Program for Single-Phase Ground Fault Identification with EMTP Simulation Data

In China, distribution networks generally adopt neutral-point non-effectively grounded methods, which are commonly referred to as small-current grounding systems. However, fault line selection has consistently remained one of the challenging issues both domestically and internationally. To address this problem, we provide a program for identifying single-phase ground faults that utilizes EMTP simulation results as input data. The program implements signal processing algorithms to analyze transient zero-sequence currents and employs comparison logic to identify faulty lines. Furthermore, through in-depth research on the fault line selection process, we can further refine this program to enhance its accuracy and reliability. Notably, this work holds significant importance for the safe operation and reliability of distribution networks. Therefore, continued research and exploration are necessary to improve the technical level and competitiveness of China's distribution networks.