EP3698390A1 - Überdruckfeste vakuumschaltröhre - Google Patents
Überdruckfeste vakuumschaltröhreInfo
- Publication number
- EP3698390A1 EP3698390A1 EP18815521.2A EP18815521A EP3698390A1 EP 3698390 A1 EP3698390 A1 EP 3698390A1 EP 18815521 A EP18815521 A EP 18815521A EP 3698390 A1 EP3698390 A1 EP 3698390A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum interrupter
- stiffened
- region
- fixed contact
- moving contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
-
- 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
- H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
-
- 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
- H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles
Definitions
- the invention relates to a pressure-resistant vacuum interrupter for medium voltage switchgear and Hochhardsschaltanla conditions and a switchgear with such a pressure-resistant vacuum interrupter.
- Vacuum interrupters of the prior art are not suitable for operation under high ambient pressure.
- high ambient pressures of more than one bar (1 bar), in particular more than two bars (2 bar) lead to deformations on the fixed contact flange and / or the moving contact flange.
- the se deformations affect the function of the vacuum interrupter and can also lead to the destruction of the vacuum switching tube.
- the object of the invention is now to provide an overpressure-resistant vacuum interrupter, which reduces or prevents deformation of the fixed contact flange and / or the Bewegumbleflansches.
- the vacuum interrupter at least one insulating body, a fixed contact, a fixed contact flange, a moving contact with a longitudinal axis of the moving contact, a Beweg.flansch, a bellows, wherein the fixed contact is fixedly arranged in the Fest.flansch, the BewegCount is movably guided and the Bewegkon Tact through the bellows movable on Beweg.flansch is taken fastened, wherein the bellows with a first Balgende the moving contact flange is fixed and the bellows is attached to a second Balgende the moving contact, the vacuum interrupter against deformation of at least one of Fest.flansch and BewegTypeflansch by an ambient pressure of the vacuum interrupter of more than two bar (2 bar) is protected by a stiffened Fest.flansch and / or Bewegkon contact flange.
- An ambient pressure of more than 2 bar occurs in particular when a vacuum interrupter in a gas-insulated loading container with an insulating gas is arranged and the gas pressure in the gas-insulated container is more than 2 bar.
- the vacuum interrupter but also in a fluid, in particular special an insulating fluid, be arranged and the surrounding ambient pressure more than 2 bar.
- the vacuum interrupter can be acted upon by a solid, in particular a solid material insulation, with a pressure of 2 bar.
- the ambient pressure describes as acting on the outside of the vacuum interrupter pressure.
- stiffening of the stiffened Festkon contact flange and / or the stiffened Beweg.flansches by one, the respective Fest.flansch or per respective Beweg.flansch associated, structural element is achieved, at least partially oriented in the interior of the vacuum interrupter shape of the stiffened Festkon contact flange and / or the stiffened Beweg.flansches simulates.
- the structural element thereby increases the stability of the respec conditions stiffened Fest.flansches and / or the stiffened Beweg.flansches without the transition between the Isolie relement and the stiffened Fest.flansch and / or the stiffened Beweg.flansch stronger mechanically to th th.
- the structural element has a first region and a second region, wherein the first region extends substantially perpendicular to the longitudinal axis of the moving contact and the second region extends in the direction of rotation. sentlichen parallel to the longitudinal axis of the moving contact he stretches, wherein the first region substantially simulates the oriented in the interior of the vacuum interrupter shape of the stiffened FestAuthflansches and / or the stiffened moving contact flange and the second region of the first Be rich essentially supports.
- a shield element is arranged between the fixed contact flange and the insulating element or on the fixed contact flange.
- the second region of the Strukturele Mentes the first region of the structural element against the insulating or against the insulating element on the shield element or against a third portion of the Fest.flan cal supported and the first region so the fixed contact flange protects against deformation.
- the structural element or elements are not soldered to the vacuum interrupter or components of the vacuum interrupter. This prevents me tional stresses induced in the connection, in particular soldering, between the insulating element and stiffened Fest.flansch and / or the stiffened Beweg.flansch who the.
- the stiffening of the stiffened Fest.flansches and / or the stiffened moving contact flange is achieved by a thicker, thicker, version of ver stiffened Fest.flansches and / or stiffened Beweg contact flange, wherein the stiffened Festkon contact flange and / or stiffened BewegCountflansch from a Material is formed, which has a coefficient of expansion, which is similar to the expansion coefficient of the insulating body.
