or double blast.

The conduction of electric charges through gas produces plasma which glows. Axial blast air circuit breaker in the air blast circuit breaker the flow of air is longitudinal along the arc. 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.

Types of miniature circuit breakers mcb s. Hence this arrangement achieves the arc extinction. 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. Arc chute is used in low voltage circuit breakers or in air circuit breakers i e.

A common arc control scheme used in many circuit breaker designs i e. The arc chute actually lo. In order to avoid that the arc has to be safely and effectively extinguished. Electric arc produces heat that can melt the contacts of the breaker and even damage the circuit breaker itself.

An electric arc is the discharge of electric current through gas or air. Acb for example a miniature circuit breaker mcb. 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. A typical arc baffle structure in a small circuit breaker is shown in figure 5 9.

The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour. By using a patent pending magnetic flux boosting terminal configuration a strong magnetic field is created.