3V化25Hz相敏轨道电路在既有线的改造方案

Reconstruction Scheme of 3V 25Hz Phase Detecting Track Circuit in Exiting Lines

分路不良是轨道电路常见的故障,站内25 Hz相敏轨道电路分路不良在使用中尤为突出,通过分析造成25 Hz相敏轨道电路分路不良原因,论述3V化25 Hz相敏轨道电路的原理和优势,给出在站内既有线上各种制式25 Hz相敏轨道电路改造为3V化的方案。

Track circuit shunting loss is a common fault in signaling. 25 Hz phase detecting track circuit shunting loss in a station is conspicuous particularly in the application. Through the analysis of reasons of causing 25 Hz phase detecting track circuit shunting loss, this paper discusses 3v 25 Hz phase detecting track circuit theory and advantages and gives the 3V scheme of reconstructing the 25 Hz phase detecting track circuit in stations of existing lines.