CN218730161U - One-way composite post insulator is prevented in lightning protection for transmission line - Google Patents
One-way composite post insulator is prevented in lightning protection for transmission line Download PDFInfo
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- CN218730161U CN218730161U CN202222843891.XU CN202222843891U CN218730161U CN 218730161 U CN218730161 U CN 218730161U CN 202222843891 U CN202222843891 U CN 202222843891U CN 218730161 U CN218730161 U CN 218730161U
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- 239000012212 insulator Substances 0.000 title claims abstract description 130
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 244000273256 Phragmites communis Species 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
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Abstract
A lightning protection and protection unidirectional composite post insulator for a transmission line comprises a conductive mounting bracket, a main insulator body and an auxiliary insulator body, wherein the main insulator body and the auxiliary insulator body are arranged on the conductive mounting bracket; a switching mechanism is arranged between the main insulator body and the auxiliary insulator body, the switching mechanism comprises a guide cylinder arranged on the conductive mounting bracket, a sliding rod is arranged in the guide cylinder in a sliding manner, and a first sleeve, a second sleeve and a third sleeve are arranged on the sliding rod; the first sleeve is positioned right above the leading-out rod on the hardware fitting on the auxiliary insulator body; the second sleeve is in inserting fit with an extraction rod arranged on an upper hardware fitting of the main insulator body, and the third sleeve is in inserting fit with an extraction rod arranged on a lower hardware fitting of the main insulator body; the lower edge of the conductive mounting bracket is provided with a driving component connected with the sliding rod. The utility model discloses simple structure has reduced manufacturing cost, still is favorable to the popularization.
Description
Technical Field
The utility model relates to a transmission line technical field, specific one-way composite post type insulator is prevented to lightning protection for transmission line that says so.
Background
The composite column insulator generally comprises an inner gap group, an upper hardware fitting, a lower hardware fitting, a nonlinear resistance card and the like, wherein the upper hardware fitting is connected with a power transmission line, and the lower hardware fitting is fixed on a conductive mounting bracket and is grounded through the conductive mounting bracket or a grounding wire. And during lightning stroke, the inner gap group is broken down to form an ionization channel, the equivalent resistance of the nonlinear resistor disc is reduced, and current is introduced into the earth through the inside of the insulator to drain. After the thunder and lightning, the power frequency current flows down along the ionization channel, but at the moment, the equivalent resistance of the nonlinear resistance chip is instantly increased, the power frequency current is blocked, then the ionization channel is closed, and the insulator is recovered. If the lightning current is too large, the insulator body is overloaded and damaged. After lightning strike, the nonlinear resistance chip can not cut off power frequency current, and the power frequency current is introduced into the ground through the insulator, so that a continuous single-phase earth fault is caused.
In order to solve the problem, patent CN202011146977.6 discloses a lightning-protection explosion-proof single-phase grounding composite column insulator, including insulator body and spare insulator, the trouble breaks away from the subassembly and includes movable plate and fixed plate, the expansion end of movable plate can be dismantled with fixed plate and be connected, be equipped with the trigger part on the fixed plate, the trigger part includes the magnetic ring, be equipped with current-conducting tube and detonating tube in the magnetic ring, trouble coupling assembling includes metal sleeve and metal conducting rod, still be connected with the insulating tube on the insulator body, the one end of insulating tube is connected on the spread groove that corresponds spare insulator, with form the insulating connecting channel who supplies the metal conducting rod to remove between spread groove and insulating tube inner wall.
However, the structure of the patent is complex, the production and manufacturing cost is high, and the popularization and the use are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a one-way composite post formula insulator is prevented to lightning protection for transmission line, simple structure has reduced manufacturing cost, still is favorable to the popularization.
