Analysis of two fault locators considering operation variations of the power distribution systems

This paper presents a comparative efficiency of two fault location methods considering different operating conditions of the power distribution system. The methods here proposed use parameters of the power system in nominal steady state condition and available measurements at the distribution substation during fault and pre-fault. The tests were performed on the IEEE 34 bus system with different fault resistances and variations of several parameters of the power distribution systems. These methods help improve the continuity index in power distribution systems by determining the distance to the fault. The absolute error has been used to evaluate the efficiency of each method and its subsequent comparison.