Failure detection system for high-pressure power transmission line

The utility model relates to a failure detection system for a high-pressure power transmission line, which comprises a failure analysis server and a detection device arranged on each detection point of the three-phase high-pressure power transmission line and used for measuring parameters on the detection point. The detection device consists of a first detection point device and two second detection point devices, wherein the first detection point device is arranged on a B-phase line of the three-phase high-pressure power transmission line; the two second detection point devices are respectively arranged on a A-phase line and a C-phase line of the three-phase high-pressure power transmission line and used for transmitting detected data to the first detection point device; and the first detection point device is used for transmitting the detected data and the data transmitted by the second detection point devices to the failure analysis server. The utility model greatly improves the personnel efficiency, reduces the labor intensity, shortens the failure clearing time, reduces the industrial and agricultural production loss caused by the failure of the power transmission line and can provide auxiliary data for the power transmission line as an objective third party line.