CN203607555U - Transmission tower vertical grounding device - Google Patents
Transmission tower vertical grounding device Download PDFInfo
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- CN203607555U CN203607555U CN201320787931.1U CN201320787931U CN203607555U CN 203607555 U CN203607555 U CN 203607555U CN 201320787931 U CN201320787931 U CN 201320787931U CN 203607555 U CN203607555 U CN 203607555U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009933 burial Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001603 reducing effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003467 diminishing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The embodiment of the utility model provides a transmission tower vertical grounding device, which comprises a down lead, a horizontal grounding grid and vertical grounding electrodes, wherein the horizontal grounding grid comprises a horizontal square ring laid around the base of a transmission tower, the horizontal square ring is provided with a plurality of uniformly arranged electrodes with a horizontal ray structure; the vertical grounding electrodes are uniformly arranged on the plurality of electrodes with the horizontal ray structure; the down lead comprises four round steel bars laid around tower legs of the transmission tower, and is used for connecting the transmission tower and the grounding device reliably. The transmission tower vertical grounding device provided by the embodiment of the utility model adopts the vertical grounding electrodes so as to increase the burial depth of the grounding device and improve the resistance reduction effect; the diameter of the vertical grounding electrode is increased, the contact area between the grounding electrode and the soil is increased, and the resistance reduction effect is further improved; and the vertical grounding electrodes adopt a novel manufacturing method of coating flat steel by a resistance reducing agent, the diameter of the grounding electrode is increased, the resistance reduction effect is good, and good economy is provided.
Description
Technical field
The utility model relates to electric power transfer field, relates in particular to a kind of transmission tower perpendicular grounding device, concretely, is a kind of extremely super high voltage direct current electricity transmission shaft tower perpendicular grounding device of arid, high soil resistivity of northwest that is applied in.
Background technology
For guaranteeing electric device and personal safety when power system operation and the fault, high-voltage transmission line pole tower must ground connection, and earth resistance should meet rules requirement.
Earth resistance=soil resistivity * earthing device resistance coefficient falls, conventionally, for the high area of soil resistivity, reach lower earth resistance, will improve the resistance ability of falling of earthing device, mean larger earthing device, higher cost.
At present, electric power line pole tower mainly contains with earthing device:
1) horizontal grounding device: lay water quadratic loop around column foot, and be evenly arranged 4-8 root horizontal rays on Fang Huan, earth electrode is circle (flat) steel, depth of burying 0.3-0.8m.This horizontal grounding device is applicable to the situation that soil resistivity is lower.
2) earthing device of employing earthing module: be evenly arranged some prefabricated earthing modules on the ray of horizontal grounding device, to reach increase resistance reducing effect, reduce the object of earthing device size.The depth of burying 0.3-0.8m of earthing device.
3) adopt ion grounding system: on the ray of horizontal grounding device, be evenly arranged some ion grounding bodies, to reach increase resistance reducing effect, reduce the object of earthing device size.
For general area, existing earthing device can meet the demand of practical application, but extremely arid, high soil resistivity in northwest, air is dry, surface layer soil moisture content is extremely low, surface soil resistivity high (topsoil resistivity can reach 10000 Ω m more than), there is following problem in existing earthing device:
1) the earthing device depth of burying is more shallow: the existing earthing device depth of burying of high-voltage power transmission tower is generally 0.3-0.8m.
2) resistance of falling of earthing module, ion grounding body all needs to absorb moisture, to reduce near the resistivity of soil earth electrode, falls resistance effect therefore can not effectively bring into play it under utmost point drought environment.
3) earthing module, ion grounding body price are higher.
Therefore only rely on the scale that increases existing earthing device, not only cost is high, and effect is undesirable.
Utility model content
The economical earthing device that the utility model provides one ± 800kV direct current transportation shaft tower to use, for solving northwest, extremely the problem that resistance is difficult falls in arid, high soil resistivity transmission tower earth resistance.
In order to achieve the above object, the utility model embodiment provides a kind of transmission tower perpendicular grounding device, comprises downlead, horizontal grounding net and vertical grounding electrode; The column foot that described horizontal grounding net comprises the described transmission tower that is laid in water quadratic loop around, is evenly arranged the electrode of multiple horizontal rays structures in described water quadratic loop; Described vertical grounding electrode is evenly arranged on the electrode of described multiple horizontal rays structures; Described downlead comprises 4 round steel that lay along the tower leg of described transmission tower, for described transmission tower is reliably connected with described earthing device.
Further, in one embodiment, described downlead, horizontal grounding net and vertical grounding electrode link together by welding manner.
Further, in one embodiment, described vertical grounding electrode adopts band steel outer wrapping resistance reducing agent to increase its diameter.
Further, in one embodiment, described horizontal grounding net buried depth 0.4m-0.8m.
