CN210985591U - Lightning protection device for overhead transmission line - Google Patents
Lightning protection device for overhead transmission line Download PDFInfo
- Publication number
- CN210985591U CN210985591U CN202020068886.4U CN202020068886U CN210985591U CN 210985591 U CN210985591 U CN 210985591U CN 202020068886 U CN202020068886 U CN 202020068886U CN 210985591 U CN210985591 U CN 210985591U
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- casing
- lightning protection
- connecting rod
- ground wire
- transmission line
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Abstract
The utility model discloses a belong to the electrical engineering technical field, specifically be an overhead transmission line protection device against lightning, including casing, metal connecting rod and ground wire connecting box, the inner chamber lateral wall of casing is provided with the dampproof course, the outer wall fixed mounting of casing has the corrosion resistant layer, transversely be provided with a metal connecting rod in the middle of the inner chamber of casing, fixedly mounted with three alternate conductor spacer on the metal connecting rod, and alternate conductor spacer runs through the casing and extends to the outside, evenly be provided with a plurality of damping gasket on the metal connecting rod, the rear surface fixed mounting of casing has the ground wire connecting box, the top fixed mounting of ground wire connecting box has lightning protection lightning rod, and its is rational in infrastructure, through the cooperation of metal connecting rod, alternate conductor spacer, damping gasket, lightning protection lightning rod and ground wire connecting box, improves lightning protection effect, through the cooperation of dampproof course and corrosion-resistant layer, prevent wearing and tearing and rainwater erosion, increase of service life.
Description
Technical Field
The utility model relates to an electrical engineering technical field specifically is an overhead transmission line lightning protection device.
Background
Lightning stroke is one of important factors influencing safe and stable operation of a power grid. The tripping accidents of the overhead transmission line caused by lightning stroke frequently occur for a long time, and great threat is formed to the safe and stable operation of a power grid. For example, the classification statistics of the power grid faults of the Henan Xinyang power supply company show that in areas with high tripping occurrence rate, tripping caused by lightning stroke accounts for 45-72% of the total tripping frequency. Through calculation, when the lightning protection angle is larger than 20 degrees, the lightning trip-out rate curve of the power transmission line has sudden change, and the lightning trip-out rate is obviously increased. Therefore, the transformation is needed for the power transmission line with the overlarge lightning protection angle. Experience shows that the shielding performance of the lightning protection lightning receiving lightning conductor on the conductor is improved by reducing the lightning protection angle, the probability of the overhead conductor being subjected to shielding failure can be reduced, and the shielding failure tripping rate of the power transmission line is effectively reduced. At present, the reduction of the protection angle is the most direct and effective measure for reducing the shielding failure trip rate of the power transmission line which is acknowledged at home and abroad. For overhead transmission lines, the most direct method for reducing the protection angle is to modify the protection angle of the ground wire by changing the tower structure, but the modification project of the tower head of the tower is complex, the construction period is long, and the cost is high. Therefore, there is a need to design a lightning protection device for overhead transmission lines, which has a simple structure and is effective.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
In view of the problem that exists among the current lightning protection device, provided the utility model discloses.
Therefore, the utility model aims at providing an overhead transmission line lightning protection device can realize at the in-process that uses, prevents wearing and tearing and rain erosion, increase of service life, and the lightning protection effect is better.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
the utility model provides an overhead transmission line lightning protection device, its includes casing, metal connecting rod and ground wire connecting box, the inner chamber lateral wall of casing is provided with the dampproof course, the outer wall fixed mounting of casing has corrosion resistant layer, transversely be provided with a metal connecting rod in the middle of the inner chamber of casing, fixed mounting has three alternate conductor spacer on the metal connecting rod, just alternate conductor spacer runs through the casing and extends to the outside, evenly on the metal connecting rod be provided with a plurality of damping gaskets, the rear surface fixed mounting of casing has the ground wire connecting box, the top fixed mounting of ground wire connecting box has the lightning protection to connect the flashing rod.
As an overhead transmission line lightning protection device's an preferred scheme, wherein: the included angle of the phase-to-phase spacers on the left side and the right side is 20 degrees.
As an overhead transmission line lightning protection device's an preferred scheme, wherein: the corrosion-resistant layer is made of a low-temperature scale corrosion-resistant coating.
As an overhead transmission line lightning protection device's an preferred scheme, wherein: the moisture-proof layer is made of water-absorbing mineral wool.
As an overhead transmission line lightning protection device's an preferred scheme, wherein: the lightning protection lightning rod is connected with the ground wire through the ground wire connecting box.
Compared with the prior art, the beneficial effects of the utility model are that: through this overhead transmission line lightning protection device's setting, structural design is reasonable, and through the cooperation of metal connecting rod, alternate conductor spacer, damping gasket, lightning protection lightning rod and ground wire connecting box, the protection effect is hit in the improvement lightning protection, is convenient for reform transform current line construction, through the cooperation on dampproof course and corrosion resistant layer, prevents wearing and tearing and rainwater erosion, increase of service life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic view of the internal structure of the housing of the present invention.
