CN114142347B - High-safety lightning arrester for electric power facilities - Google Patents
High-safety lightning arrester for electric power facilities Download PDFInfo
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- CN114142347B CN114142347B CN202111430098.0A CN202111430098A CN114142347B CN 114142347 B CN114142347 B CN 114142347B CN 202111430098 A CN202111430098 A CN 202111430098A CN 114142347 B CN114142347 B CN 114142347B
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- insulating
- connecting plate
- metal rod
- rod body
- electrode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/02—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
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- Thermistors And Varistors (AREA)
Abstract
The invention designs a high-safety lightning arrester for an electric power facility, which comprises a lightning arrester and an adjusting module, wherein the lightning arrester comprises a metal rod body, an insulating porcelain bottle is arranged outside the metal rod body, two wiring conductors which are respectively used for being connected with the adjusting module and an external protected device are arranged on the metal rod body, and the two wiring conductors extend out of the insulating porcelain bottle; the invention provides a high-safety electric power facility lightning arrester, which comprises a bottom plate arranged at the bottom of a metal rod body, wherein an insulating tube body is arranged on the bottom plate, a moving electrode is arranged at one end, close to the metal rod body, of the insulating tube body, a fixed electrode is arranged at the other end of the insulating tube body, the moving electrode can slide in the insulating tube body, the moving electrode is connected with a wiring conductor on the metal rod body, and the fixed electrode is grounded.
Description
Technical Field
The invention relates to the technical field of lightning protection of electric power facilities, in particular to a high-safety lightning protection device for electric power facilities.
Background
In a power transmission and transformation system line, a lightning arrester is used as an important overvoltage protection device, is arranged on a power transmission tower and connected with a line insulator in series and in parallel, and is used for limiting the lightning overvoltage of a power transmission line and reducing the lightning flashover rate; with the continuous expansion of the scale of the power grid, the number of tripping and power failure accidents caused by the power transmission line is increasing. Due to the overvoltage characteristics of the overhead power transmission and distribution line, the particularity of installing the lightning arrester on the overhead power transmission and distribution line and the requirement of maintenance-free equipment, the lightning arrester with the out-of-band series gap is widely applied to the overhead power transmission and distribution line.
The lightning arrester with the out-of-band series gap is installed on an overhead power transmission and distribution line, because the pole tower on which the lightning arrester with the out-of-band series gap is installed is divided into various types such as a tangent tower, a corner tower and the like, the landform and the appearance of the installation point influence the position of a conducting wire, the actual installation environment of the lightning arrester with the out-of-band series gap is complex, great influence is caused on the adjustment and the maintenance of the relative position and the gap distance of two electrodes in the gap of the lightning arrester with the out-of-band series gap, and the protection performance and the reliability of the lightning arrester with the out-of-band series gap after the lightning arrester is installed are directly influenced. Therefore, how to efficiently and flexibly adjust the relative position of the electrodes of the lightning arrester and the size specification of the fit clearance thereof to ensure the protection effect of the lightning arrester on the relevant lines is an important technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
Aiming at the problems, the invention designs a high-safety lightning arrester for electric power facilities, which comprises a lightning arrester and an adjusting module, wherein the lightning arrester comprises a metal rod body, an insulating porcelain bottle is arranged outside the metal rod body, two wiring conductors which are respectively used for being connected with the adjusting module and an external protected device are arranged on the metal rod body, and the two wiring conductors extend out of the insulating porcelain bottle;
the adjusting module comprises a bottom plate arranged at the bottom of the metal rod body, an insulating tube body is arranged on the bottom plate, a moving electrode is arranged at one end, close to the metal rod body, of the insulating tube body, a fixed electrode is arranged at the other end of the insulating tube body, the moving electrode can slide in the insulating tube body, the moving electrode is connected with a wiring conductor on the metal rod body, and the fixed electrode is grounded;
the bottom plate is provided with a first supporting platform which is U-shaped and provided with an adjusting groove, the adjusting groove is internally provided with a connecting shaft, a first connecting plate, a second connecting plate, a third connecting plate and an insulating protective sleeve are respectively arranged between the connecting shaft and the insulating pipe body, wherein,
the first connecting plate is connected with the connecting shaft, and the second connecting plate is hinged with the first connecting plate;
the third connecting plate is hinged with the second connecting plate and the insulating protective sleeve;
the insulating protective sleeve is arranged on the outer side of the moving electrode;
the outer diameter of the insulating protective sleeve is smaller than the pipe diameter of the insulating pipe body.
