An oil-immersed power transformer

Abstract

The invention discloses an oil-immersed power transformer, which comprises a transformer casing, the surface of the transformer casing is provided with heat dissipation fins, the upper surface of the transformer casing is fixedly connected with a heat dissipation device, and the heat dissipation device includes an n-shaped frame, The bottom of the n-shaped frame is fixedly connected with the upper surface of the transformer casing, the upper surface of the n-shaped frame is fixedly connected with a motor, the bottom of the output shaft of the motor is fixedly connected with shaft one, and the side of the gear one meshes with There is a gear two, the inner wall of the second gear is fixedly connected with the second shaft, and the top of the second shaft rotates at the upper limit of the inner wall of the n-shaped frame. In the present invention, through the cooperative use of the above-mentioned structures, it is difficult to blow the entire surface of the transformer due to the airflow driven by the traditional fan blades during rotation, which makes the heat dissipation on the surface of the transformer not complete and the efficiency Low, which brings inconvenience to use.

Description

technical field [0001] The invention relates to the technical field of transformer equipment, in particular to an oil-immersed power transformer. Background technique [0002] The low-voltage windings of oil-immersed transformers generally adopt a cylindrical structure with copper foil winding, except for small-capacity copper wires. The high-voltage winding adopts a multi-layer cylindrical structure, so that the ampere-turn distribution of the winding is balanced, the magnetic flux leakage is small, the mechanical strength is high, and the short-circuit resistance is strong. Classified according to the structural form, it can be divided into iron core transformers and iron shell transformers. If the winding is wrapped around the iron core, it is an iron core transformer; if the iron core is wrapped around the winding, it is an iron shell transformer. The two are only slightly different in structure, and there is no essential difference in principle. Power transformers ar...

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Problems solved by technology

[0003] However, in actual use, because the airflow driven by the traditional fan blades is difficult to blow the entire surface of the transformer, the heat dissipation on the surface of the transformer is not complete, the efficiency is low, and it is inconvenient to use.

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