CN106451080A - Lightning arrester - Google Patents
Lightning arrester Download PDFInfo
- Publication number
- CN106451080A CN106451080A CN201611226761.4A CN201611226761A CN106451080A CN 106451080 A CN106451080 A CN 106451080A CN 201611226761 A CN201611226761 A CN 201611226761A CN 106451080 A CN106451080 A CN 106451080A
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- China
- Prior art keywords
- arrester
- unit
- electrode
- spark gap
- iii
- 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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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
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/14—Arcing horns
-
- 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
- H01T1/16—Series resistor structurally associated with spark gap
-
- 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
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Thermistors And Varistors (AREA)
- Insulators (AREA)
Abstract
The invention discloses a lightning arrester, which comprises an insulator string, a first lightning arrester element, a second lightning arrester element, a third lightning arrester element, a first electrode, a second electrode and a fixing base, wherein the first lightning arrester element and the second lightning arrester element are arranged under the insulator string; in addition, the upper end of the first lightning arrester element and the upper end of the second lightning arrester element are respectively connected with the two ends of the insulator string; the upper end of the third lightning arrester element is connected with the lower end of the second lightning arrester element; the lower end of the first lightning arrester element is outwards provided with the first electrode; the second electrode is outwards arranged at one side, near the first lightning arrester element, of the upper end of the third lightning arrester element; the second electrode is opposite to the first electrode; the lower end of the third lightning arrester element is fixed on the fixing base. The lightning arrester has the advantages that the structure is simple; the installation is convenient and flexible; the safety performance is high; the power transmission line insulator string can be effectively protected; the lightning flashover ratio is reduced.
Description
Technical field
The invention belongs to power transmission and transforming equipment production technical field is and in particular to a kind of spark gap.
Background technology
Spark gap is a kind of overvoltage protection of electric applicance of excellent performance it is adaptable to power transmission and transformation line and AC electric appliance equipment
Protection, its quality, performance quality are directly connected to the whether safe of operation of power networks.Being arranged on transmission tower existing spark gap more
In parallel with insulator chain, for limiting the lightning surge of transmission line of electricity, reduce lightning flashover rate.Because transmission line of electricity is by thunder
Area is more much bigger than transformer station, so the probability being struck by lightning is much larger than transformer station.With the continuous expansion of electrical network, transmission line of electricity
The tripping operation causing, power outage are increasing.Prior art cannot ensure the safety of lightning protection.
Content of the invention
The invention aims to defect present in solution prior art, provide a kind of security performance higher taking shelter from the thunder
Device.
In order to achieve the above object, the invention provides a kind of spark gap, including insulator chain, unit of an arrester I, take shelter from the thunder
Device element II, unit of an arrester III, first electrode, second electrode and firm banking；Unit of an arrester I, unit of an arrester II set
In the lower section of insulator chain, and the upper end of unit of an arrester I, unit of an arrester II is connected with the two ends of insulator chain respectively；Keep away
The upper end of thunder device element III is connected with the lower end of unit of an arrester II；The lower end of unit of an arrester I is to being externally provided with first electrode；Keep away
The one of the nearly unit of an arrester in upper end I of thunder device element III is laterally externally provided with second electrode, and second electrode is relative with first electrode；
The lower end of unit of an arrester III is fixed on firm banking.
Wherein, unit of an arrester I, unit of an arrester II are symmetrically set in the two ends of insulator chain along the axis of insulator chain
Lower section, and it is in 60 ° with the angle of insulator chain；Unit of an arrester III below unit of an arrester II, and with insulator chain phase
Vertically；Pass through wire between unit of an arrester II, unit of an arrester III to be connected.
The outside two ends of unit of an arrester II are provided with the 4th electrode and the 5th electrode relatively；The lower end of unit of an arrester III to
It is externally provided with the 3rd electrode, and the 3rd electrode is relative with second electrode.
It is provided with insulative pipe sleeve outside wire；It is provided with spring between unit of an arrester II and unit of an arrester III；Spring is certainly
Length when so extending is less than the length of insulative pipe sleeve.
It is connected by spring between unit of an arrester III and firm banking.
