CN105244208B - A kind of multi-break high voltage DC breaker - Google Patents
A kind of multi-break high voltage DC breaker Download PDFInfo
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- CN105244208B CN105244208B CN201510548153.4A CN201510548153A CN105244208B CN 105244208 B CN105244208 B CN 105244208B CN 201510548153 A CN201510548153 A CN 201510548153A CN 105244208 B CN105244208 B CN 105244208B
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 22
- 230000005611 electricity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 208000032767 Device breakage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of multi-break high voltage DC breaker, including：Arc-chutes array, rearranged by several identical arc-chutes；Linkage board, it is set in parallel in the both ends of the arc-chutes array, and the moving conductive rod of the linkage board arc-chutes is fixedly connected；Drive mechanism, it is connected with the linkage board.The multi-break high voltage DC breaker of the present invention solves the technical problem that high voltage direct current is not easy to cut-off, and break performance is high, improves effective drop-out voltage grade of dc circuit breaker.
Description
Technical field
The invention belongs to primary cut-out technical field, particularly a kind of multi-break high voltage DC breaker.
Background technology
With the sustained and rapid development of China's economy, entire society is also increasing to the demand of electric power, the appearance of power network
Amount constantly expands, and forces voltage class to improve constantly, and most domestic high-pressure delivery line is directly using 126kV voltages etc. at present
Level, primary cut-out are largely used.With being continuously increased for power demand, it is contemplated that the physical geography condition in China and
The characteristic distributions of the energy and load center cause overlength distance, the power transmission of vast capacity turns into inevitable.In order to reduce transmission of electricity
The loss of circuit and the land resource of saving preciousness are, it is necessary to a kind of economic, efficient power transmission mode.And extra-high voltage direct-current transmission is
A kind of economic, efficient, power transmission mode of overlength distance, vast capacity, has the features such as transmission capacity is big, and transmission distance is long, tool
There is very good economy.High voltage DC breaker is that the necessary of DC transmission system becomes power equipment, for cut-offfing direct current
Big direct current in transmission system, and because direct current does not have this feature of natural zero-crossing, it is necessary to take special means ability
Big direct current is cut-off, the safe operation of transmission line of electricity is ensured, in the prior art usually by the way of zero passage is forced so that be disconnected
Current over-zero between the device fracture of road, so that arc extinction, breaker completes interrupting process.
And be in place of the deficiencies in the prior art, in dc circuit breaker interrupting process, arc current is very big, and uses strong
The arcing time compeled between the mode fracture of zero passage is long, easy scaling loss contact, and it is unreliable to force this mode of zero passage to cut-off, and holds
Easily cause serious electric power accident.
The content of the invention
For above-mentioned technical problem, the invention discloses a kind of multi-break high voltage DC breaker, using multi-break simultaneously
The mode cut-off, to the total voltage progress partial pressure at breaker both ends, the voltage between each port is relatively fewer, cut-offs simultaneously
When, arc current is smaller, it is easier to cut-offs, solves the technical problem that high voltage direct current is not easy to cut-off.
In order to realize according to the purpose of the present invention, there is provided a kind of multi-break high voltage DC breaker, including：
Arc-chutes array, being rearranged by several identical arc-chutes, each arc-chutes are single action arc-chutes, its
A moving contact and a static contact are inside relatively set with, the moving contact is drawn by moving conductive rod from described arc-chutes one end
Going out, the static contact is drawn by static conductive rod from the arc-chutes other end, and each arc-chutes top and bottom flush setting,
The moving conductive rod direction of each arc-chutes, static conductive rod are set down, are spaced and are connected between each moving conductive rod
Conductive link, each interval is connected with conductive link between the static conductive rod, forms going out for several arc-chutes cascaded structures
Arc chamber array, one end sky of two arc-chutes of its head and the tail connect；Linkage board, it is set in parallel in the upper end of the arc-chutes array,
The conductive link of the linkage board respectively between each moving conductive rod is fixedly connected；Drive mechanism, it passes through drive
Lever is connected with the linkage board.
Preferably, the arc-chutes array is arranged in same Shell of circuit breaker, and each arc-chutes break with described
Road device inner walls are fixed.
Preferably, vacuumized inside the Shell of circuit breaker or insulation gas filled.
Preferably, two arc-chutes skies of the head and the tail of the arc-chutes array connect the conducting rod at end from the Shell of circuit breaker
Draw, as the disengaging binding post of breaker, the linkage board is drawn by the drive rod from the Shell of circuit breaker, its
Exit is connected with the drive mechanism.
