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A method of manufacturing a transformer

A manufacturing method and transformer technology, applied in the field of transformer manufacturing, can solve the problems of increasing transformer manufacturing cost, increasing transformer load loss, etc., and achieve the effects of reducing load loss, avoiding circulating current, and good manufacturability

Active Publication Date: 2022-04-05
上海电气集团(张家港)变压器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when five wires are wound in parallel, the transposition according to the traditional standard transposition method is incomplete transposition, and the wound winding will generate circulating current, which will increase the load loss of the transformer and increase the manufacturing cost of the transformer.

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  • A method of manufacturing a transformer
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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Please refer to figure 1 with figure 2 , figure 1 A flow chart of the manufacturing method of the transformer provided by the present invention; figure 2 Schematic diagram for transposition of 7 wires. ...

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Abstract

The invention discloses a manufacturing method of a transformer, which is used for a continuous winding transformer with 7 wires connected in parallel, which can realize the complete transposition of the 7 wires in the 7 wire parallel winding, because each wire is wound in the same wire position The number of times is the same, so the total length of the 7 wires is equal, making the resistance of the wires equal. At the same time, the leakage magnetic flux passing through the 7 wires is equal, so the induced magnetic leakage electromotive force of each wire is equal. Furthermore, the terminal voltages of the seven wires are equalized, the circulation current between the wires is avoided, and the load loss of the transformer is reduced.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing, in particular to a manufacturing method of a transformer. Background technique [0002] In the design of large capacity oil-immersed transformer winding structure, continuous winding is the most commonly used winding form. As we all know, the transposition of a continuous winding with one wire or two wires wound in parallel according to the traditional standard transposition method is a complete transposition without circulating current, which is the basic structural form of the continuous winding. However, when five wires are wound in parallel, the transposition according to the traditional standard transposition method is incomplete transposition, and the wound winding will generate circulating current, which will increase the load loss of the transformer and increase the manufacturing cost of the transformer. [0003] Therefore, how to realize complete transposition when 7 w...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/04H01F41/06
CPCH01F41/04H01F41/06
Inventor 李永新刘建华
Owner 上海电气集团(张家港)变压器有限公司