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논문 기본 정보

자료유형
학술저널
저자정보
윤용기 (Korea Railroad Research Institute) 김성진 (Korea Railroad Research Institute) 고경준 (Korea Railroad Research Institute) 신영인 (KOREA RAILROAD) 김용규 (Korea Railroad Research Institute)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제71권 제11호
발행연도
2022.11
수록면
1,700 - 1,708 (9page)
DOI
10.5370/KIEE.2022.71.11.1700

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초록· 키워드

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Through construction of high-speed railways and railway electrification projects in Korea, individual(or independent) grounding methods were replaced with common grounding methods. Common grounding methods can eliminate potential difference between equipments connected with common grounding wires, but the wires are used as return current paths such as rails. A track circuit cable consists of signal wires and shielding conductors, and connects track circuit devices installed along tracks, transmitters and receivers located in a signal machine room. Shielding conductors at one end of the track circuit cable are connected to the common earth wire, and the conductor at the other end are connected to a grounding terminal of the signal machine room. It was confirmed through measurements that impulse surge current invades to the signal machine room through shield conductors of a track circuit cable connected to grounding wires. Also, it was confirmed that steel frame grounding was used as a path for another impulse surge current to enter the room. Therefore, in this paper, the ground current status of the signal room is analyzed, the improvements of grounding facilities in the signal room are listed, and the improvement effects of the ground current are presented.

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Abstract
1. 서론
2. 고속철도의 접지계통 및 귀선 전류
3. 신호기계실에서의 접지전류 측정
4. 신호기계실의 접지설비 개선작업 및 접지전류 측정
5. 결론
References

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