CN207265416U - A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device - Google Patents
A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device Download PDFInfo
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- CN207265416U CN207265416U CN201721253166.XU CN201721253166U CN207265416U CN 207265416 U CN207265416 U CN 207265416U CN 201721253166 U CN201721253166 U CN 201721253166U CN 207265416 U CN207265416 U CN 207265416U
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- Prior art keywords
- limiter
- transmission line
- protection device
- lightning stroke
- overhead transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000007664 blowing Methods 0.000 title claims abstract description 18
- 208000025274 Lightning injury Diseases 0.000 claims abstract description 40
- 239000012212 insulator Substances 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 7
- 239000011787 zinc oxide Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of 10kV to exchange overhead transmission line arc blowing type lightning protection device, including lightning stroke flashover limiter, recruit arc electrode, supporting insulator, metal connecting plate, electrode and multiple arc-chutes in multiple steel balls are arranged at intervals with inside its described lightning stroke flashover limiter, the lightning stroke flashover limiter is in parallel with supporting insulator and is connected on same metal connecting plate, arc electrode is recruited to form series gap with lightning stroke flashover limiter, and clearance distance is fixed.The utility model definite functions, function admirable, easy for installation, the flashover caused by lightning stroke circuit has preferable drainage, pressure limiting and blow-out effect, ensure that the safety and reliability of electric system.
Description
Technical field
Electric system lightning protection field is the utility model is related to, it is more particularly to a kind of to be used for 10kV exchange overhead transmission line arc blowing types
Lightning protection device.
Background technology
Overhead transmission line is power grid construction basis, is the important component of electric system, with the hair of electric system
Exhibition, accident is also increasing caused by transmission line of lightning strike, how to prevent and reduce lightning stroke overhead transmission line to electricity
Infringement, is the Important Problems that power network safety operation must take into consideration caused by net.
The existing lightning protection measures of overhead transmission line mainly using gapless lightning stroke flashover limiter and have gap lightning stroke flashover
Electrode is done in limiter two ways, gapless lightning stroke flashover limiter inside using zinc oxide, which needs special ground connection,
After long-play, grounding body corrosion, ground resistance increase, zinc oxide material is easy to aging, there are service life it is shorter, safeguard it is tired
The problem of difficult；Although there is gap lightning stroke flashover limiter service life to grow many compared with zero-clearance zinc oxide limiter, its
The factor such as gap Chang Yinwei strong wind, arc sag change, distance easily changes, and then causes properties of product unstable or even property
Can failure.
Utility model content
The purpose of this utility model is to provide one kind to be used for 10kV exchange overhead transmission line arc blowing type lightning protection devices, to solve
Problem proposed in the above background technology.
The utility model is achieved through the following technical solutions：
A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device, including lightning stroke flashover limiter, trick arc electrode, support are absolutely
Edge, metal connecting plate, it is characterised in that the lightning stroke flashover limiter is made of shell and electrode in multiple steel balls, multiple
Electrode gap is arranged in inside the shell in steel ball, and is internally formed multiple arc-chutes, the trick arc electricity in lightning stroke flashover limiter
Pole is combined with lightning stroke flashover limiter, supporting insulator to be connected.
Further, the supporting insulator is in parallel with lightning stroke flashover limiter, lightning stroke flashover limiter one end and support
Insulator is connected to same metal connecting plate, is connected with supporting insulator and recruits arc electrode, recruits arc electrode to be limited with lightning stroke flashover
There are series gap for device.
Further, the clearance distance of the series gap is fixed.
Further, it further includes wire jumper and is pressed from both sides with upper conductor grip, lower wire, and the wire jumper upper end passes through upper conductor grip and height
Pressure conducting wire is connected, and wire jumper lower end is pressed from both sides by lower wire to be connected with supporting insulator.
Further, the trick arc electrode is cylindrical metal.
Further, the metal connecting plate includes support cross arm and metal mounting bracket.
Further, the support cross arm is bolted with metal mounting bracket.
Further, the supporting insulator includes upper supporting insulator and lower supporting insulator.
