Description

110 - 500kV Composite-Housed Line Surge Arresters are specialized protective devices designed for high-voltage transmission lines operating within the 110kV to 500kV range. Encased in durable composite housings (typically silicone rubber), they integrate advanced metal oxide varistor (MOV) technology. Installed directly on transmission lines, these arresters serve as a critical defense against overvoltages caused by lightning strikes, switching transients, and other electrical disturbances. By rapidly diverting surge currents to the ground and clamping voltage levels to safe thresholds, they prevent damage to line components, minimize power outages, and ensure the stable and efficient operation of 110 - 500kV transmission networks.

Features

Broad Voltage Compatibility：Tailored to cover the 110kV to 500kV range, these arresters are engineered to match the specific voltage requirements of high-voltage transmission lines. This versatility allows them to provide consistent and reliable protection across various segments of the power grid within this voltage spectrum.

Durable Composite Housing：The composite (silicone rubber) housing offers exceptional performance. It exhibits strong resistance to environmental factors such as UV radiation, extreme temperatures, moisture, and pollution, ensuring long-term stability even in harsh outdoor conditions. Additionally, its lightweight nature simplifies installation and reduces the load on transmission line structures.

High-Performance MOVs：Equipped with high-quality metal oxide varistors, these arresters feature excellent nonlinear resistance characteristics. During overvoltage events, the MOVs quickly conduct large surge currents, effectively limiting voltage spikes. In normal operation, they maintain a high-resistance state, minimizing leakage current and energy loss.

Line-Specific Design：Designed specifically for integration with transmission lines, they have a compact and streamlined structure that fits seamlessly into line configurations. This design ensures minimal impact on line performance while providing optimal protection, making them suitable for both overhead and certain underground transmission line setups.

Superior Surge Handling：Capable of withstanding high impulse currents generated by severe lightning strikes and switching surges. Their robust surge handling capacity ensures that even under extreme electrical disturbances, the arresters can effectively mitigate the impact, safeguarding line insulators, conductors, and other critical components.

Low Maintenance Requirements：The composite housing is resistant to aging and corrosion, reducing the need for frequent maintenance. The MOVs are designed for long-term reliability, with stable performance over extended periods, minimizing downtime and operational costs associated with upkeep.

Compliance with Standards：Adheres to international industry standards such as IEC 60099 - 4 and ANSI/IEEE C62.11, ensuring compatibility with global transmission systems. Compliance with these standards guarantees that the arresters meet strict safety and performance criteria, providing confidence in their operational effectiveness.

Enhanced Grid Reliability：By preventing line tripping and equipment damage caused by overvoltages, these arresters contribute significantly to the overall reliability of the power grid. They help maintain continuous power transmission, reducing the frequency and duration of outages, which is crucial for meeting the demands of industrial, commercial, and residential users.