CN114023516A - Live-line dismounting lightning arrester capable of replacing insulator - Google Patents
Live-line dismounting lightning arrester capable of replacing insulator Download PDFInfo
- Publication number
- CN114023516A CN114023516A CN202111327355.8A CN202111327355A CN114023516A CN 114023516 A CN114023516 A CN 114023516A CN 202111327355 A CN202111327355 A CN 202111327355A CN 114023516 A CN114023516 A CN 114023516A
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- lightning arrester
- lightning
- insulating
- arrester
- discharge plate
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- 239000012212 insulator Substances 0.000 title claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 208000025274 Lightning injury Diseases 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01B17/14—Supporting insulators
-
- 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
- H01B17/14—Supporting insulators
- H01B17/145—Insulators, poles, handles, or the like in electric fences
-
- 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
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention relates to the technical field of lightning arresters, and discloses a live-line dismounting lightning arrester capable of replacing an insulator, which comprises an insulating pillar component and a lightning arrester component, wherein: the insulating pillar assembly comprises an insulating pillar body, a discharge plate, a connecting rod and a connecting hardware fitting, wherein the discharge plate is fixedly connected to a cross arm for placing the lightning arrester; the lightning arrester assembly comprises a lightning arrester body and a ball electrode, wherein the ball electrode is fixedly connected below the lightning arrester body and forms an air gap with a fixed distance with a discharge plate in the insulating strut assembly, and a temperature-sensitive color-changing coating is coated on the ball electrode; the connecting cylinder is fixedly connected to the top end of the lightning arrester body, and the connecting cylinder is matched with the connecting rod through insertion. The lightning protection device can meet the lightning protection requirement of the overhead distribution line, and has the advantages of stable protection performance, convenience in daily operation and maintenance and the like.
Description
Technical Field
The invention relates to a lightning arrester capable of replacing an insulator and being disassembled and assembled in a live-line manner, and belongs to the technical field of lightning arresters.
Background
Distribution and transmission systems in China need a large number of insulators to hang and support line conductors, and the lightning resistance level of the insulators is limited. For a circuit using a bare conductor, lightning stroke easily causes insulator flashover, subsequent power frequency continuous flow can cause circuit tripping, although the problem of circuit disconnection cannot be caused, the insulator is easily damaged, and the tripping rate of the circuit is increased; the lightning protection measures adopted at present mainly comprise a 'sparse-conducting' measure and a 'blocking' measure, wherein the 'sparse-conducting' measure is that a special hardware fitting is installed, and a power frequency arc root is transferred to the special hardware fitting for burning, so that the wire is protected from burning loss, and the 'blocking' measure is that a lightning conductor is erected, a line arrester is installed, the tower ground resistance is reduced, and the like, so that the power frequency arc continuation after lightning stroke flashover is prevented, and the factor of the wire burning loss is fundamentally eliminated. The current lightning protection measures have the following problems no matter aiming at bare wires or insulated wires:
the arrester needs to be installed on the insulator in parallel, and the arrester and the insulator are of split structures, need to purchase respectively and install loaded down with trivial details, and is higher to installer's requirement, and purchase expense and maintenance cost are also higher.
The protection gap can only play a role in preventing the wire from being burnt, can not prevent the tripping of a line, needs to adjust the distance of the installation gap, and has higher requirements on installation personnel.
The lightning conductor can only have an effect on direct lightning, can not prevent the discharge of induced lightning stroke, but cause the discharge of line lightning stroke to be induced thunder mostly, erect the lightning conductor and can not solve the problem of insulator lightning stroke flashover.
The existing porcelain insulator is too heavy, is easy to crack and has poor pollution resistance, and the composite outer sleeve can solve the problems.
In the distribution lines technical field, the arrester is the important device of taking precautions against the thunder and lightning overvoltage all the time, to reducing the tripping operation of distribution lines, protection wire equipment avoids the thunder and lightning overvoltage to damage and has the important function, does not bear the overvoltage when the clearance arrester of protection circuit normally operates, has the characteristics such as dependable performance, the appearance is small and exquisite, light in weight, the installation is nimble. However, the gap arresters currently used in the market have the following problems: firstly, the clearance is easily influenced by factors such as wind vibration, thermal expansion and contraction of the lead, quality of constructors and the like, and the clearance is easily deviated to influence the lightning protection effect; secondly, the normal operation of the line cannot be influenced after the line arrester fails, so that the operator cannot know whether the arrester can be used continuously under the condition that no pole climbing inspection is carried out after the line is powered on; thirdly, the lightning arrester needs to be arranged for power failure replacement for many times after being frequently damaged, and the power supply reliability of the power system is greatly reduced.
