Dry-Type Distribution Transformers for New Energy Wind Power Projects: Efficient and Environmentally Friendly

Driven by the global energy transition and the goals of carbon neutrality, wind power has become a key pillar of clean energy. In the power transmission system of wind power projects, dry-type distribution transformers play a vital role in delivering electricity within the wind farm. Their high efficiency, environmental performance, and reliability make them essential for the stable operation of modern wind energy projects.

Why Wind Power Projects Need Upgraded Distribution Equipment

Wind farms—especially offshore installations—are often exposed to challenging environments such as high humidity, salt spray, temperature fluctuations, and vibration. Traditional oil-immersed transformers show clear disadvantages in such conditions:

• Insulating oil leakage risks soil and marine pollution.
• Oil is flammable, posing fire and safety risks.
• Frequent maintenance increases operational costs.

Dry-type transformers overcome these issues through epoxy resin casting and the elimination of insulating oil. This design ensures zero pollution, non-flammability, and long-term reliability, making them the ideal solution for sustainable and safe wind power operation.

How Dry-Type Transformers Achieve Efficiency and Environmental Friendliness

High Efficiency and Energy Saving

Using high-permeability silicon steel sheets or amorphous alloy cores, dry-type transformers significantly reduce no-load losses. Amorphous alloy transformers can cut energy losses by up to 70% compared to traditional designs. For variable wind turbine outputs, this means lower energy waste and higher cost-efficiency during low-load conditions.

Environmental Protection and Safety

No Pollution Risk: Without insulating oil, there’s no leakage, ensuring compliance with environmental standards for offshore wind farms.
High Fire Resistance: The epoxy resin is self-extinguishing, enhancing safety even during fault conditions.
Low Noise Operation: Operating below 65 dB, dry-type transformers minimize acoustic disturbance to nearby areas.

Superior Environmental Adaptability

With IP54 or higher protection ratings, these transformers resist dust, moisture, and salt corrosion. Their maintenance-free design reduces on-site service requirements, which is especially beneficial for offshore and remote wind farms.

Enhancing Overall Project Benefits

Reducing Life-Cycle Cost (LCC)

Although initial investment may be higher, the low energy loss and minimal maintenance of dry-type transformers significantly reduce long-term costs. Over a 30-year lifespan, total ownership costs are far lower than those of oil-immersed transformers, providing an excellent return on investment.

Supporting Smart Grid Development

Modern dry-type transformers can integrate IoT-based sensors to monitor temperature, humidity, and other performance metrics in real time. This data enables predictive maintenance, fault prevention, and optimized system performance—key features for intelligent wind farm management.

Technical Trends and Selection Guidelines

Technical Trends

• Amorphous Alloy Cores: Providing superior magnetization and low-loss performance.
• Digital Integration: Combining IoT and digital twin technologies for precise condition monitoring.
• Compact Modular Design: Meeting space constraints of modern turbines and reducing installation time.

Key Selection Criteria

• Energy Efficiency Level: Choose models meeting or exceeding GB 20052-2020 Level 1 standards (e.g., SCB18 series).
• Insulation Class: Opt for F-class (155°C) or H-class (180°C) for stable operation under heavy load and high temperatures.
• Certifications: Ensure compliance with international standards such as CQC, CE, and UL for guaranteed quality.

Contact Us

If you are looking for a high-efficiency, reliable dry-type transformer solution customized for your wind power project, contact our expert engineering team today for free technical consultation and personalized recommendations.