CN104269292B - A kind of insulation barrier formula livewire work crowbar switch - Google Patents
A kind of insulation barrier formula livewire work crowbar switch Download PDFInfo
- Publication number
- CN104269292B CN104269292B CN201410584262.7A CN201410584262A CN104269292B CN 104269292 B CN104269292 B CN 104269292B CN 201410584262 A CN201410584262 A CN 201410584262A CN 104269292 B CN104269292 B CN 104269292B
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- cylindrical shape
- insulation
- electrode
- insulating bar
- shape insulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
Abstract
The present invention relates to a kind of insulation barrier formula livewire work crowbar switch. This fundamental idea of the invention is by cutting off the electric arc producing when switch disconnects by 90 insulation barriers of spending rotation in explosion chamber, thereby plays the effect of extinguishing arc. The present invention mainly comprises: external electrode, interior electrode, dead ring, flexible wire, insulation transparent cylinder, explosion chamber's steam vent, explosion chamber, insulation pushing rod, cylindrical shape insulating bar, spring, insulation barrier, operating mechanism, crowbar switch involved in the present invention is compared with the switch of other type, dual extinguishing arc effect that the Air Flow that simultaneously utilizes insulation barrier and insulation barrier to cause in rotation process brings, improve extinguishing arc effect, and easy and simple to handle. The crowbar switch that the present invention proposes can be widely used in exceeding height, extra-high voltage electrified operation time temporary ground wire articulate or for the way switch that is close to of 10kV line live-line work.
Description
Technical field
The present invention relates to a kind of insulation barrier formula livewire work crowbar switch, be mainly used in super-pressure, UHV transmissionWhen line maintenance, articulate temporary ground wire, can effectively avoid high-tension line ablation, or for 10kV line live-line work Bang roadSwitch, protection operating personnel's safety.
Background technology
In the time of interruption maintenance, there is certain residual voltage, especially common-tower double-return power transmission line in super-pressure or UHV transmission lineRoad, often adopts a loop line road operation, and the working method of another loop line road interruption maintenance, owing to there being electric field between double back transmission lineAnd the intercoupling of magnetic field, will on maintenance circuit, induce larger induced voltage and induced-current. For guaranteeing maintainerPersonal safety, must articulate temporary ground wire at high voltage line maintenance point. Because induced voltage is high, temporary ground wire is in contactAnd depart from when high-voltage line and will produce very strong electric arc and dash current, this is serious threat maintainer's safety, and to wireAlso can cause ablation. In the time of 10kV hot line maintenance, also need to increase and be close to way switch, eliminate live wire and non-chargedThe electric arc that wire produces when connecting or disconnecting, protection operating personnel's personal safety.
The present invention is directed to super-pressure, especially UHV transmission line maintenance temporary ground wire articulate and 10kV circuit chargedThe needs of operation, invent a kind of insulation barrier formula crowbar switch, can effectively eliminate that live wire contacts with non-live wire or disconnectedThe electric arc producing while opening, guardwire and operating personnel's safety.
Summary of the invention
The present invention solves the existing technical problem of prior art; Proposition is mainly used in super-pressure, extra-high voltage is defeatedWhen electric line articulates temporary ground wire, potential arc transfer between hook and high-voltage line is to arc chamber, and quick in explosion chamberBlow-out, can effectively avoid high-tension line ablation; Or for the way switch that is close to of 10kV hot line maintenance, protection operating personnelThe one insulation screen formula livewire work crowbar switch of safety.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of insulation barrier formula livewire work crowbar switch, is characterized in that, comprises an insulation transparent cylinder, arrangesTwo cylindrical section shape insulating bars in insulation transparent cylinder, i.e. the first cylindrical shape insulating bar and the second cylindrical shape insulating bar; FirstCylindrical shape insulating bar is from the insertion of insulation transparent cylinder top and be all positioned at insulation transparent cylinder, the first cylindrical shape insulating bar twoEnd is by insulating supporting ring seal; The second cylindrical shape insulating bar inserts from insulation transparent cylinder bottom and part is arranged on insulation thoroughlyOutside bright cylinder; The part that the second cylindrical shape insulating bar is positioned at insulation transparent cylinder forms with insulating supporting ring seal respectively up and downAn explosion chamber; The top outer wall of explosion chamber is evenly provided with the some and extraneous explosion chamber's steam vent communicating; Explosion chamber establishes at middle partThere is one for explosion chamber being divided into the insulation barrier of two chambers; It is exhausted that two external electrodes are separately positioned on the first cylindrical shapeThe outer wall of edge masthead end and the second cylindrical shape insulating bar; Two interior electrodes be separately positioned in the first cylindrical shape insulating bar andIn the second cylindrical shape insulating bar, its electrode that is positioned at the second cylindrical shape insulating bar can contact with another motor or be de-From; The external electrode that is arranged on the first cylindrical shape insulating bar top passes through soft with the interior electrode being arranged in the first cylindrical shape insulating barProperty connect wire connect; Be arranged on the second cylindrical shape insulating bar outer wall external electrode be arranged in the second cylindrical shape insulating barInterior electrode by flexibly connect wire connect.
