CN114397516A - Transmission line arrester with on-line measuring function - Google Patents
Transmission line arrester with on-line measuring function Download PDFInfo
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- CN114397516A CN114397516A CN202111450621.6A CN202111450621A CN114397516A CN 114397516 A CN114397516 A CN 114397516A CN 202111450621 A CN202111450621 A CN 202111450621A CN 114397516 A CN114397516 A CN 114397516A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 208000025274 Lightning injury Diseases 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 29
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 15
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 6
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- 238000009434 installation Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers
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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
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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Abstract
The invention relates to the technical field of lightning arresters of power transmission lines, and discloses a lightning arrester of a power transmission line with an online detection function, which comprises a U-shaped mounting frame, wherein an online detection mechanism for detecting the lightning stroke times of a lightning arrester main body and whether the lightning arrester has the lightning protection function is arranged on the vertical inner side wall of the mounting frame, wherein the vertical inner side wall of the mounting frame is provided with the lightning arrester main body at the inner top and the inner bottom of the mounting frame; the online detection mechanism comprises an insulation box, the insulation box is fixedly connected to the vertical inner side wall of the mounting frame, and a counting assembly used for counting the lightning stroke frequency of the lightning arrester main body is installed on the inner box wall of the insulation box. This transmission line arrester with on-line measuring function, to the thunderbolt number of times of arrester main part with whether have the lightning-arrest function and carry out on-line measuring, and need not to go to patrol and examine before the staff, reduced the human cost consumption.
Description
Technical Field
The invention relates to the technical field of power transmission line arresters, in particular to a power transmission line arrester with an online detection function.
Background
With the continuous development of science and technology, people use more and more electric energy, so the requirements on a power transmission and distribution system are more and more. The lightning arrester is one of important equipment for guaranteeing the safe operation of the power transmission line. However, the lightning arrester of the power transmission line is installed in the air, after long-term use, whether the lightning arrester has the lightning protection function or not can not be detected on line, the number of lightning strikes is not clear, and the personnel are arranged to patrol before the thunderstorm season, so that the labor cost consumption is high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the transmission line lightning arrester with the online detection function, which has the advantages of online detection of the lightning protection function and the lightning stroke times of the lightning arrester, and solves the problems that whether the existing lightning arrester has the lightning protection function cannot be detected online, the lightning stroke times are not clear, and the personnel is arranged to patrol before the thunderstorm season, so that the labor cost is greatly consumed.
(II) technical scheme
In order to achieve the purpose of reducing the labor cost, the invention provides the following technical scheme: a power transmission line lightning arrester with an online detection function comprises a U-shaped mounting frame, wherein a lightning arrester main body is mounted on the inner top and the inner bottom of the mounting frame, and an online detection mechanism for detecting the lightning stroke frequency of the lightning arrester main body and whether the lightning arrester main body has the lightning protection function is mounted on the vertical inner side wall of the mounting frame;
on-line measuring mechanism includes the insulating box, insulating box fixed connection is on the vertical inside wall of mounting bracket, install on the inner tank wall of insulating box and be used for carrying out the count subassembly of counting to arrester main part thunderbolt number of times, still install on the inner tank wall of insulating box and be used for having lightning-arrest function to the arrester main part and carry out the determine module that detects, be connected with on the inner tank wall that the arrester main part was kept away from to the insulating box and be used for carrying out the data processor of data statistics to count subassembly and determine module, data processor is connected with wireless communication device through the wire, wireless communication device installs on the inner tank wall of insulating box, the inner tank wall of insulating box still installs and is used for carrying out the power supply equipment of energy supply to count subassembly, determine module, data processor and wireless communication device.
Preferably, the counting assembly comprises a lightning stroke sensor, an induction lamp and a photosensitive sensor, the lightning stroke sensor is connected with the lightning arrester main body through a wire, the lightning stroke sensor, the induction lamp and the photosensitive sensor are all installed on the inner box wall of the insulating box, the lightning stroke sensor is connected with the induction lamp through a wire, the lightning stroke sensor, the induction lamp and the photosensitive sensor are all connected with power supply equipment through wires, and the photosensitive sensor is connected with the data processor through a wire.
Preferably, the detection assembly comprises a detector for detecting whether the lightning arrester main body has a lightning arresting function, and the detector is respectively connected with the power supply equipment and the data processor through wires.
