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を防止するアークホーン形状の検討

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: 2016/07/01

タイトル(英語): Investigations on the Form of Arcing Horns for Preventing 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 the arcing horns interrupting the single-line-to-ground fault current (AHIFC), 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. The authors have investigated the mechanism of the fault experimentally and clarified that 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, then those caused the breakdown between the lower and the middle line, and the phase-to-phase short-circuit fault (PPSCF) occurred. In this paper, the authors investigated the PPSCF for the bird-damage prevention arcing horns which were installed in 66kV overhead transmission lines. As a result, the PPSCF tended to occur as the arc current increased and the upward wind velocity increased, which were different quantitatively from, but were similar as the results for the AHIFC. Considering the breakdown phenomena between the lower and the middle line, the investigations were carried out on the form of arcing horns for preventing the PPSCF. It was clarified that the PPSCF could be prevented by decreasing the upward angle and increasing the outward angle away from the steel tower of the both arcing horns on line side and steel tower side in order to move the arc jets spouting from the arcing horns and the hot gases generated by the arc jets in a horizontal direction.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.136 No.7 （2016）

本誌掲載ページ: 677-684 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/136/7/136_677/_article/-char/ja/