CN103595005B - Insulator type lightning arrester - Google Patents
Insulator type lightning arrester Download PDFInfo
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- CN103595005B CN103595005B CN201310653962.2A CN201310653962A CN103595005B CN 103595005 B CN103595005 B CN 103595005B CN 201310653962 A CN201310653962 A CN 201310653962A CN 103595005 B CN103595005 B CN 103595005B
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Abstract
The invention relates to the technical field of power transmission equipment, and discloses an insulator type lightning arrester. The insulator type lightning arrester comprises an iron tower side fitting, a core rod, a wire side fitting and a hollow lightning arrester body with a gap. The iron tower side fitting and the wire side fitting are connected to the two ends of the core rod in a pressed mode respectively, and the core rod is sleeved with the hollow lightning arrester body with the gap. According to the insulator type lightning arrester, the functions of insulators and lightning arresters are achieved at the same time through the structure height equivalent to common insulator bunches, and the good equipment size and the good performance index are achieved.
Description
Technical field
The present invention relates to technical field of power transmission equipment, particularly to a kind of insulator style spark gap.
Background technology
Transmission line of electricity especially ultra-high-tension power transmission line should be noted a lot of problems during built on stilts laying, wherein normal
See be exactly line support, line insulation and overvoltage protection the problems such as.For solving these problems, using absolutely in prior art
Edge subsolution is determined and is supported wire and prevent electric current from returning the problem on ground, adopts spark gap to protect transmission line of electricity and electrical equipment to exempt from greatly
Gas overvoltage（It is usually and be struck by lightning）Damage with switching overvoltage.
Because the application target of two kinds of devices is different, its performance indications of interest has larger difference.Wherein, insulate
Son is mainly in bracing frame（As line bar or steel tower etc.）To provide support, its one end hangs on shaft tower upper stretching circuit, the other end
Hang wire；Insulator needs to undertake larger mechanical load and have higher wanting to tensile strength, anti-crawl agentdefiection and fatigue resistance
Ask, obviously also need to good insulating properties simultaneously.And spark gap is then as its name suggests, mainly over-voltage sets to power transmission and transformation
Standby infringement, it is in high-impedance state, when suffering from overvoltage mainly using metal oxide resistance under normal working voltage
In the conduction state, discharge overvoltage energy；The practical structures of spark gap have one to overcoat insulation height, discharging gap distance etc.
Provisioning request, equipment itself build is larger, its structural-mechanical property is not good, bearing capacity is limited, and the creep age distance of spark gap shows
The insulating properties that circuit so can not be met requires.
Based on above-mentioned difference, in prior art, above two device is two kinds of independent apparatus assemblies, and insulator is as defeated
The necessary assembly that electric line makes somebody a mere figurehead laying is commonly used on shaft tower, and spark gap is then arranged on shaft tower as affiliated facility,
Both are generally used in parallel.But, by the way of prior art, because spark gap weight and volume are larger, not only make circuit
Increase with the load of steel tower, line facility complicates, and because steel tower cross-arm position is limited, the installation of spark gap is extremely not
Just, at steel tower cross-arm, equipment is more also can make troubles to work such as livewire work.Further, since two kinds of autonomous device parallel connections make
With it is clear that making devices in system sum be multiplied, causing system failure rate to significantly increase so that running in transmission line of electricity use
Maintenance workload is big.
Although prior art also has a small amount of research hope to realize, and insulator is integrated with spark gap, its actual effect will
The pressure performance of insulator is slightly improve, or simply sacrificing service life in the case of simply sacrificing build and stability
In the case of slightly improve the bearing capacity of spark gap, just only as insulator or spark gap under somewhat harsh environment
Use, the function of both cannot be provided simultaneously with completely.Most typically ground, the common fault of existing research has：Two ends gold utensil and plug
Connect is usually to adopt mucilage binding or screw connection manner, because the problem of the aspects such as connected mode, material is it is impossible to bear powerful drawing
Stretch load, sealing is also seriously tested it is impossible to the function of being truly realized existing insulator has the function of spark gap again；This peripheral hardware
Standby structure height is far longer than common line insulator.
