CN108365519A - A kind of transmission line of electricity overvoltage protection - Google Patents
A kind of transmission line of electricity overvoltage protection Download PDFInfo
- Publication number
- CN108365519A CN108365519A CN201810119982.4A CN201810119982A CN108365519A CN 108365519 A CN108365519 A CN 108365519A CN 201810119982 A CN201810119982 A CN 201810119982A CN 108365519 A CN108365519 A CN 108365519A
- Authority
- CN
- China
- Prior art keywords
- gap
- helical
- transmission line
- ontology
- overvoltage protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 27
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000010931 gold Substances 0.000 claims abstract description 26
- 229910052737 gold Inorganic materials 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- 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
Abstract
A kind of transmission line of electricity overvoltage protection; gold utensil, helical gap ontology, grading ring main gap, high pressure fastening gold utensil and insulation mandrel are fixed including low pressure; insulation mandrel is through helical gap ontology; high pressure fastening gold utensil with overhead transmission line for connecting; it is connect with the low-pressure end of grading ring main gap by insulation mandrel; grading ring main gap is connect by insulation mandrel with helical gap ontology, and helical gap ontology fixes gold utensil by middle part insulation mandrel and low pressure and is connected as overall structure；Helical gap ontology includes the helical gap of plural serial stage, and helical gap is the air gap formed by adjacent spiral electrode interval.The present invention can quickly guide thunder discharge electric arc to outer displacement, effectively reduce the temperature of electrode discharge surface, the heat for being conducive to electric arc generation distributes, reduce the scaling loss of discharge electrode, with stable discharging performance, ensure transmission line of electricity by when Lightning Over-voltage can operating stably, thunder energy of effectively releasing.
Description
Technical field
The present invention relates to power system transmission line lightning protection field, specifically a kind of transmission line of electricity overvoltage protection.
Background technology
In recent years, a kind of transmission line of electricity overvoltage protection reaches arc extinguishing using the electric discharge of metal short air gap chamber structure
Technology is quickly grown, in 200980110809.7 (denomination of invention of disclosed number of patent application：High voltage insulator and use are described absolutely
The high-voltage power line of edge body), number of patent application 200980158050.X (denominations of invention：Arrester and with this arrester
Power transmission line), 2014106559971.7 (denomination of invention of number of patent application：Lightning protection device) in have associated description, the technology utilize
Lightning surge is discharged between gap, and the electric arc for generation of discharging burns in constraint gap, and the plasma of arc burning is expanding
Cause gas to chamber rapid expanding during dissipating, the collective effect of the electromagnetic power in constraint space between rapid expanding and gap
Under, quickly high temperature and pressure plasma is discharged to atmospheric environment, realizes arc blow-out, arc extinguishing effect.
Above-mentioned excess voltage preventer relies primarily on the quick heating chamber gas of arc-plasma thermal energy, is blown by gas
Arc effect realizes arc extinguishing.But since geometric electrode size is less than normal, electric arc arc root is faced during the power frequency continued flow after lightning stroke
The defects of area is too small, heat is concentrated, electrode temperature rises the factors such as too fast influences, and there are the easy scaling loss of electrode, chamber insulation breakdowns；Together
When gas to chamber expansion high pressure easily tear insulating layer, cause the voltage protection apparatus function fail.
Therefore, a kind of product design and development for the transmission line of electricity overvoltage protection meeting high safety performance just seems outstanding
Its is important.
Invention content
Based on deficiencies of the prior art, the present invention provides a kind of transmission line of electricity overvoltage protection, can have
Effect reduces the temperature of electrode discharge surface, and the heat for being conducive to electric arc generation distributes, and reduces the scaling loss of discharge electrode, has and stablizes
Discharge performance, ensure transmission line of electricity by when Lightning Over-voltage can operating stably, thunder energy of effectively releasing, protect power transmission line
Road safety.
The present invention adopts the following technical scheme that realization：
A kind of transmission line of electricity overvoltage protection, including low pressure are fixed between gold utensil, helical gap ontology, grading ring master
Gap, high pressure fastening gold utensil and insulation mandrel, insulation mandrel run through helical gap ontology, high pressure fasten gold utensil be used for it is aerial defeated
Electric line connects, and is connect with the low-pressure end of grading ring main gap by insulation mandrel, grading ring main gap by insulation mandrel and
The ontology connection of helical gap, helical gap ontology fix gold utensil by middle part insulation mandrel and low pressure and are connected as overall structure；Institute
The helical gap that helical gap ontology includes plural serial stage is stated, the helical gap is formed by adjacent spiral electrode interval
The air gap.
Further, helical gap ontology further includes increasing to climb full skirt, composite sheath, and the helical gap is by compound outer
Set isolation covering is equipped with to increase and climbs full skirt in the composite sheath of the helical gap radial direction of odd level.
