CN201378728Y - Lightning proof-grounding integrated protection system - Google Patents
Lightning proof-grounding integrated protection system Download PDFInfo
- Publication number
- CN201378728Y CN201378728Y CN200920013186U CN200920013186U CN201378728Y CN 201378728 Y CN201378728 Y CN 201378728Y CN 200920013186 U CN200920013186 U CN 200920013186U CN 200920013186 U CN200920013186 U CN 200920013186U CN 201378728 Y CN201378728 Y CN 201378728Y
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- CN
- China
- Prior art keywords
- cable
- earth rod
- ground rod
- shell
- cabin
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- Expired - Fee Related
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Abstract
The utility model relates to a lightning proof-grounding integrated protection system used for a wind generating set, which is provided with a lightning arrester at the tip part of a blade. The lightning arrester is connected with a wheel hub, and then connected with a main shaft by a cable arranged inside the blade. A main bearing chamber is connected with a ground rod in an engine room casing by a cable. A gear box is connected with the ground rod in the engine room casing by a cable. The converter of a tower barrel top unit is connected with the ground rod in the engine room casing by a cable. The ground rod in the engine room casing is connected with the ground rod of the tower barrel top unit by a cable. The ground rod of the tower barrel top unit is connected with the ground rod inside a control cabinet arranged under the tower barrel by a cable. A generator arranged in the engine room casing is connected with the ground rod inside the control cabinet which is arranged under the tower barrel by a cable. The ground rod inside the control cabinet is connected with the ground rod at the bottom of the tower barrel by a cable. The ground rod at the bottom of the tower barrel is connected with a grounding wire in the tower barrel foundation and a metal foundation frame.
Description
Technical field
The utility model relates to a kind of protection system, relates in particular to a kind of lightning protection-grounding protection system that is used on the wind turbine generator.
Background technology
Each international wind turbine generator producer's actual design institute's establishing criteria and parameter comprise that earth mat resistance has very big difference.So, the wind turbine generator that forms stays weak link in the lightning-protection system manufacturing, make the branch line of manufacturing firm to the electric equipment ground connection of shell inside, cabin, be not connected with the ground connection main line, implementation is connected in series or by support, other channel-section steel transition, makes that the grounding system complexity and the cost of lightning-protection system and unit are too high.Even cause the part wind turbine generator to be struck by lightning thus, particularly the valuable parts of blade and generator are struck by lightning, and the gained that should generate electricity during loss is repaired, also will bear the great expense of the dismounting and the renewal of impaired parts.
The utility model content
Provide a kind of lightning protection-grounding integrated protection system for solving the problems of the technologies described above the utility model, purpose is to prevent that wind turbine generator is struck by lightning.
For reaching the above-mentioned purpose lightning protection-grounding integrated protection system; be provided with the lightning protection arrester in blade tip; the lightning protection arrester is connected to wheel hub by the blade interior cable and links on the main shaft again; main shaft is connected by cable with the base bearing chamber enclosure; the base bearing chamber enclosure is connected on the earth rod in the shell of cabin by cable; gearbox-case is connected on the earth rod in the shell of cabin by cable; the transducer of tower tube top unit is connected on the earth rod in the shell of cabin by cable; earth rod in the shell of cabin links to each other by the earth rod of cable with tower tube top unit; the earth rod of tower tube top unit is connected by the earth rod of cable with the control cubicle inside that is located at tower tube bottom; the generator casing that is located in the shell of cabin is connected on the earth rod of control cubicle inside, tower tube bottom by cable; the earth rod of control cubicle inside is connected to by cable on the earth rod of tower tube bottom, and the earth rod of tower tube bottom links to each other with the underlying metal framework with earth connection in the tower barrel base.
Earth rod in the shell of described cabin is connected with cabin shell lightning rod outward.
The utility model has the advantages of: the utility model makes all parts of unit keep potential balances, and provides easily the ground connection passage to avoid the accumulation of high energy thunder and lightning to discharge thunder and lightning.From the blade to the cabin, be to be directly connected on the earth rod by cable.During thunderbolt, the commutator of connection main shaft and bearing pedestal can be transferred to engine room foundation safely without bearing with transient current and enter ground network.Wind turbine generator is general electric equipment, if lightning protection separates with protective earthing, difficulty can strengthen concerning earth mat is made like that, requires earth resistance less than 1 ohm simultaneously.If be regardless of as long as earth resistance is just passable less than 4 ohm; the protection system of having simplified protective earthing, earthing and lightning protection protection at zero point integrated; safety is easy more to make its protection system; simultaneously also reduce the difficulty of doing earth mat greatly, thereby made the assembling manufacturing cost of whole integrated protection system.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, lightning rod; 2, blade; 3, the earth rod in the shell of cabin; 4, wheel hub; 5, base bearing chamber; 6, gear box; 7, generator; 8, the transducer of tower tube top unit; 9, the earth rod of tower tube top unit; 10, the earth rod of control cubicle inside; 11, the earth rod of tower tube bottom; 12, tower barrel base; 13, lightning protection arrester; 14, cabin shell; 15, control cubicle.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The utility model lightning protection-grounding integrated protection system as shown in the figure; blade 2 tips are provided with lightning protection arrester 13; lightning protection arrester 13 is connected to wheel hub 4 by blade 2 inside cables and links on the main shaft again; main shaft is connected by cable with base bearing chamber 5 shells; base bearing chamber 5 shells are connected on the earth rod 3 in the shell of cabin by cable; gear box 6 shells are connected on the earth rod 3 in the shell of cabin by cable; the transducer 8 of tower tube top unit is connected on the earth rod 3 in the shell of cabin by cable; earth rod 3 in the shell of cabin links to each other by the earth rod 9 of cable with tower tube top unit; the earth rod 9 of tower tube top unit is connected by the earth rod 10 of cable with the control cubicle inside that is located at tower tube bottom; the shell that is located at the generator 7 in the shell of cabin is connected on the earth rod 10 of control cubicle inside, tower tube bottom by cable; the earth rod 10 of control cubicle inside is connected on the earth rod 11 of tower tube bottom by cable; the earth rod 11 of tower tube bottom links to each other with the underlying metal framework with earth connection in the tower barrel base 12; earth rod 3 in the shell of cabin is connected with cabin shell lightning rod 1 outward, and anemoscope anemobiagraph and lightning rod are one.
The earth rod 11 of earth rod 10, control cubicle 15 shells and the tower tube bottom of the earth rod 3 in while base bearing chamber 5 shells, gear box 6 shells, the cabin shell, the earth rod 9 of tower tube top unit, cabin shell 14, generator 7 shells, control cubicle inside is ground connection separately, forms standby each other ground protection loop.
Claims (2)
1; lightning protection-grounding integrated protection system; it is characterized in that being provided with the lightning protection arrester in blade tip; the lightning protection arrester is connected to wheel hub by the blade interior cable and links on the main shaft again; main shaft is connected by cable with the base bearing chamber enclosure; the base bearing chamber enclosure is connected on the earth rod in the shell of cabin by cable; gearbox-case is connected on the earth rod in the shell of cabin by cable; the transducer of tower tube top unit is connected on the earth rod in the shell of cabin by cable; earth rod in the shell of cabin links to each other by the earth rod of cable with tower tube top unit; the earth rod of tower tube top unit is connected by the earth rod of cable with the control cubicle inside that is located at tower tube bottom; the generator casing that is located in the shell of cabin is connected on the earth rod of control cubicle inside, tower tube bottom by cable; the earth rod of control cubicle inside is connected to by cable on the earth rod of tower tube bottom, and the earth rod of tower tube bottom links to each other with the underlying metal framework with earth connection in the tower barrel base.
2, lightning protection-grounding integrated protection system according to claim 1 is characterized in that the outer lightning rod of interior earth rod of described cabin shell and cabin shell is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013186U CN201378728Y (en) | 2009-04-23 | 2009-04-23 | Lightning proof-grounding integrated protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013186U CN201378728Y (en) | 2009-04-23 | 2009-04-23 | Lightning proof-grounding integrated protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378728Y true CN201378728Y (en) | 2010-01-06 |
Family
ID=41518848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920013186U Expired - Fee Related CN201378728Y (en) | 2009-04-23 | 2009-04-23 | Lightning proof-grounding integrated protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588059B (en) * | 2009-04-23 | 2011-03-23 | 沈阳瑞祥风能设备有限公司 | Lightning protection-grounding integrated protection system |
-
2009
- 2009-04-23 CN CN200920013186U patent/CN201378728Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588059B (en) * | 2009-04-23 | 2011-03-23 | 沈阳瑞祥风能设备有限公司 | Lightning protection-grounding integrated protection system |
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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: 20100106 Termination date: 20110423 |