Experimental Evaluation of Lightning-Surge Propagating in Distribution System and Customer's Facility-Surge Characteristics of Grounding Electrodes and Concrete Poles, and Lightning-surge in Customer's Facility-

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  • 配電系統および需要家に侵入するサージの実験的評価－接地極，コンクリート柱の過渡応答特性および需要家侵入サージ－
  • ハイデン ケイトウ オヨビ ジュヨウカ ニ シンニュウ スル サージ ノ ジッケンテキ ヒョウカ セッチキョク コンクリート チュウ ノ カト オウトウ トクセイ オヨビ ジュヨウカ シンニュウ サージ
  • -Surge Characteristics of Grounding Electrodes and Concrete Poles, and Lightning-surge in Customer’s Facility-
  • -接地極，コンクリート柱の過渡応答特性および需要家侵入サージ-

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Abstract

For the establishment of a more effective grounding design, it is necessary to clarify a transient behavior of a grounding system. In order to verify the current dependency of the grounding electrodes in a distribution system and the behavior of the lightning surges into customer’s premise through the power lines, experiments were conducted using the 3MV impulse voltage generator on a full-scale distribution system and a power line surge simulation mock-up constructed for this purpose. As a result, the behavior of the currents in the distribution system and the possible effects of mutual interference between grounding potentials were successfully identified. In addition, with the lightning surge flow, applied current and low-voltage grounding system parameters, it was possible to evaluate the magnitude of the lightning surges into customer’s facility.

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