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정전구간 최소화를 위한 방향과전류계전기 기반 분산전원 보호 방법
강용철(Kang, Yongcheol),이병은(Lee, Byungeun),김은숙(Kim, Eunsuk),황태근(Hwang, Taekeun),이지훈(Lee, Jihoon),차선희(Cha, Sunhee),박종민(Park, Jongmin),정태영(Jung, Taeyoung) 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
Distributed generation (IX;) plays an important role in the power system nowadays. Over-current relay, widely used in the DG protection, causes a wide outage section and long time delay. This paper proposes a DG protection technique to minimize the outage section. The proposed method uses three directional over-current relays with delay, which are connected to the point of common coupling. The method can minimize the outage section.