A line variable group branch bus arrangement structure for realizing phase sequence conversion

Abstract

The utility model relates to high -voltage electrical equipment field, concretely for a kind of line variable group branch bus arrangement structure of realizing transformation phase sequence, branch bus arrangement uses the collocation of three-way shell and branch bus shell, and C phase branch position and A phase branch position are exchanged.A phase branch Z type turns, C phase branch L type turns.In the utility model, by the collocation of above-mentioned three-way shell and branch bus shell, C phase branch position and A phase branch position are exchanged, adapt to the requirement of A, C phase phase sequence position exchange, this branch bus arrangement type does not need to adjust external and internal secondary wiring, can adapt to the requirement that transformer and transmission line phase sequence position are not identical.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage electrical equipment, and in particular to a branch busbar arrangement structure for realizing phase sequence transformation of line transformer groups. Background Technology

[0002] The existing line transformer bays have the following technical problems:

[0003] 1. The phase sequence of the main transformer side of the line transformer unit must be consistent with that of the line. It cannot be applied to situations where the phase sequence positions of the transformer and the transmission line are inconsistent.

[0004] 2. When the phase sequence positions of the transformer and the transmission line are inconsistent, it is necessary to adjust the line transformer interval connection externally, which is labor-intensive and has high replacement costs. Utility Model Content

[0005] The purpose of this invention is to address the problem in the background technology that the existing transformer intervals cannot be used when the phase sequence positions of the transformer and the transmission line are inconsistent, requiring external adjustment of the line transformer interval connection, which is labor-intensive and costly to replace. The invention proposes a line transformer branch busbar arrangement structure to realize phase sequence changes.

[0006] The technical solution of this utility model is: a branch busbar arrangement structure for realizing phase sequence transformation, wherein the branch busbar arrangement adopts a combination of a three-way housing and a branch busbar housing, and the C-phase branch position is interchanged with the A-phase branch position.

[0007] Preferably, the A-phase branch has a Z-type steering and the C-phase branch has an L-type steering.

[0008] Preferably, it also includes an upper tee 1, a lower tee 1, a tee support 1, an upper tee 2, a lower tee 2, a tee support 2, a branch housing 1, a branch housing 2, a branch housing 3, a branch housing 4, and a branch housing 6; the tee support 2 is connected to the upper tee 2, the upper tee 2 and the lower tee 2 are connected through an insulating basin, the upper tee 2 turns 90 degrees and connects to the branch housing 1, the lower tee 2 is connected to the branch housing 2, the branch housing 2 passes through the branch housing 4 and the branch housing 6 and connects to the lower tee 1, the tee support 1 is connected to the lower tee 2, the lower tee 1 and the upper tee 1 are connected through an insulating basin, the upper tee 1 turns 90 degrees and connects to the branch housing 3, realizing the Z-shaped turning of the A-phase branch.

[0009] Preferably, the second tee support is bolted to the second upper tee, and the first tee support is bolted to the second lower tee.

[0010] Preferably, it also includes an upper tee three, a branch housing five, an upper tee four, and a tee support three; after the tee support three is connected to the upper tee three, the branch housing four passes through the branch housing two and connects to the upper tee three, the upper tee three connects to the branch housing five, and the branch housing five connects to the upper tee four, realizing the L-shaped turning of the C-phase branch.

[0011] Preferably, the tee support is bolted to the upper tee.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: by matching the three-way housing and the branch bus housing, the C-phase branch position and the A-phase branch position are interchanged, which can meet the requirements of the A and C phase sequence position interchange. This branch bus arrangement does not require adjustment of the external and internal secondary wiring, and can adapt to the requirements of inconsistent phase sequence positions between the transformer and the transmission line. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0014] Figure 2 for Figure 1 AA diagram;

[0015] Figure 3 for Figure 1 A schematic diagram of the N-direction.

[0016] Attached reference numerals: 1. Upper tee one; 2. Lower tee one; 3. Tee support one; 4. Upper tee two; 5. Lower tee two; 6. Tee support two; 7. Branch housing one; 8. Branch housing two; 9. Branch housing three; 10. Branch housing four; 11. Upper tee three; 12. Branch housing five; 13. Upper tee four; 14. Tee support three; 15. Branch housing six. Detailed Implementation

[0017] Example 1

[0018] like Figures 1-3 As shown, this utility model proposes a branch busbar arrangement structure for realizing phase sequence transformation. The branch busbar arrangement adopts a combination of a three-way housing and a branch busbar housing, and swaps the C-phase branch position with the A-phase branch position. The A-phase branch turns in a Z-shape, and the C-phase branch turns in an L-shape.

