Product Features

This arrester provides reliable insulation‑coordination protection for transformers, motors, instrument transformers and switchgear against lightning impulse and operating impulse over‑voltage, equipped with advanced zinc‑oxide resistor core to realize fast steep‑wave response and high discharge capacity, while gap‑type versions adopt self‑blowout gap structure to lower discharge dispersion and impulse coefficient. Its polymeric composite housing brings advantages of small dimension, light weight, anti‑pollution, maintenance‑free, explosion‑proof and shock‑resistant performance, complying with IEC international standards and Chinese national standards GB11032, JB/T8459, JB/T9672, DL/T620. Multiple structure types including gap‑free, series‑gap and parallel‑gap designs are available, together with diverse application variants covering station‑type, line‑type, motor‑type, railway‑type and plateau‑type to fit different project scenarios. It works stably under normal service conditions of ambient temperature ‑40℃ ~ +40℃, altitude ≤2000m, power frequency 50/60Hz, seismic intensity ≤Ms7 and max wind speed 35m/s, and special‑spec units can be customized for high‑pollution, high‑altitude, tropical or corrosive‑gas environments.