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This paper proposed an inverse procedure for evaluating the channel-base current and return stroke velocity using measured far electric fields over a two-layer horizontally stratified ground, where the lightning current along lightning channel adopt the modified transmission line model with linear current decaying with height (MTLL) model. Moreover, the proposed method has been validated using two...
Lightning induced overvoltage is the important reason for the insulation flashover of power distribution line. In order to reduce the lightning accident and to improve the power supply reliability of the distribution network, it is of outstanding significance for engineering purposes to study the lightning current and induced overvoltage on distribution lines. So a 280 meter-long 10 kV power distribution...
In this paper, a numerical model is presented to analyze the grounding grids. The effect of the mutual inductances among grounding system conductors on the performance of the grounding grid is investigated. It can be seen that although the effect of the mutual inductances is very small at power frequency, when a large grounding grid buried in soil with low resistivity is analyzed, the effect of the...
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