CN107887222A - Permanent magnetism arc extinguishing livewire work crowbar switch - Google Patents
Permanent magnetism arc extinguishing livewire work crowbar switch Download PDFInfo
- Publication number
- CN107887222A CN107887222A CN201711350613.8A CN201711350613A CN107887222A CN 107887222 A CN107887222 A CN 107887222A CN 201711350613 A CN201711350613 A CN 201711350613A CN 107887222 A CN107887222 A CN 107887222A
- Authority
- CN
- China
- Prior art keywords
- support ring
- insulating bar
- electrode
- fixing axle
- spring
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Abstract
The invention discloses a kind of permanent magnetism arc extinguishing livewire work crowbar switch, the crowbar switch is mainly made up of external electrode, interior electrode, support ring, connecting line, insulating bar, insulated tension pole, spring, permanent magnet, lockable mechanism assembling；The present invention passes through electric arc caused by the permanent magnetic field roof-cut resistence disconnection of explosion chamber, so as to play a part of extinguishing arc, dual extinguishing arc effect caused by insulating supporting ring and permanent magnet is utilized simultaneously, improve extinguishing arc effect, and it is easy to operate, it is widely used in temporary ground wire mounting or the by-pass switch for 10kV line live-line works when high pressure, extra-high voltage electrified operation.
Description
Technical field
The present invention relates to crowbar switch, and in particular to a kind of permanent magnetism arc extinguishing livewire work crowbar switch.
Background technology
Ultra-high-tension power transmission line is in interruption maintenance in the presence of certain residual voltage.In order to ensure the safety of maintainer, in high pressure
Line maintenance point must mount temporary ground wire.Because induced voltage is high, temporary ground wire will when contacting and departing from high-voltage line
Produce very strong electric arc and dash current.In 10kV distribution line live workings, it is also desirable to increase by-pass switch, eliminate powered
Wire is connected with non-band electric lead or electric arc caused by disconnecting.
The content of the invention
The purpose of the present invention is：A kind of permanent magnetism arc extinguishing livewire work crowbar switch is designed, is examined for ultra-high-tension power transmission line
The needs of temporary ground wire mounting and 10kV line live-line works are repaiied, effectively eliminate live wire and non-band electrical leads contacts or disconnected
Caused electric arc is opened, protects wire and the safety of operating personnel.
The present invention technical solution be：The permanent magnetism arc extinguishing livewire work includes the first insulating bar, the with crowbar switch
One external electrode, the first support ring, the first connecting line, the second support ring, electrode, the second insulating bar, the 3rd insulating bar, in first
Two external electrodes, three-support ring, the second connecting line, the 4th support ring group, the first permanent magnet, the second permanent magnet, the second inner electrode,
5th support ring and insulated tension pole；Second insulating bar is connected to the top of the 3rd insulating bar, and it is exhausted that the first insulating bar is connected to second
The top of edge bar, the first support ring are arranged on the top of the first insulating bar, and the second support ring is arranged on the bottom of the first insulating bar,
Three-support ring is fixed in the 3rd insulating bar, and the 4th support ring group, which is located above three-support ring, is fixed on the 3rd insulating bar
Interior, the 4th support ring group along the vertical some support rings for stretching direction arrangement of the 3rd insulating bar by forming, in each support ring symmetrically
Embedded with the first permanent magnet and the second permanent magnet, the 5th support ring is arranged on the end of the 3rd insulating bar；The first external electrode passes through
One support ring is fixed in the first insulating bar；Electrode is by the first spring and the second support ring elastic connection in first, in first
Electrode is flexibly connected with the first external electrode by the first connecting line；The second inner electrode movably through the 4th support ring group, second
Interior electrode passes through second spring and three-support ring elastic connection；Insulated tension pole is arranged in the 3rd insulating bar through the 5th support ring
Interior, the top of insulated tension pole is fixedly connected with the bottom of the second inner electrode；The second external electrode is fixed in the 3rd insulating bar side wall,
It is flexibly connected by the second connecting line and the second inner electrode.
