The development of the impedance measured by distance relay

This paper explains the possibility of implementation of a model of a quadrilateral characteristic type of distance relay with the zones using MATLAB/SIMULINK package. SimPowerSystem was used to present modeling of distance relay. The quadrilateral R-jX plain was created to show the trajectory of measured impedance using the distance relay. The relay identifies the fault locations as expected. The impedance path reflects to the power system model under fault conditions. The goal of this paper is to describe the building and designing distance relay characteristic using Simulink model, inside the modeling, impedance calculation, zone coordination were designed