EP1925007A1 - Tube commutateur a vide - Google Patents

Tube commutateur a vide

Info

Publication number
EP1925007A1
EP1925007A1 EP05780624A EP05780624A EP1925007A1 EP 1925007 A1 EP1925007 A1 EP 1925007A1 EP 05780624 A EP05780624 A EP 05780624A EP 05780624 A EP05780624 A EP 05780624A EP 1925007 A1 EP1925007 A1 EP 1925007A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact piece
vacuum
vacuum interrupter
piece
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
Application number
EP05780624A
Other languages
German (de)
English (en)
Other versions
EP1925007B1 (fr
Inventor
Nils Anger
Roman Renz
Ulf SCHÜMANN
Andreas Stelzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1925007A1 publication Critical patent/EP1925007A1/fr
Application granted granted Critical
Publication of EP1925007B1 publication Critical patent/EP1925007B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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

Definitions

  • the invention relates to a vacuum interrupter with a housing, a first contact system, which comprises a movable contact piece and a fixed contact piece, and a second contact system of a ground contact and a grounded counter contact piece, wherein the ground contact is arranged on a movable, sealing led out of the housing contact rod ,
  • Such a vacuum interrupter is known from DE 100 30 670 C2.
  • the described vacuum interrupter comprises a first contact system with a fixed contact piece and a movable contact piece, which is connected to a power supply pin as a movable contact rod.
  • the interior of the housing of the vacuum interrupter is vacuum-tightly sealed to the power supply bolt by means of a bellows against the environment.
  • the first contact system is used to switch or disconnect an electrical connection.
  • a contact carrier with a movable contact as a grounding contact of a second contact system wherein the grounding contact with a fixed contact serves as a mating contact piece for grounding the vacuum interrupter.
  • the mating contact piece is guided by means of a thick-walled pipe section with a radial connection flange to the outside.
  • a resulting during the separation process arc is plasma-physically shielded by a labyrinth-like shielding of the mating contact piece.
  • ions of the arc can be attracted to the ground potential of the mating contact piece, which leads to a polarity-dependent switching capacity of the vacuum interrupter.
  • Object of the present invention is to provide a vacuum interrupter of the type mentioned, in which an interaction of the arc is prevented with the earthed counter-contact piece.
  • this object is achieved in that the first contact system is held in the interior of the housing to vacuum-tight separating means which divide the interior of the vacuum interrupter into a first interior with the first contact system and a second interior with the second contact system.
  • the separating means comprise a partition plate held on the housing with a vacuum-tight passage.
  • This partition plate is preferably electrically conductive and provides a simple way to divide the interior of the housing of the vacuum interrupter into two mutually vacuum tight sealed interior spaces.
  • the movable contact rod extends through the partition plate and is connected in the first interior with the movable contact piece of the first contact system and a bellows forms on the partition plate, the vacuum-tight implementation.
  • the bellows is advantageously formed a vacuum-tight passage for the movable contact rod, by which a movement of the movable contact rod is made possible to move the arranged on the movable contact rod contacts between different positions.
  • the vacuum-tight passage is formed by a vacuum-tight recessed in the partition contact piece of the fixed contact piece of the first contact system and the movable contact rod forms with its inner end of the movable contact piece of a third contact system whose fixed contact piece is the contact piece.
  • the movable contact piece of the first contact system is attached to a further movable contact rod, which extends vacuum-tight in the first interior. Due to the arrangement of the other movable contact rod, the functions power interruption or switching and separation are independently executable independently, resulting in a more compact construction of the vacuum interrupter, since the current interruption and extinction of the arc, a small distance between the movable and the fixed contact piece is sufficient whereas dielectric separation requires greater spacing between the contacts.
  • a bellows forms the vacuum-tight implementation of the further movable contact rod.
  • a bellows is an advantageous means for forming a vacuum-tight passage for the movable contact rod.
  • the fixed contact piece and the movable contact piece are each formed from a copper-chromium material.
  • a copper-chromium material advantageously has a high switching capacity with simultaneous switch-on and generates only small overvoltages.
  • the fixed contact piece and the movable contact piece are each formed from a tungsten carbide silver material with a silver content between 20 and 50%. Such a material is also suitable for the formation of the first contact system.
  • the grounding contact and the mating contact piece are each formed from copper. Copper is a good electrically conductive material and therefore offers advantageous properties for the second contact system as a grounding contact system.
  • the grounding contact and the mating contact piece are each formed from a copper-chromium material. Such a material has the advantages already described above and can therefore also be used for the second contact system.
  • the contacts of the third contact system are formed of copper. Copper with the properties already described above is a suitable material for the third contact system.
  • contacts of the third contact system are formed of a copper-chromium material.
  • a copper-chromium material can be used advantageously for, the third contact system.
  • FIG. 1 shows a first embodiment of a vacuum interrupter according to the invention
  • FIG. 2 shows a second embodiment of a vacuum interrupter according to the invention.
  • Figure 1 shows a vacuum interrupter 1 with a housing 2, which comprises a housing plate 3 with a passage 4, a further housing plate 5 and insulators 6, 7 and 8. Between the insulators 6 and 7 of the housing 2, an electrically conductive partition plate 9 is arranged, which has a variable having a vacuum-tight passage 10. Between the insulators 7 and 8 of the housing 2, a mating contact piece 11 is arranged, which is provided with an opening 12 and which has a larger outer diameter than the insulators 7 and 8, so that a flange-like portion 13 on the vacuum interrupter 1 from the outside for grounding of the mating contact piece 11 is accessible.