Wherein, the first external electrode, the second external electrode, electrode, the second inner electrode, the first connecting line and the second connection in first
Line is benign conductor.
Wherein, the first insulating bar, the second insulating bar, the 3rd insulating bar, the first support ring, the second support ring, the 3rd support
Ring, the 4th support ring group, the 5th support ring and insulated tension pole are insulator.
Wherein, the second insulating bar is transparent insulator.
Wherein, the first insulating bar, the second insulating bar, the 3rd insulating bar are hollow tube.
Wherein, lockable mechanism is installed on the 5th support ring-side wall, described lockable mechanism includes locking button, the 3rd bullet
Spring, locking moving lever, the first fixing axle, cavity, the second fixing axle, angle spring and the 3rd fixing axle；Locking button passes through the 3rd bullet
Spring and the 5th support ring elastic connection, insulated tension pole are built-in with cavity, be fixed with cavity the first fixing axle, the second fixing axle and
3rd fixing axle, the rotation of locking moving lever are fixed in the first fixing axle, and angle spring is fixed in the second fixing axle, and angle spring passes through the
Three fixing axles are spacing to make locking moving lever keep stretching out the state of cavity and contradict locking button.
The present invention has advantages below：
1st, the crowbar switch is used for ultra-high-tension power transmission line mounting temporary ground wire, effectively avoids high-tension line ablation；Or it is used for
The by-pass switch of 10kV distribution line live workings, protect the safety of operating personnel.
2nd, the second insulating bar is transparent, can clearly observe the situation of cut-offfing of switch fracture, and operation is concise directly perceived.
3rd, in the 3rd insulating bar, the second inner electrode is movably through the 4th support ring group, in each support ring symmetrically
Embedded with the first permanent magnet and the second permanent magnet, the magnetic field with electric arc vertical direction is effectively produced, makes lengthening arc extinguishing distance, is strengthened
Arc extinguishing ability.
4th, the second inner electrode can accelerate second by second spring and three-support ring elastic connection in breaking course
The movement velocity of interior electrode, strengthen arc extinguishing ability.
5th, lockable mechanism is provided with the 5th support ring, when electrode and the second inner electrode contact in first, auxiliary line
Locking during connection.
6th, using the insulation effect of the 4th support ring group, insulation effect of permanent magnetic field, and the 4th support ring group are increased
Triple extinguishing arcs, extinguishing arc effect is improved, easy to operate, temporary ground wire is mounted or is used for when being widely used in high-voltage hot-line work
The by-pass switch of 10kV line live-line works.
Brief description of the drawings
Fig. 1 is the front view structure switch closed condition schematic diagram of the present invention.
Fig. 2 is the front view structure switch off state schematic diagram of the present invention.
Fig. 3 is B-B section structure diagrams in Fig. 1.
Fig. 4 is lockable mechanism close-up schematic view in Fig. 1.