Compared with prior art, what the utility model reached has the beneficial effect that：
A kind of 10kV exchange overhead transmission line arc blowing type lightning protection device provided by the utility model, in its lightning stroke flashover limiter
Portion is spaced electrode in multiple steel balls, can will be separated into multiple arc-chutes inside lightning stroke flashover limiter, break away from lightning stroke
Dependence of the flashover limiter to zinc oxide material, product, by the arc blow-out function of itself, can be in 10ms without special ground connection
Short circuit current flow is inside blocked, extends lightning stroke flashover limiter service life.
In addition, supporting insulator is in parallel with lightning stroke flashover limiter, ring electrode is installed in one end of supporting insulator, this
The advantages of kind structure is influence of the clearance distance from windage yaw, and clearance distance can remain unchanged, and solve conventional serial gap thunder
Flashover limiter is hit because external force factor easily leads to clearance distance change, so as to cause the unstable phenomenon of properties of product.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only the preferred reality of the utility model
Example is applied, for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is that a kind of structure for 10kV exchange overhead transmission line arc blowing type lightning protection devices that the utility model embodiment provides is shown
It is intended to.
In figure, 1 is upper conductor grip, and 2 be wire jumper, and 3 is recruit arc electrode, and 4 be electrode in steel ball, and 5 be lightning stroke flashover limiter
Shell, 6 be lower supporting insulator, and 7 be upper supporting insulator, and 8 be metal mounting bracket, and 9 be support cross arm, and 10 be bolt, 11
Pressed from both sides for high-voltage conducting wires, 12 for lower wire, 13 be bolt, and 14 be series gap.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only merely the part of the embodiment of the utility model, rather than entirely
The embodiment in portion.Embodiment based on the utility model, those of ordinary skill in the art are not making creative work premise
Lower other obtained all embodiments, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device, including lightning stroke flashover limiter, trick arc
Electrode 3, supporting insulator, metal connecting plate, wire jumper and upper conductor grip, lower wire press from both sides, the lightning stroke limiter include shell 5 with
Electrode 4 in multiple steel balls, shell 5 are made of silastic material, possess excellent insulative water-proof performance, in the multiple steel ball
Electrode 4 is spaced inside lightning stroke limiter, and will be separated into multiple arc-chutes inside lightning stroke limiter, and arc-chutes can be by greatly
Electric arc is converted into small electric arc, and is blown in air and extinguishes.
The supporting insulator is different according to respective installation site, is divided into lower supporting insulator 6 and upper supporting insulator 7,
The metal connecting plate includes metal mounting bracket 8 and support cross arm 9, passes through bolt between metal mounting bracket 8 and support cross arm 9
10 are connected, and the lightning stroke flashover limiter is installed in parallel in lower 6 side of supporting insulator by metal connecting plate, its specific connection
Mode is that 8 shape of metal mounting bracket is L-shaped, and two circular unthreaded holes are provided with its shorter one end, and bolt 13 passes through two circles
Shape unthreaded hole is connected with lightning stroke flashover limiter, and the longer one end of metal mounting bracket 8 is connected with lower supporting insulator 6, lower wire
It is further connected with folder 12 and recruits arc electrode 3, upper 7 lower end of supporting insulator is connected with cross-arm 9, and upper end is connected with high-voltage conducting wires 11；It is preferred that
, 3 shape of trick arc electrode is cylinder, ensures the stability of electric discharge.By above-mentioned connection mode, lightning stroke limiter can be made
There are series gap 14 between trick arc electrode 3, and the clearance distance of series gap 14 is fixed, and series gap 14 makes lightning stroke flashover
Limiter will not usually be influenced be subject to power-frequency voltage, switching overvoltage etc..
The 10kV exchanges overhead transmission line arc blowing type lightning protection device further includes wire jumper 2 and upper conductor grip 11, lower wire folder 12,
2 upper end of wire jumper is connected by upper conductor grip 1 with high-voltage conducting wires 11, and 2 lower end of wire jumper passes through lower wire folder 12 and lower supporting insulator
Connected 6 are connected.
