The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Discharge Signal Detection in Insulating Oil using the Optial Fiber Sagnac Interferometer

광섬유 Sagnac 간섭계를 이용한 유중방전 신호검출

  • 이종길 (안동대 기계공학교육과) ;
  • 이준호 (호서대 전기공학부) ;
  • 김상준 (한전 전력연구원 전기이용기술그룹)
  • Published : 2000.11.01
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Abstract

In this paper, an optical fiber sensor(OF sensor) utilizing the principal of Sagnac interferometer was proposed to detect the discharge signals. The needle-sphere electrode system in insulating oil generated the signals. The performance of OF sensor was checked by sinusoidal calibration signal generated by PZT actuator at 198KHz. The detected discharge signals consisted of acoustic signal and the electrical noise. The noise signal could be removed by digital low pass filter. It was demonstrated that the OF sensor in this research had a possibility to detect the discharge signals in power apparatus.

Keywords

References

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