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A Study on Degradation Properties of Silicone Cable due to Partial Discharge

부분 방전에 의한 실리콘 케이블의 열화 특성에 관한 연구

  • Lee, Sung Ill (Department of safety Engineering, Korea National University of Transportation)
  • 이성일 (한국교통대학교 안전공학과)
  • Received : 2014.12.15
  • Accepted : 2014.12.21
  • Published : 2015.01.01

Abstract

In this study, the characteristics of partial discharge was measured for the four core silicone cable (0.6/1.0 kV, $1.0SQ{\times}4C$) with insulated part of 15 cm and conductor of 1cm. The following results have been confirmed as a result of this study. When the first line of cable is connected to the positive electrode and the second, third line of cable is connected to the negative electrode, it found that the inception voltage and extinction voltage decreased with increasing the line of negative electrode, and the partial discharge charge quantity(Q) increases, while the number of discharge occurrence has decreased. The inception voltage and extinction voltage of partial discharge has decreased with increasing the degradation rate in the 33%, 67%, 100%. Also, it confirmed that the partial discharge charge quantity(Q) and the number of discharge occurrence has decreased.

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