CN202930571U - Ultra high voltage transmission line tower grounding device - Google Patents
Ultra high voltage transmission line tower grounding device Download PDFInfo
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- CN202930571U CN202930571U CN 201220695025 CN201220695025U CN202930571U CN 202930571 U CN202930571 U CN 202930571U CN 201220695025 CN201220695025 CN 201220695025 CN 201220695025 U CN201220695025 U CN 201220695025U CN 202930571 U CN202930571 U CN 202930571U
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- high voltage
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- metal electrode
- linear pattern
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Abstract
The utility model provides an ultra high voltage transmission line tower grounding device which comprises a lead-out wire (1), a linear metal electrode unit (2), a discharge ring (4) and a vertical grounding electrode (5). The lead-out wire (1) is mounted at one end of the linear metal electrode unit (2), and the other end of the linear metal electrode unit (2) is connected with the discharge ring (4). The vertical grounding electrode (5) is connected with the discharge ring (4). An installation extension direction of the vertical grounding electrode (5) and a plane at which the discharge ring (4) is located are perpendicular to each other. Compared with a current grounding device, the ultra high voltage transmission line tower grounding device has the advantages that firstly impulse impedance generated in the hit of lightning current can be effectively reduced by the linear metal electrode unit; then a discharge ring structure can reduce ground potential rise, and personnel safety is ensured; lastly the vertical grounding electrode can accelerate the drainage of the lightning current, and the safety of a transmission line is ensured.
Description
Technical field
The utility model relates to a kind of earthing device, is specifically related to a kind of extra high voltage network tower grounding device.
Background technology
The high development of a country must have powerful transmission line as basic guarantee. for example, the industrial U.S., its high pressure and superhigh pressure power transmission and distribution networkings total length are about 80 * 10
4Km.China's electric utility develops comparatively fast always, the setting up and put into operation and will grow with each passing day of high pressure and superhigh pressure transmission and distribution network, and large-scale transmission and distribution line and the transformer station distributed areas of the different electric pressures such as 380KV, 550KV, 800KV are very wide, and effect becomes increasingly conspicuous.But the transmission line trip accident rate that thunderbolt causes is higher, and is annual due to electric power line pole tower imperfect earth, and the trip accident that causes accounts for the overwhelming majority, causes thus huge economic loss.
The utility model content
The utility model has overcome the deficiencies in the prior art, and a kind of extra high voltage network tower grounding device is provided, and this earthing device namely has linear pattern metal unit and earial drainage ring, on the earial drainage ring, vertical grounding electrode is installed also simultaneously.The linear pattern metal unit can effectively reduce impedance ground; The earial drainage ring can reduce earth potential and raise, and guarantees personal security; Vertical grounding electrode can be accelerated releasing of lightning current, guarantees transmission line safety, has overcome technical problem of the prior art.
The utility model is by the following technical solutions:
A kind of extra high voltage network tower grounding device, above-mentioned earthing device comprise lead-out wire, linear pattern metal electrode unit, earial drainage ring and vertical grounding electrode; Above-mentioned lead-out wire is arranged on linear pattern metal electrode unit one end, the other end of linear pattern metal electrode unit is connected with the earial drainage ring, above-mentioned vertical grounding electrode is connected with the earial drainage ring, and the plane at the bearing of trend of the axis of above-mentioned vertical grounding electrode and earial drainage ring place is mutually perpendicular.
Be further:
As preferably, adopt the mode of heat release welding to link together between linear pattern metal electrode unit, earial drainage ring, vertical grounding electrode.
As preferably, earial drainage ring and vertical grounding electrode link together by connecting line.
As preferably, linear pattern metal electrode unit forms by two sections, also links together by connecting line between two sections linear pattern metal electrode unit.
As preferably, lead-out wire and earial drainage ring are twisted wire, and its cross section is between 80 square millimeters-120 square millimeters, and material is stainless steel, can select other metal materials that equal anticorrosion ability is arranged with stainless steel.
As preferably, linear pattern metal electrode unit is the stainless steel pipe; The body external diameter between 50mm-58mm, thickness of pipe wall 2-5mm, body length is 500mm-1500mm.