Content of the invention
For the drawbacks described above of prior art, the technical problem to be solved is as how less equipment simultaneously
The ability of support, insulation and overvoltage protection is provided for transmission line of electricity.
For solving the above problems, the invention provides a kind of insulator style spark gap, including：Steel tower side gold utensil, plug, lead
Line side gold utensil and the arrester with gaps of hollow；Wherein,
Described steel tower side gold utensil and described side of wire gold utensil are crimped on the two ends of described plug respectively；
The arrester with gaps of described hollow is sleeved on outside described plug.
Preferably, the arrester with gaps of described hollow includes：Valve block, the first insulating cylinder, target, the second insulating cylinder
And high-field electrode；Wherein,
Outside described valve block and described second insulating cylinder are sleeved on described plug and coat entirely described plug position, described
, near steel tower side, described second insulating cylinder is near side of wire for valve block；
Described first insulating cylinder at least covers the outer surface of described valve block；
Described target and described high-field electrode are correspondingly arranged, and described target is arranged on described valve block and described
The joint of two insulating cylinders simultaneously flexes outward, and described high-field electrode is simultaneously outwards arranged on the side of wire end of described second insulating cylinder
Stretch.
Preferably, each assembly of the arrester with gaps of described hollow and described plug global formation, or described hollow
Sequentially it is arranged on outside described plug after arrester with gaps each assembly independence molding.
Preferably, described insulator style spark gap also includes：Core bar jacket；Wherein, described in described core bar jacket is arranged on
Between plug and the arrester with gaps of hollow, and described core bar jacket covers the outer surface of described plug.
Preferably, described insulator style spark gap also includes：Insulating cylinder is cladded with thing, and it is coated on the first insulating cylinder and second
The outside of insulating cylinder.
Preferably, described insulator style spark gap also includes：Be filled between described core bar jacket and described valve block, described
The embedding processed material of the gap between valve block and described first insulating cylinder, between described plug and described second insulating cylinder, institute
State embedding processed material and adopt insulant.
Preferably, described insulator style spark gap also includes：End seal and release structure for pressure and end sealing mechanism；
Wherein, described end seal and release structure for pressure are arranged on the steel tower side end of described plug, and described end sealing mechanism sets
Put the wire side end in described plug.
Preferably, described valve block adopts loop configuration or in the form of multicolumn parallel connection.
Preferably, described first insulating cylinder only covers the outer surface of described valve block, and described first insulating cylinder only covers described
The outer surface of valve block, described first insulating cylinder and described second insulating cylinder are split or global formation；Described second is exhausted
The thickness of edge cylinder is suitable with described valve block and described first insulation barrel thickness sum, or is much smaller than its thickness sum.
Preferably, the top of described target and/or described high-field electrode is annular, open annular, semi-circular, spherical
Or rod, the cross sectional shape of described electrode is circular, oval or flat annular.
Preferably, described valve block is metal oxide valve block or backing metal.
Preferably, when global formation, the part of described global formation and described steel tower side gold utensil or described side of wire gold
Tool is connected by flange to be installed.
Compared with prior art, the insulator style spark gap that technical scheme is provided with common insulator chain
Suitable structure height is simultaneously achieved the function of insulator and spark gap, has preferably equipment size and performance indications, bright
Show and optimize system mounting means, decrease equipment sum, effectively reduce system failure rate.
Brief description
Fig. 1 is the structural representation of insulator style spark gap in a preferred embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is to implement the better embodiment of the present invention, and described description is so that the present invention to be described
Rule for the purpose of, be not limited to the scope of the present invention.Protection scope of the present invention should be with claim institute circle
The person of determining is defined, and based on the embodiment in the present invention, those of ordinary skill in the art are not on the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of protection of the invention.
