ZPW_2000A轨道电路的小轨道条件处理方式.pdf

2013 年 5 月 铁 道 通 信 信 号 May 2013 第 49 卷 第 5 期 RAILWAY SIGNALLING ＆ COMMUNICATION Vol. 49 No. 5 ZPW-2000A 轨道电路的小轨道条件处理方式 王利娟 摘 要: 对比分析小轨道电路条件的 2 种处理方式，认为在 ZPW-2000A 轨道电路中，“小轨道条 件不纳入闭塞控制”比 “小轨道条件纳入闭塞控制” 的安全风险要高，控制难度也大; 小轨道 报警信息只纳入微机监测系统比同时纳入控制台和微机监测系统的安全风险更高，更不易控制。 关键词: ZPW-2000A 型轨道电路; 小轨道电路; 联锁; 闭塞 Abstract: Comparing and analyzing the two kinds of processing ways of small track circuit condition，it is concluded that a ZPW-2000A track circuit that includes warning data from small track circuit into its block control has higher safety risk and is harder to be controlled than one that does not include alarm da- ta from small track circuit into its block control． Meanwhile，the safety risk in the case of warning data from small track circuit being included only into the computer monitoring system is higher than that in the case of warning data from small track circuit being included both into the computer interlocking system and computer monitoring system at the same time and the latter is more difficult to control． Key words: ZPW-2000A track circuit; Small track circuit; Interlocking; Blocking 型无绝缘轨道电路是目前我国铁 ZPW-2000A 小轨道电路条件处理方式的对比 路广泛运用的一种轨道电路制式，由主轨道电路和 2 小轨道条件纳入闭塞控制 29 m 调谐区小轨道电路 2 部分组成。小轨道电路 2. 1 ， 调谐区小轨道信号由运行前方相邻轨道电路接 视为本区段主轨道电路的 “延续段” 在室内对应 ( ) ， 收器处理，并将处理结果形成小轨道继电器执行条 设立了小轨道继电器 XGJ 指示小轨道电路工 ， 件 ( ) 送至本区段接收器，本区段接收 作状态 提供小轨道电路条件。 XG、XGH