Preferably, the arrester main part is close to two insulation boards of symmetric connection on the lateral wall of both ends position, the fixed slot has been seted up to the interior top of mounting bracket and the position that the interior bottom corresponds the insulation board, the tank bottom fixedly connected with spring of fixed slot, the other end fixedly connected with collets of spring, the fixed orifices has been seted up to the position that the insulation board corresponds the collets, the collets keep away from the notch of fixed slot and the fixed orifices setting that corresponds in proper order of the one end of spring.
Preferably, a box door is arranged on the box wall of the insulating box close to the lightning arrester main body.
Preferably, the side wall of the insulating block close to one end of the spring is symmetrically connected with sliding blocks, the groove wall of the fixing groove is provided with sliding grooves corresponding to the sliding blocks, and the sliding blocks are slidably connected in the corresponding sliding grooves.
Preferably, a sealing ring is arranged between the notch of the fixing groove and the insulating block, and the sealing ring is fixedly connected to the groove wall of the fixing groove close to the notch.
Preferably, a sealing groove is formed in the side wall of the box door, a rubber sealing strip is fixedly connected to the bottom of the sealing groove, and the other side of the sealing strip is arranged on the inner box wall of the insulating box.
Preferably, a rolling groove is formed in one end, far away from the insulating block, of the sliding block, rolling balls are arranged in the rolling groove, and the rolling balls penetrate through a notch of the rolling groove and are connected to the bottom of the sliding groove in a rolling mode.
(III) advantageous effects
Compared with the prior art, the invention provides the power transmission line lightning arrester with the online detection function, and the power transmission line lightning arrester has the following beneficial effects:
1. this transmission line arrester with on-line measuring function receives the thunderbolt after the arrester main part, the response lamp flashes once after receiving the signal, photosensitive sensor receives the signal because of light changes after, gives data processor with signal transmission, data processor transmits the thunderbolt number of times that the arrester main part received to external equipment terminal through wireless communication device, carries out on-line measuring to the thunderbolt number of times of arrester main part, and need not to go to patrol and examine before the staff, has reduced the human cost consumption.
2. This transmission line arrester with on-line measuring function, the detector regularly detects the lightning-arrest function of arrester main part to detect data transfer and give data processor, data processor arranges the back to data, regularly transmits to external equipment terminal through wireless communication device, whether has the lightning-arrest function to the arrester main part and carries out on-line measuring, and need not to go before the staff and patrol and examine, has reduced the human cost consumption.
3. This transmission line arrester with on-line measuring function fixes the arrester main part in the mounting bracket through inserting the insulating block on the insulation board, when needs are changed the arrester main part, presses the back that breaks away from with the insulating block from the insulation board, can take off the arrester main part from the mounting bracket and change again.
Drawings
Fig. 1 is a schematic structural diagram of a lightning arrester with an online detection function for a power transmission line, according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is an enlarged view of a portion C in fig. 1.
In the figure: 1. a mounting frame; 2. a lightning arrester main body; 3. an insulating case; 4. a data processor; 5. a wireless communication device; 6. a power supply device; 7. a lightning strike sensor; 8. an induction lamp; 9. a photosensitive sensor; 10. a detector; 11. an insulating plate; 12. fixing grooves; 13. a spring; 14. an insulating block; 15. a fixing hole; 16. a box door; 17. a slider; 18. a chute; 19. a seal ring; 20. a sealing groove; 21. a sealing strip; 22. a rolling groove; 23. and a ball.
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 1
Please refer to fig. 1, a transmission line arrester with on-line measuring function, including the mounting bracket 1 that is "U" type, install on the vertical inside wall that is used for 2 thunderbolt numbers of times of lightning arrester main part and whether have lightning-arrest function to detect on the vertical inside wall of mounting bracket 1 that the arrester main part 2 was installed jointly to the interior top and the interior bottom of mounting bracket 1, carry out on-line measuring to the thunderbolt numbers of times of lightning arrester main part and whether have lightning-arrest function, and need not the staff and go to patrol and examine before, reduced the human cost consumption.
Referring to fig. 1, on-line measuring mechanism includes insulating box 3, and insulating box 3 fixed connection is on the vertical inside wall of mounting bracket 1, and insulating box 3 is equipped with chamber door 16 on being close to the tank wall of arrester main part 2, opens chamber door 16, is convenient for maintain electronic equipment in the insulating box 3. The side wall of the box door 16 is provided with a sealing groove 20, the bottom of the sealing groove 20 is fixedly connected with a rubber sealing strip 21, the other side of the sealing strip 20 is arranged on the inner box wall of the insulating box 3, and the sealing performance between the box door 16 and the insulating box 3 is improved through the sealing strip 20.
