• 제목/요약/키워드: Pole tansformer

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특고압 부싱의 특성분석 및 성능향상을 위한 새로운 설계 (Characteristics of EHV Bushing and a New Design for the Improved Performance)

  • 김찬영;송일근;김주용;이병성;박근형
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2002년도 하계학술대회 논문집 Vol.3 No.2
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    • pp.886-889
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    • 2002
  • This paper describes the characteristic analyses and a new design of the bushing for the pole transformers. The mechanical breakdown of the upper part of the bushing was frequently occurred. This caused the leakage of mineral oil, resulted in the interruption of electric power. Therefore, the bushings were investigated by the material analytical method and Finite Element Method. The analyses were performed by the Induced Coupled Plasma(ICP), X-ray diffraction(XRD), Scanning Electron Microscopy(SEM), and Dielectric Thermal Analyzer(DETA). Also, the Von-Mises stress of the top part of bushing was determined by using ANSYS program. The Von-Mises stress of the newly designed bushing was reduced about 50%. Therefore, if we apply the newly designed bushing, the number of mechanical breakdown may be decreased.

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