Preferably, the linkage board is made up of insulating materials, and its bottom surface is provided with several grooves, each arc-chutes
Moving conductive rod between conductive link be fixedly installed in the groove.
A kind of multi-break high voltage DC breaker, including：
Arc-chutes array, being rearranged by several identical arc-chutes, each arc-chutes are double acting arc-chutes, its
Inside it is relatively set with the first moving contact and the second moving contact, first moving contact is by the first moving conductive rod from the arc-chutes
One end is drawn, and second moving contact is drawn by the second moving conductive rod from the arc-chutes other end, each arc-chutes
Top and bottom flush setting, the first moving conductive rod of each arc-chutes upward, the second moving conductive rod set down, it is each described
Interval is connected with conductive link between first moving conductive rod, and interval is connected with conductive connect between each second moving conductive rod
Bar, the arc-chutes array of several arc-chutes cascaded structures is formed, one end sky of two arc-chutes of its head and the tail connects；Two pieces of linkages
Plate, it is set in parallel in the upper and lower ends of the arc-chutes array respectively, and every piece of linkage board is dynamic with described first or second
The conductive link between conducting rod is fixedly connected；Two drive mechanisms, it is symmetricly set on the two of the linkage board up and down
End, and be connected by drive rod with a linkage board, two drive mechanism coordinated signals.
Preferably, the arc-chutes array is arranged in same Shell of circuit breaker, and each arc-chutes break with described
Road device inner walls are fixed.
Preferably, vacuumized inside the Shell of circuit breaker or insulation gas filled.
Preferably, two arc-chutes skies of the head and the tail of the arc-chutes array connect the conducting rod at end from the Shell of circuit breaker
Draw, as the disengaging binding post of breaker, the linkage board is drawn by the drive rod from the Shell of circuit breaker, its
Exit is connected with the drive mechanism.
Preferably, the linkage board is made up of insulating materials, and it is provided with several grooves with arc-chutes array opposite face,
The conductive link of the arc-chutes array side is fixedly installed in the groove on a linkage board.
The present invention comprises at least following beneficial effect：
1st, multi-break cut-offs simultaneously, and arc current is smaller, and the arc time is shorter, effectively protects contact of breaker；
2nd, switch off time is fast, effectively increase the break performance of breaker, powerful guarantee transmission system it is safe for operation；
3rd, electric arc is not easy resume combustion between the fracture between two contacts, avoids potential safety hazard caused by breaker reclosing；
4th, the drop-out voltage of breaker is higher, available in higher DC transmission system, improves power transmission efficiency；
5th, the breaker has the characteristics that compact-sized, small volume, efficiency high, is easy to commercialization.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the arc-chutes array；
Fig. 2 is the overlooking the structure diagram of the arc-chutes array；
Fig. 3 is the present invention looks up structural representation of the arc-chutes array；
Fig. 4 is the structure for mounting circuit breaker schematic diagram of the first embodiment；
Fig. 5 is the breaker overall structure diagram of the first embodiment；
Fig. 6 is the structure for mounting circuit breaker schematic diagram of second of embodiment；
Fig. 7 is the breaker overall structure diagram of second of embodiment.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of individual other elements or its combination.
