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광대역 및 협대역을 동시에 사용하는 부분방전 측정 시스템 모듈 개발
이종오(Jong Oh-Lee),유경국(Kyoung-Kook Yu),신인권(In-Kwon Shin),장덕진(Doc-Jin Chang),안창환(Chang-Hwan Ahn) 한국조명·전기설비학회 2015 조명·전기설비학회논문지 Vol.29 No.8
Power plant is that very high reliability when industrial and economic impact on the overall electric power system is required, it is essential to improve the reliability, especially the fault prediction diagnosis. Since an accident caused by the partial discharge in the power plant is above state has a faster response characteristic than the other indications in the case of any, the partial discharge generated in the power plant immediately detect the deterioration of insulation due to the accident of the power plant and the non-drawn It should prevent or reduce. Partial Discharge Measuring Systems for UHV SF6 Gas Insulated Switchgear and power transformer on site installed has some probability of abnormal recognition in case of non-flexible deal with on site noise. Many methode to eliminate these kinds of noises, UHF Detection System is chosen as purchase description in Korea, but this system having a bandwidth between 500㎒ 1.5㎓ wide band. Initial install periods(about 20 years ago), this band had no strong signal source, but in these days this wide band have strong signals, such as LTE. So, module described in this paper is designed as simultaneously use with wide and narrow band for solve this noise problem, and introduce this system.
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