Particle-triggered pre-breakdown phenomena in atmospheric air gap under ac voltage

Masanori Hara, Yulistya Negara, Makoto Setoguchi, Takashi Kurihara, Junya Suehiro, Noriyuki Hayashi

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Corona discharge mechanism and breakdown voltage characteristics of air gaps in the presence of metallic particles were investigated including the relationship between the corona discharge mechanism and the phase resolved partial discharge patterns. These results are of interest for detection of foreign particles in gas insulated systems (GIS). The results with different shaped particles show that the corona mechanism depends on the particle shape and applied voltage. Moreover the corona discharges on both sides of the particle interfere with each other by inflow of charge carriers into the particle. The breakdown voltage is a minimum when the particle is in the vicinity of the electrode due to active interference of coronas. The phase-charge characteristics as the phase resolved partial discharge patterns vary with the particle shape. This suggests that the corona discharge mechanisms for all types of particles should be considered in the particle-detection method for GIS based on the phase resolved partial discharge patterns

Original languageEnglish
Pages (from-to)1071-1081
Number of pages11
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume12
Issue number5
DOIs
Publication statusPublished - Oct 1 2005

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Partial discharges
Electric breakdown
Electric potential
Air
Charge carriers
Gases
Discharge (fluid mechanics)
Electrodes

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Particle-triggered pre-breakdown phenomena in atmospheric air gap under ac voltage. / Hara, Masanori; Negara, Yulistya; Setoguchi, Makoto; Kurihara, Takashi; Suehiro, Junya; Hayashi, Noriyuki.

In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 12, No. 5, 01.10.2005, p. 1071-1081.

Research output: Contribution to journalArticle

Hara, Masanori ; Negara, Yulistya ; Setoguchi, Makoto ; Kurihara, Takashi ; Suehiro, Junya ; Hayashi, Noriyuki. / Particle-triggered pre-breakdown phenomena in atmospheric air gap under ac voltage. In: IEEE Transactions on Dielectrics and Electrical Insulation. 2005 ; Vol. 12, No. 5. pp. 1071-1081.
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