Estimation of partial discharge onset characteristics in gases around a triple junction

Masanori Hara, Takashi Kurihara, Susumu Kozuru, Junya Suehiro, Noriyuki Hayashi

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A new method of estimating partial discharge onset conditions in gases around a triple junction is proposed. The effectiveness of the method based on the Paschen curve and the potential distribution along the interface between a solid insulator and gas is confirmed experimentally in air at room temperature. The partial discharge onset conditions in air and SF6 gas under different pressures at room temperature and in cryogenic nitrogen and helium gases at saturation temperature and atmospheric pressure are estimated. The partial discharge intensity is discussed on the basis of the proposed method.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Issue number1
Publication statusPublished - Jul 15 2003


All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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