With the rapid expansion of power infrastructure and increasing transformer loads worldwide, efficient cooling systems have become essential for ensuring transformer reliability and grid stability. Recently, RADIASTAR successfully completed a transformer radiator supply and installation project for a 110kV utility substation in Vietnam.
The project involved the replacement and installation of detachable panel-type transformer radiators for a large oil-immersed power transformer operating in a high-temperature outdoor environment.
This case demonstrates RADIASTAR’s expertise in transformer radiator manufacturing, export logistics, and customized cooling solutions for global power infrastructure projects.
Vietnam
110kV Power Transformer Radiator Replacement & Upgrade
Utility transmission substation
Based on the installation scene and typical 110kV substation configuration, the transformer specifications for this project were designed as follows:
| Parameter | Specification |
|---|---|
| Transformer Type | Oil-Immersed Power Transformer |
| Rated Capacity | 20MVA |
| Voltage Rating | 110kV / 35kV |
| Cooling Method | ONAN / ONAF |
| Frequency | 50Hz |
| Phase | Three Phase |
| Insulation Class | Class A |
| Cooling Equipment | Detachable Panel Radiators |
| Radiator Material | High-Strength Cold Rolled Steel |
| Surface Treatment | Hot-Dip Galvanized + Industrial Coating |
| Operating Environment | Outdoor Utility Substation |
| Ambient Temperature | -10°C to +45°C |
| Installation Altitude | ≤1000m |
