CN108321000A - A kind of vacuum interrupter for from even pressure type vacuum circuit breaker with multi breaks - Google Patents
A kind of vacuum interrupter for from even pressure type vacuum circuit breaker with multi breaks Download PDFInfo
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- CN108321000A CN108321000A CN201810337488.5A CN201810337488A CN108321000A CN 108321000 A CN108321000 A CN 108321000A CN 201810337488 A CN201810337488 A CN 201810337488A CN 108321000 A CN108321000 A CN 108321000A
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- end cover
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- 239000000919 ceramic Substances 0.000 claims abstract description 68
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- WOIHABYNKOEWFG-UHFFFAOYSA-N [Sr].[Ba] Chemical compound [Sr].[Ba] WOIHABYNKOEWFG-UHFFFAOYSA-N 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 229910002370 SrTiO3 Inorganic materials 0.000 claims description 3
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- UPWOEMHINGJHOB-UHFFFAOYSA-N cobalt(III) oxide Inorganic materials O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 description 11
- 206010017076 Fracture Diseases 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- C—CHEMISTRY; METALLURGY
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
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- 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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
- C04B2235/3234—Titanates, not containing zirconia
- C04B2235/3236—Alkaline earth titanates
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
Abstract
The invention belongs to high-pressure vacuum switch fields, it is related to a kind of vacuum interrupter for from even pressure type vacuum circuit breaker with multi breaks, vacuum interrupter includes upper end cover, static contact, BST ceramic cases, shielding case, moving contact, bellows shield cover, bellows and bottom end cover.The BST ceramic cases are columnar hollow structure, and upper end cover and bottom end cover constitute vacuum sealing space respectively with BST ceramic case upper and lower ends airtight connections；The shielding case is placed in BST ceramic cases, the lower face connection of static contact and upper end cover；The lower end axis of moving contact penetrates bottom end cover, and the bellows being connect with bottom end cover is cased on the axis of lower end.The present invention is based on this vacuum circuit breaker with multi breaks constituted from even pressure type vacuum interrupter, can be under conditions of no equalizing capacitance, and voltage is uniformly distributed between realizing each fracture, improves the connecting-disconnecting function of vacuum circuit breaker with multi breaks.It is this simple in structure from even pressure type vacuum circuit breaker with multi breaks vacuum interrupter, it is easy to implement.
Description
Technical field
The invention belongs to high-pressure vacuum switch fields, are related to a kind of vacuum for from even pressure type vacuum circuit breaker with multi breaks
Arc-chutes.
Technical background
It is to avoid the saturation effect of vacuum gap using the concatenated mode of multiple fractures, by vacuum circuit breaker to high voltage etc.
The effective measures that grade is promoted.Voltage's distribiuting between each fracture has weight to the integral insulation intensity and connecting-disconnecting function of breaker
It influences, and the voltage born between each fracture has much relations with its equivalent self-capacitance value.Due to the presence of stray capacitance,
The vacuum circuit breaker with double breaks for using two identical commercial vacuum arc-chutes to constitute, the electricity that high-pressure side fracture is born
Pressure is also high compared with low-pressure side fracture.Generally in vacuum circuit breaker with double breaks, high-pressure side fracture bears nearly 70% total voltage.
During cut-offfing short circuit current, bearing the fracture of high voltage may puncture.In this case, if low-pressure side is disconnected
Mouth can not bear whole recovery voltage, then low-pressure side fracture can also puncture in succession, be opened so as to cause entire breaker
Disconnected failure.
Solving the measure of voltage's distribiuting unevenness in vacuum circuit breaker with multi breaks field at present is pressed in the parallel connection of fracture both ends
Capacitance.However, on the one hand parallel equalizing capacitor improves the cost of vacuum circuit breaker with multi breaks, system is on the other hand reduced
Safety and reliability.In During Process of Long-term Operation, insulation degradation causes the accident generation equalizing capacitance, such as Chongqing electricity in 2005
Explosion accident occurs for two equalizing capacitances of power company longevity station 5053# switches.After equalizing capacitance increases to certain value, occur
When puncturing after arc, equalizing capacitance increases breakdown current, and connecting-disconnecting function continuously decreases.In addition, equalizing capacitance and system perception member
The resonance overvoltage and Restriking overvoltage that part is likely to form can cause equalizing capacitance potential hidden danger.