In above-mentioned a kind of insulation barrier formula livewire work crowbar switch, two external electrodes be respectively the first external electrode andThe second external electrode; Two interior electrodes are respectively the first interior electrode and the second inner electrodes; Wherein, the first external electrode is metallic rod, insertsEnter after the insulating supporting ring on the first cylindrical shape insulating bar top fixing; The first interior electrode is metallic rod and is fixed on the first cylindrical shapeOn the insulating supporting ring of insulating bar bottom, and be connected with the first interior electrode by flexibly connecting wire; The first interior electrode can beOn insulating supporting ring, move up and down, and spring supporting is passed through in bottom; The second inner electrode is metallic rod, and successively through explosion chamberTop and the insulating supporting ring of bottom; And can move up and down make the second inner electrode top can with the end of the first interior electrodeEnd in contact or separation; An insulation pushing rod is fixed in the second inner electrode bottom, promotes on the second inner electrode by insulation pushing rodLower motion.
In above-mentioned a kind of insulation barrier formula livewire work crowbar switch, described insulation barrier is an insulation board, instituteState insulation board tail end and be fixed on the inwall of the second cylindrical shape insulating bar by a torsionspring, and can pass through the second inner electrode5 pushed open rear along torsionspring rotation, and will after closure can move downward to torsionspring on the second inner electrode top timeExplosion chamber is divided into two chambers.
Summary is got up, main creationary of the present invention:
1, offer transparent window at switch two electrode places, can clearly observe the situation of cut-offfing of switch fracture;
2, in cylindrical shape insulating bar, establish explosion chamber, establish insulation barrier in explosion chamber, insulation barrier is in spring and movementUnder the acting in conjunction of electrode, can rotate, thus breaking arc;
3, open multiple breeder tubes at explosion chamber's front and rear wall, when switch disconnects, when insulation barrier quick rotation, by explosion chamberThe ion that interior electric arc produces is from aperture fan-out;
4, below insulating bar, be provided with operating mechanism, under the effect of spring, traveling electrode can move up and down fast, realizesThe function of opening, break of switch.
Therefore, tool of the present invention has the following advantages: utilize insulation barrier and insulation barrier to cause in rotation process simultaneouslyDual extinguishing arc effect that Air Flow brings, has improved extinguishing arc effect, and easy and simple to handle. Can be widely used in exceeding height, spyWhen high-voltage hot-line work, temporary ground wire articulates or for the way switch that is close to of 10kV line live-line work.
Brief description of the drawings
Accompanying drawing 1a is main TV structure schematic diagram switch closed condition of the present invention.
Accompanying drawing 1b is main TV structure schematic diagram switch off state of the present invention.
Accompanying drawing 2a is structure main TV structure schematic diagram in explosion chamber's in the present invention.
Accompanying drawing 2b is the left TV structure schematic diagram of Fig. 2 a.
Accompanying drawing 2c is the plan structure schematic diagram of Fig. 2 a.
Accompanying drawing 3a is the main TV structure schematic diagram of insulation barrier structure in the present invention.
Accompanying drawing 3b is the left TV structure schematic diagram of Fig. 3 a.
Accompanying drawing 3c is the plan structure schematic diagram of Fig. 3 a.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the present invention is described in further detail.
One, paper concrete structure of the present invention once:
As shown in Fig. 1 a to Fig. 1 b, the present invention includes an insulation transparent cylinder 6, be arranged in insulation transparent cylinder 6Two cylindrical section shape insulating bars 11, i.e. the first cylindrical shape insulating bar and the second cylindrical shape insulating bar; The first cylindrical shape insulating bar is from absolutelyEdge transparent cylinder 6 tops are inserted and are all positioned at insulation transparent cylinder 6, the first cylindrical shape insulating bar two ends and pass through insulating supportingRing 2 sealings; The second cylindrical shape insulating bar inserts from insulation transparent cylinder 6 bottoms and part is arranged on insulation transparent cylinder 6.