In figure：1 first insulating bar；11 the first external electrodes；12 first support rings；13 first connecting lines；14 second
Pushing out ring；15 first springs；Electrode in 16 first；2 second insulating bars；3 the 3rd insulating bars；31 the second external electrodes；32 the 3rd
Support ring；33 second connecting lines；34 the 4th support ring groups；The permanent magnets of 34a first；The permanent magnets of 34b second；35 second springs；
36 the second inner electrodes；4 the 5th support rings；41 insulated tension poles；42 locking buttons；43 the 3rd springs；44 locking moving levers；45
First fixing axle；46 cavitys；47 second fixing axles；48 jiaos of springs；49 the 3rd fixing axles.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, the permanent magnetism arc extinguishing livewire work includes the first insulating bar 1, the first external electrode with crowbar switch
11st, the first support ring 12, the first connecting line 13, electrode 16, the second insulating bar 2, the 3rd insulating bar in the second support ring 14, first
3rd, the second external electrode 31, three-support ring 32, the second connecting line the 33, the 4th support ring group 34, the first permanent magnet 34a, second forever
Magnet 34b, the second inner electrode 36, the 5th support ring 4 and insulated tension pole 41；Second insulating bar 2 is connected to the top of the 3rd insulating bar 3
End, the first insulating bar 1 are connected to the top of the second insulating bar 2, and the first support ring 12 is arranged on the top of the first insulating bar 1, the
Two support rings 14 are arranged on the bottom of the first insulating bar 1, and three-support ring 32 is fixed in the 3rd insulating bar 3, the 4th support ring
Group 34 is fixed in the 3rd insulating bar 3 positioned at the top of three-support ring 32, and the 4th support ring group 34 along the 3rd insulating bar 3 is vertical by stretching
Some support rings of direction arrangement are formed, and the first permanent magnet 34a and the second permanent magnet 34b is symmetrically embedded with each support ring,
5th support ring 4 is arranged on the end of the 3rd insulating bar 3；The first external electrode 11 is fixed on the first insulation by the first support ring 12
In bar 1；Electrode 16 is by the first spring 1 and the elastic connection of the second support ring 14 in first, the dispatch from foreign news agency of electrode 16 and first in first
Pole 11 is flexibly connected by the first connecting line 13；The second inner electrode 36 is movably through the 4th support ring group 34, the second inner electrode
36 pass through second spring 35 and the elastic connection of three-support ring 32；It is exhausted that insulated tension pole 41 through the 5th support ring 4 is arranged in the 3rd
In edge bar 3, the top of insulated tension pole 41 is fixedly connected with the bottom of the second inner electrode 36；It is exhausted that the second external electrode 31 is fixed on the 3rd
In the side wall of edge bar 3, it is flexibly connected by the second connecting line 33 with the second inner electrode 36.
Wherein, the first external electrode 11, electrode 16, the second inner electrode 36, the first connecting line 13 in the second external electrode 31, first
It is benign conductor with the second connecting line 33.
Wherein, the first insulating bar 1, the second insulating bar 2, the 3rd insulating bar 3, the first support ring 12, the second support ring 14,
It is insulator that three-support ring the 32, the 4th, which supports ring group 34, the 5th support ring 4 and insulated tension pole 41,.
Wherein, the second insulating bar 2 is transparent insulator.
Wherein, the first insulating bar 1, the second insulating bar 2, the 3rd insulating bar 3 are hollow tube.
As shown in figure 3, installing lockable mechanism in the side wall of the 5th support ring 4, described lockable mechanism includes locking button
42nd, the 3rd spring 43, locking moving lever 44, the first fixing axle 45, cavity 46, the second fixing axle 47, angle spring 48 and the 3rd are fixed
Axle 49；For locking button 42 by the 3rd spring 43 and the elastic connection of the 5th support ring 4, insulated tension pole 41 is built-in with cavity 46, empty
It is fixed with the first fixing axle 45, the second fixing axle 47 and the 3rd fixing axle 49 in chamber 46, the rotation of locking moving lever 44 is fixed on the
In one fixing axle 45, angle spring 48 is fixed in the second fixing axle 47, and angle spring 48 moves locking by the way that the 3rd fixing axle 49 is spacing
Bar 44 keeps stretching out the state of cavity 46 and contradicts locking button 42.
The course of work of the crowbar switch of the present invention is as follows：Fig. 1 is front view structure switch closed condition schematic diagram, and Fig. 2 is
Front view structure switch off state schematic diagram；When switch is off needing closure, i.e. Fig. 2 states, manually insulation is drawn
Bar 41 above pushes away, and manual insulated tension pole 41 drives the second inner electrode 36 to move up, and is contacted with electrode in first 16, manual insulated tension pole
41 further above push away, while the first spring 15 of compression and second spring 35, locking moving lever 44 contact with the 5th support ring 4, press
Contracting angle spring 48, locking moving lever 44 enters cavity 46, when reaching locking 42 position of button, the 3rd spring 43 of compression, is stuck in the
In five support rings 4, the contact condition of electrode 16 and the second inner electrode 36 in first is kept, reaches Fig. 1 states；Closed when switch is in
When conjunction state needs to disconnect, i.e. Fig. 1 states press locking button 42, the other hand pulls down insulated tension pole 41, locking button on the other hand
42 the 3rd springs 43 of compression, locking moving lever 44 enter cavity 46, and insulated tension pole 41 drives the second inner electrode 36 to move down, and with the
Electrode 16 departs from one, supports ring group 34 and the 4th to support permanent magnet 34a, 34b in ring group 34 in second spring the 35, the 4th
Triple arc quenching effects under, the second inner electrode 36 moves downward, and eventually arrives at Fig. 2 states.
