Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Characteristics of the Surface Discharge and Tracking Phenomena in Liquid Nitrogen

액체질소 중의 연면 방전과 트레킹 현상

  • Shin, Ho-Young (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Yoon, Dae-Hee (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Lee, Sang-Hoon (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Lee, Kwang-Sik (School of Electrical and Electronic Engineering, Yeungnam University) ;
  • Lee, Dong-In (School of Electrical and Electronic Engineering, Yeungnam University)
  • 신호영 (영남대학교 전기전자공학부) ;
  • 윤대희 (영남대학교 전기전자공학부) ;
  • 이상훈 (영남대학교 전기전자공학부) ;
  • 이광식 (영남대학교 전기전자공학부) ;
  • 이동인 (영남대학교 전기전자공학부)
  • Published : 1999.07.19
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Abstract

This paper was studied on the surface discharge characteristics and tracking phenomena on the solid insulator in liquid nitrogen ($LN_2$) at atmospheric pressure. In order to investigate the bubbles which have much influence on electric surface discharge in liquid nitrogen, Knife type electrode and plane electrode were arranged in different modes(Mode A, Mode B, and Mode C) and investigated for surface discharge and tracking phenomena. In Mode A, by the movement of bubbles tracking damage was formed under the electrodes. The tracking pattern in Mode B was formed along the electrode axis.

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