전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제60권5호
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  • Pages.1005-1010
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  • 2011
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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고전압 전력기기 개발을 위한 기중 절연파괴특성 분석에 관한 연구

A Study on the Lightning Impulse Dielectric Characteristics of Air for the Development of Air-Insulated High Voltage Apparatuses

  • 남석호 (충주대 첨단과학기술대 전기공학과) ;
  • 강형구 (충주대 첨단과학기술대 전기공학과)
  • 투고 : 2011.02.10
  • 심사 : 2011.04.25
  • 발행 : 2011.05.01
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초록

The accidents caused by dielectric instability have been increasing in power grid. It is important to enhance the dielectric reliability of a high voltage apparatus to reduce the damage from electrical hazards. To develop an electrically reliable high voltage apparatus, the experimental study on the electrical breakdown field strength is indispensable, as well as theoretical approach. In this paper, the lightning impulse breakdown characteristics considering utilization factors are studied 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 several kinds of sphere-plane electrode systems made of stainless steel. As a result, it is found that dielectric characteristics are affected by not only maximum electric field intensity but also utilization factors of electrode systems. The results are expected to be applicable to designing the air-insulated high voltage apparatuses.

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참고문헌

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피인용 문헌

  1. Analysis on the Dielectric Characteristics of Gaseous Nitrogen for Developing Eco-friendly High Voltage Apparatuses vol.63, pp.4, 2014, https://doi.org/10.5370/KIEEP.2014.63.4.356
  2. Analysis on Electromagnetic Loss Characteristics of Bus bar and Enclosure according to the Specifications of Enclosures for a 24kV Switchgear vol.62, pp.4, 2013, https://doi.org/10.5370/KIEEP.2013.62.4.181
  3. A Study on the Electrical Breakdown Characteristics of Air according to Electrode Gap vol.63, pp.4, 2014, https://doi.org/10.5370/KIEEP.2014.63.4.301
  4. A Study on the Dielectric Characteristics of GFRP in LN2under Lightning Impulse Voltage According to Pressure vol.61, pp.10, 2012, https://doi.org/10.5370/KIEE.2012.61.10.1471