Project Location: Thailand
Application: Regional Distribution Substation
Transformer: 30 MVA 115/22 kV Oil-Immersed Power Transformer
Key Equipment: Customized Flat Tube Transformer Radiators
Installation: On-Site Radiator Assembly
A new 115/22 kV distribution substation in Thailand was developed to support increasing electricity demand in the local area.
The project included a 30 MVA oil-immersed power transformer. Due to transportation and site installation requirements, the transformer was delivered with the main tank separated from its cooling components.
Radiastar supplied customized flat tube transformer radiators for on-site installation, providing the required cooling solution for reliable transformer operation under Thailand’s tropical climate.
The radiator installation was completed on site using a mobile crane truck.
The detachable radiator design allowed the cooling components to be transported separately and installed efficiently after the transformer tank was positioned on its foundation.
Each radiator was carefully lifted and aligned with the pre-installed mounting flanges on the transformer tank to ensure proper mechanical and oil-flow connections.
Nitrile rubber gaskets were installed between the radiator and transformer tank connections to provide reliable sealing and minimize the risk of oil leakage during operation.
The radiator system was designed for outdoor operation and integrated with the transformer’s natural oil circulation cooling system.
| Parameter | Specification |
|---|---|
| Radiator Type | Flat Tube / Fin-Type Detachable Radiator |
| Application | 30 MVA Oil-Immersed Power Transformer |
| Cooling Method | ONAN |
| Radiator Width | 520 mm |
| Radiator Height | Customized |
| Panel / Tube Thickness | 1.0–1.2 mm |
| Element Pitch | 45–50 mm |
| Connection Type | Flanged / Detachable |
| Sealing | Nitrile Rubber Gasket |
| Material | Cold-Rolled Carbon Steel |
| Surface Treatment | Anti-Corrosion Coating |
| Installation | Outdoor |
| Testing | Pressure Test & Leak Test |
Radiator height and quantity are customized according to the transformer’s thermal requirements, available installation space and mounting dimensions.
The customized flat tube radiator system was successfully installed on the 30 MVA 115/22 kV power transformer.
The detachable radiator configuration simplified transportation and on-site assembly while providing an effective cooling solution for the transformer.
The project demonstrates Radiastar’s capability to supply customized transformer radiators for power transformer projects, including radiator manufacturing, dimensional matching and on-site installation support.
Radiastar manufactures flat tube transformer radiators for oil-immersed distribution and power transformers.
Radiators can be customized according to:
Need a replacement or customized transformer radiator?
Send us your transformer specifications, existing radiator dimensions or drawings for a technical evaluation and quotation.
