Interpretation of Arc Column Resistance Rise on basis of Temperature and Cu Vapor Concentration of DC Arc Established in Silica Sand Filling Space

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: 2021/11/01

タイトル(英語): Interpretation of Arc Column Resistance Rise on basis of Temperature and Cu Vapor Concentration of DC Arc Established in Silica Sand Filling Space

著者名: Naoto Kodama (Department of Electrical Engineering, Nagoya University), Yasunobu Yokomizu (Department of Electrical Engineering, Nagoya University), Asato Takahashi (Department of Electrical Engineering, Nagoya University), Koya Nakamura (Department of El

著者名(英語): Naoto Kodama (Department of Electrical Engineering, Nagoya University), Yasunobu Yokomizu (Department of Electrical Engineering, Nagoya University), Asato Takahashi (Department of Electrical Engineering, Nagoya University), Koya Nakamura (Department of El

キーワード: DC arc，fuse，OES，arc temperature，Cu vapor

要約(英語): DC arc interruptions were carried out under following two conditions: (1) silica sand filling without any cylinder arrangement (designation: Silica), and (2) The silica sand filling with a quartz cylinder arrangement (designation: SilicaQuartz). During these experiments, optical emission spectroscopy (OES) measurements were carried out to investigate an arc column resistance rise by the quartz cylinder arrangement. An arc temperature T and a Cu vapor concentration were evaluated from the OES results. As a result, T were measured to be around 24 kK for the Silica condition and 17kK for the SilicaQuartz condition at a current peak. The Cu vapor concentration under the Silica condition gradually decreased with T decaying. On the other hands, the quartz cylinder arrangement in the silica sand filling space drastically decreased the Cu vapor concentration during an arc-quenching process. This drastic decrease in the Cu vapor concentration is one of key factors to increase rcol under the cylinder arrangement in the silica sand filling space. This verification result can be useful to increase an interruption capacity of fuse.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.11 （2021） 特集：開閉保護技術

本誌掲載ページ: 725-733 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/141/11/141_725/_article/-char/ja/