遂渝线无砟轨道综合接地系统钢轨电位及电流分布的分析

研究目的:结合遂渝线无砟轨道综合接地系统,对无砟轨道钢轨电位及电流分布进行分析计算,并得出相应的结论。研究结果:在回流系统无回流线和综合地线或有回流线无综合地线的情况下,钢轨电位将超过或接近120 V。因此,在对地泄露电阻较高的无砟轨道区段,应当在回流系统中进一步设置金属性回流通路(综合地线),以降低钢轨电位和接触电势。

Analysis of Rail Potential and Current Distribution of Integrated Earthing System for Ballastless Track of Sui-Yu Railway Line

Research purposes:Combining with the Sui-Yu railway's ballastless track integrated earthing system,this paper calculated and analyzed the ballastless track's rail potential and return current distribution, and at last got the conclusion. Research results:while return current wires and integrated earth bus do not establish in the return current system,or only the return current wires establish,the rail potential would achieve or exceed 120V.Therefore, in the ballastless track section with high leak resistance,we should reduce the rail potential and contact potential.And the metallicity return circuit (integrated earth bus) should be established in the return current system.