- a deviation of 10% from the coefficient of expansion of the material of the rigid fixed contact flange and / or the stiffened moving part should similarly be used.
- Contact flange and the expansion coefficient of Iso lier emotionss mean, more preferably less than 5%.
- the insulating body is formed from a ceramic and that the stiffened fixed contact flanges and / or the stiffened Bewegumbleflansch contains a FeNiCo alloy or is formed from this.
- Switchgear with a vacuum interrupter for medium voltage applications or high voltage applications, wherein the vacuum interrupter tube is arranged in a gas-tight container which is filled with an insulating gas and the insulating gas in the gas-tight container a pressure of at least 2 bar, preferably greater than 3 bar.
- the insulating gas comprises one or more of fluoroketones, nitriles, nitrogen, oxygen and carbon dioxide.
- the insulating gas contains nitrogen and carbon dioxide or a fluoroketone and nitrogen or a fluoroketone and oxygen or a fluoroketone and carbon dioxide.
- the insulating gas consists of 80% nitrogen and 20% carbon dioxide. The percentages refer to percent by mass or percent by volume.
- Figure 1 section through the region of the fixed contact flange of a conventional vacuum interrupter
- Figure 2 section through area of Fest.flansches egg ner vacuum interrupter according to the invention with stiffened fixed contact flange
- Figure 3 section through a vacuum interrupter with inven tion stiffened Fest.flansch and stiffened Be weg.flansch;
- Figure 4 section through area of Fest.flansches egg ner vacuum interrupter according to the invention with stiffened fixed contact flange
- FIG. 1 shows a section through the region of the fixed contact flange 40 of a conventional vacuum interrupter.
- the fixed contact rod 32 is connected to the fixed contact flange 40 ver and is thus ge leads into the interior of a vacuum interrupter.
- the Festippoflansch 40 is in turn attached to a Iso lierteil 20 of the vacuum interrupter.
- a screen element 90 is fixed between the fixed contact flange 40 and the insulating part 20.
- the shielding element 90 may also be fixed to the fixed contact flange 40 and the fixed contact flange 40 may be fastened directly to the insulating part 20.
- FIG. 2 shows a section through the region of the fixed contact flange 40 'of a vacuum cupping tube according to the invention with stiffened fixed contact flange 40'.
- the fixed contact rod 32 is again connected to the Festippoflansch 40 'and is guided in the interior of a vacuum interrupter according to the invention.
- the fixed contact flange 40 ' is in turn fixed to an insulating part 20 of the vacuum interrupter.
- a screen element 90 is fastened between the fixed contact flange 40 'and the insulating part 20.
- the shield member 90 can also be fixed to the fixed contact flange 40 'and the fixed contact flange 40' di rectly attached to the insulating part 20.
- the fixed contact flange 40 ' is stiffened in the example of Figure 2 by the structural element 45.
- the structural element 45 forms in a first region 46, which is oriented in wesent Licher perpendicular to the longitudinal axis 56 of the fixed contact 30, substantially in the interior of the vacuum interrupter directed form of Fest.flansches 40 'and is in this case even on the Fixed contact flange 40 'on.
- a second region 47 of the structural element 45 which is oriented substantially parallel to the longitudinal axis 56 of the fixed contact 30, the second region 47 supports the first region 46 against the fixed contact flange 40 '.
- the second region 47 of the structural element 45 may also support the first region 46 of the structural element 45 against the insulating element 20 and / or the shielding element 90.
- FIG. 3 shows a section through a vacuum interrupter 10 with a fixed contact flange 40 'stiffened according to the invention and a stiffened moving contact flange 60'.
- the vacuum interrupter 10 has in this embodiment four Isolierele elements 20, wherein between two insulating 20 is a inter mediate element 25 is arranged, which can hen best of an electrically conductive or electrically non-conductive material.
- the moving contact 50 is movably guided into the vacuum interrupter 10 by means of a bellows 80, a first bellows end 82 being fixed to the stiffened movable contact flange 60 'and a second bellows end 84 being attached to the movers contact bar 52, either directly or via a bellows cap 86.
- the bellows cap an optional bellows screen 88.
- the BewegCountflansch 60 ' is connected directly or via a shield element 90 with an insulating member 20 of the vacuum interrupter 10.
- the BewegCountflansch 60 ' is stiffened by the support member 65.
