EP1554739B1 - Disjoncteur basse tension - Google Patents

Disjoncteur basse tension Download PDF

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Publication number
EP1554739B1
EP1554739B1 EP03753268A EP03753268A EP1554739B1 EP 1554739 B1 EP1554739 B1 EP 1554739B1 EP 03753268 A EP03753268 A EP 03753268A EP 03753268 A EP03753268 A EP 03753268A EP 1554739 B1 EP1554739 B1 EP 1554739B1
Authority
EP
European Patent Office
Prior art keywords
arc
voltage circuit
circuit breaker
low
transfer element
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.)
Expired - Lifetime
Application number
EP03753268A
Other languages
German (de)
English (en)
Other versions
EP1554739A1 (fr
Inventor
Sezai TÜRKMEN
Jörg-Uwe DAHL
Detlev Schmidt
Günter Seidler
Hans-Joachim Kuhrt
Ingo Thiede
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1554739A1 publication Critical patent/EP1554739A1/fr
Application granted granted Critical
Publication of EP1554739B1 publication Critical patent/EP1554739B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Definitions

  • the invention relates to a low-voltage circuit breaker, comprising a main current contact arrangement and an arc-extinguishing chamber, wherein an arc-transfer element is arranged between the main-current contact arrangement and the arc-extinguishing chamber.
  • the invention has for its object to ensure the transfer of the arc in the central region of the arc-quenching chamber.
  • an arc transfer element between the main current contact arrangement and the arc quenching chamber comprises at least one arc guide element that has several running edges, in particular at different angles to a center line of the arc transfer element extending in the direction of an upper side of the arc quenching chamber extend from an edge region towards a central region of the arc transfer element, and in that the arc guide element is crown-shaped and a plurality of radially formed to the center line Has pointed, regardless of the origin of the arc is advantageously achieved to lead the arc away from the burn before to be protected main power contacts away in the central region of the arc-quenching chamber and to achieve a shortening of the arc extinguishing time.
  • the running edges extend substantially parallel to the arc transfer element. - This allows an optimal arc position can be controlled defined within the arc-quenching chamber. -
  • the running edges can each be formed by a sharp transition of a step.
  • the arc guide element is non-positively connected to the arc transfer element.
  • the configuration of the arc guide element is possible by simple measures. For this purpose, only a constructive simple production of the arc guide element - for example as a stamped part - and the attachment of this arc guide element to the arc-transfer element - for example by welding - required.
  • the radial peaks of the stamped part the running edges for the arc are set in a simple manner. In particular, adjustments to different arc extinguishing chamber sizes are thus possible in a simple manner.
  • the radial prongs preferably have two mutually running running edges for the arc, which extend from the edge region of the arc-transfer element in the center of the arc-quenching chamber.
  • the non-positively connected with the arc-transfer element arc-guiding element also has the advantage that an enlarged heat sink in the region of the arc transfer element is available, which favorably influences the extinguishing behavior of the arc-quenching chamber.
  • At least a section of a wire in particular a steel wire, can also serve as arc guide element.
  • the at least one arc guide element is designed as a profile part stamped out of the plane of the arc transfer element.
  • Figure 1 shows in a partial sectional view of an arc-quenching chamber 10 of a low-voltage circuit breaker 12.
  • the low-voltage circuit breaker 12 is designed for a relatively high rated current, for example, 1000 A.
  • a main current contact arrangement 14 of the low-voltage circuit breaker 12 comprises a stationary main contact 16 with a contact piece support 18 and a movable main contact 20 with a contact piece support 22. These main contacts 16 and 20 are in multiple arrangement in a parallel arrangement if necessary. The larger the rated current, the wider - as shown in the paper plane - the main current contact arrangement is formed.
  • the main contacts 16 and 20 are used for arc-free guidance of the continuous current of the low-voltage circuit breaker 12 in the closed state of the main contacts 16 and 20th
  • the main power contact assembly 14 further includes a stationary burn off contact 24 with a contact piece support 26 and a movable Abbrennkar 28 with a contact piece support 30.
  • the Abbrenntakingen 24 and 28 arc horns 32 and 34 are assigned.
  • An insulating coupling 36 serves to connect to a drive device, not shown, and return device for opening and closing the main current contact arrangement 14.
  • the arc quenching chamber 10 includes a housing 38 enclosing an arc-extinguishing interior space 40.
  • a quenching plate 41 consisting of quenching plates 42, 43 is arranged in a known manner.
  • the interior space 40 is bounded on its fixed contact side by an arc transfer element 44.
  • the arc-transfer element 44 is formed substantially plate-shaped and carries on its interior 40 side facing an arc guide element 46, the structure of which will be explained in more detail with reference to the following figures.
  • the formed during the deletion arc gases (switching gases) leave the arc-quenching chamber 10 through a provided at the top, divided by webs 48 outlet opening 50 in the direction of the arrows 52.
  • At the top of the arc-quenching chamber 10 may additionally be a switching gas damper be arranged.
  • the arc guide element 46 is arranged on the arc guide element 44 in the region of the arc transfer points of the arc horn 32.
  • FIG. 2 shows the arc guide element 44 in plan view, the arrangement of the arc guide element 46 on the arc guide element 44 becoming clear.
  • the arc guide element 46 is frictionally arranged as an additional part on the arc guide element 44, for example by spot welding or the like. According to a further embodiment, the arc guide element 46 be stamped out of the plane of the arc guide member 44.
  • the arc guiding element 46 comprises running edges 54, which form the lateral boundary of radial prongs 56.
  • the running edges 54 in this case each extend at different angles to an imaginary vertical 58 through the arc guide element 44.
  • the running edges 54 are aligned such that they extend from a lower edge region in the direction of an upper middle region of the arc guide element 44.
  • the running edges 54 are formed by steps 60 extending substantially perpendicular to the plane of the arc guiding element 44, so that a sharp-edged transition 62 on the surface of the arc guiding elements 46 results.
  • Figure 5 illustrates in a perspective view again the plastic protrusion of the arc guide element 46 on the arc guide member 44. This results in the formation of the running edges 54 in the form of the sharp-edged transitions 62 of the steps 60th
  • the number of arc-guiding elements 46 and the number of running edges 54 may be adapted to the structural design of the low-voltage circuit breaker 12, in particular to the arc-extinguishing chamber 10.
  • each of the two end plates 43 of the splitter stack 41 may be used and thereby provided with an arc guide element.
  • not shown embodiments may also be provided instead of the illustrated, crown-shaped or serrated arc-guide element 46, that the running edges 54 are formed of welded individual elements, such as steel wire or the like.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (8)

