About trends in the development of relay protection on the database of patents for inventions

The statistics of the distribution of the number of patents for inventions of the Russian Federation according to subclass H02H 3/08, depending on the protective parameter, by type of element base is considered. Maximum interest was shown in overload protection and protection aimed at detecting an emergency mode. During both periods of analysis, for 2017-2019 and for 2020-2022, in the second period for different two-year periods of time, there was a slight increase in interest in protections aimed at detecting an emergency mode. There was a slight increase in the share of the microprocessor element base in the period 2020-2022 compared to the previous period. Also, when considering the statistics on the element base, a restriction was introduced on the type of patent owner - only individuals, not legal entities, were taken into account.