EP0183114A2 - Interrupteur de protection électrique - Google Patents

Interrupteur de protection électrique Download PDF

Info

Publication number
EP0183114A2
EP0183114A2 EP85114302A EP85114302A EP0183114A2 EP 0183114 A2 EP0183114 A2 EP 0183114A2 EP 85114302 A EP85114302 A EP 85114302A EP 85114302 A EP85114302 A EP 85114302A EP 0183114 A2 EP0183114 A2 EP 0183114A2
Authority
EP
European Patent Office
Prior art keywords
arc
guide rail
quenching
contact piece
arc guide
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.)
Granted
Application number
EP85114302A
Other languages
German (de)
English (en)
Other versions
EP0183114B1 (fr
EP0183114A3 (en
Inventor
Klaus Dipl.-Ing. Greefe
Richard Dipl.-Ing. Kommert
Erwin Ing. Grad. Muders
Rudolf Sellner
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
Original Assignee
Brown Boveri und Cie AG Germany
Asea Brown Boveri AG Germany
BBC Brown Boveri AG Germany
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 Brown Boveri und Cie AG Germany, Asea Brown Boveri AG Germany, BBC Brown Boveri AG Germany filed Critical Brown Boveri und Cie AG Germany
Publication of EP0183114A2 publication Critical patent/EP0183114A2/fr
Publication of EP0183114A3 publication Critical patent/EP0183114A3/de
Application granted granted Critical
Publication of EP0183114B1 publication Critical patent/EP0183114B1/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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • 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
    • H01H2009/305—Means for extinguishing or preventing arc between current-carrying parts including means for screening for arc gases as protection of mechanism against hot arc gases or for keeping arc gases in the arc chamber
    • 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
    • H01H2009/348—Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber

Definitions

  • the invention relates to an electrical circuit breaker according to the preamble of claim 1.
  • It relates in particular to the arc quenching arrangement, specifically with an extinguishing chamber antechamber and an arc quenching plate package.
  • exhaust air ducts have been provided to the outside, which may also be provided with inserts, for example made of metal wool, in order to achieve adequate gas cooling. It is also essential that the introduction of pointed objects from the outside in is prevented; this is achieved with diversions or so-called baffles.
  • the object of the invention is to provide a circuit breaker of the type mentioned, in which an escape of the exhaust gases from the switchgear housing is prevented.
  • the already cooled arc quenching gases can re-enter the quenching chamber space, the arc is additionally pressed into the arc quenching chamber due to this back-blowing.
  • FIG. 1 The arrangement shown in FIG. 1 is installed in a circuit breaker which in the usual way has a thermal release, an electromagnetic release, a contact point and an associated arc extinguishing arrangement which is matched to it.
  • the arc extinguishing arrangement to which the invention relates is designated in its entirety in FIG. 1 by reference number 10.
  • the switch also has a fixed contact piece 12 attached to an arc guide rail 11 and a movable contact piece 14 attached to a movable contact lever 13.
  • the arc guide rail 11 extends approximately L-shaped with a first leg, which is not numbered in more detail the fixed contact piece 12 carries, and with a perpendicular to this second leg 16; This second leg 16 is followed by an arc-quenching plate packet 17, the arc-quenching plates 20 of which run parallel to the leg 16. On the other side of the arc-quenching plate packet 17 there is another arc-guiding rail 18, so that the two arc-guiding rails 18, 16 take the arc-quenching plate packet 17 between them.
  • the entire arrangement of the arc guide rails 11 and 18 with the arc quenching plate package 17 are accommodated in a housing 15, which is shown in FIG. 1 as an independent housing, but which can actually be part of the housing receiving the circuit breaker.
  • the housing shown in FIG. 1 has four housing walls which form a practically closed rectangle, a base region 21, a side region 22, an upper region 23 and a bulkhead section 24.
  • the two regions 21 and 23 lie just like regions 22 and 24 opposite one another and delimit a rectangle in this way.
  • the housing walls which are parallel to the plane of the drawing cannot be seen in FIG. 1; it can be the two side walls of the circuit breaker.
  • a further partition wall section 25 is provided in the extension of the partition wall 24.
  • the distances between the arc guide rails 11 and 16, 18 from the adjacent housing walls are at a distance D 3 (distance of the guide rail 18 from the housing wall 24) and D 4 (distance of the leg 16 from the housing wall 22) and that between the guardrail 18 and that adjacent beard arc extinguishing sheet 20 a distance D 2 and between the leg 16 and the adjacent arc extinguishing sheet 19 a distance D 1 is provided.
  • a channel 26 and 27 is located between the arc guide rail 11 with the leg 16 and the housing wall 21 and 22, respectively.
  • the channel shape in the region of the bottom wall 21 can be seen from FIG. 2. It can be seen that this channel area forms a U-shaped recess with a channel bottom 27a and channel side walls 28 and 29; the width D of the arc guide rail 11 is narrower than the width of the channel 26, so that a passage 30 and 31 is provided between the side edges of the arc guide rail 11 and the side walls 28 and 29.
  • the channel section 26 merges into the channel section 27 in stages at 32.
  • the channel section 27 is narrower than section 26 and has a step 32 and 33 upwards on which the arc guide rail 11 or the leg 16 is placed, whereby the leg 16 forms a bridge over the section 27.
  • the width B of the arc guide rail 11/16 is then greater than the width of the channel section.
  • the section 27 thus merges over the step 32 into the broader channel section 26, viewed against the direction of the arc.
  • the gas flow through the channel sections 27 and 26 passes through the passages or passages 30 and 31 according to the direction of arrow P 1 back into the area in front of the arc quenching plate packet 17. Because of the flow through the channel section 27, the arc quenching gases have already cooled sufficiently, so that the into the space in front of the arc quenching plate packet 17 through the passages 30 and 31 is practically fresh again, or at least is deionized. It can then be used optimally and expediently again to accelerate the arc. The same also applies to the gas flow around the arc guide rail 18.
  • the gas flow behind the arc-quenching plate packet 17 is divided into two partial flows by a housing projection 35.
  • This housing projection 35 lies in the extension of the arc-quenching plate 19 adjacent to the leg 16, which means that only the gas flow located between the quenching plate 19 and the leg 16 can get into the channel sections 27 and 26, respectively. There is of course also the possibility that the projection 35 connects to another arc quenching plate.
  • the flue gas side of the arc quenching plate packet is provided in the usual way with a cover 36 which allows the gases formed between the quenching plates to escape to the rear.
  • the channel section 26 is delimited by a wall projection 21a formed in the area of the contact point 12/14.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP85114302A 1984-11-27 1985-11-09 Interrupteur de protection électrique Expired - Lifetime EP0183114B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3443121 1984-11-27
DE19843443121 DE3443121A1 (de) 1984-11-27 1984-11-27 Elektrischer leitungsschutzschalter

Publications (3)

Publication Number Publication Date
EP0183114A2 true EP0183114A2 (fr) 1986-06-04
EP0183114A3 EP0183114A3 (en) 1988-09-28
EP0183114B1 EP0183114B1 (fr) 1991-05-29

Family

ID=6251212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114302A Expired - Lifetime EP0183114B1 (fr) 1984-11-27 1985-11-09 Interrupteur de protection électrique

Country Status (2)

Country Link
EP (1) EP0183114B1 (fr)
DE (2) DE3443121A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178596B (en) * 1985-07-09 1989-11-01 Mitsubishi Electric Corp Arc-extinguishing device
EP0624889A1 (fr) * 1993-05-10 1994-11-17 ABBPATENT GmbH Commutateur électrique
WO1995008832A1 (fr) * 1993-09-24 1995-03-30 Siemens Aktiengesellschaft Sectionneur de puissance pourvu d'un systeme d'extinction d'arc electrique
SG87135A1 (en) * 1999-07-29 2002-03-19 Abb Patent Gmbh Arc splitter stack for an electric switching device
WO2011066887A1 (fr) * 2009-12-01 2011-06-09 Abb Ag Appareil de coupure d'installation équipé d'un dispositif extincteur d'arc
CN104143456A (zh) * 2013-11-13 2014-11-12 国家电网公司 一种直流断路器的主回路

