通过分析杭州东站的供电现状,同一般AT供电区段作了比较。为便于故障测距分析,从电路拓扑结构上可将其化简成通常的AT供电模式,根据故障测距原理,即可将故障测距值的大小分成三种情况来分析,为区分故障点的所在区段,准确判断和查找故障点提供了依据。 By analyzing the power supply status of Hangzhou East Railway Station, the same general power supply section is compared. To facilitate the fault location analysis, from the circuit topology can be reduced to the usual AT power supply mode, according to the principle of fault location, fault size can be divided into three sizes to analyze the size of the fault point Where the section, accurately determine and find the point of failure provides the basis.