  • a movable contact rod 14 which is conductively connected to a power supply, not shown, and an actuator extends through the passage 4 of the housing plate 3.
  • a bellows 15 is disposed on the housing plate 3 and the movable contact rod 14 so that the movable contact rod 14 from an interior of the vacuum interrupter is led out vacuum-tight.
  • the movable contact rod 14 extends through the opening 12 of the mating contact piece 11, wherein the opening 12 has a significantly larger diameter than the outer diameter of the movable contact rod 14.
  • the movable contact rod 14 further extends through the vacuum-tight passage 10 of the partition plate 9 and is connected at one end 17 to a movable contact piece 19, wherein a bellows 18 on the partition plate 9 and the movable contact piece 19 serves as a vacuum-tight passage, so that a vacuum-tight division of the interior of the vacuum interrupter is formed in a first inner space 20 and a second inner space 21.
  • the movable contact piece 19 is arranged opposite in the second interior, a fixed contact piece 22 which is fixedly connected to the other housing plate 5.
  • the contact pieces 19 and 22 may be either Radialmagnetfeldête or Axialmagnetfeld briefly implemented, which with contact discs 23 and 24 for Improvement of the contact and erase properties of the first contact system are provided.
  • Arranged by A or B are arrows which characterize the direction of movement of the movable contact rod 14.
  • Shields 25, 26, 27, 28, 29, 30 on the housing plate 3, on opposite sides of the mating contact 11, 28 and 29 on opposite sides of the partition plate 9 on the other housing plate 5 are for shielding the insulators 6, 7 and 8 against a Steaming and potential control provided.
  • the vacuum interrupter 1 has three different possible positions, which can be assumed by movement of the movable contact rod 14 along the direction of movement indicated by the arrows A and B, respectively.
  • the position shown in Figure 1 corresponds to a disconnected position of the vacuum interrupter 1.
  • the movable contact piece 19 and the fixed contact piece 22 are spatially separated from each other and are not in a conductive connection. Between the ground contact 16 and the mating contact 11 is also in this position no conductive connection. If the movable contact rod 14 is moved in the direction of the arrow B via a drive mechanism, not shown, then the switching position of the vacuum interrupter 1 is assumed, in which the movable contact piece 19 and the fixed contact piece 22 are in a conductive connection. The vacuum interrupter 1 is in its switched position.
  • the movable contact rod 14 is moved away from the fixed contact piece 22 in the direction of the arrow A via the drive mechanism, then the position of FIG. 1 is again adopted, which corresponds to the disconnected position, and if the movement continues in this direction, finally the grounding position is established the vacuum interrupter 1 occupied, in which the grounding contact 16 forms a conductive connection with the mating contact 11.
  • the transfer between the individual Positions of the vacuum interrupter 1 is made possible by the flexibility of the bellows 15 and 18, which ensure the vacuum tightness of the first inner space 20 and the second inner space 21 during the movement of the movable contact rod 14.
  • FIG. 2 shows a further exemplary embodiment of a vacuum interrupter 1 'according to the invention.
  • a fixed contact piece 31 in the electrically conductive partition plate 9 is arranged so that a contact piece 33 of the fixed contact piece 31 is embedded in the partition plate 9, which forms the vacuum-tight passage 10 and extends into the second inner space 21.
  • a movable contact rod 32 extends through the passage 4 of the housing plate 3 in the second inner space 21, which is sealed by means of the bellows 15 to the outside vacuum-tight.
  • the movable contact rod 32 extends through the opening 12 of the mating contact piece 11 and has a grounding contact 16 on the side of the mating contact piece 11 opposite the bellows.
  • a movable contact piece 34 is fixedly arranged on a further movable contact rod 35, which extends through a passage 37 in the housing plate 36 from the first inner space 20 to the outside.
  • the contact rod 35 is connected to a power supply, not shown figuratively.
  • a bellows 38 is disposed on the housing plate 36 and the movable contact rod 35 for vacuum-tight separation of the first inner space 20 from the environment.
  • the movable contact piece 34 and the fixed contact piece 31, which form the first contact system, are provided with contact discs 23, 24. Shields 25 to 30 are on the respective housing plates, the partition plate and the mating contact arranged.
  • a switching position of the vacuum interrupter 1 ' is achieved in this arrangement, that on the one hand via a drive, not shown, the movable contact rod 35 is moved with the movable contact piece 34 in the direction of the movement arrow C, so that the movable contact piece 34 and the fixed contact piece 31 a forming conductive connection, and the movable contact rod 32 is moved in the direction of the moving part A upwards, so that the contact piece 33 of the fixed contact piece 31 and the end of the movable contact rod 32 also form a conductive connection.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un tube commutateur à vide (1, 1') présentant un corps (2), un premier système de contact (19, 22, 31, 34), pourvu d'une pièce de contact mobile (19, 34) et d'une pièce de contact fixe (22, 31), ainsi qu'un second système de contact (11, 16) constitué d'un contact de mise à la terre (16) et d'une pièce de contact complémentaire mise à la terre (11), le contact de mise à la terre (16) étant placé sur une tige de contact mobile (14) sortant du corps (2) de manière étanche. L'objectif de cette invention est d'éviter toute interaction entre l'arc électrique et le contact complémentaire mis à la terre. A cet effet, le premier système de contact est maintenu à l'intérieur du boîtier contre des moyens de séparation (9, 18, 33) étanches au vide, qui divisent l'espace intérieur (20, 21) du tube commutateur à vide (1, 1') en un premier espace intérieur (20) pourvu du premier système de contact (19, 22, 31, 34) et un second espace intérieur (21) pourvu du second système de contact (11, 16).
EP05780624.2A 2005-09-12 2005-09-12 Tube commutateur a vide Active EP1925007B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/001613 WO2007031040A1 (fr) 2005-09-12 2005-09-12 Tube commutateur a vide

