WO2021069169A1 - Leistungsschalter mit einer vakuumschaltkammer - Google Patents
Leistungsschalter mit einer vakuumschaltkammer Download PDFInfo
- Publication number
- WO2021069169A1 WO2021069169A1 PCT/EP2020/075078 EP2020075078W WO2021069169A1 WO 2021069169 A1 WO2021069169 A1 WO 2021069169A1 EP 2020075078 W EP2020075078 W EP 2020075078W WO 2021069169 A1 WO2021069169 A1 WO 2021069169A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vacuum interrupter
- circuit breaker
- plastic
- outer surfaces
- field control
- Prior art date
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
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- 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
Definitions
- the invention relates to a circuit breaker with a vacuum switch chamber.
- a vacuum switching chamber is understood here to mean an evacuable vacuum tube in which switching operations are carried out.
- circuit breakers are relative to each other movable switch contact elements in the vacuum interrupter is arranged to avoid or reduce a switching arc when separating the Wegkon contact elements.
- the Heidelbergkam mer is often arranged within a housing in an insulating gas, which is compressed to increase its dielectric strength by a high pressure in order to be able to arrange metallic components in the housing at a smaller distance from each other and thereby save space.
- the invention is based on the object of specifying an improved circuit breaker with a vacuum interrupter chamber.
- a circuit breaker according to the invention comprises
- the housing wall is made of an electrically insulating material, for example, from a ceramic material or from a glass fiber reinforced plastic.
- insulating gas can be saved through the plastic cover, in that the plastic cover supports the function of the insulating gas.
- the pressure of the insulating gas can be reduced by a plastic shell with a high dielectric strength, so that a sufficient dielectric strength of the system consisting of the plastic shell and the insulating gas can also be achieved with reduced pressure. This makes it possible to dispense with the use of pressure vessel parts in the interrupter unit of the circuit breaker.
- gas monitoring which would otherwise be necessary, can be dispensed with or implemented in a much simpler manner, since no immediate functional lockout has to occur in the event of leaks and a consequent drop in pressure.
- the plastic shell is made of a plastic that has a higher dielectric strength than the insulating gas.
- the plastic shell is taken from a silicone gefer.
- the insulating gas is dehumidified air or carbon dioxide.
- These Iso liergase are environmentally friendly, but have a lower insulating effect than, for example, sulfur hexafluoride.
- the Plastic casing is therefore particularly advantageous when using these insulating gases to increase the dielectric strength.
- the art is a fabric shell mer on the outer surface of Vakuumschaltkam and the portions of the outer surfaces of the brackets chicht sprayed or molded plastic S. This advantageously enables precise production of the plastic casing.
- the plastic casing is a plastic tube pushed over the outer surface of the vacuum interrupter chamber and the subregions of the outer surfaces of the holders. This enables the plastic shell to be produced without a tool for injection molding or casting the plastic shell.
- the plastic casing has a varying thickness.
- the thickness of the plastic casing can be adapted to the local dielectric strength requirements.
- the plastic shell in the area of the edges of the vacuum interrupter or the brackets is thicker than in other areas.
- the circuit breaker has at least one field control element which is arranged between the plastic sleeve and the outer surface of the vacuum switch chamber and / or a portion of the outer surface of a holder.
- a field control element denotes an element that changes the field strength of an electric field locally. Particularly large local electric field strengths can advantageously be avoided by field control elements.
- At least one field control element is made from an electrically conductive plastic, for example from a carbon black-filled silicone elastomer.
- Erium such Feldsteu can advantageous, especially with egg ner as an art S toff S chicht plastic casing running, are produced by spraying or pouring.
- the field control elements can be integrated into the plastic tube.
- At least one field control element is preferably arranged on a holder end of a holder.
- a switching chamber end of the vacuum switching chamber protrudes into each holder. This in particular simplifies the manufacture of the plastic casing in the transition areas between the vacuum interrupter and the mounts.
- FIG. 1 shows a first embodiment of a power switch
- FIG. 2 shows a second embodiment of a power switch.
