In order to analyze the relationship between the vacuum degree in vacuum breaker s arc extinguish chamber and potential on shielding cover,a test system was designed to detect the potential.

• 为分析真空断路器灭弧室内真空度(即内部气体压强)与屏蔽罩上电位的关系,设计了一套模拟真空断路器运行环境和检测屏蔽罩上电位的试验系统。