Referring to fig. 1 and 4, install the count subassembly that is used for counting arrester main part 2 thunderbolt number of times on the inner tank wall of insulating box 3, be connected with the data processor 4 that is used for carrying out data statistics to the count subassembly on the inner tank wall that insulating box 3 kept away from arrester main part 2, data processor 4 is connected with wireless communication device 5 through the wire, wireless communication device 5 installs on the inner tank wall of insulating box 3, the inner tank wall of insulating box 3 still installs and is used for carrying out the power supply unit 6 of energy supply to the count subassembly, data processor 4 and wireless communication device 5.
The counting assembly comprises a lightning stroke sensor 7, an induction lamp 8 and a photosensitive sensor 9, the lightning stroke sensor 7 is connected with the lightning arrester main body 2 through a wire, the lightning stroke sensor 7, the induction lamp 8 and the photosensitive sensor 9 are both installed on the inner box wall of the insulating box 3, the lightning stroke sensor 7 is connected with the induction lamp 8 through a wire, the lightning stroke sensor 7, the induction lamp 8 and the photosensitive sensor 9 are both connected with the power supply equipment 6 through wires, and the photosensitive sensor 9 is connected with the data processor 4 through a wire.
The working principle is as follows: after lightning arrester main part 2 receives the thunderbolt, after thunderbolt sensor 7 received the thunderbolt signal, give induction lamp 8 with signal transmission, induction lamp 8 flashes once after receiving the signal, the light condition changes in insulating case 3, photosensitive sensor 8 receives the signal because of the light changes after, give data processor 4 with signal transmission, data processor 4 increases once on the thunderbolt number of times that lightning arrester main part 2 received, transmit the thunderbolt number of times that lightning arrester main part 2 received to external equipment terminal through wireless communication device 5 afterwards, carry out on-line measuring to the thunderbolt number of times of lightning arrester main part 2, and need not to go before the staff and patrol and examine, the human cost consumption has been reduced.
Example 2
Referring to fig. 1, a transmission line arrester with on-line measuring function, including the mounting bracket 1 that is "U" type, install on the vertical inside wall that is used for 2 thunderbolt numbers of times of lightning arrester main part and whether have the lightning-arrest function and carry out the on-line measuring mechanism that detects on the interior top of mounting bracket 1 and the interior bottom install 2 mounting brackets of lightning arrester main part jointly, carry out on-line measuring with whether have the lightning-arrest function to the thunderbolt number of times of lightning arrester main part, and need not to go to patrol and examine before the staff, the human cost consumption has been reduced.
Referring to fig. 1 and 4, the online detection mechanism includes an insulation box 3, the insulation box 3 is fixedly connected to the vertical inner side wall of the mounting frame 1, a box door 16 is arranged on the box wall of the insulation box 3 close to the arrester main body 2, and the box door 16 is opened to facilitate maintenance of electronic equipment in the insulation box 3. The side wall of the box door 16 is provided with a sealing groove 20, the bottom of the sealing groove 20 is fixedly connected with a rubber sealing strip 21, the other side of the sealing strip 20 is arranged on the inner box wall of the insulating box 3, and the sealing performance between the box door 16 and the insulating box 3 is improved through the sealing strip 20.
Install on the inner tank wall of insulating box 3 and be used for having lightning-arrest function to carry out the determine module that detects to arrester main part 2, insulating box 3 is connected with the data processor 4 that is used for carrying out data statistics to determine module on keeping away from the inner tank wall of arrester main part 2, data processor 4 is connected with wireless communication device 5 through the wire, wireless communication device 5 is installed on the inner tank wall of insulating box 3, the inner tank wall of insulating box 3 is still installed and is used for carrying out the supply equipment 6 of energy to determine module, data processor 4 and wireless communication device 5.
The detection assembly comprises a detector 10 for detecting whether the lightning arrester main body 2 has a lightning arresting function, and the detector 10 is respectively connected with the power supply equipment 6 and the data processor 4 through leads.
The working principle is as follows: detector 10 regularly detects the lightning-arrest function of arrester main part 2 to detect data transfer for data processor 4, data processor 4 arranges the back in order data, regularly transmits to external equipment terminal through wireless communication device 5, whether has the lightning-arrest function to arrester main part 2 and carries out on-line measuring, and need not to go before the staff and patrol and examine, has reduced the human cost consumption.
