66/77kV系統の送電線を対象とした2並列気中ギャップの同時フラッシオーバ特性

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: 2024/01/01

タイトル(英語): Concurrent Flashover Characteristics of Two Parallel Gaps in Air for 66/77kV Overhead Transmission Lines

著者名: 中根　龍一（（一財）電力中央研究所），三木　貫（（一財）電力中央研究所），三木　恵（（一財）電力中央研究所 塩原実験場）

著者名(英語): Ryuichi Nakane (Central Research Institute of Electric Power Industry (CRIEPI)), Toru Miki (Central Research Institute of Electric Power Industry (CRIEPI)), Megumu Miki (Shiobara Testing Yard, CRIEPI)

キーワード: 雷，送電線，多相逆フラッシオーバ，アークホーン，送電用避雷装置　　lightning，transmission lines，multi-phase back-flashover，arcing horns，transmission line surge arresters

要約(英語): We investigate concurrent flashover characteristics under short-tail lightning impulse voltage by using two parallel gaps in air assuming multi-phase back-flashover for 66/77kV overhead transmission lines. The experiment is conducted by using two types of experimental cases. One is rod-rod/rod-rod electrode parallel configuration, the other is EGLA/rod-rod. Short-tail lightning impulse voltage is applied by using a 12MV impulse generator in Shiobara Testing Yard of CRIEPI assuming that lightning strikes a transmission tower. DC voltage is superimposed on one side of two parallel gaps in consideration of the effect of AC phase difference in the actual transmission lines. As a result, we experimentally clarify that concurrent flashover occurs at the flashover electric field EFO from 0.83 to 1.22kV/mm in the air gap.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.144 No.1 （2024）

本誌掲載ページ: 30-39 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/144/1/144_30/_article/-char/ja/