YH5WCX-51/134E Composite Zinc Oxide Arrester | AC Line Lightning Protection
YH5WCX-51/134E Composite Zinc Oxide Arrester is designed to provide reliable lightning and overvoltage protection for 10kV–220kV AC transmission and distribution lines. It uses a composite housing and zinc oxide (ZnO) varistor technology to limit lightning-induced overvoltage and help reduce insulation flashover and lightning-related line trips.
The arrester features a lightweight, moisture-resistant, and mechanically durable design, making it suitable for suspension or customized installation on transmission towers. It is well suited for mountainous, coastal, heavily polluted, and high-grounding-resistance areas, helping improve the safety and stability of overhead power transmission systems.
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This Organic Composite-Housed Zinc Oxide Line Arrester is designed for 10kV–220kV AC overhead transmission and distribution systems, providing effective protection against lightning overvoltage and other transient overvoltage conditions. Installed in parallel with insulator strings, it helps limit excessive voltage across the insulation and improve the lightning withstand performance of transmission lines.
The arrester is primarily installed in a suspension configuration on transmission towers, with pole-mounted configurations also available. By reducing the impact of lightning-induced overvoltage, it helps lower lightning-related flashover and line-tripping risks, supporting safer and more stable operation of overhead power networks.
The product adopts an organic composite housing and zinc oxide (ZnO) varistor technology, providing reliable nonlinear voltage-limiting characteristics together with a lightweight and weather-resistant external structure. Applicable designs can be manufactured and tested according to relevant IEC 60099 series requirements for metal-oxide surge arresters used in AC power systems and overhead lines.
Model and Meaning
Operating Conditions
1. Altitude: ≤ 2000 meters;
2. Ambient Temperature: -40°C to +40°C;
3. Maximum wind speed: ≤ 35m/s;
4. Seismic intensity: areas with 7 degrees or below;
5. The arrester allows normal swing, and suspension or pile-mounted installation can be flexibly selected according to the tower type.
Product Features
- Integrated Molding & Reliable Sealing
The arrester adopts an integrated molding structure with a specialized internal design, providing excellent sealing performance and strong resistance to moisture ingress. The robust construction also supports reliable pressure-relief and safety performance under abnormal operating conditions. - Efficient Heat Dissipation & Strong Overvoltage Protection
Its optimized structure provides good heat dissipation and strong energy absorption capability. The zinc oxide varistor elements respond quickly to transient overvoltage, helping protect transmission-line insulation against lightning and switching overvoltage. - Compact, Lightweight & Mechanically Durable
The compact organic composite housing reduces overall weight and simplifies transportation and installation. Its high mechanical strength and impact resistance help minimize the risk of damage during handling, transportation, and field installation. - Suitable for Demanding Transmission-Line Environments
The arrester is suitable for transmission lines with low lightning withstand levels or high lightning-related trip rates, as well as:- Arid and mountainous areas with relatively low rainfall
- Towers with high grounding resistance
- Long-span transmission structures and river-crossing towers
- Locations exposed to high operating overvoltage
- Applications requiring additional overvoltage protection near substation incoming lines
- Heavily polluted environments where reliable insulation and lightning protection are required
Overall, the product provides a compact and lightweight lightning protection solution for 10kV–220kV overhead AC transmission and distribution lines, helping improve line lightning performance and reduce lightning-related outages.
Overall and mounting dimensions(mm)
