SELECTION OF PROTECTION OF POWER EQUIPMENT FOR SMALL AND MEDIUM-SIZED POWER PLANTS
The paper considers the main requirements for the protection of power equipment of power plants based on their capacity. The analysis of the regulatory documentation, on the basis of which the list of mandatory protections for power plants with a capacity of up to 5 MW was compiled, was carried out. An overview of modern relay protection devices that meet the requirements of regulatory documents is also made. The comparative analysis of the devices allowed us to choose the most suitable set of protection of the generator - transformer unit based on the comparison according to the selected criteria.