- the structural element 65 has a first region 66, which is oriented substantially perpendicular to the longitudinal axis 56 of the moving contact 50, substantially the directed into the interior of the vacuum interrupter shape of the Beweg contact flange 60 'and in this case is even on the BewegCountflansches 60th ' on.
- a second region 67 of the structural element 65 which is oriented substantially parallel to the longitudinal axis 56 of the moving contact 50
- the second region 67 supports the first region 66 against the Beweg contact flange 60 'from.
- the second region 67 of the structural element 65 may support the first region 66 of the structural element 65 against the insulating element 20 and / or the shielding element 90.
- the moving contact 50 in the exemplary embodiment consists of a moving contact rod 53, a moving contact body 55 and a moving contact disc 54.
- the fixed contact 30 is formed here by a fixed contact rod 32, a solid contact body 35 and a Fest.Walletschei be 34 and with the Fest.flansch 40 'verbun the and is so in the interior of a vacuum interrupter 10 of the invention.
- the Fest.flansch 40 ' is re rum attached to an insulating part 20 of the vacuum interrupter.
- a shield element 90 is fastened between the fixed contact flange 40 'and the insulating part 20.
- the shield member 90 can also be fixed to the fixed contact flange 40 'and the fixed contact flange 40' di rectly attached to the insulating part 20.
- the fixed contact flange 40 ' is stiffened by the structural element 45 in the example of FIG.
- the structural element 45 forms into a first region 46, which essentially Licher is oriented perpendicular to the longitudinal axis 56 of the fixed contact 30, substantially in the interior of the vacuum interrupter directed form of Fest.flansches 40 'and in this case is even on the Fest.flansches 40' at.
- a second region 47 of the structural element 45 which is oriented substantially parallel to the longitudinal axis 56 of the fixed contact 30, the second region 47 supports the first region 46 against the fixed contact flange 40 '.
- the second region 47 of the structural element 45 may also support the first region 46 of the structural element 45 against the insulating element 20 and / or the shielding element 90.
- FIG. 4 shows a section through the region of the fixed contact flange 40 '' of a vacuum interrupter according to the invention with stiffened fixed contact flange 40 ''.
- the fixed contact rod 32 is connected to the fixed contact flange 40 '' and is thus guided into the interior of a vacuum interrupter according to the invention.
- the fixed contact flange 40 " is fixed to an insulating part 20 of the vacuum interrupter.
- a shield element 90 is secured between the fixed contact flange 40 "and the insulating part 20.
- the shielding member 90 may also be fixed to the fixed contact flange 40 'and the fixed contact flange 40 "may be attached directly to the insulating member 20.
- the Fest.flansch 40 '' is stiffened in the example of Figure 4, characterized in that a stronger, so thicker from the material, execution of the stiffened Fest.flansches 40 '' is used, wherein the stiffened Fest.flansch 40 '' is formed of a material that a Expansion coefficient has, which is similar to the expansion coefficient of Iso lier stressess 20.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017222413.4A DE102017222413A1 (de) | 2017-12-11 | 2017-12-11 | Überdruckfeste Vakuumschaltröhre |
| PCT/EP2018/081919 WO2019115175A1 (de) | 2017-12-11 | 2018-11-20 | Überdruckfeste vakuumschaltröhre |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3698390A1 true EP3698390A1 (de) | 2020-08-26 |
| EP3698390B1 EP3698390B1 (de) | 2024-02-28 |
| EP3698390C0 EP3698390C0 (de) | 2024-02-28 |
Family
