CN204376194U - 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester - Google Patents
10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester Download PDFInfo
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- CN204376194U CN204376194U CN201520047507.2U CN201520047507U CN204376194U CN 204376194 U CN204376194 U CN 204376194U CN 201520047507 U CN201520047507 U CN 201520047507U CN 204376194 U CN204376194 U CN 204376194U
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- lightning arrester
- clavate
- cross
- external series
- series gap
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- 239000012212 insulator Substances 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 208000025274 Lightning injury Diseases 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 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 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012211 strain insulator Substances 0.000 description 1
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Abstract
The utility model is a kind of 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, insulated conductor (7) is supported by the pillar line insulator (8) be fixed in pole arm, it is characterized in that: described insulated conductor (7) has the insulating barrier wire (1) be stripped, lightning arrester body (4) is fixedly mounted on lightning arrester mounting panel (5), this lightning arrester mounting panel (5) is fixedly connected with lightning arrester supporting plate (6), discharging gap is formed between the described insulating barrier wire (1) that is stripped and the cross clavate discharge electrode (2) on lightning arrester body (4) top.Advantage of the present utility model: adopt cross electrode external series gap structure, discharge path is reliable, and weatherability is strong, easy for installation.
Description
Technical field
The utility model relates to a kind of 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, for the protection of the overvoltage protection that electric equipment and electric line damage from atmospheric over-voltage and switching overvoltage.
Background technology
Along with power matching network circuit constantly lengthens, insulating design universal, damage to crops caused by thunder causes line-outage contingency to highlight, and easily results in personal injury caused by an accident after broken string, insulator breakdown accident statistics quantity also in continuous rising, serious threat distribution network line safe operation.Therefore prevent lightning damage from becoming a key technology of insulated conductor power transmission.
Numerous scientific research institutions and enterprise have dropped into a large amount of human and material resources and have studied.Be proposed a series of lightning protection components such as electric discharge wire clamp, clamper insulator, anti-lightning strike insulator.But effect is all undesirable.Start after 2008 to apply the element of lightning arrester as anti-insulated conductor breakage caused by lightning stroke.This element achieves good effect, and it can not only prevent lightning-caused breaking and greatly reduce tripping rate with lightning strike.
Mainly to be arranged in power station due to original lightning arrester and on transmission line bar by electric equipment, the structure of product and electrical parameter can meet the demands completely.Transmission line lightning protection is arranged in the pole arm of transmission line by lightning arrester.Of a great variety due to high-tension pole, has a series of rod-type such as straight line pole, the bar of resistance to line, the straight line pole of resistance to line, strain insulator angle pole, disconnected link rod.Same lightning arrester is difficult to meet the demands.The original multiple lightning arrester of straight line pole is applied in system.As penetrating electrodes formula composite sheath metal oxide surge attester with series gap, annular electrode formula composite sheath metal oxide surge attester with series gap, 10kV gap lightning arrester etc.All there is following Railway Project in these lightning arresters for straight line pole.First: gap itself is not fixed, the adjustment of clearance distance is when mounted quite difficult.Because wire itself has sag, during installation, measurement clearance distance is gone to be difficult to measure accurately with ruler.Second: discharging gap shape mostly is ball-ball electric discharge, and discharge dispersity is larger.3rd: product structure is complicated, install complicated, technique is difficult to control.
Summary of the invention
The utility model proposes a kind of 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, its object, in order to overcome the problems referred to above existing in prior art, has external series gap lightning arrester easy for installation, and discharging gap is stablized.
Technical solution of the present utility model is: 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, insulated conductor (7) is supported by the pillar line insulator (8) be fixed in pole arm, it is characterized in that: described insulated conductor (7) has the insulating barrier wire (1) be stripped, lightning arrester body (4) is fixedly mounted on lightning arrester mounting panel (5), this lightning arrester mounting panel (5) is fixedly connected with lightning arrester supporting plate (6), discharging gap is formed between the described insulating barrier wire (1) that is stripped and the cross clavate discharge electrode (2) on lightning arrester body (4) top.
The beneficial effects of the utility model are: this 10kV system insulation overhead transmission line straight line pole clavate external series gap lightning arrester, and discharging gap is stable fixing.Can be good at carrying out overvoltage protection.
Accompanying drawing explanation
Fig. 1 is the working state figure of 10kV system insulation overhead transmission line straight line pole clavate external series gap lightning arrester.
Fig. 2 is the front view of lightning arrester supporting plate.
Fig. 3 is the vertical view of cross comprise rod type electrodes.
In figure 1 is the insulating barrier wire (upper discharge electrode) be stripped, and 2 is cross clavate discharge electrode (lower discharge electrodes), and 3 is discharge electrode connecting bolts, 4 is lightning arrester bodies, and 5 is lightning arrester mounting panels, and 6 is lightning arrester supporting plates, 6a is installing hole, and 7 is insulated conductors, and 8 is pillar line insulators.
