CN212114043U - High-voltage electrical equipment grounding system on multi-layer steel structure platform - Google Patents
High-voltage electrical equipment grounding system on multi-layer steel structure platform Download PDFInfo
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- CN212114043U CN212114043U CN202021150187.0U CN202021150187U CN212114043U CN 212114043 U CN212114043 U CN 212114043U CN 202021150187 U CN202021150187 U CN 202021150187U CN 212114043 U CN212114043 U CN 212114043U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 claims abstract description 80
- 239000010949 copper Substances 0.000 claims abstract description 80
- 238000003466 welding Methods 0.000 claims abstract description 14
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 claims 7
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000005219 brazing Methods 0.000 description 4
- 239000003984 copper intrauterine device Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a high-voltage electrical equipment grounding system on a multilayer steel structure platform, which comprises a grounding ring network flat copper arranged on each layer of steel platform; the grounding looped network flat copper of each layer is respectively welded or connected with the corresponding grounding down-lead flat copper through a first silver-copper welding spot, each grounding down-lead flat copper is respectively led to the grounding down-lead of the steel platform supporting leg along the steel platform upright post, and the grounding down-lead of the steel platform supporting leg is connected with the underground concealed grounding net; the grounding system of the high-voltage electrical equipment can reduce the material consumption, the installation engineering amount and the construction operation difficulty of the grounding system of the high-voltage electrical equipment on a multi-layer steel structure platform, shorten the construction period, reduce the load of the steel structure platform, reduce the operation safety and quality risk and ensure that the grounding wire is arranged compactly and beautifully.
Description
Technical Field
The utility model relates to a high-voltage electrical equipment ground system on two-layer and above multilayer steel structure platform to among the power transmission and transformation engineering of electric power system.
Background
The steel structure platform (hereinafter referred to as steel platform) is widely applied to electric power engineering due to the advantages of stable structure, quick installation, good adaptability to surrounding buildings and small occupied area. With the increase of the types and the number of high-voltage electrical equipment installed on the steel platform and the requirement of industrial specifications, such as 'main equipment, equipment frameworks and the like, two grounding downleads connected with different main lines of a main grounding grid are suitable, each grounding downlead meets the requirement of thermal stability check', and the like, the requirement of a main equipment grounding system is higher and higher, and the arrangement of the grounding system on the steel platform is more and more complex. Particularly, the layout design of the main equipment grounding system on the multi-layer steel platform which is simultaneously provided with main equipment such as a lightning arrester, a CVT (continuously variable transmission), a post insulator, a GIS (geographic information system) sleeve and a branch bus and steel posts thereof is more difficult to realize simplicity, attractiveness and compliance. The conventional arrangement method is that single-phase platform equipment on each layer of steel platform is led to the concealed laying ground grid lead-up wire position of the ground through independently selecting paths of the grounding flat copper on the two sides of the equipment steel support, when the number of the equipment on the steel platform is large, the grounding flat copper used in the conventional arrangement method is large in number and weight, the steel platform load is increased, the ground wire arrangement is complex, the ground wire arrangement and connection engineering quantity is large, the installation period is long, and the construction operation difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can reduce to connect high-voltage electrical equipment ground system to connect line material quantity, installation work volume and the construction operation degree of difficulty, reduction of erection time, reduce steel construction platform load, reduce operation safety and quality risk and make the earth connection arrange succinct pleasing to the eye high-voltage electrical equipment ground system on multilayer steel construction platform.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the grounding system for the high-voltage electrical equipment on the multi-layer steel structure platform comprises grounding looped network flat copper arranged on each layer of steel platform;
the grounding ring network flat copper on each layer is respectively welded or connected with the corresponding grounding down-lead flat copper through a first silver-copper welding spot or a bolt, each grounding down-lead flat copper is respectively led to an underground concealed grounding grid along a steel platform upright post, and the bottom of the steel platform upright post is connected with the underground concealed grounding grid through a steel platform supporting leg grounding down-lead;
flat copper of an outdoor lightning arrester steel strut grounding outgoing line is connected and led out on an outdoor lightning arrester steel strut positioned on the steel platform, and the flat copper of the outdoor lightning arrester steel strut grounding outgoing line is welded or connected with the flat copper of the grounding ring network of the corresponding layer through bolts;
a GIS sleeve steel pillar grounding outgoing line flat copper is connected and led out on a GIS sleeve steel pillar positioned on the steel platform, and the GIS sleeve steel pillar grounding outgoing line flat copper is welded or connected with a grounding ring network flat copper of a corresponding layer through bolts;
and flat copper of a grounding outgoing line of the GIS branch bus steel strut is connected and led out on the GIS branch bus steel strut on the steel platform, and the flat copper of the grounding outgoing line of the GIS branch bus steel strut is welded or connected with the flat copper of the grounding ring network of the corresponding layer through bolts.
