CN209844208U - Electric wire netting thunderbolt clamping protection device - Google Patents
Electric wire netting thunderbolt clamping protection device Download PDFInfo
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- CN209844208U CN209844208U CN201921082783.7U CN201921082783U CN209844208U CN 209844208 U CN209844208 U CN 209844208U CN 201921082783 U CN201921082783 U CN 201921082783U CN 209844208 U CN209844208 U CN 209844208U
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Abstract
The utility model discloses a lightning strike clamping protection device for an electric network, which comprises a clamping protector body, wherein one end of the clamping protector body is connected with a discharge assembly, and the other end of the clamping protector body is connected with a connecting assembly; the subassembly that discharges includes the last ball that discharges of mutual disposition, discharges down the ball, goes up the ball that discharges and is connected with the spliced pole of arranging along the clamper protector body axial, and the spliced pole is worn to be equipped with the last fixed disk of locating the ball top that discharges, the utility model discloses a discharge gap is adjusted to the mode of slip spliced pole. And the layout application in different lines is convenient. The structure of adjustable discharge gap has ensured the controllability and the electric arc stability of discharging of discharge ball clearance, and the adjustment is rational in infrastructure, and the installation is maintained conveniently, and can reduce the trip rate by a wide margin, reduces the tripping operation number of times.
Description
Technical Field
The utility model relates to a technical equipment field is hit in the electric wire netting lightning protection, concretely relates to electric wire netting thunderbolt clamper protection device.
Background
With the development of the scientific and technical level, people have higher and higher dependence on electric energy. Sudden power failure accidents bring huge economic losses to society and directly affect the direct economic benefits and the enterprise images of power supply enterprises, so that the safe operation level of a power grid is improved, and the improvement of the power supply reliability is the primary task of a power system.
The 10 kV-35 kV line is an important line of a power distribution network in China, electric energy is directly distributed to vast users, the lightning resistance level of the distribution line is generally low due to the characteristics of the distribution line, once lightning strike occurs, a vicious accident that line equipment is damaged or the whole line trips easily occurs, and the serious accidents happen more and more in coastal areas of China, particularly in southern coastal areas. Therefore, aiming at the lightning protection measures of the 10-35 kV distribution network line, diversified or differentiated lightning protection measures are adopted by the national power grid, the southern power grid and each local power grid to achieve a certain effect when the lightning protection measures are used in the 10-35 kV distribution network line. At present, a zinc oxide arrester is mainly adopted to protect a line, but the existing arrester has the following defects:
1. technical parameters of valve plates inside the lightning arrester are difficult to be consistent in steep wave, lightning wave and operating wave protection margin, so that power frequency leakage current flows into the ground during long-term networking operation, thermal breakdown explosion is easily caused, and accelerated aging of the valve plates inside the lightning arrester during long-term networking operation causes line grounding fault.
2. The arrester needs extra grounding in installation, and the installation is inconvenient, and the maintenance is difficult. When the lightning arrester is installed on a large area of a line, if the lightning arrester has a ground fault, a large amount of manpower, material resources and time are needed to search the fault. In addition, the resistivity of the soil is high, the resistance reduction difficulty of the grounding body is high, and the phenomenon of stealing the grounding body is serious, so that the installed lightning arrester fails.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model discloses aim at solving one of the technical problem among the correlation technique at least to a certain extent. Therefore, the utility model aims to provide a power grid lightning strike clamping protection device, which is convenient to install, has a wide adjusting range and can greatly reduce the tripping rate; the specific technical scheme is as follows:
a lightning clamping protection device for a power grid comprises a clamping protector body, wherein one end of the clamping protector body is connected with a discharging assembly, and the other end of the clamping protector body is connected with a connecting assembly; the discharge assembly comprises an upper discharge ball and a lower discharge ball which are oppositely arranged, the upper discharge ball is connected with a connecting column which is axially arranged along the clamp protector body, an upper fixing disc which is arranged above the upper discharge ball penetrates through the connecting column, a fixing shaft sleeve which is sleeved on the connecting column is arranged on the upper fixing disc, a plurality of first fixing studs which are arranged around the connecting column are screwed on the periphery of the fixing shaft sleeve, and the end part of the first fixing stud is abutted against the outer peripheral surface of the connecting column after being pre-tightened; the lower discharge ball is connected with the upper end of the clamp protector body, and a lower fixed disc is fixed at the upper end of the clamp protector body; a plurality of insulating fixed columns are connected between the upper fixed disk and the lower fixed disk.
In the technical scheme: the subassembly that discharges is installed in the upper end of clamp protector body, the last ball that discharges of subassembly and the ball mutual disposition that discharges down, and between last fixed disk and lower fixed disk, go up the fixed disk and can play the effect of covering discharge ball and discharging the ball with lower fixed disk, it discharges to reduce when drenching and external filth influence, go up the discharge ball and discharge the distance between the ball that discharges promptly discharge the clearance and can adjust according to the in-service use condition, relative position between spliced pole and the fixed axle sleeve is adjusted through the mode of slip spliced pole can adjust the discharge clearance between discharge ball and the discharging ball. And the layout application in different lines is convenient. The structure of adjustable discharge gap has ensured the controllability and the electric arc stability of discharging of discharge ball clearance, and the adjustment is rational in infrastructure, and the installation is maintained conveniently, and can reduce the trip rate by a wide margin, reduces the tripping operation number of times.
The optimized technical scheme is characterized in that a binding post is arranged at the upper end of the connecting post, an elastic insulating cover is sleeved on the binding post, a lead connecting part is arranged on the elastic insulating cover, and a lead hole communicated with the elastic insulating cover is formed in the lead connecting part.
The preferred technical scheme is characterized in that a plurality of limiting grooves are formed in the peripheral surface of the connecting column and are axially arranged along the connecting column, limiting clamping protrusions matched with the limiting grooves in a sliding mode are arranged on the inner wall of the fixing shaft sleeve, and after the first fixing studs are pre-tightened, the end portions of the first fixing studs correspondingly abut against the bottom wall of one limiting groove.
The optimized technical scheme is characterized in that a fixed disc screwing part is arranged at the upper end of the clamp protector, the lower discharge ball is fixed at the upper end of the fixed disc screwing part, and the fixed disc screwing part is in screwed connection with a connecting hole in the geometric center of the lower fixed disc.
The preferable technical scheme is characterized in that the connecting assembly comprises an insulating connecting plate fixed at the lower end of the clamp protector body, and a plurality of second fixing studs arranged around the mounting groove are arranged on the periphery of the corresponding mounting groove of the insulating connecting plate.
The preferable technical scheme is characterized in that a connecting frame is fixed at one end, far away from the installation slot, of the insulating connecting plate, and the connecting frame is fixedly connected with the line cross arm.
The preferable technical scheme is characterized in that the upper discharge ball, the lower discharge ball and the clamp protector body are coaxially arranged.
The utility model has the advantages that: the utility model provides a power grid thunderbolt clamp protection device can be overall arrangement in the circuit of difference be used, goes up the discharge ball and discharges the clearance promptly between the ball and can adjust according to the in-service use condition, adjusts the relative position between spliced pole and the fixed axle sleeve through the mode of slip spliced pole and can adjust the discharge clearance between discharge ball and the ball of discharging down. The structure of adjustable discharge gap has ensured the controllability and the electric arc stability that discharge ball clearance discharges, and whole adjustment is rational in infrastructure, and the installation is maintained conveniently, can reduce the trip rate by a wide margin, reduces the trip number of times, has higher practical value.
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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a front view of a clamping protection device for lightning strike of a power grid according to an embodiment.
Fig. 2 is a schematic connection component diagram of the clamping protection device for lightning strike of the power grid according to an embodiment.
The meanings indicated by the respective reference numerals are as follows; the clamp protector comprises a clamp protector body 1, a fixed disc screwed part 101, an upper fixed disc 2, a lower fixed disc 3, an insulating fixed column 4, a lightning current lead 5, a second fixed stud 6, an insulating connecting plate 7, a connecting frame 8, a connecting column 9, a lower discharging ball 10, an upper discharging ball 11, a fixed shaft sleeve 12, a first fixed stud 13, a wiring terminal 14 and a circuit cross arm 15.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.
