Evaluation of Technical Consequences of Line Arresters instead of Shield Wires on HV Overhead Transmission Lines

Ensuring the reliability of overhead transmission lines and reducing outages is of utmost importance in the power industry. Lightning strikes and back flash-over incidents are significant contributors to disruptions in service. While shield wires have traditionally been used to mitigate the impact of lightning, they have limitations, particularly in high-risk areas or specific tower configurations. Some experts advocate for the use of line surge arresters as a more effective solution. this study delves into the application of line surge arresters to enhance the reliability and performance of overhead transmission lines in the face of lightning strikes and other electrical disturbances. Line surge arresters are engineered to redirect excess voltage away from the transmission lines, thereby decreasing the likelihood of damage from lightning strikes. by incorporating these devices, utilities can bolster the resilience of their infrastructure and reduce downtime resulting from electrical disturbances. this proactive approach not only leads to cost savings but also elevates customer satisfaction. the utilization of EMTP and DIgSILENT software has been instrumental in conducting simulations for this study.