Further, it is partially filled with composite insulating material except the air gap and forms composite sheath, composite sheath
Outer rim is equipped with the increasing with odd level helical gap intersection location and climbs full skirt.
Further, the spiral electrode is made of conductive metallic material, and the spiral electrode is in integrally disk shape, table
Face is smooth surface, planar thickness 1.5mm~4mm, and plane both sides symmetric design has the semicylinder shape of a diameter of 2mm~5mm
Helical body, the top of helical body is bulb shape.
Further, mounting hole is offered in the middle part of the spiral electrode, the helical body is set by starting point of mounting hole,
The helical body protrusion helical is in Archimedes spiral shape.
Further, the helical body is symmetrically set in spiral electrode plane, is distributed in two planes up and down of spiral electrode
On.
Further, the low pressure fixes gold utensil and high pressure fastening gold utensil uses bulb socket arrangement, is withheld by the draw
Technique is fastened on insulation mandrel one end respectively.
Further, the grading ring main gap includes two grading rings and the insulator umbrella between two grading rings
Skirt.
Overvoltage protection of the present invention is pressed using spiral electrode gap open formula structure when circuit is by being struck by lightning
After ring main gap flashover, helical gap ontology can quickly guide thunder discharge electric arc to outer displacement, effectively reduce electrode discharge
The temperature on surface；Large volume, high specific heat capacity spiral electrode be more advantageous to electric arc generation heat distribute, reduce discharge electrode
Scaling loss；Electrical discharge arc temperature reduces between spiral electrode interstitial structure, increases electrical discharge arc plasma free state, improves
Electrical discharge arc arc road resistance so that electric arc is easier to extinguish；The stable discharging performance in spiral electrode gap, can effectively release thunder and lightning
Energy protects transmission line safety.
Description of the drawings
Fig. 1 is the structural schematic diagram of the one of embodiment of transmission line of electricity overvoltage protection of the present invention；
Fig. 2 is the vertical view of spiral electrode in the present invention；
Fig. 3 is the partial structural diagram of spiral electrode gap ontology in the present invention.
In figure：Full skirt is climbed in 1-low pressure fixation gold utensil, 2-helical gap ontologies, 21-helical gaps, 22-increasings, and 23-is multiple
Conjunction housing, 3-grading ring main gaps, 31-full skirts, 32-grading rings, 4-high pressures fastening gold utensil, 5-insulation mandrels, 211-
Spiral electrode, 2111-helical bodies, 2112-mounting holes.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described.
Fig. 1 show the structural schematic diagram of the one of embodiment of transmission line of electricity overvoltage protection of the present invention, institute
It includes that low pressure fixes gold utensil 1, helical gap ontology 2, grading ring main gap 3,4 and of high pressure fastening gold utensil to state overvoltage protection
Insulation mandrel 5.Insulation mandrel 5 plays the role of supports insulative through overvoltage protection entirety.High pressure fastens gold utensil 4 and uses
It connect in overhead transmission line, is connect with the low-pressure end of grading ring main gap 3 by insulation mandrel 5.Grading ring main gap 3 is logical
It crosses insulation mandrel 5 to connect with helical gap ontology 2, helical gap ontology 2 fixes gold utensil 1 by middle part insulation mandrel 5 with low pressure
It is connected as overall structure.
It is casting aluminium material of the surface Jing Guo Passivation Treatment that the low pressure, which fixes gold utensil 1, passes through draw withholding of technology and insulation
Plug 5 tightens together.Helical gap ontology 2 forms (as shown in Figure 3) by 20~40 grades of series connection of helical gap 21, passes through
Silicon rubber vulcanization technique is wrapped to form composite sheath 23, and 21 radial direction of helical gap of odd level is provided with increasing and climbs from the top down
Full skirt 22, extension is except ontology.
