대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

W/WC 계 접점의 arc 마모특성

Arc Erosion Properties of W/WC contacts

  • 이희웅 (한국전기연구소 전기재료부 도전.자성재료연구실) ;
  • 변우봉 (한국전기연구소 전기재료부 도전.자성재료연구실) ;
  • 한세원 (한국전기연구소 전기재료부 도전.자성재료연구실)
  • 발행 : 1988.11.25
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초록

W/CE system contacts were manufactured f a press sinter-infiltrate process to compare with their arc erosion mechanism. The results of arc switching test show that erosion rate of contacts is dependence of test current and there is difference in the erosion rates between W contacts and WC contacts. At high current of 1000A erosion rate of W contacts is critically increased by formation of surface cracks. In especial arc anti-erosion is improved by Hi additive.

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