The Matlab models of arc and transmission line is given. The Matlab models of Shunda substation and Baoshan substation are used to analysis the earthed arc over-voltage of the 35kV parts of the two substations.

• 以Matlab作为仿真分析工具,建立了间歇性电弧和输电线路的Matlab仿真模型,搭建了乌海电网顺达变电站和宝山变电站的Matlab仿真系统,分析了顺达变电站和宝山变电站35kV系统的弧光接地过电压产生情况以及相应的影响因素。