Research and Development of Monitoring and Display Terminals for Digital Switchgears at Substation

Medium voltage distribution equipment plays a key role in ensuring reliable operation of electrical systems. Given the rapid development of the electric power industry, new ways to increase the stability and efficiency of electric grids are emerging. In this regard, there is a need to improve the devices used in switchgears at substations. This article examines the creation of a device for monitoring and controlling electrical parameters at a substation using modern data transmission protocols. Among other things, the equipment of a modern substation, data transmission protocols and control and measuring devices are being studied. Attention is also paid to ensuring reliable data backup in the substation’s information network using PRP. A structural and functional diagram of a device combining the functions of monitoring and displaying information, as well as analog data aggregation, is being developed. The article is aimed at creating a device for monitoring electrical parameters at a substation, taking into account the convenience of use and modern data transmission protocols such as IEC-60870-104 and IEC-61850, for data exchange in a SCADA system and with relay protection devices, as well as ensuring reliable data backup in the substation information network via PRP.