Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- summer
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- Pages.584-586
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- 2004
The Development of Fault and Lightning Stroke Section Location System for Overhead Transmission Line
가공지선 전류 검출 방식의 송전선 사고 및 낙뢰 구간 검출 시스템 개발
- Lee C.Y. (Electric Power Research & Technology Center, LG Cable Ltd) ;
- Kim J.N. (Electric Power Research & Technology Center, LG Cable Ltd) ;
- Oh D.J. (Electric Power Research & Technology Center, LG Cable Ltd) ;
- Ha C.W. (Electric Power Research & Technology Center, LG Cable Ltd) ;
- Kim D.W. (Electric Power Research & Technology Center, LG Cable Ltd)
- 이창영 (LG 전선(주) 전력연구소) ;
- 김정년 (LG 전선(주) 전력연구소) ;
- 오덕진 (LG 전선(주) 전력연구소) ;
- 하체웅 (LG 전선(주) 전력연구소) ;
- 김동욱 (LG 전선(주) 전력연구소)
- Published : 2004.07.14
Abstract
This paper deals with the development of on-line fault and lightning stroke section locating system for branched overhead transmission line. The section locating algorithm of this system i3 by analyzing the distribution pattern of current flowing through the overhead ground wire. It composes of three parts; current sensors, local remote terminal unit(RTU) and analysis program at surveillance tenter. Double Rogowski coil sensor having integrating amplifier was designed as current sensor. In order for current pattern analysis, the transmitted waves from each sensor wert synchronized by GPS tim c clock in RTU. While, lightning stroke location are judged only by polarity information of lightning currents. This design has a benefit in simplicity of signal processing unit of RTU.
Keywords