| العلامة التجارية | ROCKWILL |
| رقم النموذج | 330 - 1000 كيلوفولت مركب - مضمن أكسيد المعدن لمكافحة الصواعق |
| الجهد المقنن | 420kV |
| التردد المقنن | 50/60Hz |
| سلسلة | YH20W |
Protective devices engineered for ultra-high-voltage (UHV, 330kV إلى 1000kV) power transmission and transformation systems. Deployed in UHV substations, long-distance transmission lines, and alongside core equipment (e.g., transformers, gas-insulated switchgear), these arresters utilize advanced composite (typically silicone rubber) housings integrated with high-performance metal oxide varistors (MOVs). Their primary role is to suppress transient overvoltages triggered by lightning strikes, switching operations, or grid faults. By diverting excessive surge currents to the ground and maintaining stable voltage levels during normal operation, they safeguard the reliability of 330-1000kV UHV power grids, preventing equipment damage, unplanned outages, and ensuring the seamless transmission of large-scale electrical energy.
المعلمات