EP1056105B1 - Electrical installation device, particularly a circuit breaker - Google Patents

Electrical installation device, particularly a circuit breaker Download PDF

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Publication number
EP1056105B1
EP1056105B1 EP00110302A EP00110302A EP1056105B1 EP 1056105 B1 EP1056105 B1 EP 1056105B1 EP 00110302 A EP00110302 A EP 00110302A EP 00110302 A EP00110302 A EP 00110302A EP 1056105 B1 EP1056105 B1 EP 1056105B1
Authority
EP
European Patent Office
Prior art keywords
arc
generation region
loop
iron plate
circuit breaker
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
EP00110302A
Other languages
German (de)
French (fr)
Other versions
EP1056105A3 (en
EP1056105A2 (en
Inventor
Heinz Dr.-Ing. Popa
Bernhard Allgaier
Werner Bruckner
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 Patent GmbH
Original Assignee
ABB Patent GmbH
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 Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1056105A2 publication Critical patent/EP1056105A2/en
Publication of EP1056105A3 publication Critical patent/EP1056105A3/en
Application granted granted Critical
Publication of EP1056105B1 publication Critical patent/EP1056105B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346Details concerning the arc formation chamber
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Definitions

  • the invention relates to an electrical installation device, in particular a circuit breaker, according to the preamble of claim 1.
  • an installation device is known from document DE-195 249 15.
  • Installation switchgear of this type serves for an overcurrent or a short-circuit current off.
  • the contact pieces are arcing plates assigned, in the case of a switch-off between the fixed and arcing generated in the movable contact piece runs to its quenching.
  • the object of the invention is to define the ring-shaped electromagnetic field, that is to say the blowing field, to strengthen and focus.
  • an insulating plate is arranged on each of them, which defines the arcing area limited on both sides; is located behind the insulating plates an iron plate, the iron plate that is on the side of the loop, is arranged within the loop or the loop the iron sheet on his At least partially surrounds the outer circumference.
  • Fig. 1 shows the arcing area of a circuit breaker, in which is a fixed contact piece 11 attached to an arc guide rail 10 as well as a movable contact piece 12, which is located on an axis 13 pivotable contact lever 14 is attached.
  • a further arc guide rail 15 is assigned to the arcing area, which is composed of a plurality of arc-extinguishing plates 16 on both sides 17 limit.
  • Fig. 2 shows the arrangement along section line II-II of Fig. 1.
  • the loop 18 is located outside the insulating plate 22.
  • a first iron plate 23 is provided inside the loop 18, that is practically in one plane therewith.
  • a second iron plate 24 is provided inside the loop 18, that is practically in one plane therewith.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The contacts (11,12) of the power switch are located in a chamber that encloses the arcing region (20). The chamber has a pa of insulating plates (21,22) and outside of these iron plates (23,24). One of the plates is part of a current loop (18).

Description

Die Erfindung betrifft ein elektrisches Installationsgerät, insbesondere einen Leitungsschutzschalter, gemäß dem Oberbegriff des Anspruches 1. So ein Installations geräte ist aus dem Dokument DE-195 249 15 bekannt.The invention relates to an electrical installation device, in particular a circuit breaker, according to the preamble of claim 1. Such an installation device is known from document DE-195 249 15.

Solche Installationsschaltgeräte dienen dazu, einen Überstrom oder einen Kurzschlußstrom abzuschalten. Zu diesem Zweck sind den Kontaktstücken Lichtbogenlöschbleche zugeordnet, in die bei einem Ausschaltvorgang der zwischen dem feststehenden und dem beweglichen Kontaktstück erzeugte Lichtbogen zu seiner Löschung hineinläuft.Installation switchgear of this type serves for an overcurrent or a short-circuit current off. For this purpose, the contact pieces are arcing plates assigned, in the case of a switch-off between the fixed and arcing generated in the movable contact piece runs to its quenching.

Wenn man seitlich an dem Lichtbogenentstehungsbereich eine stromdurchflossene Schleife anbringt, dann erzeugt man hierdurch ein ringförmiges, elektromagnetisches Feld, das eine verdrängende Wirkung auf das elektrische Feld des Schaltlichtbogens erzeugt und seine Wanderbewegung auf den den Kontaktstücken zugeordneten Lichtbogenlaufschienen beschleunigt.If you have a current through the side of the arcing area Attaches a loop, then this creates an annular, electromagnetic Field that has a displacing effect on the electrical field of the switching arc generated and its traveling movement on the arc guide rails assigned to the contact pieces accelerated.

