CN215896080U - Lightning protection device for power distribution network line - Google Patents
Lightning protection device for power distribution network line Download PDFInfo
- Publication number
- CN215896080U CN215896080U CN202121891544.3U CN202121891544U CN215896080U CN 215896080 U CN215896080 U CN 215896080U CN 202121891544 U CN202121891544 U CN 202121891544U CN 215896080 U CN215896080 U CN 215896080U
- Authority
- CN
- China
- Prior art keywords
- lightning
- lightning arrester
- distribution network
- lead
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 239000011787 zinc oxide Substances 0.000 description 5
- 208000025274 Lightning injury Diseases 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to the technical field of auxiliary equipment of a power transmission network, in particular to a lightning protection device for a power distribution network line, which comprises a pole tower and a power transmission line, wherein a cross arm is arranged on the pole tower, and a plurality of lightning arresters are arranged on the cross arm; one end of the lightning arrester is connected with the power transmission line in a one-to-one manner; one end of the lightning arrester is connected with a lightning arrester lead respectively, and the other end of the lightning arrester lead is connected with a grounding device. According to the utility model, the lightning arrester is arranged on the cross arm while the lightning conductor is arranged on the tower, so that the lightning arrester and the lightning conductor are connected to the ground network through the grounding device, and the protection effect of the 10KV lightning arrester on the 10KV line tower can be improved.
Description
Technical Field
The utility model relates to the technical field of auxiliary equipment of a power transmission network, in particular to a lightning protection device for a power distribution network line.
Background
The safe operation of 10kV overhead distribution lines has always occupied a significant position in power grids. As the 10kV overhead distribution line has large power supply area, a plurality of dispersed load points, more complex network wiring and lower insulation level, accidents such as insulator breakdown, line switch damage, wire breakage and the like caused by lightning strike frequently occur, and the influence is more prominent along with the increasing of the load of the power grid in China. The lightning protection to the 10kV overhead distribution line not only can improve the reliability and safety of power supply, but also can bring basic guarantee to the normal production and living power consumption of people. For the reasons, the lightning protection research on the 10kV overhead distribution line is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lightning protection device for a power distribution network line, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a lightning protection device for a power distribution network line comprises a pole tower 8, a power transmission line 9 and a high-voltage lead 4, wherein a cross arm 1 is arranged on the pole tower 8, and a plurality of lightning arresters 2 are arranged on the cross arm 1; one end of the lightning arrester 2 is connected with the power transmission line 9 in a one-to-one mode through a high-voltage lead 4; one end of the lightning arrester 2 is connected with a lightning arrester lead 5 respectively, and the other end of the lightning arrester lead 5 is connected with a grounding device 6.
Furthermore, two metal balls are arranged at the top end of the lightning arrester 2, and a protection gap is arranged between the two metal balls.
Further, the grounding device 6 is coated with oil insulating paint.
Further, the cross arm 1 is an angle steel.
Furthermore, the bottom end of the grounding device 6 is provided with a ground net.
Furthermore, a circular hoop 3 is arranged on the tower 8.
Furthermore, the two ends of the high-voltage lead 4 and the lightning arrester lead 5 are respectively provided with a jointing clamp 7; the high-voltage lead 4 is respectively connected with the power transmission line 9 and one end of the lightning arrester 2 through a jointing clamp 7; the lightning arrester lead 5 is respectively connected with the other end of the lightning arrester 2 and the grounding device 6 through a jointing clamp 7.
The lightning protection pole tower device for the distribution line in the multi-thunder area is mainly characterized in that a straight pole type is combined according to the installation characteristics of a 10kV zinc oxide lightning arrester, and accessories such as a cross arm, a lead, an earthing device and the like are additionally arranged, so that the design of the lightning protection pole tower device for the distribution line in the multi-thunder area is completed.
