Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07e
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- Pages.2066-2068
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- 1999
Discharge Signal Detection in Insulating Oil using Optical Fiber sensor
광섬유센서를 이용한 유중방전 신호검출
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Lee, June-Ho
(Hoseo Univ.) ;
- Lee, J.K. (Andong Univ.) ;
- Kim, Sang-Joon (KEPRI) ;
- Nam, J.H. (Korea Univ.)
- Published : 1999.07.19
Abstract
In this paper, an optical fiber sensor(OF sensor) utilizing the principal of Sagnac interferometer was proposed to detect the discharge signals which generated from needle-sphere electrode system in insulating oil. The performance of OF sensor was checked by sinusoidal calibration signal generated by PZT acuator 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