Surge Arrester Outdoor Polymer-Housed Lightning Arrester

Our Surge Arrester series provides reliable over‑voltage protection for overhead lines, substations, and industrial installations. It uses a metal oxide varistor (MOV) element to clamp lightning and switching transients, protecting transformers, switchgear, and sensitive equipment. Available in porcelain‑insulated or polymer‑housing designs, each arrester meets IEC 60099‑4 standards and undergoes rigorous impulse and thermal testing to ensure durability in the harshest environments.

Description

High Energy Absorption: MOV stacks sized for surges up to 200 kA (8/20 μs) repeatedly without performance degradation.
Wide Voltage Coverage: Models for continuous operating voltages (Uc) from 11 kV through 500 kV, with tailored protective levels to match system requirements.
Robust Housing Options:
- Porcelain Body: Exceptional UV and pollution resistance—ideal for desert, coastal, and industrial zones.
- Polymer Housing: Lightweight, hydrophobic surface sheds moisture and contamination, reducing leakage current in humid climates.
Monitoring & Safety: Optional built‑in failure indicator or remote monitoring sensor for real‑time health status.

Usage Scenarios

Overhead Transmission Lines: Directly mounted on line towers at 110 kV, 220 kV, and 500 kV voltage levels to intercept lightning strikes.
Distribution Substations: Installed on busbars and incoming feeders (11 kV–66 kV) to protect transformers and switchgear in urban and rural substations.
Industrial Plants: Protects motor control centers, PLC panels, and critical process equipment against switching surges in manufacturing facilities.
Renewable Energy Installations: Deployed at wind‑turbine nacelles and solar inverters to safeguard power electronics from frequent lightning exposure.
Critical Infrastructure: Secures telecom towers, data centers, and water treatment plants from transient over‑voltage events.