A New Method For Fault Section Location Based on Zero-Mode Of Fault Current Phase

When there is a single-phase fault appearing in an indirect grounding electric power system, in order to quickly locate the ground fault section. So here, a new method is proposed which is based on the oringinal localization algorithm. The method of phase section positioning is based on the zero mode of current's phase, when the fault is in this section, there is an opposition before and after the detection point. The simulation model was built by MATLAB, and the simulation conclusion are same as the theoretical proof.