Referring to Fig. 2, the helical gap 21 by the interval of adjacent flights electrode 211 by forming the air gap, the helical
Whole electrode 211 is in disk shape, and planar thickness 1.5mm~4mm, plane both sides are arranged with the semicircle of a diameter of 2mm~5mm
The top of the helical body 2111 of bar shape, helical body 2111 is bulb shape.Middle part offers mounting hole 2112, with mounting hole 2112
Helical body 2111 is set for starting point, the raised helical of helical body 2111 is in Archimedes spiral shape, and the top of helical body 2111 is
Bulb shape.2111 surface of helical body is smooth surface, and electrode charge is evenly distributed, and ensures that the distribution of lightning surge breakdown point is equal
It is even, it is not susceptible to unexpected breakdown, avoiding frequently discharging in certain point causes the deformity of spiral electrode.Helical body 2111 passes through mold
Casting pressure is process, and center is equipped with mounting hole 2112, and mounting hole (2111) could be provided as round, rectangle or other special-shaped shapes
Shape.In arc discharge, using the helical body structure of Archimedes spiral shape, electric discharge arc path resistance is minimum, can be improved
Electric arc is more advantageous to arc extinction along helical body movement speed.Spiral electrode structure has the cooling and deionization of electrical discharge arc
There is extremely strong facilitation.Spiral electrode 211 is made of the conductive material of high specific heat capacity, can effectively reduce the Wen Sheng of helical,
Electric arc heat is promoted to distribute rapidly.The grading ring main gap 3 is made of upper and lower two parallel grading rings 32, forms a master
It discharges the air gap, full skirt 31 is provided among gap, to ensure that discharge path is happened at two parallel up and down grading rings
In air between 32.Full skirt 31, grading ring 32 entirely through insulation mandrel 5 through withholding of technology fasten, and with helical gap
Ontology 2 forms an entirety.High pressure fastening gold utensil 4 is that casting aluminium material is fastened on by draw withholding of technology on insulation mandrel 5.
Low pressure described in mounting hole fixes gold utensil 1 and uses bulb socket arrangement, connection flexible for installation.
Above-mentioned overvoltage protection operation principle is illustrated below：
Transmission line of electricity overvoltage protection high pressure fastening gold utensil 4 is fixed on overhead transmission line road, when circuit is by thunder
When hitting overvoltage, overvoltage is led to grading ring main gap 3 by high pressure fastening electrode 4, causes the air gap of grading ring main gap 3
Disruptive discharge, Lightning Over-voltage is applied on helical gap ontology 2 after the electric discharge of air main gap.Pass through helical gap ontology 2
Volt-second characteristic designs, and Lightning Over-voltage causes the quick flashover successively in the helical gap 21 of series multiple on helical gap ontology 2.
There is spiral electrode 211 edge globoidal structure, globoidal structure can be missed caused by the point discharge to avoid edge
Action；Electrical discharge arc along between helical body generate a transverse magnetic field, avoid at this moment arc current between electrode tangentially side
To fast moving, to reduce the temperature of electrode discharge surface；The design of the spiral electrode 211 of large volume, high specific heat capacity is more
Wen Sheng of the electrode in over-pressed arcing is advantageously reduced, the heat that electric arc generates is made to distribute, reduces the scaling loss to discharge electrode；Spiral shell
Electrical discharge arc temperature reduces between the metal gap structure formed between line electrode 211, and electrical discharge arc plasma is in and goes to dissociate
State, electrical discharge arc resistance are very big so that electric arc is easier to extinguish；Spiral electrode gap has stable discharging performance, it is ensured that
Transmission line of electricity protects transmission line safety by that can stablize release when Lightning Over-voltage.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Belong to those skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in all are answered
It is included within the scope of the present invention.
Claims (8)
1. a kind of transmission line of electricity overvoltage protection, it is characterised in that：Gold utensil (1), helical gap ontology are fixed including low pressure
(2), grading ring main gap (3), high pressure fastening gold utensil (4) and insulation mandrel (5), insulation mandrel (5) run through helical gap ontology
(2), high pressure fastening gold utensil (4) passes through insulation mandrel (5) and grading ring main gap (3) for being connect with overhead transmission line
Low-pressure end connects, and grading ring main gap (3) is connect by insulation mandrel (5) with helical gap ontology (2), helical gap ontology
(2) gold utensil is fixed by middle part insulation mandrel (5) and low pressure and is connected as overall structure；Helical gap ontology (2) includes more
The concatenated helical gap (21) of grade, the helical gap (21) are spaced between the air formed by adjacent spiral electrode (211)
Gap.
2. transmission line of electricity overvoltage protection according to claim 1, it is characterised in that：Helical gap ontology
(2) further include that increase climbs full skirt (22), composite sheath (23) more, the helical gap (21) is isolated by composite sheath (23) to be covered,
It is equipped with to increase in the composite sheath (23) of helical gap (21) radial direction of odd level and climbs full skirt (22).
3. transmission line of electricity overvoltage protection according to claim 2, it is characterised in that：The air gap is external
Filled composite insulating materials is divided to form composite sheath (23), the outer rim of composite sheath (23) intersects with odd level helical gap (21)
Position is equipped with the increasing and climbs full skirt (22).
4. transmission line of electricity overvoltage protection according to claim 1, it is characterised in that：The spiral electrode (211)
It is made of conductive metallic material, the spiral electrode (211) is in integrally disk shape, and surface is smooth surface, planar thickness
1.5mm~4mm, plane both sides symmetric design have the helical body (2111) of the semicylinder shape of a diameter of 2mm~5mm, helical body
(2111) top is bulb shape.