The arrester is connected between the cable and ground, usually in parallel with the equipment to be protected. The lightning arrester can effectively protect an overhead line, and once abnormal voltage appears, the lightning arrester acts to play a role in protection. When the overhead line operates at normal operating voltage, the arrester will not function and is considered to be open circuit to ground. Once high voltage occurs and the insulation of the protected equipment is endangered, the lightning arrester acts immediately to guide high voltage impact current to the ground, thereby limiting the voltage amplitude and protecting the insulation of the communication cable and the equipment. When the overvoltage disappears, the lightning arrester is quickly restored to the original state, so that the communication line works normally.
The zinc oxide lightning arrester valve plate has excellent nonlinear characteristic and current capacity, and is small in size, light in weight and convenient to install. The feeder line of the line arrester is installed, so that the lightning stroke breakage rate and the lightning stroke tripping rate of the insulated conductor can be effectively reduced.
According to the utility model, the lightning arrester is arranged on the sub cross arm while the lightning conductor is arranged on the tower, so that the lightning arrester and the lightning conductor are connected to the ground network through the grounding device, and the protection effect of the 10KV lightning arrester on the 10KV line tower can be improved.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the lightning protection equipment adopts a zinc oxide lightning arrester with mature technology, and the protection performance of the lightning protection equipment is undoubted;
(2) the additional equipment is simple, easy to install, safe and reliable;
(3) the additional equipment can be selectively added according to the specific thunder area;
(4) low investment and high return.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the structure of a side chamber of the present invention;
in the figure: 1. a cross arm; 2. a lightning arrester; 3. a circular hoop; 4. a high voltage lead; 5. a lightning arrester lead wire; 6. a grounding device; 7. a jointing clamp; 8. a pole tower; 9. and (5) power transmission line.
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.
As shown in fig. 1, the present invention provides a technical solution:
a lightning protection device for a power distribution network line comprises a pole tower 8 and a power transmission line 9, wherein a cross arm 1 is arranged on the pole tower 8, and a plurality of lightning arresters 2 are arranged on the cross arm 1; one end of the lightning arrester 2 is connected with the power transmission line 9 in a one-to-one manner; one end of the lightning arrester 2 is connected with a lightning arrester lead 5 respectively, and the other end of the lightning arrester lead 5 is connected with a grounding device 6.
Example 1
As shown in fig. 1, the present invention provides a technical solution:
a lightning protection device for a power distribution network line comprises a pole tower 8 and a power transmission line 9, wherein a cross arm 1 is arranged on the pole tower 8, and a plurality of lightning arresters 2 are arranged on the cross arm 1; one end of the lightning arrester 2 is connected with the power transmission line 9 in a one-to-one manner; one end of the lightning arrester 2 is connected with a lightning arrester lead 5 respectively, and the other end of the lightning arrester lead 5 is connected with a grounding device 6. The top end of the lightning arrester 2 is provided with two metal balls, and a protection gap is arranged between the two metal balls. And the grounding device 6 is coated with oil insulating paint. The cross arm 1 is angle steel. The bottom end of the grounding device 6 is provided with a ground screen. And the tower 8 is provided with a circular hoop 3.
The two ends of the high-voltage lead 4 and the lightning arrester lead 5 are respectively provided with a jointing clamp 7; the high-voltage lead 4 is respectively connected with the power transmission line 9 and one end of the lightning arrester 2 through a jointing clamp 7; the lightning arrester lead 5 is respectively connected with the other end of the lightning arrester 2 and the grounding device 6 through a jointing clamp 7.
The lightning protection pole tower 8 device for the distribution line in the multi-thunder area is mainly characterized in that a linear pole type is combined according to the installation characteristics of a 10kV zinc oxide lightning arrester 2, and accessories such as a cross arm 1, a lead, a grounding device 6 and the like are additionally arranged, so that the design of the lightning protection pole tower device for the distribution line in the multi-thunder area is completed.
The zinc oxide lightning arrester valve plate has excellent nonlinear characteristic and current capacity, and is small in size, light in weight and convenient to install. The feeder line of the line arrester is installed, so that the lightning stroke breakage rate and the lightning stroke tripping rate of the insulated conductor can be effectively reduced.
