CN109273988A - Dish type Multiple level arc extinguishing lightning protection device based on double hemisphere T-type ceramic discharge tubes - Google Patents
Dish type Multiple level arc extinguishing lightning protection device based on double hemisphere T-type ceramic discharge tubes Download PDFInfo
- Publication number
- CN109273988A CN109273988A CN201811160866.3A CN201811160866A CN109273988A CN 109273988 A CN109273988 A CN 109273988A CN 201811160866 A CN201811160866 A CN 201811160866A CN 109273988 A CN109273988 A CN 109273988A
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- Prior art keywords
- gap
- electrode
- spheric
- type ceramic
- protection device
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Classifications
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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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
-
- 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
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/08—Means for extinguishing arc using flow of arc-extinguishing fluid
- H01T1/10—Means for extinguishing arc using flow of arc-extinguishing fluid with extinguishing fluid evolved from solid material by heat of arc
-
- 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
- H01T1/00—Details of spark gaps
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
- H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
-
- 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
- H01T1/00—Details of spark gaps
- H01T1/24—Selection of materials for electrodes
-
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a kind of dish type Multiple level arc extinguishing lightning protection device based on double hemisphere T-type ceramic discharge tubes, is related to a kind of arrester of overhead transmission line applied to 10KV ratings above.The structure of the present apparatus is: composing in series gap in arcing chamber string by 6-10 double hemisphere T-type ceramic discharge tubes, is in segment arc；Orthodrome gap string is successively staggeredly composed in series by 6-8 gap in arcing chamber string and 5-7 external series gap spheric electrode, string head and the tail are connected separately with the upper spheric electrode and lower spheric electrode of main gap spheric electrode in orthodrome gap.Lightning current is elongated and draws and attenuates and spray by the present invention, makes arc extinction, strikes back probability caused by reducing because of lightning stroke lightning conducter；Tolerance lightning surge ability is strong, and discharge capacity is big, highly-safe；Discharging gap size identical property is good, and impulsive discharge, power-frequency discharge are stablized；Structure is simple, while the multiple external series gaps being arranged, and can greatly improve dielectric insulation resume speed after device lightning stroke movement, not restrike after arc extinction.
Description
Technical field
The present invention relates to a kind of arresters of overhead transmission line applied to 10KV ratings above, more particularly to one kind is based on double
The dish type Multiple level arc extinguishing lightning protection device of hemisphere T-type ceramic discharge tube, can direct striking thunder prevention.
Background technique
Thunder and lightning is the key factor for influencing power transmission line safety, occupies the first place of line fault tripping for a long time, is atmosphere
Movable natural process, it is also uncontrollable so far.Lightning stroke will cause overvoltage, may cause to damage to insulator, power transmission line；Draw
Play insulator arc-over electric discharge.Protection generally is realized using line thunder protection device is installed additional in overhead transmission line to this power department.At present
The leakage conductor used on overhead transmission line mainly has: oxidation zinc-type arrester, portable protective gaps arrester and novel Multiple level
Arrester.Zinc-type arrester moisture-sensitive, easy to aging, high failure rate are aoxidized, and repair and maintenance is difficult；Portable protective gaps arrester is in thunder
It is unable to arc extinguishing after hitting protection act, trip line-outage contingency caused by not can effectively solve because of lightning stroke；Novel Multiple level arrester
Mostly use single metal ball shaped electrode, metal ball shaped electrode easily melt through the multiple ablation of power frequency arc variation cause it is short between gap
It connects, and gap in arcing chamber string is in more closed space, power frequency continued flow is after zero passage blow-out, and dielectric insulation is not easy to restore, and electric arc is easy
It restrikes.Structure is complicated simultaneously, production is difficult, and homogeneity of product is poor, and power-frequency discharge, impulsive discharge are unstable.
Summary of the invention
The object of the invention is that overcoming shortcoming and defect existing for existing line arrester, provide a kind of based on double half
The dish type Multiple level arc extinguishing lightning protection device of ball T-type ceramic discharge tube.
The object of the present invention is achieved like this:
The present apparatus includes main gap spheric electrode, double hemisphere T-type ceramic discharge tubes, external series gap spheric electrode, inner insulating layer and outer
Insulating layer；
Its position and connection relationship are:
Gap in arcing chamber string is composed in series by a double hemisphere T-type ceramic discharge tubes, is in segment arc；
One orthodrome gap is successively staggeredly composed in series by 6-8 gap in arcing chamber string and 5-7 external series gap spheric electrode, in great circle
Arc gap head and the tail are connected separately with the upper spheric electrode and lower spheric electrode of main gap spheric electrode；
Inner insulating layer is uniformly enclosed with outside orthodrome gap；
External insulation layer is wrapped in inner insulating layer.
