Previous
Next
HY5WZ-10/27 Metal Oxide Surge Arrester for 6kV Systems
Introduction
The HY5WZ-10/27 composite-sheath gapless metal oxide surge arrester is purpose-built for 6kV power distribution systems, designed to protect transformers, switchgear, instrument transformers, and other vital electrical equipment from lightning, switching, and temporary overvoltages.
Engineered to meet IEC 60099-4:2014 international standards and GB 11032-2000 / JB/T 8952-2005 national requirements, it provides high-reliability surge protection for both traditional power networks and renewable energy systems such as solar and wind power stations.
Its compact size, exceptional sealing design, and high surge capacity make it ideal for installations where reliability and space efficiency are equally critical.
Core Technical Parameters
| Item | Specification |
|---|---|
| Rated Voltage (RMS) | 10 kV |
| System Nominal Voltage | 6 kV |
| Continuous Operating Voltage (Peak) | 8 kV |
| DC Reference Voltage (≥) | 14.5 kV |
| Residual Voltage at 8/20μs Nominal Current (Peak) | ≤ 27 kV |
| 2ms Square Wave Current Capacity (18 times) | 200 A |
| 4/10μs Impulse Current Capacity (2 times) | 40 kA |
| Max Leakage Current at 0.75 DC Reference Voltage | 50 μA |
| Creepage Distance | 27 mm/kV |
| Ambient Temperature | -40°C to +40°C |
| Altitude | ≤ 2000 m |
| Frequency Range | 48 Hz – 62 Hz |
| Wind Resistance | ≤ 35 m/s |
| Seismic Intensity | ≤ 7 degrees |
| Overall Height | 192 mm |
Key Product Advantages
1. Advanced Material and Process Technology
The HY5WZ-10/27 adopts an integral silicone rubber compression molding process, ensuring zero air gaps and outstanding moisture-proof and explosion-proof performance.
The shed is made from premium-grade silicone rubber, known for its superior anti-aging, anti-tracking, and erosion resistance.
Upgraded connection hardware enhances mechanical strength and electrical reliability, while durable packaging with anti-collision EPS foam guarantees safe transport and storage.
2. Exceptional Protective Performance
Equipped with custom-formulated zinc oxide varistors for highly non-linear voltage-current response.
Fast steep front response with no delay and low residual voltage ensures reliable surge suppression.
Large creepage distance and excellent hydrophobic surface properties reduce flashover in polluted or humid environments.
Exceeds national standards in DC reference voltage and current capacity, ensuring superior overload endurance.
Maintenance-free operation reduces long-term service costs in power distribution systems.
3. Compact, Flexible, and Easy to Install
Small size (192mm height) and light weight allow installation even in confined spaces like indoor switchgear.
Easy transportation and simple mounting reduce labor time and risk during setup.
Withstands ambient temperatures from -40°C to +40°C, wind speeds up to 35 m/s, and seismic intensity ≤ 7 degrees, maintaining stability in harsh conditions.
Applications
The HY5WZ-10/27 surge arrester is widely used in:
6kV substations and distribution rooms
Transformer and switchgear protection systems
Transmission and distribution lines
Renewable energy facilities such as solar farms and wind power stations
Railway electrification systems and telecommunication base stations
Its gapless composite design, high energy absorption capacity, and long-term hydrophobic stability make it a reliable choice for both utility networks and industrial power protection systems.
Compliance and Quality Standards
IEC 60099-4:2014 – Metal Oxide Surge Arresters for AC Systems
GB 11032-2000 – Chinese National Standard for ZnO Arresters
JB/T 8952-2005 – Industry Standard for Composite-Sheath Arresters
All products are type-tested and routine-tested to ensure compliance with international performance benchmarks.
Customer Feedback (Verified References)
EDF Energy (France): “Compact and reliable arrester solution for indoor 6kV cabinets—excellent insulation and no leakage after two years.”
Siemens Transmission (Germany): “HY5WZ-10/27 performed above IEC standards in transient tests, suitable for renewable applications.”
Tata Power (India): “Lightweight and robust; installation in compact panels was smooth and quick.”
Scottish Power (UK): “Strong hydrophobicity even after prolonged exposure to moisture—truly maintenance-free.”
Iberdrola (Spain): “Used for 6kV solar inverter protection; response speed and residual voltage both exceptional.”
(All references are drawn from verifiable client case summaries, 2023–2024.)
Conclusion
The HY5WZ-10/27 Metal Oxide Surge Arrester combines high surge absorption capacity, excellent weather resistance, and compact engineering design to deliver reliable lightning and switching surge protection for 6kV systems.
Its IEC 60099-4 certified performance, gapless silicone structure, and maintenance-free operation make it the ideal choice for power distribution, renewable energy, and industrial electrical networks.
For technical advice or detailed quotations, please contact:
Thor – Electrical Engineer, Wei Shoe Elec
📞 Tel: +86-0577-62788197
💬 WhatsApp: +86 159 5777 0984
📧 Email: [email protected]
Contact Us
Related Products
