Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Experimental study on the lightning impulse breakdown characteristics of air for the development of air-insulated high voltage apparatuses

고전압 전력기기 개발을 위한 기중 임펄스절연파괴특성에 관한 연구

  • Kang, Hyoun-Gku (Electro-Mechanical Research Institute, Hyundai Heavy Industries, Co., Ltd.) ;
  • Kim, Joon-Yeon (Electro-Mechanical Research Institute, Hyundai Heavy Industries, Co., Ltd.) ;
  • Seok, Bok-Yeol (Electro-Mechanical Research Institute, Hyundai Heavy Industries, Co., Ltd.) ;
  • Kim, Dong-Hae (Electro-Mechanical Research Institute, Hyundai Heavy Industries, Co., Ltd.)
  • 강형구 (현대중공업(주) 기계전기연구소) ;
  • 김준연 (현대중공업(주) 기계전기연구소) ;
  • 석복렬 (현대중공업(주) 기계전기연구소) ;
  • 김동해 (현대중공업(주) 기계전기연구소)
  • Published : 2009.07.14
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Abstract

To develop electrically reliable high voltage apparatuses, the experimental study on the electrical breakdown field strength is needed, as well as theoretical approach. In this paper, lightning impulse breakdown characteristics considering utilization factors are investigated for the establishment of insulation design criteria of an high voltage apparatus. The utilization factors are represented as the ratio of mean electric field to maximum electric field. Dielectric experiments are performed by using five kinds of sphere-plane electrode systems made of stainless steel. As a result, it is found that dielectric characteristics are affected by not only gap length but also utilization factor of electrode systems. The results are expected to be applicable to the design of high voltage apparatuses.

Keywords