In order to solve the technical problem, the utility model discloses a concrete scheme be a one-way composite post type insulator is prevented in lightning protection for transmission line: the current switching mechanism is used for switching current from the main insulator body to the auxiliary insulator body; the switching mechanism comprises a guide cylinder arranged on the conductive mounting bracket, a sliding rod is arranged in the guide cylinder in a sliding manner, and the sliding rod and the guide cylinder are coaxially arranged;
the sliding rod is sequentially provided with a first sleeve, a second sleeve and a third sleeve which are vertically distributed in a staggered manner from top to bottom; the first sleeve is positioned right above the hardware fitting on the auxiliary insulator body, and the hardware fitting on the auxiliary insulator body is provided with leading-out rods which are vertically distributed; the second sleeve is in inserting fit with an extraction rod arranged on an upper hardware fitting of the main insulator body, and the third sleeve is in inserting fit with an extraction rod arranged on a lower hardware fitting of the main insulator body;
the lower edge of the conductive mounting bracket is provided with a driving assembly connected with the sliding rod, and the driving assembly is used for driving the sliding rod to drive the first sleeve, the second sleeve and the third sleeve to move so that the first sleeve is in plug-in fit with the lead-out rod on the auxiliary insulator body, the third sleeve slides out of the lead-out rod on the hardware fitting below the main insulator body, and the lead-out rod is positioned under the main insulator body.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: three connecting rods are arranged on the sliding rod in an interlaced mode, one end of each connecting rod is fixed to the sliding rod, and the other end of each connecting rod is connected with the first sleeve, the second sleeve and the third sleeve on the corresponding side.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: the side wall of the guide cylinder is provided with sliding chutes which are vertically distributed and used for the corresponding side connecting rods to slide in a staggered manner.
As the utility model relates to a transmission line is with further optimization of one-way composite column type insulator of lightning protection: a current sensor for detecting current in the grounding wire and a controller for controlling the driving assembly to be opened and closed are arranged between the driving assembly and the grounding wire, and the current sensor is in electric signal connection with the controller.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: the drive assembly is provided with an insulating ring at the position of penetrating through the conductive mounting bracket.
As the utility model relates to a transmission line is with further optimization of one-way composite column type insulator of lightning protection: an insulating mounting seat is arranged between the main insulator body and the conductive mounting bracket.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: the driving assembly is an electric push rod, and a telescopic rod of the electric push rod penetrates through the conductive mounting bracket to be connected with the sliding rod.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: an insulating connecting piece is arranged between one end of the telescopic rod of the electric push rod, which penetrates through the conductive mounting bracket, and the sliding rod.
As the utility model relates to a further optimization of one-way composite post type insulator is prevented in lightning protection for transmission line: two elastic reeds distributed towards opposite directions are arranged in the first sleeve, the second sleeve and the third sleeve.
Advantageous effects
The utility model discloses the cooperation of pegging graft of drawing forth pole on second sleeve and the main insulating group body on the gold utensil of switching mechanism, the cooperation of pegging graft of lower gold utensil on third sleeve and the main insulator body for main insulator body is in operating condition. And the first sleeve is positioned right above the hardware fitting on the auxiliary insulator body, so that the auxiliary insulator body can not be started in the normal use state of the main insulator body. And when the lightning stroke causes the main insulator body to be damaged, the sliding rod can be driven by the driving machine to move downwards, and the downwards-moving sliding rod drives the third sleeve to be separated from the leading-out rod on the hardware fitting below the main insulator body, so that the main insulator body is isolated. And the slide bar that moves down drives first sleeve and vice insulator body grafting cooperation to the power frequency current that will flow into electrically conductive installing support by main insulator body introduces vice insulator body, has not only avoided one-way ground fault's emergence, overall structure is simpler moreover, low in manufacturing cost, is favorable to using widely.
Preferably, the arrangement of the elastic spring piece can increase the contact effect of the first sleeve, the second sleeve and the third sleeve with the corresponding side leading-out rod respectively.
Drawings
Fig. 1 is a schematic view of the structure of the middle insulator in the initial state of the present invention;
fig. 2 is the utility model discloses well main insulator body damages the back and launches the main structure sketch map of looking of vice insulator body:
fig. 3 is a schematic sectional view of the switching mechanism.
Fig. 4 is a schematic cross-sectional structural view of the first sleeve, the second sleeve or the third sleeve.
Reference numerals: 1. the conductive mounting bracket comprises a conductive mounting bracket body, 2, an insulating mounting seat, 3, a lower metal fitting, 4, a main insulator body, 5, an upper metal fitting, 6, a leading-out rod, 7, a second sleeve, 8, a connecting rod, 9, a guide cylinder, 10, a first sleeve, 11, an auxiliary insulator body, 12, an insulating ring, 13, a driving assembly, 14, a current sensor, 15, a grounding wire, 16, a third sleeve, 17, a sliding groove, 18, a sliding rod, 19, an insulating connecting piece, 20 and an elastic reed.
Detailed Description
As shown in fig. 1, the utility model discloses a one-way composite post insulator is prevented in lightning protection for transmission line, including electrically conductive installing support 1, the main insulator body 4, the vice insulator body 11 and the switching mechanism of setting on electrically conductive installing support 1 of connecting earth connection 15.
