背後電極を有する微小間隙内を進展する沿面放電特性 [in Japanese] Characteristics of Creeping Discharge Developed in Narrow Gap with Backside Electrode [in Japanese]
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The flashover voltage with a backside electrode below needle was lower than one without a backside electrode. Under μs pulse voltage application, we describe about characteristics of creeping discharge developed in narrow gap with a backside electrode. Using CCD camera and ultra-high speed camera, we observed corona extension process. As a result, in result of the flashover voltage and corona onset voltage, flashover voltage decreased in positive polarity of SF_6 content D=3%. In corona extension using ultra-high speed camera, the peculiar difference were observed on the corona extension process, the corona extension decreased in D=0%, rapid flashover were observed in D=3%. Using CCD camera, the small corona were detected from backside electrode.
- Reports of Graduate School of Engineering, University of Hyogo
Reports of Graduate School of Engineering, University of Hyogo (57), 1-7, 2004