Balanced phase arrangement structure of transformer with four balancing sleeves

A technology for arranging structures and balancing bushings, which is applied in the field of transformers, can solve problems that are difficult to implement, and achieve the effects of reasonable layout, use of internal space, and simple structure

Pending Publication Date: 2020-09-22
BAODING TIANWEI BAOBIAN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the transformer is equipped with four balance bushings, it is difficult to realize that the low-voltage grade bushings in the prior art are arranged on the low-voltage side of the transformer in an equidistant adjacent manner.

Method used

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  • Balanced phase arrangement structure of transformer with four balancing sleeves
  • Balanced phase arrangement structure of transformer with four balancing sleeves
  • Balanced phase arrangement structure of transformer with four balancing sleeves

Examples

Experimental program
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Embodiment Construction

[0013] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0014] A balanced phase layout structure with four balanced bushing transformers. The balanced winding connection adopts the d11 connection method to make full use of the inner space of the transformer. Group, Pa, Pb is a group of adjacent arrangements, placed between high-voltage phases A and B; Pc, P0 is another group of adjacent arrangements, placed between high-voltage phases B and C.

[0015] In the embodiment, the balance bushing is arranged on the high-voltage side, and the balance winding adopts the d11 connection method. The wiring schematic diagram is shown in Figure 1; Figure 4 (top view of downlink copper bars).

[0016] Among them: signs 2, 4, 6 are paper-wrapped cables connecting the upper and lower copper bars; signs 1, 3, 5, and 10 are uplink copper bars; signs 7, 8, and 9 are downlink copper bars; and 11 is a connection balance...

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Abstract

The invention relates to a balanced phase arrangement structure of a transformer with four balancing sleeves, and belongs to the technical field of transformers. According to the technical scheme, a d11 connection method is adopted for balanced winding connection, the internal space of a transformer is fully utilized, balanced winding outlets are formed in the high-voltage side, the balanced winding outlets Pa, Pb, Pc and P0 are divided into two groups, and Pa and Pb are adjacently arranged in one group and are arranged between a high-voltage phase A and a high-voltage phase B; and Pc and P0 are arranged adjacently in the other group and are arranged between the high-voltage phase B and the high-voltage phase C. According to the invention, the problems of interference, adjacency, crossingand the like of the balanced lead and the low-voltage lead are effectively avoided; the balancing sleeves are arranged on the high-voltage side, Pa and Pb are adjacently arranged in one group, Pc andP0 are adjacently arranged in the other group, the internal space of the transformer is fully utilized, the structure is simple, and the arrangement is reasonable.

Description

technical field [0001] The invention relates to a balanced phase arrangement structure of a transformer with four balanced bushings, belonging to the technical field of transformers. Background technique [0002] At present, due to the needs of the power grid or users, some transformers require low-voltage yn0 connection. At this time, it is the zero-sequence current and the third Nth harmonic of the balance transformer, which must be placed in the balance winding of the d-connection method. When the transformer is equipped with four balance bushings, it is difficult to realize that the low-voltage level bushings in the prior art are arranged on the low-voltage side of the transformer in an equidistant adjacent manner. Contents of the invention [0003] The purpose of the present invention is to provide a balanced phase layout structure of four balanced bushing transformers, which fully utilizes the internal space of the transformer, has a simple structure and reasonable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/30H01F27/29
CPCH01F27/29H01F27/306
Inventor 兰洪顺张建彬赵延涛李德玉程文涛刘然
Owner BAODING TIANWEI BAOBIAN ELECTRICAL
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