Arc characteristics during the instability stage on transverse magnetic field contacts

被引：0
|
作者：
庞先海 [1 ]
刘紫熹 [2 ]
修士新 [2 ]
冯顶瑜 [2 ]
机构：
[1] State Grid Hebei Electric Power Research Institute
[2] State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong
来源：
Plasma Science and Technology | 2018年 / 09期
关键词：
D O I：
暂无
中图分类号：
TM501.2 [];
学科分类号：
摘要：
The arcing process greatly affects the breaking ability after current zero.The instability stage is the transition stage from the ignition to the movement stage,which affects the arc movement characteristics.In this paper,the arc characteristics during the instability stage on spiral-type contacts were investigated using a high-speed video camera.A multi-column parallel instability mode and a single-column instability mode were found during the instability stage.The arc appearance and constriction degree changed rapidly.The arc voltage usually increased accompanied by fluctuations.In addition,it was found that the current significantly influenced the arc mode and duration in the instability stage.With increased peak current,the probability of a single-column instability mode increased,and the fluctuation range and average time decreased.
引用
收藏
页码：144 / 153
页数：10
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