Study on the Arc Quenching Process in Gas Circuit Breakers

A computational approach was developed to analyze the arc quenching process in the GCB. This approach, which takes into account all spaces related to the arc quenching, is capable of calculating the thermodynamic quantities of the gas as a function of time. Based on the so-called FLIC method, this program adopts a modification of the ´simplified enthalpy arc model´. Moreover, to assure the effectiveness of our program, the entire arc quenching process, which is based on the self-flow generation phenomena/current interruption, was reproduced using a thermal expansion type circuit breaker. This program, which was verified through experiments, produced good results