CN201829944U - Grounding-for-lightning device for wind turbine in wind power field - Google Patents
Grounding-for-lightning device for wind turbine in wind power field Download PDFInfo
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- CN201829944U CN201829944U CN2010205718487U CN201020571848U CN201829944U CN 201829944 U CN201829944 U CN 201829944U CN 2010205718487 U CN2010205718487 U CN 2010205718487U CN 201020571848 U CN201020571848 U CN 201020571848U CN 201829944 U CN201829944 U CN 201829944U
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- grounding
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- wind turbine
- wind
- lightning
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Abstract
The utility model provides a grounding-for-lightning device for a wind turbine in wind power fields, comprising conductive grounding rings and vertical grounding poles. The grounding-for-lightning device is characterized by comprising an internal horizontal grounding ring and an external horizontal grounding ring that are connected with each other at a plurality of positions; and the vertical grounding poles are arranged on the internal horizontal grounding ring and the external horizontal grounding ring, thus forming an annulus horizontal grounding network. The grounding-for-lightning device has the advantages of reducing land occupying area, facilitating construction, having low grounding resistance, and well meeting the grounding-for-lightning requirements of the wind turbines.
Description
Technical field
The utility model belongs to a kind of lightning protection device of wind turbine generator.
Background technology
Mainly consider two aspects, the one, cabin, the 2nd, blade for the wind turbine generator lightning protection.The cabin lightning protection is normally established a lightning rod at the cabin outer casing back, and by steel casing and tower socket joint ground.The lightning protection of blade mainly is that lightning receptor is installed in the blade tip both sides, and lightning receptor connects a conducting system, in a controlled manner lightning current was drawn blade, and go into ground by wheel hub, tower tube, thereby realization is to the protection of blade.The generator of cabin machine must use special-purpose earth cable to be connected with the earthing device of blower fan, and other parts in the cabin all directly are connected with engine room foundation.According to instructions for use, the earth resistance of wind turbine generator ground network is not more than 4 ohm.
The underground rock that mostly is in place, wind power generation site, soil resistivity is higher.Traditional lightning protection device is level circle or radiation.Have following shortcoming and defect: the horizontal grounding device only adopts circle or radiation, and floor space is big, difficulty of construction is high, earth resistance is high, can't satisfy the requirement of wind turbine generator lightning protection.
The utility model content
The purpose of this utility model provides a kind of lightning protection device of wind energy turbine set wind turbine generator, reduces floor space, is easy to construction, and earth resistance is low, can the fine requirement of satisfying the wind turbine generator lightning protection.
The technical solution of the utility model is as follows: comprise conductive earthing ring, vertical grounding electrode, it is characterized in that: inside and outside two circle horizontal grounding rings are set, many places connect between the inside and outside two circle horizontal grounding rings, on inside and outside two circle horizontal grounding rings, vertical grounding electrode is set, constitutes ring-like horizontal grounding net.
The utility model has the advantages that: reduce floor space, be easy to construction, earth resistance is low, can the fine requirement of satisfying the wind turbine generator lightning protection.
Description of drawings
Fig. 1 is the new structural representation of this practicality.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the schematic diagram of burying underground of deep-well vertical grounding electrode.
Embodiment
See Fig. 1-3, concrete structure is as follows: around generating set 4, promptly lay inside and outside two circle horizontal grounding rings 2,1 around blower foundation, laying depth is 1m; At least 4 places reliably connect by steel band 3 between the inside and outside two circle horizontal grounding rings 2,1, on inside and outside two circle horizontal grounding rings, vertical grounding electrode 6, deep-well vertical grounding electrode 5 are set, being formed in wind turbine generator is the ring-like ground network of assisting based on horizontal grounding ring, vertical grounding electrode on every side, vertical grounding electrode 6 adopts 2.5m long, diameter 200mm coating steel pipe, and reliably be connected with inside and outside two circle horizontal grounding rings.Deep well grounding electrode 5 adopts 10m long, diameter 200mm coating steel pipe, and is connected with annular ground network, the 200mm scope inner stuffing reason type resistance reducing agent 7 on every side of the earth electrode in deep-well 8 simultaneously.
This earthing device reliably is connected to finish the earthing device of whole blower fan with interior 3 of the foundation rings of blower fan.
Claims (1)
1.
A kind of lightning protection device of wind energy turbine set wind turbine generator, comprise conductive earthing ring, vertical grounding electrode, it is characterized in that: inside and outside two circle horizontal grounding rings are set, many places connect between the inside and outside two circle horizontal grounding rings, on inside and outside two circle horizontal grounding rings, vertical grounding electrode is set, constitutes ring-like horizontal grounding net
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205718487U CN201829944U (en) | 2010-10-22 | 2010-10-22 | Grounding-for-lightning device for wind turbine in wind power field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205718487U CN201829944U (en) | 2010-10-22 | 2010-10-22 | Grounding-for-lightning device for wind turbine in wind power field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829944U true CN201829944U (en) | 2011-05-11 |
Family
ID=43968458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205718487U Expired - Fee Related CN201829944U (en) | 2010-10-22 | 2010-10-22 | Grounding-for-lightning device for wind turbine in wind power field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110165559A (en) * | 2019-05-30 | 2019-08-23 | 安徽华希电力科技有限公司 | A kind of Wind turbines thunder-preventing graphite grounding device and its construction method |
| CN112540232A (en) * | 2020-11-26 | 2021-03-23 | 神华新能源有限责任公司 | Construction method of grounding grid, and detection method and equipment of impulse impedance of grounding grid |
-
2010
- 2010-10-22 CN CN2010205718487U patent/CN201829944U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110165559A (en) * | 2019-05-30 | 2019-08-23 | 安徽华希电力科技有限公司 | A kind of Wind turbines thunder-preventing graphite grounding device and its construction method |
| CN110165559B (en) * | 2019-05-30 | 2020-05-12 | 安徽华希电力科技有限公司 | Graphite lightning protection grounding device for wind turbine generator and construction method thereof |
| CN112540232A (en) * | 2020-11-26 | 2021-03-23 | 神华新能源有限责任公司 | Construction method of grounding grid, and detection method and equipment of impulse impedance of grounding grid |
| CN112540232B (en) * | 2020-11-26 | 2022-10-18 | 神华新能源有限责任公司 | Construction method of grounding grid, and detection method and equipment of impulse impedance of grounding grid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |