In oil-immersed transformers, the core is immersed in oil inside the transformer vessel. As a result of induction, heat is generated in the active part of the transformer. This heat must be eliminated in order to increase the efficiency of the transformer, to maintain the quality of the materials that make up the active part components and to prolong the life of the transformer. The transformer boiler provides isolation of the oil and core from the external environment and performs the cooling process to eliminate this heat.
