CN216436609U - Arrangement structure suitable for 500kV platform type indoor transformer substation double-layer ground net - Google Patents
Arrangement structure suitable for 500kV platform type indoor transformer substation double-layer ground net Download PDFInfo
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- CN216436609U CN216436609U CN202123160009.3U CN202123160009U CN216436609U CN 216436609 U CN216436609 U CN 216436609U CN 202123160009 U CN202123160009 U CN 202123160009U CN 216436609 U CN216436609 U CN 216436609U
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Abstract
The utility model discloses an arrangement structure suitable for 500kV platform formula indoor transformer substation double-deck earth mat, including setting up the platform electric wire netting above ground and setting up the main grounding net below ground, be connected with a plurality of ground connection circuit between platform electric wire netting and the main grounding net. The utility model has the advantages that: this scheme is through setting up two-layer electric wire netting, can increase the total ground connection area of electric wire netting in unit area, improves space utilization, sets up the platform electric wire netting on the ground, and main grounding grid sets up underground, when the construction, only can produce the volume of digging of main grounding grid, the total volume of digging when can reducing the construction operation to can play and reduce the construction degree of difficulty, reduce the advantage such as cubic meter of earth and stone volume and engineering investment more.
Description
Technical Field
The utility model relates to a transformer substation technical field, specific theory is an arrangement structure suitable for 500kV platform-type double-deck earth mat of indoor transformer substation.
Background
With the rapid development of cities, urban power loads are rapidly increased, and a large number of high-voltage transformer substations are built in urban centers. The whole indoor transformer substation has the advantages of small occupied area, small electromagnetic radiation, small noise, high urban environment adaptability and the like, so that the urban power grid generally adopts the arrangement scheme of the indoor transformer substation. The floor area in the surrounding wall of the urban indoor transformer substation is far smaller than that of a common outdoor AIS or GIS transformer substation, and therefore the design difficulty of a grounding grid is increased.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art, the utility model aims to provide an arrangement structure suitable for 500kV platform-type double-deck earth mat of indoor transformer substation for the volume of digging when reducing construction can reduce the construction degree of difficulty, reduce the earth and stone volume, reduce the engineering investment.
The utility model discloses a following technical scheme realizes:
the utility model provides an arrangement structure suitable for 500kV platform formula indoor transformer substation double-deck earth mat, is connected with a plurality of ground connection circuit including setting up the platform electric wire netting above ground and setting up the main grounding grid below ground between platform electric wire netting and the main grounding grid.
Further, for better realization the utility model discloses, main grounding grid set up 0.8m position department below ground at least.
Further, for better realization the utility model discloses, subaerial transformer substation's platform that is provided with, the platform electric wire netting sets up in transformer substation's platform.
Further, for better realization the utility model discloses, subaerial being provided with the structure post that is used for supporting the platform of transformer substation, ground connection circuit set up in the structure post.
Further, for better realization the utility model discloses, transformer substation's platform and ground between be provided with a plurality of room.
Further, for better realization the utility model discloses, the upper surface level of transformer substation's platform.
Further, for better realization the utility model discloses, main grounding grid each department the same with the vertical distance on earth's surface.
Compared with the prior art, the beneficial effect that this scheme obtained is:
according to the scheme, by arranging two layers of power grids, the total grounding area of the power grids can be increased in a unit area, and the space utilization rate is improved on the premise that the requirements of grounding resistance, step potential and contact potential are met. The platform power grid is arranged on the ground, the main grounding grid is arranged underground, and when construction is carried out, the excavation amount of the main grounding grid can be generated only, so that the total excavation amount during construction operation can be reduced, and the advantages of reducing construction difficulty, workload and earth and stone volume, reducing engineering investment and the like can be achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
the system comprises a transformer substation platform, a platform power grid, a main grounding grid, a structural column and a grounding line, wherein the transformer substation platform is 1, the platform power grid is 2, the main grounding grid is 3, and the structural column is 4.
Detailed Description
The utility model provides an arrangement structure suitable for 500kV indoor transformer substation double-deck earth mat of platform formula, is connected with a plurality of ground connection between platform electric wire netting 2 and the main ground net 3 including setting up platform electric wire netting 2 above ground and setting up the main ground net 3 below ground.
Preferably, the main grounding grid 3 is arranged at least 0.8m below the ground.
Preferably, the ground is provided with a substation platform 1, and the platform power grid 2 is arranged in the substation platform 1.
Preferably, the ground is provided with a structural column 4 for supporting the substation platform 1, and the grounding line is arranged in the structural column 4.
Preferably, a plurality of rooms are arranged between the substation platform 1 and the ground.
Preferably, the upper surface of the substation platform 1 is horizontal.
Preferably, the structure is suitable for 500kV platform type households.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1:
as shown in fig. 1, in this embodiment, an arrangement structure suitable for a double-layer grounding grid of a 500kV platform-type indoor substation includes a platform power grid 2 disposed above ground and a main grounding grid 3 disposed below ground, and a plurality of grounding lines 5 are connected between the platform power grid 2 and the main grounding grid 3.
By arranging two layers of power grids, the total grounding area of the power grids can be increased in a unit area, and the space utilization rate is improved. The platform power grid 2 is arranged on the ground, the main grounding grid 3 is arranged underground, and only the square excavation amount of the main grounding grid 3 can be generated during construction, so that the total square excavation amount during construction operation can be reduced, and the advantages of reducing construction difficulty, construction waste, construction cost and the like can be achieved.
In this embodiment, the main grounding grid 3 is at least arranged at a position 0.8m below the ground. Because the platform power grid 2 is arranged on the ground, the laying depth of the main grounding grid 3 under the ground can be reduced under the condition of meeting the construction requirement, and the construction difficulty is favorably reduced.
Example 2:
on the basis of the above embodiment, in this embodiment, the transformer substation platform 1 is arranged on the ground, and the platform power grid 2 is arranged in the transformer substation platform 1. Utilize transformer substation platform 1 as platform electric wire netting 2's support basis, can lay platform electric wire netting 2 inside transformer substation platform 1 when construction transformer substation platform 1, guarantee platform electric wire netting 2's position accuracy and stability, make transformer substation platform 1's step potential satisfy the requirement to utilize transformer substation platform 1 to form the insulating layer, under the condition that satisfies allowwing values such as safe step potential, have construction convenience, advantage that the efficiency of construction is high.
In this embodiment, the ground is provided with a structural column 4 for supporting the substation platform 1, and the grounding line 5 is arranged in the structural column 4. The height of the structural column 4 is designed according to the requirements of actual terrain and design requirements, and the grounding circuit 5 connecting the platform power grid 2 and the main grounding 1 grid 3 is arranged in the structural column 4, so that the requirement of insulation can be met.
In order to improve the space utilization rate, a plurality of rooms and channels are arranged between the transformer substation platform 1 and the ground, and the rooms can be used as cable interlayers, equipment rooms and the like to meet the corresponding functional requirements of the transformer substation. The room height can be a part of the height design requirements of the structural columns 4.
Example 3:
on the basis of the above embodiments, in this embodiment, the upper surface of the substation platform 1 is horizontal. Therefore, the transformer substation platform 1 can be utilized to provide a horizontal supporting foundation, other work can be conveniently carried out on the transformer substation platform 1, or the platform 1 is used as a transportation channel of the whole transformer substation distribution device building, or the transformer substation platform 1 is used as a platform to construct other structures.
In this embodiment, the vertical distances between the main grounding grid 3 and the ground surface are the same. To meet the corresponding construction specifications.
When the region construction of relief is uneven, lay main grounding net 3 according to the topography to design not unidimensional structure post 4, make transformer substation's platform 1 keep the level, need not reform transform the topography, can save extra square excavation volume, avoid producing extra spoil.
In this embodiment, other undescribed contents are the same as those in the above embodiment, and thus are not described again.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (6)
1. The utility model provides an arrangement structure suitable for 500kV platform formula indoor transformer substation double-deck earth mat which characterized in that: the grounding device comprises a platform power grid (2) arranged above the ground and a main grounding grid (3) arranged below the ground, wherein a plurality of grounding circuits are connected between the platform power grid (2) and the main grounding grid (3).
2. The arrangement structure of the double-layer grounding grid suitable for the 500kV platform type indoor substation, according to claim 1, is characterized in that: the main grounding grid (3) is at least arranged at a position 0.8m below the ground.
3. The arrangement structure of the double-layer grounding grid suitable for the 500kV platform type indoor substation, according to claim 2, is characterized in that: the transformer substation platform is characterized in that a transformer substation platform (1) is arranged on the ground, and a platform power grid (2) is arranged in the transformer substation platform (1).
4. The arrangement structure of the double-layer grounding grid suitable for the 500kV platform type indoor substation, according to claim 3, is characterized in that: the ground is provided with a structural column (4) for supporting the transformer substation platform (1), and the grounding circuit is arranged in the structural column (4).
5. The arrangement structure of the double-layer grounding grid suitable for the 500kV platform type indoor substation, according to claim 3, is characterized in that: a plurality of rooms are arranged between the transformer substation platform (1) and the ground.
6. The arrangement structure of the double-layer grounding grid suitable for the 500kV platform type indoor substation according to any one of the claims 3, 4 and 5, is characterized in that: the upper surface of the transformer substation platform (1) is horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160009.3U CN216436609U (en) | 2021-12-15 | 2021-12-15 | Arrangement structure suitable for 500kV platform type indoor transformer substation double-layer ground net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160009.3U CN216436609U (en) | 2021-12-15 | 2021-12-15 | Arrangement structure suitable for 500kV platform type indoor transformer substation double-layer ground net |
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| Publication Number | Publication Date |
|---|---|
| CN216436609U true CN216436609U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123160009.3U Active CN216436609U (en) | 2021-12-15 | 2021-12-15 | Arrangement structure suitable for 500kV platform type indoor transformer substation double-layer ground net |
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| Country | Link |
|---|---|
| CN (1) | CN216436609U (en) |
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2021
- 2021-12-15 CN CN202123160009.3U patent/CN216436609U/en active Active
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