As preferably, in the body of linear pattern metal electrode unit, filling can discharge the conductive ion filler that changes surrounding soil resistivity, the plug of body two ends cover tape splicing spiracle.
As preferably, vertical grounding electrode diameter of section 14-20mm, length 200-1000mm selects stainless steel.
As preferably, vertical grounding electrode has a plurality of, is evenly distributed on the earial drainage ring.
As preferably, connecting line is twisted wire, and its cross section is between 80 square millimeters-120 square millimeters, and material is stainless steel.
Compare the beneficial effect of the utility model earthing device with existing earthing device: the impact impedance that produces when at first the linear pattern electrode unit can effectively reduce lightning current and hits; Then the earial drainage ring structure can reduce the earth potential liter, guarantees personal security; Last vertical grounding electrode can be accelerated releasing of lightning current, guarantees transmission line safety.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Embodiment 1
A kind of extra high voltage network tower grounding device, earthing device comprise lead-out wire 1, linear pattern metal electrode unit 2, earial drainage ring 4 and vertical grounding electrode 5; Lead-out wire 1 is arranged on linear pattern metal electrode unit 2 one ends, linear pattern metal electrode unit 2(can be the electrode unit of metal tube or other linear pattern metal materials) the other end be connected with earial drainage ring 4,5 of vertical grounding electrodes are connected with earial drainage ring 4, and the installation of vertical grounding electrode 5 is mutually perpendicular along the plane of stretching direction and earial drainage ring 5 places.Adopt the mode of heat release welding to link together between linear pattern metal electrode unit 2, earial drainage ring 4, vertical grounding electrode 5.Earial drainage ring 4 links together by connecting line 3 with vertical grounding electrode 5.Lead-out wire 1, connecting line 3 and earial drainage ring 4 are twisted wire, and its cross section is between 80 square millimeters-120 square millimeters, and material is stainless steel (certainly also can select other metal materials that equal anticorrosion ability is arranged with stainless steel).Vertical grounding electrode 5 diameter of section 14-20mm, length 200-1000mm selects stainless steel.
This enforcement difference from Example 1 is: the linear pattern metal electrode unit 2(in the present embodiment forms by two sections, also links together by connecting line 3 between two sections linear pattern metal electrode unit 2.In the present embodiment, linear pattern metal electrode unit 2 is the stainless steel pipe; The body external diameter between 50mm-58mm, thickness of pipe wall 2-5mm, body length is 500mm-1500mm.
In the present embodiment, the stainless steel pipe has been selected in linear pattern metal electrode unit 2, forms by two sections again simultaneously, the impact impedance that produces in the time of more can effectively reducing lightning current and hit.
Embodiment 3
The present embodiment is to increase following content on the basis of any one embodiment in front:
Filling can discharge the conductive ion filler that changes surrounding soil resistivity in the body of linear pattern metal electrode unit 2, the plug of body two ends cover tape splicing spiracle.Vertical grounding electrode 5 has a plurality of, is evenly distributed on earial drainage ring 4.
Can discharge owing to filling in body the conductive ion filler that changes surrounding soil resistivity, there are simultaneously a plurality of vertical grounding electrodes to be distributed on earial drainage ring 4, can farthest reduce impedance on the one hand, can also further strengthen simultaneously releasing of lightning current same, effect is than the embodiment of front, and is best.
The below comes simply to introduce the mounting means of above-mentioned any one embodiment again: dig the dark ditch of 0.8-1m by design length and orientation, the vertical grounding electrode end digs 1 diameter 800mm again in the ditch bottom surface, the circular pit of dark 500mm.Earthing device is positioned in ditch, support and can be in fully in slurry with the different parts of supporter to the metal utmost point, the consumption by the designing requirement backfill evenly pours into the coated metal utmost point in groove with the slurry that mixes up, wait solidifying the rear fine earth of first using, then get final product with the backfill soil backfilling compaction.
