An ATP-EMTP-Based Simulation Method for Lightning Back Striking Considering Impulse Corona and Coupling Ground Wire

The influence of impulse corona is taken into consideration by inserting equivalent complementary capacitance at both terminals of each short line based on its analysis. The model of tower is improved so that we can consider the effect of coupling ground wire (CGW) as well as that of impulse corona. The contrasts of lightning back striking simulation results show that impulse corona and CGW affects the breakdown data of transmission line and insulators greatly.

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