接触网检修接地装置电流故障检测方法

The Current Fault Detection Method for Contact Network Service Earthing Device

在传统的接地装置的检修中,对于电流故障的检测没有现代化的手段,缺少对于电流故障时暂态特征的分析,导致对于检测结果的精度不高,检测不准确,因此提出接触网检修接地装置电流故障检测方法。首先确定接地装置地网平面布置情况为不等间距排列方式,即可确定其电流排布形式,进而在接地线暂态电流特征中分析故障电路,融合电阻参数检测故障问题,最后对故障区域进行定位,完成对于接地装置电流故障的检测。实验中实验组的平均检测精度为98.55%,而对照组Ⅰ的检测精度为86.92%。对照组Ⅱ的检测精度为85.75%。可以得出检修接地装置电流故障检测方法对于检测精度的提升,可将其推广运用,以提高对故障电流检测结果的准确性。

For the traditional earthing device service,There are not any modernized meaus for current fault detection,it is short of analysis to transient characteristics during eurrent fault,leading to low accuracy to detecting results and inaccuracy,thus proposing the qucurrent fault detection method of the contact network service earthed device.First,determine the plane layout condition of the earthed device as differental gap line way,that is,to determine its current configwration form,thus analyzing fault cirrcuit for the transient current characteristics of the earthed line and mixing the fault problem of resistance parameter detection.Finally,position the fault area,complete the detection of earthed device current fault average dectection precision degree of experiment group is 98.55%,while the detection precision for Group Ⅰ is 86.92%.The dectection precision for Group Ⅱ is 85.75%.The current fault detection method of the service earthed device improves dectection precision,which can be popularized and used,to improve accuracy of fault current detection results.