High-Resistance Interruption Circuit Breakers

By 30 July 2017

In this method, arc resistance is increased. This method is generally used in DC circuit breakers and low-medium-voltage AC circuit breakers. The increase of arc resistance is caused by elongation of the arc against an arc chute which contains arc-splitting plates.

The arc is driven outwards using a combination of contact profile, air movement and in some cases by a magnetic blow out device.