Digital relay protection complex testing method development for electric power equipment

Abstract

The article describes the digital relay protection devices features for electric power equipment. A technical description is given and the main conclusions of the test operation of the Digital Substation software and hardware complex are presented. A method for simulation modeling of a decentralized relay protection system with digital protocol communication is proposed. The presented model takes into account the layout of the real complex of protection. The model can be used when checking the correctness of the functioning of existing devices. The method can be used to build new digital protection algorithms that comply with IEC61850.