Aufgabe der Erfindung ist es, das ringförmige elektromagnetische Feld, also das Blasfeld, zu verstärken und zu konzentrieren. The object of the invention is to define the ring-shaped electromagnetic field, that is to say the blowing field, to strengthen and focus.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.

Eine weitere, die Wirkungsweise der Maßnahmen gemäß Anspruch 1 verbessernde Ausgestaltung ist dem Anspruch 2 zu entnehmen.Another that improves the operation of the measures according to claim 1 Design can be found in claim 2.

Erfindungsgemäß also ist entweder auf einer Seite des Uchtbogenentstehungsbereiches oder auf beiden jeweils eine Isolierplatte angeordnet, die den Lichtbogenentstehungsbereich beidseitig begrenzt; hinter den isolierenden Platten befindet sich jeweils eine Eisenplatte, wobei diejenige Eisenplatte, die sich auf der Seite der Schleife befindet, innerhalb der Schleife angeordnet ist bzw. die Schleife das Eisenblech an seinem Außenumfang wenigstens teilweise umgibt.According to the invention, therefore, is either on one side of the Uchtbogenzogenungsbereiches or an insulating plate is arranged on each of them, which defines the arcing area limited on both sides; is located behind the insulating plates an iron plate, the iron plate that is on the side of the loop, is arranged within the loop or the loop the iron sheet on his At least partially surrounds the outer circumference.

Diese Anordnung erzeugt eine schnellere Wanderbewegung des Lichtbogens in Richtung Löschkammer, was eine deutliche Verbesserung der Kurzschlußstrombegrenzung zur Folge hat, so daß sich auch eine Verbesserung des Leitungsschutzes und der Selektivität ergibt.This arrangement creates a faster traveling movement of the arc in the direction Arcing chamber, which is a significant improvement in the short-circuit current limitation has the consequence that there is also an improvement in line protection and selectivity results.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Using the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements the invention are explained and described in more detail.

Es zeigen:

Fig. 1
eine Schnittansicht eines Lichtbogenentstehungsbereiches gemäß Schnittlinie I-I der Fig. 2, und
Fig. 2
eine Schnittansicht gemäß Schnittlinie II-II der Fig. 1.
Show it:
Fig. 1
FIG. 2 shows a sectional view of an arcing region according to section line II of FIG
Fig. 2
2 shows a sectional view along section line II-II of FIG. 1.

Die Fig. 1 zeigt den Lichtbogenentstehungsbereich eines Leitungsschutzschalters, in dem sich ein an einer Lichtbogenleitschiene 10 angebrachtes festes Kontaktstück 11 sowie ein bewegliches Kontaktstück 12 befinden, welches an einem um eine Achse 13 schwenkbaren Kontakthebel 14 angebracht ist. Fig. 1 shows the arcing area of a circuit breaker, in which is a fixed contact piece 11 attached to an arc guide rail 10 as well as a movable contact piece 12, which is located on an axis 13 pivotable contact lever 14 is attached.

Dem Lichtbogenentstehungsbereich ist eine weitere Lichtbogenleitschiene 15 zugeordnet, die beidseitig ein aus mehreren Lichtbogenlöschblechen 16 bestehendes Lichtbogenlöschblechpaket 17 begrenzen.A further arc guide rail 15 is assigned to the arcing area, which is composed of a plurality of arc-extinguishing plates 16 on both sides 17 limit.

Auf einer Seite, also bei der Ansicht gemäß Fig. 1 hinter dem Lichtbogenentstehungsbereich befindet sich eine Schleife 18, die im stromdurchflossenen Zustand ein elektromagnetisches Feld erzeugt, welches den zwischen dem feststehenden Kontaktstück 11 und dem beweglichen Kontaktstück 12 entstehenden Lichtbogen 19 in das Lichtbogenlöschblechpaket 17 antreibt.On one side, that is to say in the view according to FIG. 1, behind the arcing area there is a loop 18, which is an electromagnetic in the current-carrying state Field that creates the between the fixed contact piece 11 and the movable contact piece 12 arcing 19 in the arc quenching plate package 17 drives.

Die Fig. 2 zeigt die Anordnung gemäß Schnittlinie II-II der Fig. 1. Beidseitig zu dem Lichtbogenentstehungsbereich 20 befinden sich zwei Isolierstoffplatten 21 und 22 und außerhalb der Isolierstoffplatte 22 befindet sich die Schleife 18. Innerhalb der Schleife 18, also praktisch in einer Ebene damit, ist eine erste Eisenplatte 23 vorgesehen, der eine zweite Eisenplatte 24 auf der entgegengesetzten Seite, außerhalb der Isolierstoffplatte 21, entspricht.Fig. 2 shows the arrangement along section line II-II of Fig. 1. On both sides of the Arcing area 20 there are two insulating plates 21 and 22 and The loop 18 is located outside the insulating plate 22. Inside the loop 18, that is practically in one plane therewith, a first iron plate 23 is provided a second iron plate 24 on the opposite side, outside the insulating plate 21, corresponds.

