WO2005062329A1 - Commutateur de moyenne/haute tension - Google Patents

Commutateur de moyenne/haute tension Download PDF

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Publication number
WO2005062329A1
WO2005062329A1 PCT/EP2004/014502 EP2004014502W WO2005062329A1 WO 2005062329 A1 WO2005062329 A1 WO 2005062329A1 EP 2004014502 W EP2004014502 W EP 2004014502W WO 2005062329 A1 WO2005062329 A1 WO 2005062329A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact system
vacuum interrupter
medium
high voltage
electrode
Prior art date
Application number
PCT/EP2004/014502
Other languages
German (de)
English (en)
Inventor
Dietmar Gentsch
Christof Humpert
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 WO2005062329A1 publication Critical patent/WO2005062329A1/fr

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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H01H1/0206—Contacts characterised by the material thereof specially adapted for vacuum switches containing as major components Cu and Cr
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/185—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Definitions

  • the present invention relates to a medium or high voltage switch according to the preamble of claim 1.
  • the invention relates to medium and high voltage switches, in particular circuit breakers with vacuum interrupters.
  • RMF systems so-called radial field magnet systems
  • the radial magnetic field is generated by slots in the contact or by a slotted contact head.
  • AMF axial field magnet systems
  • An axial magnetic field can be found in the area of the contact gap - e.g. by a coil located behind the contact piece or by ferromagnetic deposits.
  • Another option for generating an axial field in AMF axial magnetic field contact systems can be achieved by using permanent magnets. With this arrangement, the compact design of the vacuum interrupter allows high rated currents to be carried and high short-circuit currents to be switched off.
  • BESTATIGUNGSKOPIE The invention has for its object to keep the current path resistance of the vacuum switch at a low level and to strive for an inexpensive solution.
  • the essence of the invention is to only ever use one contact system in such a switch, such that only one contact system is opposed to one contact piece. That either an AMF or an RMF contact system.
  • the fixed electrode which is opposite the contact system, is melted onto a metal carrier using a multilayer method.
  • the contact system is an AMF contact system. It is only important in the sense of the invention that only one contact system is used in each case.
  • the metal support is shielded.
  • the contact piece carrier is cup-shaped and ferromagnetic inserts are introduced into it.
  • NeFeB or FeNiCo is used as the magnetic material.
  • the essence of the invention is that only one contact system is formed such that a contact piece or an electrode is opposed either only by a radial magnetic field contact system RMF or only by an axial magnetic field contact system AMF, and the counter electrode according to the multilayer or multilayer method (MLC). is melted onto a metal support.
  • RMF radial magnetic field contact system
  • AMF axial magnetic field contact system
  • MLC multilayer or multilayer method
  • An advantageous embodiment of the method is concerned with the manufacture and introduction of the center shield into the vacuum interrupter, in which a center shield is introduced which consists of two parts which are arranged one inside the other in such a way that a gap is formed between the two, which is involved in a melting process a wear-resistant contact material is filled.
  • CuCr as a fire-resistant material is also particularly advantageous here.
  • the invention is illustrated in the drawing and described as follows using exemplary embodiments.
  • the figure shows a contact arrangement according to the inventive concept with shielding in a vacuum interrupter.
  • AMF or RMF (1) is used as an inexpensive solution.
  • the counter electrode can be designed as a flat contact piece (2) and made of a melted MLC material. This enables corresponding cost-effective variants of the shielding (3).
  • the production is new and the structural features achieved.
  • the shield is soldered to one of the pot shapes to form a finished assembly.
  • This finished assembly can then be inserted into the chamber in the direction of gravity and soldered to a finished chamber in the subsequent soldering step.
  • Powder material filled up and, if necessary, impregnated with pure Cu during the melting process similar to the so-called MLC process.
  • the melting of the contact material and the melting of the CuCr filling of the center shield can be carried out in one step.
  • the proposed method of producing shields is also conceivable for all other vacuum interrupters in which burn-off middle shields are used. If a contact system with ferromagnetic inserts is selected, ferromagnetic inserts are also necessary on the second electrode to close the magnetic circuit.
  • a technical solution is the use of ferromagnetic inserts (7), which are arranged from the outside, ie outside the vacuum interrupter, behind the second electrode in the cup-shaped contact piece carrier (8). The ferromagnetic inserts behind the second electrode can of course also be arranged within the vacuum interrupter.

Landscapes

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

Abstract

L'invention concerne une chambre d'interrupteur à vide de moyenne/haute tension, comportant au moins un système de configuration de contact qui comprend une électrode, fixe dans la plus large mesure, et une électrode mobile par rapport à la précédente, selon le préambule de la revendication 1. Afin de tendre à une solution la plus économique possible et de parvenir à maintenir la résistance du parcours du courant de la chambre d'interrupteur à vide à un niveau bas, il est prévu, selon l'invention, que dans le cas de la chambre d'interrupteur à vide, il n'y ait qu'un seul système de contact formé, de sorte que soit un seul système de contact de champ magnétique radial RMF, soit seul un système de contact de champ magnétique axial AMF soit opposé à une pièce de contact ou à une électrode.
PCT/EP2004/014502 2003-12-19 2004-12-20 Commutateur de moyenne/haute tension WO2005062329A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10360632.7 2003-12-19
DE10360632 2003-12-19

Publications (1)

Publication Number Publication Date
WO2005062329A1 true WO2005062329A1 (fr) 2005-07-07

Family

ID=34706435

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/014502 WO2005062329A1 (fr) 2003-12-19 2004-12-20 Commutateur de moyenne/haute tension

Country Status (1)

Country Link
WO (1) WO2005062329A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3056822A1 (fr) * 2016-09-28 2018-03-30 Schneider Electric Ind Sas Ampoule a vide pour appareil de connexion electrique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632928A (en) * 1969-03-20 1972-01-04 Westinghouse Electric Corp Contact structures for vacuum-type circuit interrupters
US3740507A (en) * 1970-10-02 1973-06-19 Siemens Ag Vacuum switch with magnetically controllable arc
US3852555A (en) * 1972-07-19 1974-12-03 Siemens Ag Vacuum switch
JPH07335091A (ja) * 1994-06-06 1995-12-22 Toshiba Corp 真空バルブ
DE19933111A1 (de) * 1999-07-15 2001-01-18 Abb Patent Gmbh Vakuumkammer und Verfahren zur Herstellung der Vakuumkammer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632928A (en) * 1969-03-20 1972-01-04 Westinghouse Electric Corp Contact structures for vacuum-type circuit interrupters
US3740507A (en) * 1970-10-02 1973-06-19 Siemens Ag Vacuum switch with magnetically controllable arc
US3852555A (en) * 1972-07-19 1974-12-03 Siemens Ag Vacuum switch
JPH07335091A (ja) * 1994-06-06 1995-12-22 Toshiba Corp 真空バルブ
DE19933111A1 (de) * 1999-07-15 2001-01-18 Abb Patent Gmbh Vakuumkammer und Verfahren zur Herstellung der Vakuumkammer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3056822A1 (fr) * 2016-09-28 2018-03-30 Schneider Electric Ind Sas Ampoule a vide pour appareil de connexion electrique

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