CN109119285A - A kind of permanent magnet direct-driven intelligent vacuum open-circuit system - Google Patents
A kind of permanent magnet direct-driven intelligent vacuum open-circuit system Download PDFInfo
- Publication number
- CN109119285A CN109119285A CN201811098954.5A CN201811098954A CN109119285A CN 109119285 A CN109119285 A CN 109119285A CN 201811098954 A CN201811098954 A CN 201811098954A CN 109119285 A CN109119285 A CN 109119285A
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- China
- Prior art keywords
- permanent magnet
- vacuum
- magnet mechanism
- circuit system
- vacuum interrupter
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000008033 biological extinction Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/668—Means for obtaining or monitoring the vacuum
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention belongs to vacuum circuit breaking devices, disclose a kind of permanent magnet direct-driven intelligent vacuum open-circuit system, comprising: vacuum interrupter, insulating bar, permanent magnet mechanism, shielding case；Vacuum interrupter is connect by insulating bar with permanent magnet mechanism vertical straight line, vacuum interrupter is horizontally arranged, each vacuum interrupter connects a permanent magnet mechanism, the quantity that three vacuum interrupters are used by switch control, and three groups of structures are separately covered to get up to shield electromagnetic interference by shielding case.The present invention takes vacuum interrupter to pass through the coaxial straight configuration of insulating bar with permanent magnet mechanism, realize direct-drive type, it is small in size, it is compact-sized, the solidification of various sensors is in module, it is easy to accomplish it is intelligent, the structure can single-stage use, it bipolar can also be applied in combination, while can be used on cable type aerial condutor without frameization with direct screening with three-level；It can realize that split-phase operates when being applied in combination；Mounting means single-stage, bipolar or three-level combine sitting posture；Direct screening simultaneously is realized and is used without frameization on aerial condutor.
Description
Technical field
The invention belongs to vacuum circuit breaking device more particularly to a kind of permanent magnet direct-driven intelligent vacuum open-circuit systems.
Background technique
Currently, the prior art commonly used in the trade is such that vacuum circuit breaker is cut-off since its vacuum interrupter is excellent
Characteristic greatly increases its electric life, and the arc-chutes moving contact of vacuum circuit breaker forms small, it is desirable that opening velocity is high.Sound touching
It is plane contact when head closes a floodgate, vacuum circuit breaker contact in short circuit is dismantled by powerful impact force in order to prevent, dynamic/static contact
Between to impose biggish contact pressure, be also beneficial in this way improve opening velocity.The superiority of vacuum interrupter, keep it mechanical and
It is up to ten thousand times that electric life is jumped from traditional 2000 times, continues to use conventional circuit breaker operating mechanism electromagnetic mechanism and spring mechanism is difficult
The advantages of embodying high life, high reliability, therefore the advantages that permanent magnet mechanism is reliable for operation with its, durable, is widely used
In the driving of vacuum circuit breaker.
Current permanent magnet mechanism actuating vacuum circuit breaker is all that the permanent magnet mechanism by being placed in its mechanism case is turned by conversion
Arm, tranverse connecting rod and connecting rod of becoming attached to, connect vacuum interrupter moving conductive rod realize close point operation, permanent magnet mechanism with arc-chutes at
90 ° of angle layouts, volume is big, and structure is complicated, and sealing is difficult, is hardly formed module structure integrated.
In conclusion problem of the existing technology is: permanent magnet mechanism is laid out at an angle of 90 with arc-chutes, and volume is big, structure
Complexity, sealing is difficult, is hardly formed module structure integrated.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of permanent magnet direct-driven intelligent vacuum open-circuit systems, originally
Invention is achieved in that a kind of permanent magnet direct-driven intelligent vacuum open-circuit system includes: vacuum interrupter, insulating bar, permanent magnetic motor
Structure, shielding case.
The vacuum interrupter is connect by insulating bar with permanent magnet mechanism vertical straight line；
There are three the vacuum interrupters, horizontally arranged, and each vacuum interrupter connects a permanent magnet mechanism；
The quantity that three vacuum interrupters are used by switch control；
Three groups of structures are separately covered to get up to shield electromagnetic interference by the shielding case；
The described system ontology both seperated can manipulate installation, can also combine manipulation installation；Both it can be installed with sitting posture, it can also
To be hung on aerial condutor, realize without stented installation.
Further, in the vacuum extinction room vacuum degree measurement method are as follows: the timing of the rate of decay one of emission current is led to
The die-away time Δ t of detection emission current is crossed, specifically:
ΔtPa=k2/d
In formula: P is vacuum pressure, Pa；Δ t=t1-t0For emission current die-away time, s；a,k2For constant, 0 < a < 1；D is interpolar distance, mm.
