WO2005112060A1 - Chambre d'extinction d'arc pourvue de plaques d'extinction d'arc et procede de fabrication d'une plaque d'extinction d'arc pour une chambre de ce type - Google Patents

Chambre d'extinction d'arc pourvue de plaques d'extinction d'arc et procede de fabrication d'une plaque d'extinction d'arc pour une chambre de ce type Download PDF

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Publication number
WO2005112060A1
WO2005112060A1 PCT/EP2005/052177 EP2005052177W WO2005112060A1 WO 2005112060 A1 WO2005112060 A1 WO 2005112060A1 EP 2005052177 W EP2005052177 W EP 2005052177W WO 2005112060 A1 WO2005112060 A1 WO 2005112060A1
Authority
WO
WIPO (PCT)
Prior art keywords
metallic
quenching
polymer
arc
matrix
Prior art date
Application number
PCT/EP2005/052177
Other languages
German (de)
English (en)
Inventor
Wilfried Haas
Werner Hartmann
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2005112060A1 publication Critical patent/WO2005112060A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor

Definitions

  • the invention relates to a quenching chamber for switching devices with arc quenching plates, which have metallic and / or non-metallic materials.
  • the invention relates to a method for producing an extinguishing plate for such an extinguishing chamber.
  • the context of the present invention is the current interruption in energy distribution networks and associated arrangements: current-interrupting devices such as circuit breakers and circuit breakers usually work with a pair of contacts which interrupt the current flow by separation. However, the arc that occurs when the contact is disconnected under current flow prevents the power interruption until it goes out.
  • the arc voltage is increased with suitable measures to such an extent that the current flow through the switching device and downstream networks or systems is limited. Furthermore, the arc voltage is increased to such an extent that the voltage requirement of the arc is no longer covered by the network, which means an earlier one Deletion time is reached as corresponds to the natural current zero crossing in the network.
  • a further increase in the arc voltage is achieved according to the prior art in that the quenching plate stack is laterally limited and, if necessary, held by a suitable, non-conductive or only weakly conductive polymer (thermoset, thermoplastic, resin; possibly also fiber-reinforced).
  • a suitable, non-conductive or only weakly conductive polymer thermoset, thermoplastic, resin; possibly also fiber-reinforced.
  • quenching plates are formed as plates made of porous, electrically highly conductive magnetic material, the pores being filled with a polymer.
  • Such extinguishing plates are produced as a metal matrix, the pores being filled with a polymer.
  • Open-pore sintered materials made of magnetic material preferably made of steel for reasons of cost, are preferably used, which are made by liquid phase hot soaks or cold soaks with subsequent polymerization phase or hardening by cooling, e.g. B. when using thermoplastics, filled with the polymer.
  • the matrix is made of a solid metallic grid, while the filler is a mechanically far less stable polymer.
  • Metallic nets made of magnetic material, as well as cold-welded stacks of nets made from them and similar solutions also correspond to the inventive concept of such an open-pore metallic matrix.
  • Combinations of different metals with different properties, e.g. Copper in combination with iron or nickel can be used to optimize the overall system.
  • the polymer containing the hydrogen - similar to the problem solution described in US 2002/0134758 AI - is very close to the base points of the arc and therefore has the greatest influence on the arc voltage, but due to the metal matrix is bound mechanically much more firmly and is not lost through particle erosion or plate breakage.
  • polymers with a high hydrogen content can be used, which is otherwise not possible for mechanical reasons. This enables a particularly fast and high arc voltage build-up in a compact geometry, which has a particularly positive influence on the switching capacity, particularly at higher voltages.
  • FIG. 1 shows a quenching chamber according to the prior art with ferromagnetic quenching plates in a schematic sectional view
  • FIG. 2 shows a new version of a quenching chamber with a quenching plate package according to the invention
  • FIG. 3 shows a detail from FIG. 2 to illustrate a single quenching plate.
  • a contact system 1 which has a fixed contact 2 and a moving contact 3.
  • the Festkon ⁇ clock 2 is connected to a power supply. 4
  • an arc LB forms in the contact system.
  • An arc running rail 5 is present above the moving contact and leads to an arcing chamber.
  • the arc LB can commutate from the arc guide rail 5 and is formed as an arc LB '.
  • a magnetic field generally pushes it into a quenching chamber with a quenching plate stack 10, where it is extinguished.
  • the quenching plate packet 10 is held in an electrically insulated manner by plastic side walls 6.
  • the individual quenching plates 11a, ..., lln are arranged at a distance so that the arc can penetrate into the spaces.
  • the individual quenching plates 11a, ..., lln are formed from ferromagnetic material.
  • FIG. 2 shows a quenching chamber corresponding to FIG. 1, in which another quenching plate package 20 is present.
  • the quenching plate package 20 in turn consists of individual quenching plates 21a, ..., 21n.
  • the quenching plate is formed by a polymer-filled metal matrix quenching plate.
  • a metal matrix 22 in which pores with a polymer filling 23 are formed.
  • Open-pore sintered materials 22 made of magnetic material, the pores 23 of which are filled with a suitable polymer, can be used as the base material for the extinguishing plates 21.
  • Woven nets or perforated grids can also be used as the base material for the extinguishing plates 21a, 21b, ..., 21g.
  • the magnetic material is steel, to which other metals, such as copper, may have been added in combination with iron or nickel.
  • a matrix with a solid metallic grid is produced from the metallic material.
  • a polymer is filled into the metal matrix by liquid phase impregnation and the liquid polymer is then polymerized.
  • the impregnation can be a hot soak or a cold soak.
  • Polymers that have a high hydrogen content are used as polymers. Soaking is particularly easy, if a metallic mesh or a metallic perforated grid is already used as the metallic matrix.
  • a plurality of metallic nets or perforated grids can be designed in a suitable manner as the metallic matrix. The individual nets are joined together at the edges by cold welding.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

