Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Breakdown Characteristics of a Vertical Sphere-Plane Air Gap in the Presence of Combustion Flame

수직배치 구대평판 공기 갭에서 연소화염 존재시의 절연파괴 특성

  • 김인식 (경일대학교 철도전기공학부)
  • Received : 2011.02.24
  • Accepted : 2011.03.30
  • Published : 2011.05.31
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Abstract

In this study, breakdown characteristics of a vertical sphere-plane air gap in the presence of combustion flame were examined under the application of a.c. and d.c. high-voltages in order to investigate the effect of flame on the dielectric strength of air. Propane gas is used as the fuel of the flame, and the temperature distribution of air around the flame is measured. The polarity effects for the d.c. voltages and breakdown voltages of air when applied both of a.c. and d.c. voltages were examined in the case of the variation of the gap length and the horizontal distance between the flame and the high-voltage sphere electrode. The influence of relative air density, electrification and shape changes of the flame as factors that affect the breakdown voltages were discussed.

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References

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  1. Breakdown Characteristics of Air in the Gap between Line Conductor and Plane Electrode in Case of Combustion Flame on the Plane Electrode vol.27, pp.4, 2013, https://doi.org/10.5207/JIEIE.2013.27.4.073