XHKJ-2000 Overhead Line Fault Location System

Introduction

     Overhead line grounding faults are frequent and hidden，which often consumes a lot of manpower and time to patrol the line to find the fault point. The grounding line selection device can only select the line but cannot locate it. The traditional location device needs to mount the pole and hook the sensor to find the fault by section, which is cumbersome. XHKJ-2000 dual-mode intelligent overhead line fault location system innovatively adopts high-order harmonic space vector technology, which can locate the fault point within two hours without power failure; adopts new low-frequency AC mode, after a power failure, it will inject AC signals to the circuit to reproduce the line operation and fault conditions. The receiver receives signal under the line, then measures and analyzes its amplitude and phase under GPS synchronization. The signal characteristics before and after the fault point will be quite different, so as to achieve fault segmentation and location. No longer need to mount the pole to hook up the sensor, the fault location has never been easier.