The grounding looped network flat copper is a rectangular frame structure formed by welding a plurality of grounding flat copper arranged along the length direction and the width direction of the steel platform end to end or connecting the plurality of grounding flat copper by bolts, and adjacent grounding flat copper are connected by silver brazing welding or bolt connection.
And the grounding looped network flat copper on the same layer is suspended and fixed on the lower surface of the steel platform steel grating by using a clamp or is directly arranged on the upper surface of the steel platform grating.
And the grounding down lead flat copper positioned on different layers is not connected, and is fixed on the inner side of the steel platform upright post through a clamp.
The utility model discloses there is following beneficial effect:
by taking the design of arranging the high-voltage electrical equipment grounding system on a three-layer steel platform which is simultaneously provided with a three-phase outdoor lightning arrester, a GIS sleeve and a branch bus as an example, compared with the conventional arrangement method, the arrangement system has the following advantages:
the use amount of the grounding flat copper material is reduced by about 50%, the load of the steel platform is reduced, the grounding ring network design is adopted for each layer of platform, the standard requirement is met, the number of grounding wires is reduced, and the grounding system is simple and attractive.
Taking the case that every 2m of the grounding flat copper is used and the grounding flat copper is connected in a silver-copper welding mode, the arrangement method is adopted to reduce the installation work amount of the grounding system by about 50 percent, and because the number of the switching bending parts of the grounding flat copper is reduced, the construction operation difficulty is reduced, the nearly half construction period is correspondingly shortened, and the operation safety and the quality risk are reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view of the system layout of the three-layer steel structure platform of the present invention.
Fig. 2 is the left view of the system layout of the three-layer steel structure platform of the utility model.
Fig. 3 is a third layer plan view of the system layout of the three-layer steel structure platform of the present invention.
Fig. 4 is a second layer top view of the system layout of the three-layer steel structure platform of the present invention.
Fig. 5 is a partially enlarged view of a in fig. 1 according to the present invention.
