Characteristics of N2/SF6 Mixture Gas on Creeping Discharge Developed in Narrow Gap with Backside Electrode

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  • Hirata Tomoyuki
    Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo
  • Ueno Hideki
    Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo
  • Nakayama Hiroshi
    Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo

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Other Title
  • 背後電極を有する微小間隙の沿面放電におよぼすＮ２／ＳＦ６混合ガス特性
  • ハイゴ デンキョク オ ユウスル ビショウ カンゲキ ノ エンメン ホウデン ニ オヨボス N2 SF6 コンゴウ ガス トクセイ

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Description

The flashover voltage with the backside electrode was lower than one without the backside electrode. Under μs pulse voltage application, we describe about characteristics of creeping discharge developed in narrow gap with the backside electrode. Using CCD camera and ultra-high speed camera, we observed the corona extension processes. As a result, the lowest flashover voltage was obtained in positive polarity of SF6 content D=3%. In corona extension obtained using ultra-high speed camera, the peculiar differences were observed on the corona extension process. The corona extension increased, and rapid flashover were observed in D=3%. Using CCD camera, the small corona were detected from backside electrode.

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