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The Analysis of Discharge Distribution due to the Inner Void of Extra High Voltage Cable

Kim Tag-Yong    (Dept. of Electrical Engineering, Kwangwoon University   ); Hong Jin-Woong    (Dept. of Electrical Engineering, Kwangwoon University  );
  • 초록

    This paper addresses the discharge characteristics of cross-linked polyethylene according to void by the Weibull function. It analyzes discharge number and amount of discharge using Weibull distribution to identify the inter-relationship between partial discharge and defect. We detected a 10 second discharge. The applied voltage increased by 1 [kV] at discharge inception voltage. As a result, in a no-void specimen, the shape parameter was consistent according to the increase of voltage, whereas, in a void specimen, it increased according to the increase of voltage. As the result, the shape parameter expressed a fixed value at no-void specimen. However, in void specimen, according to increasing voltage shape parameter rapidly increases.


  • 주제어

    extra high voltage cable .   inception voltage .   partial discharge .   Weibull function.  

  • 참고문헌 (9)

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    8. L.A. Dissado, J.C. Fothergill; Electrical Degradation and Breakdown in Polymers; Peter Peregirinus Ltd. pp. 117-198, 1987 
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