The present invention has following advantages and good effect:
It draws and attenuates and sprays 1. lightning current is elongated, make arc extinction, avoid the generation of phase fault, reduce lightning-arrest because being struck by lightning
Probability is struck back caused by line；
2. being resistant to, lightning surge ability is strong, and discharge capacity is big, highly-safe；
3. discharging gap size identical property is good, impulsive discharge, power-frequency discharge are stablized；
4. structure is simple, high reliablity, it is easy to produce in batches.
5. multiple external series gaps can greatly improve the speed of dielectric insulation recovery, make electric arc after the extinguishing of power frequency continued flow zero passage
It is not restriking.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention (main view)；
Fig. 2 is structural schematic diagram of the invention (top view)；
Fig. 3 is the structural schematic diagram of double hemisphere T-type ceramic discharge tubes 20.
In figure:
10-main gap spheric electrodes,
11-upper spheric electrodes, 12-lower spheric electrodes；
20-bis- hemisphere T-type ceramic discharge tubes；
21-T-type ceramic tubes,
211-hemi-spherical cavities, 212-hollow cylinders,
22-graphite, half ball electrode, 23-metal, half ball electrode；
30-external series gap spheric electrodes,
31-left spheric electrodes, 32-right spheric electrodes；
40-inner insulating layers；
50-external insulation layers；
A-gap in arcing chamber string, B-orthodrome gap string.
Specific embodiment
It is described in detail with reference to the accompanying drawings and examples:
One, the structure of device
1, overall
Such as Fig. 1,2, the present apparatus includes main gap spheric electrode 10, double hemisphere T-type ceramic discharge tubes 20, external series gap spheric electrode
30, inner insulating layer 40 and external insulation layer 50；
Its position and connection relationship are:
Gap in arcing chamber string A is composed in series by 6-10 double hemisphere T-type ceramic discharge tubes 20, is in segment arc；
One orthodrome gap B is successively staggeredly composed in series by 6-8 gap in arcing chamber string A and 5-7 external series gap spheric electrode 30,
B head and the tail in orthodrome gap are connected separately with the upper spheric electrode 11 and lower spheric electrode 12 of main gap spheric electrode 10；
Inner insulating layer 40 is uniformly enclosed with outside the B of orthodrome gap；
External insulation layer 50 is wrapped in inner insulating layer 40.
2, functional component
1) main gap spheric electrode 10
Such as Fig. 1,2, main gap spheric electrode 10 includes upper spheric electrode 11 and lower spheric electrode 12；
It is a kind of spheric conductor being process by stainless steel, spherical diameter is in 15~25mm.
Upper spheric electrode 11 and lower spheric electrode 12 are connected to the orthodrome gap two ends B, and effect is electric discharge
Input, output end.
2) double hemisphere T-type ceramic discharge tubes 20
Such as Fig. 1,3, double hemisphere T-type ceramic discharge tubes 20 include T-type ceramic tube 21, half ball electrode 22 of graphite and half ball electrode of metal
23；
Half ball electrode 23 of half ball electrode 22 of graphite and metal is respectively arranged in the cavity up and down of T-type ceramic tube 21；
The T-type ceramic tube 21 includes the hollow cylinder 212 and hemi-spherical cavities 211 of left and right connection, hemi-spherical cavities 211
15~19mm of diameter, 9~13mm of thickness；The inner and outer diameter of hollow cylinder 212 is 2.4~5mm, 5.6~9mm respectively；
The radius of half ball electrode 22 of graphite is 4~6mmm；
The radius of half ball electrode 23 of metal is 4~6mmm.
The end to end composition gap in arcing chamber string A of several double hemisphere T-type ceramic discharge tubes 20, effect is to crush electric arc
Extinguish.
3) external series gap spheric electrode 30
Such as Fig. 1, external series gap spheric electrode 30 includes left spheric electrode 31 and right spheric electrode 32；
It is a kind of spheric conductor that stainless steel is process, spherical diameter is in 15~25mm.
For external series gap spheric electrode 30 between two gap in arcing chamber string A, effect is to aid in arc extinguishing and after arc extinction
Dielectric insulation resume speed is improved, electric arc is made not restrike.
4) inner insulating layer 40
Inner insulating layer 40 is the enhancing nylon wrapping layer of a kind of resistance to electric arc and high temperature, by being molded or being molded, improves and produces
Product intensity and rigidity.
