A Panel-type Transformer Radiator is a high-efficiency cooling component designed for oil-immersed power transformers. By using a compact plate and fin structure, it increases heat dissipation efficiency while reducing installation space and transformer oil requirements.
Compared with traditional tubular radiators, plate-type transformer radiators provide optimized oil flow channels, larger heat transfer surfaces, and flexible modular configurations, making them widely used in high-voltage power transformer cooling systems.
Radiastar manufactures customized transformer cooling radiators for transformer manufacturers, utilities, EPC contractors, and industrial power projects worldwide.
A Panel-type Transformer Radiator, also called a plate-type transformer radiator, is a cooling device consisting of multiple pressed steel panels connected together to form a heat exchange structure.
During transformer operation:
This continuous oil circulation maintains transformer temperature within safe operating limits and improves transformer reliability.
The advanced plate and fin design provides:
The optimized structure helps transformers maintain stable operation under high load conditions.
Compared with conventional cooling solutions, panel-type radiators offer:
This makes them suitable for projects where space optimization is important.
The radiator panels can be configured according to transformer requirements, including:
Multiple panels can be assembled to achieve the required cooling performance.
Transformer radiators are often installed outdoors and exposed to challenging environments.
Available protection options include:
These solutions improve service life in:
Panel-type radiators are widely used in:
Suitable for:
Common applications include:
Used for:
Panel radiators are also applied in transformer refurbishment projects to:
| Parameter | Specification |
|---|---|
| Product Type | Panel-type Transformer Radiator |
| Application | Oil Immersed Power Transformer |
| Voltage Range | 110kV – 550kV |
| Cooling Method | ONAN / ONAF |
| Material | Cold Rolled Steel / Stainless Steel |
| Panel Thickness | 1.2mm – 2.0mm |
| Center Distance | 500mm – 1500mm Customized |
| Panel Width | Customized According to Design |
| Number of Panels | Designed According to Cooling Requirement |
| Oil Circulation | Natural Oil Circulation / Forced Oil Circulation |
| Surface Treatment | Painting / Hot Dip Galvanizing / Customized Coating |
| Installation Type | Fixed or Detachable Structure |
ONAN means:
Oil Natural Air Natural
The transformer oil circulates naturally through the radiator, while heat is released through natural air cooling.
Advantages:
Suitable for:
ONAF means:
Oil Natural Air Forced
Cooling fans increase airflow through the radiator surface.
Advantages:
Common applications:
| Feature | Panel-type Radiator | Traditional Radiator |
|---|---|---|
| Heat Transfer Area | High | Medium |
| Installation Space | Compact | Larger |
| Weight | Lower | Higher |
| Cooling Efficiency | Optimized | Standard |
| Customization | Flexible | Limited |
| Maintenance | Easy | Normal |
Every transformer project has different cooling requirements.
Radiastar provides OEM and ODM services based on:
Our engineering team can provide:
Radiastar focuses on manufacturing reliable transformer cooling solutions for global customers.
Our advantages include:
We support:
A panel-type transformer radiator is a cooling device using multiple plate-shaped panels to increase heat transfer efficiency for oil-immersed transformers.
Panel radiators use flat plate structures with optimized heat transfer surfaces, while tubular radiators use multiple tubes for oil circulation. Panel radiators generally provide compact design and flexible installation options.
Yes. Dimensions, panel quantity, cooling capacity, material, and surface coating can be customized according to transformer specifications.
Panel-type radiators are commonly used for:
Customers usually need to provide:
A Panel-type Transformer Radiator provides an efficient, compact, and reliable cooling solution for modern oil-immersed transformers.
With optimized heat transfer performance, flexible configuration, and customized manufacturing capability, it is widely used in high-voltage power systems, substations, industrial facilities, and transformer upgrade projects.
Radiastar delivers professional transformer cooling radiator solutions designed to meet global engineering requirements.
