By changing electrode contour, main shield shape, the gap length between electrode and shield and adding poising shield, the factors affecting its electric field distribution were studied.

• 通过采取改变触头轮廓、调整主屏蔽罩形式以及其与触头之间的距离、增加均压屏蔽罩等方式，对影响灭弧室内部电场分布的因素进行了研究。