Particular content described herein is only to spirit explanation for example of the invention.The technical field of the invention
Technical staff can be made various modifications or supplement to described particular content or be substituted using similar mode, but can't
Deviate the spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. permanent magnetism arc extinguishing livewire work crowbar switch, it is characterized in that：The crowbar switch includes the first insulating bar（1）, outside first
Electrode（11）, the first support ring（12）, the first connecting line（13）, the second support ring（14）, electrode in first（16）, second insulation
Bar（2）, the 3rd insulating bar（3）, the second external electrode（31）, three-support ring（32）, the second connecting line（33）, the 4th support ring group
（34）, the first permanent magnet（34a）, the second permanent magnet（34b）, the second inner electrode（36）, the 5th support ring（4）And insulated tension pole
（41）；Second insulating bar（2）It is connected to the 3rd insulating bar（3）Top, the first insulating bar（1）It is connected to the second insulating bar（2）
Top, the first support ring（12）Installed in the first insulating bar（1）Top, the second support ring（14）Installed in the first insulating bar
（1）Bottom, three-support ring（32）It is fixed on the 3rd insulating bar（3）It is interior, the 4th support ring group（34）Positioned at three-support ring
（32）The 3rd insulating bar is fixed in top（3）It is interior, the 4th support ring group（34）By along the 3rd insulating bar（3）It is vertical to stretch what direction was arranged
Some support rings are formed, and the first permanent magnet is symmetrically embedded with each support ring（34a）With the second permanent magnet（34b）, the 5th
Pushing out ring（4）Installed in the 3rd insulating bar（3）End；The first external electrode（11）Pass through the first support ring（12）It is exhausted to be fixed on first
Edge bar（1）It is interior；Electrode in first（16）Pass through the first spring（15）With the second support ring（14）Elastic connection, electrode in first
（16）With the first external electrode（11）Pass through the first connecting line（13）Flexible connection；The second inner electrode（36）Movably pass through the 4th
Pushing out ring group（34）, the second inner electrode（36）Pass through second spring（35）With three-support ring（32）Elastic connection；Insulated tension pole
（41）Through the 5th support ring（4）It is arranged in the 3rd insulating bar（3）It is interior, insulated tension pole（41）Top and the second inner electrode（36）
Bottom be fixedly connected；The second external electrode（31）It is fixed on the 3rd insulating bar（3）In side wall, pass through the second connecting line（33）With
Electrode in two（36）Flexible connection.
2. permanent magnetism arc extinguishing livewire work crowbar switch according to claim 1, it is characterized in that：In the 5th support ring（4）
Lockable mechanism is installed, described lockable mechanism includes locking button in side wall（42）, the 3rd spring（43）, locking moving lever
（44）, the first fixing axle（45）, cavity（46）, the second fixing axle（47）, angle spring（48）With the 3rd fixing axle（49）；Locking button
（42）Pass through the 3rd spring（43）With the 5th support ring（4）Elastic connection, insulated tension pole（41）It is built-in with cavity（46）, cavity
（46）Inside it is fixed with the first fixing axle（45）, the second fixing axle（47）With the 3rd fixing axle（49）, locking moving lever（44）Rotation
It is fixed on the first fixing axle（45）On, angle spring（48）It is fixed on the second fixing axle（47）On, angle spring（48）Pass through the 3rd fixing axle
（49）It is spacing to make locking moving lever（44）Keep stretching out cavity（46）State and contradict locking button（42）.
