For the traditional earthing device service,There are not any modernized meaus for current fault detec-tion,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 detec-tion 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 de-tection method of the service earthed device improves dectection precision,which can be popularized and used,to improve accuracy of fault current detection results.
维普
万方数据