Therefore, it is necessary to design a lightning arrester with a fixed air gap, which can realize fault indication and live replacement and can replace insulators in live disassembly and assembly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the lightning arrester capable of replacing an insulator in an electrified dismounting manner.
The invention relates to a live-line dismounting lightning arrester capable of replacing an insulator, which comprises an insulating post assembly and a lightning arrester assembly, wherein:
the insulating pillar assembly comprises an insulating pillar body, a discharge plate, a connecting rod and a connecting hardware fitting, wherein the discharge plate is fixedly connected to a cross arm for placing the lightning arrester;
the lightning arrester assembly comprises a lightning arrester body and a ball electrode, wherein the ball electrode is fixedly connected below the lightning arrester body and forms an air gap with a fixed distance with a discharge plate in the insulating strut assembly, and a temperature-sensitive color-changing coating is coated on the ball electrode;
the top end of the lightning arrester body is fixedly connected with a connecting cylinder, and the connecting cylinder is inserted into the connecting rod.
Preferably, an insulating positioning cover is sleeved on the outer side of the connecting rod.
Preferably, the insulating positioning cover is a plastic positioning cover.
Preferably, one end of the discharge plate, which is far away from the insulating support body, extends downwards to form a rectangular surface, and the discharge plate is integrally in an L shape with the tail part bent downwards.
Preferably, the hardware connecting tool is provided with a special-shaped hole for fixing the connecting rod.
Preferably, the inner wall of the special-shaped hole is provided with an anti-rotation groove.
Preferably, the arrester body contains a zinc oxide material therein.
The lightning arrester capable of replacing the insulator and being disassembled and assembled in an electrified way has the following beneficial effects:
(1) the air gap distance is fixed, the installation is simple, and the bad protection effect caused by inaccurate adjustment of the air gap distance in the installation time can be avoided;
(2) the temperature-sensing color-changing coating is coated on the ball head electrode, so that inspection personnel can quickly find the damaged lightning arrester, and the operation and maintenance efficiency is improved;
(3) power failure is not needed when the lightning arrester is replaced, so that the operation reliability of a power grid is improved;
(4) the lightning arrester body can pass a whole 65kA high-current test and has excellent through-current performance;
(5) the insulating support column meets the bending resistance of 8kN and can directly replace a line insulator;
(6) good economical efficiency, convenient installation, high reliability and strong universality.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the installation of the present invention.
Fig. 3 is a schematic structural view of the discharge plate.
Fig. 4(a) is a cross-sectional view of the connection between the insulating support body and the link fitting.
Fig. 4(b) is a sectional view of the link fitting being connected to the link rod.
In the figure: 1. a ball electrode; 2. a lightning arrester body; 3. a connecting cylinder; 4. a hexagonal screw; 5. a connecting rod; 6. an insulating positioning cover; 7. an insulating pillar body; 8. a discharge plate; 9. an air gap; 10. a cross arm; 11. a high voltage insulated wire; 12. connecting a hardware fitting; 13. a special-shaped hole.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example (b):
as shown in fig. 1 to 4, the live dismounting lightning arrester capable of replacing the insulator according to the present invention comprises an insulating post assembly and a lightning arrester assembly, wherein:
the insulating pillar assembly comprises an insulating pillar body 7, a discharge plate 8, a connecting rod 5 and a connecting hardware fitting 12, wherein the discharge plate 8 is fixedly connected to a cross arm 10 for placing a lightning arrester, an insulating pillar is fixedly installed above the discharge plate 8, the insulating pillar body 7 adopts a high-strength epoxy resin core rod, the connecting hardware fitting 12 is arranged above the insulating pillar body 7, the upper part of the connecting hardware fitting 12 is connected with a high-voltage insulating wire 11, the connecting hardware fitting 12 adopts a special hardware fitting used by a line insulator, and the connecting rod 5 is fixedly connected to one side of the connecting hardware fitting 12; the insulating support column assembly can be directly used for replacing a line insulator during installation, an 8kN bending resistance and torsion resistance test can be met, and the insulating support column can be replaced once and the lightning arrester can be replaced for multiple times by fastening a screw at the lower end of the insulating support column on the cross arm 10 through a nut; the discharge plate 8 adopts an L-shaped structure, one end of the discharge plate, which is far away from the insulating support body 7, is bent downwards to form a rectangular surface, and an included angle of 90 degrees is formed between the rectangular surface and the horizontal plane of the discharge plate 8, and the horizontal plane of the discharge plate 8 is fixed below the insulating support through bolts, nuts, spring washers and flat washers; the connecting hardware 12 is directly contacted with the lead and is tightly bound by a binding tape, and the connecting rod 5 is tightly pressed by a hexagon bolt to be vertical to the insulating pillar body 7.
