EP1952414A1 - Vakuumisoliertes schaltgerät - Google Patents
Vakuumisoliertes schaltgerätInfo
- Publication number
- EP1952414A1 EP1952414A1 EP05810668A EP05810668A EP1952414A1 EP 1952414 A1 EP1952414 A1 EP 1952414A1 EP 05810668 A EP05810668 A EP 05810668A EP 05810668 A EP05810668 A EP 05810668A EP 1952414 A1 EP1952414 A1 EP 1952414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum
- vacuum vessel
- switching device
- moving contact
- grounded
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims description 16
- 238000012806 monitoring device Methods 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect 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
- H01H33/662—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
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5822—Flexible connections between movable contact and terminal
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- 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
- H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
Definitions
- the invention relates to a vacuum-insulated switching device with a grounded vacuum vessel and a contact system of a fixed contact and a moving contact, which are each connected by vacuum-tight, insulating to the housing bushings with electrical leads, the moving contact by means of an insulating transmission element and vacuum-tight coupled to a drive device is.
- Such a switching device is known from EP 09 44 105 Bl.
- the switching device disclosed therein comprises a grounded vacuum vessel in which a fixed contact via a vacuum-tight, insulating to the housing bushing is connected to an electrical connection line, and a moving contact by means of an insulating transmission element is connected to a drive device and a flexible conductor via another, to Housing insulating vacuum feedthrough is connected to a further connecting line.
- the fixed contact and the moving contact form a contact system of the switching device for forming or interrupting a conductive connection between the connecting lines.
- a pressure within the vacuum vessel of ⁇ 10 -4 hPa is required. Further, with such an arrangement, measures are required to shield the grounded vacuum vessel from the arc occurring in a switching operation.
- the object of the present invention is to further develop a vacuum-insulated switching device of the type mentioned at the outset in such a way that the requirements for the vacuum are adequate. the dielectric strength and high switching functionality are reduced.
- this object is achieved in that a further vacuum vessel is arranged in the grounded vacuum vessel and arranged in the further vacuum vessel, the fixed contact and the moving contact and led out by means of further vacuum-tight passages from the further vacuum vessel.
- the pressure in the grounded vacuum vessel is less than 10 ⁇ 2 hPa and in the further vacuum vessel less than ICT 4 hPa.
- a pressure of ⁇ 10 ⁇ 4 hPa in the second vacuum vessel advantageously ensures a sufficient switching capacity of the switching device, wherein a Pressure of ⁇ ICT 2 hPa in the first vacuum vessel is sufficient to ensure the dielectric isolation of the switching device.
- a vacuum monitoring device with a pump device is provided on the grounded vacuum vessel.
- a vacuum monitoring device with a pump device advantageously makes it possible to monitor or maintain maintaining the pressure required for dielectric isolation in the grounded vacuum vessel.
- the pump device comprises an ion getter pump.
- an ion getter pump provides a simple and inexpensive way to maintain the pressure in the first vacuum vessel.
- the coupling of the moving contact with the drive device is formed by a displaceable drive rod sealed by means of a bellows on the grounded vacuum vessel and a conductive connection between the moving contact and one of the connecting lines by means of a flexible conductor.
- the coupling of the moving contact with the drive device by a means of a bellows sealed to the grounded vacuum housing pivotable transmission element and a conductive Connection formed between the moving contact and one of the connecting lines by means of a flexible conductor.
- the transmission element can be pivoted from the moving contact into an intermediate position by decoupling the flexible conductor, which represents a separating position.
- an isolating distance is advantageously formed in the grounded vacuum vessel.
- the transmission element is pivotable into an end position, in which a conductive connection to the grounded vacuum vessel is formed.
- the vacuum-tight passages are formed from a ceramic material, wherein joints are metallized to grounded vacuum vessel.
- Such feedthroughs advantageously make it possible to insulate against the connection lines and at the same time to form a vacuum-tight connection, for example by means of a solder connection, to the grounded vacuum vessel.
- the insulating transmission element is formed of a ceramic material.
- a ceramic material advantageously provides the insulating properties for the transfer element.
- the ceramic material is Al 2 O 3 .
- Al 2 O 3 is particularly advantageous for the formation of vacuum-tight bushings.
- the vacuum-tight connection of drive device and transmission element is formed by a bellows.
- a bellows provides an easy way to form a connection for transmitting a movement of the drive device to the movable contact piece.
- Figure 1 shows a first embodiment of a vacuum-insulated switching device according to the invention
- Figure 2 shows a second embodiment of a vacuum-insulated switching device according to the invention
- FIG. 3 shows a further embodiment of a vacuum-insulated switching device according to the invention.
