I. Product Overview

The dry-type transformer for wind turbine generators is an essential step-up transformer used in wind power generation systems. It is mainly installed in wind turbine units and wind farm power collection and step-up systems. Its primary function is to step up the low-voltage electricity generated by wind turbines to a medium-voltage level and transmit it to the wind farm collector system and substation.

Hengfengyou Electric's dry-type transformers for wind turbine generators are manufactured using high-quality insulation materials and advanced winding technologies. They offer excellent insulation performance, mechanical strength, and thermal stability, enabling reliable operation under the continuous vibration, temperature fluctuations, and complex environmental conditions associated with wind power generation.

The transformers can be customized according to different wind turbine capacities, rated voltages, installation spaces, and operating environments. They are suitable for onshore wind farms, offshore wind farms, and integrated renewable energy power projects.

II. Product Advantages

1. High Safety

The transformer adopts an epoxy resin cast insulation structure with excellent flame-retardant and self-extinguishing properties. Its oil-free design significantly reduces fire risks, making it suitable for wind power applications where fire safety and operational security are critical.

2. Excellent Vibration Resistance

A robust structural design and high-strength winding manufacturing technology enable the transformer to withstand continuous vibration generated during wind turbine operation, as well as mechanical impacts during transportation, lifting, and installation.

3. Effective Temperature Rise Control

The core, winding, and heat dissipation structures are optimized to reduce operating losses and temperature rise. This ensures reliable long-term continuous operation in wind power generation systems.

4. Excellent Insulation Performance

The high-voltage windings are manufactured using vacuum casting technology, which effectively reduces internal air bubbles and the risk of partial discharge. This improves the operational reliability and service life of the transformer.

5. Good Harmonic Tolerance

The transformer is designed to accommodate the harmonic effects generated by power electronic equipment in wind power generation systems. This enhances its adaptability to nonlinear loads and complex power quality conditions.

6. Excellent Moisture Resistance

High-quality insulation materials, together with appropriate sealing and protective designs, enable the transformer to operate reliably in wind farm environments subject to significant changes in humidity.

7. Adaptability to Offshore Wind Environments

For offshore wind power projects, the transformer can be equipped with enhanced anti-corrosion, moisture-resistant, and salt-spray protection measures according to project requirements, improving operational stability in marine atmospheric environments.

8. Compact Structure and Flexible Installation

The transformer structure can be optimized according to the available space inside wind turbine towers, nacelles, or containerized equipment. This helps minimize equipment footprint while maintaining the required electrical performance.

9. Low Maintenance Cost

The dry-type design eliminates the need for transformer oil and routine oil treatment. Its relatively low daily maintenance requirements help reduce operation and maintenance costs throughout the lifecycle of a wind power project.

III. Main Applications

Dry-type transformers for wind turbine generators are mainly used in:

• Onshore wind farms
• Offshore wind farms
• Wind turbine generator units
• Wind turbine tower power distribution systems
• Wind turbine nacelle electrical systems
• Wind farm collector systems
• Renewable energy generation bases
• Integrated wind-solar-storage projects

According to specific project requirements, Hengfengyou Electric can provide transformer solutions with different power ratings, voltage levels, insulation classes, and cooling methods.

IV. Customization Services

Hengfengyou Electric provides customized dry-type transformer solutions according to the specific technical requirements of wind power projects.

The following information is recommended when placing an order:

• Rated transformer capacity
• High-voltage and low-voltage rated voltages
• Frequency
• Vector group
• Cooling method
• Installation location and available space
• Altitude
• Ambient temperature
• Humidity and salt-spray level
• Required protection rating
• Wind turbine model and project operating conditions
• Other special technical requirements

For offshore wind power projects, Hengfengyou Electric can provide specialized designs with enhanced moisture resistance, corrosion resistance, salt-spray protection, and mechanical strength according to the actual operating environment.

V. Project Case

VI. Our Advantages

1. Authoritative Certifications

Hengfengyou Electric can provide relevant certifications and testing documents according to the requirements of different markets and projects, including ISO, CE, CB, CCC, SASO, KEMA, and other applicable certifications.

2. Strict Quality Management

A comprehensive SQA quality management system is implemented throughout the entire production process, covering raw material procurement, manufacturing, assembly, and final testing. This ensures that products comply with project-specific technical requirements.

3. Mature Manufacturing Technology

Advanced production equipment and mature dry-type transformer manufacturing technologies are adopted. Key processes, including core manufacturing, winding, insulation, and resin casting, are strictly controlled to ensure consistent product quality.

4. Global Export Experience

Hengfengyou Electric has extensive experience serving the international power transmission and distribution equipment market. Its products are exported to multiple countries and regions, with solutions tailored to different national standards, grid requirements, and project environments.

5. Fast Delivery

Supported by a mature supply chain and efficient production system, Hengfengyou Electric can help shorten production lead times and provide efficient delivery support for overseas engineering projects.

6. OEM/ODM Services

OEM and ODM customization services are available. Dry-type transformers for wind turbine generators can be customized according to customers' technical parameters, installation dimensions, branding requirements, and project standards.

VII. Business Cooperation

Partner with Hengfengyou Electric to Build Reliable Wind Power Systems

Hengfengyou Electric specializes in the development, manufacturing, and export of power transmission and distribution equipment, providing transformers, switchgear, and other electrical equipment to customers worldwide.

With established manufacturing capabilities, a comprehensive quality management system, and extensive overseas project experience, we can provide integrated support throughout the entire process, from product selection and technical solution design to manufacturing and delivery.

Whether for onshore or offshore wind power projects, Hengfengyou Electric is committed to providing safe, reliable, cost-effective, and environmentally adaptable transformer solutions tailored to different operating conditions.