CN206976098U - A kind of arrester - Google Patents
A kind of arrester Download PDFInfo
- Publication number
- CN206976098U CN206976098U CN201720878035.4U CN201720878035U CN206976098U CN 206976098 U CN206976098 U CN 206976098U CN 201720878035 U CN201720878035 U CN 201720878035U CN 206976098 U CN206976098 U CN 206976098U
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- CN
- China
- Prior art keywords
- arc extinguishing
- arrester
- resistive segments
- arc
- umbrella disk
- 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.)
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- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims abstract description 5
- 238000002788 crimping Methods 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 24
- 238000010891 electric arc Methods 0.000 description 19
- 239000007789 gas Substances 0.000 description 12
- 239000011787 zinc oxide Substances 0.000 description 12
- 230000009471 action Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 4
- 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 4
- 238000007599 discharging Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
Field of power is the utility model is related to, discloses a kind of arrester, the arrester includes the arc extinguishing section and resistive segments coaxially and vertically set, and the upper end of the arc extinguishing section is connected with the lower end of the resistive segments, and the upper end of the resistive segments is connected with extraneous the earth；The arc extinguishing section includes epoxy plug and is spirally coiled in the spiral umbrella disk of the insulation of the epoxy outside plug, and multiple arc extinguishing units are arranged at intervals along the outward flange of the spiral umbrella disk；The resistive segments include the annular umbrella disk of the multiple insulation of the resistor main body and spacer sleeve of column on the outside of the resistor main body.The utility model is effectively released lightning current in transmission line of lightning strike, can also limit the power frequency continued flow current amplitude after lightning wave effect, ensures that circuit is struck by lightning；Even if resistive segments are damaged or failure, it is possibility to have effect ground cut-out power frequency continued flow, ensure the normal table operation of transmission line of electricity.
Description
Technical field
The technical field of power system is the utility model is related to, more particularly to a kind of arrester.
Background technology
Thunder-strike phenomenon is widely present in power system, the transmission line of electricity tripping operation power outage caused by thunderbolt, to electricity
Force system brings huge economic loss, also threatens the safe and stable operation of power network, installation leakage conductor is current power transmission
The major measure of line thunder protection.
Existing oxidized metal arrester, when resistor disc is damaged, the resistance of resistor disc can reduce, and cause arrester in thunder
Electric wave can not cut off power frequency continued flow after acting on, so that arrester fails.Although existing multiple short air gap arrester can be with
Disconnect larger freewheel current, but individually in lightning wave effect amplitude easily occur later very high for multiple short air gap arrester
Power frequency continued flow, very big impact is produced to power network, therefore multiple short air gap arrester must make with the cooperation of automatic reclosing brake system
With.However, when multiple short air gap arrester is largely assemblied on overhead transmission line, inevitably will reduce to a certain extent
The dielectric level of circuit.
Utility model content
(1) technical problems to be solved
Easily there is resistance decrease because of resistor disc aged deterioration in existing oxidized metal arrester, and arrester failure etc. is asked
Topic, and individually easily there is the very high power frequency continued flow of amplitude later in lightning wave effect in multiple short air gap arrester, to electricity
Net produces very big impact, it is therefore necessary to is used cooperatively with automatic reclosing brake system, reduces the exhausted of circuit to a certain extent
Edge is horizontal.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of arrester, and the arrester includes coaxial and perpendicular
The arc extinguishing section and resistive segments directly set, the upper end of the arc extinguishing section are connected with the lower end of the resistive segments, the resistive segments it is upper
End is connected with extraneous the earth；
The arc extinguishing section includes epoxy plug and is spirally coiled in the spiral umbrella of the insulation of the epoxy outside plug
Disk, multiple arc extinguishing units are arranged at intervals along the outward flange of the spiral umbrella disk；
The resistive segments include the multiple insulation of the resistor main body and spacer sleeve of column on the outside of the resistor main body
Annular umbrella disk.
As a kind of enforceable mode, the arc extinguishing unit includes the electrode being connected with the spiral umbrella disk and covered
The rubber layer covered on the outside of the electrode；The electrode has smooth edge, the electrode of the adjacent arc extinguishing unit
Spaced formation the air gap, two electric discharge projections are symmetrical arranged on the outside of the rubber layer；
In each arc extinguishing unit, two electric discharge projections are respectively described in the arc extinguishing unit adjacent with both sides
Projection of discharging is facing each other and spaced, and gap in arcing chamber is formed between two electric discharge projections facing each other.
Further, grading ring is arranged respectively at the both ends of the arc extinguishing section.
