CN102568913A - Vacuum circuit breaker with improved rated current - Google Patents
Vacuum circuit breaker with improved rated current Download PDFInfo
- Publication number
- CN102568913A CN102568913A CN2011104546853A CN201110454685A CN102568913A CN 102568913 A CN102568913 A CN 102568913A CN 2011104546853 A CN2011104546853 A CN 2011104546853A CN 201110454685 A CN201110454685 A CN 201110454685A CN 102568913 A CN102568913 A CN 102568913A
- Authority
- CN
- China
- Prior art keywords
- vacuum circuit
- breaker
- auxiliary switch
- switch
- control device
- 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
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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
- H01H33/60—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
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
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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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/125—Load break switches comprising a separate circuit breaker
- H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
-
- 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
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
- H01H33/143—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc of different construction or type
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a vacuum circuit breaker with an improved rated current, comprising an arc extinguish chamber of the vacuum circuit breaker, wherein an auxiliary switch is arranged outside the arc extinguish chamber of the vacuum circuit breaker and is in parallel connection of the arc extinguish chamber; the action property of the auxiliary switch is switching-off after switching-on, namely the switching-off action of the vacuum circuit breaker is lagged for a certain period of time and the switching-on action is finished a certain period of time ahead relative to the vacuum circuit breaker. According to the invention, a technology that the vacuum circuit breaker is connected with the auxiliary switch in parallel is utilized so that the current flowing through the arc extinguish chamber of the vacuum circuit breaker can be effectively reduced through the shunting action of the auxiliary switch, so as to further improve the level of the rated current.
Description
Technical field
The present invention relates to a kind of vacuum circuit-breaker, be specifically related to the vacuum circuit-breaker that a kind of rated current is improved.
Background technology
Along with significantly improving of vacuum switch theoretical research and manufacturing technology level; Domestic and international in recent years electrical equipment manufacturer and scientific research institution competitively begin to carry out the research and development of high voltage, high current vacuum circuit breaker, but the rated current parameter of vacuum circuit-breaker is not easy to improve.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists; The vacuum circuit-breaker that the object of the present invention is to provide a kind of rated current to be improved; The present invention adopts vacuum circuit-breaker parallel connection auxiliary switch technology; The shunting action of vacuum circuit-breaker arc control device through auxiliary switch effectively reduced flow through vacuum circuit-breaker arc control device electric current, and then improve its rated current level.
For achieving the above object, the present invention adopts following technical scheme:
The vacuum circuit-breaker that a kind of rated current is improved comprises vacuum circuit-breaker arc control device 1, it is characterized in that: be outside equipped with the auxiliary switch parallelly connected with it 2 at vacuum circuit-breaker arc control device 1.
The operating characteristics of said auxiliary switch 2 is " afterwards closing first branch ", promptly with respect to vacuum circuit-breaker feed motion hysteresis Preset Time, and the separating brake action preset in advance time.
Said auxiliary switch 2 places airborne switch for secret switch or contact.
The contact of said auxiliary switch 2 can adopt plug-in type structure of contact terminal or dock structure of contact terminal.
Said auxiliary switch 2 is if adopt secret switch, the material that its inside can adopt vacuum medium or blanketing gas, liquid etc. to be easy to dispel the heat.
Said auxiliary switch 2 is if adopt secret switch, and then secret switch and vacuum circuit-breaker arc control device 1 place same obturator, or place outside vacuum circuit-breaker arc control device 1 obturator.
The present invention compares with prior art has following advantage:
1, at vacuum circuit-breaker arc control device 1 loong shunt auxiliary switch 2; When the vacuum circuit breaker is in "on" position,, can effectively reduces and flow through vacuum circuit-breaker arc control device electric current through the shunting action of auxiliary switch 2; Therefore, improved the rated current level of vacuum circuit-breaker.
2, auxiliary switch 2 adopts the design of " afterwards closing first branch " operating characteristics; It is logical or cut-off that loop current leans on vacuum circuit-breaker arc control device 1 to close splice grafting; Can avoid effectively that prebreakdown betides auxiliary switch 2 in the making process; Or electric arc combustion phenomena on auxiliary switch 2 in the separating brake process, cause its melting welding or scaling loss.
