An Optimized Solution for Fault Detection and Location in Underground Cables Based on Traveling Waves

Faults in the power system affect reliability, safety, and stability. Power-distribution systems are familiar with different faults that can damage overall performance of entire system, from which they need to be effectively cleared. Underground more complex require extra accuracy fault detection location for optimum management. Slow processing unavailability a protection zone relay coordination concerns location, as these reduce power-protection systems. In this regard, article proposes an optimized solution framework underground cables based on discrete wavelet transform (DWT). The proposed model supports area detection, identification faulty sections, location. To overcome abovementioned facts, we optimize overcurrent timing relays. has two sequential stages current time at it optimizes settings connected relays through Newton–Raphson analysis (NRA). Moreover, traveling times DWT modeled, relate provided by coordination, line is identified not overlapped. was tested 132 kV/11 kV 16-node networks cables, obtained results show detect locate cable’s speedily, detects 0.01 s, accurate MATLAB/Simulink (DigSILENT Toolbox) used establish network detection.