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Abstract: in the substation grounding design, want grounding resistance and short circuit current from the relationship between the device than the election, and the device anti-corrosion, contact potential and checking the embedding depth and step voltage aspects analysis, and careful analysis of the possible ground problems; At the same time, it should be comprehensive in all aspects of the features, choose the optimum scheme, and adopted various measures, and eventually to ensure that the person and equipment safety substation.
Keywords: substation, grounding device, short-circuit current, grounding resistance
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