A study of erosion process of electrical contacts by high-speed spectroscopic observation of electrical contact surfaces contacting with arc discharges

提出了一种利用两对高速摄像机和光学带通滤光片观测电接触面和断口弧线的方法。通过接触表面痕迹的变化与断口电弧运动特征之间的关系，研究了接触表面痕迹的形成过程。研究结果表明，在保持断弧的情况下，接触面上的痕迹形成的周期和次数。

An observation method of electrical contact surfaces and break arcs was proposed using two pairs of a high-speed camera and an optical band pass filter. The formation process of traces on the contact surface was investigated by the relation between the changes of the traces on the contacts and the motion characteristics of the break arcs. As a result of investigation, the periods and times when the traces on the contact surfaces were formed were shown while the break arcs were maintained.