In addition, the L-shaped discharge plate 8 is made of stainless steel or hot galvanizing materials, so that the corrosion prevention problem of common metal materials can be effectively solved, and the corrosion prevention and ablation resistance of the electrode are improved.
The lightning arrester assembly comprises a lightning arrester body 2 and a ball electrode 1, wherein the ball electrode 1 is fixedly connected below the lightning arrester body 2 and forms an air gap 9 with a fixed distance with a discharge plate 8 in an insulating strut assembly, so that lightning strike discharge is ensured to occur between the gap of the hole digger; the lightning arrester body 2 adopts a known metal oxide lightning arrester structure, and then zinc oxide element materials are added, so that the requirement that the whole lightning arrester passes a 65kA high-current test can be met; the lower end of the lightning arrester body 2 is connected with a ball electrode 1 through a screw, the ball electrode 1 is coated with temperature-sensitive color-changing paint, an insulating pillar is not required to be replaced when the lightning arrester is replaced, only the connection between the insulating pillar and the lightning arrester needs to be removed, the lightning arrester assembly can be detached and installed independently in an electrified manner, and the lightning arrester assembly is convenient and fast to use.
2 top fixedly connected with connecting cylinder 3 of arrester body, peg graft between connecting cylinder 3 and the connective bar 5 to it is fixed to use hexagonal screw 4 to compress tightly.
The outer side of the connecting rod 5 is sleeved with an insulating positioning cover 6. The insulating positioning cover 6 is a plastic positioning cover. The plastic positioning cover is of an independent design structure and is fixed with the connecting cylinder 3 fixed at the top end of the lightning arrester body 2, so that the plastic positioning cover can play a role in guiding when the lightning arrester is assembled and disassembled by using the live operating rod in a live manner, the connecting cylinder 3 and the connecting rod 5 are inserted and matched more smoothly, and the error that the manual operation cannot be aligned is greatly reduced; after the lightning arrester body 2 is completely matched with the insulating support column, the plastic positioning cover can play a role in shielding protection.
The connecting hardware 12 is provided with a special-shaped hole 13 for fixing the connecting rod 5. The inner wall of the special-shaped hole 13 is provided with an anti-rotation groove. The connecting rod 5 can well cooperate with the dysmorphism trompil with connecting fitting 12 complex one end to 12 trompils opposite sides of connecting fitting can be with screw rod fixed connection stick 5 after inserting, can guarantee that connecting rod 5 stably inserts and prevent changeing, are the important reason that realizes the air discharge clearance and fix.
The two ends of the insulating support body 7 are fixedly held tightly by the connecting rod 5, the high-voltage insulating wire 11 and the discharge plate 8 which are connected from the electrified installation wire clamp through the bolts, the nuts, the spring washers and the flat washers, and the connection of the insulating support body 7 and the power supply system on the high-voltage side ensures that the lightning arrester body 2 has good conductive current-carrying property through the connecting cylinder 3 at the upper end and the insulating support body 7 connected through the connecting rod 5.
