CN202134908U - Lightning protection protective device of wind generating set connected with main inlet wire through connected grid - Google Patents
Lightning protection protective device of wind generating set connected with main inlet wire through connected grid Download PDFInfo
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- CN202134908U CN202134908U CN201120265894U CN201120265894U CN202134908U CN 202134908 U CN202134908 U CN 202134908U CN 201120265894 U CN201120265894 U CN 201120265894U CN 201120265894 U CN201120265894 U CN 201120265894U CN 202134908 U CN202134908 U CN 202134908U
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- lightning
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Abstract
The utility model provides a lightning protection protective device of a wind generating set connected with a main inlet wire through a connected grid, comprising three main inlet wires outside a tower cylinder, main lines of a cabin control cabinet, a main breaker of a connected grid, three surge protectors of B level phase line and lightning protection and three surge protectors of C level phase line and lightning protection. The three main lines of a cabin control cabinet are connected with the main inlet wires outside a tower cylinder through the main breaker of a connected grid; the three surge protectors of B level phase line and lightning protection are connected with the three main inlet wires outside a tower cylinder; and the three surge protectors of C level phase line and lightning protection are connected with the three main inlet wires outside a tower cylinder. According to the utility model, the device can well solve the problem of lightning surge protection of a wind generating set connected with a main inlet wire through a connected grid; integral reliability and safety of the wind generating set are increased; and operational benefit is increased.
Description
Technical field
The utility model relates to the shocking preventing technology field, particularly is applicable to the lightning protection device of wind turbine generator.
Background technology
Thunder and lightning is a kind of extremely common natural phenomena of occurring in nature, and all possibly occur each season, and is higher with the frequency that the area occurs with the season of many thunderstorms especially.The induction overvoltage that thunder and lightning produced has powerful energy, and the things that contacts is had extremely strong destructive power, and life has brought very big influence to Human's production.The world today; In the time of the extensive use of high voltage and high current equipment; Microelectric technique, computer information network system have obtained using widely, and they all are operated under low-voltage and the little current status, and be stricter to the requirement of dielectric strength; The ability of withstand voltage withstand current is poorer relatively, is more vulnerable to the thunder and lightning electromagnetic wave and impacts and damage.This shows that being accompanied by Lightning Electromagnetic Pulse that thunder and lightning produces is very serious to the harm of microelectronic device, and information system direct losses that indirect loss that the back produced and influence will be higher than lightning strike accident far away and caused of being struck by lightning.
Because the wind power plant installation environment is more abominable, spacious on every side, even some is installed in high altitude environment or hilly country, adds wind power plant up to nearly hundred meters, so cause its very easily by thunderbolt and directly become thunder and lightning connect the sudden strain of a muscle thing.Though the nacelle exterior of wind power plant has been installed lightning rod; Some inner simultaneously positions have also added lightning protection device commonly used; Can play certain inside and outside protective action; But, more there is not reasonable analysis to calculate the lightning protection data because the bus that existing unit column foot main circuit breaker generally is connected with external transformer does not add lightning protection device.For before influence not only self hardware of wind power plant has been caused certain loss, and the uncertain of power supply that its damage causes caused bigger influence to national economy.So thunder and lightning and superpotential protection to wind power plant master inlet wire device are important with regard to the ten minutes that shows.
Therefore, how to design a kind of lightning protection device that is applicable to wind turbine generator, be those skilled in the art's research direction place.
Summary of the invention
The main purpose of the utility model provides the lightning protection device that a kind of wind power generation set grid-connection connects main inlet wire; It has solved the problem that wind power generation set grid-connection connects the lightning protection surge of main inlet wire, and other cabinet device lightning surge protection plays a protective role to unit simultaneously.
