Experimental Investigation of the Interaction of Interrupting Arcs and Gassing Polymer Walls

D. Gonzalez, H. Pursch, F. Berger
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引用次数: 15

Abstract

Gassing polymer walls are used in circuit breakers to improve their interrupting and current limiting performance. The energy of the arc will be partially absorbed by the polymer walls, causing chemical degradation and evaporation. The evaporated gas reaches the arc plasma changing its composition and influencing its burning conditions. The resulting increase on pressure and arc voltage contributes to current limiting and reduction of arcing time. This paper deals with experimental results of the investigation of the interaction between the arc and gassing polymer walls. The simultaneous detection of pressure in the arc chamber, of arc current and voltage and the use of high speed photography and SEM analysis contribute to the characterisation of the influence of the polymer gases on the arc behaviour. The results of the ex-periments are used to verify numerical models.
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中断电弧与气体聚合物壁相互作用的实验研究
气相聚合物壁用于断路器中,以提高断路器的断流和限流性能。电弧的能量将部分被聚合物壁吸收,引起化学降解和蒸发。蒸发的气体到达电弧等离子体,改变其成分,影响其燃烧条件。由此产生的压力和电弧电压的增加有助于限制电流和缩短电弧时间。本文讨论了电弧与气态聚合物壁相互作用研究的实验结果。同时检测电弧室的压力、电弧电流和电压,以及使用高速摄影和扫描电镜分析,有助于描述聚合物气体对电弧行为的影响。实验结果用于验证数值模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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