The use process of the invention is as follows: according to the electrified detachable lightning arrester capable of replacing the insulator, when a system normally operates, the air gap 9 isolates the system voltage, the lightning arrester body 2 bears lower voltage, the aging problem under long-term operation voltage is not considered, the reliability is greatly improved, and the maintenance cost is reduced; when the power line is struck by lightning, under the action of lightning overvoltage, the air gap 9 between the discharge plate 8 and the ball head electrode 1 is broken down, the lightning arrester body 2 presents low impedance, and the lightning flows through the lightning arrester body 2, the air gap 9, the discharge plate 8, the cross arm 10 and a tower and is discharged into the ground. After the lightning impulse, power frequency voltage loads on the arrester, and the resistance of arrester body 2 grow in the twinkling of an eye, and the electric current that passes through is arc current and is suppressed at lower numerical value, and air gap 9 arc voltage drop increases, and air gap 9's insulation resumes rapidly, and electric arc extinguishes naturally in the very short time, and the power frequency afterflow is interrupted completely, resumes normal operating mode.
After the invention is operated by hanging a net, operation maintenance personnel can judge whether the lightning arrester has a fault according to the carbonization degree and the color indication of the paint on the surface of the outer side of the ball electrode 1 contacting the air. After finding that the arrester breaks down, can change with electricity. When the lightning arrester is replaced, the lightning arrester body 2 can be partially taken down by loosening the hexagonal screw rod 4 through the hot-line operating rod. And then lifting a new lightning arrester body 2 by using a live operating rod, sleeving a connecting cylinder 3 at the upper end of the lightning arrester on a connecting rod 5, and enabling the lightning arrester to vertically face downwards by means of the gravity of the lightning arrester. And then, the connecting cylinder 3 is pushed to the bottom, and the hexagonal screw 4 is rotated to be screwed down, so that the installation is completed.
The invention has the beneficial effects that: the lightning arrester capable of replacing the insulator and being assembled and disassembled in an electrified way optimizes the traditional fixed gap lightning arrester, improves the installation structure of two electrodes of the lightning arrester, can be quickly installed under the electrified condition, has a reliable structure and fixed gaps, and provides a novel fault indication method suitable for the fixed gap lightning arrester on the basis of the traditional methods such as a thermal explosion type method and a colored ribbon type method for the gapless lightning arrester, well protects the insulation and support insulator of an overhead conductor, improves the lightning protection level of a distribution line and reduces the lightning stroke fault rate.
The invention can be widely applied to lightning arresters.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
It is noted that, herein, relational terms such as first and second, 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a hot-line dismouting arrester of fungible insulator which characterized in that, includes insulating pillar subassembly and arrester subassembly, wherein:
the insulating support column assembly comprises an insulating support column body (7), a discharge plate (8), a connecting rod (5) and a connecting hardware fitting (12), wherein the discharge plate (8) is fixedly connected to a cross arm (10) for placing the lightning arrester, the insulating support column is fixedly arranged above the discharge plate (8), the connecting hardware fitting (12) is arranged above the insulating support column, and the connecting rod (5) is fixedly connected to one side of the connecting hardware fitting (12);
the lightning arrester assembly comprises a lightning arrester body (2) and a ball head electrode (1), wherein the ball head electrode (1) is fixedly connected below the lightning arrester body (2) and forms an air gap (9) with a fixed distance with a discharge plate (8) in an insulating strut assembly, and a temperature-sensitive color-changing coating is coated on the ball head electrode (1);
the top end of the lightning arrester body (2) is fixedly connected with a connecting cylinder (3), and the connecting cylinder (3) is inserted into the connecting rod (5).
2. The live dismounting lightning arrester as claimed in claim 1, wherein the connecting rod (5) is sleeved with an insulating positioning cover (6).
3. The live dismounting lightning arrester as claimed in claim 2, characterized in that the insulating positioning cover (6) is a plastic positioning cover.
4. The live dismounting lightning arrester as claimed in claim 1, wherein one end of the discharging plate (8) far away from the insulating support body (7) extends downwards to form a rectangular surface, and the discharging plate (8) is integrally in an L shape with the tail part bent downwards.
5. The lightning arrester with the function of replacing the insulator according to claim 1 is characterized in that the connecting hardware (12) is provided with a special-shaped hole (13) for fixing the connecting rod (5).
