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A dry type transformer

A dry-type transformer and transformer technology, applied in the field of transformers, can solve the problems of inability to provide air volume, affecting the overload capacity of dry-type transformers, and achieve the effect of high overload capacity

Active Publication Date: 2016-05-25
CHANGSHU CHANGYUAN TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dry-type transformers rely on air convection for cooling during normal operation. When there is an overload demand, dry-type transformers are mainly cooled by installing fans. Usually, the fans are installed directly on the feet. Once fixed, they cannot be moved. If the fan is not installed In the best position, the maximum air volume cannot be provided to the winding of the dry-type transformer, thus affecting the overload capacity of the dry-type transformer

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] see figure 1 with figure 2 , the embodiment of the present invention includes:

[0017] A dry-type transformer includes a transformer main body 10 , several fans 21 , 22 , a fixing frame 30 and a hanging screw 51 .

[0018] The fixing frame 30 is installed on the bottom of the transformer main body 10 through a plurality of hanging screws 51 , and the fans 21 and 22 are detachably mounted on the fixing frame 30 . Fans 21, 22 are respectively located on both sides of the transformer body 10, specifically on both sides of the winding of the transformer body 10, the number of fans 21, 22 corresponds to the number of windings in the transfo...

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Abstract

The invention discloses a dry type transformer, which comprises a transformer main body and a plurality of fans arranged at the bottom of the transformer main body; the dry-type transformer further comprises a fixing frame; the fixing frame is arranged at the bottom of the transformer main body through hanging screws; and the plurality of fans are detachably arranged on the fixing frame. According to the dry-type transformer provided by the invention, the installation position of the fans can be adjusted, so maximum wind volume is provided for a winding of the transformer, thereby ensuring higher overlaod capability of the dry-type transformer.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a dry-type transformer. Background technique [0002] Compared with oil-immersed transformers, dry-type transformers are transformers in which the core and windings are not immersed in insulating liquid. They are generally used in hospitals, schools, residential quarters, and industrial and mining enterprises. The overload capacity of a dry-type transformer is related to the ambient temperature, the load before overload (initial load), the insulation and heat dissipation of the transformer, and the heating time constant. Therefore, the cooling performance of the dry-type transformer is also very important to its overload capacity. Dry-type transformers rely on air convection for cooling during normal operation. When there is an overload demand, dry-type transformers are mainly cooled by installing fans. Usually, the fans are installed directly on the feet. Once fixed, they cannot be m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/00H01F27/08
Inventor 俞文明王建林冯向军
Owner CHANGSHU CHANGYUAN TRANSFORMER