3. the permanent magnetism arc extinguishing livewire work crowbar switch according to claim 1, it is characterized in that：The first external electrode（11）、
The second external electrode（31）, electrode in first（16）, the second inner electrode（36）, the first connecting line（13）With the second connecting line（33）
For benign conductor.
4. the permanent magnetism arc extinguishing livewire work crowbar switch according to claim 1, it is characterized in that：First insulating bar（1）、
Second insulating bar（2）, the 3rd insulating bar（3）, the first support ring（12）, the second support ring（14）, three-support ring（32）, the 4th
Support ring group（34）, the 5th support ring（4）And insulated tension pole（41）It is insulator.
5. permanent magnetism arc extinguishing livewire work crowbar switch according to claim 4, it is characterized in that：Second insulating bar（2）For
Transparent insulator.
6. the permanent magnetism arc extinguishing livewire work crowbar switch according to claim 1, it is characterized in that：First insulating bar（1）、
Second insulating bar（2）, the 3rd insulating bar（3）It is hollow tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711350613.8A CN107887222B (en) | 2017-12-15 | 2017-12-15 | Permanent-magnet arc extinguishing live working arc extinguishing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711350613.8A CN107887222B (en) | 2017-12-15 | 2017-12-15 | Permanent-magnet arc extinguishing live working arc extinguishing switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107887222A true CN107887222A (en) | 2018-04-06 |
| CN107887222B CN107887222B (en) | 2020-09-08 |
Family
ID=61771550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711350613.8A Active CN107887222B (en) | 2017-12-15 | 2017-12-15 | Permanent-magnet arc extinguishing live working arc extinguishing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107887222B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728058Y (en) * | 2004-05-14 | 2005-09-21 | 台州超固电气有限公司 | Hot-line arc extinguishing conduction operating rod |
| CN202696049U (en) * | 2012-05-31 | 2013-01-23 | 富阳市供电局 | Electrodynamic type insulating operating rod |
| 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 |
| CN104269292A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Insulating barrier type live working arc suppression switch |
| CN204654041U (en) * | 2015-06-02 | 2015-09-23 | 梅花（晋江）伞业有限公司 | A kind of automatic umbrella |
| CN105280406A (en) * | 2013-04-22 | 2016-01-27 | 江苏省电力公司常州供电公司 | Safe-to-use single phase air by-pass switch |
| CN105513884A (en) * | 2014-10-14 | 2016-04-20 | 杨永清 | Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance |
| CN206022242U (en) * | 2016-08-26 | 2017-03-15 | 国家电网公司 | A kind of relay contacts mechanism of arc protection |
| CN207663982U (en) * | 2017-12-15 | 2018-07-27 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
-
2017
- 2017-12-15 CN CN201711350613.8A patent/CN107887222B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728058Y (en) * | 2004-05-14 | 2005-09-21 | 台州超固电气有限公司 | Hot-line arc extinguishing conduction operating rod |
| CN202696049U (en) * | 2012-05-31 | 2013-01-23 | 富阳市供电局 | Electrodynamic type insulating operating rod |
| CN105280406A (en) * | 2013-04-22 | 2016-01-27 | 江苏省电力公司常州供电公司 | Safe-to-use single phase air by-pass switch |
| 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 |
| CN105513884A (en) * | 2014-10-14 | 2016-04-20 | 杨永清 | Manufacturing method of vacuum arc extinguishing chamber especially for direct-current switch electric appliance |
| CN104269292A (en) * | 2014-10-27 | 2015-01-07 | 武汉大学 | Insulating barrier type live working arc suppression switch |
| CN204654041U (en) * | 2015-06-02 | 2015-09-23 | 梅花（晋江）伞业有限公司 | A kind of automatic umbrella |
| CN206022242U (en) * | 2016-08-26 | 2017-03-15 | 国家电网公司 | A kind of relay contacts mechanism of arc protection |
| CN207663982U (en) * | 2017-12-15 | 2018-07-27 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107887222B (en) | 2020-09-08 |
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