金属グリッドを介して放圧する開放容器における内部アークによる圧力上昇の簡易計算モデルの構築とその特性調査

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: 2014/02/01

タイトル(英語): Simple Modelling and Characterization of Pressure Rise due to Internal Arcing in an Open Chamber with Releasing Through a Metal Grid

著者名: 田中　慎一（（一財）電力中央研究所　電力技術研究所），宮城　吏（（一財）電力中央研究所　電力技術研究所），岩田　幹正（（一財）電力中央研究所　電力技術研究所），天川　正士（（一財）電力中央研究所　電力技術研究所）

著者名(英語): Shin-ichi Tanaka (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry), Tsukasa Miyagi (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry), Mikimasa Iwata (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry), Tadashi Amakawa (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry)

キーワード: アーク，圧力上昇，放圧，多孔板，計算モデル，短絡故障　　arc，pressure rise，pressure relief，perforated plate，calculation model，short-circuit fault

要約(英語): In some electrical installations equipped with the pressure relief mechanism for the internal arcing fault, metal grids are set up at the releasing parts. So it is necessary to understand how the pressure in such electrical installations rises during the internal arcing fault. This paper describes an investigation of the internal pressure rise due to the high current arc in an open chamber with releasing through a metal grid. In this investigation, we focused on both the peak value Ppeak and the time to peak tpeak on the internal pressure rise waveform where the oscillating component was removed, because it was experimentally observed that the general variation of such internal pressure rise with time had a point of turning from growing to lessening during the arcing. In order to investigate such internal pressure rise, a simple model for calculation was constructed, and was validated by a comparison with data from the experiment using a perforated metal plate as a metal grid. As a result of the investigation applying this simple model, the dependence of both the Ppeak and the tpeak on conditions of the metal grid, the chamber volume, and the arc energy was derived quantitatively.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.134 No.2 （2014） 特集：接地と雷害・EMC対策

本誌掲載ページ: 183-190 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/134/2/134_183/_article/-char/ja/