EP1716583A1 - Chambre de commutation a vide munie d'un blindage - Google Patents

Chambre de commutation a vide munie d'un blindage

Info

Publication number
EP1716583A1
EP1716583A1 EP05707323A EP05707323A EP1716583A1 EP 1716583 A1 EP1716583 A1 EP 1716583A1 EP 05707323 A EP05707323 A EP 05707323A EP 05707323 A EP05707323 A EP 05707323A EP 1716583 A1 EP1716583 A1 EP 1716583A1
Authority
EP
European Patent Office
Prior art keywords
vacuum interrupter
alloy
copper
shielding
screen
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.)
Withdrawn
Application number
EP05707323A
Other languages
German (de)
English (en)
Inventor
Dietmar Gentsch
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.)
ABB Technology AG
Original Assignee
ABB Technology 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 ABB Technology AG filed Critical ABB Technology AG
Publication of EP1716583A1 publication Critical patent/EP1716583A1/fr
Withdrawn legal-status Critical Current

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
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66269—Details relating to the materials used for screens in vacuum switches

Definitions

  • the invention relates to a vacuum interrupter with shielding, according to the preamble of patent claim 1.
  • the invention relates to vacuum interrupters for medium-voltage switching devices. It is known to equip vacuum interrupters with a burn-off-resistant screen for a large number of short-circuit current cutouts with a compact design.
  • the vacuum interrupters are used in low, medium and high voltage technology.
  • the said shields for vacuum interrupters are predominantly made of copper and / or stainless steel.
  • the compact design of the vacuum interrupter has a high thermal load on the shielding surrounding the switching system. The load results from the plasma radiation from the metal vapor arc and, in the case of a grinding arc, through direct contact with the shield.
  • the shielding surrounding the contact system is reinforced by the use of a copper-chrome cylinder tube section (composite material - copper-chrome). Shields made of the composite material CuCr with chromium concentrations greater than 15% by weight are known. Furthermore, for reasons of cost, efforts are being made to dispense with an additional screen made of CuCr.
  • Another method is plasma spraying, i.e. a thermal process for applying a copper chrome layer.
  • the plasma spraying is advantageously carried out in an inert gas atmosphere due to the strong gettering effect of the chromium.
  • an increased gas content in the sprayed-on layer is inevitable
  • MLC vacuum interrupter contact piece
  • the invention is therefore based on the object of increasing the number of possible short-circuit current switch-offs.
  • the object is achieved by a vacuum interrupter of the generic type according to the invention by the characterizing features of claim 1.
  • a ready-to-install screen made of a low-alloy copper material, e.g. Copper made with chrome and / or zircon.
  • the chromium concentration is in the range between> 0 and 5% by weight.
  • the screen is preferably made from a commercially available alloy CuCrZr (2.1293) with the composition Cr 0.8, Zr 0.08 and the rest copper.
  • the entire screen consists of a low-alloy and therefore erosion-resistant alloy, which consists of copper with a chromium and / or zicon addition between 0 and 10% by weight.
  • the screen consists of a CuCrZr alloy with the composition Cr 0.8 Zr 0.08 and the rest copper or a CuCrAgFeTiSi alloy.
  • the screen can subsequently be manufactured using a standard shaping process (e.g. deep drawing). This allows an additional operation, e.g. avoid the creation of an erosion-resistant and additional screen part or an additional coating of a component.
  • a standard shaping process e.g. deep drawing
  • the shielding of the vacuum interrupter chamber is made only in part from the alloy.
  • a screen coating is additionally provided in which further elements can be alloyed or contained in the copper, namely tungsten and / or molybdenum and / or platinum and / or zirconium and / or yttrium and / or palladium and / or silver.
  • the figure shows a screen part that surrounds a contact system.
  • the shield component 10 can, as shown, be part of a shield or as

Landscapes

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

Abstract

L'invention concerne une chambre de commutation à vide munie d'un blindage pour installations moyenne tension, selon le préambule de la revendication 1 de l'invention. L'invention vise à augmenter le nombre de déclenchements de courant de court-circuit possibles. A cet effet, il est prévu que le blindage total se compose d'un alliage faiblement allié et par conséquent peu sensible aux pertes d'éléments d'alliage, qui comprend du cuivre avec une adjonction de l'ordre de 0,01 à 10 % en poids de chrome et/ou de zirconium ou du cuivre avec une adjonction de l'ordre de 0,1 à 0,5 % en poids de chrome et/ou d'argent.
EP05707323A 2004-02-11 2005-02-11 Chambre de commutation a vide munie d'un blindage Withdrawn EP1716583A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410006609 DE102004006609B4 (de) 2004-02-11 2004-02-11 Vakuumschalter mit Schirmung
PCT/EP2005/001366 WO2005078755A1 (fr) 2004-02-11 2005-02-11 Chambre de commutation a vide munie d'un blindage

Publications (1)

Publication Number Publication Date
EP1716583A1 true EP1716583A1 (fr) 2006-11-02

Family

ID=34853422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707323A Withdrawn EP1716583A1 (fr) 2004-02-11 2005-02-11 Chambre de commutation a vide munie d'un blindage

Country Status (4)

Country Link
EP (1) EP1716583A1 (fr)
CN (1) CN1918683B (fr)
DE (1) DE102004006609B4 (fr)
WO (1) WO2005078755A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101052746B (zh) 2004-09-25 2010-04-14 Abb技术股份公司 用于制造耐烧蚀的涂层以及用于真空开关箱的相应屏蔽件
DE102004061497A1 (de) * 2004-12-15 2006-07-06 Siemens Ag Aus einer schmelzmetallurgisch hergestellten Kupferchromlegierung bestehendes Schirmsystem
DE102005043484B4 (de) 2005-09-13 2007-09-20 Abb Technology Ag Vakuumschaltkammer
EP2469562A1 (fr) 2010-12-22 2012-06-27 ABB Technology AG Ensemble d'insertion pour un interrupteur de circuit
US9368301B2 (en) * 2014-01-20 2016-06-14 Eaton Corporation Vacuum interrupter with arc-resistant center shield
CN114367665B (zh) * 2021-12-14 2024-03-29 西安理工大学 一种CuW合金与CuCrZr合金的连接方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316102A (en) * 1969-08-08 1973-05-09 Ass Elect Ind Vacuum switches
US4553007A (en) * 1983-09-30 1985-11-12 Westinghouse Electric Corp. Arc resistant vapor condensing shield for vacuum-type circuit interrupter
DE3415054A1 (de) * 1984-04-21 1985-10-24 Berkenhoff GmbH, 6301 Heuchelheim Drahtelektrode fuer funkenerodieranlagen
DE19625737B4 (de) * 1995-07-25 2007-05-03 Abb Patent Gmbh Vakuumschaltkammer
FR2745118B1 (fr) * 1996-02-16 1998-04-03 Schneider Electric Sa Interrupteur ou disjoncteur a vide
DE19714654A1 (de) * 1997-04-09 1998-10-15 Abb Patent Gmbh Vakuumschaltkammer mit einem festen und einem beweglichen Kontaktstück und/oder einem Schirm von denen wenigstens die Kontaktstücke wenigstens teilweise aus Cu/Cr, Cu/CrX oder Cu/CrXY bestehen
DE19747242C2 (de) * 1997-10-25 2002-02-21 Abb Patent Gmbh Verfahren zur Herstellung einer Blechform für Vakuumkammerschirme oder Vakuumkammerkontaktstücke
JPH11260209A (ja) * 1998-03-05 1999-09-24 Shibafu Engineering Kk 遮断器用構成部材
DE10137976A1 (de) * 2001-08-08 2002-11-21 Leoni Draht Gmbh & Co Kg Litze, insbesondere für eine Sitzheizung für ein Kraftfahrzeug, und Verfahren zum Einstellen gewünschter elektrischer Eigenschaften einer Litze

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2005078755A1 *

Also Published As

Publication number Publication date
DE102004006609A1 (de) 2005-09-15
DE102004006609B4 (de) 2006-03-16
CN1918683B (zh) 2013-12-18
WO2005078755A1 (fr) 2005-08-25
CN1918683A (zh) 2007-02-21

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