CN105514630A - Absorption type grounding device low in impedance - Google Patents
Absorption type grounding device low in impedance Download PDFInfo
- Publication number
- CN105514630A CN105514630A CN201610067794.2A CN201610067794A CN105514630A CN 105514630 A CN105514630 A CN 105514630A CN 201610067794 A CN201610067794 A CN 201610067794A CN 105514630 A CN105514630 A CN 105514630A
- Authority
- CN
- China
- Prior art keywords
- grounding device
- transmission line
- thunder
- absorption type
- impedance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses an absorption type grounding device low in impedance, and belongs to the technical field of high-tension line lightning protection. The grounding device aims at solving the technical problems that in the prior art, when an overhead transmission line is hit by thunderstrike, thunder currents are led into the ground through a lightning arrester by means of a lead-in wire or an iron tower, ground potential is increased, thunder currents can not be released in time, and safety of the transmission line is severely influenced. By means of the technical scheme, the absorption type grounding device is arranged underground and is composed of two electrodes, and the underground burying depth of the second electrode of the absorption type grounding device is larger than that of the first electrode of the absorption type grounding device. By means of the two electrodes, a capacitance effect can be achieved through the potential difference between thunder currents and a far zero-potential point, the thunder current release impedance is reduced, it is ensured that thunder currents are smoothly lead into the ground, and the lightning pressure of the transmission line is reduced.
Description
Technical field
The invention belongs to high-tension line Lightning protection field, being specifically related to one can low-impedance absorption earthing device.
Background technology
Transmission line is the important component part of power transmission system, transmission line through part mostly for the soil resistivity such as wilderness, hills, high mountain has the area of sudden change, soil property fault zone, the junctional area in Rock and Soil mixing area, hillside and rice field, the area of the circumstance complications such as air port, mountain top, reservoir river, area, mining area.Because transmission line is long, the probability that same circuit many places meet with thunderbolt is comparatively large, is damage to crops caused by thunder severely afflicated area.
In transmission line lightning protection, overhead transmission line A, B, C three-phase respectively installs a lightning arrester, and lightning current enters ground by lightning arrester through downlead.In prior art, overhead transmission line is struck by lightning, and lightning current is by lightning arrester when downlead or steel tower enter ground, and cause earth potential to raise, lightning current cannot discharge the safety having a strong impact on transmission line in time.
Summary of the invention
The object of the invention is to solve overhead transmission line in prior art to be struck by lightning, lightning current is existed when downlead or steel tower enter ground by lightning arrester, earth potential is caused to raise, lightning current cannot discharge the technical problem of the safety having a strong impact on transmission line in time, provides one can low-impedance absorption earthing device.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
One can low-impedance absorption earthing device, and wherein: described absorption earthing device is located in the ground and it is made up of two electrodes, the second electrode of absorption earthing device is greater than the buried depth of its first electrode in underground in the buried depth of underground.
Owing to present invention employs technique scheme, solve overhead transmission line in prior art to be struck by lightning, lightning current is existed when downlead or steel tower enter ground by lightning arrester, earth potential is caused to raise, lightning current cannot discharge the technical problem of the safety having a strong impact on transmission line in time, compared with background technology, two electrodes of the present invention can make lightning current form capacity effect with the potential difference of distant place zero-potential point, reduce the impedance of lightning current release, ensure that lightning current enters ground smoothly, reduce the thunderbolt pressure of transmission line.The present invention fully can reduce the impedance of Lightning-Protected Grounding of Transmission Line system, and effectively reduce the impact on lightning protection earthing system and transmission line of the alternating electromagnetic field that causes by being struck by lightning, ensure that lightning current discharges smoothly, ensure the safety and stability of transmission line, reduce the tripping operation probability of transmission line.
Accompanying drawing explanation
Fig. 1 is traditional overhead transmission line lightning protection system structural representation;
Fig. 2 uses lightning protection system structure chart of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated:
In the present embodiment can low-impedance absorption earthing device, wherein: described absorption earthing device is located in the ground and it is made up of two electrodes, and the second electrode is located at immediately below the first electrode.Second electrode of absorption earthing device is greater than the buried depth of its first electrode in underground in the buried depth of underground.
The set-up mode of the second electrode of the absorption earthing device in the present embodiment can also be located at the first electrode same position vertically or below tilting, also can have below certain level distance, but the buried depth of the second electrode must be made to be greater than the buried depth of the first electrode.
As shown in Figure 2, the low impedance transmission line road lightning protection system that absorption earthing device in the present embodiment is formed, two electrodes of the present invention can make lightning current form capacity effect with the potential difference of distant place zero-potential point, reduce the impedance of lightning current release, ensure that lightning current enters ground smoothly, reduce the thunderbolt pressure of transmission line.
Claims (1)
1. one kind can low-impedance absorption earthing device, it is characterized in that: described absorption earthing device is located in the ground and it is made up of two electrodes, the second electrode of absorption earthing device is greater than the buried depth of its first electrode in underground in the buried depth of underground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067794.2A CN105514630A (en) | 2016-01-28 | 2016-01-28 | Absorption type grounding device low in impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067794.2A CN105514630A (en) | 2016-01-28 | 2016-01-28 | Absorption type grounding device low in impedance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105514630A true CN105514630A (en) | 2016-04-20 |
Family
ID=55722419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610067794.2A Pending CN105514630A (en) | 2016-01-28 | 2016-01-28 | Absorption type grounding device low in impedance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105514630A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515220B1 (en) * | 2001-07-26 | 2003-02-04 | Lightning Eliminators & Consultants, Inc. | Moisture collecting grounding electrode |
| CN2598167Y (en) * | 2003-01-08 | 2004-01-07 | 寇承平 | Composite grounding module |
| CN2833910Y (en) * | 2005-08-24 | 2006-11-01 | 武汉高压研究所 | Soil resistivity improving pit for reducing earth resistance |
| CN204257834U (en) * | 2014-11-13 | 2015-04-08 | 国家电网公司 | A kind of centralized earthing device utilizing displacement current to improve characteristics of the dispersed flow |
-
2016
- 2016-01-28 CN CN201610067794.2A patent/CN105514630A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515220B1 (en) * | 2001-07-26 | 2003-02-04 | Lightning Eliminators & Consultants, Inc. | Moisture collecting grounding electrode |
| CN2598167Y (en) * | 2003-01-08 | 2004-01-07 | 寇承平 | Composite grounding module |
| CN2833910Y (en) * | 2005-08-24 | 2006-11-01 | 武汉高压研究所 | Soil resistivity improving pit for reducing earth resistance |
| CN204257834U (en) * | 2014-11-13 | 2015-04-08 | 国家电网公司 | A kind of centralized earthing device utilizing displacement current to improve characteristics of the dispersed flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160420 |