基于西安地铁钢轨电位限制装置的研究

摘要

钢轨电位限制装置是地铁牵引供电系统的重要组成部分。本文以西安地铁二号线的钢轨电位限制装置为例，详细论述了其保护的种类、工作原理、各种保护的试验方法，并对两次典型故障进行了分析，详细描述了其现象与处理过程。%Potential limiting device rail is an important part of the metro traction power supply system. In this paper, the rail potential limiting device of Xi'an metro line two as an example, discussed in detail the protection type, working principle, various protection test method, and the two typical faults are analyzed, with detailed description of the phenomenon and process.