Further, the spacing distance between the electrode of the adjacent arc extinguishing unit is more than or equal to 5 millimeters,
And less than or equal to 10 millimeters；The gap in arcing chamber is more than or equal to 2.5 millimeters, and less than or equal to 5 millimeters.
Further, the cross-sectional area of the electric discharge projection is gradually reduced from inside to outside.
Further, the end of the electric discharge projection is spherical in shape.
As another enforceable mode, the arc extinguishing unit includes arc-extinguishing tube and is attached to the inwall of the arc-extinguishing tube
On gas exhausted material layer, can discharge gas when the gas exhausted material layer is heated.
Further, the resistor main body includes epoxy resin cylinder and is stacked and placed on more in the inner chamber of the epoxy resin cylinder
Individual resistor disc.
Further, the resistor main body also includes the crimping armor clamp for being sealed on the epoxy resin cylinder both ends and two
Elastic component, each elastic component are separately positioned between each crimping armor clamp and the resistor disc.
Further, the spacing distance of the adjacent annular umbrella disk is more than or equal to 35 millimeters.
(3) beneficial effect
A kind of arrester provided by the utility model, the resistor main body of resistive segments have higher resistance, are transmitted electricity in thunderbolt
Resistance can reduce during circuit, lightning current of effectively releasing, and resistance is recovered after thunder and lightning wave attenuation, and power frequency continued flow maintains milliampere
The order of magnitude, spiral umbrella disk is set in the outside of epoxy plug, can ensure that electric arc exists by the outer peripheral arc extinguishing unit of spiral umbrella disk
Reliably extinguish during power frequency continued flow zero passage, the power frequency continued flow current amplitude after lightning wave effect can also be limited by arc extinguishing section,
And then suppress lightning surge, play the purpose of transmission line of electricity lightning protection.
Meanwhile when the resistive segments in arrester, resistance reduces in the presence of lightning wave, breakdown conducting causes short circuit, or thunder
The resistance of resistive segments can not be recovered after piezoelectric voltage decay, and when causing power frequency continued flow amplitude too high, arc extinguishing section can cut off amplitude height
Up to the freewheel current of kilo-ampere rank, power frequency continued flow can also be effectively cut off before relay protection of power system action.This practicality
New arrester can preferably reduce influence of the thunder and lightning to transmission line of electricity, improve the Stability and dependability of power system,
Ensure the normal operation of transmission line of electricity.
Brief description of the drawings
Fig. 1 is the structural representation of arrester of the present utility model；
Fig. 2 is the schematic diagram of the cross section of the arc extinguishing section of arrester of the present utility model；
Fig. 3 is the schematic cross-sectional view of the resistor main body of arrester of the present utility model.
Reference：
1- grading rings；The end metal fitting of 2- arresters；3- annular umbrella disks；
4- resistor main bodies；
41- epoxy resin cylinders；42- resistor discs；43- crimping armor clamps；44- elastic components；
5- spiral umbrella disks；51- sphere poles；52- rubber layers；
53- electric discharge projections；54- gap in arcing chamber；
6- epoxy plugs.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to the scope of the utility model.
Refer to shown in Fig. 1, the utility model proposes a kind of arrester, and it includes the arc extinguishing section being coaxially disposed and resistance
Section, and arc extinguishing section and resistive segments are to be vertically arranged.The upper end of arc extinguishing section and the lower end of resistive segments connect, the upper end of resistive segments with
Extraneous the earth connects.
Arc extinguishing section includes epoxy plug 6 and is spirally coiled in the spiral umbrella disk 5 of the insulation in the outside of epoxy plug 6, along spiral shell
The outward flange for revolving umbrella disk 5 is arranged at intervals multiple arc extinguishing units.Resistive segments include the resistor main body 4 of column and spacer sleeve is mounted in resistance
The annular umbrella disk 3 of multiple insulation in the outside of body 4.
That is, the upper end of resistive segments is connected with the earth, it is the low pressure stage of arrester, the lower end of arc extinguishing section can be with the external world
Wire connection, be arrester high pressure section.More preferably, spiral umbrella disk 5 and annular umbrella disk 3 are made by silica gel, arc extinguishing unit
In the helically zonal distribution of the outward flange of spiral umbrella disk 5.
A kind of arrester provided by the utility model, the resistor main body of resistive segments have higher resistance, are transmitted electricity in thunderbolt
The resistance of resistor main body can reduce during circuit, and lightning current of effectively releasing, the resistance of resistor main body is extensive after thunder and lightning wave attenuation
Multiple, power frequency continued flow maintains a milliampere order of magnitude, and spiral umbrella disk is set in the outside of epoxy plug, outer peripheral by spiral umbrella disk
Arc extinguishing unit can ensure that electric arc reliably extinguishes in power frequency continued flow zero passage, after lightning wave effect can also being limited by arc extinguishing section
Power frequency continued flow current amplitude, and then suppress lightning surge, play the purpose of transmission line of electricity lightning protection.
Meanwhile when the resistance segment fault in arrester causes power frequency continued flow amplitude too high, arc extinguishing section can also be in electricity
Power frequency continued flow is effectively cut off before Force system relay protection action, ensures the normal operation of transmission line of electricity.The utility model need not
It is used cooperatively with automatic reclosing brake system, the dielectric level of circuit will not be reduced.
That is, when resistive segments, resistance reduces in the presence of lightning wave, breakdown conducting causes short circuit, or lightning voltage
When the resistance of resistive segments can not be recovered after decay, arc extinguishing section can cut off the freewheel current that amplitude is up to kilo-ampere rank, Jin Er
Extinguish power frequency arc before relay protection action.Arrester of the present utility model can preferably reduce shadow of the thunder and lightning to transmission line of electricity
Ring, improve the Stability and dependability of power system.
As a kind of enforceable mode, refer to shown in Fig. 2, arc extinguishing unit includes the electrode being connected with spiral umbrella disk 5
51 and the rubber layer 52 in the outside of electrode 51 is covered in, electrode 51 has smooth edge, the electrode 51 of adjacent arc extinguishing unit
Spaced formation the air gap, the outside of rubber layer 52 are symmetrical arranged two electric discharge projections 53.
In each arc extinguishing unit, the electric discharge projection 53 of two electric discharge projections 53 arc extinguishing unit adjacent with both sides respectively is mutual
Face and spaced, the formation gap in arcing chamber 54 between two electric discharge projections 53 facing each other.
That is, in each arc extinguishing unit, the electric discharge projection 53 protruded outward is symmetricly set in the center of arc extinguishing unit
Line both sides, and the inner of two electric discharge projections 53 is smaller than its outer end spacing, makes the end of electric discharge projection 53 respectively to both sides
Direction extension where adjacent arc extinguishing unit, to be formed respectively between the electric discharge projection 53 of the arc extinguishing unit adjacent with both sides
Less gap in arcing chamber 54.
More preferably, electrode 51 can be sphere pole, elliptical electrodes, circular electrode, or other have smooth edge
Electrode.The air gap being spaced between electrode 51 is stabilized, and ensure that the reliability of arc extinguishing section.
Electrode 51 is sphere pole in the present embodiment, and sphere pole is partially retained in the rubber layer 52 of insulation, adjacent
The air gap between sphere pole 51 be present, the air gap passes through the gap in arcing chamber 54 that the outside of rubber layer 52 is set and outside sky
Gas connects.Under lightning wave effect, the air gap between sphere pole 51 made of metal is breakdown, electric arc occurs.Thunder and lightning
After ripple acts on, the air between the air gap is heated by the electric arc simultaneously expansion, and electric arc is pushed out the air gap so that arc length increases
Add, temperature reduces, and promotes arc extinction.
Further, can not only be with each arc extinguishing unit pair as shown in figure 1, being arranged grading ring 1 respectively at the both ends of arc extinguishing section
Electric field should be formed, moreover it is possible to make electric discharge more stable.
As a kind of enforceable mode, grading ring 1 is may also set up in the upper end of resistive segments, makes electric discharge more stable.
Further, as shown in Fig. 2 the spacing distance between the electrode 51 of adjacent arc extinguishing unit is more than or equal to 5
Millimeter, and less than or equal to 10 millimeters, the air gap is formed between adjacent electrode 51, because the air gap is smaller, and quantity
More, multiple the air gaps make arc extinguishing section have multiple short air gap.The width of gap in arcing chamber 54 is smaller, and it is more than or equal to 2.5
Millimeter, and less than or equal to 5 millimeters.In arc burning, the air of expanded by heating is smaller from width by electric arc in the air gap
Gap in arcing chamber 54 blow out, make arc extinction.
Further, the cross-sectional area for projection 53 of discharging is gradually reduced from inside to outside, so that electric discharge occurs.
Further, the end for projection 53 of discharging is spherical in shape, makes electric discharge more stable.