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306226A1 (de) * 1993-02-27 1994-09-01 Abb Patent Gmbh Lichtbogenlöschanordnung, insbesondere für einen Leitungsschutzschalter und Schütze
DE102005007299A1 (de) * 2005-02-17 2006-08-31 Abb Patent Gmbh Elektrisches Installationsgerät mit Lichtbogen-Vorkammerraum, Lichtbogenleitschienen und strombegrenzender Lichtbogenlöscheinrichtung
DE102008039152B4 (de) * 2008-08-21 2019-02-14 Siemens Aktiengesellschaft Lichtbogen-Löschvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194613A (fr) * 1957-08-17 1959-11-10 Stotz Kontakt Gmbh Disjoncteur de grande puissance comportant au moins un canal d'admission des gaz en communication avec la chambre de soufflage de l'arc
DE1765663A1 (de) * 1967-06-28 1971-09-09 Lge Landis & Gyr Eug Ag Lichtbogenloeschkammer in Schmalbauform fuer Schalter hohen Schaltvermoegens
FR2195049A1 (fr) * 1972-08-01 1974-03-01 Merlin Gerin
FR2344112A1 (fr) * 1976-03-10 1977-10-07 Siemens Ag Disjoncteur de ligne
DE3225736A1 (de) * 1982-07-09 1984-01-12 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer leitungsschutzschalter
EP0127336A2 (fr) * 1983-04-28 1984-12-05 Mitsubishi Denki Kabushiki Kaisha Disjoncteur de protection électrique avec un canal d'échappement pour le gaz d'arc

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1413915A1 (de) * 1961-02-22 1969-01-30 Licentia Gmbh Schaltgeraet mit einer aus gasabgebendem Material bestehenden Lichtbogenkammer
DE2716619C2 (de) * 1977-04-15 1979-05-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Strombegrenzender Leitungsschutzschalter mit Maßnahmen zur Erhöhung der Laufgeschwindigkeit des Schaltlichtbogeits
DE2923234C2 (de) * 1979-06-08 1987-03-12 Brown, Boveri & Cie Ag, 6800 Mannheim Für Niederspannungsschaltanlagen bestimmter Leistungsschalter oder Schutzschalter
DE2930090C2 (de) * 1979-07-25 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Leitungsschutzschalter mit einer Löschbleche und Lichtbogenleitschienen aufweisenden Lichtbogenkammer
DE3311052A1 (de) * 1983-03-25 1984-09-27 Siemens AG, 1000 Berlin und 8000 München Selbstschalter, insbesondere leitungsschutzschalter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194613A (fr) * 1957-08-17 1959-11-10 Stotz Kontakt Gmbh Disjoncteur de grande puissance comportant au moins un canal d'admission des gaz en communication avec la chambre de soufflage de l'arc
DE1765663A1 (de) * 1967-06-28 1971-09-09 Lge Landis & Gyr Eug Ag Lichtbogenloeschkammer in Schmalbauform fuer Schalter hohen Schaltvermoegens
FR2195049A1 (fr) * 1972-08-01 1974-03-01 Merlin Gerin
FR2344112A1 (fr) * 1976-03-10 1977-10-07 Siemens Ag Disjoncteur de ligne
DE3225736A1 (de) * 1982-07-09 1984-01-12 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer leitungsschutzschalter
EP0127336A2 (fr) * 1983-04-28 1984-12-05 Mitsubishi Denki Kabushiki Kaisha Disjoncteur de protection électrique avec un canal d'échappement pour le gaz d'arc

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178596B (en) * 1985-07-09 1989-11-01 Mitsubishi Electric Corp Arc-extinguishing device
EP0624889A1 (fr) * 1993-05-10 1994-11-17 ABBPATENT GmbH Commutateur électrique
WO1995008832A1 (fr) * 1993-09-24 1995-03-30 Siemens Aktiengesellschaft Sectionneur de puissance pourvu d'un systeme d'extinction d'arc electrique
US5731561A (en) * 1993-09-24 1998-03-24 Siemens Aktiengesellschaft Power switch with an ARC quenching device
SG87135A1 (en) * 1999-07-29 2002-03-19 Abb Patent Gmbh Arc splitter stack for an electric switching device
WO2011066887A1 (fr) * 2009-12-01 2011-06-09 Abb Ag Appareil de coupure d'installation équipé d'un dispositif extincteur d'arc
CN104143456A (zh) * 2013-11-13 2014-11-12 国家电网公司 一种直流断路器的主回路

Also Published As

Publication number Publication date
EP0183114B1 (fr) 1991-05-29
DE3583005D1 (de) 1991-07-04
DE3443121A1 (de) 1986-05-28
EP0183114A3 (en) 1988-09-28

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