220kv Substation Composite Porcelain Surge Arrester with Voltage Equalization Ring

Lugao's 220kV porcelain-insulated Surge arresters are core overvoltage protection devices in ultra-high voltage power systems, designed for ultra-high voltage transmission lines and power plants. They suppress lightning surges and switching overvoltages, protecting transformers, circuit breakers, and other critical electrical equipment from damage. Lugao uses ultra high strength porcelain as the outer insulation, which offers exceptional mechanical bending and torsional strength, capable of withstanding extreme mechanical and electrical stresses in environmental conditions, making it suitable for outdoor and hig -altitude environments. The arrester incorporates a multi column, paralle connected, high performance zinc oxide stub assembly, providing exceptional energy absorption capacity. The overall structure is fully sealed and equipped with explosion-proof devices and a pressure relief mechanism to ensure safe discharge in the event of a fault, preventing equipment explosion.

Each arrester undergoes lightning surge withstand, switching shock, and sealing performance tests. Lugao provides complete 220kV arrester solutions, customizing specific arresters and providing on site installation guidance.

220kV porcelain Surge arresters Technical Specifications

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