[0019] Example 2

[0020] like Figures 1-3 As shown, this utility model proposes a line transformer group branch bus arrangement structure for realizing phase sequence transformation. Compared with Embodiment 1, this embodiment details the structure of the A-phase branch Z-type turning.

[0021] It includes upper tee 1, lower tee 1, tee support 1, upper tee 2, lower tee 2, tee support 2, branch housing 1, branch housing 2, branch housing 3, branch housing 4, and branch housing 6; tee support 2, 6 is connected to upper tee 2, 4 and lower tee 2, 5 are connected through an insulating basin, upper tee 2, 4 is rotated 90 degrees and connected to branch housing 1, 7 and lower tee 2, 5 are connected to branch housing 2, 8 and lower tee 2, 8 pass through branch housing 4, 10 and branch housing 6, 15 and are connected to lower tee 1, 3 is connected to lower tee 2, 2 and lower tee 1, 1 is connected through an insulating basin, upper tee 1, 1 is rotated 90 degrees and connected to branch housing 3, 9, realizing the Z-shaped rotation of the A-phase branch.

[0022] Furthermore, tee support 2 6 is bolted to upper tee 2 4, and tee support 1 3 is bolted to lower tee 2 5.

[0023] Example 3

[0024] like Figures 1-3 As shown, this utility model proposes a line transformer group branch busbar arrangement structure for realizing phase sequence transformation. Compared with Embodiment 2, this embodiment details the structure of L-shaped turning of the C-phase branch.

[0025] It includes an upper tee 31, a branch housing 512, an upper tee 413, and a tee support 314; after the tee support 314 is connected to the upper tee 31, the branch housing 410 passes through the branch housing 28 and connects to the upper tee 31, the upper tee 311 connects to the branch housing 512, and the branch housing 512 connects to the upper tee 413, thus realizing the L-shaped turning of the C-phase branch.

[0026] Furthermore, the tee support 314 is bolted to the upper tee 311.

[0027] In summary, in this utility model, by combining the above-mentioned three-way housing and branch bus housing, the C-phase branch position and the A-phase branch position are interchanged, which meets the requirement of changing the phase sequence positions of A and C phases. This branch bus arrangement does not require adjustment of the external and internal secondary wiring, and can adapt to the requirement of inconsistent phase sequence positions between the transformer and the transmission line.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A branch busbar arrangement structure for realizing phase sequence transformation, characterized in that, The branch busbar arrangement adopts a combination of a three-way housing and a branch busbar housing, and swaps the C-phase branch position with the A-phase branch position.

2. The line transformer group branch bus arrangement structure for realizing phase sequence transformation according to claim 1, characterized in that, Phase A branch Z-type steering, Phase C branch L-type steering.

3. The line transformer group branch bus arrangement structure for realizing phase sequence transformation according to claim 2, characterized in that, It also includes upper tee one (1), lower tee one (2), tee support one (3), upper tee two (4), lower tee two (5), tee support two (6), branch housing one (7), branch housing two (8), branch housing three (9), branch housing four (10) and branch housing six (15); tee support two (6) is connected to upper tee two (4), and upper tee two (4) and lower tee two (5) are connected through an insulating basin, and upper tee two (4) is ninety The branch turns 90 degrees and connects to branch housing 1 (7). The lower tee 2 (5) connects to branch housing 2 (8). Branch housing 2 (8) passes through branch housing 4 (10) and branch housing 6 (15) and connects to lower tee 1 (2). Tee support 1 (3) connects to lower tee 2 (5). After lower tee 1 (2) and upper tee 1 (1) are connected through an insulating basin, upper tee 1 (1) turns 90 degrees and connects to branch housing 3 (9), thus realizing the Z-type turning of the A-phase branch.

4. The line transformer group branch bus arrangement structure for realizing phase sequence transformation according to claim 3, characterized in that, The second tee support (6) is connected to the upper tee support (4) by bolts, and the first tee support (3) is connected to the lower tee support (5) by bolts.

5. The line transformer group branch bus arrangement structure for realizing phase sequence transformation according to claim 3, characterized in that, It also includes the upper three-way three (11), the branch housing five (12), the upper three-way four (13) and the three-way support three (14); after the three-way support three (14) is connected to the upper three-way three (11), the branch housing four (10) passes through the branch housing two (8) and connects to the upper three-way three (11), the upper three-way three (11) connects to the branch housing five (12), and the branch housing five (12) connects to the upper three-way four (13), realizing the L-shaped turning of the C-phase branch.

6. The line transformer group branch bus arrangement structure for realizing phase sequence transformation according to claim 5, characterized in that, The tee support 3 (14) is bolted to the upper tee 3 (11).

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