Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical Characteristics Analysis According to Electrode Shape and Distance Between Electrodes

전극 형태와 전극 간 거리에 따른 전기적 특성 분석

  • Tae-Hee Kim (Department of Electrical and Electronics, Dongshin University) ;
  • Soon-Hyung Lee (Department of Electrical Engineering, Dongshin University) ;
  • Mi-Yong Hwang (Department of Culture Studies, Chosun University) ;
  • Yong-Sung Choi (Department of Electrical and Electronics, Dongshin University)
  • 김태희 (동신대학교 전기전자공학과) ;
  • 이순형 (동신대학교 전기공학과) ;
  • 황미용 (조선대학교 문화학과) ;
  • 최용성 (동신대학교 전기전자공학과)
  • Received : 2023.06.01
  • Accepted : 2023.06.07
  • Published : 2023.07.01
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Abstract

In this paper, in order to analyze high electrical insulation and cooling performance using mineral oil, the liquid insulating oil was changed in electrode shape and distance between electrodes to compare and analyze electrical characteristics according to equal electric field, quasi-equivalent electric field, and unequal electric field. As a result, the breakdown voltages were 36,875 V and 36,875 V in the form of sphere-sphere and plate-plate electrodes with equal electric fields. The breakdown voltage was 31,475 V in the sphere-plate electrode type, which is a quasi-equilibrium field, and the breakdown voltage was 28,592 V, 27,050 V, and 22,750 V in the needle-needle, sphere-needle, and needle-plate electrode types, which are unequal fields. Through this, it is possible to know the difference in breakdown voltage according to the type of electric field. The more equal the field, the higher the breakdown voltage, and the more unequal field, the lower the breakdown voltage. The difference in insulation breakdown voltage could be seen depending on the type of electric field, the insulation breakdown voltage was higher for the more equal electric field, and the insulation breakdown voltage was lower for the more unequal electric field. Also, it was confirmed that the closer the distance between the electrodes, the higher the insulation breakdown voltage, the higher the insulation breakdown current, and the insulation breakdown voltage and the insulation breakdown current were proportional.

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References

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