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Understanding High Voltage Surge Arresters
Electrical networks face constant threats from transient overvoltages due to lightning strikes, switching operations, and grid fluctuations. The HY5WZ-51-134 High Voltage Surge Arrester is specifically engineered to mitigate these risks, ensuring stability and longevity for power distribution systems.

Unique Features of HY5WZ-51-134
- Optimized Metal-Oxide Varistor (MOV) Technology: Provides rapid response to voltage surges with excellent energy absorption.
- High Mechanical Strength: Designed for outdoor installations in extreme weather conditions.
- Non-Fracturing Polymer Housing: Ensures safety and durability with excellent resistance to moisture and UV radiation.
- Efficient Thermal Dissipation: Prevents overheating and extends operational life.
- Low Residual Voltage: Protects sensitive electrical equipment by maintaining a stable system voltage.
Technical Specifications
Parameter | Value |
---|---|
Model | HY5WZ-51-134 |
Rated Voltage | 6kV,10kV,11kV,12kV,17kV,24kV,33kV,35kV,51kv |
Maximum Continuous Operating Voltage (MCOV) | 42kV |
Nominal Discharge Current | 20kA, 10kA, 5kA, 2.5kA, 1.5kA |
Maximum Discharge Current | 100kA |
Creepage Distance | 1340mm |
Housing Material | Polymer + Metal Oxide |
Protection Level | IP67 |
Operating Temperature | -40°C to 85°C |
Where is HY5WZ-51-134 Used?
The HY5WZ-51-134 High Voltage Surge Arrester is ideal for various applications, including:
- Transmission and Distribution Networks: Provides surge protection for high-voltage lines.
- Renewable Energy Systems: Safeguards solar and wind farms from transient overvoltages.
- Industrial and Commercial Power Systems: Ensures equipment longevity in sensitive installations.
- Railway Electrification Systems: Enhances reliability in high-voltage railway grids.
Frequently Asked Questions (FAQ)
Why is a High Voltage Surge Arrester essential for power systems?
Without a surge arrester, transient overvoltages can cause insulation failure and permanent damage to power equipment. The HY5WZ-51-134 absorbs and diverts excessive voltage, preventing costly downtime and repairs.
How does the HY5WZ-51-134 differ from other surge arresters?
The HY5WZ-51-134 offers an enhanced creepage distance, making it highly effective in polluted or humid environments. Additionally, its polymer housing provides superior mechanical and environmental resistance compared to traditional porcelain designs.
What maintenance is required for a High Voltage Surge Arrester?
Surge arresters generally require minimal maintenance. However, periodic visual inspections for contamination, physical damage, or unusual electrical behavior can help ensure continued optimal performance.
The HY5WZ-51-134 High Voltage Surge Arrester stands out for its robust protection, high energy absorption capacity, and durability in extreme environments. Its advanced design makes it an excellent choice for power utilities, industrial applications, and renewable energy projects.