At present, in ultra-high-tension power transmission line, line insulator is usually porcelain insulating substring, glass insulator strings or composite insulation
Son.Wherein porcelain insulating substring and glass insulator strings are all in series by the insulator of multi-disc porcelain or glass material, and synthesis is absolutely
Edge is the insulator being manufactured using organic polymer polymeric insulating material.Composite insulator is by plug（Interior insulation）, full skirt shield
Set（External insulation）, end metal fitting and adnexa（Grading ring）Composition.Plug impregnates the glass along diameter parallel arrangement in a large number by resin
Fiber and formed, tensile strength be higher than 1100Mpa, be 3～5 times of high strength china, there is good anti-crawl agentdefiection and fatigue resistance, hold
Mechanical load by composite insulator.Umbrella sheath is made up of macromolecule organic composite material and is attached to mandrel outer, in protection absolutely
Edge simultaneously provides enough creep age distances.End metal fitting is made up and galvanizing of malleable cast iron or the above material of forged steel, with plug even
It is connected together, bear and transmit whole mechanical loads.Grading ring is made up of aluminum alloy materials, and uniform electric field is distributed, and prevents high pressure
Electric field acceleration composite insulator end is aging.Composite insulator on transmission line of electricity, mainly plug bear tensile load.
Above-mentioned insulator in normal working conditions, can play the effect supporting wire and insulation, but generally in transmission of electricity
Circuit is struck by lightning or insulator all can occur flashover during switching overvoltage, that is, when setting that overvoltage exceedes that insulator can bear
During evaluation, insulator by electric arc burn, or even will make porcelain insulator glass insulator be wounded to smash.I.e. existing insulator is not
There is lightning protection effect, it loses insulating properties and leads to affect supply of electric power during transmission line of electricity tripping operation because electric discharge damages, and
The productive life that power failure will give people brings very big inconvenience, causes larger economic loss, changes the insulator damaging and also can
Expend larger manpower, material resources and financial resources.
Leakage conductor can be divided into surge arresters with porcelain housings and polymeric housed metal oxide arrester by lagging material, by version at present
Gapless arrestyer and arrester with gaps can be divided into.The valve block of gapless arrestyer bears working voltage for a long time, and chargeability is high,
There is easy problem of aging in valve block.Arrester with gaps can be divided into pure the air gap again, the ring interannular being supported by composite insulator
Gap.Arrester with gaps body part does not undertake voltage substantially it is not necessary to worry the aging of it.At present, leakage conductor pendency peace
During dress, specified tensile load is usually 15 times of its deadweight, and this tensile load is far smaller than the specified tensile load of insulator；And
Widely used arrester with gaps structure height (general 1780～1954mm) is far longer than the structure height of insulator (probably
1022～1314mm).Existing leakage conductor can not bear the powerful tensile load of wire for a long time it is impossible to play support wire
Effect, simultaneously its build and insulating properties also limit that it is integrated with insulator, can only be by the way of parallel connection and insulation
Son is installed together.
In order that device can have the function of insulator and spark gap simultaneously, mainly right in embodiments of the invention
Spark gap be greatly improved so as to can meet certain requirements pulling force, the parameter such as intensity, meet the characteristic of insulator, such as machine
The electrical characteristics such as electrodisintegration load, tensile strength, ageing resistance, fatigue crack-resistant, antifouling property, creep age distance, are had
There is the spark gap of circuit Insulators Used（Abbreviation insulator style spark gap）.In the implementation process of the present invention, develop insulator
The technical problem that formula spark gap first has to solve has：
1st, the mechanical performance design of spark gap, even if spark gap can play support wire, bears the function of pulling force.This
It is intended to the great difficult problem solving.At present, insulator and spark gap are two independent equipment, have different functions, in transmission of electricity
Used in parallel on circuit.If make spark gap equipment have the function of insulator simultaneously, it is necessary for improving the mechanical performance of spark gap,
It is made to meet the function of insulator.
2nd, insulator style spark gap structure height is suitable with common line insulator, and that is, structure height can not be too big, with
Just original insulator can easily be replaced in actual applications.This is intended to another great difficult problem solving.At present, existing
The structure height having 110kV arrester with gaps is far longer than the structure height of 110kV insulator.Therefore spark gap to ensured
On the premise of lightning protection function, structure height is shortened to suitable with insulator, and improve its mechanical performance and can play
Support the function of wire.The composite sheath insulation height of spark gap, discharging gap distance, have been by theoretical and experimental study
And practical application accreditation, if wanting to shorten the overall structure height of spark gap, need to study between composite sheath insulation height, electric discharge
From redesigning internal valve block composition, electrode structure and installation site mode etc., there is great difficulty in stand-off distance.