In the figure: the ground connection looped netowrk band copper 1, ground connection downlead band copper 2, GIS branch bus steel post ground connection lead-out wire band copper 3, GIS branch bus steel post 4, outdoor arrester steel post ground connection lead-out wire band copper 5, outdoor arrester steel post 6, GIS sleeve steel post ground connection lead-out wire band copper 7, GIS sleeve steel post 8, steel platform landing leg ground connection downlead 9, first silver copper solder joint 10, steel platform 11, steel platform stand 12, secret grounding network 13 that applies in vain.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, the grounding system for high voltage electrical equipment on a multi-layer steel structure platform comprises a grounding ring network flat copper 1 arranged on each layer of steel platform 11; the grounding ring network flat copper 1 on each layer is respectively welded or connected with the corresponding grounding down-lead flat copper 2 through a first silver-copper welding spot 10, each grounding down-lead flat copper 2 is respectively led to an underground concealed grounding grid 13 along a steel platform upright post 12, and the bottom of the steel platform upright post 12 is connected with the underground concealed grounding grid 13 through a steel platform supporting leg grounding down-lead 9; the outdoor lightning arrester steel support 6 on the steel platform 11 is connected with and led out of an outdoor lightning arrester steel support grounding outgoing line flat copper 5, and the outdoor lightning arrester steel support grounding outgoing line flat copper 5 is welded or connected with the grounding ring network flat copper 1 of the corresponding layer through bolts; a GIS sleeve steel pillar grounding outgoing line flat copper 7 is connected and led out on a GIS sleeve steel pillar 8 positioned on the steel platform 11, and the GIS sleeve steel pillar grounding outgoing line flat copper 7 is welded or connected with a grounding ring network flat copper 1 of a corresponding layer through bolts; and a GIS branch bus steel strut 4 on the steel platform 11 is connected with and led out of a GIS branch bus steel strut grounding outgoing line flat copper 3, and the GIS branch bus steel strut grounding outgoing line flat copper 3 is welded or connected with the grounding looped network flat copper 1 of the corresponding layer through bolts.
Further, the grounding ring network flat copper 1 is a rectangular frame structure formed by welding a plurality of grounding flat copper arranged along the length and width directions of the steel platform 11 end to end or connecting the plurality of grounding flat copper by bolts, and adjacent grounding flat copper are connected by silver-copper welding or connecting the plurality of grounding flat copper by bolts.
Further, the grounding ring network flat copper 1 on the same layer is suspended and fixed on the lower surface of the steel platform steel grating or directly arranged on the upper surface of the steel platform grating by using a clamp.
Furthermore, the grounding down-lead flat copper 2 on different layers is not connected, and the grounding down-lead flat copper 2 is fixed on the inner side of the steel platform upright post 12 through a clamp.
Example 2:
the layout method of the grounding system comprises the following steps:
the single-phase platform equipment on each layer and the steel strut grounding flat copper thereof all lead to the layer grounding ring network flat copper 1 first, and each grounding ring network flat copper 1 leads to the arrangement method of the underground concealed grounding network 13 on the ground downwards along the steel platform supporting leg, and the method comprises the following steps:
the method comprises the following steps: arranging a rectangular grounding ring network on each layer of steel platform along the length and width directions of the platform to form grounding ring network flat copper 1, wherein the grounding ring network flat copper 1 is connected with each other by silver copper welding, the grounding ring network flat copper 1 is suspended and fixed on the lower surface of the platform steel grating by using a clamp so as to enable the upper surface of the platform to be simple and beautiful, and the grounding flat copper can also be directly arranged on the upper surface of the platform steel grating;
step two: the two sides of each single-phase station main equipment body are respectively led out to the steel pillars, and then the two sides of each steel pillar are respectively led out to the two sides of each grounding ring network flat copper 1 horizontally and independently along the width direction of the platform, and the grounding ring network flat copper 1 is connected by silver brazing;
step three: leading out grounding flat copper from each layer of grounding ring network close to the steel platform upright post 12, leading the grounding flat copper downwards to an upper lead wire of an underground concealed grounding network 13 on the ground along the inner side of the steel platform upright post 12, and connecting the grounding lower lead flat copper 2 with the upper lead wire of the underground concealed grounding network 13 by copper-silver brazing; the upper layer of platform down lead is not connected with the lower layer of grounding down lead flat copper 2, the grounding down lead flat copper 2 is fixed on the inner side of the steel platform upright post 12 through a clamp, and the bottom end of the grounding down lead flat copper is connected with an underground concealed grounding grid 13;
step four: and (3) leading out the grounding flat copper from the outer side of the steel platform upright post 12 on the ground to the lead of the underground concealed grounding grid 13, connecting the grounding down lead 9 of the steel platform supporting leg with the underground concealed grounding grid 13 by adopting copper-silver brazing, so that each single-phase main equipment body and the steel support thereof on the steel platform are provided with two grounding down leads connected with different main lines of the underground concealed grounding grid, and each grounding down lead meets the requirement of thermal stability check.