5. transmission line of electricity overvoltage protection according to claim 4, it is characterised in that：The spiral electrode (211)
Middle part offer mounting hole (2112), be that the helical body (2111), the helical body is arranged in starting point with mounting hole (2112)
(2111) raised helical is in Archimedes spiral shape.
6. transmission line of electricity overvoltage protection according to claim 4 or 5, it is characterised in that：The helical body
(2111) it is symmetrically set in spiral electrode (211) plane, is distributed in two planes up and down of spiral electrode (211).
7. a kind of transmission line of electricity overvoltage protection according to claim 1, it is characterised in that：The low pressure fixes gold
Have (1) and high pressure fastening gold utensil (4) uses bulb socket arrangement, insulation mandrel (5) is fastened on by draw withholding of technology respectively
One end.
8. a kind of transmission line of electricity overvoltage protection according to claim 1, it is characterised in that：Between the grading ring master
Gap (3) includes two grading rings (32) and the insulator umbrella (31) between two grading rings (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119982.4A CN108365519B (en) | 2018-02-07 | 2018-02-07 | Overvoltage protection device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810119982.4A CN108365519B (en) | 2018-02-07 | 2018-02-07 | Overvoltage protection device for power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108365519A true CN108365519A (en) | 2018-08-03 |
| CN108365519B CN108365519B (en) | 2023-12-19 |
Family
ID=63004918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810119982.4A Active CN108365519B (en) | 2018-02-07 | 2018-02-07 | Overvoltage protection device for power transmission line |
Country Status (1)
| Country | Link |
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| CN (1) | CN108365519B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449866A (en) * | 2018-11-27 | 2019-03-08 | 国网浙江省电力有限公司绍兴供电公司 | Fitting under fixation voltage limiter discharge path based on narrowband technology of Internet of things |
| CN112769041A (en) * | 2020-12-30 | 2021-05-07 | 国网河南省电力公司南阳供电公司 | Series gap lightning arrester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110102960A1 (en) * | 2008-03-27 | 2011-05-05 | Otkrytoe Aktsionernoe Obschestvo "NPO STREAMER" | High-voltage insulator and a high-voltage electric power line using said insulator |
| CN105070427A (en) * | 2015-08-22 | 2015-11-18 | 山东迅实电气有限公司 | Cross arm support voltage limiter for overhead line |
| CN105938978A (en) * | 2016-06-01 | 2016-09-14 | 武汉大学 | Multi-gap lightning-protection insulator used for alternating-current overhead transmission line |
| CN105977789A (en) * | 2016-06-01 | 2016-09-28 | 武汉新电电气技术有限责任公司 | Spiral multi-gap lightning arrester |
| CN206595546U (en) * | 2017-03-23 | 2017-10-27 | 广东富诺顿电子有限公司 | A kind of voltage protector with disconnector |
| CN206657957U (en) * | 2017-03-28 | 2017-11-21 | 武汉爱劳高科技有限责任公司 | Integrated self arc Multiple level arrester |
| CN107369508A (en) * | 2017-07-19 | 2017-11-21 | 国网湖南省电力公司 | A kind of arrester |
| CN207765787U (en) * | 2018-02-07 | 2018-08-24 | 国网湖北省电力有限公司电力科学研究院 | A kind of transmission line of electricity overvoltage protection |
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2018
- 2018-02-07 CN CN201810119982.4A patent/CN108365519B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110102960A1 (en) * | 2008-03-27 | 2011-05-05 | Otkrytoe Aktsionernoe Obschestvo "NPO STREAMER" | High-voltage insulator and a high-voltage electric power line using said insulator |
| CN105070427A (en) * | 2015-08-22 | 2015-11-18 | 山东迅实电气有限公司 | Cross arm support voltage limiter for overhead line |
| CN105938978A (en) * | 2016-06-01 | 2016-09-14 | 武汉大学 | Multi-gap lightning-protection insulator used for alternating-current overhead transmission line |
| CN105977789A (en) * | 2016-06-01 | 2016-09-28 | 武汉新电电气技术有限责任公司 | Spiral multi-gap lightning arrester |
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| CN206657957U (en) * | 2017-03-28 | 2017-11-21 | 武汉爱劳高科技有限责任公司 | Integrated self arc Multiple level arrester |
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| CN207765787U (en) * | 2018-02-07 | 2018-08-24 | 国网湖北省电力有限公司电力科学研究院 | A kind of transmission line of electricity overvoltage protection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449866A (en) * | 2018-11-27 | 2019-03-08 | 国网浙江省电力有限公司绍兴供电公司 | Fitting under fixation voltage limiter discharge path based on narrowband technology of Internet of things |
| CN112769041A (en) * | 2020-12-30 | 2021-05-07 | 国网河南省电力公司南阳供电公司 | Series gap lightning arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108365519B (en) | 2023-12-19 |
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