3rd, the insulating properties design of spark gap, even if the insulating properties such as creep age distance of spark gap disclosure satisfy that line insulation
The requirement of son.
4th, in the case that spark gap does not lose lightning protection characteristic, when meeting general operation, the characteristic of insulator, attacks in thunder and lightning
During shaft tower, spark gap can discharge in advance, does not damage insulation and the mechanical performance of spark gap while electric discharge.
5th, realize lightning protection function and can also realize insulator electric property and mechanical performance, meet the needs of installation simultaneously,
Volume adequacy to be met, lightweight, suitable large area, convenience, simple installation.
Wherein the first two problem is that emphasis needs to solve, and is also that prior art does not commonly obtain asking of effectively solving approach
Topic, is the content that following preferred implementations focus on to realize.
First, in an embodiment of the present invention, the overall structure height of insulator style spark gap and conventional line insulator
Quite, and in an equipment it is simultaneously achieved the function of insulator and spark gap.This isolator lightning arrester is held by middle plug
By main mechanical force, two ends gold utensil is directly crimped on plug, the same with the mid portion structure of existing insulator, bear machine
Tool load, this structure technology is ripe, mechanically stressed reliability.Specifically, the insulator style spark gap in the present invention includes：Steel tower side
Gold utensil, the arrester with gaps of plug, side of wire gold utensil and hollow；Wherein, described steel tower side gold utensil and described side of wire gold utensil
It is crimped on respectively on the two ends of described plug；The arrester with gaps of described hollow is sleeved on outside described plug.
Additionally, the body of common arrester with gaps is split type with inter space device in this area, during use, pass through bulb
The mode such as ball-and-socket or flange is installed together.The clearance electrode of insulator style spark gap and basis in the preferred embodiments of the present invention
Body is an entirety.
In actual applications, the overall structure height of the insulator style spark gap of the present invention with 110kV common insulator chain
Quite, can conveniently replace existing line insulator during application, make insulator style spark gap be truly realized insulator and spark gap
Function same in one apparatus.Further below the preferred implementation in accompanying drawing is described as follows：
Referring to Fig. 1, in one embodiment of the invention, insulator style spark gap includes：Steel tower side gold utensil 1, plug 3,
Core bar jacket 4（Can omit）, valve block 5（At point-like filling in Fig. 1）, the first insulating cylinder 6, target 7, the second insulating cylinder 8（Figure
At trellis filling in 1）, high-field electrode 10 and side of wire gold utensil 11；Wherein, steel tower side gold utensil 1 and side of wire gold utensil 11 are pressed respectively
It is connected on the two ends of plug 3, core bar jacket 4 covers the outer surface of plug 3；Valve block 5 and the second insulating cylinder 8 are sleeved on core bar jacket
Outside 4 and coat whole plug position, valve block 5 is near steel tower side（I.e. gold utensil 1 side, that is, ground side）, the second insulating cylinder 8 is close
Side of wire（Gold utensil 11 side, that is, high-pressure side）, the first insulating cylinder 6 at least covers outer surface, target 7 and the high pressure of valve block 5
Electrode 10 is correspondingly arranged, and target 7 is arranged on the joint of valve block 5 and the second insulating cylinder 8 and flexes outward, high-field electrode 10
It is arranged on the side of wire end of the second insulating cylinder 8 and flex outward.
Using aforesaid way, steel tower side gold utensil 1, plug 3, core bar jacket 4 and side of wire gold utensil 11 define and conventional junction
The similar core rod of insulator of structure, mainly bears mechanical load by plug 3；Wherein, core bar jacket 4 not necessarily condition, in plug 3
It is aging in order to protect plug 3 to keep away from moisture that outside covers core bar jacket 4.As long as but in fact in lightning arrester body and plug 3
After the proper treatment of junction（Such as evacuation, perfusion, sealing etc.）, plug 3 typically will not make moist, so core bar jacket 4 also may be used
With omit without.Valve block 5, the first insulating cylinder 6, target 7, the second insulating cylinder 8 and high-field electrode 10 constitute the interband of hollow
Gap lightning arrester body, outside being sleeved on above-mentioned core rod of insulator and discharging gap is external, overvoltage protection is provided and is not subject to
Mechanical load.It is simultaneously achieved with the structure height suitable with the common insulator chain of 110kV by this above embodiment of the present invention
The function of insulator and spark gap, and both sides function mutually no affects substantially, has preferably equipment size and performance indications,
Substantially optimize system mounting means, decrease equipment sum, effectively reduce system failure rate.