Description of drawings
The vacuum circuit-breaker circuit diagram that Fig. 1 is improved for rated current of the present invention.
Fig. 2 is vacuum circuit-breaker arc control device of the present invention and auxiliary switch branch---making process action sketch map.Wherein, Fig. 2 a closes process for closing, and (3), (4), (5) are three kinds of operate conditions of making process vacuum circuit-breaker arc control device and auxiliary switch among the figure; Fig. 2 b is a breaking course, and (6), (7), (8) are three kinds of operate conditions of separating brake process vacuum circuit-breaker arc control device and auxiliary switch among the figure.
Fig. 3 is vacuum circuit-breaker arc control device and auxiliary switch divide-shut brake action timing diagram.Among the figure: 9 is vacuum circuit-breaker arc control device closing operations; 10 is the auxiliary switch closing operation; 11 are the operation of vacuum circuit-breaker arc control device branch; 12 are the operation of auxiliary switch branch.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in more detail.
As shown in Figure 1; The vacuum circuit-breaker that a kind of rated current of the present invention is improved; Comprise vacuum circuit-breaker arc control device 1 and the auxiliary switch 2 parallelly connected, when the vacuum circuit breaker is in "on" position, reduce the electric current that flows through vacuum interrupter through the auxiliary switch shunting action with it.Auxiliary switch 2 can adopt secret switch or contact to place airborne switch.
As shown in Figures 2 and 3; The operating characteristics of the auxiliary switch 2 that the present invention and vacuum circuit-breaker arc control device 1 are parallelly connected is " afterwards closing first branch ", and during combined floodgate, contact closes earlier in the vacuum circuit-breaker arc control device 1; Bear the impact of prebreakdown current, auxiliary switch 2 contact closure relatively lag behind time of Δ t; During separating brake, auxiliary switch 2 contacts separate earlier, and electric current is all through behind the vacuum circuit-breaker arc control device 1 contact Δ t, and vacuum circuit-breaker arc control device 1 contact separates, the dynamic and static contact disjunction of arc control device loop current.
Claims (6)
1. the vacuum circuit-breaker that rated current is improved comprises vacuum circuit-breaker arc control device (1), it is characterized in that: be outside equipped with the auxiliary switch parallelly connected with it (2) at vacuum circuit-breaker arc control device (1).
2. vacuum circuit-breaker according to claim 1 is characterized in that: the operating characteristics of said auxiliary switch (2) is " afterwards closing first branch ", promptly with respect to vacuum circuit-breaker feed motion hysteresis Preset Time, and the separating brake action preset in advance time.
3. vacuum circuit-breaker according to claim 1 is characterized in that: said auxiliary switch (2) places airborne switch for secret switch or contact.
4. according to claim 2 or 3 described vacuum circuit-breakers, it is characterized in that: the contact of said auxiliary switch (2) can adopt plug-in type structure of contact terminal or dock structure of contact terminal.
5. according to claim 2 or 3 described vacuum circuit-breakers, it is characterized in that: said auxiliary switch (2) is as if adopting secret switch, its inner material that adopts vacuum medium or blanketing gas, liquid etc. to be easy to dispel the heat.