Further, in one embodiment, described vertical grounding electrode spacing is more than or equal to 5m.
Further, in one embodiment, the length of described vertical grounding electrode is more than or equal to 1.5m.
Further, in one embodiment, the diameter of described vertical grounding electrode is more than or equal to 0.5m.
Compared with existing earthing device, for northwest, extremely arid, high soil resistivity soil resistivity increase the feature diminishing to the transmission tower perpendicular grounding device of the utility model embodiment with buried depth, adopt vertical grounding electrode, to increase the buried depth of earthing device, improve resistance reducing effect; Increase the diameter of vertical grounding electrode, increase the contact area of earth electrode and soil, further improve resistance reducing effect; Vertical grounding electrode has adopted the brand-new manufacture method of band steel outer wrapping resistance reducing agent, has increased the diameter of earth electrode, and resistance reducing effect is good, and has good economy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the perspective view of the transmission tower perpendicular grounding device of the utility model embodiment;
Fig. 2 is the planar structure schematic diagram of the transmission tower perpendicular grounding device of the utility model embodiment;
Fig. 3 is the section structure schematic diagram of the vertical grounding electrode of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the perspective view of the transmission tower perpendicular grounding device of the utility model embodiment; Fig. 2 is the planar structure schematic diagram of the transmission tower perpendicular grounding device of the utility model embodiment; Fig. 3 is the section structure schematic diagram of the vertical grounding electrode of the utility model embodiment.As Figure 1-3, the transmission tower perpendicular grounding device of the present embodiment is made up of downlead 1, horizontal grounding net 2, vertical grounding electrode 3, downlead 1, horizontal grounding net 2, vertical grounding electrode 3 connect in aggregates by welding manner, and weld is carried out to preservative treatment.Wherein horizontal grounding net 2 use round steel lay water quadratic loop around column foot, and on Fang Huan, are evenly arranged 4-8 root horizontal rays formation.Consider economy, vertical grounding electrode 3 adopts band steel outer wrapping resistance reducing agent to increase the mode of its diameter, saves steel.Earth electrode field fabrication, material is convenient to transportation.
Described downlead 1 comprises 4 round steel that lay along the tower leg of described transmission tower, for described transmission tower is reliably connected with described earthing device.
In the utility model embodiment, on horizontal grounding net ray, be evenly arranged the vertical grounding electrode 3 of some, answer >=5m of vertical grounding electrode spacing, answer >=1.5m of vertical grounding electrode 3 length, diameter >=0.5m.Because the resistivity of soil increases and diminishes with buried depth, therefore according to different geological conditions by horizontal grounding net 2 buried depth 0.4-0.8m, to reach and to fall resistance object by the buried depth that increases earth electrode.And the diameter of vertical grounding electrode 3 is larger, larger with the contact area of soil, to high soil resistivity, the manufacture method that adopts band steel outer wrapping resistance reducing agent, can effectively increase resistance reducing effect to increase earth electrode diameter, therefore the diameter of vertical grounding electrode 3 is set to be more than or equal to 0.5m.
, high soil resistivity soil resistivity extremely arid for northwest increases the feature diminishing with buried depth, this earthing device adopts vertical grounding electrode, to increase the buried depth of earthing device, has improved resistance reducing effect; Increase the diameter of vertical grounding electrode, increase the contact area of earth electrode and soil, further improved resistance reducing effect.
This earthing device vertical grounding electrode has adopted the brand-new manufacture method of band steel outer wrapping resistance reducing agent, has increased the diameter of earth electrode, and resistance reducing effect is good, and has good economy.
In the utility model, applied specific embodiment principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (7)
1. a transmission tower perpendicular grounding device, is characterized in that, described earthing device comprises downlead, horizontal grounding net and vertical grounding electrode;
The column foot that described horizontal grounding net comprises the described transmission tower that is laid in water quadratic loop around, is evenly arranged the electrode of multiple horizontal rays structures in described water quadratic loop;
Described vertical grounding electrode is evenly arranged on the electrode of described multiple horizontal rays structures;
Described downlead comprises 4 round steel that lay along the tower leg of described transmission tower, for described transmission tower is reliably connected with described earthing device.
2. transmission tower perpendicular grounding device according to claim 1, is characterized in that, described downlead, horizontal grounding net and vertical grounding electrode link together by welding manner.
3. transmission tower perpendicular grounding device according to claim 1, is characterized in that, described vertical grounding electrode adopts band steel outer wrapping resistance reducing agent to increase its diameter.
4. transmission tower perpendicular grounding device according to claim 1, is characterized in that, described horizontal grounding net buried depth 0.4m-0.8m.
5. transmission tower perpendicular grounding device according to claim 1, is characterized in that, described vertical grounding electrode spacing is more than or equal to 5m.
