31-08-2017, 10:03 AM
When an electric transformer is charged, the current begins to flow through its windings. Due to this flow of electric current, heat is produced in the windings, this heat ultimately increases the temperature of the transformer oil. We know that the classification of any electrical equipment depends on its allowed temperature rise limit. Therefore, if the temperature rise of the transformer insulation oil is controlled, the capacity or rating of the transformer can be extended to a significant range. The transformer radiator accelerates the cooling speed of the transformer. It therefore plays a vital role in increasing the carrying capacity of an electric transformer. This is the basic function of the radiator of an electric power transformer.
The power transformer immersed in oil is generally provided with a removable pressurized sheet radiator with isolation valves. But in the case of small size distribution transformer, the radiators are generally integrated parts of the transformer body and projected from the main tank. The operating principle of the radiator is very simple. Simply increase the surface to dissipate heat from the oil. In the case of an electric power transformer, due to the transport limitation, these units are shipped separately and are mounted in place with the main body of the transformer. At the time of issue, the radiator releases are covered by a gasket and cover plates. The radiator valves in the main tank are also covered by a gasket and cover plates.
The power transformer immersed in oil is generally provided with a removable pressurized sheet radiator with isolation valves. But in the case of small size distribution transformer, the radiators are generally integrated parts of the transformer body and projected from the main tank. The operating principle of the radiator is very simple. Simply increase the surface to dissipate heat from the oil. In the case of an electric power transformer, due to the transport limitation, these units are shipped separately and are mounted in place with the main body of the transformer. At the time of issue, the radiator releases are covered by a gasket and cover plates. The radiator valves in the main tank are also covered by a gasket and cover plates.