| 不同电流下气体开关电极烧蚀特性实验研究 |
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| 引用本文： | 黄涛,罗维熙,丛培天,曾江涛,孙铁平.不同电流下气体开关电极烧蚀特性实验研究[J].强激光与粒子束,2014,26(4):045042. |
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| 作者姓名： | 黄涛 罗维熙 丛培天 曾江涛 孙铁平 |
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| 作者单位： | 1.西北核技术研究所,强脉冲辐射环境模拟与效应国家重点实验室,西安71 0024 |
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| 基金项目： | 国家自然科学基金重点项目(51237006) |
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| 摘 要： | 在不同短路电流条件下,进行了不锈钢(1Cr18Ni9Ti)电极气体火花开关连续多次自击穿放电实验,通过测量电极质量损失、表面粗糙度和自击穿电压的变化,研究电极烧蚀特性及其对自击穿性能的影响。实验结果表明:随着放电电流峰值和周期增大,电极材料烧损速率与电容电荷量呈线性增加,而电极表面烧蚀粗糙度与电流峰值呈线性增大,自击穿电压变化达到峰值和稳定区的放电次数减少,但稳定阶段的自击穿电压值及其相对标准偏差同时减少,五种放电电流情况下,自击穿电压概率密度分布均遵循高斯函数。
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| 关 键 词： | 气体火花开关 电极烧蚀 自击穿电压 高斯分布 |
| 收稿时间： | 2013/10/21 |
Experimental study on electrode erosion characteristics of spark gas switch under different current |
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| Institution: | 1.Key State Laboratory of Simulation and Effect for Intense Pulse Radiation,Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China |
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| Abstract: | Self-breakdown experiments were carried out with stainless steel (1Cr18Ni9Ti) electrode under different short current conditions. Electrode erosion and its effect on self breakdown were investigated by measuring various electrode mass loss, electrode surface roughness and breakdown voltage. The results are as follow: when current peak and periods increase, electrode mass loss rate and capacitance charge are linear, also the surface roughness and current peak are linear; when current peak and periods increase, the required breakdown numbers when self breakdown voltage comes to the peak and steady region decrease, also the self breakdown voltage and relative standard deviation in steady phase decrease; the distribution of self break down voltage probability follows Gauss distribution in all five current conditions. |
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| Keywords: | spark gas switch electrode erosion self-breakdown voltage Gaussian distribution |
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