The upper ends of the main insulator body 4 and the auxiliary insulator body 11 are embedded with an upper hardware fitting 5, the lower ends of the main insulator body 4 and the auxiliary insulator body 11 are embedded with a lower hardware fitting 3, and the main insulator body 4 and the auxiliary insulator body 11 are both internally provided with nonlinear resistance discs. The periphery of the lower hardware fitting 3 on the main insulator body 4 is provided with an insulating mounting seat 2, and the insulating mounting seat 2 is used for fixing the main insulator body 4 on the conductive mounting support 1. The upper end of the insulating mounting seat 2 is fixedly connected with the main insulator body 4, and the lower end of the insulating mounting seat 2 is fixed on the conductive mounting bracket 1. The upper fitting 5 and the lower fitting 3 on the main insulator body 4 are respectively provided with leading-out rods 6 which are vertically distributed and matched with the switching mechanism. The auxiliary insulator body 11 is located on the right side of the main insulator body 4, the lower hardware fitting 3 on the auxiliary insulator body 11 is fixed on the conductive mounting support 1, and the upper hardware fitting 5 on the auxiliary insulator body 11 is provided with the leading-out rods 6 which are vertically distributed and matched with the switching mechanism.
As shown in fig. 1 and 3, the switching mechanism is used to introduce the main-frequency current from the main insulator body 4 to the sub-insulator body 11 and to the ground through the ground line 15. The switching mechanism comprises a guide cylinder 9 and a sliding rod 18 arranged in the guide cylinder 9 in a sliding mode, and the guide cylinder 9 is fixed on the conductive mounting bracket 1 located between the main insulator body 4 and the auxiliary insulator body 11 in the vertical direction. The sliding rod 18 and the guide cylinder 9 are coaxially arranged, the guide cylinder 9 is made of insulating materials, and the sliding rod 18 is made of conductive materials.
Three connecting rods 8 are sequentially arranged on the sliding rod 18 in a staggered manner from top to bottom, sliding grooves 17 which are vertically distributed and correspond to the connecting rods 8 are arranged on the side wall of the guide cylinder 9 in a staggered manner at intervals, and the sliding grooves 17 are in sliding fit with the corresponding connecting rods 8 along with the movement of the sliding rod 18. Wherein, the connecting rod 8 one end that is located the left side top of slide bar 18 is fixed on slide bar 18, and the other end is connected with second sleeve 7, and the inner chamber of second sleeve 7 is along vertical distribution and with draw forth the cooperation of pegging graft of pole 6 on the gold utensil 5 on the main insulator body 4.
One end of a connecting rod 8 positioned below the left side of the sliding rod 18 is fixed on the sliding rod 18, the other end of the connecting rod is connected with a third sleeve 16, and an inner cavity of the third sleeve 16 is vertically distributed and is in plug-in fit with the leading-out rod 6 on the hardware fitting 3 under the main insulator body 4. Under the normal use state of the insulator, the upper hardware fitting 5 on the main insulator body 4 is connected with the power transmission line, the lower hardware fitting 3 on the main insulator body 4 is connected with the conductive mounting bracket 1 through the third sleeve 16, and is grounded through the wiring ground on the conductive mounting bracket 1, so that the main insulator is in a normal working state. One end of the connecting rod 8 positioned at the top of the right side of the sliding rod 18 is fixed on the sliding rod 18, the other end of the connecting rod is connected with a first sleeve 10, and the first sleeve 10 is positioned right above the leading-out rod 6 on the auxiliary insulator body 11.
As shown in fig. 4, two elastic reeds 20 are disposed in each of the first sleeve 10, the second sleeve 7, and the third sleeve 16, and the two elastic reeds 20 are distributed in opposite directions, so that the first sleeve 10, the second sleeve 7, and the third sleeve 16 maintain an electrically conductive contact state when being in relatively sliding and plugging fit with the corresponding extraction rod 6.
As shown in fig. 3, a driving assembly 13 connected to a sliding rod 18 is disposed at a lower edge of the conductive mounting bracket 1, the driving assembly 13 is an electric push rod, and an insulating ring 12 is disposed at a position where the electric push rod penetrates through the conductive mounting bracket 1. The telescopic rod of the electric push rod penetrates through the conductive mounting bracket 1 to be connected with the sliding rod 18, and the joint of the telescopic rod of the electric push rod and the sliding rod 18 is provided with an insulating connecting piece 19.