In order to achieve the above object, the lightning protection device that the utility model provides a kind of wind power generation set grid-connection to connect main inlet wire, it comprises the outer main inlet wire of three tower tubes; Cabin control cubicle main line; The main circuit breaker that is incorporated into the power networks, three anti-thunder and lightning Surge Protectors of B level phase lines, three anti-thunder and lightning Surge Protectors of C level phase lines; Wherein, Described three cabin control cubicle main lines link to each other with the outer main inlet wire of said tower tube through the said main circuit breaker that is incorporated into the power networks, and the anti-thunder and lightning Surge Protector of said three B level phase lines connects the outer main inlet wire of said three tower tubes, and the anti-thunder and lightning Surge Protector of said three C level phase lines connects the outer main inlet wire of said three tower tubes.
In the preferred implementation, also comprise three B level phase line fuses, the anti-thunder and lightning Surge Protector of described three B level phase lines connects the outer main inlet wire of said three tower tubes through described three B level phase line fuses.
In the preferred implementation, also comprise three C level phase line fuses, the anti-thunder and lightning Surge Protector of described three C level phase lines connects the outer main inlet wire of said three tower tubes through described three C level phase line fuses.
In the preferred implementation, be provided with the anti-thunder and lightning Surge Protector protection of B level partition between the anti-thunder and lightning Surge Protector of described three B level phase lines.
In the preferred implementation, also comprise the anti-thunder and lightning Surge Protector fire prevention of B level box, it is coated on anti-thunder and lightning Surge Protector of said B level phase line and the anti-thunder and lightning Surge Protector protection of said B level partition.
In the preferred implementation, be provided with the anti-thunder and lightning Surge Protector protection of C level partition between the anti-thunder and lightning Surge Protector of described three C level phase lines.
In the preferred implementation, the electric pressure of the anti-thunder and lightning Surge Protector of described B level phase line is 690VAC.
In the preferred implementation, the electric pressure of the anti-thunder and lightning Surge Protector of described C level phase line is 690VAC.
The beneficial effect of the utility model is: can well solve the anti-thunder and lightning surge problem that wind power generation set grid-connection connects main inlet wire, increase wind turbine generator global reliability and fail safe, improve on-road efficiency.
Description of drawings
Fig. 1 connects lightning protection device one sketch map of main inlet wire for the utility model wind power generation set grid-connection.
Fig. 2 connects the lightning protection device one embodiment sketch map of main inlet wire for the utility model wind power generation set grid-connection.
Fig. 3 connects another embodiment sketch map of lightning protection device of main inlet wire for the utility model wind power generation set grid-connection.
The lightning protection device that Fig. 4 connects main inlet wire for the utility model wind power generation set grid-connection is an embodiment sketch map again.
Fig. 5 forms sketch map for the lightning protection device one that the utility model wind power generation set grid-connection connects main inlet wire.
Description of reference numerals: the outer main inlet wire of 10-tower tube; 20-cabin control cubicle main line; The 1-main circuit breaker that is incorporated into the power networks; 2-B level phase line fuse; 3-B level phase line is prevented the thunder and lightning Surge Protector; The anti-thunder and lightning Surge Protector protection of 4-B level partition; The anti-thunder and lightning Surge Protector fire prevention of 5-B level box; 6-C level phase line fuse; 7-C level phase line is prevented the thunder and lightning Surge Protector; The anti-thunder and lightning Surge Protector protection of 8-C level partition.
Embodiment
Below in conjunction with accompanying drawing 1 to 5, do more detailed explanation with other technical characterictic and advantage to the utility model is above-mentioned.
It is said to consult Fig. 1; Lightning protection device one sketch map that connects main inlet wire for the utility model wind power generation set grid-connection; The utility model comprises the outer main inlet wire 10 of three tower tubes; The outer main inlet wire 10 of described three tower tubes links to each other with cabin control cubicle main line 20 through the main circuit breaker 1 that is incorporated into the power networks; Also comprise the anti-thunder and lightning Surge Protector 3 of three B level phase lines and three anti-thunder and lightning Surge Protectors 7 of C level phase line, the anti-thunder and lightning Surge Protector 3 of said three B level phase lines connects the outer main inlet wire 10 of said three tower tubes, and the anti-thunder and lightning Surge Protector 7 of said three C level phase lines connects the outer main inlet wire 10 of said three tower tubes.