Claims (4)
1. High-voltage electrical equipment grounding system on multilayer steel structure platform, its characterized in that: the steel platform comprises grounding looped network flat copper (1) arranged on each layer of steel platform (11);
the grounding ring network flat copper (1) on each layer is respectively welded or connected with the corresponding grounding down-lead flat copper (2) through a first silver-copper welding spot (10) through bolts, each grounding down-lead flat copper (2) is respectively led to an underground concealed-application grounding grid (13) along a steel platform upright post (12), and the bottom of the steel platform upright post (12) is connected with the underground concealed-application grounding grid (13) through a steel platform supporting leg grounding down-lead (9);
the outdoor lightning arrester steel support (6) on the steel platform (11) is connected with and led out of an outdoor lightning arrester steel support grounding outgoing line flat copper (5), and the outdoor lightning arrester steel support grounding outgoing line flat copper (5) is connected with the grounding looped network flat copper (1) on the corresponding layer through welding or bolts;
a GIS sleeve steel pillar (8) positioned on the steel platform (11) is connected with and led out a GIS sleeve steel pillar grounding outgoing line flat copper (7), and the GIS sleeve steel pillar grounding outgoing line flat copper (7) is welded or connected with a grounding ring network flat copper (1) of a corresponding layer through bolts;
GIS branch bus steel post earthing outgoing line band copper (3) is connected and led out on GIS branch bus steel post (4) on steel platform (11), welding or bolt link to each other between GIS branch bus steel post earthing outgoing line band copper (3) and the earthing looped network band copper (1) of corresponding layer.
2. The grounding system for high-voltage electrical equipment on the multi-layer steel structure platform according to claim 1, wherein: the grounding looped network flat copper (1) is of a rectangular frame structure formed by end-to-end welding or bolt connection of a plurality of grounding flat copper arranged along the length and width directions of the steel platform (11), and adjacent grounding flat copper are connected through silver-copper welding or bolt connection.
3. The grounding system for the high-voltage electrical equipment on the multi-layer steel structure platform according to claim 1 or 2, wherein: and the grounding looped network flat copper (1) on the same layer is suspended and fixed on the lower surface of the steel platform steel grating by using a clamp or is directly arranged on the upper surface of the steel platform grating.
4. The grounding system for high-voltage electrical equipment on the multi-layer steel structure platform according to claim 1, wherein: the grounding down lead flat copper (2) on different layers are not connected, and the grounding down lead flat copper (2) is fixed on the inner side of the steel platform upright post (12) through a clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021150187.0U CN212114043U (en) | 2020-06-19 | 2020-06-19 | High-voltage electrical equipment grounding system on multi-layer steel structure platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021150187.0U CN212114043U (en) | 2020-06-19 | 2020-06-19 | High-voltage electrical equipment grounding system on multi-layer steel structure platform |
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| CN212114043U true CN212114043U (en) | 2020-12-08 |
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| CN202021150187.0U Active CN212114043U (en) | 2020-06-19 | 2020-06-19 | High-voltage electrical equipment grounding system on multi-layer steel structure platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111628303A (en) * | 2020-06-19 | 2020-09-04 | 中国长江电力股份有限公司 | Grounding system and arrangement method for high-voltage electrical equipment on multilayer steel structure platform |
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2020
- 2020-06-19 CN CN202021150187.0U patent/CN212114043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111628303A (en) * | 2020-06-19 | 2020-09-04 | 中国长江电力股份有限公司 | Grounding system and arrangement method for high-voltage electrical equipment on multilayer steel structure platform |
| CN111628303B (en) * | 2020-06-19 | 2024-10-18 | 中国长江电力股份有限公司 | Grounding system and layout method for high-voltage electrical equipment on multi-layer steel structure platform |
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