In the preferred embodiment in figure 1, described insulator style spark gap also includes：Insulating cylinder is cladded with thing 12, and it is coated on
First insulating cylinder 6 and the outside of the second insulating cylinder 8.Insulating cylinder be cladded with thing 12 be preferably insulation full skirt and/or sheath, for for
Whole device provides external insulation, and it can be integrally formed with spark gap main body.Additionally, described insulator style spark gap also can enter one
Step includes：It is filled in the gap between core rod of insulator and spark gap（Such as between core bar jacket and valve block, valve block and first
Between insulating cylinder, between plug and the second insulating cylinder etc.）Embedding processed material 13, it adopts insulant, such as silicone rubber etc., uses
In the interior insulation performance guaranteeing core rod of insulator.Correspondingly, described insulator style spark gap may also include：End seal and pressure
Release structure 2 and end sealing mechanism 9；Wherein, end seal and release structure for pressure 2 are arranged on the steel tower side end of plug 3,
End sealing mechanism 9 is arranged on the wire side end of plug 3, in order to guarantee the effect of above-mentioned embedding；The end of steel tower side end
Sealing and the pressure that can also bear spark gap middle valve plate 5 further of release structure for pressure 2 are discharged on steel tower side gold utensil 1,
Its life-span is extended with the pressure mitigating spark gap.
In some other preferred embodiments of the present invention, plug 3 preferably employs epoxy plug, more preferably from insulation
Using the glass fibre leading-drawing rod through long-term test on son.Additionally, steel tower side gold utensil 1 is preferably ball-and-socket, side of wire gold
Tool 11 is preferably bulb；This as the two ends gold utensil form of common composite insulator so that assembly of the invention with commonly multiple
Close insulator mounting means identical, can directly substitute insulator and install.Specifically, using pendency mounting means, ball-and-socket gold utensil 1 leads to
Cross ball-eye, U-shaped ring etc. to be connected with steel tower cross-arm hanging point, bulb gold utensil 11 is connected with wire clamp.
Valve block 5 is preferably high gradient metal oxide valve block or backing metal；Valve block number of parameters or backing metal cloth
Put and determined according to correlation computations.Valve block 5 can adopt loop configuration（I.e. global formation sleeve pipe）, it would however also be possible to employ multicolumn parallel connection
Form（I.e. multiple column-shape strip assembly packaged tubes）.It is highly preferred that valve block 5 adopts the valve block that voltage gradient is more than 250V/mm.
Wherein, the first insulating cylinder and the second insulating cylinder are split or global formation；The thickness of the second insulating cylinder with
Valve block and the first insulation barrel thickness sum quite, or are much smaller than its thickness sum.Well-balanced for ensureing equipment global shape, two is exhausted
Edge cylinder has two kinds of implementations：The barrel of the first insulating cylinder 6 is relatively thin, only coats the outer surface of valve block 5；The cylinder of the second insulating cylinder 8
Wall is thicker, is equivalent to valve block 5 and the thickness sum of the first insulating cylinder 6.Or, the first insulating cylinder 6 coats valve block 5 and second simultaneously
The outer surface of insulating cylinder 8, now the barrel of the second insulating cylinder 8 is suitable with valve block 5 thickness, and now the second insulating cylinder 8 is preferably
Cross-over block.
Lightning arrester body is near on high-tension side part（I.e. part between two electrodes）It is insulation, this can be partly
With spark gap one or split.If one, centre can be supported with single insulating part inside it
Target 7 is it is also possible to directly produce fixed station inside the housing.Preferably, the root of two electrodes can be directly by insulating
Cylinder is wrapped up or is installed using fixed station.Two electrodes（Or at least one）Top be annular electrode, its cross sectional shape be circular, ellipse
Circle or flat annular.If it is nervous that equipment overall structure highly implements comparison, target 7 is in addition to annular electrode
Remainder can be coated with insulating barrier；Or, target can also once be drawn in inflection again, now must be covered with insulating barrier.