Example 3
Referring to fig. 1, a transmission line arrester with on-line measuring function, including the mounting bracket 1 that is "U" type, install on the vertical inside wall that is used for 2 thunderbolt numbers of times of lightning arrester main part and whether have the lightning-arrest function and carry out the on-line measuring mechanism that detects on the interior top of mounting bracket 1 and the interior bottom install 2 mounting brackets of lightning arrester main part jointly, carry out on-line measuring with whether have the lightning-arrest function to the thunderbolt number of times of lightning arrester main part, and need not to go to patrol and examine before the staff, the human cost consumption has been reduced.
Referring to fig. 2-3, two insulation boards 11 are symmetrically connected to the side wall of the lightning arrester main body 2 near the two ends, fixing grooves 12 are formed in the positions, corresponding to the insulation boards 11, of the inner top and the inner bottom of the mounting frame 1, springs 13 are fixedly connected to the bottoms of the fixing grooves 12, insulation blocks 14 are fixedly connected to the other ends of the springs 13, fixing holes 15 are formed in the positions, corresponding to the insulation blocks 14, of the insulation boards 11, and one ends, far away from the springs 13, of the insulation blocks 14 sequentially penetrate through the notches of the fixing grooves 12 and the corresponding fixing holes 15.
The side wall of the insulating block 14 close to one end of the spring 13 is symmetrically connected with a sliding block 17, a sliding groove 18 is formed in the groove wall of the fixing groove 12 corresponding to the sliding block 17, the sliding block 17 is connected in the corresponding sliding groove 18 in a sliding mode, the insulating block 14 is driven to slide in the sliding groove 18 synchronously when moving, the insulating block 14 is prevented from being separated from the fixing groove 12, a rolling groove 22 is formed in one end, far away from the insulating block 14, of the sliding block 17, a rolling ball 23 is arranged in the rolling groove 22, the ball 23 penetrates through a notch of the rolling groove 22 and is connected to the groove bottom of the sliding groove 18 in a rolling mode, the ball 23 is driven to roll when the sliding block 17 moves in the sliding groove 18, and friction resistance of the sliding block 17 when moving in the sliding groove 18 is reduced.
Referring to fig. 3, a sealing ring 19 is disposed between the notch of the fixing groove 12 and the insulating block 14, and the sealing ring 19 is fixedly connected to the groove wall of the fixing groove 12 at a position close to the notch to prevent dust and rainwater from entering the fixing groove 12.
The working principle is as follows: the lightning arrester main body 2 in the installation frame 1 is fixed through the insulating block 14 inserted into the insulating plate 11, when the lightning arrester main body 2 needs to be replaced, pressure towards the respective spring 13 is applied to the insulating block 14, the insulating block 14 is separated from the insulating plate 11 after being stressed and the spring 13 is compressed to move in the fixing groove 12, and after the insulating block 14 is separated from the insulating plate 11, the lightning arrester main body 2 can be taken down from the installation frame 1 and then replaced.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (9)
1. The utility model provides a transmission line arrester with on-line measuring function, is including mounting bracket (1) that is "U" type, arrester main part (2), its characterized in that are installed jointly to the interior top and interior bottom of mounting bracket (1): an online detection mechanism for detecting the lightning stroke times and whether the lightning protection function is available of the lightning arrester main body (2) is arranged on the vertical inner side wall of the mounting frame (1);
the online detection mechanism comprises an insulation box (3), the insulation box (3) is fixedly connected to the vertical inner side wall of the mounting rack (1),
a counting component for counting the lightning stroke frequency of the lightning arrester main body (2) is arranged on the inner box wall of the insulating box (3),
the inner box wall of the insulating box (3) is also provided with a detection component for detecting whether the arrester main body (2) has the lightning protection function,
be connected with data processor (4) that are used for carrying out data statistics to count subassembly and determine module on the inner tank wall that arrester main part (2) was kept away from in insulating case (3), data processor (4) are connected with wireless communication device (5) through the wire, wireless communication device (5) are installed on the inner tank wall of insulating case (3), power supply unit (6) that are used for carrying out the energy supply to count subassembly, determine module, data processor (4) and wireless communication device (5) are still installed to the inner tank wall of insulating case (3).