During work, lower supporting insulator 6, lightning stroke flashover limiter, recruit arc electrode 3 to form lightning protection drainage channel with wire jumper 2,
Wire jumper 2 can shunt the thunder-strike current on high-voltage conducting wires 11, under lightning surge effect caused by thunder-strike current, series gap 14
Breakdown to produce big electric arc, big electric arc can be converted into substantial amounts of small electric arc by lightning stroke flashover limiter, these small electric arcs are again by two
Arc-chutes discharge in a adjacent steel ball between electrode 4.Gases at high pressure caused by arc-chutes will during electric arc discharges
Electric arc is blown in the air of surrounding, so that by arc extinction, realizes the function of blocking power frequency short circuit current flow, whole arc blow-out process is not
, i.e., can be by current chopping, so as to ensure that circuit relay protection will not when electric current first time zero passage more than 10ms
Action, eventually arrives at the purpose for preventing that line tripping from breaking.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
The spirit of utility model and any modification, equivalent substitution, improvement and etc. within principle, done, should be included in the utility model
Within the scope of protection.
Claims (8)
1. a kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device, including lightning stroke flashover limiter, trick arc electrode, supports insulative
Son, metal connecting plate, it is characterised in that the lightning stroke flashover limiter is made of shell and electrode in multiple steel balls, Duo Gegang
Electrode gap arranges inside the shell in pearl, and multiple arc-chutes will be separated into inside lightning stroke flashover limiter, the trick arc electrode
Combine and be connected with lightning stroke flashover limiter, supporting insulator.
2. a kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 1, it is characterised in that lightning stroke is dodged
Network limiter one end is connected on same metal connecting plate with supporting insulator, and the supporting insulator is limited with lightning stroke flashover
Device is in parallel, is also connected with supporting insulator and recruits arc electrode, and recruiting arc electrode, there are series gap with lightning stroke flashover limiter.
A kind of 3. 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 2, it is characterised in that the string
The clearance distance in connection gap is fixed.
4. a kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 1, it is characterised in that it is also wrapped
Include wire jumper to press from both sides with upper conductor grip, lower wire, the wire jumper upper end is connected by upper conductor grip with high-voltage conducting wires, and wire jumper lower end passes through
Lower wire folder is connected with supporting insulator.
A kind of 5. 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 1, it is characterised in that the trick
Arc electrode is cylindrical metal.
A kind of 6. 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 1, it is characterised in that the gold
Belonging to connecting plate includes support cross arm and metal mounting bracket.
A kind of 7. 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 6, it is characterised in that the branch
Support cross-arm is bolted with metal mounting bracket.
A kind of 8. 10kV exchanges overhead transmission line arc blowing type lightning protection device according to claim 1, it is characterised in that the branch
Supportting insulator includes upper supporting insulator and lower supporting insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721253166.XU CN207265416U (en) | 2017-09-27 | 2017-09-27 | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721253166.XU CN207265416U (en) | 2017-09-27 | 2017-09-27 | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207265416U true CN207265416U (en) | 2018-04-20 |
Family
ID=61919319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721253166.XU Active CN207265416U (en) | 2017-09-27 | 2017-09-27 | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207265416U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270842A (en) * | 2021-06-01 | 2021-08-17 | 安徽汉轩信息科技有限公司 | Lightning overvoltage protection device and protection method for overhead line |
| CN114629002A (en) * | 2021-04-23 | 2022-06-14 | 南宁超伏电气科技有限公司 | Method and device for strengthening electro-hydraulic effect arc extinction |
| CN115940074A (en) * | 2022-12-30 | 2023-04-07 | 成都鑫盛源电气设备有限公司 | A Differentiated Lightning Protection Control Method Based on Multi-chamber Blowing Technology |
-
2017
- 2017-09-27 CN CN201721253166.XU patent/CN207265416U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629002A (en) * | 2021-04-23 | 2022-06-14 | 南宁超伏电气科技有限公司 | Method and device for strengthening electro-hydraulic effect arc extinction |
| CN113270842A (en) * | 2021-06-01 | 2021-08-17 | 安徽汉轩信息科技有限公司 | Lightning overvoltage protection device and protection method for overhead line |
| CN115940074A (en) * | 2022-12-30 | 2023-04-07 | 成都鑫盛源电气设备有限公司 | A Differentiated Lightning Protection Control Method Based on Multi-chamber Blowing Technology |
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