Dry-type transformers represent the pinnacle of modern power distribution technology, designed to operate without the need for insulating oil. By employing advanced insulation materials such as epoxy resin or Nomex paper, they ensure effective current isolation and arc prevention, significantly reducing the risk of fire and environmental pollution.

Their cooling systems are highly adaptable, featuring two primary options:

• Natural Air Cooling (AN): Relies on ambient air convection for heat dissipation, ideal for normal operating conditions.

• Forced Air Cooling (AF): Utilizes built-in fans to enhance airflow, increasing the transformer's output capacity during peak loads.

These transformers offer increased operational safety, superior reliability even in harsh environments, and require zero maintenance, making them a cost-effective and eco-friendly solution for commercial buildings, industrial plants, and renewable energy systems.

Highlights:

1. Exceptional Operational Efficiency
   Designed for high performance, this transformer features minimal operational losses, low noise levels, and extremely limited partial discharge. With advanced heat dissipation capabilities, it can operate continuously at 120% capacity under forced air cooling, ensuring reliable power delivery even during peak loads.

2. Excellent Humidity Adaptability
   Built to withstand harsh environmental conditions, the transformer functions flawlessly in up to 100% humidity. Even after prolonged shutdowns, it can resume operation immediately without the need for pre-drying, saving time and maintenance effort.

3. Safe and Clean Operation
   Fully fire-resistant and pollution-free, this transformer eliminates environmental and safety risks. Its oil-free design makes it ideal for indoor installations, commercial centers, and sensitive environments where safety and cleanliness are priorities.

4. Advanced Temperature Management
   Equipped with a sophisticated temperature protection system, the transformer continuously monitors thermal conditions to ensure optimal performance. This intelligent control enhances both operational reliability and long-term safety.

5. Easy Installation & Zero Maintenance
   Engineered for simplicity, the transformer requires no maintenance throughout its service life. Its plug-and-play design reduces installation time and minimizes total operational costs, offering exceptional long-term value.

6. Proven Reliability
   Rigorously tested under real-world operating conditions, this transformer meets and exceeds the highest international reliability standards. Its robust construction ensures dependable performance in the most demanding applications.

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Our Advantages:

1. Advanced High-Voltage Windings
The high-voltage winding is vacuum cast using epoxy resin filled with high-quality fillers, ensuring low partial discharge and high electrical strength. Both the inner and outer walls of the winding are reinforced with fiberglass mesh plates, significantly increasing mechanical strength and enhancing the transformer's ability to withstand sudden short circuits.

2. Optimized Low-Voltage Foil Windings
The low-voltage winding adopts a foil structure design, eliminating the axial spiral angle issue common in wire-wound windings and ensuring balanced ampere-turn distribution. Axial cooling ducts are integrated to improve heat dissipation. DMD epoxy resin pre-impregnated cloth is used between winding layers, with overall solidification forming a robust and durable structure.

3. High-Performance Core Design
The core is constructed from high-quality cold-rolled silicon steel sheets featuring a three-step fully mitered joint structure. Core columns are bound with F-class weftless straps and surface-wrapped with epoxy resin, effectively reducing no-load loss, no-load current, and core noise. All clamps and fasteners undergo special surface treatment, enhancing both corrosion resistance and overall appearance quality.

4. Efficient Cooling System
Equipped with cross-flow top-blowing cooling fans, the transformer operates with low noise and high wind pressure. The aesthetically designed fans significantly enhance the transformer's overload capacity, ensuring reliable performance under peak loads.

5. Intelligent Temperature Control
An intelligent temperature controller is integrated to continuously monitor thermal conditions, greatly improving operational safety and reliability.

6. Customizable Protective Enclosures
Protective enclosures are available to provide enhanced safety, with protection ratings including IP20, IP23, IP30, IP33, and more. Enclosure materials can be selected from aluminum alloy, cold-rolled steel plate, stainless steel, etc., to suit various installation environments and application requirements.

Product Parameters

Production Process

Company Profile

Guangdong Shengte Electric Co., Ltd., headquartered in Foshan, China, is a distinguished transformer manufacturer renowned for reliability and exceptional after-sales service. With over a decade of experience, we have delivered high-quality, cost-efficient transformer solutions for governmental and private sector projects worldwide, earning a strong reputation for excellence. Our commitment to quality is validated by meeting the rigorous standards of German Power Utility clients—a testament to our ability to deliver only the highest-quality solutions.

Spanning 10,000 square meters, our Foshan facility is equipped with cutting-edge production and testing equipment, enabling us to offer fully customized solutions, including OEM and ODM services. Our comprehensive product portfolio includes oil-immersed transformers, resin cast dry-type transformers, pad-mounted transformers, prefabricated substations, and more.

Certified by ILAC-MRA and CNAS, our IEC certificate underscores our unwavering commitment to international quality standards. We also hold ISO9001, CE, and Innovative Product Certifications, with active pursuit of the UL certificate to further demonstrate our dedication to global compliance.

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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.