Applied in the field of overhead line fault location, the externally applied signal type distribution line fault indicator is a distribution automation product integrating wireless radio frequency communication, small current power acquisition, low power consumption and other technologies. This product solves the problems of short circuit fault detection of overhead lines and single-phase grounding positioning, and has the real-time monitoring function of line load. In combination with the signal source, the signal injection method has greatly improved the accuracy of single-phase grounding fault location. The acquisition unit is designed in suspension type and has the function of self-powering, which has a wide range of applications.
