Analysis of lighting withstand level and flashover phases of tower double circuit transmission line

The overhead transmission lines stretching thousands of miles, accounted for a large part of power system, and lightning transmission line fault is the most main form of power system fault. In order to reduce the transmission corridor area, double circuit and even more loop transmission lines were more and more adopted, and therefore the tower is higher and higher. And the higher the tower, the greater the possibility of being struck by lightning. Thus it is very necessary to research and analyze the tower double circuit transmission line. The model of canal 110kV substation was established and the lighting withstands level and flashover phases were analyzed through the electric transient simulation program ATP-EMTP.