As shown in fig. 2, the current sensor 14 and a controller (not shown) are disposed between the driving assembly 13 and the ground line 15, and the driving assembly 13, the current sensor 14 and the controller are powered by a power transmission line. The current sensor 14 is used for detecting the current abnormality of the grounding wire 15, transmitting the electric signal to the controller, and controlling the opening and closing of the electric push rod by the controller. After the controller controls the electric push rod to start, the telescopic rod of the electric push rod retracts to drive the sliding rod 18 to move downwards, the third sleeve 16 slides out of the leading-out rod 6 on the hardware fitting 3 under the main insulator body 4 along with the downward movement of the sliding rod 18, and the main insulator body 4 is isolated. The second sleeve 7 is always in plug-in fit with the leading-out rod 6 on the hardware fitting 5 on the main insulator body 4 for conducting electricity. However, the first sleeve 10 is inserted and matched with the leading-out rod 6 on the auxiliary insulator body 11 along with the downward movement of the sliding rod 18, so that the power frequency current which cannot be cut off by the nonlinear resistor disc in the main insulator body 4 is introduced into the auxiliary insulator body 11 through the first sleeve 10, the power frequency current is introduced into the grounding wire 15 through the connection of the lower fitting 3 on the auxiliary insulator body 11 and the conductive mounting bracket 1, and then the ground is introduced, so that the fault of one-way grounding is avoided.
The utility model discloses a specific embodiment as follows: in an initial state as shown in fig. 1, the upper fitting 5 on the main insulator body 4 is connected to the power transmission line, the lower fitting 3 on the main insulator body 4 is connected to the conductive mounting bracket 1 through the third sleeve 16, the conductive mounting bracket 1 is grounded through the ground wire 15, and at this time, the main insulator is in a working state. When the main insulator body 4 is damaged due to excessive lightning strike, the current sensor 14 detects continuous power frequency current, transmits the information electric signal to the controller, and the controller sends an instruction of retracting the electric push rod. At this time, the telescopic rod of the electric push rod retracts and moves downwards, and drives the sliding rod 18 to move downwards, so that the third sleeve 16 moves downwards along with the sliding rod 18 and is separated from the leading-out rod 6 on the lower fitting 3 of the main insulator body 4, and the lower fitting 3 on the main insulator body 4 is disconnected from the conductive mounting bracket 1. The second sleeve 7 is always in inserted connection with the leading-out rod 6 on the hardware fitting 5 on the main insulator body 4. The first sleeve 10 is in insertion fit with the lead-out rod 6 on the upper fitting 5 of the auxiliary insulator body 11 along with the downward movement of the sliding rod 18 (as shown in fig. 2), and the upper fitting 5 on the auxiliary insulator body 11 is in conductive connection with the upper fitting 5 on the main insulator body 4 through the third sleeve 16 and the connecting rod 8, so that current is cut into the auxiliary insulator body 11.
Claims (9)
1. The utility model provides a one-way composite post type insulator is prevented to lightning protection for transmission line, is including electrically conductive installing support (1) that is connected with earth connection (15), main insulator body (4) and vice insulator body (11) of setting on electrically conductive installing support (1), and main insulator body (4) all are equipped with gold utensil (5) with the upper end of vice insulator body (11), and the lower extreme all is equipped with down gold utensil (3), its characterized in that: the switching mechanism is arranged between the main insulator body (4) and the auxiliary insulator body (11) and is used for switching current from the main insulator body (4) into the auxiliary insulator body (11); the switching mechanism comprises a guide cylinder (9) arranged on the conductive mounting bracket (1), a sliding rod (18) is arranged in the guide cylinder (9) in a sliding manner, and the sliding rod (18) and the guide cylinder (9) are coaxially arranged;
the sliding rod (18) is sequentially provided with a first sleeve (10), a second sleeve (7) and a third sleeve (16) which are vertically distributed in a staggered manner from top to bottom; the first sleeve (10) is positioned right above the hardware (5) on the auxiliary insulator body (11), and the hardware (5) on the auxiliary insulator body (11) is provided with leading-out rods (6) which are vertically distributed; the second sleeve (7) is in plug-in fit with a leading-out rod (6) arranged on an upper fitting (5) of the main insulator body (4), and the third sleeve (16) is in plug-in fit with the leading-out rod (6) arranged on a lower fitting (3) of the main insulator body (4);
the lower edge of the conductive mounting bracket (1) is provided with a driving assembly (13) connected with a sliding rod (18), the driving assembly (13) is used for driving the sliding rod (18) to drive a first sleeve (10), a second sleeve (7) and a third sleeve (16) to move, so that the first sleeve (10) is in plug-in fit with a leading-out rod (6) on the auxiliary insulator body (11), the third sleeve (16) slides out of the leading-out rod (6) on the main insulator body (4) lower fitting (3) and is positioned under the main insulator body (4).
2. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: three connecting rods (8) are arranged on the sliding rod (18) in a staggered mode, one end of each connecting rod (8) is fixed to the sliding rod (18), and the other end of each connecting rod is connected with the first sleeve (10), the second sleeve (7) and the third sleeve (16) on the corresponding side.
3. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 2 is characterized in that: the side wall of the guide cylinder (9) is provided with sliding chutes (17) which are distributed vertically and used for the corresponding side connecting rods (8) to slide.
4. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: a current sensor (14) for detecting current in the grounding wire (15) and a controller for controlling the opening and closing of the driving assembly (13) are arranged between the driving assembly (13) and the grounding wire (15), and the current sensor (14) is in electric signal connection with the controller.
5. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: an insulating ring (12) is arranged at the position where the driving component (13) penetrates through the conductive mounting bracket (1).
6. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: an insulating mounting seat (2) is arranged between the main insulator body (4) and the conductive mounting bracket (1).
7. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: the driving component (13) is an electric push rod, and a telescopic rod of the electric push rod penetrates through the conductive mounting bracket (1) to be connected with the sliding rod (18).
8. The lightning protection and protection one-way composite column insulator for the transmission line according to claim 7, characterized in that: an insulating connecting piece (19) is arranged between one end of the telescopic rod of the electric push rod, which penetrates through the conductive mounting bracket (1), and the sliding rod (18).
9. The lightning-protection and anti-single-direction composite post insulator for the transmission line according to claim 1 is characterized in that: two elastic reeds (20) distributed towards opposite directions are arranged in the first sleeve (10), the second sleeve (7) and the third sleeve (16).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843891.XU CN218730161U (en) | 2022-10-25 | 2022-10-25 | One-way composite post insulator is prevented in lightning protection for transmission line |
| PCT/CN2023/121466 WO2024087991A1 (en) | 2022-10-25 | 2023-09-26 | Lightning-protected and anti-unidirectional composite post insulator for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843891.XU CN218730161U (en) | 2022-10-25 | 2022-10-25 | One-way composite post insulator is prevented in lightning protection for transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN218730161U true CN218730161U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222843891.XU Active CN218730161U (en) | 2022-10-25 | 2022-10-25 | One-way composite post insulator is prevented in lightning protection for transmission line |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218730161U (en) |
| WO (1) | WO2024087991A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087991A1 (en) * | 2022-10-25 | 2024-05-02 | 云南电网有限责任公司曲靖供电局 | Lightning-protected and anti-unidirectional composite post insulator for power transmission line |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110006154A (en) * | 2009-07-13 | 2011-01-20 | 배한주 | The polymer lightning arrester installation structure and lp insulator for integrated type electric pole |
| CN203895206U (en) * | 2014-06-12 | 2014-10-22 | 宜兴华源电工设备有限公司 | Dual lightning-protection explosion-proof composite column-type insulator |
| CN110648808A (en) * | 2019-09-06 | 2020-01-03 | 国网浙江省电力有限公司衢州供电公司 | Single-phase grounding-proof lightning puncture-proof insulator for overhead line |
| CN112289530B (en) * | 2020-10-23 | 2022-03-29 | 河南四达电力设备股份有限公司 | Lightning-protection explosion-proof single-phase-grounding composite column insulator |
| CN218730161U (en) * | 2022-10-25 | 2023-03-24 | 云南电网有限责任公司曲靖供电局 | One-way composite post insulator is prevented in lightning protection for transmission line |
-
2022
- 2022-10-25 CN CN202222843891.XU patent/CN218730161U/en active Active
-
2023
- 2023-09-26 WO PCT/CN2023/121466 patent/WO2024087991A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087991A1 (en) * | 2022-10-25 | 2024-05-02 | 云南电网有限责任公司曲靖供电局 | Lightning-protected and anti-unidirectional composite post insulator for power transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024087991A1 (en) | 2024-05-02 |
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