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首页> 外文期刊>Electrical engineering in Japan >Influence of Grounding Resistance Connecting to Surge Arrester on Effectiveness of Lightning Protection Caused by Direct Hit for Power Distribution Lines
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Influence of Grounding Resistance Connecting to Surge Arrester on Effectiveness of Lightning Protection Caused by Direct Hit for Power Distribution Lines

机译：避雷器接地电阻对配电线路直接击中引起的防雷效果的影响

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摘要

In Japan, the grounding resistance of surge arresters (Arrs) for the lightning protection of power distribution lines is generally maintained below 30Ω. Therefore, electric power companies have been spending large amounts of money on the construction and maintenance of low grounding resistances. In this paper, the influence of grounding resistance on lightning protection measures for power distribution lines with both a ground wire (GW) and Arrs is investigated by EMTP analysis and experiments. These results showed that even if the grounding resistance of Arrs becomes high, the effectiveness of lightning protection is hardly decreased. The results also indicated that it is more important for constructing a rational lightning protection system to install a large number of lightning protection devices on power distribution lines than to lower the grounding resistance of Arrs.
机译：在日本，用于配电线路防雷的电涌放电器（Arrs）的接地电阻通常保持在30Ω以下。因此，电力公司已经在低接地电阻的建造和维护上投入了大量资金。本文通过EMTP分析和实验研究了接地电阻对带有地线（GW）和Arrs的配电线路的防雷措施的影响。这些结果表明，即使Arrs的接地电阻变高，防雷效果也不会降低。结果还表明，构建合理的防雷系统在配电线路上安装大量的防雷装置比降低Arrs的接地电阻更为重要。

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