As shown in fig. 1 and fig. 2, in an embodiment, the utility model provides a power grid lightning strike clamping protection device, which comprises a clamping protector body 1, wherein one end of the clamping protector body 1 is connected with a discharging component, and the other end is connected with a connecting component; the discharge assembly comprises an upper discharge ball 11 and a lower discharge ball 10 which are oppositely arranged, the upper discharge ball 11 is connected with a connecting post 9 which is axially arranged along the clamp protector body 1, the connecting post 9 penetrates through an upper fixed disc 2 which is arranged above the upper discharge ball 11, the upper fixed disc 2 is provided with a fixed shaft sleeve 12 which is sleeved on the connecting post 9, the periphery of the fixed shaft sleeve 12 is in threaded connection with a plurality of first fixing studs 13 which are arranged around the connecting post 9, and the end part of the first fixing stud 13 abuts against the peripheral surface of the connecting post 9 after being pre-tightened; the lower discharge ball 10 is connected with the upper end of the clamp protector body 1, a lower fixed disc 3 is fixed at the upper end of the clamp protector body 1, and the lower fixed disc 3 is positioned below the lower discharge ball 10; a plurality of insulating fixed columns 4 are connected between the upper fixed disk 2 and the lower fixed disk 3. The discharge assembly is arranged at the upper end of the clamp protector body 1, an upper discharge ball 11 and a lower discharge ball 10 of the discharge assembly are oppositely arranged, and between an upper fixed disc 2 and a lower fixed disc 3, the upper fixed disc 2 and the lower fixed disc 3 can play a role of shielding the upper discharge ball 11 and the lower discharge ball 10, so that the discharge of the discharge balls is reduced when the discharge assembly is in rain or is influenced by external pollutants, the distance between the upper discharge ball 11 and the lower discharge ball 10 is a discharge gap which can be adjusted according to actual use conditions, the discharge gap between the upper discharge ball 11 and the lower discharge ball 10 can be adjusted by adjusting the relative position between a connecting column 9 and a fixed shaft sleeve 12 in a sliding connection column 9 mode, and after the discharge gap is adjusted, the tail end of a first fixed stud 13 is abutted against the outer peripheral surface of the connecting column 9 by screwing the first fixed stud 13, so as to prevent the connecting, the stability of the discharge assembly is improved. And the layout application in different lines is convenient. The structure of adjustable discharge gap has ensured the controllability and the electric arc stability of discharging of discharge ball clearance, and the adjustment is rational in infrastructure, and the installation is maintained conveniently, and can reduce the trip rate by a wide margin, reduces the tripping operation number of times.
As shown in fig. 1 and fig. 2, in this embodiment, the clamp protector body 1 is a commonly used structure in the field of lightning protection of a power grid, a discharge circuit is disposed in the clamp protector body 1, the discharge circuit includes a buffer resistor, a pulse capacitor, a discharge capacitor, and the like, and the technical principle is as follows: the lightning current instantly charges the pulse electricity through the buffer resistor disc, and discharges through the discharge coil after clipping, so that the power grid line is protected from lightning stroke. This circuit is well known in the art and will not be described in detail herein. Which is electrically connected to the lower discharging ball 10 when mounted.
As shown in fig. 1 and fig. 2, when installing in the power grid line, the lightning current drainage in the power grid line needs to be connected with upper discharge ball 11, and in this embodiment, when the device is connecting the lightning current drainage, the lightning current drainage is connected with spliced pole 9, and in order to be connected to spliced pole 9, be equipped with terminal 14 on spliced pole 9, the cover has the elastic insulation cover on terminal 14, is equipped with the lead connection portion on the elastic insulation cover, is equipped with the communicating pin hole with the elastic insulation cover on the lead connection portion. Like this, when the installation, the thunder and lightning drainage wire is connected with terminal 14 on spliced pole 9 after inserting elastic insulation cover through the pin hole, covers elastic insulation cover on terminal 14 again, carries out insulating seal to terminal 14, can stop the circuit effectively and drop the damage phenomenon, because elastic insulation cover has elasticity, applicable in not equidimension terminal 14, its shade is reliable, convenient to use.
