Overcurrent relay coordination of 154/34,5 kV Hasançelebi substation by league championship algorithm

In this study, non-directional overcurrent relay coordination was done in 154/34.5 kV Malatya Teiaş Hasançelebi transformer centre using League Championship Algorithm (LCA). Standard inverse time characteristic based on IEC 255-3 is used for the relay is coordinated. The results obtained by the LCA have been used in virtual model, obtained by DigSilent software for overcurrent relays at the Hasançelebi transformer centre. Then, the overcurrent relay coordination was performed by examining the response of the overcurrent relays to the 3-phase fault currents generated in the model.