Claims (10)
1. extra high voltage network tower grounding device, described earthing device comprises lead-out wire (1), linear pattern metal electrode unit (2), earial drainage ring (4) and vertical grounding electrode (5); Described lead-out wire (1) is arranged on linear pattern metal electrode unit (2) one ends, the other end of linear pattern metal electrode unit (2) is connected with earial drainage ring (4), described vertical grounding electrode (5) is connected with earial drainage ring (4), and the plane at the bearing of trend of the axis of described vertical grounding electrode (5) and earial drainage ring (4) place is mutually perpendicular.
2. extra high voltage network tower grounding device according to claim 1, is characterized in that: adopt the mode of heat release welding to link together between described linear pattern metal electrode unit (2), earial drainage ring (4), vertical grounding electrode (5).
3. extra high voltage network tower grounding device according to claim 1 is characterized in that: described earial drainage ring (4) links together by connecting line (3) with vertical grounding electrode (5).
4. extra high voltage network tower grounding device according to claim 1, it is characterized in that: described linear pattern metal electrode unit (2) forms by two sections, also links together by connecting line (3) between two sections linear pattern metal electrode unit (2).
5. extra high voltage network tower grounding device according to claim 1 and 2, it is characterized in that: described lead-out wire (1) and earial drainage ring (4) are twisted wire, and its cross section is between 80 square millimeters-120 square millimeters, and material is stainless steel.
6. according to claim 1 or 4 described extra high voltage network tower grounding devices, it is characterized in that: described linear pattern metal electrode unit (2) is the stainless steel pipe; The body external diameter between 50mm-58mm, thickness of pipe wall 2-5mm, body length is 500mm-1500mm.
7. extra high voltage network tower grounding device according to claim 2, it is characterized in that: filling can discharge the conductive ion filler that changes surrounding soil resistivity in the body of described linear pattern metal electrode unit (2), the plug of body two ends cover tape splicing spiracle.
8. extra high voltage network tower grounding device according to claim 1, it is characterized in that: described vertical grounding electrode (5) diameter of section 14-20mm, length 200-1000mm selects stainless steel.
9. extra high voltage network tower grounding device according to claim 1, it is characterized in that: described vertical grounding electrode (5) has a plurality of, is evenly distributed on earial drainage ring (4).
10. according to claim 3 or 4 described extra high voltage network tower grounding devices, it is characterized in that: described connecting line (3) is twisted wire, and its cross section is between 80 square millimeters-120 square millimeters, and material is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695025 CN202930571U (en) | 2012-12-17 | 2012-12-17 | Ultra high voltage transmission line tower grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695025 CN202930571U (en) | 2012-12-17 | 2012-12-17 | Ultra high voltage transmission line tower grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930571U true CN202930571U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695025 Expired - Fee Related CN202930571U (en) | 2012-12-17 | 2012-12-17 | Ultra high voltage transmission line tower grounding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202930571U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746195A (en) * | 2014-02-10 | 2014-04-23 | 银川锦天乐防雷技术有限公司 | Special modular lightning-proof grounding device |
| CN104695480A (en) * | 2014-12-29 | 2015-06-10 | 国家电网公司 | Anti-electric-shock street lamp working well |
| CN105467248A (en) * | 2015-12-17 | 2016-04-06 | 清华大学 | Method for measuring and amending impact characteristics of grounding device |
| CN108020739A (en) * | 2017-11-29 | 2018-05-11 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of method for reducing deep well grounding electrode maximum current density |
-
2012
- 2012-12-17 CN CN 201220695025 patent/CN202930571U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746195A (en) * | 2014-02-10 | 2014-04-23 | 银川锦天乐防雷技术有限公司 | Special modular lightning-proof grounding device |
| CN104695480A (en) * | 2014-12-29 | 2015-06-10 | 国家电网公司 | Anti-electric-shock street lamp working well |
| CN105467248A (en) * | 2015-12-17 | 2016-04-06 | 清华大学 | Method for measuring and amending impact characteristics of grounding device |
| CN108020739A (en) * | 2017-11-29 | 2018-05-11 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of method for reducing deep well grounding electrode maximum current density |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20131217 |