The utility model is according to the division of different Electro Magnetic Compatibilities protection zone and uses the principle of preventing lightning guard; And, the column foot master lead-in circuit breaker net side of the connection of being incorporated into the power networks has been installed corresponding anti-thunder and lightning surge protective device to the analytical calculation that this position lightning voltage rush of current carries out.Because what main distribution adopted is the TN-C standard, line voltage 690VAC, phase voltage 400VAC.Therefore the anti-thunder and lightning Surge Protector of B+C level of 690VAC electric pressure is installed in design before the main circuit breaker inlet wire of column foot.The electric pressure of the anti-thunder and lightning Surge Protector of described B level phase line is 690VAC.The electric pressure of the anti-thunder and lightning Surge Protector of described C level phase line is 690VAC.
The outer main inlet wire of the tower tube of the utility model adopts three; Therefore; Anti-thunder and lightning Surge Protector 3 of described B level phase line and the anti-thunder and lightning Surge Protector 7 of C level phase line are three; The anti-thunder and lightning Surge Protector of these three B level phase lines can reach the ability of every phase 50KA lightning current of releasing, and residual voltage is limited in about 4.0KV; Three anti-thunder and lightning Surge Protectors of C level phase line can reach the ability of every phase 20KA surge current of releasing, and residual voltage is limited in about 2.5KV, make the equipment of its rear end be in safe state.
As shown in Figure 2; The lightning protection device one embodiment sketch map that connects main inlet wire for the utility model wind power generation set grid-connection; The utility model also comprises three B level phase line fuses 2 and three C level phase line fuses 6, and the anti-thunder and lightning Surge Protector 3 of described three B level phase lines connects the outer main inlet wire 10 of said three tower tubes through described three B level phase line fuses 2.The anti-thunder and lightning Surge Protector 8 of described three C level phase lines connects the outer main inlet wire 10 of said three tower tubes through described three C level phase line fuses 6.
Because the fuse that a constant volume is installed before corresponding anti-thunder and lightning Surge Protector is to protect anti-thunder and lightning Surge Protector; So just can main circuit breaker and other case equipment be played a very good protection so that the lightning current in the column foot is effectively released and overvoltage is limited in the scope of unit electric equipment permission when thunderbolt takes place.
As shown in Figure 3; Another embodiment sketch map of lightning protection device that connects main inlet wire for the utility model wind power generation set grid-connection; The utility model also comprises anti-thunder and lightning Surge Protector protection partition 4 of three B levels and the anti-thunder and lightning Surge Protector protection of C level partition 8; The anti-thunder and lightning Surge Protector 3 of its setting and said three B level phase lines or three C level phase lines are prevented 7 of thunder and lightning Surge Protectors, to reach good protective effect.
As shown in Figure 4; The lightning protection device that connects main inlet wire for the utility model wind power generation set grid-connection is an embodiment sketch map again; The utility model also comprises the anti-thunder and lightning Surge Protector fire prevention of B level box 5; It is coated on anti-thunder and lightning Surge Protector 3 of said B level phase line and the anti-thunder and lightning Surge Protector protection of B level partition 4, because, because on the structure; Consider the distribution system of using be the 400/690V system, require the creepage distance of employed first and second inter-stage of lightning protection for power supply and electric clearance must reach safety requirements.Promptly must satisfy being not less than certain above distance when mounted between any two lightning-protection modules, also can adopt corresponding quarantine measures.Be employed in the preceding fuse that a constant volume is installed of the anti-thunder and lightning Surge Protector of the anti-thunder and lightning Surge Protector of the first order and the second level simultaneously.Because it is less that the main circuit breaker cabinet space of anti-thunder and lightning Surge Protector is installed; Maybe be also very limited with the electrical distance of miscellaneous equipment; And one-level lightning protection energy reaches M level joule; Have very big instantaneous energy, prevent to cause the incident of lighting a fire so can install the box of an insulation additional in the outside of first order lightning protection device, more safe and reliable.
In sum; The utility model provides a kind of wind power generation set grid-connection to connect the lightning protection device of main inlet wire; It is through the anti-thunder and lightning Surge Protector of the B+C level that the 690VAC electric pressure is installed before the main circuit breaker inlet wire of column foot, makes that like this lightning current in the column foot is effectively released step by step when thunderbolt takes place; And the reasonable analysis that its structural manufacturing process is carried out design, thus, this device can well solve the anti-thunder and lightning surge problem that wind power generation set grid-connection connects main inlet wire, has increased wind turbine generator global reliability and fail safe, has improved on-road efficiency.
More than explanation is just illustrative as far as the utility model; And nonrestrictive, those of ordinary skills understand, under the situation of spirit that does not break away from following accompanying claims and limited and scope; Can make many modifications; Change, or equivalence, but all will fall in the protection range of the utility model.
Claims (8)
1. a wind power generation set grid-connection connects the lightning protection device of main inlet wire, it is characterized in that, it comprises the outer main inlet wire of three tower tubes; Cabin control cubicle main line; The main circuit breaker that is incorporated into the power networks, three anti-thunder and lightning Surge Protectors of B level phase lines, three anti-thunder and lightning Surge Protectors of C level phase lines; Wherein, Described three cabin control cubicle main lines link to each other with the outer main inlet wire of said tower tube through the said main circuit breaker that is incorporated into the power networks, and the anti-thunder and lightning Surge Protector of said three B level phase lines connects the outer main inlet wire of said three tower tubes, and the anti-thunder and lightning Surge Protector of said three C level phase lines connects the outer main inlet wire of said three tower tubes.
2. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire; It is characterized in that; Also comprise three B level phase line fuses, the anti-thunder and lightning Surge Protector of described three B level phase lines connects the outer main inlet wire of said three tower tubes through described three B level phase line fuses.
3. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire; It is characterized in that; Also comprise three C level phase line fuses, the anti-thunder and lightning Surge Protector of described three C level phase lines connects the outer main inlet wire of said three tower tubes through described three C level phase line fuses.
4. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire, it is characterized in that, is provided with the anti-thunder and lightning Surge Protector protection of B level partition between the anti-thunder and lightning Surge Protector of described three B level phase lines.
5. a kind of wind power generation set grid-connection according to claim 4 connects the lightning protection device of main inlet wire; It is characterized in that; Also comprise the anti-thunder and lightning Surge Protector fire prevention of B level box, it is coated on anti-thunder and lightning Surge Protector of said B level phase line and the anti-thunder and lightning Surge Protector protection of said B level partition.
6. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire, it is characterized in that, is provided with the anti-thunder and lightning Surge Protector protection of C level partition between the anti-thunder and lightning Surge Protector of described three C level phase lines.
7. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire, it is characterized in that, the electric pressure of the anti-thunder and lightning Surge Protector of described B level phase line is 690VAC.
8. a kind of wind power generation set grid-connection according to claim 1 connects the lightning protection device of main inlet wire, it is characterized in that, the electric pressure of the anti-thunder and lightning Surge Protector of described C level phase line is 690VAC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265894U CN202134908U (en) | 2011-07-26 | 2011-07-26 | Lightning protection protective device of wind generating set connected with main inlet wire through connected grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265894U CN202134908U (en) | 2011-07-26 | 2011-07-26 | Lightning protection protective device of wind generating set connected with main inlet wire through connected grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134908U true CN202134908U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120265894U Expired - Lifetime CN202134908U (en) | 2011-07-26 | 2011-07-26 | Lightning protection protective device of wind generating set connected with main inlet wire through connected grid |
Country Status (1)
| Country | Link |
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| CN (1) | CN202134908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829402A (en) * | 2019-11-05 | 2020-02-21 | 大唐可再生能源试验研究院有限公司 | Lightning protection system for wind field current collection line |
-
2011
- 2011-07-26 CN CN201120265894U patent/CN202134908U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829402A (en) * | 2019-11-05 | 2020-02-21 | 大唐可再生能源试验研究院有限公司 | Lightning protection system for wind field current collection line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |