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随着我国电气化轨道交通的快速发展,轨道交通网络覆盖域越来越广,列车穿梭于不同的地域环境中,在特殊的气候条件下接触网运行容易出现污闪、过压、滤波和通信干扰等情况而造成故障,使接触网出现拉弧现象,甚至造成弓网事故,将引起列车晚点和破坏运营安全.本文结合变电所主接线案例探索故障诊断的原因,用于在供电接触网设备故障维护时保存记录,并建立完善的数据库管理或案例相似法则,可有效的解决接触网故障检测与诊断的难题,为铁轨道交通安全运营提供了一项可靠的技术保障.
With the rapid development of electrified rail transit in our country, the coverage area of the rail transit network is getting wider and wider, and the trains shuttle in different geographical environments. Contamination, overpressure, filtering and communication interference are easily occurred in the catenary operation in special climatic conditions And other conditions caused by the failure to make the catenary arc phenomenon, or even cause bow network accidents, will lead to train delays and damage to operational safety.In this paper, substation main connection case to explore the reasons for fault diagnosis, used in power catenary equipment The maintenance of records during fault maintenance and the establishment of a sound database management or case similarity rule can effectively solve the problems of fault detection and diagnosis of the contact network and provide a reliable technical guarantee for the safe operation of the rail transit traffic.