XXX Power Supply Company of Southern Power Grid

During daily inspections, users found partial discharge problems in two clamp positions on the line using acoustic imaging equipment. The fault point is about 100 meters away from the ground, and the signal attenuation is large. The traditional far Ultrasonic testing method can only find that there is a partial discharge fault at this location, and cannot distinguish the specific location. Actually, there is already a situation of partial discharge here. At present, continuous tracking is being conducted on this point, and maintenance is planned for the next planned power outage.