SF_6高压断路器灭弧室中触头对电场分布的影响

Influence of contacts on electric field of SF_6 tank-type circuit breaker

采用等参元有限元法对罐式断路器灭弧室区域的三维电场进行了计算.着重分析了触头对电场分布的影响,给出了触头截面上的电场强度分布.对触头间相对位置的变化对电场的作用进行了研究和分析,并给出了电场强度的数值对比.

The threedimension electric field in arcquenching chamber of tanktype breaker was computed with finite element method. The distribution of electric field intensity was obtained and the contacts' effects on electric field were analyzed emphatically. The electric field was also studied when the distance between contacts was changed and the changing rate of electric field intensity was presented.