Further, install first terminal on the first supporting bench, the moving electrode pass through the wire with first terminal connection, wherein, the wire inlays to be established in first supporting bench and first connecting plate, second connecting plate, the third connecting plate.
Furthermore, the end plate is installed to the one end of insulating body, the middle part of end plate be equipped with the trompil that insulating protective sheath external diameter matches, insulating protective sheath is close to the one end of deciding the electrode is installed and is located dog in the insulating body, the external diameter of dog is greater than the aperture of trompil.
Further, with adjusting module connects the wiring conductor with be equipped with the connecting elements between the first terminal, the connecting elements including install with adjusting module connects metal ball on the wiring conductor, and install insulation box body on the first terminal, insulation box body comprises last box body and lower box body are articulated, wherein, it can hold to go up all to have seted up on box body and the lower box body metal ball's constant head tank, works as metal ball install in during the constant head tank, metal ball with first terminal offsets.
Furthermore, a plurality of grooves are formed in the insulating tube body.
Further, an isolation ring is installed in the insulating tube body, and the isolation ring is made of an insulating material and is arranged between the fixed electrode and the movable electrode.
Further, decide the electrode and pass through ground connection module ground connection, ground connection module includes the second brace table, decide the electrode and install on the second brace table, the bottom of second brace table install with decide the second terminal that the electrode electricity is connected, the one end of second terminal is equipped with the earthing pole, the earthing pole with install two between the second terminal and be equipped with gapped sheetmetals in the middle of, two the outside of sheetmetal is equipped with the protective housing.
The high-safety lightning arrester for the electric power facilities, which is designed by the invention, realizes the effect of flexibly adjusting the gap between the two electrodes, so that the lightning arrester provided by the invention can be suitable for more electric power facilities.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 shows a schematic front view of a lightning protection device according to the invention;
FIG. 2 is an enlarged schematic view of part A of the present invention;
fig. 3 shows a schematic view of a back side structure of the lightning arrester according to the invention;
FIG. 4 is an enlarged schematic view of part B of the present invention;
fig. 5 shows a front cross-sectional view of a lightning conductor according to the invention.
In the figure: 1. a metal rod body; 2. an insulating porcelain insulator; 3. a wiring conductor; 4. a base plate; 5. an insulating tube body; 6. a moving electrode; 7. fixing an electrode; 8. a first support table; 9. a second support table; 10. an adjustment groove; 11. a connecting shaft; 12. a first connecting plate; 13. a second connecting plate; 14. a third connecting plate; 15. an insulating protective sleeve; 16. a first terminal post; 17. a metal sphere; 18. an insulating case; 19. positioning a groove; 20. a groove; 21. an end plate; 22. a stopper; 23. a spacer ring; 24. a second terminal; 25. a wire; 26. a ground post; 27. a metal sheet; 28. a protective shell.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, the present invention provides a high-safety lightning arrester for an electric power facility, which includes a lightning arrester and an adjusting module, wherein the lightning arrester includes a metal rod 1, an insulating porcelain insulator 2 is disposed outside the metal rod 1, two wiring conductors 3 for connecting the adjusting module and an external protected device are mounted on the metal rod 1, and the two wiring conductors 3 extend out of the insulating porcelain insulator 2;
the adjusting module comprises a bottom plate 4 arranged at the bottom of the metal rod body 1, an insulating tube body 5 is arranged on the bottom plate 4, one end, close to the metal rod body 1, of the insulating tube body 5 is provided with a moving electrode 6, the other end of the insulating tube body 5 is provided with a fixed electrode 7, the moving electrode 6 can slide in the insulating tube body 5, the moving electrode 6 is connected with a wiring conductor 3 on the metal rod body 1, and the fixed electrode 7 is grounded;
in the embodiment of the invention, the isolating ring 23 is arranged between the fixed electrode 7 and the movable electrode 6, the isolating ring 23 can prevent the fixed electrode 7 and the movable electrode 6 from directly contacting a short circuit due to misoperation of a user, and the isolating ring 23 is made of an insulating material;
