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Network Modeling on Track Circuit and Analysis of Resistance Characteristic on Wood Sleeper  

Yoon, In-Mo (호남대학교 광산캠퍼스 정보통신대학)
Kim, Min-Seok (서울과학기술대학교 철도전문대학원 철도전기신호공학과)
Ko, Young-Hwan (서울메트로 신호팀)
Lee, Jong-Woo (서울과학기술대학교 철도전기신호공학과)
Publication Information
Journal of the Korean Society for Railway / v.13, no.6, 2010 , pp. 565-569 More about this Journal
Abstract
Sleepers perform bearing rails and are underneath rails. Therefore, the current and voltage of rails are related to the resistance of sleepers. In case that the resistance of sleepers are low, operation problems of relays in tr ack circuits are occur because of flowing leakage current through sleepers. So the condition that the track circuit is always occupied by a train is kept. Currently, the creosote has been used in wood sleepers due to prevention against putrefaction. After a long time, the material is changeable to the chemistry material bases on carbon dioxide or carbon. So, the insulation resistance of wood sleepers is lower than the initial insulation resistance. In case of effecting wood sleepers as conductors, amplitude of the current and voltage on rails is decreased. This phenomenon causes that a train does not receive signals. In this paper, four-network model on the track circuit including the insulation resistance of sleepers is suggested. Also, the standard value of the resistance in straight section is proposed in the wood sleeper.
Keywords
Wood sleeper; Track circuit; Short current; Receive voltage; Four-network model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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