As shown in Fig. 2 a to Fig. 2 c, the second cylindrical shape insulating bar is positioned at the part of insulation transparent cylinder 6 and uses respectively up and down2 sealings of insulating supporting ring form an explosion chamber 8; The top outer wall of explosion chamber 8 is evenly provided with the some and extraneous extinguishing arc communicatingChamber steam vent 7; 8 middle parts, explosion chamber are provided with one for explosion chamber 8 being divided into the insulation barrier 13 of two chambers; Outside twoElectrode is separately positioned on the outer wall of the first cylindrical shape insulating bar top and the second cylindrical shape insulating bar; Two interior electrodes are established respectivelyPut in the first cylindrical shape insulating bar and in the second cylindrical shape insulating bar, it is positioned at the electrode of the second cylindrical shape insulating barCan contact with another motor or depart from; Be arranged on the external electrode on the first cylindrical shape insulating bar top and be arranged on the first circleInterior electrode in tubular insulating bar connects by flexibly connecting wire 3; Be arranged on the dispatch from foreign news agency of the outer wall of the second cylindrical shape insulating barThe utmost point is connected by flexibly connecting wire 3 with the interior electrode being arranged in the second cylindrical shape insulating bar; 8 bend part generations of explosion chamberShow this part and made by solid insulation material, and filler.
Two external electrodes are respectively the first external electrode 1 and the second external electrode 15; Two interior electrodes are respectively the first interior electrodes 4With the second inner electrode 5; Wherein, the first external electrode 1 is metallic rod, inserts the insulating supporting ring 2 on the first cylindrical shape insulating bar topRear fixing; The first interior electrode 4 is metallic rod and is fixed on the insulating supporting ring 2 of the first cylindrical shape insulating bar bottom, and passes throughFlexibly connecting wire 3 is connected with the first interior electrode 4; The first interior electrode 4 can move up and down on insulating supporting ring 2, and the endEnd supports by spring 12; The second inner electrode 5 is metallic rod, and successively through the top of explosion chamber 8 and the insulating supporting of bottomRing 2; And can move up and down the top of the second inner electrode 5 can or be separated with the bottom contact of the first interior electrode 4; In secondAn insulation pushing rod 10 is fixed in electrode 5 bottoms, promotes the second inner electrode 5 move up and down by insulation pushing rod 10.
As shown in Fig. 3 a to Fig. 3 c, insulation barrier 13 is an insulation board, and insulation board tail end is by a torsionspring 14Be fixed on the inwall of the second cylindrical shape insulating bar, and can pushed open and rotate along torsionspring 14 afterwards by the second inner electrode 5,And can be in the time that the second inner electrode 5 tops move downward to torsionspring 14 after closure just explosion chamber 8 be divided into two chambers.
Two, while work,
When switch is during in closure state, insulation barrier closes traveling electrode under spring action in the outlet of explosion chamberClose.
As shown in Figure 1a, switch closed procedure process is:
1, under the effect of operating mechanism, movable electrode (5) moves up fast, promotes insulation barrier and turns clockwiseMoving;
2, traveling electrode (5) continues to move up, and in visual window, contacts with electrode (4), realizes the closure of switch.
As shown in Figure 1 b, switch opening operation process:
1, under the effect of operating mechanism, movable electrode (5) moves down fast, and departs from electrode (4), if nowBetween fracture, voltage exceedes the dielectric strength of air between fracture, and electrode will exist electric arc between (4,5).
2, movable electrode (5) continues to move down, and when electrode (5) moves to explosion chamber's below moment, insulation barrier is at oneselfUnder the effect of body spring, counterclockwise rotate, and by the port closing of movable electrode (5), thereby cut off between electrode (4,5)Electric arc; Meanwhile, in the time that insulation barrier rotates, drive extinguishing arc indoor air flows, the ion that electric arc is produced blows out explosion chamber, addsThe process of speed arc extinction.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit. Technology neck under the present inventionThe technical staff in territory can make various amendments or supplements or adopt similar mode to replace described specific embodimentGeneration, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (2)
1. an insulation barrier formula livewire work crowbar switch, is characterized in that, comprises an insulation transparent cylinder (6), establishesPut two cylindrical section shape insulating bars (11) in insulation transparent cylinder (6), the first cylindrical shape insulating bar and the second cylindrical shape are exhaustedEdge bar; The first cylindrical shape insulating bar is from the insertion of insulation transparent cylinder (6) top and be all positioned at insulation transparent cylinder (6), theOne cylindrical shape insulating bar two ends are sealed by insulating supporting ring (2); The second cylindrical shape insulating bar is from insulation transparent cylinder (6) bottomInsert and be partly arranged on outside insulation transparent cylinder (6); The second cylindrical shape insulating bar is positioned at the part of insulation transparent cylinder (6)Form an explosion chamber (8) with insulating supporting ring (2) sealing respectively up and down; The top outer wall of explosion chamber (8) is evenly provided with someThe explosion chamber's steam vent (7) communicating with the external world; Middle part, explosion chamber (8) is provided with one for explosion chamber (8) being divided into twoThe insulation barrier (13) of chamber; Two external electrodes are separately positioned on the first cylindrical shape insulating bar top and the insulation of the second cylindrical shapeThe outer wall of bar; Two interior electrodes are separately positioned in the first cylindrical shape insulating bar and in the second cylindrical shape insulating bar, and it is positioned atInterior electrode in the second cylindrical shape insulating bar can with another electrode contact or disengaging; Be arranged on the first cylindrical shape insulating barThe external electrode on top is connected by flexibly connecting wire (3) with the interior electrode being arranged in the first cylindrical shape insulating bar; Be arranged onThe external electrode of the outer wall of the second cylindrical shape insulating bar be arranged on interior electrode in the second cylindrical shape insulating bar by flexibly connectingWire (3) connects;
Described insulation barrier (13) is an insulation board, and described insulation board tail end is fixed on second by a torsionspring (14)The inwall of cylindrical shape insulating bar, and can be pushed open by the second inner electrode (5) rear along torsionspring (14) rotation, and canIn the time that moving downward to torsionspring (14), the second inner electrode (5) top, after closure, explosion chamber (8) are divided into two chambers.
