電気所構内の無線通信鉄塔への雷撃による低電圧回路への過電圧の発生と抑制対策の検証

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2024/08/01

タイトル(英語): Verification of Occurrence of Overvoltage in Low-Voltage Circuits due to Lightning Strikes on Wireless Communication Towers in Electric Supply Stations and Measures to Suppress

著者名: 吉田　昌展（中部電力（株）技術開発本部），小椋　陽介（中部電力（株）技術開発本部），伊佐治　宏子（中部電力（株）技術開発本部），別所　克俊（中部電力パワーグリッド（株）四日市支社），米澤　要（（株）サンコーシヤ），清水　雅仁（中部電力（株）技術開発本部）

著者名(英語): Masanobu Yoshida (Chubu Electric Power Co. Inc.), Yosuke Ogura (Chubu Electric Power Co. Inc.), Hiroko Isaji (Chubu Electric Power Co. Inc.), Katsutoshi Bessho (Chubu Electric Power Grid Co, Inc.), Kaname Yonezawa (Sankosha Corporation), Masahito Shimizu (Chubu Electric Power Co. Inc.)

キーワード: 雷，サージ，低電圧回路，無線通信鉄塔，電気所　　lightning，surge，low-voltage circuits，communication tower，electric supply stations

要約(英語): In order to investigate measures to prevent damage to low-voltage circuits caused by direct lightning strikes to communication towers in electric supply stations, an impulse test was conducted and evaluated the effect of improving the grounding structure on reducing surge voltage in low-voltage circuits. The measures to improve the grounding structure include: (1) Reduction of the current itself flowing to the building ground wire. (2) Suppress the potential difference that occurs between the ground of the transformer for the power supply in the station and the building ground. (3) Eliminate the mixing of low-voltage cables with metal shielding (grounding at both ends of the shielding layer) and low-voltage cables without metal shielding. As a result of the experimental verification, we have confirmed that each of the three methods is effective in reducing the surge voltage generated in low-voltage circuits.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.144 No.8 （2024）

本誌掲載ページ: 461-469 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/144/8/144_461/_article/-char/ja/