6. The lightning arrester with the function of replacing the insulator according to claim 5 is characterized in that the inner wall of the special-shaped hole (13) is provided with an anti-rotation groove.
7. The live dismounting arrester according to claim 1, characterized in that said arrester body (2) contains zinc oxide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327355.8A CN114023516B (en) | 2021-11-10 | 2021-11-10 | Live dismounting lightning arrester capable of replacing insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327355.8A CN114023516B (en) | 2021-11-10 | 2021-11-10 | Live dismounting lightning arrester capable of replacing insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114023516A true CN114023516A (en) | 2022-02-08 |
| CN114023516B CN114023516B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111327355.8A Active CN114023516B (en) | 2021-11-10 | 2021-11-10 | Live dismounting lightning arrester capable of replacing insulator |
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| Country | Link |
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| CN (1) | CN114023516B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176235A (en) * | 1993-12-21 | 1995-07-14 | Toshiba Corp | Lightning arrester for transmission line |
| CN104157532A (en) * | 2014-07-30 | 2014-11-19 | 江苏省电力公司洪泽县供电公司 | Bracket for single-column and all-insulated line connector |
| CN204680493U (en) * | 2015-06-26 | 2015-09-30 | 国家电网公司 | Insulator lightning protection system |
| CN105375131A (en) * | 2014-12-02 | 2016-03-02 | 国家电网公司 | Grounding hanging ring device in 10kilovolt zone area |
| KR101598881B1 (en) * | 2015-11-13 | 2016-03-14 | 구주기술 주식회사 | Discharge electrode for airgap arrestor and installing method therefor |
| CN205385198U (en) * | 2015-12-24 | 2016-07-13 | 国网江西井冈山市供电有限责任公司 | 10kV circuit connection in series -parallel integral type clearance thunderbolt protector |
| CN211556823U (en) * | 2020-04-20 | 2020-09-22 | 泉州七星电气有限公司 | AC lightning arrester with discharge gap |
| CN212647974U (en) * | 2020-06-08 | 2021-03-02 | 江苏省送变电有限公司 | Anti-rotation clamp for ground wire insulator discharge gap rod |
| CN112750584A (en) * | 2020-11-24 | 2021-05-04 | 国网福建省电力有限公司电力科学研究院 | Fault indication and live-line disassembly and assembly method applied to fixed-gap lightning arrester |
| CN113507089A (en) * | 2021-04-28 | 2021-10-15 | 国网福建省电力有限公司 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
-
2021
- 2021-11-10 CN CN202111327355.8A patent/CN114023516B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176235A (en) * | 1993-12-21 | 1995-07-14 | Toshiba Corp | Lightning arrester for transmission line |
| CN104157532A (en) * | 2014-07-30 | 2014-11-19 | 江苏省电力公司洪泽县供电公司 | Bracket for single-column and all-insulated line connector |
| CN105375131A (en) * | 2014-12-02 | 2016-03-02 | 国家电网公司 | Grounding hanging ring device in 10kilovolt zone area |
| CN204680493U (en) * | 2015-06-26 | 2015-09-30 | 国家电网公司 | Insulator lightning protection system |
| KR101598881B1 (en) * | 2015-11-13 | 2016-03-14 | 구주기술 주식회사 | Discharge electrode for airgap arrestor and installing method therefor |
| CN205385198U (en) * | 2015-12-24 | 2016-07-13 | 国网江西井冈山市供电有限责任公司 | 10kV circuit connection in series -parallel integral type clearance thunderbolt protector |
| CN211556823U (en) * | 2020-04-20 | 2020-09-22 | 泉州七星电气有限公司 | AC lightning arrester with discharge gap |
| CN212647974U (en) * | 2020-06-08 | 2021-03-02 | 江苏省送变电有限公司 | Anti-rotation clamp for ground wire insulator discharge gap rod |
| CN112750584A (en) * | 2020-11-24 | 2021-05-04 | 国网福建省电力有限公司电力科学研究院 | Fault indication and live-line disassembly and assembly method applied to fixed-gap lightning arrester |
| CN113507089A (en) * | 2021-04-28 | 2021-10-15 | 国网福建省电力有限公司 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
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| Publication number | Publication date |
|---|---|
| CN114023516B (en) | 2023-11-03 |
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