Assessment of Various Technologies Influence to Reduce the Impact of Single-Phase Earth Faults in Distribution Systems with an Isolated Neutral

This paper presents a comprehensive study on the mitigation of single line to ground faults (SLG) in modern electricity distribution networks, focusing on the use of Active Arc Suppression Devices (AASDs) and Peterson coils. The study evaluates six distinct grounding scenarios within a four-bus power system, ranging from conventional grounding to the deployment of advanced devices. The results highlight the ability of AASDs to reduce fault currents and the potential of Peterson coils to introduce stability challenges. The paper provides an in-depth analysis of voltage behavior, fault currents, zero voltage components, load currents, and ground currents, offering valuable insights into the efficacy of arc suppression devices and Peterson coils in enhancing power system resilience. The findings contribute to the refinement of fault mitigation techniques and the enhancement of distribution network reliability.