Invention content
The present invention provides a kind of vacuum interrupters for from even pressure type vacuum circuit breaker with multi breaks, solve without
Under conditions of voltage capacitance, the problem of voltage between each fracture is uniformly distributed is cannot achieve, and improve multi-break vacuum circuit breaker
The connecting-disconnecting function of device.
Technical scheme of the present invention：
A kind of vacuum interrupter for from even pressure type vacuum circuit breaker with multi breaks, including upper end cover 1, static contact 2, BST
Ceramic case 4, shielding case 5, moving contact 6, bellows shield cover 7, bellows 8 and bottom end cover 9.
The BST ceramic cases 4 are columnar hollow structure, upper end cover 1 and bottom end cover 9 respectively with BST ceramic cases about 4 two
Airtight connection is held, vacuum sealing space is constituted.
The shielding case 5 is fixed on 4 inner wall of BST ceramic cases；The top of static contact 2 is connect with the lower face of upper end cover 1；
The lower end axis of moving contact 6 penetrates bottom end cover 9, and the bellows 8 being connect with bottom end cover 9 is cased on the axis of lower end, and bellows 8 plays spring
Effect enables moving contact 6 to move up and down in BST ceramic cases 4.Static contact 2 is coaxial corresponding with moving contact 6, under static contact 2
It portion and is placed in inside shielding case 5 with the top of moving contact 6；Bellows shield cover 7 is sleeved on the outside of bellows 8.
Further, a kind of vacuum interrupter for from even pressure type vacuum circuit breaker with multi breaks also includes ceramic inner casing
3, the ceramic inner casing 3 is columnar hollow structure, is placed between BST ceramic cases 4 and shielding case 5.
The ceramic inner casing 3 is using the CaO-Al containing 95% aluminium oxide2O3-SiO2System alumina porcelain；BST ceramic cases 4 are adopted
With the ceramic material BST for the high-k that barium strontium adulterates, dielectric constant 2300, insulation resistance is more than 1 × 1011Ω。
The component of BST ceramic cases 4 by percentage to the quality, includes 60% BaTiO3, 25% SrTiO3, 13% Bi2O3·
3TiO2, 1.5% Co2O3With 0.5% Fe3O4。
The dimensional parameters of BST ceramic cases 4 meet formula 7.82L=(R1-R2)；
Wherein, L is 4 height of BST ceramic cases, R1For the outer diameter of BST ceramic cases 4, R2For the internal diameter of BST ceramic cases 4.
Upper end cover 1 and bottom end cover 9 are used as electrode, the BST ceramic cases 4 of high-k to be used as dielectric, constitute one
The larger equivalent capacity of capacity.
Beneficial effects of the present invention：There are two types of realization methods for the vacuum interrupter of pressing certainly of the present invention, pass through BST ceramic cases
High-k performance improve vacuum interrupter equivalent capacity parameter.Based on it is this from even pressure type vacuum interrupter constitute
Vacuum circuit breaker with multi breaks, can be under conditions of no equalizing capacitance, and voltage is uniformly distributed between realizing each fracture, is improved
The connecting-disconnecting function of vacuum circuit breaker with multi breaks.It is this simple in structure from even pressure type vacuum circuit breaker with multi breaks vacuum interrupter,
It is easy to implement.Meanwhile use of the equalizing capacitance in vacuum circuit breaker with multi breaks can be replaced, avoid equalizing capacitance from cut-offfing
Adverse effect and security risk are brought in journey.
Description of the drawings
Fig. 1 is 1 structural schematic diagram of Novel vacuum interrupter.
Fig. 2 is 2 structural schematic diagram of Novel vacuum interrupter.