a first supporting platform 8 is arranged on the bottom plate 4, the first supporting platform 8 is U-shaped, an adjusting groove 10 is arranged on the first supporting platform 8, a connecting shaft 11 is arranged in the adjusting groove 10, a first connecting plate 12, a second connecting plate 13, a third connecting plate 14 and an insulating protective sleeve 15 are respectively arranged between the connecting shaft 11 and the insulating pipe body 5, wherein,
the first connecting plate 12 is connected with the connecting shaft 11, and the second connecting plate 13 is hinged with the first connecting plate 12;
the third connecting plate 14 is hinged with the second connecting plate 13 and the insulating protective sleeve 15;
the insulating protective sleeve 15 is arranged on the outer side of the moving electrode 6;
in practical use, since the first connecting plate 12, the second connecting plate 13, the third connecting plate 14 and the insulating protection sleeve 15 are hinged to each other, the position of the insulating protection sleeve 15 in the insulating tube body 5 can be changed by changing the position of the connecting shaft 11 at one end of the first connecting plate 12 in the adjusting groove 10;
in the embodiment of the present invention, in order to prevent the movable electrode 6 from falling off from the insulating tube 5 due to a user's misoperation, in particular, the outer diameter of the insulating sheath 15 is smaller than the diameter of the insulating tube 5, an end plate 21 is installed at one end of the insulating tube 5, an opening matched with the outer diameter of the insulating sheath 15 is formed in the middle of the end plate 21, a stopper 22 installed in the insulating tube 5 is installed at one end of the insulating sheath 15 close to the fixed electrode 7, the outer diameter of the stopper 22 is larger than the diameter of the opening, and the stopper 22 limits the moving position of the movable electrode 6 to prevent the movable electrode 6 from falling off from the insulating tube 5.
The first support table 8 is provided with a first binding post 16, and the moving electrode 6 is connected with the first binding post 16 through a lead 25, wherein the lead 25 is embedded in the first support table 8, the first connecting plate 12, the second connecting plate 13 and the third connecting plate 14; the moving electrode 6 is connected with a first binding post 16 through a lead, the first binding post 16 is connected with a wiring conductor 3, and is electrically connected with the metal rod body 1 through the wiring conductor 3;
in the embodiment of the present invention, in order to facilitate the detachment and installation between the connection of the first terminal 16 and the wiring conductor 3, in particular, a connection member is provided between the wiring conductor 3 connected to the adjusting module and the first terminal 16, the connection member includes a metal ball 17 mounted on the wiring conductor 3 connected to the adjusting module, and an insulating box 18 mounted on the first terminal 16, the insulating box 18 is formed by hinging an upper box and a lower box, wherein both the upper box and the lower box are provided with positioning grooves 19 capable of accommodating the metal ball 17, and when the metal ball 17 is mounted in the positioning groove 19, the metal ball 17 abuts against the first terminal 16.
In the embodiment of the invention, the insulating tube 5 is provided with the plurality of grooves 20, and when breakdown arcs occur inside the insulating tube 5, large heat can be generated, so that the surface area of the insulating tube 5 is increased by forming the grooves 20, and the heat dissipation efficiency of the insulating tube 5 can be improved.
In the embodiment of the present invention, in order to prevent the situation that the short circuit occurs between the fixed electrode 7 and the moving electrode 6 is always grounded, therefore, in practical use, the fixed electrode 7 is grounded through the grounding module, the grounding module includes the second supporting platform 9, the fixed electrode 7 is installed on the second supporting platform 9, the bottom of the second supporting platform 9 is installed with the second terminal 24 electrically connected with the fixed electrode 7, one end of the second terminal 24 is provided with the grounding pillar 26, two metal sheets 27 with a gap therebetween are installed between the grounding pillar 26 and the second terminal 24, the two metal sheets 27 are externally provided with the protective shell 28, a gap also exists between the second terminal 24 and the grounding pillar 26, and a capacitor element capable of being broken through is formed by the two metal sheets 27, thereby adding a protection.
In conclusion, the high-safety lightning arrester for electric power facilities, which is designed by the invention, realizes the effect of flexibly adjusting the gap between the two electrodes, so that the lightning arrester provided by the invention can adapt to more electric power facilities.
