CN219917922U - GIL bus arrangement structure for neutral point connection of indoor substation single-phase transformer - Google Patents
GIL bus arrangement structure for neutral point connection of indoor substation single-phase transformer Download PDFInfo
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- CN219917922U CN219917922U CN202320587499.5U CN202320587499U CN219917922U CN 219917922 U CN219917922 U CN 219917922U CN 202320587499 U CN202320587499 U CN 202320587499U CN 219917922 U CN219917922 U CN 219917922U
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 44
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a GIL bus arrangement structure for neutral point connection of an indoor substation single-phase transformer, which is characterized in that: including GIL single phase tubing; GIS sleeve; a main transformer neutral point sleeve; a flexible wire; fitting hardware; the GIL single-phase pipeline is arranged on the wall of the main transformer neutral point side, a single-phase GIS sleeve is arranged at the position of each main transformer low-voltage side, a fitting used for connection is arranged at the end part of each GIS sleeve, and a single-phase conductor led out from the inside of each GIS sleeve is connected with the main transformer neutral point sleeve through the fitting and a flexible wire. The utility model has clear arrangement interface structure and simple lead connection, saves space on the premise of meeting the connection of the main transformer neutral point, is convenient for the operation and maintenance in the later period, can effectively improve the operation efficiency, and has stronger practicability.
Description
Technical Field
The utility model belongs to the technical field of electric facilities, and particularly relates to a GIL bus arrangement structure for neutral point connection of an indoor substation single-phase transformer in alternating current power transmission and transformation engineering.
Background
In indoor substation engineering, when the low-voltage side neutral point of a single-phase transformer is connected, an open tubular bus is generally adopted for connection. However, the transformer room of the indoor transformer substation is limited in space, the open tubular bus arrangement occupies large space, the control of the electric distance is not facilitated, and the operation and maintenance in the later period are not convenient. If the GIL pipeline is connected in a mode of combining with the oil-gas sleeve, when the main transformer withstand voltage test is carried out, the test sleeve is required to be installed independently, and the workload of the withstand voltage test is increased.
Disclosure of Invention
The utility model aims to provide a GIL bus arrangement structure for neutral point connection of an indoor substation single-phase transformer, which has clear arrangement and simple lead connection, saves space on the premise of meeting the requirement of main transformer neutral point connection, is convenient for later operation and maintenance, can effectively improve the operation efficiency, and has stronger practicability.
In order to achieve the above purpose, the utility model provides a GIL bus arrangement structure for neutral point connection of a single-phase transformer of an indoor substation, which is characterized in that: including GIL single phase tubing; GIS sleeve; a main transformer neutral point sleeve; a flexible wire; fitting hardware; the GIL single-phase pipeline is arranged on the wall of the main transformer neutral point side, a single-phase GIS sleeve is arranged at the position of each main transformer low-voltage side, a fitting used for connection is arranged at the end part of each GIS sleeve, and a single-phase conductor led out from the inside of each GIS sleeve is connected with the main transformer neutral point sleeve through the fitting and a flexible wire.
Further, the GIS bushings are arranged at the neutral point bushings of each phase main transformer.
Further, the main transformer neutral point sleeve is arranged on the side of the main transformer close to the indoor wall body.
The utility model has the beneficial effects that:
(1) The utility model can realize the connection of the neutral point side of the main transformer of the indoor substation in a limited space, is suitable for the latest design requirement, can effectively avoid the problem of short electrical distance caused by small indoor arrangement space, and improves the stability and the power supply reliability of a power grid system;
(2) According to the utility model, through the open type connection mode of the sleeve at the neutral point side of the main transformer and the GIS sleeve, the problem that a test sleeve is required to be additionally arranged for the main transformer withstand voltage in the oil-gas sleeve scheme is solved, the complexity of design and construction is reduced, and the method has popularization value in the aspect of indoor main transformer neutral point connection and wide application prospect;
(3) The GIL pipeline adopted by the utility model is a conventional single-phase GIL pipeline, adopts a conventional equipment structure and does not need to be redeveloped.
(4) The utility model fully considers the working difficulty and comfort level in the construction and operation and maintenance stage, does not need special construction technology, improves the installation and operation and maintenance efficiency, and has stronger practicability, economy and social benefit.
Drawings
FIG. 1 is a top view of the GIL bus bar arrangement of the indoor substation single-phase transformer neutral point connection of the present utility model;
FIG. 2 is a cross-sectional view of the neutral point connection of the single-phase transformer of the indoor substation of the present utility model;
FIG. 3 is a sectional view of a GIL bus bar of the low neutral point connection of the indoor substation single-phase transformer of the present utility model;
in the figure: 1. GIL single phase tubing; 2. GIS sleeve; 3. a main transformer neutral point side sleeve; 4. a flexible wire; 5. and hardware fittings.