As Figure 1-5 be according to the present invention multi-break high voltage DC breaker the first way of realization, wherein
Including：
Arc-chutes array, as shown in figure 1, it is rearranged by several identical arc-chutes, in order to chat in the present embodiment
State conveniently, using 5 arc-chutes arrangement architectures, including arc-chutes 110,120,130,140,150, each arc-chutes are single
Dynamic arc-chutes, that is to say an only moving contact and a static contact, and the moving contact is by moving conductive rod from the arc-chutes
One end is drawn, and the static contact is drawn by static conductive rod from the arc-chutes other end, one end of its two arc-chutes of head and the tail
Sky connects, and shape, the parameter of each arc-chutes are identical, and each arc-chutes top and bottom flush setting, each arc-chutes
The direction of moving conductive rod 111,121,131,141,151, static conductive rod 113,122,132,142,152 are set down, each described
Interval is connected with conductive link between moving conductive rod, and interval is connected with conductive link between each static conductive rod, that is,
Static conductive rod 113 and 122 is connected by conductive link 112, and moving conductive rod 121 and 131 is connected by conductive link 123, quiet to lead
Electric pole 132 and 142 is connected by conductive link 134, and moving conductive rod 141 and 151 is connected by conductive link 145, is formed 5 and is gone out
The arc-chutes array of arc chamber cascaded structure, moving conductive rod 111 and static conductive rod 152 are the disengaging terminal of breaker；Linkage board
200, as shown in figure 4, it is one piece of planar structure, and it is set in parallel in the upper end of the arc-chutes array, the linkage board
Conductive link of 200 lower surfaces respectively between the moving conductive rod of each arc-chutes is fixedly connected, and moving conductive rod is about 111
Through linkage board 200, and surface is drawn upwards from it；Drive mechanism 300, it is arranged on the upper end of linkage board 200, and with institute
Linkage board 200 is stated to connect by drive rod.Drive mechanism 300 drives linkage board to move up and down, and drives each moving contact synchronously to close
Separating brake moves, and realizes the synchronous switching off of dc circuit breaker multi-break, and voltage realizes partial pressure on each fracture, each fracture it
Between voltage it is smaller, the arc-chutes of arc-chutes array are more in principle, and each fracture voltage is smaller, and arc current is smaller, it is easier to
Blow-out, that is, the grade that breaker cut-offs DC voltage is improved, reduce the loss in transmission line of electricity, improve transmission of electricity effect
Rate, while the arc time is shorter, effectively protects contact of breaker, while the on/off switch time of breaker is shortened, improve
The break performance of breaker, furtherly, the security of whole transmission line of electricity is improved, the break performance of breaker more may be used
Lean on, after each dynamic/static contact of breaker separates, the resume combustion of electric arc is less prone between each contact of breaker, effectively improves breaker
Reliability, ensure that the safety coefficient of whole piece transmission line of electricity.
In above-mentioned technical proposal, the arc-chutes array is arranged in same Shell of circuit breaker 400, as shown in figure 5, simultaneously
And each arc-chutes are fixed with the inwall of Shell of circuit breaker 400, so that arc-chutes array entirety and breaker shell
Body 400 is fixed.
In above-mentioned technical proposal, vacuumized inside the Shell of circuit breaker 400 or insulation gas filled, improve the exhausted of inside
Edge performance, the electric discharge phenomena between each conducting rod are prevented, while further improve the arc extinction performance of breaker, improved effective
Drop-out voltage grade.
In above-mentioned technical proposal, the sky of two arc-chutes of head and the tail of the arc-chutes array connects conducting rod from the breaker
Drawn in housing 400, as the disengaging binding post of breaker, that is, moving conductive rod 111 and static conductive rod 152 are respectively from open circuit
The inside of device housing 400 is drawn, and enters terminal 410 with breaker respectively and outlet column 420 is connected, the linkage board 200 is also disposed at
In the Shell of circuit breaker 400, linkage board 200 is drawn upwards by drive rod 210 from the Shell of circuit breaker 400, and it draws
Go out end be connected with the drive mechanism 300, drive mechanism 300 drive linkage board 200 move up and down, each moving contact of synchronous drive and
Each static contact realizes that on/off switch moves, and the voltage between each contact is uniformly distributed, and arc current is smaller, is easy to blow-out, and during arcing
Between it is shorter, realize the on/off switch process of breaker, while improve the on/off switch speed of breaker, improve opening for breaker
Disconnected performance, and improve the drop-out voltage grade of breaker so that the direct current that breaker may be used on higher voltage grade is defeated
In electric system, the loss in transmission line is reduced, improves power transmission efficiency.
In above-mentioned technical proposal, the linkage board 200 is made up of the highly thermally conductive material that insulate, and its bottom surface is provided with several
Conductive link shape and position consistency between the moving conductive rod of groove, its shape and position and each arc-chutes, each
Conductive link between the moving conductive rod of the arc-chutes is fixedly installed in the groove.