- Figure 4 shows another embodiment of a vacuum-insulated switching device according to the invention.
- FIG. 1 shows a vacuum-insulated switching device 1 with a grounded vacuum vessel 2, on which connection lines 3 and 4 are arranged.
- the connection lines 3 and 4 are by means of vacuum-tight bushings 5 and 6 at the grounded vacuum vessel 2 sealed in a vacuum-tight manner.
- a further vacuum vessel 7 is arranged, in which a fixed contact 8 and a movable contact 9 are arranged.
- the fixed contact 8 is conductively connected by means of a further vacuum-tight feedthrough 10 to the connecting line 3
- the moving contact 9 is connected by means of a likewise vacuum-tight feedthrough 11 in the form of a bellows 11 via a flexible conductor 12 to the connecting line 4.
- a drive movement is transmitted to the moving contact 9 via the insulating transmission element 15, so that the moving contact 9 between a Contact position, in the fixed contact 8 and moving contact 9 are in communication, and an open position in which fixed contact 8 and moving contact 9 are separated from each other, is movable.
- a vacuum monitoring device 16 for monitoring or maintaining the pressure in the grounded vacuum vessel 2 is arranged.
- the vacuum monitoring device 16 If a pressure rise in the grounded vacuum vessel is detected by the vacuum monitoring device 16, which may result, for example, from outgassing of the flexible conductor 12 or the walls of the grounded vacuum vessel 2, then the necessary pressure for the dielectric insulation is restored by an ion getter pump assigned to the vacuum monitoring device 16 as the pump device ,
- connection between the connecting lines 3 and 4 is caused by the drive device, the movable drive rod 13 to a movement in which the moving contact 9 is separated from the fixed contact 8.
- an arc is ignited in the further vacuum vessel 7, which is extinguished at a subsequent current zero crossing.
- the extinguishing of this arc is ensured by the vacuum formed in the further vacuum vessel 7, so that the vacuum-insulated switching device has a sufficient switching capacity.
- the hermetic separation of the further vacuum vessel 7 simultaneously prevents ions from the arc from reaching the region of the grounded vacuum vessel 2.
- the pressure in the grounded vacuum vessel 2 is in a range of ⁇ 10 -2 hPa and thus with corresponding housing dimensions in a range below the so-called Paschen minimum, which is about 1 Pa * m, and ensures sufficient dielectric isolation in a grounded vacuum vessel 2, wherein the pressure in the further vacuum vessel 7 in a range of ⁇ 10 "4 hPa.
- the other necessary functions for a switching device such as separation or grounding of the switching device can either be provided outside of the grounded vacuum vessel 2 by suitable mechanical arrangements, or be realized in the other vacuum vessel 7, wherein the further vacuum vessel 7 than Multi-position vacuum switching tube, as described, for example, in PCT / DE2005 / 001613. Ben, which is hereby part of the present disclosure is formed.
- FIG. 2 shows a further embodiment of a vacuum-insulated switching device 1 'with a grounded vacuum vessel 2, to which connection lines 3 and 4' are arranged via vacuum-tight passages 5 and 6 '.
- the moving contact 9 is coupled to an insulating transmission element 15 'in the form of a transmission rod 15', which is led out of the grounded vacuum vessel 2 via a vacuum-tight bellows 14 'and fitted with a rotatably mounted drive rod 13'.
- the vacuum monitoring device 16 is arranged.
- a closing or opening of the contact system of fixed contact 8 and moving contact 9 is performed by pivoting the transmission element 15 ', wherein when the contact system is closed, a connection between the connecting lines 3 and 4' on the contact system of fixed contact 8 and moving contact 9 and the flexible conductor 12 'is formed.
- the further vacuum vessel 7 serves to shield the arc occurring during the separation process of fixed contact 8 and moving contact 9 with respect to the grounded vacuum vessel 2 and the components arranged therein.
- Figure 3 shows a further embodiment of the vacuum-insulated switching device of Figure 2, wherein a further contact system is designed as a disconnect contact system of the switching device l r .
- FIG. 4 shows an embodiment of the vacuum-insulated switching device 1 ', in which a grounding function is additionally provided in the grounded vacuum vessel 2.
