Power Station Metal Oxide Surge Arresters China Factory and Suppliers
Shaanxi Oumude Electronics Co., Ltd.
Address：
No. 327, Yao Si Road, High-tech Zone, Han Cheng City, Weinan City, Shaanxi Province, China
Description
Description
Shaanxi Huayuan Superpower Electric specializes in the engineering of high-performance Power Station Metal Oxide Surge Arresters (MOA), designed to safeguard critical substation and power plant infrastructure. By utilizing advanced production equipment and a rigorous quality control system, our MOAs fully comply with the stringent GB/T11032 and IEC60099-4 international standards, ensuring maximum reliability in the most demanding electrical environments.
Operating on the nonlinear voltage-current characteristics of premium Zinc Oxide (ZnO) varistor elements, these arresters provide an invisible shield against lightning strikes and switching surges. During normal operation, they maintain high resistance to prevent leakage; however, during an overvoltage event, they respond within microseconds to discharge surge energy safely to the ground, automatically restoring their high-resistance state to ensure continuous, uninterrupted power system stability.
Detailed Parameters
| Standard Compliance | GB/T11032 & IEC60099-4 | Core Material | Zinc Oxide (ZnO) Varistor |
|---|---|---|---|
| Rated Voltage Range | 12kV to 192kV | MCOV Range | 10.2kV to 150kV |
| Nominal Discharge Current (In) | 10kA to 560kA | Response Speed | Microsecond Level |
| Protection Application | Transformers & Busbars | Recovery Feature | Automatic Self-Recovering |
| Operational Mode | Nonlinear V-I Characteristic | Primary Function | Overvoltage Limitation |
Key Advantages
Superior Protection
Effectively limits overvoltage and discharges surge energy from lightning and switching operations.
Ultra-Fast Response
ZnO material drops resistance within microseconds to provide an immediate low-resistance path to ground.
Global Standardization
Fully certified and manufactured according to IEC60099-4 and GB/T11032 technical requirements.
Self-Recovering Capability
Automatically returns to high-resistance state once overvoltage is eliminated without external control.
High Energy Absorption
Engineered to absorb massive surge energies, protecting critical transformer insulation from damage.
Stable Performance
Consistent technical performance across a wide range of rated voltages from 12kV up to 192kV.
Product Gallery
Management Platforms
Quality Control
Complete quality inspection systems ensuring every unit meets rigorous industrial standards.
Precision Manufacturing
Utilizing advanced production equipment for standardized and precise ZnO block assembly.
Performance Testing
Professional testing technologies to verify discharge current and residual voltage levels.
Technical Support
Expert guidance on the installation of MOAs near transformers and switchgear.
Supply Chain Optimization
Streamlined logistics for rapid deployment of critical power protection components.
R&D Innovation
Continuous improvement of varistor materials for higher energy absorption capacities.
Investment Return Comparison
| Evaluation Metric | Standard MOA | Huayuan Superpower MOA |
|---|---|---|
| Response Time | Standard | Ultra-Fast (Microseconds) |
| Compliance | Basic/Local | IEC60099-4 & GB/T11032 |
| Durability | Moderate | High Energy Absorption |
| Maintenance | Periodic Manual Check | Self-Recovering / Low Maintenance |
| System Reliability | Average | Maximum Stability for Power Stations |
Frequently Asked Questions
Q: What is the primary function of a Metal Oxide Surge Arrester in a power station?
MOAs are protective devices designed to limit overvoltage and safely discharge surge energy caused by lightning strikes or switching operations, protecting critical equipment like transformers.
Q: How does the Zinc Oxide (ZnO) varistor element work?
ZnO exhibits nonlinear voltage-current characteristics: it remains highly resistive during normal voltage but becomes highly conductive within microseconds when voltage exceeds the rated protection level.
Q: Does the MOA require manual resetting after a surge event?
No, the ZnO varistors feature a self-recovering capability, meaning they automatically return to their high-resistance state once the overvoltage is eliminated.
Q: Where should Power Station Metal Oxide Surge Arresters be installed?
They are typically installed near high-value assets such as transformers, busbars, and switchgear to prevent insulation damage from voltage spikes.
Q: Which international standards do Huayuan Superpower MOAs meet?
All our Metal Oxide Arresters are manufactured to meet the strict technical requirements of GB/T11032 and IEC60099-4 standards.
Q: What is the typical voltage range for these surge arresters?
Our product range covers various rated voltages, from 12kV (YH10W-12/36) up to 192kV (YH10W-192/500) to suit different power system needs.
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