The previous research mainly depends on the arc voltage to estimate the arc position, and testing the dielectric recovery strength, and reignition process to judge the ability of arc extinguishment.

• 以往的研究工作主要根据电弧电压波形来判断电弧大概的位置，利用介质恢复强度测试和大量的重燃试验来判断低压电器的熄弧性能。