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A single-tank double-body autotransformer

An autotransformer and main transformer technology, applied in the field of transformer manufacturing, can solve problems such as inability to meet a wide range of needs and a single voltage regulation method, and achieve the effects of improving labor productivity, multiple working positions, and ensuring product performance.

Active Publication Date: 2017-12-19
TBEA SHENYANG TRANSFORMER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of the autotransformer in the prior art, such as the single voltage regulation mode and the inability to meet the needs of a wide range, the technical problem to be solved by the present invention is to provide a single-tank double-body autotransformer that can meet the requirements of a wide range of voltage regulation

Method used

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  • A single-tank double-body autotransformer
  • A single-tank double-body autotransformer
  • A single-tank double-body autotransformer

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Embodiment Construction

[0021] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.

[0022] Such as figure 1 , 2 As shown, the present invention is an autotransformer with single oil tank and double body. The double body includes a main transformer body and a compensation transformer body, wherein the main transformer body has a third winding T, a low-voltage voltage regulating winding L, and a common winding D And the series winding G, the arrangement of each winding from the inside to the outside of the iron core column is: the third winding T-low voltage voltage regulating winding L-common winding D (ie low voltage winding) - series winding G (ie high voltage winding); The load tap is placed inside the series winding. The body of the compensation transformer has a compensation winding B and an excitation winding J, and the arrangement of each winding from the inside to the outside of the iron core column is: compensation windin...

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Abstract

The invention relates to an autotransformer with single oil tank and double body. The double body includes a main transformer body and a compensating transformer body. The arrangement of the windings from the inside to the outside of the core column is: third winding-low voltage regulating winding-common winding-series winding; the body of the compensation transformer has a compensation winding and an excitation winding, and each winding is arranged from the inside to the outside of the core column The method is: compensation winding B-excitation winding J; the body of the main transformer and the body of the compensation transformer are placed in the same oil tank. The invention can meet the requirements of large-scale voltage regulation, can effectively reduce the voltage deviation range of the third winding, improve the operation quality of the high-voltage to the third winding and the low-voltage to the third winding, not only reduce the switch voltage level, but also reduce the selection of switches. Quantity, which greatly improves labor productivity and increases the reliability of operation.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing, in particular to a single oil tank double body autotransformer. Background technique [0002] At present, 220KV transformers for power equipment generally adopt constant magnetic flux voltage regulation in China, and the required number of voltage regulation taps is small and the voltage regulation tap position is single. This kind of voltage regulation method has little effect on the small change of the power grid, and it cannot capture the subtle changes of the power grid in an instant. At the same time, because the transformer is a variable flux voltage regulation, the potential of the turns at each tap position changes, and the voltage deviation of the third winding larger. However, the current industry and economy are increasingly developed, resulting in a large demand for industrial electricity and a wider range of voltage regulation. A single voltage regulation method ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/00H01F27/30H01F27/28
Inventor 廖金木王晖马志凯
Owner TBEA SHENYANG TRANSFORMER GRP CO LTD
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