He' Nan Chineng Electric Power Equipment Co., Ltd
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Oil-immersed Power Transformer: Core Components and Functional Analysis
Feb 14,2025
Oil-immersed power transformer is one of the core equipments in the power system, which is widely used in the field of power transmission and distribution. Its main function is to convert high voltage into low voltage to meet the needs of various power equipment. Its structure and working principle is unique, with a high degree of reliability and stability.
First, the basic structure of oil-immersed power transformer is mainly composed of iron core, winding, oil tank, insulating oil, cooling device and other parts. Among them, the iron core is the magnetic circuit of the transformer, the winding is the circuit. The insulating oil plays the role of cooling and insulation, while preventing the winding from overheating. The oil tank provides protection for the transformer to ensure that it operates in a safe environment.
Second, the principle of operation when the AC current through the winding, the magnetic field generated by the iron core makes the current in the winding change, so as to achieve the voltage conversion. This conversion is achieved through the principle of electromagnetic induction, in which the insulating oil plays a role in cooling and heat dissipation, to ensure that the transformer remains stable over a long period of operation.
Third, the characteristics of oil-immersed oil-immersed power transformer is mainly characterised by its good heat dissipation performance, long life, easy maintenance. Because of its use of oil-immersed way, so that the winding and core and other key components can be fully cooled, thus improving the efficiency and life of the transformer. In addition, oil-immersed transformer in operation, through the oil cycle to achieve natural cooling, without additional cooling equipment.
Fourth, the practical application in the power system, oil-immersed power transformers play a vital role. Whether it is urban power grid or industrial power, all need to rely on oil-immersed power transformers to achieve voltage conversion and distribution. Its wide range of applications include power plants, substations, industrial parks, residential communities and so on.
Summary oil-immersed power transformer as the core equipment of the power system, with a high degree of reliability and stability. Its structure is compact, the working principle is simple and clear, making it outstanding in practical applications. With the progress of science and technology, oil-immersed power transformers are also constantly undergoing technological upgrades and improvements to meet a wider range of application requirements. From structure, principle to application, oil-immersed power transformer is an indispensable part of the power system.
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