Selon l'état actuel de la technique, on utile des chambres à extinction d'arc classiques pourvues de tôles d'extinction d'arc qui possèdent des propriétés magnétiques. La présente invention concerne des plaques d'extinction d'arc (21a, 10 21b, ..., 21g) constituées d'une matière magnétique poreuse à bonne conductivité électrique, les pores étant emplis d'un polymère. Le procédé de fabrication desdites plaques d'extinction d'arc consiste à former en particulier, à partir de la matière métallique, une matrice à grille métallique solide, puis à introduire dans la matrice un polymère par imprégnation en phase liquide, avec durcissement ou polymérisation subséquents du polymère liquide.
PCT/EP2005/052177 2004-05-14 2005-05-12 Chambre d'extinction d'arc pourvue de plaques d'extinction d'arc et procede de fabrication d'une plaque d'extinction d'arc pour une chambre de ce type WO2005112060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410024094 DE102004024094B4 (de) 2004-05-14 2004-05-14 Löschkammer mit Lichtbogenlöschplatten und Verfahren zur Herstellung einer Lichtbogenlöschplatte für eine derartige Löschkammer
DE102004024094.9 2004-05-14

Publications (1)

Publication Number Publication Date
WO2005112060A1 true WO2005112060A1 (fr) 2005-11-24

Family

ID=34967788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/052177 WO2005112060A1 (fr) 2004-05-14 2005-05-12 Chambre d'extinction d'arc pourvue de plaques d'extinction d'arc et procede de fabrication d'une plaque d'extinction d'arc pour une chambre de ce type

Country Status (2)

Country Link
DE (1) DE102004024094B4 (fr)
WO (1) WO2005112060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087136A1 (fr) * 2007-01-18 2008-07-24 Siemens Aktiengesellschaft Elément d'extinction, système d'extinction, système d'extinction et de barrage ainsi que dispositif de commutation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694940A1 (fr) * 1994-03-10 1996-01-31 Mitsubishi Denki Kabushiki Kaisha Commutateur et matériau d'amorçage d'arc pour l'utilisation là-dedans
US6242707B1 (en) * 1999-08-31 2001-06-05 General Electric Company Arc quenching current limiting device including ablative material
US20020134758A1 (en) * 2001-02-06 2002-09-26 General Electric Company Arc splitter plate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29806267U1 (de) * 1998-04-06 1998-09-17 Vari, Laszlo, Dipl.-Ing., 63762 Großostheim Kompaktes Druckausdehnungsgefäß für die Reduzierung der Schalthäufigkeit von Druckerhöhungspumpen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694940A1 (fr) * 1994-03-10 1996-01-31 Mitsubishi Denki Kabushiki Kaisha Commutateur et matériau d'amorçage d'arc pour l'utilisation là-dedans
EP0694940B1 (fr) * 1994-03-10 1999-06-16 Mitsubishi Denki Kabushiki Kaisha Commutateur et matériau d'amorçage d'arc pour l'utilisation là-dedans
US6242707B1 (en) * 1999-08-31 2001-06-05 General Electric Company Arc quenching current limiting device including ablative material
US20020134758A1 (en) * 2001-02-06 2002-09-26 General Electric Company Arc splitter plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087136A1 (fr) * 2007-01-18 2008-07-24 Siemens Aktiengesellschaft Elément d'extinction, système d'extinction, système d'extinction et de barrage ainsi que dispositif de commutation
US8809721B2 (en) 2007-01-18 2014-08-19 Siemens Aktiengesellschaft Quenching element, quenching unit, quenching and plugging unit, and switching device

Also Published As

Publication number Publication date
DE102004024094B4 (de) 2006-04-13
DE102004024094A1 (de) 2005-12-08

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