Breaker Arc Model

Updated August 26, 2019

This breaker arc model is based on Mayr and Cassie Equation. It shows the variation of breaker arc resistance during current  interruption.

Three factors have impact on the arc resistance:
1. the injected power by the system.
2. the cooling power.
3. the arc time constant

1.L. van derSluis, Transients in Power Systems, John Wiley & Sons, 2001.
2. Shavemaker, Peter., Lou van de Sluis, "An Improved Mayr-Type Arc Model Based on Current-Zero Measurements", IEEE Transactions on Power Delivery, Vol. 15, No 2, April 2000