Dry Type Transformer
Dry-type transformers are oil-free, eco-friendly and highly safe power distribution units. Adopting vacuum epoxy resin casting technology, they deliver excellent insulation performance, reliable flame retardant and explosion-proof properties, pollution-free operation and maintenance-free service. Compared with traditional oil-immersed transformers, dry-type transformers completely avoid risks of oil leakage, fire and explosion, making them well suited for indoor installation, densely populated areas, high-end municipal projects and new energy power applications.
Product Introduction
Product Introduction
- Commercial & Civil Buildings: Shopping malls, office buildings, hotels, residential communities and high-end villas
- Public Infrastructure: Hospitals, schools, subways, airports and railway stations
- Industrial Production: Factory workshops, manufacturing, chemical, pharmaceutical and food industries
- New Energy Industry: Solar power stations, wind farms and energy storage power stations
- High-tech Field: Data centers, communication base stations and laboratory power distribution systems
- Urban Power Grid Engineering: Indoor distribution rooms, urban community transformer boxes and municipal power grid renovation projects
| Specification and model | Rated Capacity (kVA) | Connection Symbol | Frequency | Cooling Type | running-light current |
|---|---|---|---|---|---|
| 30 KVA Dry Type Transformer | 30 | Yyn0 Dyn11 |
50/60Hz | ONAN (Natural Air Cooled) | <4% |
| 50 KVA Dry Type Transformer | 50 | ||||
| 75 KVA Dry Type Transformer | 75 | ||||
| 100 KVA Dry Type Transformer | 100 | ||||
| 150 KVA Dry Type Transformer | 150 | ||||
| 225 KVA Dry Type Transformer | 225 | ||||
| 300 KVA Dry Type Transformer | 300 | ||||
| 500 KVA Dry Type Transformer | 500 | ||||
| 750 KVA Dry Type Transformer | 750 | ||||
| 1000 KVA Dry Type Transformer | 1000 | ||||
| 1500 KVA Dry Type Transformer | 1500 | ||||
| 2000 KVA Dry Type Transformer | 2000 | ||||
| 2500 KVA Dry Type Transformer | 2500 | ||||
| 3000 KVA Dry Type Transformer | 3000 |
Product Feature
- Environmental Impact: Due to the lack of oil, there is no risk of oil leakage into the environment, which can contaminate soil and water sources. This feature aligns with modern environmental conservation efforts and regulatory requirements.
- Safety: The most significant advantage of dry-type transformers is their safety feature. Since there is no flammable fluid like oil, the risk of fire and explosion is significantly reduced. This characteristic makes them suitable for indoor installations and locations where oil spills could pose a danger.
- Maintenance: Dry-type transformers require less maintenance than oil-filled transformers. There is no need for regular oil sampling and replacement, which simplifies the maintenance routine and reduces downtime.
- Insulation: The insulating material used in dry-type transformers must be capable of withstanding high temperatures and electric stresses. Materials such as Class H and Class F insulations are commonly used to enhance reliability.
- Customization: Manufacturers can customize dry-type transformers to meet specific requirements, such as varying voltages, capacities, and installation environments.
- Noise Level: Dry-type transformers typically operate at lower noise levels compared to oil-immersed transformers because there is no oil to create bubbling and gurgling sounds during operation.
- Temperature Rise: The temperature rise in dry-type transformers is generally higher than in oil-immersed ones due to the lack of a cooling medium. Therefore, they often require more careful consideration of ventilation and cooling.
- Overall Cost: Although the initial cost of a dry-type transformer might be higher than that of an oil-immersed transformer, the savings on maintenance and potential environmental cleanup costs can offset this over the lifespan of the product.
Quotation ahd Inquiry
To provide you with exclusive customized solutions and accurate factory quotations, please share the following project information. A general project description is acceptable if you do not have professional technical parameters:
Other Products

Oil Immersed Transformer
read more

Dry Type Transformer
read more

Other Transformer
read more

Box Type Substation
read more

Switchgear
read more
