长园科技集团股份有限公司

Outdoor transmission lines are highly susceptible to natural factors such as lightning, pollution, and wind-induced vibration, which can cause tripping accidents. Timely and accurate identification of the fault point and repair of the line is an essential task in line operation and maintenance. The system generally consists of three parts: monitoring terminals, a central station, and a user system. The monitoring terminals installed at both ends of the line collect information such as power-frequency current and traveling-wave current and send it wirelessly in real-time to the central station for fault diagnosis. The diagnosis results are provided to users via web and SMS, thereby achieving fault section location, precise fault location, fault cause identification, and lightning characteristic monitoring. 

The product is applicable to AC and DC transmission lines with voltage levels of 35 kV and above, and is widely used in scenarios such as "three-crossing" lines (crossing high-speed railways, highways, and important corridors), locally-managed lines, DC transmission lines, T-connected lines, and mixed-structure lines.