  1. Disjoncteur basse tension comprenant un agencement de contacts de courant principal (14) et une chambre d'extinction d'arc électrique (10), dans lequel
    - un élément de transfert d'arc électrique (44) est disposé entre l'agencement de contacts de courant principal et la chambre d'extinction d'arc électrique,
    - l'élément de transfert d'arc électrique (44) comprend, pour le transfert défini de l'arc électrique dans la chambre d'extinction d'arc électrique (10), au moins un élément de guidage d'arc électrique (46) présentant plusieurs arêtes de cheminement (54) qui s'étendent notamment sous des angles différents par rapport à une ligne centrale ou médiane (58) de l'élément de transfert d'arc électrique (44), cette ligne centrale s'étendant en direction d'un côté supérieur de la chambre d'extinction d'arc électrique,
    - et les arêtes de cheminement (54) s'étendent à partir d'une zone de bordure en direction d'une zone centrale de l'élément de transfert d'arc électrique (44),
    caractérisé en ce que l'élément de guidage d'arc électrique (46) est réalisé en forme de couronne et présente plusieurs dents en pointe (56) formées à la manière de rayons par rapport à la ligne centrale (58).
  2. Disjoncteur basse tension selon la revendication 1,
    caractérisé en ce que les arêtes de cheminement (54) s'étendent sensiblement de manière parallèle à l'élément de transfert d'arc électrique (44).
  3. Disjoncteur basse tension selon l'une des revendications précédentes,
    caractérisé en ce que les arêtes de cheminement (54) sont formées chacune par une bordure de raccordement à arête vive (62) d'un gradin (60).
  4. Disjoncteur basse tension selon l'une des revendications précédentes,
    caractérisé en ce que l'élément de guidage d'arc électrique (46) est relié par coopération de force avec l'élément de transfert d'arc électrique (44).
  5. Disjoncteur basse tension selon la revendication 4,
    caractérisé en ce que l'élément de guidage d'arc électrique (46) est réalisé en tant que pièce de découpage par matriçage.
  6. Disjoncteur basse tension selon la revendication 4,
    caractérisé en ce que l'élément de guidage d'arc électrique (46) est formé par au moins un tronçon d'un fil, notamment un fil d'acier.
  7. Disjoncteur basse tension selon l'une des revendications précédentes,
    caractérisé en ce que ledit au moins un élément de guidage d'arc électrique (46) est réalisé en tant que pièce de profil obtenue par estampage hors du plan de l'élément de transfert d'arc électrique (44).
  8. Disjoncteur basse tension selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins une tôle d'extinction (42) ou une tôle d'extrémité (43) d'un empilement (41) de tôles d'extinction, sert d'élément de transfert d'arc électrique.
EP03753268A 2002-10-25 2003-08-28 Disjoncteur basse tension Expired - Lifetime EP1554739B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10250950A DE10250950B4 (de) 2002-10-25 2002-10-25 Niederspannungs-Leistungsschalter
DE10250950 2002-10-25
PCT/DE2003/002883 WO2004040608A1 (fr) 2002-10-25 2003-08-28 Disjoncteur basse tension