As another enforceable mode, arc extinguishing unit includes arc-extinguishing tube and the aerogenesis being attached on the inwall of arc-extinguishing tube
Material layer, gas can be discharged when gas exhausted material layer is heated, that is to say, that arc extinguishing unit can use air-flow arc extinguishing unit.Work as production
Gas material layer is higher than the speed of air expansion by gas velocity during heat, discharged caused by electric arc, so as to the gas energy
Electric arc is blown out.The gas exhausted material layer that gas can be discharged by being set in arc-extinguishing tube belongs to prior art, will not be repeated here.Due to gas
Flow arc extinguishing unit and preferentially used more by airflow function, the easy generating material aging of related components therein, arc extinguishing section for a long time
The structure of weight short air gap.
Further, as shown in figure 3, resistor main body 4 includes epoxy resin cylinder 41 and is stacked and placed on the interior of epoxy resin cylinder 41
Multiple resistor discs 42 in chamber.
As a kind of enforceable mode, resistor disc 42 is matal-oxide resistor piece, in the present embodiment, using zinc oxide electricity
Hinder piece.
Arrester of the present utility model, using the resistive segments with zinc oxide resistance sheet and the arc extinguishing with multiple short air gap
The structure that section is serially connected.Under the operating mode of normal operation circuit, arc extinguishing section bears the additional power-frequency voltage of the overwhelming majority, also
It is to say, multiple short air gap bears line voltage.
Under lightning wave effect, multiple short air gap is breakdown, and lightning surge is applied on zinc oxide resistance sheet so that oxygen
Change the action of zinc resistor disc, the resistance of resistor disc 42 is reduced, and lightning current is let out downwards along zinc oxide resistance sheet and the short air gap of breakdown
It is put into the earth.That is, electric arc punctures along zinc oxide resistance sheet, multiple short air gap and three grading rings 1, now zinc oxide is electric
Resistance piece is in low resistance state, and lightning current is released to the earth by above-mentioned breakdown path.
Lightning wave action time is very short, and when the lightning current on conductive path is decayed, but electric arc does not extinguish, line voltage is applied
The both ends of zinc oxide resistance sheet are added in, zinc oxide resistance sheet recovers to high resistance state, and power frequency continued flow electric current is only milliampere level.By
Recover in the resistance of zinc oxide resistance sheet, freewheel current very little, afterflow electric arc is cut off quickly, and only amplitude is milliampere rank
Power frequency continued flow flows through zinc oxide resistance sheet.In power frequency continued flow zero passage, gap in arcing chamber of the electric arc in multiple short air gap arc extinguishing section
Go out blowout, extinguish.For traditional arrester, the utility model proposes arrester can be by power frequency continued flow electric current
Amplitude is limited in a milliampere rank, reduces the power frequency short circuiting arc caused by thunder and lightning punctures gap, and then avoids power frequency continued flow electricity
Stream impacts to power network.
When the zinc oxide resistance sheet in arrester is because of phenomena such as longtime running or external factor cause aging, damage, electricity
Hindering the resistance of piece 42 reduces, and freewheel current amplitude reaches kilo-ampere level, or during most serious, resistor disc is short-circuit under thunderbolt state,
Again or resistance is difficult to recover after thunder and lightning wave attenuation.Because multiple short air gap arc extinguishing section has very strong arc extinction performance, work as height
When flowing through short air gap (i.e. the air gap) up to the freewheel current of kilo-ampere rank, the air in the air gap is because of heat caused by electric arc
And expanded by heating, power frequency continued flow electric arc leave from the gap in arcing chamber 54 between sphere pole 51, that is to say, that electric arc is along between arc extinguishing
Gap 54 is released outside gap in arcing chamber 54, and electric arc makes the resistance of electric arc increase, electric arc by being elongated during narrower gap in arcing chamber 54
Temperature reduce, so as to promote arc extinction, cut off power frequency continued flow.
From the foregoing, it will be observed that even if there is short trouble in zinc oxide resistance sheet, because arc extinguishing section has multiple short air gap structure, still
The power frequency continued flow electric arc of kilo-ampere rank can so be extinguished before relay protection acts, avoid the generation of short-circuit trip accident.
Further, resistor main body 4 also includes the crimping armor clamp 43 and two bullets for being sealed on the both ends of epoxy resin cylinder 41
Property part 44, each elastic component 44 are separately positioned between each crimping armor clamp 43 and resistor disc 42.
As shown in figure 1, the end metal fitting 2 of crimping armor clamp 43 and arrester is connected through a screw thread, it is ensured that when lightning wave applies
At the both ends of resistive segments, the resistor disc 42 to stack together can realize effective electrical connection.
In the present embodiment, elastic component 44 is spring.The upper end of spring above acts against crimping gold above
The lower surface of tool 43, its lower end contact is in the upper surface of the resistor disc 42 of the top；The upper end contact of underlying spring exists
The lower surface of the resistor disc 42 of bottom, its lower end act against the upper surface of underlying crimping armor clamp 43.
Further, the spacing distance of adjacent annular umbrella disk 3 is more than or equal to 35 millimeters.The spacer of annular umbrella disk 3
From smaller, it can make arrester that there is larger creepage length.
From the foregoing, it will be observed that arrester of the present utility model, in transmission line of lightning strike, the resistance of resistor disc 42 reduces, effectively
Ground is released lightning current, and resistor disc 42 can also recover resistance, the power frequency continued flow after limitation lightning wave effect after thunder and lightning wave attenuation
Current amplitude, ensure that circuit is struck by lightning.Meanwhile after lightning surge decays, even if the resistor disc 42 in arrester damages
Or failure, when causing power frequency continued flow amplitude too high, power frequency can also be effectively cut off before relay protection of power system action and continued
Stream, ensure the normal table operation of transmission line of electricity.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (10)
1. a kind of arrester, it is characterised in that the arrester includes the arc extinguishing section and resistive segments coaxially and vertically set, described
The upper end of arc extinguishing section is connected with the lower end of the resistive segments, and the upper end of the resistive segments is connected with extraneous the earth；
The arc extinguishing section includes epoxy plug and is spirally coiled in the spiral umbrella disk of the insulation of the epoxy outside plug, edge
The outward flange of the spiral umbrella disk is arranged at intervals multiple arc extinguishing units；
The resistive segments include the annular of the multiple insulation of the resistor main body and spacer sleeve of column on the outside of the resistor main body
Umbrella disk.
2. arrester as claimed in claim 1, it is characterised in that the arc extinguishing unit includes what is be connected with the spiral umbrella disk
Electrode and the rubber layer being covered on the outside of the electrode；The electrode has smooth edge, the adjacent arc extinguishing unit
The spaced formation the air gap of the electrode, two electric discharge projections are symmetrical arranged on the outside of the rubber layer；
In each arc extinguishing unit, the electric discharge of two electric discharge projections arc extinguishing unit adjacent with both sides respectively
Projection is facing each other and spaced, and gap in arcing chamber is formed between two electric discharge projections facing each other.
3. arrester as claimed in claim 2, it is characterised in that be arranged grading ring respectively at the both ends of the arc extinguishing section.
4. arrester as claimed in claim 2 or claim 3, it is characterised in that between the electrode of the adjacent arc extinguishing unit
Spacing distance be more than or equal to 5 millimeters, and less than or equal to 10 millimeters；The gap in arcing chamber be more than or equal to 2.5 millimeters, and
Less than or equal to 5 millimeters.
5. arrester as claimed in claim 2 or claim 3, it is characterised in that it is described electric discharge projection cross-sectional area from inside to outside by
It is tapered small.
6. arrester as claimed in claim 5, it is characterised in that the end of the electric discharge projection is spherical in shape.
7. arrester as claimed in claim 1, it is characterised in that the arc extinguishing unit includes arc-extinguishing tube and is attached to described go out
Gas exhausted material layer on the inwall of arc pipe, gas can be discharged when the gas exhausted material layer is heated.
8. arrester as claimed in claim 1, it is characterised in that the resistor main body includes epoxy resin cylinder and is stacked and placed on institute
State multiple resistor discs in the inner chamber of epoxy resin cylinder.
9. arrester as claimed in claim 7, it is characterised in that the resistor main body also includes being sealed on the epoxy resin
The crimping armor clamp and two elastic components at cylinder both ends, each elastic component are separately positioned on each crimping armor clamp and the resistor disc
Between.
10. arrester as claimed in claim 1, it is characterised in that the spacing distance of the adjacent annular umbrella disk be more than or
Equal to 35 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878035.4U CN206976098U (en) | 2017-07-19 | 2017-07-19 | A kind of arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878035.4U CN206976098U (en) | 2017-07-19 | 2017-07-19 | A kind of arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206976098U true CN206976098U (en) | 2018-02-06 |
Family
ID=61402868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720878035.4U Active CN206976098U (en) | 2017-07-19 | 2017-07-19 | A kind of arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206976098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369508A (en) * | 2017-07-19 | 2017-11-21 | 国网湖南省电力公司 | A kind of arrester |
-
2017
- 2017-07-19 CN CN201720878035.4U patent/CN206976098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369508A (en) * | 2017-07-19 | 2017-11-21 | 国网湖南省电力公司 | A kind of arrester |
| CN107369508B (en) * | 2017-07-19 | 2023-06-27 | 国网湖南省电力公司 | Lightning arrester |
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