Dry-type transformers operate without insulating oil, utilizing advanced insulation materials to ensure reliable current isolation and effective arc prevention. Their 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 with safety and performance in mind, these transformers 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
   Features low operating losses, quiet performance, and minimal partial discharge. Thanks to its advanced heat dissipation design, the transformer can operate continuously at 120% capacity when forced air cooling is engaged.

2. Excellent Humidity Adaptability
   Designed to perform reliably in environments with up to 100% humidity. Even after extended shutdowns, it can return to service immediately—no pre-drying required.

3. Safe and Clean Operation
   Fully fire-resistant and free from pollution, this transformer eliminates environmental hazards and enhances safety, making it ideal for indoor and sensitive installations.

4. Superior Temperature Management
   Equipped with a sophisticated temperature protection system that continuously monitors thermal conditions, ensuring long-term reliability and safe operation.

5. Simple Installation & Zero Maintenance
   Engineered for quick and easy installation, the transformer requires no maintenance over its entire lifespan, helping to minimize total operational expenses.

6. Proven Reliability
   Rigorously tested under real-world operating conditions, the transformer meets the highest international reliability standards, delivering consistent and dependable performance.

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

Q1: Are you a manufacturer or trading company?

A1: Our factory covers an area of over 10000m², we can produce 2000 more transformers each year.

Q2: Do you have the relevant certifications and test reports?

A2: Yes, we have ISO9001 and CE certification, and can provide the test reports according to IEC standard.

Q3: How long is the warranty period?

A3: It is 12 months.

Q4: Would you accept using customer's logo?

A4: Yes, we can provide OEM and ODM service.

Q5: What's the MOQ?

A5: It is 1 set.

Q6: What are the payment methods and terms?

A6: We accept T/T, Western Union, PayPal, etc. 30% advance payment before production, 70% balance payment before delivery.

Q7: How long is the delivery time?

A7: Generally it is 20-30 days, it depends on the order quantity.

Q8: What is the standard of package?

A8: Wooden case or special package according to customer's requirement.