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24kV S、Z Type
YUANKY
America, Europe, Britain, Australia, Southeast Asia, Philippines, I, Africa, French, Arabic
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.
Technical Parameters
Code Segment | Description |
|---|---|
YH | Polymeric housed insulation, metal oxide valve element |
Structural feature | W‑without gap; C‑series gap; B‑parallel gap |
Nominal discharge current | kA |
Operating places | S‑distribution type; Z‑power‑station type; L‑DC type; X‑line type; F‑GIS type; O‑oil type; R‑capacitor type; D‑motor type; T‑railway type |
Rated voltage of arrester | kV |
Max residual voltage under nominal discharge current | kV |
Additional characteristic symbol | G‑plateau type; W‑anti‑pollution type; K‑shock‑proof type; T‑moist‑heat type |
