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焦柳线宝丰至襄樊段在双线改造后,移频自动闭塞具有反方向运行的功能,采用监控合一的自动闭塞区间二线制方向电路进行控制。自1991年12月开通以来,在倒换自动闭塞运行方向时,时有发生“双接”故障和区间信号方向错乱的故障。一、故障情况 1、办理改变自动闭塞区间运行方向时,出现原发车站和区间信号点的方向继电器FJ均已转极,原接车站的方向继电器不转极,两个车站均处于接车状态,即“双接”状态。 2、办理改变自动闭塞区间运行方向
After the double-line reconstruction, the Baoshuo line from Baofeng to Xiangfan section has the function of anti-interference in the automatic blocking of frequency shift and the control of the two-wire direction circuit of the automatic blockage zone in one monitoring. Since its opening in December 1991, when switching the direction of automatic blocking operation, sometimes there is a fault of “double connection” and the signal direction of the section is disordered. First, the fault conditions 1, for changing the operation direction of the automatic block zone, the primary station and the interval signal point direction relay FJ have been pole, the original direction of the station relay does not turn pole, the two stations are in the car state , That is, “double access ” status. 2, for changing the direction of automatic block operation