2. The transmission line arrester with the online detection function according to claim 1, characterized in that: the counting assembly comprises a lightning stroke sensor (7), an induction lamp (8) and a photosensitive sensor (9), the lightning stroke sensor (7) is connected with the lightning arrester main body (2) through a wire, the lightning stroke sensor (7), the induction lamp (8) and the photosensitive sensor (9) are all installed on the inner box wall of the insulating box (3), the lightning stroke sensor (7) is connected with the induction lamp (8) through a wire, the lightning stroke sensor (7), the induction lamp (8) and the photosensitive sensor (9) are all connected with the power supply equipment (6) through wires, and the photosensitive sensor (9) is connected with the data processor (4) through a wire.
3. The transmission line arrester with the online detection function according to claim 1, characterized in that: the detection assembly comprises a detector (10) for detecting whether the lightning arrester main body (2) has a lightning arresting function, and the detector (10) is respectively connected with the power supply equipment (6) and the data processor (4) through leads.
4. The transmission line arrester with the online detection function according to claim 1, characterized in that: the lightning arrester is characterized in that the lightning arrester body (2) is symmetrically connected with two insulation boards (11) on the side wall close to the two ends, the inner top and the inner bottom of the mounting rack (1) correspond to the positions of the insulation boards (11) and are provided with fixing grooves (12), the groove bottom of the fixing grooves (12) is fixedly connected with springs (13), the other ends of the springs (13) are fixedly connected with insulation blocks (14), the positions of the insulation boards (11) corresponding to the insulation blocks (14) are provided with fixing holes (15), and one ends of the insulation blocks (14) far away from the springs (13) sequentially penetrate through notches of the fixing grooves (12) and the corresponding fixing holes (15).
5. The transmission line arrester with the online detection function according to claim 1, characterized in that: and a box door (16) is arranged on the box wall of the insulating box (3) close to the lightning arrester main body (2).
6. The transmission line arrester with the online detection function according to claim 4, characterized in that: the side wall of the insulating block (14) close to one end of the spring (13) is symmetrically connected with sliding blocks (17), the groove wall of the fixing groove (12) is provided with sliding grooves (18) corresponding to the sliding blocks (17), and the sliding blocks (17) are slidably connected in the corresponding sliding grooves (18).
7. The transmission line arrester with the online detection function according to claim 4, characterized in that: and a sealing ring (19) is arranged between the notch of the fixing groove (12) and the insulating block (14), and the sealing ring (19) is fixedly connected to the groove wall of the fixing groove (12) close to the notch.
8. The transmission line arrester with the online detection function according to claim 5, characterized in that: the sealing box is characterized in that a sealing groove (20) is formed in the side wall of the box door (16), a sealing strip (21) made of rubber is fixedly connected to the bottom of the sealing groove (20), and the other side of the sealing strip (20) is arranged on the inner box wall of the insulating box (3).
9. The transmission line arrester with the online detection function according to claim 6, characterized in that: a rolling groove (22) is formed in one end, far away from the insulating block (14), of the sliding block (17), rolling balls (23) are arranged in the rolling groove (22), and the rolling balls (23) penetrate through a notch of the rolling groove (22) and are connected to the bottom of the sliding groove (18) in a rolling mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111450621.6A CN114397516A (en) | 2021-12-01 | 2021-12-01 | Transmission line arrester with on-line measuring function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111450621.6A CN114397516A (en) | 2021-12-01 | 2021-12-01 | Transmission line arrester with on-line measuring function |
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| CN202111450621.6A Pending CN114397516A (en) | 2021-12-01 | 2021-12-01 | Transmission line arrester with on-line measuring function |
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| CN213423309U (en) * | 2020-11-16 | 2021-06-11 | 苏州市远帆电器有限公司 | Lightning stroke counting device based on NB communication |
| CN213517227U (en) * | 2020-10-28 | 2021-06-22 | 上海福林检测技术有限公司 | Junction box for lightning stroke test |
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Effective date of registration: 20220928 Address after: 243000 No.7 Huayu Road, Ma'anshan City, Anhui Province Applicant after: STATE GRID ANHUI ELECTRIC POWER CO.,LTD. MAANSHAN POWER SUPPLY CO. Applicant after: Dangtu County power supply company of State Grid Anhui Electric Power Co.,Ltd. Address before: 243000 No. 7, Huayu Road, Huashan District, Ma'anshan City, Anhui Province Applicant before: STATE GRID ANHUI ELECTRIC POWER CO.,LTD. MAANSHAN POWER SUPPLY CO. Applicant before: STATE GRID CORPORATION OF CHINA |
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Application publication date: 20220426 |