Power intelligent devices usually do not have too many communication ports and do not realize complex communication functions. In order to manage many intelligent devices in the substation, a special communication device IEC61850 protocol converter is generally used to interconnect various devices to realize data exchange between different devices.

        The protocol converter has many different types of communication interfaces, which can access a variety of intelligent devices and realize the protocol conversion between them.

        The protocol converter can realize the collection of analog quantity, digital quantity, fault action and other information of microcomputer protection device, realize the operation control of primary equipment circuit breaker, knife switch, etc., and carry out data communication with intelligent equipment such as AC / DC panel, temperature and humidity controller, insulation on-line monitoring device and fault recording device, Collect all information to the background monitoring machine to realize unified and centralized management. Forward the collected equipment data to the dispatching center according to the format of telecontrol protocol, and forward the command of the dispatching center to the corresponding equipment. According to the requirements of the dispatching center, single channel, main and standby channels and other communication forms shall be realized.