Detailed Description
For better understanding of the purpose, structure and function of the present utility model, the present utility model relates to a GIL busbar arrangement structure for neutral point connection of an indoor substation single-phase transformer, and is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-3 of the accompanying drawings, the utility model provides a GIL bus arrangement structure for neutral point connection of an indoor substation single-phase transformer, which comprises a GIL single-phase pipeline 1, a GIS sleeve 2, a main transformer neutral point side sleeve 3, flexible wires 4 and hardware fittings 5.
The GIL single-phase pipeline 1 is compact in arrangement and small in occupied space, a GIS sleeve 2 is arranged at the low-voltage side of each phase main transformer in order to complete the connection of neutral points of three single-phase transformers, single-phase conductors are arranged in the GIL single-phase pipeline 1 and correspond to the positions of the sleeve 3 at the neutral point side of each phase main transformer, and the conductors are led out through the GIS sleeve 2 and are used for being connected with the sleeve 3 at the neutral point side of the main transformer.
The GIS sleeve 2 is correspondingly arranged at the position of the sleeve 3 at the neutral point side of each phase main transformer, is arranged on the GIL single-phase pipeline 1 and is connected with the sleeve 3 at the neutral point side of the main transformer through flexible wires 4 and hardware fittings 5.
The main transformer neutral point side sleeve 3 is an air sleeve and is connected with the GIS sleeve 2 through a flexible conductor 4 and a hardware fitting 5.
The flexible conductor 4 is used for realizing connection between the GIS sleeve 2 and the main transformer neutral point side sleeve 3, and when the GIS equipment performs a withstand voltage test, the corresponding flexible conductor and hardware fitting are removed, so that the complex disassembly and assembly work of the GIL single-phase pipeline caused by the oil gas sleeve is avoided.
The hardware fitting 5 is used for connecting the flexible conductor 4 with the GIS sleeve terminal board, is a standard connection mode, and is convenient to construct and disassemble.
The main transformer neutral point side sleeve 3 pipe needs to be arranged on the GIL single-phase pipeline 1 side, so that the flexible conductor 4 is conveniently connected with the GIS sleeve 2, the GIL single-phase pipeline 1 and the GIS sleeve 2 are firstly installed on site, then the main transformer is installed, the flexible conductor 4 and the corresponding hardware fitting 5 for connection are installed after the main transformer is in place, and then the main transformer low-voltage side can be connected with the neutral point through the connection between the parts.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should be covered by the protection scope of the present utility model by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (3)
1. A GIL bus arrangement structure for neutral point connection of an indoor substation single-phase transformer is characterized in that: comprises a GIL single-phase pipeline (1); a GIS sleeve (2); a main transformer neutral point sleeve (3); a flexible conductor (4); a hardware fitting (5); the GIL single-phase pipeline (1) is arranged on the wall of the main transformer neutral point side, a single-phase GIS sleeve (2) is arranged at the position of each main transformer low-voltage side, a hardware fitting used for connection is arranged at the end part of each GIS sleeve (2), and a single-phase conductor led out from the GIS sleeve (2) is connected with the main transformer neutral point sleeve (3) through the hardware fitting (5) and the flexible wires (4).
2. The GIL busbar arrangement structure for neutral point connection of single-phase transformers of indoor substations according to claim 1, wherein the GIS bushings (2) are arranged at the neutral point bushings (3) of each phase main transformer and are installed on the GIL single-phase pipeline (1).
3. GIL busbar arrangement for single-phase transformer neutral connection of indoor substation according to claim 2, wherein the main transformer neutral bushing (3) is arranged on the side of the main transformer close to the indoor wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320587499.5U CN219917922U (en) | 2023-03-23 | 2023-03-23 | GIL bus arrangement structure for neutral point connection of indoor substation single-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320587499.5U CN219917922U (en) | 2023-03-23 | 2023-03-23 | GIL bus arrangement structure for neutral point connection of indoor substation single-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917922U true CN219917922U (en) | 2023-10-27 |
Family
ID=88438759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320587499.5U Active CN219917922U (en) | 2023-03-23 | 2023-03-23 | GIL bus arrangement structure for neutral point connection of indoor substation single-phase transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917922U (en) |
-
2023
- 2023-03-23 CN CN202320587499.5U patent/CN219917922U/en active Active
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