As shown in fig. 1 and 2, in order to improve the stability of the connecting column 9 in the sliding process, a plurality of limiting grooves are arranged on the outer circumferential surface of the connecting column 9 along the axial direction of the connecting column 9, limiting clamping protrusions which are matched with the limiting grooves in a sliding manner are arranged on the inner wall of the fixing shaft sleeve 12, and after each first fixing stud 13 is pre-tightened, the end of each first fixing stud 13 correspondingly abuts against the bottom wall of one limiting groove. When discharging ball 11 and the discharge clearance of putting between the ball 10 of discharging on the mode adjustment of sliding connection post 9, spacing card is protruding and spacing groove slip adaptation, prevents spliced pole 9 circumferential direction, and first fixing stud 13 can support and lean on the diapire at spliced pole 9 spacing groove after fixed, further improves the fastness that first fixing stud 13 is fixed.
As shown in fig. 1 and 2, since the upper fixed disk 2 and the lower fixed disk 3 are fixed by the insulating fixed column 4, and the discharge assembly is mounted on the upper end of the clamp protector body 1 through the lower fixed disk 3, in this embodiment, a fixed disk screwing part 101 is arranged on the upper end of the clamp protector, the lower discharge ball 10 is fixed on the upper end of the fixed disk screwing part 101, and the fixed disk screwing part 101 is in screwed fit with a connecting hole in the geometric center of the lower fixed disk 3. When the whole discharge assembly of installation, with fixed disk 3 down through the mode of spiro union fix fixed disk spiro union portion 101 can, not only make things convenient for operating personnel to assemble to can improve the fastness of installation. The lower discharge ball 10 is fixed on the upper end of the fixed disc screwing part 101 and then connected with a discharge circuit in the clamp protector body 1 through a circuit.
As shown in fig. 1 and 2, the whole device is installed in a power grid line through a connecting assembly, the connecting assembly comprises an insulating connecting plate 7 fixed at the lower end of a clamp protector body 1, one end, connected with the clamp protector body 1, of the insulating connecting plate 7 is provided with an installation slot matched with the outer diameter of the lower end of the clamp protector body 1, and the insulating connecting plate 7 is provided with a plurality of second fixing studs 6 arranged around the installation slot in the periphery corresponding to the installation slot. The lower end of the clamp protector body 1 can be inserted into the mounting groove, the clamp protector body 1 is fixed in the mounting groove through the second fixing stud 6, and the insulating connecting plate 7 is made of insulating materials to avoid electric conduction. Furthermore, a connecting frame 8 is fixed at one end of the insulating connecting plate 7 far away from the installation slot position, and the connecting frame 8 is fixedly connected with the circuit cross arm 15. In this way, the connecting bracket 8 can be fixed to the line cross arm 15 of the power line after being fixed to the insulating connecting plate 7.
As shown in fig. 1 and 2, in order to improve the lightning protection effect, the upper discharge ball 11, the lower discharge ball 10 and the clamp protector body 1 should be coaxially arranged to improve the discharge effect.
In the specification of the present invention, a large number of specific details are explained. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified, or some or all of the technical features can be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a power grid thunderbolt clamping protection device which characterized in that: the clamp protector comprises a clamp protector body (1), wherein one end of the clamp protector body (1) is connected with a discharge assembly, and the other end of the clamp protector body is connected with a connecting assembly;
the discharge assembly comprises an upper discharge ball (11) and a lower discharge ball (10) which are oppositely arranged, the upper discharge ball (11) is connected with a connecting column (9) which is axially arranged along the clamp protector body (1), the connecting column (9) penetrates through an upper fixed disc (2) which is arranged above the upper discharge ball (11), a fixed shaft sleeve (12) which is sleeved on the connecting column (9) is arranged on the upper fixed disc (2), a plurality of first fixing studs (13) which are arranged around the connecting column (9) are screwed on the periphery of the fixed shaft sleeve (12), and the end part of each first fixing stud (13) abuts against the outer peripheral surface of the connecting column (9) after being pre-tightened;
the lower discharge ball (10) is connected with the upper end of the clamping protector body (1), and a lower fixed disc (3) is fixed at the upper end of the clamping protector body (1); a plurality of insulating fixing columns (4) are connected between the upper fixing disc (2) and the lower fixing disc (3).