5) external insulation layer 50
External insulation layer 50 is a kind of silicon rubber wrapping layer, is in hub-like, by being molded or being molded, improves product weatherability
And dielectric level.
3, working mechanism of the invention:
When high-tension overhead line is by being struck by lightning, overvoltage is introduced by main gap spheric electrode 10, double hemisphere T-type ceramic discharge tubes
20 are punctured one by one, form discharge channel；Lightning current is released by the present apparatus into ground, while power-frequency voltage can be along this electric discharge
Channel generates power frequency continued flow；It can pass through when electric arc reaches the 2nd half ball electrode 22 of graphite by the 1st half ball electrode 22 of graphite
T-type ceramic tube 21, high-temperature electric arc, which encounters cooling 21 inner wall of T-type ceramic tube, at this time can be produced from expanded gas flow, and air-flow passes through T-type
The hollow cylinder 212 of ceramic tube 21 sprays, and powerful self-expanding airflow function stretches the length of electric arc in electric arc, while temperature
Reduction is conducive to arc extinction, and electric arc from the nozzle of hollow cylinder 212 sprays to form arc of quenching with air-flow, each double hemisphere T
The hollow cylinder 212 of type ceramic discharge tube 20 can all form a power-off, therefore multiple double formation of hemisphere T-type ceramic discharge tube 20
Electric arc is crushed and is extinguished by multiple power-off, to complete a lightning discharge movement.The thermal capacity of half ball electrode 22 of graphite is big, resistance to
High temperature and intensity are good, are able to bear high arc temperature and are not vaporized；It will not be because of lightning current and work using half ball electrode 22 of graphite
The multiple ablation of frequency electric current and melt, occur Effect of Short Circuit properties of product cause safety accident；The present apparatus can greatly improve product
The number for bearing lightning stroke, prolongs the service life；Multiple external series gaps can greatly improve medium after the extinguishing of power frequency continued flow zero passage simultaneously
The speed of insulation recovery makes electric arc not restrike.
Claims (6)
1. a kind of based on the dish type Multiple level arc extinguishing lightning protection device based on double hemisphere T-type ceramic discharge tubes, it is characterised in that:
Including main gap spheric electrode (10), double hemisphere T-type ceramic discharge tubes (20), external series gap spheric electrode (30), interior insulation
Layer (40) and external insulation layer (50)；
Its position and connection relationship are:
Gap in arcing chamber string (A) is composed in series by 6-10 double hemisphere T-type ceramic discharge tubes (20), is in segment arc；
One orthodrome gap is successively staggeredly composed in series by 6-8 gap in arcing chamber string (A) and 5-7 external series gap spheric electrode (30)
(B), the upper spheric electrode (11) and lower spherical shape of main gap spheric electrode (10) are connected separately with from beginning to end in orthodrome gap string (B)
Electrode (12)；
It is uniformly enclosed with inner insulating layer (40) outside at orthodrome gap (B)；
External insulation layer (50) are wrapped in inner insulating layer (40).
2. dish type Multiple level arc extinguishing lightning protection device according to claim 1, it is characterised in that:
The main gap spheric electrode (10) includes upper spheric electrode (11) and lower spheric electrode (12)；
It is a kind of spheric conductor being process by stainless steel, spherical diameter is in 15~25mm.
3. dish type Multiple level arc extinguishing lightning protection device according to claim 1, it is characterised in that:
Double hemisphere T-type ceramic discharge tubes (20) include T-type ceramic tube (21), half ball electrode of graphite (22) and metal hemisphere
Electrode (23)；
Half ball electrode of graphite (22) and half ball electrode of metal (23) are respectively arranged in the cavity up and down of T-type ceramic tube 21；
The T-type ceramic tube (21) includes the hollow cylinder (212) and hemi-spherical cavities (211) of left and right connection, and hemispherical is empty
15~19mm of diameter of chamber 211,9~13mm of thickness；The inner and outer diameter of hollow cylinder (212) is 2.4~5mm respectively, 5.6~
9mm；
The radius of half ball electrode 22 of graphite is 4~6mmm；
The radius of half ball electrode 23 of metal is 4~6mmm.
4. dish type Multiple level arc extinguishing lightning protection device according to claim 1, it is characterised in that:
The external series gap spheric electrode (30) includes left spheric electrode (31) and right spheric electrode (32)；
It is a kind of spheric conductor that stainless steel is process, spherical diameter is in 15~25mm.