In the figure; 100 casing, 110 dampproof course, 120 corrosion resistant layer, 200 metal connecting rod, 210 interphase spacer, 230 damping gasket, 300 ground connection box, 310 lightning protection lightning rod.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides a following technical scheme: a lightning protection device for overhead transmission lines, which prevents abrasion and rain erosion during use, prolongs the service life, and has better lightning protection effect, please refer to fig. 1 to 3, and comprises a housing 100, a metal connecting rod 200 and a ground wire connecting box 300;
referring to fig. 1 and fig. 3 again, the moisture-proof layer 110 is disposed on the inner cavity side wall of the casing 100, and the corrosion-resistant layer 120 is fixedly mounted on the outer wall of the casing 100, specifically, the moisture-proof layer 110 is bonded on the inner cavity side wall of the casing 100, the corrosion-resistant layer 120 is bonded on the outer wall of the casing 100, the moisture-proof layer 110 is used for preventing moisture and absorbing water, and the corrosion-resistant layer 120 is used for preventing wear and corrosion and prolonging the service life;
referring to fig. 1 again, a metal connecting rod 200 is transversely disposed in the middle of the inner cavity of the casing 100, three phase-to-phase spacers 210 are fixedly mounted on the metal connecting rod 200, the phase-to-phase spacers 210 extend to the outside through the casing 100, and a plurality of damping spacers 220 are uniformly disposed on the metal connecting rod 200. Specifically, a metal connecting rod 200 is transversely inserted into the middle of an inner cavity of the shell 100, three phase spacers 210 are sleeved on the metal connecting rod 200, the phase spacers 210 penetrate through the shell 100 and extend to the outside, a plurality of damping gaskets 220 are uniformly sleeved on the metal connecting rod 200, the metal connecting rod 200 is used for connecting the phase spacers 210, the phase spacers 210 are used for electrical separation, and the damping gaskets 220 are used for increasing insulativity;
referring to fig. 1 and 2 again, the rear surface of the casing 100 is fixedly provided with a ground connection box 300, the top of the ground connection box 300 is fixedly provided with a lightning protection lightning rod 310, specifically, the rear surface of the casing 100 is screwed with the ground connection box 300, the top of the ground connection box 300 is inserted with the lightning protection lightning rod 310, the ground connection box 300 is provided with the lightning protection lightning rod 310 and a ground wire, and the lightning protection lightning rod 310 is used for increasing the safety.
The working principle is as follows: in the process that overhead transmission line lightning protection device used, at first with equipment fixing on the wire, through metal connecting rod 200, alternate conductor spacer 210, damping gasket 220, lightning protection lightning rod 310 and ground wire connecting box 300's cooperation, improve the lightning protection effect, through the cooperation of dampproof course 110 and corrosion-resistant layer 120, prevent wearing and tearing and rainwater erosion, increase of service life.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides an overhead transmission line lightning protection device which characterized in that: including casing (100), metal connecting rod (200) and ground wire connecting box (300), the inner chamber lateral wall of casing (100) is provided with dampproof course (110), the outer wall fixed mounting of casing (100) has corrosion-resistant layer (120), transversely be provided with a metal connecting rod (200) in the middle of the inner chamber of casing (100), fixed mounting has three alternate conductor spacer (210) on metal connecting rod (200), just alternate conductor spacer (210) run through casing (100) and extend to the outside, metal connecting rod (200) are gone up even and are provided with a plurality of damping shim (220), the rear surface fixed mounting of casing (100) has ground wire connecting box (300), the top fixed mounting of ground wire connecting box (300) has the lightning protection and connects dodge pole (310).
2. The overhead transmission line lightning protection device according to claim 1, characterized in that: the included angle of the phase-to-phase spacers (210) on the left side and the right side is 20 degrees.
3. The overhead transmission line lightning protection device according to claim 1, characterized in that: the corrosion-resistant layer (120) is made of a low-temperature scale corrosion-resistant coating.
4. The overhead transmission line lightning protection device according to claim 1, characterized in that: the moisture-proof layer (110) is made of water-absorbing mineral wool.
5. The overhead transmission line lightning protection device according to claim 1, characterized in that: the lightning protection lightning rod (310) is connected with the ground wire through the ground wire connecting box (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020068886.4U CN210985591U (en) | 2020-01-10 | 2020-01-10 | Lightning protection device for overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020068886.4U CN210985591U (en) | 2020-01-10 | 2020-01-10 | Lightning protection device for overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210985591U true CN210985591U (en) | 2020-07-10 |
Family
ID=71460382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020068886.4U Expired - Fee Related CN210985591U (en) | 2020-01-10 | 2020-01-10 | Lightning protection device for overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210985591U (en) |
-
2020
- 2020-01-10 CN CN202020068886.4U patent/CN210985591U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20210110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |