High-capacity three-body split winding type transformer

A split transformer, large capacity technology, applied in the field of transformers, can solve the problems of large footprint, large short-circuit axial instability, poor safety performance, etc., to improve safety and reliability, reduce footprint and reduce mechanical force. Effect

Inactive Publication Date: 2012-05-02
BAODING TIANWEI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The split transformer of the background art is a single-phase double-split structure, and the problems are: large footprint, many peripheral devices, interruption gaps in the middle of the winding, uneven stress on the wire cake here, and the risk of short-circuit axial instability Large, poor safety performance

Method used

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  • High-capacity three-body split winding type transformer
  • High-capacity three-body split winding type transformer
  • High-capacity three-body split winding type transformer

Examples

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Effect test

Embodiment 1

[0021] Embodiment one, with reference to the attached figure 1 . The three bodies are arranged in parallel along the short axis of the transformer. The iron core is a single-phase structure, each of which is a phase. There are two windings on each column. The order of the windings from the inside to the outside is: core—low voltage winding LV1— High-voltage winding HV, or core-low-voltage winding LV2-high-voltage winding HV. There is a single-phase no-load voltage regulating switch between the two columns of each body of the transformer, which is used for high-voltage no-load voltage regulation.

Embodiment 2

[0022] Embodiment two, referring to the attached figure 2 . The three bodies are arranged sequentially along the long axis of the transformer.

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Abstract

The invention relates to a high-capacity three-body split winding type transformer and belongs to the technical field of transformers. The technical scheme is that: three transformer bodies are arranged in a transformer oil tank, and each body is a phase; each body is provided with a square iron core (1), and each square iron core is provided with two iron core columns; each iron core column is provided with a low-voltage winding and a high-voltage winding from the inner side to the outer outside; the high voltage end of the transformer is used for no-load voltage regulation, and the low voltage end is split into two windings; the low-voltage windings of the two iron core columns on each body are led out respectively, and the two three-phase low-voltage windings (2, 4) form two angular connections; and the high-voltage windings (3) of the two iron core columns on each body are led out in parallel, and the three-phase high-voltage windings form a star-shaped connection. The high-capacity three-body split winding type transformer is a three-phase transformer of which the high voltage end is used for the no-load voltage regulation, and the low voltage end is in a double-splitting structure, the occupied area of the transformer is reduced, the mechanical force of the high-capacity split winding type transformer is effectively reduced during sudden short circuit, and the safety and reliability of the operation of products are improved.

Description

technical field [0001] The invention relates to a large-capacity three-body split transformer, which belongs to the technical field of transformers. Background technique [0002] The split transformer of the background art is a single-phase double-split structure, and the problems are: large footprint, many peripheral devices, interruption gaps in the middle of the winding, uneven stress on the wire cake here, and the risk of short-circuit axial instability Large, poor safety performance. Contents of the invention [0003] The purpose of the present invention is to provide a large-capacity three-body split transformer, reduce the size of the transformer, effectively reduce the mechanical force in case of sudden short circuit, improve the safety and reliability of product operation, and solve the above-mentioned problems in the background technology. [0004] The technical scheme of the present invention is: a large-capacity three-body split transformer, three transformer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/12H01F27/30
Inventor 李程杜振斌刘力强刘强张栋范洪涛
Owner BAODING TIANWEI GRP CO LTD
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