Publications (2)

Publication Number Publication Date
EP1925007A1 true EP1925007A1 (fr) 2008-05-28
EP1925007B1 EP1925007B1 (fr) 2018-10-31

Family

ID=36168627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05780624.2A Active EP1925007B1 (fr) 2005-09-12 2005-09-12 Tube commutateur a vide

Country Status (5)

Country Link
US (1) US20080245772A1 (fr)
EP (1) EP1925007B1 (fr)
JP (1) JP2009508294A (fr)
DE (1) DE112005003757A5 (fr)
WO (1) WO2007031040A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7724489B2 (en) 2007-08-18 2010-05-25 Ema Electromecanica S.A. Circuit breaker with high speed mechanically-interlocked grounding switch
DE102008023502B4 (de) * 2008-05-13 2010-06-17 Siemens Aktiengesellschaft Vakuumschaltröhre
EP2244275B1 (fr) 2009-04-23 2014-06-18 Ormazabal Y Cia., S.L.U. Appareils de coupure pour réseau de distribution électrique
GB2479524A (en) * 2010-03-31 2011-10-19 Brush Transformers Ltd Vacuum interrupter with earth terminal
DE102010024386B4 (de) * 2010-06-15 2012-06-06 Siemens Aktiengesellschaft Übertragungselement zur Übertragung von Antriebsbewegungen auf einen Bewegkontaktanschlussbolzen eines Schaltgeräts
DE102010045901B4 (de) * 2010-09-17 2012-12-27 Maschinenfabrik Reinhausen Gmbh Stufenschalter und Vakuumschaltröhre für einen solchen Stufenschalter
DE102010053466A1 (de) * 2010-11-30 2012-05-31 Maschinenfabrik Reinhausen Gmbh Stufenschalter und Vakuumschaltröhre für einen solchen Stufenschalter
JP5380467B2 (ja) 2011-01-06 2014-01-08 株式会社日立製作所 開閉器ユニット及びスイッチギヤ
US8445805B2 (en) * 2011-01-07 2013-05-21 Michael David Glaser Vacuum switch with pre-insertion contact
DE102011008959B9 (de) * 2011-01-19 2012-04-26 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Vakuumschaltröhren
US8471166B1 (en) 2011-01-24 2013-06-25 Michael David Glaser Double break vacuum interrupter
BR112013022214A2 (pt) * 2011-04-02 2017-05-23 Reinhausen Maschf Scheubeck comutador de derivação com tubos de comutação a vácuo para comutação ininterrupta entre derivações de bobinagem de um transformador abaixador e tubo de comutação a vácuo para um comutador de derivação
US10170255B1 (en) 2018-06-26 2019-01-01 Michael D. Glaser Vacuum capacitor switch with pre-insertion contact

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL154369B (nl) * 1973-12-21 1977-08-15 Hazemeijer Bv Elektrische hoogspanningsschakelaar met twee in serie geschakelde schakeltrajecten.
DE4445172C2 (de) * 1994-12-17 1998-07-16 Abb Patent Gmbh Schaltfeld
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
DE10030670C2 (de) * 2000-06-23 2002-06-13 Siemens Ag Vakuumschaltröhre mit zwei Kontaktsystemen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007031040A1 *

Also Published As

Publication number Publication date
DE112005003757A5 (de) 2008-08-14
US20080245772A1 (en) 2008-10-09
EP1925007B1 (fr) 2018-10-31
JP2009508294A (ja) 2009-02-26
WO2007031040A1 (fr) 2007-03-22

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