地铁钢轨电位限制装置与排流柜配合研究

钢轨电位限制装置和排流柜已用于全国各地在运行地铁,当轨电位升高致钢轨电位限制装置合闸时,会导致杂散电流泄漏量明显增加,需要排流柜投入使用,而当排流柜投入排流时,又会造成轨电位的升高。因此更有效地优化控制钢轨电位限制装置与排流柜,能有效降低轨电位,减小杂散电流的影响。文章对多区间内两个牵引变电所中两个钢轨电位限制装置与排流柜的投入与否情况下轨电位及杂散电流变化进行分析,优化钢轨电位限制装置与排流柜的配合使用方法。

Reach on the cooperation of potential limiting device and current drainage cabinet

Potential limiting device of rail and current drainage cabinet has been used all over the country in the running of the subway, observing the running subway, the rail voltage always keep high value, which leads to rail potential limiting device to keep the closing state, the stray current leakage increased obviously, the current drainage cabinet need to put into use, and when the drainage counter input exhaust flow, will cause the rail potential rise. Therefore, more effective optimization control of rail potential limiting device and current drainage cabinet, can effectively reduce the rail potential, decrease the effect of stray current. This paper will analyze change of rail potential and stray current two traction substation of two rail potential limiting device of multi interval and input current drainage cabinet with no conditions, optimization of rail potential limiting device use method and with the current drainage cabinet.