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다중권선 ZCT를 이용한 누전차단기의 누전 검출회로 자동진단 연구
윤덕경(Deog-Gyeong Yoon),박상한(Sang-Han Park),장기호(Ki-Ho Jang),김광수(Gwang-Su Kim),서문수(Moon-Soo Seo) 한국조명·전기설비학회 2020 조명·전기설비학회논문지 Vol.34 No.12
Residual current device(RCD) is a protective device used for the purpose of preventing electric shock accidents, fires caused by short circuits, and damage to equipment caused by arc fault. RCD shall be checked at least once a month using the manual testing. However, if a power shutdown is not possible depending on the load, it is used without periodic check. Therefore, even if the actual leakage current occurs, it will lead to a bigger accident. In this paper, the RCD capable of automatic diagnosis of detecting residual circuits without opened was developed and its performance verified.