Particle-initiated Breakdown Characteristics around Spacer under Lightning Impulse Voltage Superimposed on Pre-stressed DC

Yasin Khan, Junya Suehiro, Masanori Hara, Shigemitsu Okabe

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1 Citation (Scopus)


This paper deals with the effect of the magnitude and polarity on the particle initiated breakdown characteristics around a simple shaped spacer in quasi-uniform field gap under lightning impulse voltage superimposed on pre-stressed DC voltage. The results are discussed on the dust figure technique and also on the breakdown voltage / delay time characteristics, while keeping in view the magnitude of the pre-stressed DC applied voltage. Consequently, it was found that the surface charges accumulated on the spacer in the vicinity of the particle tip under the pre-stressed DC voltage play an important role in the particle initiated breakdown phenomenon.

Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalThe transactions of the Institute of Electrical Engineers of Japan.A
Issue number7
Publication statusPublished - Jan 1 2004


All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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