- the transmission element 15 'after opening the contact system of fixed contact 8 and moving contact 9 is moved so that the flexible conductor 12' forms a conductive connection 17 with the grounded vacuum vessel 2. In this position, a grounding of the switching device is formed.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
- Inorganic Insulating Materials (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Transformer Cooling (AREA)
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2005/001982 WO2007051436A1 (de) | 2005-11-02 | 2005-11-02 | Vakuumisoliertes schaltgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1952414A1 true EP1952414A1 (de) | 2008-08-06 |
| EP1952414B1 EP1952414B1 (de) | 2009-08-26 |
Family
ID=36588946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05810668A Expired - Lifetime EP1952414B1 (de) | 2005-11-02 | 2005-11-02 | Vakuumisoliertes schaltgerät |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080302765A1 (de) |
| EP (1) | EP1952414B1 (de) |
| CN (1) | CN101297386B (de) |
| AT (1) | ATE441197T1 (de) |
| DE (2) | DE112005003810A5 (de) |
| DK (1) | DK1952414T3 (de) |
| WO (1) | WO2007051436A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092621A1 (de) * | 2008-01-22 | 2009-07-30 | Siemens Aktiengesellschaft | Kurzschlussvorrichtung mit pyrotechnischer auslösung |
| EP2244275B1 (de) | 2009-04-23 | 2014-06-18 | Ormazabal Y Cia., S.L.U. | Schaltanlage für Stromverteilungsnetze |
| US9030280B2 (en) * | 2011-09-19 | 2015-05-12 | Mitsubishi Electric Corporation | Electromagnetically operated device and switching device including the same |
| CN103107044A (zh) * | 2011-11-10 | 2013-05-15 | 佘天白 | 伸缩腔体式真空开关 |
| GB2522696A (en) * | 2014-02-03 | 2015-08-05 | Gen Electric | Improvements in or relating to vacuum switching devices |
| DE102017206754A1 (de) * | 2017-04-21 | 2018-10-25 | Siemens Aktiengesellschaft | Schaltgeräteantriebsanordnung |
| DE102018201151A1 (de) * | 2018-01-25 | 2019-07-25 | Siemens Aktiengesellschaft | Elektrische Schalteinrichtung |
| DE102019202741A1 (de) * | 2019-02-28 | 2020-09-03 | Siemens Aktiengesellschaft | Vakuumschaltgerät für Mittel- und Hochspannungsanwendungen |
| CN110707586A (zh) * | 2019-11-22 | 2020-01-17 | 北京清畅电力技术股份有限公司 | 一种中压配电网络的sf6气体绝缘永磁断路器开关柜 |
| CN112053897B (zh) * | 2020-09-17 | 2022-10-04 | 安徽普众机电有限公司 | 一种分层型的高压真空开关管 |
| DE102022119447A1 (de) * | 2022-08-03 | 2024-02-08 | Schneider Electric Industries Sas | Leistungsschalter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778573A (en) * | 1972-06-23 | 1973-12-11 | Westinghouse Electric Corp | Vacuum circuit interrupter having improved contact structure |
| JP3788148B2 (ja) * | 1999-12-16 | 2006-06-21 | 株式会社日立製作所 | 真空スイッチ及びその運転方法 |
| JP2001307603A (ja) * | 2000-04-19 | 2001-11-02 | Hitachi Ltd | 真空スイッチ及びそれを用いた真空スイッチギヤ |
| TWI263236B (en) * | 2003-05-19 | 2006-10-01 | Hitachi Ltd | Vacuum switchgear |
-
2005
- 2005-11-02 AT AT05810668T patent/ATE441197T1/de not_active IP Right Cessation
- 2005-11-02 EP EP05810668A patent/EP1952414B1/de not_active Expired - Lifetime
- 2005-11-02 US US12/092,130 patent/US20080302765A1/en not_active Abandoned
- 2005-11-02 DE DE112005003810T patent/DE112005003810A5/de not_active Withdrawn
- 2005-11-02 CN CN2005800519690A patent/CN101297386B/zh not_active Expired - Fee Related
- 2005-11-02 WO PCT/DE2005/001982 patent/WO2007051436A1/de not_active Ceased
- 2005-11-02 DK DK05810668T patent/DK1952414T3/da active
- 2005-11-02 DE DE502005008020T patent/DE502005008020D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007051436A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080302765A1 (en) | 2008-12-11 |
| WO2007051436A1 (de) | 2007-05-10 |
| ATE441197T1 (de) | 2009-09-15 |
| EP1952414B1 (de) | 2009-08-26 |
| CN101297386B (zh) | 2011-04-13 |
| DK1952414T3 (da) | 2009-11-30 |
| CN101297386A (zh) | 2008-10-29 |
| DE112005003810A5 (de) | 2008-10-02 |
| DE502005008020D1 (de) | 2009-10-08 |
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