Durch diese Anordnung wird das durch die Schleife erzeugte magnetische Blasfeld verstärkt und konzentriert und somit der Lichtbogen beschleunigt, so daß er schneller in das Lichtbogenlöschblechpaket einläuft und demgemäß die Qualität des Leitungsschutzes verbessert wird.With this arrangement, the magnetic blowing field generated by the loop amplified and concentrated and thus accelerates the arc so that it enters faster the arc-quenching plate package comes in and accordingly the quality of the line protection is improved.

Claims (2)

  1. Electric installation switching device, in particular a circuit-breaker, having a fixed contact piece (11), and a moving contact piece (12) fastened on a pivotable contact lever (14), between which, when there is a disconnection, an arc (19) is produced which runs into an arc splitter stack (17) for quenching in a fashion supported by a blowout field generated by a current-carrying loop (18), characterized in that a first iron plate (23) is arranged inside the loop (18) arranged on one side of the arc generation region (20), and in that a first insulating plate is provided between the arc generation region (20) and the first iron plate (23).
  2. Electric installation switching device according to Claim 1, characterized in that a further insulating plate (21), which adjoins the arc generation region (20), is provided on the other side of the arc generation region (20), and a second iron plate (24) is arranged outside the further insulating plate (21).
EP00110302A 1999-05-27 2000-05-13 Electrical installation device, particularly a circuit breaker Expired - Lifetime EP1056105B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924414A DE19924414A1 (en) 1999-05-27 1999-05-27 Electrical installation device, in particular circuit breaker
DE19924414 1999-05-27

Publications (3)

Publication Number Publication Date
EP1056105A2 EP1056105A2 (en) 2000-11-29
EP1056105A3 EP1056105A3 (en) 2002-04-10
EP1056105B1 true EP1056105B1 (en) 2003-05-28

Family

ID=7909423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110302A Expired - Lifetime EP1056105B1 (en) 1999-05-27 2000-05-13 Electrical installation device, particularly a circuit breaker

Country Status (4)

Country Link
EP (1) EP1056105B1 (en)
AT (1) ATE241852T1 (en)
DE (2) DE19924414A1 (en)
PL (1) PL340281A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10242310A1 (en) * 2001-11-16 2003-07-10 Abb Patent Gmbh Electric arc extinguishing unit for an electric switch, comprises a housing with upper and lower sections and an extinguishing chamber
EP1313117B1 (en) 2001-11-16 2014-06-04 Abb Ag Arc quenching device for an electronic switch device
DE102004032738A1 (en) * 2004-07-07 2006-02-09 Abb Patent Gmbh Arc extinguishing system for an electrical switch uses a conductor system that generates a field resulting in rapid response
DE102005007282A1 (en) * 2005-02-17 2006-08-24 Abb Patent Gmbh Electrical installation device with arc prechamber space, prechamber plates and current limiting arc quenching device
US9006601B2 (en) * 2013-03-13 2015-04-14 Eaton Corporation Arc chamber for bi-directional DC

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334108A1 (en) * 1983-09-21 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Arc extinguishing system
DE3337562A1 (en) * 1983-10-15 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Extinguishing device for a line-protection circuit breaker
US4743720A (en) * 1985-11-25 1988-05-10 Matsushita Electric Works, Ltd. Current limiting circuit interrupter
FR2622736B1 (en) * 1987-10-28 1995-04-14 Merlin Gerin LOW VOLTAGE CIRCUIT BREAKER, DIRECT CURRENT, AND ARC GUIDING CHEEKS
DE19518049A1 (en) * 1995-05-17 1996-11-21 Abb Patent Gmbh Arc extinguishing device esp. for small modular switch device e.g. circuit breaker
DE19524915C2 (en) * 1995-07-08 2003-06-26 Abb Patent Gmbh Arc extinguishing arrangement for an electrical switch, in particular for a circuit breaker

Also Published As

Publication number Publication date
DE50002327D1 (en) 2003-07-03
EP1056105A3 (en) 2002-04-10
DE19924414A1 (en) 2000-11-30
EP1056105A2 (en) 2000-11-29
ATE241852T1 (en) 2003-06-15
PL340281A1 (en) 2000-12-04

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