Transition Duration at Arc Occurrence and Termination caused by Interrupting Low Current in Air at Atmospheric Pressure

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2016/06/01

タイトル(英語): Transition Duration at Arc Occurrence and Termination caused by Interrupting Low Current in Air at Atmospheric Pressure

著者名: Shigeki Minegishi (Faculty of Engineering, Tohoku-gakuin University), Ken Kawamata (Faculty of Engineering, Tohoku-gakuin University)

著者名(英語): Shigeki Minegishi (Faculty of Engineering, Tohoku-gakuin University), Ken Kawamata (Faculty of Engineering, Tohoku-gakuin University)

キーワード: transition duration，electromagnetic interference，interrupting current，transmission line，impedance matching

要約(英語): A transition duration at the steady arc occurrence and termination caused by interrupting a current is measured. In consideration of the fast transients and high frequency discharge phenomena due to interrupting the current, a transmission line system was introduced. It consists of a coaxial switch, coaxial cables as transmission lines on the right and left sides of the switch, and termination resistors. The material of the inner conductor of the coaxial switch for interruption of the current is silver and copper. The resistors were designed to match the characteristic impedance of the cables. A semi-rigid cable as a coaxial cable and a coaxial attenuator (DC∼8.5GHz) as the termination resistor were used on the right side of the switch for measurement of transition duration. When the current is interrupted by the switch, the transient waveform of output of the attenuator is measured by an oscilloscope (DC∼4.5GHz). Regardless of the materials of the center conductor of the switch, the transition duration at the arc occurrence and termination caused by interrupting low current (0.5-1.0A) is 0.2∼0.4 ns and 1.28∼2.08 ns, respectively, and does not depend on the material of the inner conductor of the switch and current value. The transition duration at the arc occurrence is very rapid.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.6 （2016） 特集：広帯域電磁界の電子機器および通信に対する障害

本誌掲載ページ: 336-340 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/6/136_336/_article/-char/ja/