Lightning Surges on a Control Cable Incoming through a Grounding Lead

カテゴリ: 部門大会

論文No: 12

グループ名: 【B】平成18年電気学会電力・エネルギー部門大会講演論文集

発行日: 2006/09/13

タイトル(英語): Lightning Surges on a Control Cable Incoming through a Grounding Lead

著者名: 雨谷 昭弘(同志社大学),滝 憲和(同志社大学),長岡 直人(同志社大学),岡部 成光(東京電力)

著者名(英語): Akihiro Ametani(Doshisha University),Norikazu Taki(Doshisha University),Naoto Nagaoka(Doshisha University),Shigemitu Okabe(Tokyo Electric Power Company)

キーワード: lightning surge|low-voltage control cable|grounding mesh|sheath grounding|induced voltage

要約(日本語): The present paper investigates the effect of sheath grounding, when a lightning current flows into counterpoises representing a part of a grounding mesh. A short section of a counterpoise is modeled by a distributed line with additional shunt admittances on the both ends representing leakage currents from the counterpoise to the earth. A control cable and the counterpoise are modeled as a multiphase distributed line so as to take into account mutual coupling between them. With various conditions of the metallic sheath when a lightning current flows into the sending end of the counterpoise, voltages and currents on the control cable are investigated based on EMTP simulations.

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