ZPW-2000A移频脉冲轨道电路在普铁上的应用

Application of ZPW-2000A Frequency-shift Pulse Track Circuits in Conventional Railways

国内普速铁路站内轨道电路绝大部分采用25 Hz轨道电路,但在运用维护中也逐渐暴露出分路不良、轨道电路和电码化“两层皮”等亟需解决的问题。ZPW-2000A移频脉冲轨道电路集成移频和脉冲两种轨道电路的优点,用两种信号的优势解决站内轨道电路顽疾。论证了ZPW-2000A移频脉冲轨道电路在普铁上应用的可行性。

At present,the vast majority of track circuits in the stations of conventional railways in China are 25 Hz track circuits.However,in their usage and maintenance,they have gradually exposed problems that need to be solved,such as bad shunting,and the"two-layer approach"to the coding of track circuits.ZPW-2000A frequency-shift pulse track circuits integrate the advantages of both frequency-shift track circuits and pulse track circuits,using the advantages of both types of signals to solve the persistent problem of track circuits in the station.This article demonstrates the feasibility of applying ZPW-2000A frequency-shift pulse track circuits in the conventional railway stations.