Unit of an arrester I, unit of an arrester II, unit of an arrester III all include core body, full skirt shape insulating coating, pressure cap,
Bolt and support bar；Core body is in full skirt shape insulating coating；Symmetrical in the axial direction between core body and full skirt shape insulating coating
It is provided with two support bars；Core body is respectively arranged at two ends with pressure cap, with by bolt presses with full skirt shape insulating coating；Every support
The two ends of bar are fixedly linked with corresponding pressure cap respectively.
Insulative pipe sleeve and full skirt shape insulating coating are all using post-cure elastomeric material.
The raw material preparation by following weight proportion for the above-mentioned post-cure elastomeric material：45 parts of butadiene rubber, nitrile rubber
35 parts, 20 parts of white carbon black, 2 parts of zinc oxide, 2 parts of stearic acid, 12 parts of paraffin oil, 0.5 part of rubber accelerator M, rubber accelerator
2.8 parts of 0.8 part of DM, antioxidant D NP, 0.2 part of antioxidant MB, 3 parts of sulfur.
Insulative pipe sleeve and full skirt shape insulating coating are prepared by the following method：
（1）Butadiene rubber, nitrile rubber and white carbon black are carried out dispensing, mixing；
（2）Then zinc oxide, stearic acid, paraffin oil, antioxidant D NP, antioxidant MB are pressed formula mix homogeneously, add step
（1）Material in, kneaded；
（3）Successively add rubber accelerator DM and rubber accelerator M, kneaded successively；
（4）Add sulfur by formula ratio, be then filled with presulfurization mould, be placed in vulcanizer, at 130 DEG C, vulcanize 2min, rise
Cut overlap after mould, make rubber sleeve semi-finished product；Semi-finished product are placed in mould, and are positioned in vulcanizer, 130
Carry out post-cure 2min, sulfidization molding at DEG C.
The present invention has advantages below compared to existing technology：
1st, formed by the air gap between unit of an arrester I, the first electrode of unit of an arrester III one end and second electrode
Series gap, when thunder and lightning carrys out interim, the quick guide of channels in series of unit of an arrester II and unit of an arrester III composition, subsequently between
Gap channel conductive, the protection voltage of overall spark gap reaches standard value；After thunder and lightning, air gap conducting is closed, unit of an arrester
II and unit of an arrester III recover high-impedance state, be achieved in lightning-arrest purpose, strengthen the safety of its use, raising makes simultaneously
Use the life-span.
2nd, unit of an arrester adopts the full skirt shape insulating coating of elastomeric material preparation and the core composition structure of post-cure,
Easy disassembly, uses after the direct post-cure of rubber simultaneously, it is to avoid core body therewith vulcanize after damage, improve use
Life-span.The element damaging is also convenient for changing.And pass through between full skirt shape insulating coating and core body to arrange support bar, improve
Overall intensity, improves the stability of core body it is ensured that the safe operation of spark gap.
3rd, the wire that between each unit of an arrester, connection in series-parallel adopts is protected by insulated sleeve, enhances safety
Can, simultaneously between protected by spring, there is certain resilient support and act on, further increase service life.
4th, unit of an arrester arranges electrode by two ends and forms portable protective gaps in parallel, protects unit of an arrester.
5th, elastomeric material is used as softening agent by adding paraffin oil, pass through simultaneously rubber, each auxiliary agent compounding, carry further
Its impact elasticity high and ageing resistace.Compounding by rubber accelerator M and DM, and the priority mixing in preparation process,
Reach preferably cure efficiency, reduce curing temperature, shorten cure time.The elastomeric material preparing has splendid electrical equipment
Performance and physical property.
6th, spark gap structure of the present invention is simple, and easy for installation flexibly security performance is high, can effective protection transmission line insulator
Substring, reduces lightning flashover rate.
Brief description
Fig. 1 is the structural representation of spark gap of the present invention；
Fig. 2 is the structural representation of unit of an arrester in Fig. 1.
In figure, 1- insulator chain, 2- unit of an arrester I, 3- unit of an arrester II, 4- unit of an arrester III, 5- first electricity
Pole, 6- second electrode, 7- the 3rd electrode, 8- firm banking, 9- spring, 10- insulative pipe sleeve, 11- wire, 12- the 4th electrode,
13- the 5th electrode, 14- connecting plate, 21- core body, 22- full skirt shape insulating coating, 23- support bar, 24- pressure cap, 25- bolt.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, spark gap of the present invention and insulator chain unitary design, including 1, three spark gap units of insulator chain
Part, firm banking 8.The lower end of spark gap of the present invention can be arranged on the cross-arm of pylon by firm banking 8.Unit of an arrester is equal
Using Zinc-Oxide Arrester, including unit of an arrester I 2, unit of an arrester II 3, unit of an arrester III 4.Unit of an arrester I 2, keep away
Thunder device element II 3 is symmetrically set in below the two ends of insulator chain 1 along the axis of insulator chain 1 respectively, slope inwardly, and with exhausted
The angle of edge substring 1 is in 60 °.Unit of an arrester III 4 is vertical at below unit of an arrester II 3.The lower end of unit of an arrester I 2
To having first electrode 5.First electrode 5 includes horizontal segment and vertical section；Vertical section is vertical with unit of an arrester I 2 to be connected, water
Flat section is vertical with vertical section, and down-set.The upper end of unit of an arrester II 3, the one of nearly unit of an arrester I 2 laterally it is externally provided with
Second electrode 6, second electrode 6 and unit of an arrester II 3 are in 60 ° of angles, and the end points just to first electrode 5 for the end points.Spark gap
The lower end of element II 3 is provided with metal connecting plate 14, is connected with the metal connecting plate of unit of an arrester III 4 upper end by wire 11.
The outer circumferential side of wire 11 is provided with insulative pipe sleeve 10.And the side of insulative pipe sleeve 10, i.e. unit of an arrester II 3 and unit of an arrester III
It is equipped with spring 9, length when spring 9 extends naturally is less than the length of insulative pipe sleeve 10, plays bullet by spring 9 between 4
Property support effect, further protect wire 11.The lower end of unit of an arrester III 4 also is provided with metal connecting plate, by connecting plate
14 both sides are respectively provided with a spring 11, are fixedly linked with firm banking 8 by spring.The lower end of unit of an arrester III 4, the second electricity
The homonymy of pole 6 is provided with the 3rd electrode 7.3rd electrode 7 includes bending segment and horizontal segment, and bending segment inclines along the direction of second electrode 6
Tiltedly it is arranged on the lower end of unit of an arrester III 4, and be in 60 ° with the angle of unit of an arrester III 4；Horizontal segment is connected with bending segment,
And inside setting parallel with unit of an arrester III 4, the end points just to described second electrode 6 at end points.The two of unit of an arrester II 3
End is provided with the 3rd electrode 12 and the 4th electrode 13 respectively relatively.3rd electrode 12 and the 4th electrode 13 all include horizontal segment and vertical
Section, vertical section is vertically connected on the two ends of unit of an arrester II 3, and horizontal segment is connected with vertical section, and parallel to unit of an arrester
II 3 are inwardly arranged.By first electrode 5 and second electrode 6, second electrode 6 and the 3rd electrode 7, the 4th electrode 12 and the 5th electricity
The air gap between pole 13 forms series connection portable protective gaps and portable protective gaps in parallel respectively.
In conjunction with Fig. 2, unit of an arrester includes core body 21, full skirt shape insulating coating 22, pressure cap 24, bolt 25 and support bar
23.Zinc oxide resistance sheet and conductive member are installed by bolt and are integrated by core body 21, and in full skirt shape insulating coating 22；
It is arranged with two support bars 23 in the axial direction between core body 21 and full skirt shape insulating coating 22.Core body 21 and the insulation of full skirt shape
The two ends of overcoat 22 are provided with pressure cap 24, compress with by bolt 25.The two ends of support bar 23 are fixing with corresponding pressure cap 24 respectively
It is connected.Support bar 23 adopts insulating bar.Insulative pipe sleeve and full skirt shape insulating coating, all using post-cure elastomeric material, increased
The performance of elastomeric material, it is to avoid the damage causing when core body 21 together vulcanizes, and when partial component breaks down, only need by
Spark gap is taken apart and is carried out part and change, and need not replace overall unit of an arrester, easy to maintenance, and reduces cost.
Wherein, post-cure elastomeric material adopts the raw material preparation of following weight proportion：45 parts of butadiene rubber, butyronitrile rubber
35 parts of glue, 20 parts of white carbon black, 2 parts of zinc oxide, 2 parts of stearic acid, 12 parts of paraffin oil, 0.5 part of rubber accelerator M, rubber promotees
Enter 0.8 part of agent DM, 2.8 parts of antioxidant D NP, 0.2 part of antioxidant MB, 3 parts of sulfur.
The preparation process of insulative pipe sleeve and full skirt shape insulating coating is as follows：
（1）Butadiene rubber, nitrile rubber and white carbon black are carried out dispensing, mixing；
（2）Then zinc oxide, stearic acid, paraffin oil, antioxidant D NP, antioxidant MB are pressed formula mix homogeneously, add step
（1）Material in, kneaded；
（3）Successively add rubber accelerator DM and rubber accelerator M, kneaded successively；
（4）Add sulfur by formula ratio, be then filled with presulfurization mould, be placed in vulcanizer, at 130 DEG C, vulcanize 2min, rise
Cut overlap after mould, make rubber sleeve semi-finished product；Semi-finished product are placed in mould, and are positioned in vulcanizer, 130
Carry out post-cure 2min, sulfidization molding at DEG C.
The elastomeric material resistance value preparing reaches 80M Ω Km, peak torque 0.888Nm.
Claims (9)
1. a kind of spark gap it is characterised in that：Including insulator chain, unit of an arrester I, unit of an arrester II, unit of an arrester
IIIth, first electrode, second electrode and firm banking；Described unit of an arrester I, unit of an arrester II are located at described insulator chain
Lower section, and the upper end of unit of an arrester I, unit of an arrester II is connected with the two ends of described insulator chain respectively；Described spark gap
The upper end of element III is connected with the lower end of described unit of an arrester II；The lower end of described unit of an arrester I is to being externally provided with described
One electrode；The one of the nearly unit of an arrester in upper end I of described unit of an arrester III is laterally externally provided with described second electrode, and described
Two electrodes are relative with first electrode；The lower end of described unit of an arrester III is fixed on described firm banking.
2. spark gap according to claim 1 it is characterised in that：Described unit of an arrester I, unit of an arrester II are along described
The axis of insulator chain is symmetrically set in below the two ends of described insulator chain, and is in 60 ° with the angle of insulator chain；Described keep away
Thunder device element III is below described unit of an arrester II and perpendicular with described insulator chain；Described unit of an arrester II, keep away
Pass through wire between thunder device element III to be connected.
3. spark gap according to claim 3 it is characterised in that：The outside two ends of described unit of an arrester II are provided with relatively
4th electrode and the 5th electrode；The lower end of described unit of an arrester III is to being externally provided with the 3rd electrode, and described 3rd electrode and
Two electrodes are relatively.
4. spark gap according to claim 3 it is characterised in that：It is provided with insulative pipe sleeve outside described wire；Described lightning-arrest
It is provided with spring between device element II and unit of an arrester III；Length when described spring extends naturally is less than described insulative pipe sleeve
Length.
5. spark gap according to claim 4 it is characterised in that：Pass through between described unit of an arrester III and firm banking
Spring connects.
6. spark gap according to claim 5 it is characterised in that：Described unit of an arrester I, unit of an arrester II, lightning-arrest
Device element III all includes core body, full skirt shape insulating coating, pressure cap, bolt and support bar；Described core body is exhausted located at described full skirt shape
In edge overcoat；It is arranged with two support bars in the axial direction between described core body and full skirt shape insulating coating；Described core body with
Full skirt shape insulating coating be respectively arranged at two ends with described pressure cap, with by described bolt presses；The two ends of described support bar are respectively
It is fixedly linked with corresponding pressure cap.
7. spark gap according to claim 6 it is characterised in that：Described insulative pipe sleeve and full skirt shape insulating coating all adopt
Post-cure elastomeric material.
8. spark gap according to claim 7 it is characterised in that：Described post-cure elastomeric material is joined by following weight
The raw material preparation of ratio：45 parts of butadiene rubber, 35 parts of nitrile rubber, 20 parts of white carbon black, 2 parts of zinc oxide, 2 parts of stearic acid, paraffin
12 parts of oil, 2.8 parts of 0.8 part of 0.5 part of rubber accelerator M, rubber accelerator DM, antioxidant D NP, 0.2 part of antioxidant MB,
3 parts of sulfur.
9. spark gap according to claim 7 it is characterised in that：Described insulative pipe sleeve and full skirt shape insulating coating pass through with
Lower section method preparation：
（1）Described butadiene rubber, nitrile rubber and white carbon black are carried out dispensing, mixing；
（2）Then described zinc oxide, stearic acid, paraffin oil, antioxidant D NP, antioxidant MB are pressed formula mix homogeneously, add step
Suddenly（1）Material in, kneaded；
（3）Successively add rubber accelerator DM and rubber accelerator M, kneaded successively；
（4）Add sulfur by formula ratio, be then filled with presulfurization mould, be placed in vulcanizer, at 130 DEG C, vulcanize 2min, rise
Cut overlap after mould, make rubber sleeve semi-finished product；Semi-finished product are placed in mould, and are positioned in vulcanizer, 130
Carry out post-cure 2min, sulfidization molding at DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226761.4A CN106451080B (en) | 2016-12-27 | 2016-12-27 | A kind of arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226761.4A CN106451080B (en) | 2016-12-27 | 2016-12-27 | A kind of arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451080A true CN106451080A (en) | 2017-02-22 |
| CN106451080B CN106451080B (en) | 2017-11-03 |
Family
ID=58215630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226761.4A Active CN106451080B (en) | 2016-12-27 | 2016-12-27 | A kind of arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451080B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| 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 |
| CN201478689U (en) * | 2009-08-25 | 2010-05-19 | 山东迅实电气有限公司 | Lighting-protection device for electric railway traction power supply system |
| CN204012615U (en) * | 2014-08-21 | 2014-12-10 | 国家电网公司 | A kind of Broken of Overhead Insulation Lines By Lightning protector |
| CN104600567A (en) * | 2015-02-02 | 2015-05-06 | 国网电力科学研究院武汉南瑞有限责任公司 | Alternating current electric transmission line lightning flashover restriction method and device |
| CN105355342A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司电力科学研究院 | Line lightning arrester |
| CN205140663U (en) * | 2015-10-18 | 2016-04-06 | 丹东电力设备厂 | Arrester in fixed outer clearance |
| CN206313286U (en) * | 2016-12-27 | 2017-07-07 | 国网江苏省电力公司经济技术研究院 | A kind of arrester |
-
2016
- 2016-12-27 CN CN201611226761.4A patent/CN106451080B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| 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 |
| CN201478689U (en) * | 2009-08-25 | 2010-05-19 | 山东迅实电气有限公司 | Lighting-protection device for electric railway traction power supply system |
| CN204012615U (en) * | 2014-08-21 | 2014-12-10 | 国家电网公司 | A kind of Broken of Overhead Insulation Lines By Lightning protector |
| CN104600567A (en) * | 2015-02-02 | 2015-05-06 | 国网电力科学研究院武汉南瑞有限责任公司 | Alternating current electric transmission line lightning flashover restriction method and device |
| CN205140663U (en) * | 2015-10-18 | 2016-04-06 | 丹东电力设备厂 | Arrester in fixed outer clearance |
| CN105355342A (en) * | 2015-12-10 | 2016-02-24 | 国网四川省电力公司电力科学研究院 | Line lightning arrester |
| CN206313286U (en) * | 2016-12-27 | 2017-07-07 | 国网江苏省电力公司经济技术研究院 | A kind of arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106451080B (en) | 2017-11-03 |
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