High-performance surge protection solutions for power distribution and capacitor banks, ensuring grid stability and equipment longevity.
To understand what is metal oxide surge arrester, one must recognize its role as the primary defense in modern power grids. These devices occupy a dominant industry position by utilizing non-linear zinc oxide (ZnO) varistors to divert lightning and switching surges, protecting expensive transformers and capacitors from catastrophic failure.
Our technical advantage lies in the superior non-linear resistance and high energy absorption capacity. By optimizing the ceramic grain structure, we ensure a faster response time and lower leakage current, providing a robust safety margin for high-voltage transmission and control equipment.
Integrating material science and precision manufacturing to ensure zero-failure operation under extreme voltage stress.
Utilizing ultra-pure zinc oxide powders for an optimized non-linear coefficient.
Advanced silicone rubber composites for superior external insulation.
Tight tolerance control on the V-I characteristic curve for safety.
Data-driven evidence of our surge arresters' superiority in energy dissipation and response speed.
Our product range covers various voltage levels, certified for global grid standards.
| Model Series | Rated Voltage (kV) | Nominal Discharge Current (kA) | Energy Class (kJ/kV) | Max Continuous Current (A) | Response Time (ns) |
|---|---|---|---|---|---|
| MOZ-10kV-A1 | 10 | 5 | 1.2 | 200 | < 25 |
| MOZ-24kV-A2 | 24 | 10 | 2.5 | 200 | < 25 |
| MOZ-36kV-B1 | 36 | 10 | 3.0 | 300 | < 30 |
| MOZ-66kV-C1 | 66 | 20 | 4.5 | 500 | < 30 |
| MOZ-110kV-D1 | 110 | 10 | 6.0 | 500 | < 35 |
| MOZ-220kV-E1 | 220 | 10 | 8.0 | 1000 | < 40 |
| MOZ-330kV-F1 | 330 | 10 | 10.0 | 1000 | < 40 |
| MOZ-500kV-G1 | 500 | 10 | 12.0 | 2000 | < 45 |
Note: Custom specifications are available upon request. All units are tested under IEC 60099-4 standards to ensure maximum operational safety.
Real-world success stories where our surge arresters prevented massive grid downtime.
Deployed 220kV MOZ series to protect main transformers from lightning surges in alpine regions.
Installation of specialized polymer arresters in high-dust, high-temperature desert environments.
Applied hydrophobic polymer housings to combat salt-mist corrosion in offshore wind farms.
Optimized surge protection for traction substations to prevent switching transients from damaging electronics.
Implemented high-energy absorption MOZ arresters to handle extreme industrial transients.
Integration of low-voltage surge protection for sensitive PLC and control equipment.
Our metal oxide surge arresters are engineered for the most demanding electrical environments worldwide.
Protecting high-power motors and smelting equipment from operational transients.
Explosion-proof surge protection for critical fuel delivery systems.
Chemical-resistant housing for corrosive industrial atmospheres.
Protecting city power grids and underground cable terminations.
Securing airport radar and communication towers against strikes.
The gold standard for grid-wide transformer and capacitor protection.
Every unit is subjected to lightning impulse tests to verify the clamping voltage and energy absorption capability.
Using vacuum-sealed technology to prevent moisture ingress into the ZnO elements, extending lifespan.
Comprehensive aging tests under cyclic electrical stress to guarantee a 30-year service life.
Our quality management system is strictly aligned with international power engineering standards.
Expert answers to common technical and commercial inquiries regarding surge protection.
Unlike older silicon carbide arresters, what is metal oxide surge arrester technology provides a much faster response time and a significantly higher non-linear coefficient, which allows for a lower protective level and better protection of equipment.
The rated voltage should be chosen based on the maximum continuous operating voltage (MCOV) of your system. It must be high enough to prevent conduction during normal operation but low enough to trigger during a surge.
With proper installation and environmental protection, our high-grade polymer MOZ arresters typically last between 25 to 30 years, depending on the frequency and magnitude of surge events.
Yes, our polymer housing series is specifically designed with hydrophobic silicone rubber and optimized shed profiles to prevent salt-layer accumulation and flashovers in coastal environments.
Absolutely. We can customize the volume of the ZnO discs to increase the energy absorption class (kJ/kV), ensuring protection for heavy industrial equipment like arc furnaces.
MOZ arresters are virtually maintenance-free. However, we recommend annual visual inspections of the housing and periodic leakage current measurements to ensure optimal health.
Don't let transient surges compromise your expensive equipment. Get expert engineering support and industry-leading surge arresters tailored to your specific voltage needs.
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