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The transient characteristics of a grounding grid is very important for the safety of the equipment on it, which is quite different from the performance at power frequency. In this paper, based on numerical simulation, the factors due to the grounding grid that affect its transient performance were discussed. The methods to improve the transient performance of the grounding grid such as increasing...
Lightning transient characteristics of the grounding grid is the fundamental performance for lightning protection of the substation. The stability and safety of the 500-kV substation is of great importance to the safe operation of the power system. The characteristic of grounding grid is quite different from that at the power-frequency condition when subject to lightning impulse current. Using CDEGS...
A Boundary Element Approach is used to get the numerical computation of grounding system analysis such as the equivalent resistance and the distribution of potential on the earth surface due to fault currents. The results in this paper are produced by the techniques that have been implemented in a computer aided design (CAD) system for grounding grids of electrical substations. The paper investigates...
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