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 for safety and durability, these transformers deliver superior reliability, require zero maintenance, and provide an environmentally friendly solution for modern power distribution needs.

Highlights:

1. Exceptional Operational Efficiency
   Low operational losses, minimal noise, and extremely limited partial discharge. Advanced heat dissipation enables 120% continuous operation under forced air cooling, ensuring reliable performance during peak loads.

2. Excellent Humidity Adaptability
   Functions flawlessly in up to 100% humidity. Even after prolonged shutdown, the transformer can resume operation immediately without any pre-drying process.

3. Safe & Clean Operation
   Fully fire-resistant and pollution-free, eliminating fire hazards and environmental risks. The oil-free design makes it ideal for indoor and sensitive environments where safety and cleanliness are priorities.

4. Intelligent Temperature Management
   Equipped with an advanced temperature protection system that continuously monitors thermal conditions, enhancing both long-term reliability and operational safety.

5. Easy Installation & Zero Maintenance
   Simple plug-and-play design requires no maintenance throughout its entire service life, significantly reducing total operational costs.

6. Proven Reliability
   Rigorously tested under real-world operating conditions, the transformer meets and exceeds the highest international reliability standards with robust construction and stable performance.

Our Advantages:

1. High-Voltage Windings
The high-voltage windings are vacuum-cast using epoxy resin with mineral fillers, achieving low partial discharge and excellent dielectric strength. Reinforced internally and externally with fiberglass mesh, the windings offer enhanced mechanical robustness and superior resistance to sudden short circuits.

2. Low-Voltage Windings
The low-voltage windings feature a foil-wound design that eliminates the axial spiral angle found in traditional wire windings, ensuring perfect ampere-turn balance. Axial ventilation channels are built in for optimal heat dissipation, while DMD epoxy pre-impregnated insulation between layers creates a fully cured, solid structure.

3. Core Construction
Manufactured from high-grade cold-rolled silicon steel, the core utilizes a three-step mitered joint configuration. Core legs are secured with F-class weftless binding straps and coated with epoxy resin to minimize no-load loss, reduce excitation current, and lower operational noise. All clamping components receive specialized surface finishing for improved durability and aesthetics.

4. Cooling System
The transformer is fitted with cross-flow top-mounted cooling fans that deliver quiet operation and strong airflow. Their streamlined design not only enhances overload capacity but also complements the overall appearance of the unit.

5. Temperature Monitoring
A built-in intelligent temperature controller provides real-time thermal monitoring, safeguarding the transformer against overheating and ensuring long-term operational safety.

6. Protective Enclosures
A range of protective enclosures is available to meet different installation needs, offering ingress protection ratings from IP20 to IP33. Options include aluminum alloy, cold-rolled steel, and stainless steel, allowing customization for various environmental conditions.

Product Parameters

Production Process

Company Profile

Guangdong Shengte Electric Co., Ltd.，strategically located in Foshan, China, has established itself as a trusted name in the transformer industry, recognized for unwavering reliability and responsive after-sales support. With more than ten years of industry expertise, we have successfully partnered with government agencies and private enterprises across the globe, delivering transformer solutions that balance advanced performance with cost efficiency.

Quality That Meets Global Standards
Our dedication to excellence is reflected in our ability to satisfy the demanding requirements of German Power Utility clients—one of the most stringent benchmarks in the industry. We are proud to hold ISO9001, CE, and Innovative Product Certifications, with the UL certification actively underway, reinforcing our commitment to international compliance.

Manufacturing Capabilities & Product Portfolio
Our Foshan facility spans 10,000 square meters and is outfitted with state-of-the-art production lines and precision testing instruments. This infrastructure allows us to provide tailored solutions, including OEM and ODM services, to meet diverse project specifications. Our extensive product lineup includes oil-immersed transformers, resin cast dry-type transformers, pad-mounted transformers, prefabricated substations, and more—all backed by ILAC-MRA and CNAS certified 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.