2. The electrical grid lightning strike clamp protection device of claim 1, characterized in that:
the connecting post is characterized in that a connecting post (14) is arranged at the upper end of the connecting post (9), an elastic insulating cover is sleeved on the connecting post (14), a lead connecting portion is arranged on the elastic insulating cover, and a lead hole communicated with the elastic insulating cover is formed in the lead connecting portion.
3. The electrical grid lightning strike clamp protection device of claim 1, characterized in that:
the outer peripheral surface of the connecting column (9) is provided with a plurality of limiting grooves which are axially arranged along the connecting column (9), the inner wall of the fixed shaft sleeve (12) is provided with a limiting clamping boss which is matched with the limiting grooves in a sliding mode, and after the first fixing stud is pre-tightened, the end part of each first fixing stud correspondingly abuts against the bottom wall of one limiting groove.
4. The electrical grid lightning strike clamp protection device of claim 1, characterized in that:
the upper end of the clamping protector is provided with a fixed disc screwed part (101), the lower discharge ball (10) is fixed at the upper end of the fixed disc screwed part (101), and the fixed disc screwed part (101) is in screwed connection with a connecting hole which is arranged at the geometric center of the lower fixed disc (3).
5. The electrical grid lightning strike clamp protection device of claim 1, characterized in that:
the connecting assembly comprises an insulating connecting plate (7) fixed to the lower end of the clamp protector body (1), one end, connected with the clamp protector body (1), of the insulating connecting plate (7) is provided with an installation slot matched with the outer diameter of the lower end of the clamp protector body (1), and a plurality of second fixing studs (6) arranged around the installation slot are arranged on the periphery of the corresponding installation slot of the insulating connecting plate (7).
6. The electrical grid lightning strike clamp protection device of claim 5, characterized in that:
and one end of the insulating connecting plate (7) far away from the mounting slot position is fixed with a connecting frame (8), and the connecting frame (8) is fixedly connected with the line cross arm (15).
7. The electrical grid lightning strike clamp protection device of claim 1, characterized in that:
the upper discharging ball (11), the lower discharging ball (10) and the clamping protector body (1) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082783.7U CN209844208U (en) | 2019-07-11 | 2019-07-11 | Electric wire netting thunderbolt clamping protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082783.7U CN209844208U (en) | 2019-07-11 | 2019-07-11 | Electric wire netting thunderbolt clamping protection device |
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| Publication Number | Publication Date |
|---|---|
| CN209844208U true CN209844208U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921082783.7U Active CN209844208U (en) | 2019-07-11 | 2019-07-11 | Electric wire netting thunderbolt clamping protection device |
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| Country | Link |
|---|---|
| CN (1) | CN209844208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142347A (en) * | 2021-11-29 | 2022-03-04 | 国网湖北省电力有限公司武汉市新洲区供电公司 | High-safety lightning arrester for electric power facilities |
-
2019
- 2019-07-11 CN CN201921082783.7U patent/CN209844208U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142347A (en) * | 2021-11-29 | 2022-03-04 | 国网湖北省电力有限公司武汉市新洲区供电公司 | High-safety lightning arrester for electric power facilities |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210618 Address after: 712000 room 325, Sixi Province, Chongwen Tower Scenic Area, Chongwen Town, Jinghe new town, Xixian New District, Xianyang City, Shaanxi Province Patentee after: Shaanxi Energy Research Institute Co.,Ltd. Address before: No.97, Yinjiagou Road, Baota District, Yan'an City, Shaanxi Province Patentee before: Yan'an Power Supply Branch of Shaanxi Local Power (Group) Co.,Ltd. |
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| TR01 | Transfer of patent right |