CN109473245B - 20kV pillar type arrester - Google Patents
20kV pillar type arrester Download PDFInfo
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- CN109473245B CN109473245B CN201810846164.4A CN201810846164A CN109473245B CN 109473245 B CN109473245 B CN 109473245B CN 201810846164 A CN201810846164 A CN 201810846164A CN 109473245 B CN109473245 B CN 109473245B
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- grounding
- grounding rod
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- ball
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention relates to the field of lightning arresters, in particular to a 20kV strut type lightning arrester. The utility model provides a 20kV pillar type arrester, including the arrester body, the top of arrester body is provided with linking bridge, the both sides of linking bridge all are provided with termination, two termination are connected with overhead lead and cable respectively, termination is including the installation fastener, the installation fastener is including pressing from both sides terminal and fixed plate, be provided with the bolt hole on the fixed plate, the fixed plate passes through bolted connection on the linking bridge, the one end that the fixed plate was kept away from to the terminal is provided with the plug wire groove, be provided with earthing device on the linking bridge. The invention has simple installation, combines the insulator, the lightning arrester and the grounding ring together to form a whole set of line equipment, reduces or even eliminates the possibility of single-phase grounding of the overhead line, simultaneously reduces the workload of line construction and the workload of operation and maintenance, and saves the corridor space of the distribution network line.
Description
Technical Field
The invention relates to the field of lightning arresters, in particular to a 20kV strut type lightning arrester.
Background
In a power transmission line, a lightning arrester is used as an important overvoltage protection device, is arranged on a cross arm of a power transmission tower and is connected with a line insulator in series and parallel, and is used for limiting lightning and operation overvoltage of the power transmission line and improving the running reliability of a system. The overhead lightning arrester is the most commonly used lightning protection product in a distribution network line, and the lightning arrester must be installed in a pole type with equipment and a cable on fire, but a pillar type insulator and a grounding ring are also commonly arranged in a place with the lightning arrester, so that the pole type is more complex, more electrical exposed points are formed, birds are easier to nest on an electric pole, and the probability of instantaneous failure of the overhead line is increased along with the increase of the number of nests; in an area with a poor overhead line channel, when a storm occurs, an instantaneous single-phase earth fault often occurs, and the instantaneous single-phase earth fault is caused by the fact that exposed parts such as a lightning arrester or an earth ring touch a tree obstacle and the like in many cases through inspection.
Disclosure of Invention
The invention mainly aims at the problems and provides the 20kV strut type lightning arrester which is simple to install, combines the insulator, the lightning arrester and the grounding ring together to form a whole set of line equipment, reduces or even eliminates the possibility of single-phase grounding of an overhead line, reduces the workload of line construction and operation and maintenance and saves the corridor space of a distribution network line.
The purpose of the invention is mainly realized by the following scheme: the utility model provides a 20kV pillar type arrester, includes the arrester body, the top of arrester body be provided with linking bridge, the both sides of linking bridge all be provided with termination, two termination are connected with overhead lead and cable respectively, termination including the installation fastener, the installation fastener including pressing from both sides terminal and fixed plate, the fixed plate on be provided with the bolt hole, the fixed plate pass through bolted connection on linking bridge, the terminal one end of keeping away from the fixed plate of pressing from both sides terminal be provided with the plug wire groove that is used for connecting overhead lead or cable, linking bridge on be provided with earthing device, the bottom of arrester body be provided with and be used for fixing the installing support on the cross arm, the bottom of arrester body be connected with ground lead. The top of the arrester body is provided with a connecting bracket, both sides of the connecting bracket are provided with wiring devices, the two wiring devices are respectively connected with an overhead lead and a cable, the wiring devices comprise installation wire clamps, each installation wire clamp comprises a wire clamping column and a fixing plate, the fixing plate is provided with a bolt hole, the fixing plate is connected on the connecting bracket through a bolt, one end of the wire clamping column, which is far away from the fixing plate, is provided with a wire insertion groove for connecting the overhead lead or the cable, when in specific installation, one end of the overhead lead is inserted into the wire insertion groove of one of the installation wire clamps and is pressed, then the fixing plate is fixed on one side of the connecting bracket through the bolt connection, one end of the cable is inserted into the wire insertion groove of the other installation wire clamp and is pressed, then the fixing plate is fixed on the other side of the connecting bracket, be provided with earthing device on the linking bridge, when overhauing the construction, earthing device can be used to test electricity and interim earthing device, and the bottom of arrester body is provided with and is used for fixing the installing support on the cross arm, and the bottom of arrester body is connected with ground lead, and when overhead line suffered the thunderbolt, can insert the ground with the electric current through arrester body and ground lead, prevents to cause the harm to overhead line.
Preferably, the two side walls in the slot are symmetrically provided with elastic clamping blocks, one end of each elastic clamping block, which is far away from the fixing plate, is connected to the side wall of the slot, the other end of each elastic clamping block inclines towards the axis direction of the slot, and the side wall of the slot, which corresponds to the elastic clamping blocks, is provided with a groove. The symmetry is provided with the elasticity fixture block on the inside both sides wall of plug wire groove, the one end that the fixed plate was kept away from to the elasticity fixture block is connected on the plug wire groove lateral wall, the other end of elasticity fixture block inclines towards plug wire groove axis direction, it is provided with the recess to correspond the elasticity fixture block on the lateral wall of plug wire groove, make when the one end of built on stilts lead wire or cable inserts inside the plug wire groove, can be earlier the extrusion of elasticity fixture block toward the recess direction, make built on stilts lead wire or cable fixed when inside the plug wire groove by the crimping, elasticity fixture block on the both sides wall can be to a chucking power of built on stilts lead wire.
Preferably, the grounding device comprises an insulating outer sleeve, a grounding rod is arranged in the insulating outer sleeve in a sliding connection mode, the insulating outer sleeve and the grounding rod are in interference fit, a lifting cavity is arranged in the insulating outer sleeve around the grounding rod, and one end of the grounding rod is arranged on the connecting support. Earthing device is including insulating overcoat, the inside sliding connection of insulating overcoat is provided with the earthed pole, be interference fit between insulating overcoat and the earthed pole, insulating overcoat is inside to be provided with the lift chamber around the earthed pole, the one end setting of earthed pole is on linking bridge, insulating overcoat covers the earthed pole cage under the normal condition, reduce the exposed point of earthed pole, when the maintenance construction needs test the electricity or ground connection, with insulating overcoat toward keeping away from linking bridge direction removal, make the earthed pole expose, then can carry out a series of maintenance operations.
Preferably, one end of the grounding rod, which is far away from the connecting support, is provided with an anti-disengaging ring, the top of the anti-disengaging ring is provided with a ball clamping groove, and the top of the lifting cavity is provided with a ball clamping groove corresponding to the ball clamping groove. The one end that linking bridge was kept away from to the earthed pole is provided with the anticreep ring, the top of anticreep ring is provided with the card ball, the top in lift chamber corresponds the card ball and is provided with card ball groove, the anticreep ring can prevent that insulating overcoat from breaking away from the earthed pole, when not needing the operation earthed pole, with insulating overcoat toward being close to the linking bridge direction removal, until when card ball embedding card ball inslot, insulating overcoat just can cover the earthed pole, reduce the exposed point of earthed pole, simultaneously convenient staff operates.
Preferably, the top of the insulating outer sleeve is provided with an operation hole. The top of insulating overcoat is provided with the operation hole, and the staff removes insulating overcoat convenient and fast more through the operation hole.
Preferably, the ball is made of elastic material. The ball is made of elastic material and is convenient to be inserted into or separated from the ball clamping groove.
Preferably, the connecting bracket is provided with a protective cover. The protective cover is arranged on the connecting support, the protective cover can effectively protect the connecting part on the connecting support, the effect of keeping off rain and sun is achieved, the exposed point of equipment is reduced, and the service life of the device is prolonged.
Therefore, the 20kV strut type lightning arrester has the following advantages: the invention has simple installation, combines the insulator, the lightning arrester and the grounding ring together to form a whole set of line equipment, reduces or even eliminates the possibility of single-phase grounding of an overhead line, simultaneously reduces the workload of line construction and the workload of operation and maintenance, saves the corridor space of a distribution network line, optimizes a rod-shaped device, reduces the bare dew point of the equipment, greatly reduces the probability of bird nesting on a rod, improves the operation reliability of a distribution network, and ensures that the connection of the line is more rapid and stable due to the design of a wiring device.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a structural sectional view of the grounding device of the present invention.
Fig. 3 is a front view showing the structure of the mounting clip of the present invention.
Fig. 4 is a schematic left side view of the structure of the mounting clip of the present invention.
Illustration of the drawings: 1-overhead lead wire, 2-installation wire clamp, 3-protective cover, 4-grounding device, 5-cable, 6-connecting support, 7-lightning arrester body, 8-installation support, 9-grounding lead wire, 10-ball clamping groove, 11-ball clamping, 12-anti-separation ring, 13-operation hole, 14-insulating outer sleeve, 15-lifting cavity, 16-grounding rod, 17-wire clamping column, 18-bolt hole, 19-fixing plate, 20-elastic clamping block, 21-wire inserting groove and 22-groove.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1, 2, 3 and 4, a 20kV pillar type lightning arrester comprises a lightning arrester body 7, a connecting bracket 6 is arranged at the top of the lightning arrester body 7, a protective cover 3 is arranged on the connecting bracket 6, the protective cover 3 can effectively protect a connecting part on the connecting bracket 6, plays a role of keeping off rain and sun, reduces the bare dew point of equipment, prolongs the service life of the device, wiring devices are arranged on both sides of the connecting bracket 6, the two wiring devices are respectively connected with an overhead lead 1 and a cable 5, the wiring devices comprise an installation wire clamp 2, the installation wire clamp 2 comprises a wire clamping column 17 and a fixing plate 19, a bolt hole 18 is arranged on the fixing plate 19, the fixing plate 19 is connected on the connecting bracket 6 through a bolt, a wire inserting groove 21 for connecting the overhead lead 1 or the cable 5 is arranged at one end of the wire clamping column 17 far away from the fixing plate, one end of an overhead lead 1 is inserted into an inserting groove 21 of one of the installation wire clamps 2 and is pressed, then a fixing plate 19 is fixed on one side of a connecting bracket 6 through bolt connection, one end of a cable 5 is inserted into an inserting groove 21 of the other installation wire clamp 2 and is pressed, then the fixing plate is fixed on the other side of the connecting bracket 6 through bolt connection, so that the current on the overhead lead 1 can be transmitted to the cable 5 through the connecting bracket 6, elastic clamping blocks 20 are symmetrically arranged on two side walls inside the inserting groove 21, one end of each elastic clamping block 20, far away from the fixing plate, is connected to the side wall of the inserting groove 21, the other end of each elastic clamping block 20 inclines towards the axial direction of the inserting groove 21, a groove 22 is arranged on the side wall of the inserting groove 21 corresponding to each elastic clamping block 20, so that when one end of the overhead lead 1 or the cable 5 is inserted into the inserting, when the overhead lead 1 or the cable 5 is fixed in the slot 21 by crimping, the elastic clamping blocks 20 on the two side walls can apply a clamping force to the overhead lead 1 or the cable 5, so that the overhead lead 1 or the cable 5 is not easy to separate from the slot 21, the connecting bracket 6 is provided with the grounding device 4, when in maintenance construction, the grounding device 4 can be used for electricity testing and temporary grounding device 4, the grounding device 4 comprises an insulating outer sleeve 14, a grounding rod 16 is arranged in the insulating outer sleeve 14 in a sliding connection manner, the insulating outer sleeve 14 is in interference fit with the grounding rod 16, a lifting cavity 15 is arranged in the insulating outer sleeve 14 around the grounding rod 16, one end of the grounding rod 16 is arranged on the connecting bracket 6, the top of the insulating outer sleeve 14 is provided with an operation hole 13, a worker can move the insulating outer sleeve 14 through the operation hole 13 more conveniently and quickly, the insulating outer sleeve 14 covers the grounding rod 16 under a normal, the exposed points of the grounding rod 16 are reduced, when the maintenance construction needs to test electricity or ground, the insulating outer sleeve 14 is moved away from the connecting support 6 to expose the grounding rod 16, then a series of maintenance operations can be carried out, one end of the grounding rod 16 away from the connecting support 6 is provided with the anti-separation ring 12, the top of the anti-separation ring 12 is provided with the clamping ball 11, the top of the lifting cavity 15 is provided with the clamping ball groove 10 corresponding to the clamping ball 11, the anti-separation ring 12 can prevent the insulating outer sleeve 14 from separating from the grounding rod 16, when the grounding rod 16 does not need to be operated, the insulating outer sleeve 14 is moved close to the connecting support 6 until the clamping ball 11 is embedded into the clamping ball groove 10, the insulating outer sleeve 14 just can cover the grounding rod 16, the exposed points of the grounding rod 16 are reduced, meanwhile, a convenient worker can operate, the clamping ball 11 is made of an elastic material and is convenient to be embedded into or separated from the, the bottom of arrester body 7 is provided with and is used for fixing the installing support 8 on the cross arm, and the bottom of arrester body 7 is connected with ground lead 9, when the overhead line suffered the thunderbolt, can insert the ground with the electric current through arrester body 7 and ground lead 9, prevents to cause the harm to the overhead line.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. A20 kV pillar type lightning arrester is characterized by comprising a lightning arrester body, wherein a connecting support is arranged at the top of the lightning arrester body, wiring devices are arranged on two sides of the connecting support, the two wiring devices are respectively connected with an overhead lead and a cable, each wiring device comprises an installation wire clamp, each installation wire clamp comprises a wire clamping column and a fixed plate, bolt holes are formed in the fixed plates, the fixed plates are connected to the connecting support through bolts, one end, away from the fixed plates, of each wire clamping column is provided with a wire inserting groove used for connecting the overhead lead or the cable, a grounding device is arranged on the connecting support, the bottom of the lightning arrester body is provided with an installation support fixed on a cross arm, and the bottom of the lightning arrester body is connected with a grounding lead; the grounding device comprises an insulating outer sleeve, a grounding rod is arranged in the insulating outer sleeve in a sliding connection mode, the insulating outer sleeve and the grounding rod are in interference fit, a lifting cavity is arranged in the insulating outer sleeve around the grounding rod, and one end of the grounding rod is arranged on the connecting support; an anti-disengaging ring is arranged at one end, away from the connecting support, of the grounding rod, a ball clamping is arranged at the top of the anti-disengaging ring, and a ball clamping groove is formed in the top of the lifting cavity and corresponds to the ball clamping; the anti-disengaging ring can prevent the insulating coat from disengaging from the grounding rod, when the grounding rod does not need to be operated, the insulating coat is moved towards the direction close to the connecting support, and until the clamping ball is embedded into the clamping ball groove, the insulating coat just can cover the grounding rod.
