Comparative study between Cu and CuCr electrode using two-dimensional particle density image over vacuum arc discharge

Y. Inada, T. Kamiya, S. Matsuoka, A. Kumada, H. Ikeda, K. Hidaka
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引用次数: 1

Abstract

The development of high-capacity vacuum circuit breakers requires the fundamental understanding of the dependence of vacuum arc behaviours on electrode materials. Here, the vacuum arc behaviours are strongly dependent on two-dimensional electron and metal vapour densities over vacuum arc discharges. Therefore, direct diagnosis of these particle densities over vacuum arcs is quite important. However, almost all particle density measurements have been conducted using only Cu electrodes and few experimental results are available in literature about correlation between vacuum arc properties and electrode materials. In this study, we performed 2-dimensional electron density imaging over vacuum arcs generated between Cu electrodes and CuCr (Cu75:Cr25wt%) electrodes.
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真空电弧放电中Cu和CuCr电极二维粒子密度图像的对比研究
开发高容量真空断路器需要对真空电弧行为对电极材料的依赖性有基本的了解。在这里,真空电弧的行为强烈依赖于真空电弧放电的二维电子和金属蒸气密度。因此,在真空弧上直接诊断这些粒子密度是非常重要的。然而,几乎所有的粒子密度测量都是只用铜电极进行的,关于真空电弧性能与电极材料之间相关性的实验结果文献很少。在这项研究中,我们对Cu电极和CuCr (Cu75:Cr25wt%)电极之间产生的真空弧进行了二维电子密度成像。
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