Double-end traveling wave fault positioning method and system based on ground potential end transient current

• Main Authors: WANG CHEN, LAN RIFENG, LI CHENGXIN, ZHOU YU, WEI JIYI, LIU GUOWEI
• Format: Patent
• Language: Chinese; English
• Published: 03.04.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a double-end traveling wave fault positioning method and system based on ground potential end transient current, and the method comprises the steps: installing a plurality of monitoring terminals at the ground potential end of a power transmission line iron tower at intervals, and enabling the monitoring terminals to monitor ground potential traveling waves on the power transmission line iron tower; and obtaining the position of the fault point according to the time difference of the ground potential traveling wave heads monitored by the two adjacent monitoring terminals. The double-end traveling wave fault positioning method based on the ground potential end transient current is very convenient in the aspects of installation and maintenance and has obvious advantages. 本发明公开了一种基于地电位端暂态电流的双端行波故障定位方法及系统，所述方法包括步骤：在输电线路铁塔的地电位端间隔安装多个监测终端，所述监测终端监测输电线路铁塔上的地电位行波；根据相邻两个监测终端监测到地电位行波波头的时间差，得到故障点的位置。本发明的基于地电位端暂态电流的双端行波故障定位方法，在安装维护方面非常方便，具有明显优势。