2. The 20kV post type arrester as claimed in claim 1, wherein the two side walls inside the slot are symmetrically provided with elastic clamping blocks, one end of each elastic clamping block, which is far away from the fixing plate, is connected to the side wall of the slot, the other end of each elastic clamping block inclines towards the axis direction of the slot, and the side wall of the slot is provided with a groove corresponding to the elastic clamping block.
3. A 20kV post-type arrester according to claim 1, wherein the top of the insulating sheath is provided with an operation hole.
4. A 20kV post-type arrester according to claim 1, wherein the seizing ball is made of an elastic material.
5. A 20kV post arrester according to claim 1 or 2, characterized in that the connection bracket is provided with a protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846164.4A CN109473245B (en) | 2018-07-27 | 2018-07-27 | 20kV pillar type arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846164.4A CN109473245B (en) | 2018-07-27 | 2018-07-27 | 20kV pillar type arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109473245A CN109473245A (en) | 2019-03-15 |
| CN109473245B true CN109473245B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810846164.4A Active CN109473245B (en) | 2018-07-27 | 2018-07-27 | 20kV pillar type arrester |
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| Country | Link |
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| CN (1) | CN109473245B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957196A (en) * | 2019-12-26 | 2020-04-03 | 辽宁华隆电力科技股份有限公司 | Pressure-driven opening and closing wire clamp |
| CN113012872B (en) * | 2021-02-24 | 2022-05-17 | 芜湖市凯鑫避雷器有限责任公司 | Lightning arrester installation conductive connection assembly |
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| CN205206611U (en) * | 2015-12-07 | 2016-05-04 | 苏州市利德装饰装潢有限公司 | Compound thermal -insulated splice plate of aluminum -wood door |
| CN205221801U (en) * | 2015-12-01 | 2016-05-11 | 安徽省界首市云龙粮机配套工程有限公司 | Play grain machine conveyer belt front end hopper bearing structure |
| CN107611734A (en) * | 2017-09-15 | 2018-01-19 | 秉岳电气(上海)有限公司 | A kind of connector |
| CN207165335U (en) * | 2017-07-20 | 2018-03-30 | 保定通力电器设备有限公司 | Energy-conservation becomes platform pillar arrester |
| CN207405752U (en) * | 2017-05-07 | 2018-05-25 | 黄河科技学院 | A kind of device for preventing sewage backflow |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359894Y (en) * | 2009-02-27 | 2009-12-09 | 上海兆邦电力器材有限公司 | Column-type lightning arrester device provided with electricity testing earthed pole and piercing connector |
| EP2698795B1 (en) * | 2012-08-16 | 2020-03-11 | Siemens Aktiengesellschaft | Surge arrester |
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2018
- 2018-07-27 CN CN201810846164.4A patent/CN109473245B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962511Y (en) * | 2006-09-29 | 2007-10-17 | 慈溪市台联电器成套厂 | Connection peduncle of arrester transition supporter |
| CN201975190U (en) * | 2011-04-07 | 2011-09-14 | 合肥固力发电气有限公司 | Bridge connection type shifting multi-function arrester |
| CN205221801U (en) * | 2015-12-01 | 2016-05-11 | 安徽省界首市云龙粮机配套工程有限公司 | Play grain machine conveyer belt front end hopper bearing structure |
| CN205206611U (en) * | 2015-12-07 | 2016-05-04 | 苏州市利德装饰装潢有限公司 | Compound thermal -insulated splice plate of aluminum -wood door |
| CN207405752U (en) * | 2017-05-07 | 2018-05-25 | 黄河科技学院 | A kind of device for preventing sewage backflow |
| CN207165335U (en) * | 2017-07-20 | 2018-03-30 | 保定通力电器设备有限公司 | Energy-conservation becomes platform pillar arrester |
| CN107611734A (en) * | 2017-09-15 | 2018-01-19 | 秉岳电气(上海)有限公司 | A kind of connector |
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| CN109473245A (en) | 2019-03-15 |
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