Real-time accurate distance measuring device for local discharge waves of electric power line

The utility model discloses a real-time accurate distance measuring device for local discharge waves of an electric power line. The real-time accurate distance measuring device comprises a plurality of monitoring modules, an AD conversion circuit and a data processing circuit, each monitoring module comprises a partial discharge monitoring sensor, a sampling circuit, a filter circuit, a signal conditioning circuit and a voltage following circuit which are connected in sequence; the plurality of partial discharge monitoring sensors are distributed on an electric power circuit and are respectively in electromagnetic or capacitive coupling with the electric power circuit; the plurality of voltage follower circuits are connected with the input end of the multi-channel AD conversion circuit, and the output end of the AD conversion circuit is connected with the data processing circuit. According to the utility model, sampling, filtering, conditioning and following processing are carried out on partial discharge sig