摘  要：电气化铁道供电牵引网的供电方式主要有直接供电、AT供电和BT供电方式三种方式。近年来，全并联运行方式也逐渐应用到我国电气化铁路中。本文主要对我国电气化铁道接触网在不同供电方式下采用的故障测距办法进行综述，并且对利用行波进行故障测距的方法进行了讨论。

关键词：牵引网；故障测距；直接供电；AT

Abstract:The modes of power traction network is various, such as direct mode, BT(booster-transformer) mode and AT(auto-transformer) mode. In recent years, all over parallel connection is adopted gradually. The paper generalizes in briefly the principal of fault location of power traction network on elec