Oil-immersed power transformer

Abstract

The invention discloses an oil-immersed power transformer, which comprises a transformer housing; heat dissipation fins are arranged on the surface of the transformer shell; the upper surface of the transformer shell is fixedly connected with a heat dissipation device; the heat dissipation device comprises an n-shaped frame; the bottom of the n-shaped frame is fixedly connected with the upper surface of the transformer shell; a motor is fixedly connected to the upper surface of the n-shaped frame; a first shaft is fixedly connected to the bottom of an output shaft on the motor; a second gear is meshed with the side face of the first gear; a second shaft is fixedly connected to the inner wall of the second gear; and the top of the second shaft rotates on the top of the inner wall of the n-shaped frame in a limited mode. According to the transformer, through cooperative use of the structures, the problems that in the actual use process, due to the fact that airflow pushed by traditionalfan blades in the rotating process is difficult to blow the whole surface of the transformer, heat dissipation of the surface of the transformer is not complete enough, efficiency is low, and inconvenience is brought to use are solved.

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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