A dry-type transformer with heat dissipation device and its control system

Abstract

The invention provides a dry type transformer with a radiating apparatus, and a control system for the dry type transformer. The dry type transformer comprises a base, an iron core and a coaxial winding which coats the iron core, wherein the winding is a hollow type insulating winding; the winding comprises a low-voltage coil, a cooling air channel and a high-voltage coil; the low-voltage coil is an inner coil while the high-voltage coil is an outer ring; the cooling air channel is formed between the inner ring and the outer ring; the dry type transformer also comprises a radiating apparatus and a cooling circulating structure; the cooling circulating structure is connected with the radiating apparatus; the radiating apparatus is arranged on the surfaces, in contact with the cooling air channel, of the low-voltage coil and the high-voltage coil; and the cooling circulating structure is arranged on the exterior of the radiating apparatus. The dry type transformer is additionally provided with the radiating apparatus and the cooling radiating structure, so that the cooling effect is greatly improved; the dry type transformer also comprises a temperature detecting apparatus, a temperature monitoring apparatus, an executing mechanism and a warning apparatus, so that the radiating apparatus can be controlled according to actual conditions; the range of application of the dry type transformer is expanded; and in addition, the overall dry type transformer is convenient to detach and maintain, and safe and practical.

Description

technical field [0001] The invention relates to the technical field of transformer equipment, in particular to a dry-type transformer with a cooling device and a control system thereof. Background technique [0002] The existing dry-type transformer includes a base, an iron core and a winding wrapped on the iron core. The winding is a hollow insulated winding. The winding includes a cooling air passage, an inner ring and an outer ring, and the cooling air passage is located between the inner ring and the outer ring. The inner ring is equipped with a low-voltage coil, the outer ring is equipped with a high-voltage coil, and a fan is fixed on the base of the dry-type transformer. Dissipate heat away from the transformer. However, when the load of the transformer is too large, the low-voltage coils and high-voltage coils in the inner and outer rings will generate a large amount of heat. If the heat production cannot keep up with the heat dissipation, the coils will easily burn...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of uneven heat dissipation and slow heat dissipation of transformers in the prior art, the present invention provides a dry-type transformer with a heat dissipation device and its control system

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