Double-cooling epoxy resin pouring dry-type transformer

Abstract

The invention discloses a double-cooling epoxy resin pouring dry type transformer. The transformer structurally comprises a high-voltage terminal, clamping pieces, coil windings, a cooling box and a base; three coil windings are arranged in parallel, each top of which is connected with the clamping piece through a cushion block, and the bottoms are connected to the cooling box through cushion blocks; the cooling box is mounted on the base; compared with the prior art, the beneficial effects of the invention are that a cooling pipe which is coiled into a circle in a snake shape, a flow equalizing pipe with a gas dispersing cover, a X-shaped power set, a reciprocating rotating translation assembly, an arc-shaped gas guide cylinder and other components are arranged in a combined mode; a modeof directly adopting a fan is abandoned, a circulating water cooling mode is mainly adopted, and air cooling is used as an auxiliary mode, so that each surface of the transformer can be cooled, cooling and heat dissipation are more balanced, the phenomenon of thermal damage of the transformer is prevented, the internal winding is prevented from being damaged, and the service life of the transformer is prolonged.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a double-cooled epoxy resin casting dry-type transformer. Background technique [0002] Dry-type transformer refers to the transformer whose iron core and winding are not immersed in insulating oil. Dry-type transformer has the advantages of strong short-circuit resistance, small maintenance workload, high operating efficiency, small size, and low noise. It is often used for fire protection, explosion protection, etc. In places with high performance requirements, dry-type transformers can be divided into open type, closed type, and cast type. As far as cast dry-type transformers are concerned, they are flame-retardant, self-extinguishing, moisture-resistant, high mechanical strength, small in size, light in weight, It is widely used due to its many advantages such as strong ability to withstand short-circuit. [0003] Most of the existing cast dry-type transformers use fans...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing cast dry-type transformers use fans to ensure the smooth ventilation of the transformer and facilitate the heat dissipation of the transformer. However, three transformers are installed side by side, which will lead to poor heat dissipation on the adjacent surfaces of the transformer, resulting in unbalanced cooling and heat dissipation. High chance of thermal damage which, in the event of thermal damage, can severely damage the internal windings

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