Multi-serial-port shunting device for remote terminal unit of transformer substation

Abstract

According to an integrated requirement of a power grid dispatching automation system, a transformer substation is required to be simultaneously connected into multiple dispatching automation systems,and the transformer substation can be monitored by the dispatching automation systems. However, remote terminal units used by some transformer substations do not have enough interfaces, and cannot besimultaneously connected to the multiple dispatching automation systems. Therefore, a serial port shunting device for a remote terminal unit of a transformer substation is designed, and is used for providing shunting sharing and switching of channels for exchanging telecontrol information between the remote terminal unit and a plurality of dispatching automation system main stations in a transformer substation automation system, so that the remote terminal unit can exchange data with the plurality of dispatching automation system main stations at the same time, and dispatching tasks of the transformer substation at the plurality of main station ends are completed. The shunting device has an indicator lamp for displaying a working state of the shunting device and a data transmission condition of each channel, and has a configuration function capable of configuring working modes, serial port parameters and the like of the shunting device, so as to meet requirements of different transformer substations.

Description

technical field [0001] The invention relates to the field of electric power system telecontrol communication technology, more specifically, it is a multi-serial port intelligent switching branch device supporting multiple telecontrol protocols for communication between a substation telemotor and multiple dispatching automation master stations. Background technique [0002] According to the integration requirements of the power grid dispatching system, the existing dispatching automation system needs to be transformed and upgraded, that is, the remote generator of the substation needs to be connected to the new ground dispatching and standby dispatching master station system through the dispatching data network, so that the three dispatching master stations can simultaneously Monitor the health of substations. This requires that the substation remote machine has multiple interfaces and can communicate with multiple master stations at the same time, but the existing site remot...

AI Technical Summary

Problems solved by technology

This requires that the substation remote machine has multiple interfaces and can communicate with multiple master stations at the same time, but the existing site remote machine cannot provide enough interfaces, resulting in the inability of the substation remote machine to connect to multiple dispatching master stations at the same time. Substation remote motor, the cost is too high, the construction is difficult, and the substation remote motor has not exceeded the service life

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