| 放电电弧电磁力计算与气体开关电极机械性能的选择 |
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| 引用本文： | 何孟兵,周圣,李志鹏. 放电电弧电磁力计算与气体开关电极机械性能的选择[J]. 电工材料, 2007, 0(1): 24-26 |
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| 作者姓名： | 何孟兵 周圣 李志鹏 |
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| 作者单位： | 华中科技大学,电气与电子工程学院,武汉,430074 |
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| 摘 要： | 当气体火花开关闭合时,开关电极之间会产生强烈的大电流电弧,电极内部开始有电流流动。电弧电流产生的磁场和电极中的电流相互作用会产生强大的机械力冲击电极表面进而影响开关的性能。本文计算了开关电弧对电极的电磁冲击力,并对开关电极材料机械性能的选择提出了建议。
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| 关 键 词： | 气体火花开关 电弧 电磁力 电极机械性能 |
| 文章编号： | 1671-8887（2007）01-0024-03 |
| 修稿时间： | 2006-10-03 |
Caculation of Arc Magnetic Pressure on Electrode Surface and Choice of Electrode Mechanical Property |
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| HE Meng-bing,ZHOU Sheng,LI Zhi-peng. Caculation of Arc Magnetic Pressure on Electrode Surface and Choice of Electrode Mechanical Property[J]. Electrical Engineering Materials, 2007, 0(1): 24-26 |
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| Authors: | HE Meng-bing ZHOU Sheng LI Zhi-peng |
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| Affiliation: | College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | When spark switch closes,an electric arc forms between the electrode,and current conduction begins. The strong mechanical force generated as the arc forms impacts the electrode and has effects on switch performances. This investigation calculates the pressure generated by high arc current and present some conclusions and recommendations on the choice of electrode mechanical property. |
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| Keywords: | gas spark switch high arc current magnetic pressure mechanical property |
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