馈线保护终端是一种安装在馈线上的智能终端设备，主要用于配电自动化系统中，对柱上开关进行监控，完成遥测、遥控、遥信，故障检测功能，并与配电自动化主站通信，提供配电系统运行情况和各种参数即监测控制所需信息，包括开关状态、电能参数、相间故障、接地故障以及故障时的参数，并执行配电主站下发的命令，对配电设备进行调节和控制，实现故障定位、故障隔离和非故障区域快速恢复供电功能。馈线保护终端通常采用高性能单片机制造，为了适应恶劣的环境，应选择能工作在75℃的工业级芯片，并通过适当的结构设计使之防雷、防雨、防潮。

馈线保护终端的功能主要包括：

1. 遥测功能：实时监测断路器的状态以及线路运行状态，并可以通过FTU实现对线路的自动化保护功能。
2. 遥控功能：在配电子站的监控下，馈线保护终端可以接受配电子站的控制命令，对配电设备进行控制和调节。
3. 遥信功能：馈线保护终端可以通过FTU实现对线路的自动化保护功能，并将相关数据发送到配电子站，相关技术人员在后台就可以随时查看相关数据。
4. 故障定位、故障隔离和非故障区域快速恢复供电功能：馈线保护终端可以在发生故障时，通过故障定位、故障隔离技术，快速找到故障点，并隔离故障区域，同时恢复非故障区域的供电。

总的来说，馈线保护终端是一种智能化的配电设备，具有自动化、高效、可靠、安全等优点，在城市、农村、企业配电网的自动化工程中有着广泛的应用。

Feeder protection terminal is an intelligent terminal device installed on the feeder line, which is mainly used in the distribution automation system to monitor the switch on the column, complete the functions of telemetry, remote control, remote communication and fault detection, and communicate with the distribution automation master station to provide the operation of the distribution system and various parameters, that is, the information required for monitoring and control. It includes switch status, power parameters, interphase fault, ground fault, and fault parameters, and regulates and controls the distribution equipment by executing the commands issued by the power distribution master station to realize fault location, fault isolation, and quick power recovery in non-fault areas. The feeder protection terminal is usually made of high-performance single-chip microcomputer, in order to adapt to the harsh environment, industrial grade chips that can work at 75 ° C should be selected, and through appropriate structural design to make it lightning, rain and moisture proof.

The functions of the feeder protection terminal include:

Telemetry function: real-time monitoring of the status of the circuit breaker and the running status of the line, and can achieve automatic protection of the line through FTU.
Remote control function: Under the monitoring of the electronic distribution station, the feeder protection terminal can accept the control commａnd of the electronic distribution station to control and adjust the distribution equipment.
Remote message function: the feeder protection terminal can realize the automatic protection function of the line through FTU, and send the relevant data to the distribution station, and the relevant technical personnel can view the relevant data at any time in the background.
Fault location, fault isolation, and quick power recovery in non-fault areas: When a fault occurs, the feeder protection terminal can use fault location and fault isolation technologies to quickly locate the fault, isolate the fault area, and restore power to the non-fault area.

In general, feeder protection terminal is an intelligent distribution equipment, with automation, high efficiency, reliability, safety and other advantages, in the urban, rural, enterprise distribution network automation engineering has a wide range of applications.