Second of embodiment, a kind of multi-break high voltage DC breaker, as shown in fig. 6-7, itself and the first embodiment
Difference is：Each arc-chutes are double acting arc-chutes, are divided into first, second moving contact, the first moving contact and first
Moving conductive rod is connected, and the second moving contact is connected with the second moving conductive rod, and the both ends of arc-chutes array are respectively arranged with drive mechanism,
First, second moving contact is synchronous opposite or conversely is synchronized with the movement, and realizes that the on/off switch of arc-chutes moves, on/off switch speed faster,
Arc time between contact is shorter, and its properties is more preferable than embodiment 1, but the synchronism operated requires higher.Specific knot
Structure is provided with two pieces of linkage boards 200 and 400 to be flushed accordingly in arc-chutes array top and bottom, and the first of each arc-chutes
The direction of moving conductive rod 111,121,131,141,151, the second moving conductive rod 113,122,132,142,152 are set down, each
First, second moving conductive rod of the arc-chutes is conductively connected by conducting rod interval respectively, that is, the second moving conductive rod 113
Connected with 122 by conductive link 112, the first moving conductive rod 121 and 131 is connected by conductive link 123, the second moving conductive rod
132 and 142 are connected by conductive link 134, and the first moving conductive rod 141 and 151 is connected by conductive link 145, are formed 5 and are gone out
The arc-chutes array of arc chamber cascaded structure, moving conductive rod 111 and static conductive rod 152 are the disengaging terminal of breaker；The linkage
Conductive link of the lower surface of plate 200 respectively between the first moving conductive rod of each arc-chutes is fixedly connected, and first dynamic leads
Electric pole passes through linkage board 200 about 111, and surface is drawn upwards from it；The upper surface of linkage board 400 respectively with each institute
The conductive link stated between the second moving conductive rod of arc-chutes is fixedly connected, and the second moving conductive rod passes through linkage board about 152
200, and drawn downwards from its lower surface；300 and 500 setting symmetrical above and below of drive mechanism, and coordinated signals, drive mechanism 400
Linked by drive rod 410 and drive mechanism 500, drive mechanism 300 and 500 drives linkage board 200 and 400 to move up and down, band
Dynamic each first, second moving contact synchronization on/off switch motion, realizes simultaneously and rapidly cut-offfing for dc circuit breaker multi-break, compared to
Embodiment 1, faster, the turn-off performance of breaker is more preferably for the breaker on/off switch speed of embodiment 2.
From the above mentioned, multi-break dc circuit breaker provided by the invention, multi-break cut-off simultaneously, and arc current is smaller, combustion
The arc time is shorter, effectively protects contact of breaker；Switch off time is fast, effectively increases the break performance of breaker, tries hard to keep
The safe for operation of transmission system is hindered；Electric arc is not easy resume combustion between fracture, avoids potential safety hazard caused by breaker reclosing；It is disconnected
The drop-out voltage of road device is higher, available in higher DC transmission system, improves power transmission efficiency；The breaker has structure tight
Gather, small volume, efficiency high, be easy to the features such as commercialization, there is extensive practical value.
Although embodiment of the present invention is disclosed as above, listed fortune in specification and embodiment is not restricted to
With it can be applied to various suitable the field of the invention completely, can be easily real for those skilled in the art
Now other modification, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited to
Specific details and shown here as the legend with description.
Claims (6)
- A kind of 1. multi-break high voltage DC breaker, it is characterised in that including：Arc-chutes array, rearranged by several identical arc-chutes, each arc-chutes are single action arc-chutes, its interior phase To being provided with a moving contact and a static contact, the moving contact is drawn by moving conductive rod from described arc-chutes one end, institute State static contact to draw from the arc-chutes other end by static conductive rod, each arc-chutes top and bottom flush setting, each The moving conductive rod of the arc-chutes upward, static conductive rod set down, interval is connected with conduction between each moving conductive rod Connecting rod, each interval is connected with conductive link between the static conductive rod, forms the arc-chutes of several arc-chutes cascaded structures Array, one end sky of two arc-chutes of its head and the tail connect；Linkage board, it is set in parallel in the upper end of the arc-chutes array, the linkage board respectively with each moving conductive rod Between the conductive link be fixedly connected；Drive mechanism, it is connected by drive rod with the linkage board；Wherein, two arc-chutes skies of the head and the tail of the arc-chutes array connect the conducting rod at end and drawn from the Shell of circuit breaker, As the disengaging binding post of breaker, the drive rod is drawn from the Shell of circuit breaker, and the linkage board passes through the drive The exit of lever is connected with the drive mechanism；The linkage board is made up of insulating materials, and it is recessed that its bottom surface is provided with several Groove, the conductive link between the moving conductive rod of each arc-chutes are fixedly installed in the groove.
- 2. multi-break high voltage DC breaker as claimed in claim 1, it is characterised in that the arc-chutes array is arranged on together In one Shell of circuit breaker, each arc-chutes are fixed with the Shell of circuit breaker inwall.
