对武广电气化区段信号电源可靠性的分析

Discussion for Power Supply Reliability of Automatic Block Signal for Wuguang Railway

铁路行车信号用电是铁道运输重要的一级负荷,由10kV自动闭塞线路提供电源。在2008年初的大冰雪中,由于大电网供电中断造成京广线武广电气化区段区间信号和车站信号灯不能工作,严重影响了行车。在这场自然灾害过后,重新审视自动闭塞信号供电可靠性问题,是十分必要的。从系统的外部电源、10kV配电所的自动化程度两个方面探讨了电气化区段自动闭塞信号供电可靠性存在的问题,并提出了改进建议。

Power supply of railway automatic block signal is an chiefly load. Signals were unable to work in the early 2008＇s in the ice and snow disaster. Because the power supply of the Railway Beijing-Guangzhou line Wuguang sector was interrupted. It affected traffic seriously. It is extremely necessary that re-examine the power supply reliability of railway automatic block signal after the disaster. This paper analysis power supply system of railway automatic block signal. And discussion some problems about power supply reliability from four parts： the external power supply system, automation system of 10kV substation. And put some suggestions for imorovement.