한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 1999년도 학술대회논문집-국제 전기방전 및 플라즈마 심포지엄 Proceedings of 1999 KIIEE Annual Conference-International Symposium of Electrical Discharge and Plasma
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- Pages.296-298
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- 1999
변압기내 결함의 종류에 따른 부분방전의 초음파신호 특성 분석
Characteristics of Ultrasonic Signal by Defect types in the Transformer
초록
Out of the defects occurred in a transformer, the cases of protrusion and surface discharge were simulated by using needle-plane and IEC(B) electrode. The waveform and frequency characteristics of ultrasonic signals due to partial discharge occurred at each electrode were analyzed. And then, the ultrasonic signal characteristics from the partial discharge due to the two kinds of defect were compared. As a result, in the case of the protrusion and surface discharge, the waveforms were similar, but the frequency spectra were different.
키워드