Introduction

In today’s fast-evolving electrical industry, safety, efficiency, and sustainability are more than just buzzwords—they are the cornerstones of reliable power distribution. Among the many critical components that make this possible, dry type transformers have earned a reputation for being efficient, safe, and eco-friendly.

Unlike traditional oil-filled transformers that rely on liquid insulation, dry type transformers use air or solid insulation systems, making them an ideal choice for indoor applications and environmentally sensitive areas. As the world moves toward greener infrastructure, these transformers are playing an increasingly vital role in shaping the future of power systems.

At Degatech Electric Co. Ltd., we specialize in manufacturing state-of-the-art dry type transformers that deliver optimal performance and long-term reliability across industries.

What Is a Dry Type Transformer?

A dry type transformer is an electrical device that transfers energy between circuits using electromagnetic induction—without any liquid coolant. Its coils and core are insulated by materials like epoxy resin, varnish, or silicone to prevent moisture and dust ingress.

Because they do not use oil, these transformers eliminate fire hazards, reduce maintenance requirements, and minimize environmental impact. They are particularly suitable for applications in buildings, factories, data centers, and renewable energy systems.

Construction and Design Features

Modern dry type transformers feature:

• High-Quality Windings: Copper or aluminum windings with epoxy resin coating for mechanical strength.

• Ventilated or Cast Resin Design: Allows for air cooling or complete encapsulation of coils.

• Temperature Sensors: For thermal protection and real-time monitoring.

• Compact Core Structure: Reduces energy losses and noise levels.

Degatech Electric designs each transformer with strict adherence to IEC and ANSI standards to ensure maximum reliability and performance under diverse environmental conditions.

Types of Dry Type Transformers

There are two main types of dry type transformers widely used today:

1. Cast Resin Transformer (CRT)
   The windings are fully encapsulated with epoxy resin, providing excellent protection against dust, moisture, and corrosion. Ideal for humid or coastal regions.

2. Vacuum Pressure Impregnated (VPI) Transformer
   Uses varnish under vacuum and pressure to coat windings. This method enhances thermal performance and allows better cooling for continuous heavy-duty operation.

Both designs provide excellent insulation and mechanical strength but are chosen based on application requirements and environmental factors.

Applications of Dry Type Transformers

Dry type transformers are versatile and widely used across multiple sectors:

• Commercial Buildings: Shopping centers, office complexes, and hospitals rely on them for safe indoor power distribution.

• Industrial Facilities: Support machinery, control systems, and lighting networks.

• Renewable Energy Plants: Used in wind and solar installations to step up or step down voltage levels.

• Data Centers: Provide stable power with minimal risk of fire or oil leakage.

• Transportation Systems: Found in metro stations, airports, and tunnels where space and safety are key.

Key Advantages of Dry Type Transformers

1. Enhanced Safety
   No risk of oil leakage or explosion, making them ideal for confined or high-traffic spaces.

2. Low Maintenance
   Requires minimal upkeep—no oil testing or refilling.

3. Eco-Friendly Operation
   Air or resin insulation ensures zero pollution and easier recycling.

4. Compact and Quiet Design
   Suitable for indoor installation near load centers with minimal noise disturbance.

5. High Efficiency
   Low core and copper losses lead to energy savings over time.

6. Durability
   Resistant to humidity, dust, and corrosive environments.

At Degatech Electric, each unit undergoes rigorous testing to guarantee these advantages in real-world conditions.

Energy Efficiency and Cost Savings

One of the standout benefits of dry type transformers is their energy efficiency. By reducing load and no-load losses, these units help lower electricity consumption and operating costs. Additionally, the absence of oil minimizes disposal costs and environmental compliance expenses.

Over its lifespan, a Degatech transformer can save thousands of kilowatt-hours of energy, contributing to both financial and ecological sustainability.

Safety Considerations

Dry type transformers excel in safety-critical environments. Since they contain no flammable liquid, the risk of fire or explosion is significantly reduced. Moreover, their insulation materials are self-extinguishing, ensuring safety in public and industrial buildings.

Degatech’s designs incorporate temperature sensors, overheat protection, and fire-retardant materials to meet even the most stringent international safety codes.

Technological Innovations by Degatech Electric

Degatech Electric continuously invests in research and development to advance transformer technology. Our innovations include:

• Smart Monitoring Systems: Real-time temperature and performance tracking.

• Noise Reduction Engineering: Optimized core design minimizes acoustic emissions.

• High Thermal Class Materials: Extend transformer life under heavy loads.

• Custom Design Solutions: Tailored for renewable energy, mining, and transportation sectors.

By integrating cutting-edge materials and intelligent controls, Degatech ensures each transformer meets the evolving demands of modern infrastructure.

Installation and Maintenance

Dry type transformers are relatively easy to install. They require no oil containment systems, reducing installation costs and space requirements. Regular inspection of connections, air filters, and temperature sensors is sufficient to ensure years of reliable operation.

Degatech Electric provides detailed installation guidelines and after-sales support to help clients achieve optimal system performance and longevity.

Environmental Responsibility

As sustainability becomes a key factor in engineering design, dry type transformers stand out as a green alternative. They eliminate oil leaks, reduce fire hazards, and operate silently—all contributing to cleaner, safer environments.

Degatech’s production facilities also adhere to strict environmental management standards, ensuring each transformer aligns with global sustainability goals.

Why Choose Degatech Electric Co. Ltd.

Degatech Electric is a trusted name in electrical power equipment manufacturing. Our dry type transformers are engineered for high performance, durability, and efficiency. With over a decade of expertise in the field, we supply solutions for power utilities, industries, and renewable energy projects around the world.

Each product is tested under real-world conditions to ensure compliance with international standards and exceed client expectations.

Visit our website to explore our complete product range and technical specifications:
👉 https://chinadegatech.com/

Conclusion

Dry type transformers represent the future of safe, efficient, and sustainable power distribution. With their superior safety profile, low maintenance needs, and eco-friendly design, they are the preferred choice for modern power systems.

By choosing Degatech Electric Co. Ltd., customers gain access to innovative, high-quality transformers built for long-term performance and environmental responsibility. Degatech continues to lead the way in engineering excellence—delivering solutions that empower industries and communities worldwide.