Embodiment
As shown in drawings, 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, its structure is that insulated conductor 7 is supported by the pillar line insulator 8 be fixed in pole arm, described insulated conductor 7 there is the insulating barrier wire 1 be stripped, lightning arrester body 4 is fixedly mounted on lightning arrester mounting panel 5, this lightning arrester mounting panel 5 is fixedly connected with lightning arrester supporting plate 6, described in form discharging gap between the insulating barrier wire 1 that is stripped and the cross clavate discharge electrode 2 on lightning arrester body 4 top.
External series gap is formed between described cross clavate discharge electrode 2 and the insulating barrier wire 1 that is stripped.
Construction bolt hole on described lightning arrester mounting panel 5 adopts long trough structure, and lightning arrester supporting plate 6 is provided with two installing holes.
In the market existing product due to gap be unfixed, product when mounted gap size to control difficulty large, simultaneously because insulator multiple in system uses simultaneously, the height of insulator is inconsistent, adopts adjustable installing hole to adapt to different insulators.The penetrating cable clamp that original lightning arrester and wire are linked is too complicated, and difficulty of construction is large.
This product is structurally effectively the simplest and the most direct.Upper electrode only needs to peel off a bit of insulating barrier, convenient and simple.What lower electrode adopted is cross comprise rod type electrodes, can effectively ensure the solid and reliable of clearance distance.Distance 55-60mm between cross external series gap and wire electrical discharge electrode, on wire point of discharge be positioned at above lightning arrester cross discharge electrode, shelves 30mm place, fair line road.The different installing hole coarse adjustment clearance distance of insulator that this product is different according to circuit.Adopt the more former lightning protection component installation effectiveness of this product to improve 2 times, in-site installation facilitates simple and direct.
When transmission line due to thunderbolt produce very amplitude overvoltage time, if do not have lightning arrester, when flashover voltage higher than support wire insulator of the Overvoltage Amplitude of wire, insulator is flashover over the ground.As occur two-phase simultaneously flashover time, will phase fault be caused.The amplitude of short circuit of system is very high, and arc temperature is high instantaneously, causes wire to fuse.When lightning arrester is attempted by insulator, if produce lightning overvoltage, first air gap punctures, and now lightning arrester starts conducting, and the energy of release lightning overvoltage, the nonlinear effect of the volt-ampere curve due to lightning arrester, limits the voltage magnitude at lightning arrester two ends.This amplitude is far smaller than the flashover voltage of insulator in parallel, protects insulator and flashover does not occur, and simultaneously lightning current flows through rear lightning arrester and returns to high-impedance state very soon, blocks power frequency continued flow.Lightning stroke flashover tripping operation and wire fusing can not be there is.
Claims (4)
1.10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester, insulated conductor (7) is supported by the pillar line insulator (8) be fixed in pole arm, it is characterized in that: described insulated conductor (7) has the insulating barrier wire (1) be stripped, lightning arrester body (4) is fixedly mounted on lightning arrester mounting panel (5), this lightning arrester mounting panel (5) is fixedly connected with lightning arrester supporting plate (6), described in form discharging gap between the insulating barrier wire (1) that is stripped and the cross clavate discharge electrode (2) on lightning arrester body (4) top.
2. according to the cross clavate external series gap lightning arrester of the 10kV insulated overhead line straight line pole described in claim 1, it is characterized in that: between described cross clavate discharge electrode (2) and the insulating barrier wire that is stripped, form external series gap.
3. according to the cross clavate external series gap lightning arrester of the 10kV insulated overhead line straight line pole described in claim 1, it is characterized in that: the construction bolt hole on described lightning arrester mounting panel (5) adopts long trough structure, and lightning arrester supporting plate (6) is provided with two installing holes.
4., according to the cross clavate external series gap lightning arrester of the 10kV insulated overhead line straight line pole described in claim 1, it is characterized in that: the distance between described cross clavate external series gap and wire electrical discharge electrode is 55-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047507.2U CN204376194U (en) | 2015-01-23 | 2015-01-23 | 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047507.2U CN204376194U (en) | 2015-01-23 | 2015-01-23 | 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376194U true CN204376194U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047507.2U Expired - Fee Related CN204376194U (en) | 2015-01-23 | 2015-01-23 | 10kV insulated overhead line straight line pole cross clavate external series gap lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947097A (en) * | 2017-12-06 | 2018-04-20 | 国家电网公司 | A kind of 10kV suspended insulated guide wires with the anti-lightning strike broken string of shielded layer |
| CN113358000A (en) * | 2021-06-17 | 2021-09-07 | 广东电网有限责任公司 | Air gap measuring method of gap arrester |
-
2015
- 2015-01-23 CN CN201520047507.2U patent/CN204376194U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947097A (en) * | 2017-12-06 | 2018-04-20 | 国家电网公司 | A kind of 10kV suspended insulated guide wires with the anti-lightning strike broken string of shielded layer |
| CN113358000A (en) * | 2021-06-17 | 2021-09-07 | 广东电网有限责任公司 | Air gap measuring method of gap arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 |