目前我国铁路自动闭塞区段绝大部分采用了ZPW-2000A移频轨道电路,在使用过程中,既有线及高铁线路均出现过分路不良的情况,通号设计院、现场电务段及设备厂家通过调查、试验、分析,制定了新的调整方法,从而减少了ZPW-2000A轨道电路分路不良现象的发生。在调整的过程中产生了一些问题,针对存在问题进行分析,可为现场使用提供参考。 At present, most of China’s railway automatic blockade section adopts ZPW-2000A frequency shift track circuit. In the course of using, both existing lines and high-speed rail lines have experienced over-shunting situation. Through design institutes, on-site service sections and equipment manufacturers Through the investigation, test and analysis, a new adjustment method has been formulated to reduce the occurrence of ZPW-2000A track circuit shunt failure. In the process of adjustment, some problems have arisen, and the analysis of the existing problems can provide a reference for the field use.