The main source of heat generation in the transformer is copper loss or I2R loss. Although there are other factors that contribute to heat in the transformer, such as hysteresis and Eddy current losses, these are dominated by the contribution of I2R loss.
If the heat due to losses is not properly dissipated, the temperature of the transformer will continuously rise, which will cause damage to the transformer's paper insulation and liquid insulation medium. Therefore, it is essential to control the temperature within the allowable limit to prevent thermal degradation of the insulation system and ensure the long life of the transformer.
The rising temperature in the transformer core increases the kinetic energy of the cooling oil molecules. The cooling oil molecules with high kinetic energy are displaced by molecules with low kinetic energy and move towards the wall of the transformer tank. Radiators provide cooling by increasing the contact surface of the heated oil with the atmosphere. This cooling is provided by natural air or forced air flowing through the fins.
Radiators can be produced in 240mm, 300mm and 380mm widths.
| SN | ITEM | DESCRIPTION |
| 1 | Radiator Type | Top tube, goose neck, top panel |
| 2 | WIDTH | 300mm, 310mm, 380mm, 450mm, 480mm, 520mm, 535mm |
| 3 | MATERIAL | Carbon steel, stainless steel |
| 4 | THICKNESS | 1mm, 2mm |
| 5 | CENTER DISTANCE | As required |
| 6 | WELDING | O2 or CO2 |
| 7 | NUMBER OF SECTIONS | As required |
| 8 | INTERSECTION DISTANCE | 40mm, 45mm, 50mm |
| 9 | SURFACE TREATMENT | Bare, custom painted, or hot-dip galvanized |