6. according to claim 2 or 3 described vacuum circuit-breakers; It is characterized in that: said auxiliary switch (2) adopts secret switch; Secret switch and vacuum circuit-breaker arc control device (1) place same obturator, or place outside vacuum circuit-breaker arc control device (1) obturator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104546853A CN102568913A (en) | 2011-12-21 | 2011-12-21 | Vacuum circuit breaker with improved rated current |
| PCT/CN2012/072535 WO2013091312A1 (en) | 2011-12-21 | 2012-03-19 | Vacuum circuit breaker with improved rated current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104546853A CN102568913A (en) | 2011-12-21 | 2011-12-21 | Vacuum circuit breaker with improved rated current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568913A true CN102568913A (en) | 2012-07-11 |
Family
ID=46414069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104546853A Pending CN102568913A (en) | 2011-12-21 | 2011-12-21 | Vacuum circuit breaker with improved rated current |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102568913A (en) |
| WO (1) | WO2013091312A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637882A (en) * | 2018-10-25 | 2019-04-16 | 国网宁夏电力有限公司电力科学研究院 | Vacuum circuit breaker |
| CN110741456A (en) * | 2017-04-21 | 2020-01-31 | 奥马萨瓦尔有限公司 | Operating device and method |
| CN112509857A (en) * | 2020-09-25 | 2021-03-16 | 平高集团有限公司 | Combined high-voltage direct-current bypass switch |
| CN113130247A (en) * | 2019-12-30 | 2021-07-16 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN117526237A (en) * | 2023-09-28 | 2024-02-06 | 天津大学 | Environment-friendly generator outlet circuit breaker topological structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2174773Y (en) * | 1993-07-15 | 1994-08-17 | 张鸿祥 | Energy-storage tripping device for electric arc furnace steelmaking |
| CN2447927Y (en) * | 2000-08-09 | 2001-09-12 | 李彤 | Device for increasing rated current of vacuum circuit breaker |
| CN101217078A (en) * | 2008-01-04 | 2008-07-09 | 西安交通大学 | A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| CN101552152A (en) * | 2008-04-02 | 2009-10-07 | 日本Ae帕瓦株式会社 | Large-capacity vacuum circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3824359A (en) * | 1972-10-06 | 1974-07-16 | Mc Graw Edison Co | Vacuum loadbreak switch |
| US3825789A (en) * | 1973-06-29 | 1974-07-23 | Gen Electric | Vacuum arc devices with hard, ductile, ferrous electrodes |
| DE3832493A1 (en) * | 1988-09-22 | 1990-03-29 | Siemens Ag | VACUUM SWITCH TUBES, A SWITCH DISCONNECT CONTAINING SUCH A SWITCH TUBE AND METHOD FOR OPERATING SUCH A SWITCH DISCONNECTOR |
| CN101393818A (en) * | 2008-10-10 | 2009-03-25 | 国网武汉高压研究院 | High-voltage vacuum circuit breaker |
-
2011
- 2011-12-21 CN CN2011104546853A patent/CN102568913A/en active Pending
-
2012
- 2012-03-19 WO PCT/CN2012/072535 patent/WO2013091312A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2174773Y (en) * | 1993-07-15 | 1994-08-17 | 张鸿祥 | Energy-storage tripping device for electric arc furnace steelmaking |
| CN2447927Y (en) * | 2000-08-09 | 2001-09-12 | 李彤 | Device for increasing rated current of vacuum circuit breaker |
| CN101217078A (en) * | 2008-01-04 | 2008-07-09 | 西安交通大学 | A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| CN101552152A (en) * | 2008-04-02 | 2009-10-07 | 日本Ae帕瓦株式会社 | Large-capacity vacuum circuit breaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110741456A (en) * | 2017-04-21 | 2020-01-31 | 奥马萨瓦尔有限公司 | Operating device and method |
| CN109637882A (en) * | 2018-10-25 | 2019-04-16 | 国网宁夏电力有限公司电力科学研究院 | Vacuum circuit breaker |
| CN113130247A (en) * | 2019-12-30 | 2021-07-16 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN113130247B (en) * | 2019-12-30 | 2022-11-22 | 西安西电高压开关有限责任公司 | Combined bypass switch |
| CN112509857A (en) * | 2020-09-25 | 2021-03-16 | 平高集团有限公司 | Combined high-voltage direct-current bypass switch |
| CN112509857B (en) * | 2020-09-25 | 2023-04-07 | 平高集团有限公司 | Combined high-voltage direct-current bypass switch |
| CN117526237A (en) * | 2023-09-28 | 2024-02-06 | 天津大学 | Environment-friendly generator outlet circuit breaker topological structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013091312A1 (en) | 2013-06-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |