What Transformer Capacities Can Panel Radiators Support?

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Diagram of transformer panel radiator configurations for different transformer capacities, highlighting losses, cooling methods and operating conditions.

Transformer Panel Radiator Capacity Range

TengQi Technology (TQT) offers transformer panel radiator solutions for distribution and power transformers rated from 10 kVA to 500 MVA and above, with voltage ratings from 10 kV to 500 kV. The specific configuration depends on the required cooling load and the project’s actual design conditions.

Transformer rated capacity alone does not determine radiator selection. Transformer losses, cooling method and operating conditions must also be assessed to determine the appropriate radiator quantity, dimensions and arrangement.

Key Parameters for Radiator Selection

Rated capacity and voltage: the transformer’s capacity and voltage rating.
No-load and load losses: the loss data used to determine the heat that must be dissipated.
Cooling method: including ONAN, ONAF and OFAF arrangements.
Operating conditions: ambient temperature, altitude and allowable temperature rise.
Installation constraints: available installation space and radiator bank layout.
Cooling and connection requirements: oil flow requirements, fan-assisted cooling requirements and connection dimensions.

Configuration Considerations for Different Transformer Capacities

For small distribution transformers, a compact radiator configuration may meet the cooling requirements. Medium and large power transformers typically require multiple radiator banks, larger panel assemblies or fan-assisted cooling to achieve the required heat dissipation.

Even transformers within the same capacity range may require different panel radiator configurations because their losses, cooling methods and environmental conditions differ.

Information Needed to Determine the Configuration

To support radiator panel quantity, sizing and layout recommendations, provide TengQi Technology with the transformer’s rated capacity, cooling method, loss data, voltage rating and operating environment. These parameters form the basis for selecting a project-specific panel radiator solution to meet the transformer’s cooling needs and support long-term reliable operation.