ID=64661271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18815521.2A Active EP3698390B1 (de) | 2017-12-11 | 2018-11-20 | Überdruckfeste vakuumschaltröhre |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11289292B2 (de) |
| EP (1) | EP3698390B1 (de) |
| JP (1) | JP7214744B2 (de) |
| CN (1) | CN111448634B (de) |
| DE (1) | DE102017222413A1 (de) |
| WO (1) | WO2019115175A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021210795A1 (de) | 2021-09-28 | 2023-03-30 | Siemens Aktiengesellschaft | Schaltgerät mit einem Faltenbalg |
| JP2023154158A (ja) * | 2022-04-06 | 2023-10-19 | 三菱電機株式会社 | 真空バルブ |
| DE102024205907A1 (de) * | 2024-06-25 | 2026-01-08 | Siemens Energy Global GmbH & Co. KG | Vakuumschaltröhre mit Flansch |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1142209A (en) * | 1965-05-25 | 1969-02-05 | Ass Elect Ind | Improvements in and relating to contact members for vacuum switches |
| GB1210542A (en) * | 1968-04-29 | 1970-10-28 | Ass Elect Ind | Improvements relating to vacuum electric switches |
| US4071727A (en) * | 1976-05-06 | 1978-01-31 | General Electric Company | Vacuum-type circuit interrupter with means for protecting its bellows against mechanical damage |
| DE3107821A1 (de) * | 1981-02-26 | 1982-09-09 | Siemens AG, 1000 Berlin und 8000 München | Vakuumschaltroehre mit metallkappe |
| JPS5894233U (ja) | 1981-12-19 | 1983-06-25 | 株式会社明電舎 | 真空インタラプタ |
| DE3825407A1 (de) * | 1988-07-27 | 1990-02-01 | Sachsenwerk Ag | Schaltkammer eines vakuumschalters |
| DE3832493A1 (de) * | 1988-09-22 | 1990-03-29 | Siemens Ag | Vakuumschaltroehre, eine solche schaltroehre enthaltender lasttrennschalter und verfahren zum betrieb eines solchen lasttrennschalters |
| US4933518A (en) * | 1988-10-03 | 1990-06-12 | Square D Company | Vacuum interrupter |
| DE4133091C2 (de) * | 1991-09-30 | 1995-06-01 | Siemens Ag | Vakuumschalter mit einer Antriebsvorrichtung und einer Polantriebseinheit |
| DE4214550A1 (de) * | 1992-04-29 | 1993-11-04 | Siemens Ag | Vakuumschaltroehre |
| JP3361932B2 (ja) * | 1996-05-29 | 2003-01-07 | 三菱電機株式会社 | 真空バルブ |
| EP1059650B1 (de) | 1999-06-10 | 2004-04-21 | ABB Technology AG | Vakuumkammer |
| DE10007907C2 (de) | 1999-06-10 | 2002-03-14 | Abb T & D Tech Ltd | Vakuumschaltkammer |
| DE102006041149B4 (de) * | 2006-09-01 | 2008-09-04 | Abb Technology Ag | Vakuumschaltkammer für Mittelspannungsschaltanlagen |
| US7781694B2 (en) * | 2007-06-05 | 2010-08-24 | Cooper Technologies Company | Vacuum fault interrupter |
| KR101362622B1 (ko) * | 2010-02-24 | 2014-02-12 | 미쓰비시덴키 가부시키가이샤 | 진공밸브 |
| CN102456504A (zh) * | 2010-10-21 | 2012-05-16 | 湖北汉光科技股份有限公司 | 高、低压开关用长寿命真空灭弧室 |
| US9190232B2 (en) * | 2011-09-07 | 2015-11-17 | Mitsubishi Electric Corporation | Tank-type circuit breaker |
| WO2014198301A1 (en) * | 2013-06-11 | 2014-12-18 | Alstom Technology Ltd | Vacuum switching assembly |
| JP2015035288A (ja) * | 2013-08-08 | 2015-02-19 | 株式会社日立製作所 | 真空スイッチギヤ用真空バルブ |
| CN203931925U (zh) * | 2014-07-12 | 2014-11-05 | 锦州华光玻璃开关管有限公司 | 高压真空开关管加强型静端盖封接结构 |
| CN107342185B (zh) * | 2017-09-06 | 2020-04-17 | 北京京东方真空电器有限责任公司 | 一种真空开关管及真空开关 |
-
2017
- 2017-12-11 DE DE102017222413.4A patent/DE102017222413A1/de active Pending
-
2018
- 2018-11-20 CN CN201880079523.6A patent/CN111448634B/zh active Active
- 2018-11-20 WO PCT/EP2018/081919 patent/WO2019115175A1/de not_active Ceased
- 2018-11-20 JP JP2020549871A patent/JP7214744B2/ja active Active
- 2018-11-20 EP EP18815521.2A patent/EP3698390B1/de active Active
- 2018-11-20 US US16/771,806 patent/US11289292B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019115175A1 (de) | 2019-06-20 |
| CN111448634A (zh) | 2020-07-24 |
| EP3698390B1 (de) | 2024-02-28 |
| US11289292B2 (en) | 2022-03-29 |
| JP2021506094A (ja) | 2021-02-18 |
| US20210074493A1 (en) | 2021-03-11 |
| JP7214744B2 (ja) | 2023-01-30 |
| CN111448634B (zh) | 2023-02-28 |
| DE102017222413A1 (de) | 2019-06-13 |
| EP3698390C0 (de) | 2024-02-28 |
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