Abstract:In order to solve the problems of the real-time detection, the high energy consumption and the low accuracy of the telemetry terminal hidden fault detection system, a design of a hidden fault detection system for the telemetry terminal of distribution network is proposed. Through the analysis of the hidden fault detection system of remote terminal hardware frame of hardware, electrical parameter measurement unit, wireless communication unit, clock unit, temperature acquisition unit and power supply unit and other parts of the system are improved, the optimization software part of the main program, data acquisition program and fault detection program, complete the design of power distribution automation remote terminal hidden fault detection system the. The experimental results show that the system has high accuracy, good real-time performance and low energy consumption for detection of hidden faults.