Wind Power Dedicated Combined Transformer Substation (American - Style Transformer)

Wind Power Combined Transformer

The wind power combined transformer integrates step-up transformer core, switchgear, fuses, tap changers, and auxiliary equipment. High-voltage switches and fuses are immersed in the oil tank, featuring a compact overall dimension. Its structural design resembles the transformer substations introduced from the U.S. in the 1990s, hence known as "Wind Power American Transformer" in the industry. According to structural configurations and component arrangements, it is classified into two types: fully insulated split-box products and common-box products with dry-type bushing outlets for high-voltage sides.

Core Features

1. Integrated Oil-Immersed Design

• High-voltage components (load switches, fuses) are submerged in the transformer oil tank, achieving IP67-level protection and reducing external interference. The oil-immersed structure enhances heat dissipation efficiency by 30% compared to dry-type designs.

2. Two Structural Types

• Adopts dry-type porcelain bushings for high-voltage outlets, reducing tank size by 20%. Ideal for onshore wind farms with space constraints, supporting 35kV/10kV voltage levels.

• Separates high-voltage, transformer, and low-voltage compartments with insulated partitions, minimizing fault cross-interference. Suitable for offshore wind farms requiring strict insulation (salt spray resistance ≥1000h).

• Fully Insulated Split-Box Type：

• Common-Box Type with Dry Bushings：

3. Compact Footprint & High Reliability

• Overall dimensions are 40% smaller than traditional split substations (e.g., 2.5m×2.2m×2.3m for 2.5MW models), fitting into narrow wind turbine bases. The oil-tight structure withstands vibration (3G acceleration) and extreme temperatures (-40°C~+55°C).

Technical Specifications

Application Scenarios

• Onshore Wind Farms：

• Used in high-altitude (≤5000m) and cold regions (-30°C), with anti-condensation heating systems for oil tanks. Suitable for distributed wind projects integrating with PV systems.

• Offshore Wind Farms：

• Corrosion-resistant nickel-plated steel casings and double-sealed gaskets withstand salt mist and humidity. Supports 24/7 operation in typhoon-prone areas (wind resistance ≥17 级).

• Hybrid Energy Projects：

• Compatible with energy storage systems, converting 35kV AC from wind turbines to DC for hydrogen production or grid peak shaving.

Comparative Advantages (vs. Traditional Wind Transformers)

Industry Standards & Innovations

• Complies with GB/T 25387 Wind Turbine Combined Transformers and IEC 62615 Power Transformers for Wind Power Applications.

• Innovations include:

• Self-healing insulating oil (rejuvenation rate ≥90% after 10 years);

• Intelligent tap changers with remote adjustment (±4×2.5% voltage regulation).

This product optimizes wind power generation systems with its compact design, high reliability, and environmental adaptability, providing turnkey solutions for onshore and offshore wind projects. Contact us for customized configurations and technical support!