Simulation Training Models for an Automatic Transfer Switch and Relay Protection

The paper presents simulation training models for visualizing the processes in electricity systems. For electrical medium voltage networks, voltages and currents are visualized to study the behavior of relay protection, automatic reconnection, and user backup in Matlab Simulink environments. Standard and custom developed library blocks are used, with user-defined definition. The created blocks allow to get acquainted with the standard functionalities of modern relay protection. An opportunity to improve the quality of education through computer visualization is presented.