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Transposition method of eight-wire parallel-wound continuous winding

A technology of wire transposition and transposition method, which is applied in the field of transformer manufacturing, can solve the problems of increasing the load loss of the transformer and increasing the manufacturing cost of the transformer, and achieves the effect of reducing the load loss, facilitating processing and reducing the risk of short circuit within the strand.

Inactive Publication Date: 2020-08-25
上海电气集团(张家港)变压器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when 8 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.

Method used

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  • Transposition method of eight-wire parallel-wound continuous winding
  • Transposition method of eight-wire parallel-wound continuous winding

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Embodiment Construction

[0055] 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.

[0056] 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.

[0057] Please refer to figure 1 and figure 2 , figure 1 It is a flow chart of the transposition method for the 8 wires provided by the present invention and wound around the continuous winding; figure 2 Schemat...

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Abstract

The invention discloses a transposition method of an eight-wire parallel-wound continuous winding. Complete transposition of eight wires in the eight-wire parallel-wound continuous winding can be realized; the total lengths of the eight wires are equal due to the fact that the winding times of each wire in the same wire position are the same, so that the resistances of the wires are equal. Meanwhile, the magnetic flux leakage passing through the eight wires is equal, so that the induced magnetic flux leakage electromotive force of each wire is equal. Therefore, the terminal voltages of the eight wires are equal, circulating currents are prevented from being generated among the wires, and the load loss of a transformer is reduced.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing, in particular to a method for transposing 8 wires and winding continuous windings. 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. But when 8 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 trans...

Claims

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Application Information

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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