Publications (2)

Publication Number Publication Date
EP1554739A1 EP1554739A1 (fr) 2005-07-20
EP1554739B1 true EP1554739B1 (fr) 2006-07-26

Family

ID=32103242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03753268A Expired - Lifetime EP1554739B1 (fr) 2002-10-25 2003-08-28 Disjoncteur basse tension

Country Status (5)

Country Link
US (1) US7064640B2 (fr)
EP (1) EP1554739B1 (fr)
CN (1) CN1331173C (fr)
DE (2) DE10250950B4 (fr)
WO (1) WO2004040608A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005047741B4 (de) 2005-09-29 2013-02-14 Siemens Aktiengesellschaft Elektrischer Schalter
DE102007058216A1 (de) 2007-11-30 2009-06-04 Siemens Ag Lichtbogen-Löscheinrichtung für einen elektrischen Schalter
CN113690111B (zh) * 2021-07-14 2024-08-02 上海立新电器控制设备有限公司 一种用于断路器的弧夹角灭弧结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3539673A1 (de) * 1985-11-06 1987-05-07 Siemens Ag Kontaktanordnung fuer niederspannungs-leistungsschalter mit hauptkontakten und abbrennkontakten
KR900007273B1 (ko) * 1986-09-16 1990-10-06 미쓰비시전기 주식회사 회로 차단기
DE9206136U1 (de) * 1992-05-07 1993-09-09 Siemens AG, 80333 München Elektrisches Schaltgerät mit Lichtbogenleitteilen
FR2803687B1 (fr) * 2000-01-07 2002-02-22 Schneider Electric Ind Sa Pole pour disjoncteur electrique, muni d'une chambre d'extinction d'arc large
DE10048328C2 (de) 2000-09-28 2003-01-23 Aeg Niederspannungstech Gmbh Lichtbogen-Löscheinrichtung
US6417474B1 (en) * 2001-05-15 2002-07-09 Eaton Corporation Electrical switching apparatus having an arc runner with an elongated raised ridge

Also Published As

Publication number Publication date
US20060044091A1 (en) 2006-03-02
CN1331173C (zh) 2007-08-08
HK1079614A1 (en) 2006-04-07
DE10250950A1 (de) 2004-05-13
DE10250950B4 (de) 2004-10-28
WO2004040608A1 (fr) 2004-05-13
US7064640B2 (en) 2006-06-20
CN1689125A (zh) 2005-10-26
DE50304387D1 (de) 2006-09-07
EP1554739A1 (fr) 2005-07-20

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