2. a kind of insulation barrier formula livewire work crowbar switch according to claim 1, is characterized in that, outside twoElectrode is respectively the first external electrode (1) and the second external electrode (15); Two interior electrodes are respectively in the first interior electrode (4) and secondElectrode (5); Wherein, the first external electrode (1) is metallic rod, inserts after the insulating supporting ring (2) on the first cylindrical shape insulating bar topFixing; The first interior electrode (4) is that metallic rod and the insulating supporting ring (2) that is fixed on the first cylindrical shape insulating bar bottom are upper, and logicalCross and flexibly connect wire (3) and be connected with the first interior electrode (4); The first interior electrode (4) can do up and down on insulating supporting ring (2)Motion, and bottom is supported by spring (12); The second inner electrode (5) is metallic rod, and successively through the top of explosion chamber (8) andThe insulating supporting ring (2) of bottom; And can move up and down and make that the top of the second inner electrode (5) can be with the first interior electrode (4)Bottom contact or separation; An insulation pushing rod (10) is fixed in the second inner electrode (5) bottom, promotes by insulation pushing rod (10)The second inner electrode (5) moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584262.7A CN104269292B (en) | 2014-10-27 | 2014-10-27 | A kind of insulation barrier formula livewire work crowbar switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410584262.7A CN104269292B (en) | 2014-10-27 | 2014-10-27 | A kind of insulation barrier formula livewire work crowbar switch |
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| Publication Number | Publication Date |
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| CN104269292A CN104269292A (en) | 2015-01-07 |
| CN104269292B true CN104269292B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410584262.7A Active CN104269292B (en) | 2014-10-27 | 2014-10-27 | A kind of insulation barrier formula livewire work crowbar switch |
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| CN (1) | CN104269292B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887222B (en) * | 2017-12-15 | 2020-09-08 | 国网江苏省电力有限公司淮安供电分公司 | Permanent-magnet arc extinguishing live working arc extinguishing switch |
| CN113471873B (en) * | 2021-07-07 | 2023-03-31 | 国网辽宁省电力有限公司营口供电公司 | 66 KV live-line arc breaking and extinguishing device and manufacturing process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473768Y (en) * | 2001-02-23 | 2002-01-23 | 上海电力物资有限公司电力线路器材厂 | Single phase capacity current breaker |
| CN201797218U (en) * | 2010-09-25 | 2011-04-13 | 西北电网有限公司 | Temporary grounding line hanging device having arc transfer and arc extinction functions |
| CN102447233A (en) * | 2010-10-15 | 2012-05-09 | 曾林平 | Arc-transferring and arc-suppressing device for temporary earth wire |
| CN104091704A (en) * | 2014-06-30 | 2014-10-08 | 深圳供电局有限公司 | Spring power self-locking device of arc extinction switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130299328A1 (en) * | 2012-05-14 | 2013-11-14 | Raytheon Company | Micro electro mechanical system (mems) microwave switch structures |
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2014
- 2014-10-27 CN CN201410584262.7A patent/CN104269292B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473768Y (en) * | 2001-02-23 | 2002-01-23 | 上海电力物资有限公司电力线路器材厂 | Single phase capacity current breaker |
| CN201797218U (en) * | 2010-09-25 | 2011-04-13 | 西北电网有限公司 | Temporary grounding line hanging device having arc transfer and arc extinction functions |
| CN102447233A (en) * | 2010-10-15 | 2012-05-09 | 曾林平 | Arc-transferring and arc-suppressing device for temporary earth wire |
| CN104091704A (en) * | 2014-06-30 | 2014-10-08 | 深圳供电局有限公司 | Spring power self-locking device of arc extinction switch |
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| Publication number | Publication date |
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| CN104269292A (en) | 2015-01-07 |
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