交流真空接触器触头侵蚀率剖析

On the Contact Erosion Rates in AC Vacuum Contactors

在扩散型电弧条件下对交流真空接触器触头侵蚀的特点进行剖析。文中，引用美国四屋公司最近的实验研究结果，指出了交流、小开距、扩散型电弧情况下的触头侵蚀率远低于直流、大开距、扩散型弧以及一般文献中给出的真空触头阴极侵蚀率。最后，对此论题内容作了分析和讨论。

Under the condition of diffuse type of vacuum arcs the contact erosion rates in AC vacuum contactors are analysed. By using the experimental results of Westinghouse USA, the conclusion is that the contact erosion rates in the case of small contact gap and AC diffuse type arcs are markedly smaller than that in the case of fig contact gap and DC diffuse type arcs. At last some anal analyses and discussions are done.