Finally, it is further noted that, herein, relational terms such as one and the other, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The lightning arrester of the high-safety electric power facility comprises a lightning arrester and an adjusting module, and is characterized in that the lightning arrester comprises a metal rod body (1), an insulating porcelain insulator (2) is arranged outside the metal rod body (1), two wiring conductors (3) which are respectively used for being connected with the adjusting module and an external protected device are mounted on the metal rod body (1), and the two wiring conductors (3) extend out of the insulating porcelain insulator (2);
the adjusting module comprises a bottom plate (4) installed at the bottom of the metal rod body (1), an insulating tube body (5) is arranged on the bottom plate (4), a moving electrode (6) is arranged at one end, close to the metal rod body (1), of the insulating tube body (5), a fixed electrode (7) is installed at the other end of the insulating tube body (5), the moving electrode (6) can slide in the insulating tube body (5), the moving electrode (6) is connected with a wiring conductor (3) on the metal rod body (1), and the fixed electrode (7) is grounded;
a first supporting platform (8) is arranged on the bottom plate (4), the first supporting platform (8) is U-shaped, an adjusting groove (10) is formed in the first supporting platform, a connecting shaft (11) is arranged in the adjusting groove (10), a first connecting plate (12), a second connecting plate (13), a third connecting plate (14) and an insulating protective sleeve (15) are respectively arranged between the connecting shaft (11) and the insulating pipe body (5), wherein,
the first connecting plate (12) is connected with the connecting shaft (11), and the second connecting plate (13) is hinged with the first connecting plate (12);
the third connecting plate (14) is hinged with the second connecting plate (13) and the insulating protective sleeve (15);
the insulating protective sleeve (15) is arranged on the outer side of the moving electrode (6);
the outer diameter of the insulating protective sleeve (15) is smaller than the pipe diameter of the insulating pipe body (5).
2. A lightning protection device according to claim 1, characterized in that a first terminal (16) is mounted on the first support platform (8), and the moving electrode (6) is connected to the first terminal (16) through a wire (25), wherein the wire (25) is embedded in the first support platform (8) and the first connecting plate (12), the second connecting plate (13), and the third connecting plate (14).
3. A lightning protection device according to claim 1, characterized in that an end plate (21) is mounted at one end of the insulating tube (5), an opening matched with the outer diameter of the insulating protective sleeve (15) is arranged in the middle of the end plate (21), a stop block (22) arranged in the insulating tube (5) is mounted at one end of the insulating protective sleeve (15) close to the fixed electrode (7), and the outer diameter of the stop block (22) is larger than the diameter of the opening.
4. A lightning protection device according to claim 2, characterized in that a connecting member is provided between the connection conductor (3) connected to the regulating module and the first terminal (16), the connecting member comprises a metal ball (17) mounted on the connection conductor (3) connected to the regulating module, and an insulating box (18) mounted on the first terminal (16), the insulating box (18) is formed by an upper box and a lower box which are hinged together, wherein the upper box and the lower box are both provided with a positioning slot (19) for receiving the metal ball (17), and when the metal ball (17) is mounted in the positioning slot (19), the metal ball (17) abuts against the first terminal (16).
5. A lightning conductor according to claim 1, characterized in that said insulating tubular body (5) is provided with a plurality of grooves (20).
6. A lightning protection device according to claim 1, characterized in that an isolating ring (23) is mounted in the insulating tubular body (5), said isolating ring (23) being made of an insulating material and being provided between the stationary electrode (7) and the moving electrode (6).
7. The lightning protection device according to claim 1, wherein the fixed electrode (7) is grounded through a grounding module, the grounding module comprises a second supporting platform (9), the fixed electrode (7) is mounted on the second supporting platform (9), a second binding post (24) electrically connected with the fixed electrode (7) is mounted at the bottom of the second supporting platform (9), a grounding post (26) is arranged at one end of the second binding post (24), two metal sheets (27) with a gap in the middle are mounted between the grounding post (26) and the second binding post (24), and a protective shell (28) is arranged outside the two metal sheets (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430098.0A CN114142347B (en) | 2021-11-29 | 2021-11-29 | High-safety lightning arrester for electric power facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430098.0A CN114142347B (en) | 2021-11-29 | 2021-11-29 | High-safety lightning arrester for electric power facilities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114142347A CN114142347A (en) | 2022-03-04 |
| CN114142347B true CN114142347B (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111430098.0A Active CN114142347B (en) | 2021-11-29 | 2021-11-29 | High-safety lightning arrester for electric power facilities |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205646797U (en) * | 2016-03-31 | 2016-10-12 | 李金奇 | Overvoltage protector for anti -thunder circuit |
| CN208423456U (en) * | 2018-06-29 | 2019-01-22 | 海南电网有限责任公司海南输变电检修分公司 | A kind of neutral point complete set of protective apparatus |
| CN209844208U (en) * | 2019-07-11 | 2019-12-24 | 陕西省地方电力(集团)有限公司延安供电分公司 | Electric wire netting thunderbolt clamping protection device |
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