Dry-type transformers, including the 2500 kVA dry type transformer and other industrial units, operate without insulating oil, utilizing epoxy resin insulation to ensure reliable current isolation and effective arc prevention. This cast resin dry type transformer design also provides excellent moisture resistance, making it suitable for challenging environments. Cooling systems are available in two configurations: natural air cooling (AN) for standard conditions and forced air cooling (AF) for enhanced heat dissipation during peak loads. Designed as a three phase dry type transformer, these units deliver superior reliability, require zero maintenance throughout their service life, and provide an environmentally friendly solution for modern power distribution needs.

Highlights:

1. Exceptional Operational Efficiency
   This 2500 kVA dry type transformer shows low operating losses. It runs quietly and keeps partial discharge to a minimum. The cast resin dry type transformer uses a good heat dissipation design. It can run at 120% capacity all the time when forced air cooling is on. This setup gives strong efficiency in industrial and commercial work.

2. Excellent Humidity Adaptability
   This dry type transformer comes with strong moisture resistance and epoxy resin insulation. It works well in places with humidity up to 100%. It starts up right away even after long breaks. No pre-drying is needed.

3. Safe and Clean Operation
   This three phase dry type transformer resists fire well. It adds no pollution or harm to the environment. The unit suits indoor spots and places that need extra care for safety and clean conditions.

4. Superior Temperature Management
   This dry type transformer has a good temperature protection system. It checks heat levels all the time. The system supports steady use over many years and keeps things safe during heavy loads.

5. Simple Installation & Zero Maintenance
   The 2500 kVA dry type transformer installs fast and with ease. It needs no maintenance during its full life. This cuts running costs and still gives strong results.

6. Proven Reliability
   This cast resin dry type transformer went through tough tests in real conditions. It has epoxy resin insulation and moisture resistance. The unit meets top world standards for reliability. It gives steady power distribution solutions.

Our Advantages:

1. High-Voltage Winding Technology
   The high-voltage windings are manufactured using vacuum casting with epoxy resin and fillers, achieving low partial discharge and high dielectric strength. Fiberglass mesh reinforcement on both inner and outer walls enhances mechanical strength, significantly improving the transformer's ability to withstand sudden short circuits.

2. Low-Voltage Winding Design
   Featuring a foil structure, the low-voltage windings eliminate the axial spiral angle found in traditional wire windings, ensuring optimal ampere-turn balance. Axial cooling channels are integrated to improve heat dissipation, while DMD epoxy pre-impregnated insulation between layers undergoes full curing for a robust and durable construction.

3. Core Structure
   Constructed from premium cold-rolled silicon steel sheets, the core utilizes a three-step fully mitered joint design. Core columns are bound with F-class weftless straps and coated with epoxy resin to minimize no-load loss, reduce excitation current, and lower core noise. All clamping components receive special surface finishing to enhance corrosion resistance and overall appearance.

4. Cooling Fan System
   Equipped with cross-flow top-blowing cooling fans, the transformer benefits from quiet operation and high wind pressure. The aesthetically pleasing fan design effectively increases overload capacity, ensuring reliable performance during peak load conditions.

5. Intelligent Temperature Monitoring
   A smart temperature controller provides continuous thermal monitoring, safeguarding the transformer against overheating and improving both operational safety and system reliability.

6. Protective Enclosure Options
   To meet various installation requirements, protective enclosures are available with IP20, IP23, IP30, IP33 ratings and beyond. Material choices include aluminum alloy, cold-rolled steel plate, and stainless steel, allowing customization for different environments while providing enhanced safety protection.

Product Parameters

Production Process

Company Profile

Guangdong Shengte Electric Co., Ltd., headquartered in Foshan, China,  has built a strong reputation as a reliable transformer manufacturer dedicated to quality and customer satisfaction. With more than ten years of industry experience, we have successfully supplied cost-effective, high-performance transformer solutions to both government agencies and private enterprises around the world.

Our commitment to excellence is proven by our ability to meet the demanding requirements of German Power Utility clients—a benchmark that reflects our adherence to the highest industry standards. We currently hold ISO9001, CE, and Innovative Product Certifications, and we are actively working toward UL certification to further strengthen our global compliance credentials.

Our Foshan facility covers 10,000 square meters and is equipped with modern production lines and precision testing equipment. This allows us to offer flexible OEM and ODM services tailored to specific project needs. Our diverse product portfolio includes oil-immersed transformers, resin cast dry-type transformers, pad-mounted transformers, prefabricated substations, and more—all certified under ILAC-MRA and CNAS-accredited IEC standards.

Certifications

Project Cases

Exhibition

Packaging & Shipping

FAQ

Q: What makes a 2500 kVA dry type transformer different from oil-filled transformers?
A: A 2500 kVA dry type transformer does not use insulating oil. Instead, it employs advanced air-cooling and epoxy resin insulation, offering enhanced safety, reduced environmental risk, and simpler maintenance compared to oil-filled units.

Q: How does the epoxy resin insulation benefit the transformer’s performance?
A: The epoxy resin insulation used in this cast resin dry type transformer provides strong dielectric strength, excellent heat dissipation, and superior moisture resistance, ensuring stable long-term operation even in high-humidity environments.

Q: Where can a three phase dry type transformer like this be installed?
A: This unit is suitable for industrial facilities, commercial buildings, hospitals, shopping centers, renewable energy sites, and other locations requiring safe and efficient power distribution. Its dry type transformer design avoids oil leakage risks, making it ideal for indoor use.

Q: How does the transformer handle humid or wet conditions?
A: Thanks to its moisture resistance properties and quality epoxy resin insulation, this transformer can operate in environments with high humidity without requiring pre-drying after shutdowns, delivering dependable performance under challenging climate conditions.

Q: What cooling methods are supported by this dry type transformer?
A: The transformer supports both natural air cooling (AN) for typical load operation and forced air cooling (AF) for enhanced heat dissipation under heavy loads, helping the 2500 kVA dry type transformer maintain efficiency and reliability.