In figure, 1 upper end cover；2 static contacts；3 ceramic inner casings；4BST ceramic cases；5 shielding cases；6 moving contacts；7 bellows shields
Cover；8 bellowss；Bottom end cover 9.
Specific implementation mode
Describe the specific implementation mode of the present invention in detail below in conjunction with technical solution and attached drawing.
As shown in Figure 1, a kind of for from the vacuum interrupter of even pressure type vacuum circuit breaker with multi breaks, including it is upper end cover 1, quiet
Contact 2, ceramic inner casing 3, BST ceramic cases 4, shielding case 5, moving contact 6, bellows shield cover 7, bellows 8 and bottom end cover 9.
The BST ceramic cases 4 and ceramic inner casing 3 are columnar hollow structure, and ceramic inner casing 3 is placed in BST ceramic cases 4,
Upper end cover 1 and bottom end cover 9 the upper and lower ends airtight connection with BST ceramic cases 4 and ceramic case 3 respectively, constitute vacuum sealing space.
The shielding case 5 is placed in ceramic inner casing 3, and static contact 2 is connect with the lower face of upper end cover 1；Under moving contact 6
End axis penetrates bottom end cover 9, and the bellows 8 being connect with bottom end cover 9 is cased on the axis of lower end, and bellows 8 plays spring, makes to touch
First 6 can move up and down.Static contact 2 is coaxial corresponding with moving contact 6, and bellows shield cover 7 is sleeved on the outside of bellows 8.
The ceramic inner casing 3 is using the CaO-Al containing 95% aluminium oxide2O3-SiO2System alumina porcelain；BST ceramic cases 4 are adopted
With the ceramic material BST for the high-k that barium strontium adulterates, dielectric constant 2300, insulation resistance is more than 1 × 1011Ω。
The component of BST ceramic cases 4 by percentage to the quality, includes 60% BaTiO3, 25% SrTiO3, 13% Bi2O3·
3TiO2, 1.5% Co2O3With 0.5% Fe3O4。
Upper end cover 1 and bottom end cover 9 are used as electrode, the BST ceramic cases 4 of high-k to be used as dielectric, constitute one
The larger equivalent capacity of capacity.
For the arc-chutes there are two types of realization method, one is exhausted using two layers from even pressure type vacuum interrupter (vacuum interrupter 1)
Edge ceramic case, internal layer ceramic case use the CaO-Al2O3-SiO2 system alumina porcelains containing 95% aluminium oxide；Outer layer ceramic case uses
The ceramic material of the high-k of barium strontium doping.Vacuum interrupter internal layer ceramic case plays the role of sealing vacuum, together
When with outer layer ceramic case form equivalent self-capacitance.Change outer layer ceramic case component and plays the increase equivalent self-capacitance of vacuum interrupter
Effect.Secondly the realization method from even pressure type vacuum interrupter (vacuum interrupter 2) is, 95% oxygen is replaced using BST ceramic cases
Change aluminium ceramic case, increase the equivalent capacity parameter of vacuum interrupter while sealing vacuum, realizes from even pressure type vacuum extinction
The integration of room.
The amount of capacity of the equivalent capacity from even pressure type vacuum interrupter under two ways depends on both depending on BST potteries
The relative dielectric constant of ceramic shell and its thickness.The vacuum circuit breaker with multi breaks being made of this vacuum interrupter reaches multibreak
The effect that the equivalent capacity parameter of each fracture is 500pF in mouth vacuum circuit breaker.To adapt to cut-off different short circuit current occasions
Requirement in lower vacuum circuit breaker with multi breaks to vacuum interrupter can select to be suitably composed multi-break vacuum circuit breaker according to formula
The outer layer ceramic case dimensional parameters of vacuum interrupter meet formula 7.82L=(R in device1-R2), wherein L is that BST ceramic cases 4 are high
Degree, R1For the outer diameter of BST ceramic cases 4, R2For the internal diameter of BST ceramic cases 4.