6. transmission tower perpendicular grounding device according to claim 1, is characterized in that, the length of described vertical grounding electrode is more than or equal to 1.5m.
7. transmission tower perpendicular grounding device according to claim 1, is characterized in that, the diameter of described vertical grounding electrode is more than or equal to 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787931.1U CN203607555U (en) | 2013-12-03 | 2013-12-03 | Transmission tower vertical grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787931.1U CN203607555U (en) | 2013-12-03 | 2013-12-03 | Transmission tower vertical grounding device |
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| Publication Number | Publication Date |
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| CN203607555U true CN203607555U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320787931.1U Expired - Fee Related CN203607555U (en) | 2013-12-03 | 2013-12-03 | Transmission tower vertical grounding device |
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| CN (1) | CN203607555U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953434A (en) * | 2015-05-26 | 2015-09-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | Design method of novel multi-pin vertical earthing system |
| CN105929241A (en) * | 2016-06-15 | 2016-09-07 | 国网江西省电力科学研究院 | Grounding network design method for reducing impact grounding resistance of grounding network |
| CN105977656A (en) * | 2016-05-13 | 2016-09-28 | 国网四川省电力公司电力科学研究院 | Multi-metal lightning stroke overvoltage and overcurrent releaser |
| CN106129653A (en) * | 2016-08-31 | 2016-11-16 | 班戈设备系统（苏州）有限公司 | A kind of earth lead for rectangular base |
| CN106129654A (en) * | 2016-08-31 | 2016-11-16 | 班戈设备系统（苏州）有限公司 | A kind of earth lead for quadripartion type electric force pole tower |
| CN106684586A (en) * | 2017-03-13 | 2017-05-17 | 国网冀北电力有限公司迁西县供电分公司 | Structure capable of reducing grounding resistance and installation method of structure |
| CN109066115A (en) * | 2018-08-23 | 2018-12-21 | 广东电网有限责任公司 | Combined type tower bar Special grounding device |
| CN111541121A (en) * | 2020-05-14 | 2020-08-14 | 国网湖北省电力有限公司十堰供电公司 | Method for reducing impact grounding impedance of power transmission line tower |
| CN112350128A (en) * | 2020-09-28 | 2021-02-09 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Manufacturing method of grounding device of open-air limestone mine power supply system |
| CN114465026A (en) * | 2021-12-22 | 2022-05-10 | 西北核技术研究所 | Impact current grounding device and method |
-
2013
- 2013-12-03 CN CN201320787931.1U patent/CN203607555U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953434A (en) * | 2015-05-26 | 2015-09-30 | 国网黑龙江省电力有限公司鹤岗供电公司 | Design method of novel multi-pin vertical earthing system |
| CN105977656A (en) * | 2016-05-13 | 2016-09-28 | 国网四川省电力公司电力科学研究院 | Multi-metal lightning stroke overvoltage and overcurrent releaser |
| CN105977656B (en) * | 2016-05-13 | 2019-04-16 | 国网四川省电力公司电力科学研究院 | More metal Lightning Over-voltage overcurrent releases |
| CN105929241A (en) * | 2016-06-15 | 2016-09-07 | 国网江西省电力科学研究院 | Grounding network design method for reducing impact grounding resistance of grounding network |
| CN106129653A (en) * | 2016-08-31 | 2016-11-16 | 班戈设备系统（苏州）有限公司 | A kind of earth lead for rectangular base |
| CN106129654A (en) * | 2016-08-31 | 2016-11-16 | 班戈设备系统（苏州）有限公司 | A kind of earth lead for quadripartion type electric force pole tower |
| CN106684586A (en) * | 2017-03-13 | 2017-05-17 | 国网冀北电力有限公司迁西县供电分公司 | Structure capable of reducing grounding resistance and installation method of structure |
| CN109066115A (en) * | 2018-08-23 | 2018-12-21 | 广东电网有限责任公司 | Combined type tower bar Special grounding device |
| CN111541121A (en) * | 2020-05-14 | 2020-08-14 | 国网湖北省电力有限公司十堰供电公司 | Method for reducing impact grounding impedance of power transmission line tower |
| CN112350128A (en) * | 2020-09-28 | 2021-02-09 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Manufacturing method of grounding device of open-air limestone mine power supply system |
| CN114465026A (en) * | 2021-12-22 | 2022-05-10 | 西北核技术研究所 | Impact current grounding device and method |
| CN114465026B (en) * | 2021-12-22 | 2023-07-21 | 西北核技术研究所 | Impact current grounding device and method |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: CHINA POWER ENGINEERING CONSULTING (Group) Corp. Patentee after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: EAST CHINA ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: CHINA POWER ENGINEERING CONSULTING Group CORPORATION EAST CHINA ELECTRIC POWER DESIGN INSTITUTE Patentee before: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: NORTHWEST ELECTRIC POWER DESIGN INST. OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |