Abstract
In this paper, an arc runner model is developed to study behaviors of the arc motion for different current levels and resistance of arc runners. By using high speed CCD camera the arc movements are observed and the influence of resistor of arc runners is analyzed. According to experiment results of the arc motion between parallel poles, for the certain configuration the increase of the pole resistance can reduce the speed of arc motion. However, with the increase of the current, this effect fades gradually. A simplified mathematical model is proposed to explain the reason for the resistance of the arc runner delays arc motion. Without considering the fluid characteristic of the arc, further work may be done to analyze the phenomena that with the higher current, the arc delay effect of resistance fades.
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