Claims (5)
1. a kind of for from the vacuum interrupter of even pressure type vacuum circuit breaker with multi breaks, which is characterized in that including upper end cover (1),
Static contact (2), BST ceramic cases (4), shielding case (5), moving contact (6), bellows shield cover (7), bellows (8) and bottom end cover
(9)；
The BST ceramic cases (4) are columnar hollow structure, upper end cover (1) and bottom end cover (9) respectively on BST ceramic cases (4)
Lower both ends airtight connection constitutes vacuum sealing space；
The shielding case (5) is fixed on BST ceramic cases (4) inner wall；The lower face on the top and upper end cover (1) of static contact (2)
Connection；The lower end axis of moving contact (6) penetrates bottom end cover (9), and the bellows (8) being connect with bottom end cover (9) is cased on the axis of lower end,
Bellows (8) plays spring, makes moving contact (6) that can move up and down in BST ceramic cases (4)；Static contact (2) and moving contact
(6) coaxial corresponding, the lower part of static contact (2) and to be placed in shielding case (5) with the top of moving contact (6) internal；Bellows shield cover
(7) it is sleeved on the outside of bellows (8)；
The BST ceramic cases (4) are using the ceramic material BST of the high-k of barium strontium doping, and component is with quality
Percentages include 60% BaTiO3, 25% SrTiO3, 13% Bi2O3·3TiO2, 1.5% Co2O3With 0.5%
Fe3O4。
2. vacuum interrupter as described in claim 1, which is characterized in that also include ceramic inner casing (3), the ceramic inner casing
(3) it is columnar hollow structure, is placed between BST ceramic cases (4) and shielding case (5)；Ceramic inner casing (3) is using containing 95% aluminium oxide
CaO-Al2O3-SiO2System alumina porcelain.
3. such as the vacuum interrupter of claims 1 or 2, which is characterized in that the dielectric constant of BST ceramic cases (4) is 2300, insulation
Resistance is more than 1 × 1011Ω。
4. vacuum interrupter as claimed in claim 1 or 2, which is characterized in that the dimensional parameters of BST ceramic cases (4) meet public
Formula 7.82L=(R1-R2)；
Wherein, L is BST ceramic cases (4) height, R1For the outer diameter of BST ceramic cases (4), R2For the internal diameter of BST ceramic cases (4).
5. vacuum interrupter as claimed in claim 3, which is characterized in that the dimensional parameters of BST ceramic cases (4) meet formula
7.82L=(R1-R2)；
Wherein, L is BST ceramic cases (4) height, R1For the outer diameter of BST ceramic cases (4), R2For the internal diameter of BST ceramic cases (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337488.5A CN108321000B (en) | 2018-04-12 | 2018-04-12 | Vacuum arc-extinguishing chamber for self-equalizing multi-fracture vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337488.5A CN108321000B (en) | 2018-04-12 | 2018-04-12 | Vacuum arc-extinguishing chamber for self-equalizing multi-fracture vacuum circuit breaker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112435889A (en) * | 2020-12-01 | 2021-03-02 | 郑州大学 | High-voltage integrated static and dynamic self-voltage-sharing vacuum arc extinguish chamber |
| CN112509854A (en) * | 2020-12-11 | 2021-03-16 | 郑州大学 | Integrated resistance-capacitance voltage-sharing vacuum arc extinguish chamber |
| CN112786346A (en) * | 2021-01-07 | 2021-05-11 | 郑州大学 | Double-fracture self-voltage-sharing vacuum arc extinguish chamber |
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|---|---|---|---|---|
| CN112435889A (en) * | 2020-12-01 | 2021-03-02 | 郑州大学 | High-voltage integrated static and dynamic self-voltage-sharing vacuum arc extinguish chamber |
| CN112509854A (en) * | 2020-12-11 | 2021-03-16 | 郑州大学 | Integrated resistance-capacitance voltage-sharing vacuum arc extinguish chamber |
| CN112786346A (en) * | 2021-01-07 | 2021-05-11 | 郑州大学 | Double-fracture self-voltage-sharing vacuum arc extinguish chamber |
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| CN108321000B (en) | 2024-01-02 |
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