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As a specialized manufacturer with over a decade of experience in high-voltage electrical protection, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents our 36kV Surge Arrester with Integrated Disconnector, a solution meticulously engineered for the demanding environment of wind energy farms. Our commitment to quality, evidenced by robust management systems like ISO9001 and ISO14000, is embedded in every unit we produce. This product is designed not just to meet specifications but to provide reliable, long-term protection for your critical wind turbine assets, minimizing downtime and safeguarding your investment against transient overvoltages.
Wind farms present unique challenges for electrical systems, including exposure to lightning strikes, switching surges, and harsh environmental conditions. Our arrester is tailored to address these specific needs. The core value lies in its dual functionality: superior surge suppression coupled with a clear, visual fault indication system via the integrated disconnector. This allows for quick identification and isolation of a failed unit, enhancing maintenance efficiency and overall system safety.
Key Product Features & Technical Advantages:
- Optimized for Wind Farm Grids: The electrical characteristics are fine-tuned to match the typical impedance and voltage levels found in wind farm collection systems, ensuring optimal protection coordination.
- Robust Housing and Sealing: Constructed with high-grade polymer housings that offer excellent resistance to UV radiation, salt mist, and wide temperature fluctuations, crucial for coastal or offshore installations.
- High Energy Absorption Capability: Utilizes advanced metal-oxide varistor (MOV) discs with high energy handling capacity to withstand multiple high-current surges, extending service life.
- Integrated Disconnector Function: In the rare event of a failure due to an extreme surge, the internal disconnector mechanism operates, physically creating a visible open gap and often triggering a flag indicator. This safely isolates the faulty arrester from the live circuit.
- Customizable Design: We understand that projects vary. Mounting brackets, creepage distance, connector types, and specific electrical parameters can be customized to fit your exact layout and grid requirements.
- Low Residual Voltage: Provides effective voltage clamping to protect sensitive turbine power electronics, inverters, and transformers from damaging overvoltages.
Detailed Technical Specifications:
The following table outlines the standard performance parameters for our 36kV Wind Farm Surge Arrester. Custom specifications are available upon request.
| Parameter | Specification / Value |
|---|---|
| Rated Voltage (Ur) | 36 kV rms |
| Continuous Operating Voltage (Uc) | 29 kV rms |
| Nominal Discharge Current (In) | 10 kA (8/20 µs) |
| Line Discharge Class | Class 2 |
| Pressure Relief Class | High (as per applicable standards) |
| Housing Material | High-Track Silicone Rubber or Polymer |
| Disconnector Activation | Upon sustained follow current after failure |
| Operating Temperature Range | -40°C to +55°C |
Benefits for Your Wind Farm Project:
- Enhanced System Reliability: Reduces the risk of unexpected outages caused by surge-related damage to expensive components.
- Reduced Maintenance Costs: The visual fault indication allows for rapid pinpointing of a failed unit, saving troubleshooting time and labor.
- Improved Safety: Isolates a failed arrester, preventing it from remaining as a latent hazard on the energized line.
- Long Asset Lifespan: Protects transformers, switchgear, and turbine electronics, contributing to a longer operational life for your entire electrical infrastructure.
- Project Flexibility: Our customization capability means you get a product that fits your specific turbine model and site layout seamlessly.
Trust in a manufacturer with a proven global footprint. Jinhua Dika serves markets across North America, Europe, Asia, Africa, and Oceania, with an annual export value reflecting consistent international demand. Our products ship from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics. Our adherence to comprehensive management standards (ISO9001, ISO14000, OHSAS18001) is not just a certificate; it's our operational blueprint for delivering reliable, high-performance surge protection. For your next wind farm project, choose a surge arrester built by experts who understand the stakes. Contact us today to discuss your specific requirements and receive a customized solution that delivers peace of mind and robust protection.
Frequently Asked Questions (FAQ):
-
Q: Why is a disconnector important in a wind farm surge arrester?
A: Wind farms are often in remote, hard-to-access locations. A disconnector provides a clear, visual indication (like a popped flag) that a specific arrester has failed. This allows maintenance crews to quickly identify and replace the faulty unit without extensive testing, minimizing downtime. -
Q: Can this arrester be used for both onshore and offshore wind farms?
A: Yes. The standard design features materials resistant to harsh environments. For offshore applications, we can provide enhanced corrosion protection and specific creepage distances to handle salt-laden atmospheres. Please specify your application during inquiry. -
Q: What level of customization do you offer?
A: We offer significant customization. Common modifications include specific mounting hardware to fit your turbine's junction box, altered lead lengths or terminal types, and tuning of the residual voltage characteristics to match your system's protection coordination study. -
Q: How does the arrester protect the wind turbine's power electronics?
A: It acts as a voltage-sensitive switch. During a normal operating voltage, it presents a high impedance. When a lightning or switching surge raises the voltage above a safe threshold, it instantly switches to a low-impedance state, diverting the surge current to ground and clamping the voltage to a safe level for the sensitive electronics. -
Q: What is the expected service life of this product under normal conditions?
A: Under standard atmospheric conditions and within its rated operational parameters, the metal-oxide varistor core has a long service life. The housing is designed for decades of outdoor exposure. The actual lifespan depends on the frequency and severity of surge events at the installation site. -
Q: Do you provide test reports or certificates for the product?
A: As a manufacturer with ISO9001 certification, we conduct rigorous in-house testing. Standard type test reports (such as for nominal discharge current, residual voltage, etc.) are available upon request. Specific third-party certification for the product can be discussed based on project requirements. -
Q: What is your production lead time for a customized order?
A: Lead times vary based on the complexity and quantity of the order. For standard customized configurations, typical lead time ranges from 4 to 8 weeks after order confirmation. We provide a firm timeline upon receipt of your detailed specifications. -
Q: How do I determine the correct rating (36kV) for my application?
A: The arrester's rated voltage (Ur) should be selected based on the system's highest continuous operating voltage. For a 36kV system, a 36kV rated arrester is typical. Our technical team can assist you in selecting the optimal rating based on your specific grid configuration and protection philosophy.
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