ZPW-2000R轨道电路室内接收端特性研究

Research on Characteristics of Indoor Receiving Terminal of ZPW-2000R Track Circuit

在ZPW-2000系列无绝缘轨道电路调谐区纳入检查的背景下,以ZPW-2000A轨道电路接收器在单机和双机冗余不同配置应用下,调谐区电压可能存在变化为切入点,对应研究ZPW-2000R轨道电路的调谐区及衰耗器实现原理,得出在接收器单机和双机配置应用,或衰耗器内部单通道断线情况下,ZPW-2000R轨道电路接收输入电压、主轨道接入电压、调谐区接入电压均不会有明显变化的规律;经实验室和现场测试,总结归纳出ZPW-2000R与ZPW-2000A的接收端差异,为ZPW-2000R轨道电路的运用维护提供指导。

Under the background of the tuning zone included in the inspection scope of the ZPW-2000 series jointless track circuit,starting from the possible changes in the tuning zone voltage of the ZPW-2000A track circuit receiver in different configurations of single machine and dual machine redundancy,the corresponding research is conducted on the tuning zone and attenuator implementation principles of the ZPW-2000R track circuit.And it is concluded that the received input voltage,main track voltage,and tuning zone voltage of ZPW-2000R track circuit will not show significant changes in the case of single or dual configuration applications,or in the case of single channel disconnection within the attenuator.It is verified through laboratory and on-site testing,and the differences between the receiving terminals of ZPW-2000R and ZPW-2000A are summarized,providing guidance for the application and maintenance process of the ZPW-2000R jointless track circuit.