- Figure 1 shows a first embodiment of a circuit breaker 1 in a sectional view.
- the circuit breaker 1 includes, among other things, a vacuum interrupter mer 3, tubular metal supports 5, 7, a housing 9 and a plastic cover 11.
- the brackets 5, 7 are arranged on opposite sides of the vacuum interrupter chamber 3 and serve in particular as a base for the vacuum interrupter chamber 3.
- a metallic interrupter chamber end 13, 15 of the vacuum interrupter chamber 3 protrudes into each bracket 5, 7.
- a first switching contact element 17 is arranged on a first holder 5 and protrudes into the vacuum switching chamber 3 through a first switching chamber opening in a first switching chamber end 13.
- a second switching contact element 19 protrudes into the vacuum switching chamber 3 through a second switching chamber opening in the second switching chamber end 15 and is movable relative to the first switching contact element 17 by a mechanism not shown.
- the switching contact elements 17, 19 surrounding areas of the vacuum switching chamber 3 each have an insulating section 21, 23 made of an electrically insulating, for example ceramic's material.
- the insulation sections 21, 23 are arranged on opposite sides of a metallic Mittelbe area of the vacuum interrupter chamber 3.
- the housing 9 comprises a housing wall 25 which is arranged from an outer surface 27 of the vacuum interrupter 3 and outer surfaces 28, 29 of the holders 5, 7 spaced around these outer surfaces 27 to 29.
- the housing wall 25 is designed as an insulating tube which is made of an electrically insulating material, for example from a ceramic material or from a glass fiber reinforced plastic, and is arranged between metal flanges.
- the circuit breaker 1 is thus designed in the so-called live tank design, in contrast to the so-called dead tank design with a grounded metallic housing.
- the plastic sleeve 11 is on the outer surface 27 of the vacuum switch chamber 3 and on subregions 28.1, 29.1 of the outer surfaces 28, 29 of both brackets 5, 7 is arranged.
- a Volume 31 between the plastic shell 11 and the housing wall 25 is filled with an insulating gas 33, for example with ent humid air or carbon dioxide.
- the plastic casing 11 is made of a plastic which has a higher dielectric strength than the insulating gas 33.
- the plastic cover 11 is made from a silicone.
- the plastic casing 11 has a varying thickness.
- the plastic sleeve 11 in the transition areas from the outer surface 27 of the vacuum interrupter 3 to the sub-areas 28.1, 29.1 of the outer surfaces 28, 29 of the brackets 5, 7 are each thicker than in adjacent Be rich.
- the plastic sheath 11 is, for example, a surface on the outside 27 of the vacuum interrupter chamber 3 and the partial preparation che 28.1, 29.1 of the outer surfaces 28, 29 of the holders 5, 7 or injected molded plastic S chicht.
- the plastic sleeve 11 is a plastic hose pushed over the outer surface 27 of the vacuum interrupter 3 and the subregions 28.1, 29.1 of the outer surfaces 28, 29 of the mountings 5, 7.
- Figure 2 shows a second embodiment of a circuit breaker 1 in a sectional view. This exemplary embodiment differs from the exemplary embodiment shown in FIG. 1 only by the annular field control elements 35 to 38, which in the case of the field control elements 36,
- a first field control element 35 is arranged on a holder end 5.1 of the first holder 5 facing the vacuum switching chamber 3
- a second field control element 36 is arranged on an end of a first insulation section 21 facing away from the first holder 5
- a third field control element 37 is on one of the second holder 7 is arranged from the end of the second insulation section 23 facing away and a fourth field control element 38 is arranged on a holder end 7.1 of the second holder 7 facing the vacuum switching chamber 3.
- Field control elements 35 to 38 can, however, also be arranged on other regions of the outer surfaces 27 to 29.
- the field control elements 35 to 38 are, for example, each made of an electrically conductive plastic, for example a carbon black-filled silicone elastomer.
- an electrically conductive plastic for example a carbon black-filled silicone elastomer.
Landscapes
- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112022005522A BR112022005522A2 (pt) | 2019-10-07 | 2020-09-08 | Disjuntor com câmara de comutação a vácuo |
CN202080070530.7A CN114503235A (zh) | 2019-10-07 | 2020-09-08 | 具有真空灭弧室的断路器 |
EP20780932.8A EP4042463A1 (de) | 2019-10-07 | 2020-09-08 | Leistungsschalter mit einer vakuumschaltkammer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019215309.7 | 2019-10-07 | ||
DE102019215309.7A DE102019215309A1 (de) | 2019-10-07 | 2019-10-07 | Leistungsschalter mit einer Vakuumschaltkammer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021069169A1 true WO2021069169A1 (de) | 2021-04-15 |
Family
ID=72659773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/075078 WO2021069169A1 (de) | 2019-10-07 | 2020-09-08 | Leistungsschalter mit einer vakuumschaltkammer |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4042463A1 (de) |
CN (1) | CN114503235A (de) |
BR (1) | BR112022005522A2 (de) |
DE (1) | DE102019215309A1 (de) |
WO (1) | WO2021069169A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021207960A1 (de) * | 2021-07-23 | 2023-01-26 | Siemens Energy Global GmbH & Co. KG | Vakuumschaltröhre und Anordnung mit Vakuumschaltröhren sowie Verfahren zum Absteuern von Vakuumschaltröhren |
DE102021207962A1 (de) * | 2021-07-23 | 2023-01-26 | Siemens Energy Global GmbH & Co. KG | Vakuumschaltröhre und Anordnung mit Vakuumschaltröhren sowie Verfahren zum Absteuern von Vakuumschaltröhren |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1443537A1 (de) * | 2003-01-31 | 2004-08-04 | Siemens Aktiengesellschaft | Anordnung mit einer Vakuumschaltröhre |
EP2187416A1 (de) * | 2008-11-14 | 2010-05-19 | Hitachi Ltd. | Vakuumschaltgetriebe |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003068175A (ja) * | 2001-08-27 | 2003-03-07 | Mitsubishi Electric Corp | 電力用開閉装置 |
DE102005039555A1 (de) * | 2005-08-22 | 2007-03-01 | Abb Technology Ltd. | Verfahren zur Herstellung von Schalterpolteilen für Nieder - Mittel - und Hochspannungsschaltanlagen, sowie Schalterpolteil selbst |
CN101410922A (zh) * | 2006-03-27 | 2009-04-15 | 三菱电机株式会社 | 开关设备及其制造方法 |
EP2407989A1 (de) * | 2010-07-15 | 2012-01-18 | ABB Technology AG | Verfahren zur Herstellung eines Polteils für einen Schutzschalter |
DE102017222933A1 (de) * | 2017-12-15 | 2019-06-19 | Siemens Aktiengesellschaft | Hochspannungsleistungsschalter und Verfahren zum Haltern einer Vakuumschaltröhre in dem Hochspannungsleistungsschalter |
-
2019
- 2019-10-07 DE DE102019215309.7A patent/DE102019215309A1/de active Pending
-
2020
- 2020-09-08 BR BR112022005522A patent/BR112022005522A2/pt unknown
- 2020-09-08 EP EP20780932.8A patent/EP4042463A1/de active Pending
- 2020-09-08 CN CN202080070530.7A patent/CN114503235A/zh active Pending
- 2020-09-08 WO PCT/EP2020/075078 patent/WO2021069169A1/de unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1443537A1 (de) * | 2003-01-31 | 2004-08-04 | Siemens Aktiengesellschaft | Anordnung mit einer Vakuumschaltröhre |
EP2187416A1 (de) * | 2008-11-14 | 2010-05-19 | Hitachi Ltd. | Vakuumschaltgetriebe |
Also Published As
Publication number | Publication date |
---|---|
BR112022005522A2 (pt) | 2023-04-18 |
CN114503235A (zh) | 2022-05-13 |
DE102019215309A1 (de) | 2021-04-08 |
EP4042463A1 (de) | 2022-08-17 |
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