Each assembly of lightning arrester body part can be global formation, after the completion of be arranged on outside plug 3；Can also be
Install one by one outside plug 3.Lightning arrester body part is at least fixed with the gold utensil of crimping on plug at one end.With spark gap originally
It is configured with, on the fixing plug gold utensil at that end of body, the flange connecting with spark gap, this flange can be and gold utensil one,
Can be follow-up making；If follow-up make it is preferable that this flange should be noted sealing and isoelectric level, and thunderbolt
When through-flow.
With respect to prior art, technical scheme provides a kind of isolator lightning arrester, and it has following obvious
Advantage：
1st, insulator and spark gap are relatively independent and reasonably fit together, and so that insulator style arrester device is really done
Same in one apparatus to the function of insulator and spark gap, optimize system mounting means, decrease equipment sum, effectively
Reduce system failure rate.
2nd, the main tensile load being born wire by middle plug 3, spark gap function is realized by other assemblies, and not shadow
Ring the stress of plug, ensure that the service life of respective assembly in the way of substantially non-interference.
3rd, the spark gap of hollow sleeve and the mode such as discharging gap is external makes the overall structure height of device and 110kV general
Logical insulator chain quite, can conveniently replace existing line insulator during application.
Although above in association with preferred embodiment, invention has been described, it should be appreciated by those skilled in the art,
Method and system of the present invention is not limited to the embodiment described in specific embodiment, is wanting without departing substantially from by appended right
In the case of seeking the spirit and scope of the invention that book limits, can various modification can be adapted to the present invention, increase and replace.
Claims (11)
1. a kind of insulator style spark gap is it is characterised in that include：Steel tower side gold utensil, the band of plug, side of wire gold utensil and hollow
Gap spark gap；Wherein,
Described steel tower side gold utensil and described side of wire gold utensil are crimped on the two ends of described plug respectively；
The arrester with gaps of described hollow is sleeved on outside described plug, and the arrester with gaps of described hollow includes：Valve block,
First insulating cylinder, target, the second insulating cylinder and high-field electrode；Described valve block and described second insulating cylinder are sleeved on described core
Rod outside and coat entirely described plug position, near steel tower side, described second insulating cylinder is near side of wire for described valve block；Described
First insulating cylinder at least covers the outer surface of described valve block；Described target and described high-field electrode are correspondingly arranged, described in
Between electrode be arranged on the joint of described valve block and described second insulating cylinder and flex outward, described high-field electrode is arranged on described
The side of wire end of the second insulating cylinder simultaneously flexes outward；
Described insulator style spark gap entirety structure height is suitable with the structure height of common line insulator 1022～1314mm.
2. insulator style spark gap according to claim 1 is it is characterised in that the arrester with gaps each group of described hollow
Sequentially it is arranged on described after part and described plug global formation, or arrester with gaps each assembly independence molding of described hollow
Outside plug.
3. insulator style spark gap according to claim 1 is it is characterised in that described insulator style spark gap also includes：
Core bar jacket；Wherein,
Described core bar jacket is arranged between described plug and the arrester with gaps of hollow, and the covering of described core bar jacket is described
The outer surface of plug.
4. insulator style spark gap according to claim 1 is it is characterised in that described insulator style spark gap also includes：
Insulating cylinder is cladded with thing, and it is coated on the first insulating cylinder and the outside of the second insulating cylinder.
5. insulator style spark gap according to claim 3 is it is characterised in that described insulator style spark gap also includes：
Be filled between described core bar jacket and described valve block, between described valve block and described first insulating cylinder, described plug and described
The embedding processed material of the gap between the second insulating cylinder, described embedding processed material adopts insulant.
6. insulator style spark gap according to claim 1 is it is characterised in that described insulator style spark gap also includes：
End seal and release structure for pressure and end sealing mechanism；Wherein, described end seal and release structure for pressure are arranged on institute
State the steel tower side end of plug, described end sealing mechanism is arranged on the wire side end of described plug.
7. insulator style spark gap according to claim 1 is it is characterised in that described valve block adopts loop configuration or employing
Multicolumn form in parallel.