Further, the permanent magnet mechanism is provided with permanent magnet, closing coil and opening coil, the control to permanent magnet mechanism
System uses two-loop system method, and the action process of permanent magnet mechanism is mainly determined by the transient process of electromagnetism and mechanical couplings
Fixed, dynamic characteristic are as follows:
In formula:: UCFor capacitor both end voltage；For the effective control voltage for being input to permanent magnet mechanism coil；I, Ψ distinguishes
For coil current and electromagnetic system total flux linkage；δ is gapped magnetic field；T is the time；σ is the duty ratio of IGBT Continuity signal；WμFor electricity
The magnetic energy of magnetic system is the function of i, Ψ；X is dynamic iron core displacement；C is the capacity of storage capacitor；M is the reduction of system motion component
Quality at dynamic iron core；FmagTo move the electromagnetic attraction that iron core is subject to；FfFor system motion counter-force, including load on spring counter-force,
Frictional force and air drag.
Further, the shielding case is made of supporting leg and cover, and supporting leg is to be flexibly connected with cover；Cover is in spherical crown shape.
In conclusion advantages of the present invention and good effect are as follows: the present invention takes vacuum interrupter to pass through with permanent magnet mechanism
The coaxial straight configuration of insulating bar realizes direct-drive type, small in size, compact-sized, in various sensor solidifications and module, it is easy to accomplish
Intelligence, the structure can single-stage use, can also bipolar and three-level be applied in combination, can realize that split-phase operates when being applied in combination；Both may be used
It is installed, can also be hung on aerial condutor with sitting posture, realized without stented installation.
Detailed description of the invention
Fig. 1 is permanent magnet mechanism intelligent vacuum open-circuit system schematic diagram provided in an embodiment of the present invention.
In figure: 1, vacuum interrupter；2, insulating bar；3, permanent magnet mechanism；4, shielding case.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of permanent magnet direct-driven intelligent vacuum open circuit systems
System, as described in Figure 1, a kind of permanent magnet direct-driven intelligent vacuum open-circuit system includes: vacuum interrupter 1, insulating bar 2, permanent magnet mechanism
3, shielding case 4.
The vacuum interrupter 1 is connect by insulating bar 2 with 3 vertical straight line of permanent magnet mechanism；
There are three the vacuum interrupters 1, horizontally arranged, and each vacuum interrupter 1 connects a permanent magnet mechanism 3；
The quantity that three vacuum interrupters 1 are used by switch control；
Three groups of structures are separately covered to get up to shield electromagnetic interference by the shielding case.
The measurement method of vacuum degree in vacuum extinction room provided in an embodiment of the present invention are as follows: the rate of decay one of emission current
Periodically, by detecting the die-away time Δ t of emission current, specifically:
ΔtPa=k2/d
In formula: P is vacuum pressure, Pa；Δ t=t1-t0For emission current die-away time, s；a,k2For constant, 0 < a < 1；D is interpolar distance, mm.
Permanent magnet mechanism provided in an embodiment of the present invention is provided with permanent magnet, closing coil and opening coil, to permanent magnetic motor
The control of structure uses two-loop system method, and the action process of permanent magnet mechanism is mainly the transition by electromagnetism and mechanical couplings
What process determined, dynamic characteristic are as follows:
In formula:: UCFor capacitor both end voltage；For the effective control voltage for being input to permanent magnet mechanism coil；I, Ψ distinguishes
For coil current and electromagnetic system total flux linkage；δ is gapped magnetic field；T is the time；σ is the duty ratio of IGBT Continuity signal；WμFor electricity
The magnetic energy of magnetic system is the function of i, Ψ；X is dynamic iron core displacement；C is the capacity of storage capacitor；M is the reduction of system motion component
Quality at dynamic iron core；FmagTo move the electromagnetic attraction that iron core is subject to；FfFor system motion counter-force, including load on spring counter-force,
Frictional force and air drag.
Shielding case provided in an embodiment of the present invention is made of supporting leg and cover, and supporting leg is to be flexibly connected with cover；Cover is in
Spherical crown shape.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of permanent magnet direct-driven intelligent vacuum open-circuit system, which is characterized in that the permanent magnet direct-driven intelligent vacuum open circuit system
System includes: vacuum interrupter, insulating bar, permanent magnet mechanism, shielding case；
The vacuum interrupter is connect by insulating bar with permanent magnet mechanism vertical straight line；
There are three the vacuum interrupters, horizontally arranged, and each vacuum interrupter connects a permanent magnet mechanism；
The quantity that three vacuum interrupters are used by switch control；
Three groups of structures are separately covered to get up to shield electromagnetic interference by the shielding case；
The described system ontology both seperated can manipulate installation, can also combine manipulation installation；Both it can be installed, can also be hung with sitting posture
It is hung on aerial condutor, realizes without stented installation.
