Enhancing Power System Resilience: An Analysis of Novel Arc Suppression Device Technology in Mitigating Single Line to Ground Faults

This paper addresses the issue of single line to ground faults (SLG) in power cables connected between two delta side transformers. These faults lead to overvoltage in the phase voltage and grounding the cable result in high arc current, potentially damaging the cable. To mitigate these effects, the use of an Arc Suppression Device (ASD) is proposed. The ASD is designed to decrease both the arc current and the impact of single phase overvoltage. A case study of a four-bus system, simulated using MATLAB Simulink, is presented to demonstrate the effectiveness of the ASD technology in reducing the impact of SLG faults. The ASD operates by injecting voltage (Zero Sequence Voltage) into the earth path, thereby decreasing the ground fault and enhancing power system resilience. The results demonstrate that this approach effectively maintains power quality during a fault, improves power system reliability, and extends the lifespan of cables and transformers.