- 3. multi-break high voltage DC breaker as claimed in claim 2, it is characterised in that taken out inside the Shell of circuit breaker true It is empty or insulation gas filled.
- A kind of 4. multi-break high voltage DC breaker, it is characterised in that including：Arc-chutes array, rearranged by several identical arc-chutes, each arc-chutes are double acting arc-chutes, its interior phase To being provided with the first moving contact and the second moving contact, first moving contact is by the first moving conductive rod from described arc-chutes one end Draw, second moving contact is drawn by the second moving conductive rod from the arc-chutes other end, above and below each arc-chutes Face flushes setting, the first moving conductive rod of each arc-chutes upward, the second moving conductive rod set down, each described first Interval is connected with conductive link between moving conductive rod, and interval is connected with conductive link, shape between each second moving conductive rod Into the arc-chutes array of several arc-chutes cascaded structures, one end sky of two arc-chutes of its head and the tail connects；Two pieces of linkage boards, it is set in parallel in the upper and lower ends of the arc-chutes array respectively, every piece of linkage board with it is described The conductive link between first or second moving conductive rod is fixedly connected；Two drive mechanisms, it is symmetricly set on the both ends of the linkage board up and down, and passes through drive rod and a linkage Plate connects, two drive mechanism coordinated signals；Wherein, two arc-chutes skies of the head and the tail of the arc-chutes array connect the conducting rod at end and drawn from the Shell of circuit breaker, As the disengaging binding post of breaker, the drive rod is drawn from the Shell of circuit breaker, and every piece of linkage board passes through institute The exit for stating drive rod connects with the corresponding drive mechanism；Every piece of linkage board is formed by insulating materials, its with Arc-chutes array opposite face is provided with several grooves, and the conductive link of the arc-chutes array side is fixedly installed on an institute State in the groove on linkage board.
- 5. multi-break high voltage DC breaker as claimed in claim 4, it is characterised in that the arc-chutes array is arranged on together In one Shell of circuit breaker, each arc-chutes are fixed with the Shell of circuit breaker inwall.
- 6. multi-break high voltage DC breaker as claimed in claim 5, it is characterised in that taken out inside the Shell of circuit breaker true It is empty or insulation gas filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548153.4A CN105244208B (en) | 2015-08-31 | 2015-08-31 | A kind of multi-break high voltage DC breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548153.4A CN105244208B (en) | 2015-08-31 | 2015-08-31 | A kind of multi-break high voltage DC breaker |
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| Publication Number | Publication Date |
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| CN105244208A CN105244208A (en) | 2016-01-13 |
| CN105244208B true CN105244208B (en) | 2018-01-12 |
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| CN201510548153.4A Active CN105244208B (en) | 2015-08-31 | 2015-08-31 | A kind of multi-break high voltage DC breaker |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731616A (en) * | 2017-11-16 | 2018-02-23 | 中国科学院电工研究所 | Parallel series multi-break arc-chutes |
| CN114141575B (en) * | 2021-11-03 | 2022-11-08 | 西安交通大学 | Parallel current equalizing structure of current transfer type circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10224922A (en) * | 1997-02-04 | 1998-08-21 | Meidensha Corp | Breaker |
| CN101916687A (en) * | 2010-08-05 | 2010-12-15 | 西安通大思源电器有限公司 | Driving mode control-based single-phase vacuum circuit breaker of double arc-extinguishing chamber |
| CN202275787U (en) * | 2011-09-30 | 2012-06-13 | 中国电力科学研究院 | Three-fracture series type high voltage DC breaker |
| CN103117188B (en) * | 2013-01-17 | 2015-05-13 | 国网智能电网研究院 | High-speed switch for direct current breaker |
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2015
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Inventor after: Zhang Yi Inventor after: Ding Guijun Inventor after: Liu Jianmin Inventor after: Guan Weimin Inventor before: Zhang Yi |
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Effective date of registration: 20171215 Address after: 224000 Yancheng City Jiefang South Road, Jiangsu, No. 189 Applicant after: YANCHENG POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: STATE GRID JIANGSU ELECTRIC POWER COMPANY BINHAI POWER SUPPLY COMPANY Applicant after: The electric Industrial Co., Ltd. of strand intense source Applicant after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: Jiangsu Electric Power Company Applicant before: Binhai County Power Supply Company, Jiangsu Electric Power Co. Applicant before: The electric Industrial Co., Ltd. of strand intense source |
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