Full casting dry type transformer with top for heat dissipation

Abstract

The invention discloses a full casting dry type transformer with a top for heat dissipation. The full casting dry type transformer with the top for the heat dissipation comprises an iron core, coils and insulating resin; silicone grease which serves as heat dissipation mediums is arranged at the top of the iron core; an aluminum alloy casing is coated on the external side of the silicone grease; and cooling fins are arranged on the surface of the aluminum alloy casing. According to the full casting dry type transformer with the top for the heat dissipation, the insulated silicone grease which is utilized to serve as the heat dissipation mediums is arranged at the top of the iron core and the heat dissipation is performed through the cooling fins, so that the heat dissipation effect is good, the transformer temperature rising is reduced, and the transformer service life is prolonged.

Description

technical field [0001] The invention relates to heat dissipation of a transformer, in particular to a fully cast dry-type transformer with top heat dissipation. Background technique [0002] With the development of all walks of life in the national economy, various electricity consumption units have emerged in our country. For example, distribution transformers in some steel mills, metallurgical plants and other industries must be placed in relatively narrow equipment spaces, so the requirements for the dimensions of distribution transformers are very strict. In order to reduce the overall size of the transformer, there are now fully cast dry-type transformers on the market. All the insulation between the high and low voltage, the low voltage and the iron core of this transformer is made of cast resin, so the insulation distance of the coil can be reduced, thereby reducing the overall size of the transformer. . However, due to the lack of fluid heat dissipation medium in t...

AI Technical Summary

Problems solved by technology

However, due to the lack of fluid heat dissipation medium in the fully cast transformer, the heat dissipation effect of the transformer is not good, which increases the temperature rise of the transformer and reduces the service life of the transformer.

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