SXD200 feeder terminal is a new type of remote terminal equipment developed based on the latest development needs of distribution network automation, drawing on new achievements in computer technology, digital signal processing technology, and power grid fault detection technology research. Its design, manufacturing, and inspection fully adopt international IEC standards and relevant national standards, and the product is suitable for 10KV feeder monitoring and control. In addition to telemetry, remote signaling, remote control, and remote pulse functions, it also has the ability to capture fault signals (phase to phase short circuits, single-phase grounding, etc.). Combined with primary switches (circuit breakers, load switches, reclosers, etc.) and networked with the main station of the distribution community (or distribution main station), it can complete fault diagnosis of 10KV feeders, isolation of fault sections, network reconstruction, and normal power supply of non fault sections.