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アークホーンから噴出するアークジェットによる66kV架空送電線の相間短絡発生メカニズムおよび短絡防止策に関する検討

アークホーンから噴出するアークジェットによる66kV架空送電線の相間短絡発生メカニズムおよび短絡防止策に関する検討

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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: 2015/06/01

タイトル(英語): Investigations Regarding a Mechanism and a Countermeasure Against the Phase-to-phase Short-circuit Fault due to Arc Jets Spouting from the Arcing Horns for 66kV Overhead Transmission Lines

著者名: 岩田 幹正((一財)電力中央研究所),大高 聡也((一財)電力中央研究所),合田 豊((一財)電力中央研究所),種崎 征利(九州電力(株)),濱川 智仁(日本カタン(株)),上村 健太郎(日本カタン(株))

著者名(英語): Mikimasa Iwata (Central Research Institute of Electric Power Industry (CRIEPI)), Toshiya Ohtaka (Central Research Institute of Electric Power Industry (CRIEPI)), Yutaka Goda (Central Research Institute of Electric Power Industry (CRIEPI)), Masatoshi Tanezaki (Kyushu Electric Power Co., Inc.), Tomohito Hamakawa (Nippon Katan Co., Ltd.), Kentaro Kamimura (Nippon Katan Co., Ltd.)

キーワード: 架空送電線,アークホーン,アークジェット,相間短絡,短絡防止策  overhead transmission line,arcing horn,arc jet,phase-to-phase short-circuit,countermeasure against short-circuit

要約(英語): On a 66kV overhead transmission line equipped with arcing horns, a two-phase short-circuit fault between an upper and a lower line caused by a lightning strike turned into a three-phase short-circuit fault. And, a round inspection after the fault revealed that there were many partially-melted spots on a jumper wire of middle line. In order to clarify the mechanism of the fault experimentally, the short-circuit tests were carried out by using the full scale apparatus considering the installation conditions of the arcing horns on the actual lines. The arc was ignited between arcing horns installed on the lower line, and the aspects of the phase-to-phase short-circuit fault between the lower and the middle line were observed by using the high speed videos. As a result, the arc jets spouted upwards from the arcing horns of the lower line, and the arc showed a tendency of rising easily due to the arc jets. These results suggested that the hot gas generated by the arc and the arc jets caused the breakdown between the lower and the middle line, and the phase-to-phase short-circuit fault occurred. Considering the breakdown phenomena, a countermeasure against the short-circuit fault was investigated.

本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.135 No.6 (2015)

本誌掲載ページ: 380-387 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/135/6/135_380/_article/-char/ja/

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