대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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광섬유 센서로 측정한 절연유에 따른 방전신호 특성

The Characteristics of Discharging signal in various kinds of insulation oil using Optical Fiber Sensor

  • 김태영 (고려대학교 재료금속공학부) ;
  • 남진호 (고려대학교 재료금속공학부) ;
  • 서광석 (고려대학교 재료금속공학부) ;
  • 김상준 (전력연구원)
  • Kim, Tae-Young (Division of Materials Science and Engineering, Korea University) ;
  • Nam, Jin-Ho (Division of Materials Science and Engineering, Korea University) ;
  • Suh, Kwang-S. (Division of Materials Science and Engineering, Korea University) ;
  • Kim, Sang-Joon (Korea Electric Power Research Institute)
  • 발행 : 1999.07.19
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초록

The characteristics of ultrasonic signal in insulation oil were investigated by optical fiber sensor(OFS) utilizing Mach-Zehnder interferometer. For checking the response properties of OFS ultrasonic signal was generated by function generator in various kinds of insulation oil. The attenuation of ultrasonic signal linearly increased with the increase of viscosity of insulation oil in log scale. Discharging signal was produced by neele-sphere electrode system. Intensity of discharging signal was plotted in terms of cumulative $y^2$ and the intensity of discharging signal in new oil was little bigger than that in serviced one.

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