South Africa’s power equipment is chronically exposed to harsh natural environments, especially in coastal areas where salt spray pollution is severe, with conductivity levels reaching as high as 2000 μS/cm. According to IEC 60815 standards, this is classified as a “very severe” pollution level. Statistics show that at least 70% of line tripping incidents are related to the degradation of insulator performance. However, the use of tested reclosers can significantly reduce flashover incidents caused by environmental pollution.

By increasing the number of reclosers, customers can effectively reduce the area affected by power outages. The system is capable of automatically clearing transient faults and achieving precise location and isolation of permanent faults. This not only significantly reduces the workload of line inspections but also greatly lowers the costs associated with manual inspections and maintenance.

The reclosers adopted in South Africa represent an excellent distribution network automation solution, providing a high-quality option for local distribution network upgrades and renewable energy grid integration projects.