5. dish type Multiple level arc extinguishing lightning protection device according to claim 1, it is characterised in that:
The inner insulating layer (40) is the enhancing nylon wrapping layer of a kind of resistance to electric arc and high temperature.
6. dish type Multiple level arc extinguishing lightning protection device according to claim 1, it is characterised in that:
The external insulation layer (50) is a kind of silicon rubber wrapping layer, is in hub-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160866.3A CN109273988B (en) | 2018-09-30 | 2018-09-30 | Disk-shaped multi-gap arc extinguishing lightning protection device based on double-hemisphere T-shaped ceramic discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160866.3A CN109273988B (en) | 2018-09-30 | 2018-09-30 | Disk-shaped multi-gap arc extinguishing lightning protection device based on double-hemisphere T-shaped ceramic discharge tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109273988A true CN109273988A (en) | 2019-01-25 |
| CN109273988B CN109273988B (en) | 2023-07-04 |
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ID=65195966
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160866.3A Active CN109273988B (en) | 2018-09-30 | 2018-09-30 | Disk-shaped multi-gap arc extinguishing lightning protection device based on double-hemisphere T-shaped ceramic discharge tube |
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| Country | Link |
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| CN (1) | CN109273988B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115693406A (en) * | 2022-10-25 | 2023-02-03 | 云南电力试验研究院(集团)有限公司 | Structured medium-voltage overhead line lightning protection device |
| CN115693407A (en) * | 2022-10-25 | 2023-02-03 | 云南电力试验研究院(集团)有限公司 | Overhead line arc extinguishing structure for lightning protection with independent arc extinguishing cavity |
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| CN106911080A (en) * | 2017-03-02 | 2017-06-30 | 武汉水院电气有限责任公司 | A kind of 10kV multistages short arc potential drop voltage superposition excess voltage preventer |
| CN206595098U (en) * | 2017-03-28 | 2017-10-27 | 武汉爱劳高科技有限责任公司 | Combine disc type Multiple level arrester |
| CN107732662A (en) * | 2017-09-10 | 2018-02-23 | 王巨丰 | A kind of transverse and longitudinal blows a coulomb force compresses and draws thunder arc extinguishing ball and double-ball type arcing horn |
| CN108063366A (en) * | 2017-12-07 | 2018-05-22 | 武汉水院电气有限责任公司 | A kind of multi-chamber clearance lightning-proof device arc blow-out structure |
| CN208970929U (en) * | 2018-09-30 | 2019-06-11 | 武汉微创元电子科技有限责任公司 | A kind of dish type Multiple level arc extinguishing lightning protection device of double hemisphere T-type ceramic discharge tubes |
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2018
- 2018-09-30 CN CN201811160866.3A patent/CN109273988B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911080A (en) * | 2017-03-02 | 2017-06-30 | 武汉水院电气有限责任公司 | A kind of 10kV multistages short arc potential drop voltage superposition excess voltage preventer |
| CN206595098U (en) * | 2017-03-28 | 2017-10-27 | 武汉爱劳高科技有限责任公司 | Combine disc type Multiple level arrester |
| CN107732662A (en) * | 2017-09-10 | 2018-02-23 | 王巨丰 | A kind of transverse and longitudinal blows a coulomb force compresses and draws thunder arc extinguishing ball and double-ball type arcing horn |
| CN108063366A (en) * | 2017-12-07 | 2018-05-22 | 武汉水院电气有限责任公司 | A kind of multi-chamber clearance lightning-proof device arc blow-out structure |
| CN208970929U (en) * | 2018-09-30 | 2019-06-11 | 武汉微创元电子科技有限责任公司 | A kind of dish type Multiple level arc extinguishing lightning protection device of double hemisphere T-type ceramic discharge tubes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115693406A (en) * | 2022-10-25 | 2023-02-03 | 云南电力试验研究院(集团)有限公司 | Structured medium-voltage overhead line lightning protection device |
| CN115693407A (en) * | 2022-10-25 | 2023-02-03 | 云南电力试验研究院(集团)有限公司 | Overhead line arc extinguishing structure for lightning protection with independent arc extinguishing cavity |
| CN115693406B (en) * | 2022-10-25 | 2023-08-15 | 云南电力试验研究院(集团)有限公司 | Structured medium-voltage overhead line lightning protection device |
| CN115693407B (en) * | 2022-10-25 | 2023-10-20 | 云南电力试验研究院(集团)有限公司 | Arc extinguishing structure with independent arc extinguishing cavities for lightning protection of overhead line |
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| Publication number | Publication date |
|---|---|
| CN109273988B (en) | 2023-07-04 |
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