Custom Heavy-Duty Enclosures for Dry-Type Transformers

Our dry-type transformers come with factory-matched enclosures, ensuring seamless mechanical integration, optimized thermal performance, and simplified on-site installation. By choosing our integrated solution, you eliminate compatibility issues and receive a pre-tested, turnkey package ready for your power distribution project.

Why choose our integrated solution?

Zero-Error Integration: The enclosure is custom-fabricated to the exact dimensions of your transformer, guaranteeing a perfect mechanical fit and stress-free installation.

Optimized Thermal Coordination: Our engineering team simulates airflow for the combined unit, ensuring the transformer maintains maximum efficiency while fully protected.

Single-Point Accountability: Dealing with one supplier for both the transformer and the enclosure means streamlined project management, faster technical support, and unified after-sales service.

Plug-and-Play Ready: Reduced on-site labor costs, as the unit is designed for rapid assembly and immediate busbar connection.

Main Functions

1. Safety Protection: Isolate live parts to prevent electric shock, block small animals and avoid short circuit faults.
2. Environmental Isolation: Resist dust, moisture, salt fog and harmful gas, protect winding insulation and extend service life.
3. Heat Dissipation & Ventilation: Equipped with louver vents to ensure natural and forced air cooling efficiency.
4. Structural Support: Fix transformer body, temperature controller, cooling fans and other accessories, easy for hoisting and cabinet assembly.
5. Electromagnetic Shielding: Reduce stray magnetic field interference.

Common Materials

• Cold Rolled Steel with Powder Coating: High strength, cost-effective, widely used indoors with optional colors.
• 304/316 Stainless Steel: Excellent corrosion resistance, suitable for outdoor, coastal and chemical environments.
• Aluminum Alloy: Light weight and good heat dissipation.
• Fiberglass Reinforced Plastic: Superior insulation and anti-corrosion performance for explosion-proof and special working conditions.

Protection Degree

• IP20: Standard protection for clean, dry locations.
• IP21: Protects against accidental finger contact & light condensation.
• IP23: Rain-resistant; ideal for ventilation-demanding areas.
• IP31: Enhanced protection against small tools and vertical drips.
• IP44: Splash-proof; suitable for humid or dusty workshop environments.
• IP54: Dust-proof and splash-proof; ideal for mining, chemical & outdoor sites.
• IP55: Dust-tight & Jet-proof; ideal for coastal, chemical, or heavy-dust environments where water jets are possible.
• Note on IP54/IP55 Protection: Choosing a high protection grade (IP54/IP55) for dry-type transformers significantly reduces natural airflow. To ensure optimal performance and prevent overheating, our IP54/IP55 enclosures are pre-engineered with professional forced-ventilation systems (industrial-grade cooling fans) and temperature monitoring.
• We provide IP20 to IP55 options. While higher IP ratings offer superior protection, our engineering team optimizes louver geometry to ensure your transformer maintains a stable operating temperature at all times.

Structural Types

• Closed Type: Full enclosed design with good protection, equipped with ventilation louvers.
• Open Type: Good heat dissipation with low protection level, only used in dry and clean indoor environment.
• Cabinet Combined Type: Matched height with low-voltage switchgear, convenient for busbar connection and power room layout.

Application Scenarios

Indoor: Office buildings, shopping malls, basements, power distribution rooms.

Outdoor: Residential communities, industrial plants, substations.

Special environment: Mining, chemical industry, coastal areas.

All our transformers are factory-tested with their specific enclosures for optimal thermal and mechanical performance.