Introduction - If you have any usage issues, please Google them yourself
A distance protection simulation model of transmission line was established by using Simulink and
SimPowerSystem toolbox inMatlab. S-function was used to programe the distance protection of phase faults and earth
faults and the relevantprotectionmodelswere created to build distance protection.The simulation results show that the
three-stage distance protectionmodel can respond to allkinds of faultswithin protection zones correctly and send correct
signal to the breaker of the line.