一种列车浮地系统绝缘检测方法的研究

Research on Insulation Detection Method of Train Floating System

为了解决目前列车浮地系统远端绝缘下降报警不够准确及正负线对地绝缘性能同时下降时不能报警的问题,提出了一种新的中性点接地检测法,经过对列车漏电等效电路的分析,详细描述了检测方法的原理及实现过程,经过理论推导及实物验证,该方法可有效解决远端绝缘下降报警不够准确及正负线同时下降时不能报警的问题。

In order to solve the problem that the remote insulation drop alarm of the current train floating system is not accurate enough and the insulation performance of the positive and negative lines to the ground drops at the same time,the alarm cannot be alarmed.This paper proposes a new neutral point grounding detection method.The analysis of the equivalent circuit describes the principle and implementation process of the detection method in detail.After theoretical derivation and physical verification,this method can effectively solve the problem.