8. insulator style spark gap according to claim 1 is it is characterised in that described first insulating cylinder only covers described valve
The outer surface of piece, described first insulating cylinder and described second insulating cylinder are split or global formation；Described second insulation
The thickness of cylinder is suitable with described valve block and described first insulation barrel thickness sum.
9. insulator style spark gap according to claim 1 is it is characterised in that described target and/or described high pressure
The top of electrode is annular, open annular, spherical or rod, and the cross sectional shape of described electrode is circular, oval or flat ring
Shape.
10. insulator style spark gap according to claim 1 is it is characterised in that described valve block is metal oxide valve block
Or backing metal.
11. insulator style spark gaps according to claim 2 it is characterised in that when global formation, described global formation
Part with described steel tower side gold utensil or described side of wire gold utensil, installation is connected by flange.
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| CN201310653962.2A CN103595005B (en) | 2013-12-05 | 2013-12-05 | Insulator type lightning arrester |
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| CN201310653962.2A CN103595005B (en) | 2013-12-05 | 2013-12-05 | Insulator type lightning arrester |
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| CN103595005A CN103595005A (en) | 2014-02-19 |
| CN103595005B true CN103595005B (en) | 2017-02-08 |
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| CN201310653962.2A Expired - Fee Related CN103595005B (en) | 2013-12-05 | 2013-12-05 | Insulator type lightning arrester |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205899B (en) * | 2016-07-15 | 2017-07-28 | 江苏远航电缆附件有限公司 | A kind of band gap compound needle type insulator |
| CN107301907B (en) * | 2017-07-19 | 2023-01-20 | 国网湖南省电力公司 | Anti-icing lightning protection insulator |
| CN108695029A (en) * | 2018-04-28 | 2018-10-23 | 江苏神马电力股份有限公司 | Insulator and the disconnecting switch for using the insulator |
| CN109914899A (en) * | 2019-03-15 | 2019-06-21 | 江苏神马电力股份有限公司 | Cross-arm and power transmission rod |
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| US4467387A (en) * | 1982-09-30 | 1984-08-21 | General Electric Company | Combination strut insulator and lightning arrester |
| CN2297778Y (en) * | 1997-02-04 | 1998-11-18 | 上海浦东新区市东电力技术开发服务中心 | Column synthetic insulation metal oxide arrester |
| CN2438213Y (en) * | 2000-09-08 | 2001-07-04 | 北京中能瑞斯特电气有限责任公司 | Composite insulation zinc oxide arrester for lightning protection of line |
| CN2845245Y (en) * | 2005-09-29 | 2006-12-06 | 刘晓强 | Multifunctional external series gap lightning arrester |
| CN201440352U (en) * | 2009-03-11 | 2010-04-21 | 中能电力科技开发有限公司 | AC transmission line composite outer sleeve metal oxide arrester with series gaps |
| CN103606425A (en) * | 2013-12-05 | 2014-02-26 | 国家电网公司 | Lightning arrester with performance of line insulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142258Y (en) * | 2007-07-06 | 2008-10-29 | 固力发电气有限公司 | Suspension type arrester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4467387A (en) * | 1982-09-30 | 1984-08-21 | General Electric Company | Combination strut insulator and lightning arrester |
| CN2297778Y (en) * | 1997-02-04 | 1998-11-18 | 上海浦东新区市东电力技术开发服务中心 | Column synthetic insulation metal oxide arrester |
| CN2438213Y (en) * | 2000-09-08 | 2001-07-04 | 北京中能瑞斯特电气有限责任公司 | Composite insulation zinc oxide arrester for lightning protection of line |
| CN2845245Y (en) * | 2005-09-29 | 2006-12-06 | 刘晓强 | Multifunctional external series gap lightning arrester |
| CN201440352U (en) * | 2009-03-11 | 2010-04-21 | 中能电力科技开发有限公司 | AC transmission line composite outer sleeve metal oxide arrester with series gaps |
| CN103606425A (en) * | 2013-12-05 | 2014-02-26 | 国家电网公司 | Lightning arrester with performance of line insulator |
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| Publication number | Publication date |
|---|---|
| CN103595005A (en) | 2014-02-19 |
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