2. permanent magnet direct-driven intelligent vacuum open-circuit system as described in claim 1, which is characterized in that in the vacuum extinction room
The measurement method of vacuum degree are as follows: one timing of the rate of decay of emission current, the die-away time Δ t by detecting emission current are
Can, specifically:
ΔtPa=k2/d
In formula: P is vacuum pressure, Pa；Δ t=t1-t0For emission current die-away time, s；a,k2For constant, 0 < a < 1；D is interpolar distance, mm.
3. permanent magnet direct-driven intelligent vacuum open-circuit system as described in claim 1, which is characterized in that the permanent magnet mechanism setting
Have: permanent magnet, closing coil and opening coil use two-loop system method, permanent magnet mechanism to the control of permanent magnet mechanism
Action process be mainly to be determined by the transient process of electromagnetism and mechanical couplings, dynamic characteristic are as follows:
In formula: UCFor capacitor both end voltage；For the effective control voltage for being input to permanent magnet mechanism coil；I, Ψ is respectively coil
Electric current and electromagnetic system total flux linkage；δ is gapped magnetic field；T is the time；σ is the duty ratio of IGBT Continuity signal；WμFor electromagnetic system
Magnetic energy, be the function of i, Ψ；X is dynamic iron core displacement；C is the capacity of storage capacitor；M is system motion component reduction to dynamic iron
Quality at the heart；FmagTo move the electromagnetic attraction that iron core is subject to；FfFor system motion counter-force, including load on spring counter-force, frictional force
And air drag.
4. permanent magnet direct-driven intelligent vacuum open-circuit system as described in claim 1, which is characterized in that the shielding case is by supporting leg
And cover composition, supporting leg are to be flexibly connected with cover；Cover is in spherical crown shape.
5. permanent magnet direct-driven intelligent vacuum open-circuit system as described in claim 1, which is characterized in that its described ontology can be single
It is pole, bipolar, three extremely independently installed；It can also be placed on same pedestal and form a whole electric appliance；Both it can be installed with sitting posture, it can also be with
It is hung on aerial condutor, realizes without stented installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098954.5A CN109119285A (en) | 2018-09-20 | 2018-09-20 | A kind of permanent magnet direct-driven intelligent vacuum open-circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098954.5A CN109119285A (en) | 2018-09-20 | 2018-09-20 | A kind of permanent magnet direct-driven intelligent vacuum open-circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109119285A true CN109119285A (en) | 2019-01-01 |
Family
ID=64859875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811098954.5A Pending CN109119285A (en) | 2018-09-20 | 2018-09-20 | A kind of permanent magnet direct-driven intelligent vacuum open-circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109119285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111370254A (en) * | 2020-03-25 | 2020-07-03 | 贵州振华华联电子有限公司 | Large-current toggle switch with electromagnetic shielding characteristic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201741623U (en) * | 2010-06-25 | 2011-02-09 | 武汉百叡电力技术有限公司 | Outdoor high-voltage intelligent permanent magnetic vacuum switch |
| CN202205650U (en) * | 2011-08-25 | 2012-04-25 | 遵义长征电器开关设备有限责任公司 | 12kV vacuum arc-extinguishing chamber with vacuum degree and temperature online detection function |
| JP2016225253A (en) * | 2015-06-04 | 2016-12-28 | 三菱電機株式会社 | Vacuum valve and manufacturing method therefor, and vacuum isolator using the same |
-
2018
- 2018-09-20 CN CN201811098954.5A patent/CN109119285A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201741623U (en) * | 2010-06-25 | 2011-02-09 | 武汉百叡电力技术有限公司 | Outdoor high-voltage intelligent permanent magnetic vacuum switch |
| CN202205650U (en) * | 2011-08-25 | 2012-04-25 | 遵义长征电器开关设备有限责任公司 | 12kV vacuum arc-extinguishing chamber with vacuum degree and temperature online detection function |
| JP2016225253A (en) * | 2015-06-04 | 2016-12-28 | 三菱電機株式会社 | Vacuum valve and manufacturing method therefor, and vacuum isolator using the same |
Non-Patent Citations (2)
| Title |
|---|
| 汤庚: "真空断路器永磁操动机构调速控制系统的研究", 《中国优秀硕士学位论文全文数据库》 * |
| 赵子玉等: "一种测量真空开关灭弧室真空度的新方法", 《中国电机工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111370254A (en) * | 2020-03-25 | 2020-07-03 | 贵州振华华联电子有限公司 | Large-current toggle switch with electromagnetic shielding characteristic |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
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| RJ01 | Rejection of invention patent application after publication |