K-means 군집화 기법을 이용한 개폐장치의 부분방전 패턴 해석 = Analysis of Partial Discharge Pattern of Closed Switchgear using K-means Clustering

다국어 초록 (Multilingual Abstract)

In this study, we measured the partial discharge phenomenon of inside the closed switchgear, using ultra wide band antenna. The characteristics of $\Phi-q-n$ in the normal state are stable, and confirmed at less than 0.01, but in proceeding states, about 2 times larger. And in the abnormal state, it grew hundreds of times larger compared with normal state. According to K-means analysis, if slant of discharge characteristics is a straight line close to "0" and standard deviation is small, it is in a normal state. However if we can find a peak from K-means clusters and standard deviation to be large, it is in an abnormal state.

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