According to the utility model, the lightning arrester is arranged on the sub cross arm while the lightning conductor is arranged on the tower, so that the lightning arrester and the lightning conductor are connected to the ground network through the grounding device, and the protection effect of the 10KV lightning arrester on the 10KV line tower can be improved.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a distribution network line lightning protection device, includes shaft tower (8), transmission line (9), high voltage lead (4), its characterized in that: a cross arm (1) is arranged on the tower (8), and a plurality of lightning arresters (2) are arranged on the cross arm (1); one end of the lightning arrester (2) is connected with the power transmission line (9) in a one-to-one mode through a high-voltage lead (4); the other end of the lightning arrester (2) is connected with a lightning arrester lead (5) respectively, and the other end of the lightning arrester lead (5) is connected with a grounding device (6).
2. The lightning protection device for distribution network lines of claim 1, wherein: the top end of the lightning arrester (2) is provided with two metal balls, and a protection gap is arranged between the two metal balls.
3. The lightning protection device for distribution network lines of claim 1, wherein: and insulating paint is coated on the grounding device (6).
4. The lightning protection device for distribution network lines of claim 1, wherein: the cross arm (1) is an angle steel.
5. The lightning protection device for distribution network lines of claim 1, wherein: the bottom end of the grounding device (6) is provided with a ground screen.
6. The lightning protection device for distribution network lines of claim 1, wherein: and a circular hoop (3) is arranged on the tower (8).
7. The lightning protection device for distribution network lines of claim 1, wherein: the two ends of the high-voltage lead (4) and the lightning arrester lead (5) are respectively provided with a jointing clamp (7); the high-voltage lead (4) is respectively connected with one end of the power transmission line (9) and one end of the lightning arrester (2) through a jointing clamp (7); the lightning arrester lead (5) is respectively connected with the other end of the lightning arrester (2) and the grounding device (6) through a jointing clamp (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891544.3U CN215896080U (en) | 2021-08-13 | 2021-08-13 | Lightning protection device for power distribution network line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891544.3U CN215896080U (en) | 2021-08-13 | 2021-08-13 | Lightning protection device for power distribution network line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215896080U true CN215896080U (en) | 2022-02-22 |
Family
ID=80563364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121891544.3U Active CN215896080U (en) | 2021-08-13 | 2021-08-13 | Lightning protection device for power distribution network line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215896080U (en) |
-
2021
- 2021-08-13 CN CN202121891544.3U patent/CN215896080U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102157253A (en) | Outer-gap lightning arrester | |
| CN104518475A (en) | Distribution network integrated lightning protection system | |
| CN102290775B (en) | Lightning-caused breaking prevention method for 10kV overhead insulating line | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN202084898U (en) | Adjustable spherical electrode circuit protector | |
| CN211088006U (en) | Insulator with lightning protection performance | |
| CN215896080U (en) | Lightning protection device for power distribution network line | |
| CN209199692U (en) | A kind of tension-resistant rod external series gap metal oxide arrester | |
| CN203260987U (en) | High-voltage line lightning arrester | |
| CN207265416U (en) | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device | |
| CN210349489U (en) | Multiple series gap lightning stroke flashover protector | |
| CN202940460U (en) | Tower lightning arrester | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN216794242U (en) | Lightning flashover protection device for island | |
| CN213424750U (en) | Series multi-gap metal oxide arrester | |
| CN205140662U (en) | Arrester of external series gap | |
| CN205810490U (en) | The voltage-sharing protective device of a kind of extra-high voltage combined insulator and insulator chain | |
| CN103812010A (en) | Two-stage series gap lightning flashover protector with discharge counter | |
| CN204012615U (en) | A kind of Broken of Overhead Insulation Lines By Lightning protector | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN209199696U (en) | A kind of novel metal oxide arrester | |
| CN207442184U (en) | Low residual voltage, deterioration visible fixed external series gap arrester | |
| CN209199703U (en) | A kind of metal oxide arrester | |
| CN201490714U (en) | Line lighting protection overvoltage protector | |
| CN111145967A (en) | Device capable of suppressing lightning overvoltage of distribution line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |