EP0752153B1 - Chambre d'extinction d'arc a trois barrieres de passage des gaz de l'arc - Google Patents

Chambre d'extinction d'arc a trois barrieres de passage des gaz de l'arc Download PDF

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Publication number
EP0752153B1
EP0752153B1 EP95913022A EP95913022A EP0752153B1 EP 0752153 B1 EP0752153 B1 EP 0752153B1 EP 95913022 A EP95913022 A EP 95913022A EP 95913022 A EP95913022 A EP 95913022A EP 0752153 B1 EP0752153 B1 EP 0752153B1
Authority
EP
European Patent Office
Prior art keywords
barrier
arc
bars
splitters
quenching chamber
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
EP95913022A
Other languages
German (de)
English (en)
Other versions
EP0752153B2 (fr
EP0752153A1 (fr
Inventor
Karl-Heinz Manthe
Martin Böttcher
Günter SEIDLER-STAHL
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
Original Assignee
Siemens 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6513662&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0752153(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0752153A1 publication Critical patent/EP0752153A1/fr
Application granted granted Critical
Publication of EP0752153B1 publication Critical patent/EP0752153B1/fr
Publication of EP0752153B2 publication Critical patent/EP0752153B2/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
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to an arc quenching chamber for one Circuit breaker with a chamber housing, in the chamber housing arranged arc guide rails and with in mutual extinguishers supported with and one above the quenching plates, three barriers comprehensive cooling arrangement for escaping arc gases, the first barrier immediately above the quenching plates and the second barrier spaced from the first barrier is arranged and wherein the first and the second barrier directed parallel to the end faces of the quenching plates Have passage openings, also with one to the connecting the second barrier, to the outside through the with Exit barrier provided third barrier completed Cooling chamber.
  • the invention has for its object the cooling effect of Arrangement of barriers with the smallest possible dimensions and to improve long life so that at the Exit side of the arc quenching chamber is only a minimal one Safety distance to earthed components is required.
  • the invention In the arc quenching chamber according to the above-mentioned US-A-3 005 892 is that between the second and third Barrier located cooling chamber designed as a mixing chamber, in the arcing gases not only through the first and the second Barrier through, but also past this laterally can enter directly.
  • the invention each have an arc guide rail and the subsequent quenching sheet from one Covered end web, such that arc gases in the between the second and the third barrier cooling chamber can only enter along the webs of the second barrier.
  • the webs In addition to a slotted plate-shaped parts the webs have greater mechanical strength in the dimensioning specified at the outset the property to which Arc gases have a stronger directivity than this slotted panels are capable.
  • This property can still be improved in that the webs of the first and the second barrier has an approximately square cross-sectional shape and that the distance between the barriers is 0.1 to 0.5 times the height of the webs.
  • This arrangement forces the arc gases to flow through the first and the second barrier to a two-way change of direction of 90 °, with partial flows of the gases above the webs of the first barrier directed against each other and thereby braked will. The gases then occur with intensive vortex formation and expansion into the cooling chamber and lose to most of their ionization.
  • On the exit side of the third barrier are therefore the temperature and the Degree of ionization of the gases reduced so much that only a small safety distance from earthed parts note is.
  • the outlet openings of the third barrier can be slit-like trained and parallel to the webs of the first and the second barrier, but offset from it, in be arranged an end wall of the end body.
  • the number and the arrangement of these outlet openings can Duration of the arc gases in the cooling chamber and their Flow rate can be influenced. This can in particular by the fact that the outlet openings in one opposite the webs of the first and the second Barrier deviating division are arranged.
  • the final body can be used as a uniform hollow body made of a thermoset Be made of plastic.
  • FIG. 1 shows an arc quenching chamber Low voltage circuit breaker with a movable Switch contact in section.
  • FIG. 1 Figure 2 A top view of the arc quenching chamber according to FIG. 1 Figure 2 shows.
  • FIGS. 1 and 2 An end piece of the arc extinguishing chamber according to FIGS. 1 and 2 is in Figure 3 with a view of the interior shown bottom side.
  • Figures 4 and 5 are sections IV-IV and V-V in the figure 3rd
  • the arc quenching chamber 1 according to FIG. 1 is a component a low-voltage circuit breaker for use up to 1000 V and a switching capacity up to about 100,000 A.
  • the structure of the circuit breaker for the invention is not essential, are only an upper one Connection rail 2 with a fixed contact piece 3 and an associated movable contact lever 4 with an arcing horn 5 shown.
  • the switch-on position is extended, dash-dotted lines show the switch lever 4 in the off position indicated.
  • the arc quenching chamber 1 has a two-part chamber housing 6 with a lower shaft body 7 and one end body 8 closing at the top.
  • Extinguishing plates 10 are arranged at a mutual distance. This quenching plate arrangement is on both sides by one Arc guide rail 11 or 12 completed, the left arc guide rail 11 with a small distance fixed arcing horn 13 faces and the right Arc guide rail 12 so angled at the lower end is formed that the movable contact lever with his Arc horn 5 in the off position at the end of Bending is present.
  • baffles 10 end in a plane near the top of the shaft body 7 and are against displacement in the longitudinal direction secured by the end body 8.
  • a left end bridge 16 and a right one End web 17 are wider than the webs 15, and in such a way that the last baffle plate 10 and the subsequent arc guide rail 11 or 12 on the end web 16 or 17 are present.
  • the webs 15 in connection with the end webs 16 and 17 form a first barrier 20 for arc gases, that arise when switching and that before Cool and discharge into the free environment are.
  • the bars 21 are one Division unit of the quenching plates 10 arranged shifted, so that every second baffle plate a web 21 with a distance faces.
  • the cross-sectional shape of the webs 15 and 21 is according to the Figures 1 and 4 shaped the same and approximately square.
  • the width b and the height h correspond to the webs 15 and 21 approximately the pitch t of the quenching plates 10.
  • a third Barrier 24 is through an end wall 23 of the end body 8 educated.
  • the end wall 23 contains the outlet openings 26 (Figure 2), through which the cooled and deionized Arc gases leave the arc quenching chamber 1. While the first and second barriers 20 and 22 only one have a small mutual distance d ( Figure 4), the about a quarter of the width b or the height h of the webs 15 or 21, is between the second and third Barrier 22 and 24 provided a greater distance a cooling chamber 25 is formed.
  • the outlet openings 26 of the third barrier 24 are elongated and parallel to the webs 15 and 21 of the first and the second Barrier 20 and 22 arranged.
  • the webs 15 are the first Barrier 20 with one another at the edge by a cross piece 27 connected. This also creates a contact surface for those baffles 10 formed that are not on the webs 15 of the first barrier 20 are present. Furthermore, one Comparison of Figures 2 and 3 to see that the outlet openings 26 are shorter than that by the webs 15 and 21 openings formed. The division dimension of the outlet openings is also 26 deviating from the pitch t ( Figure 1) of the webs 15 and 21 selected. This avoids that one The gap between the webs 21 just has an outlet opening 26 faces.
  • the end body 8 has edge pieces 30 projecting on all sides, 31 and 32 and 33 to rest on the front end of the Manhole body 7. Through holes 34 in the corners of the mentioned edge pieces are for connecting the end body 8 and of the shaft body 7 is provided by means of screws 35.
  • the contact lever 4 is turned off of the position shown in dashed lines position shown moves.
  • resulting switching arcing from the fixed contact 3 and the arcing horn 5 of the contact lever 4 on the Arc guide rails 11 and 12 transferred.
  • the webs 15 practice the first barrier 20 due to its relatively large height and their parallel flanks have a directivity on the gas flow out.
  • the partial flows of the gas then meet the lower surfaces of the webs 21 of the barrier 22 and due to the small distance d between the webs 15 and 21 a deflection forced by about 90 °.
  • a deflection forced by about 90 ° In the space between two webs 21 of the second barrier 22 each meet two deflected partial flows of the arc gases against each other and can the space between the webs 21 only after repeated Leave the deflection by 90 ° in the direction of the cooling chamber 25. This happens with vigorous vortex formation and expansion. This is associated with a strong cooling and one Recombination of load carriers.
  • the dwell time of the arc gases in the cooling chamber 25 is influenced by the dimensioning of the outlet openings 26 Despite the good effectiveness of the arrangement described by Barriers 20, 22 and 24 claim the arrangement described only a relatively small part of the total height the arc quenching chamber 1. Furthermore, no conductive Parts such as wire mesh, mesh made of expanded metal or the like Items needed to achieve the desired cooling and deionization of the arc gases. Therefore stands out the described arc quenching chamber 1 also by a great security against electrical arcing on the Exit side of the quenching plates 10. The safety distance to earthed components to a small extent of about 20 - 60 mm reduced.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)

Claims (8)

  1. Chambre (1) d'extinction d'arc électrique pour un disjoncteur, comportant un boítier (6) de chambre, des rails (11, 12) de guidage d'arc électrique montés dans le boítier (6) de chambre et comportant des tôles (10) d'extinction soutenues à distance mutuelle ainsi que comportant un dispositif de refroidissement pour des gaz d'arc électrique sortants, qui est monté au dessus des tôles (10) d'extinction et qui comporte trois barrières, la première barrière (20) étant montée directement au dessus des tôles (10) d'extinction et la deuxième barrière (22) étant montée à distance de la première barrière (20) , et la première barrière (20) et la deuxième barrière (22) ayant des ouvertures de passage dirigées parallèlement à des faces (14) frontales des tôles (10) d'extinction, comportant de plus une chambre (25) de refroidissement faisant suite à la deuxième barrière (22) et fermée vers l'extérieur par la troisième barrière (24) munie d'ouvertures (26) de sortie,
       caractérisée par les dispositions suivantes :
    la première barrière (20) est formée par des barrettes (15) du boítier (6) de chambre, qui sont montées à une distance double de celle (t) séparant les tôles (10) d'extinction et dont chacune sert de butée à une tôle (10) d'extinction,
    la deuxième barrière (22) est formée également par des barrettes (21) du boítier (6) de chambre qui sont disposées en étant décalées par rapport aux barrettes (15) de la première barrière (20) de la distance qui sépare les tôles (10) d'extinction, et
    la largeur (b) et la hauteur (h) des barrettes (15, 21) correspondent à peu près à la distance (t) qui sépare les tôles (10) d'extinction.
  2. Chambre d'extinction d'arc électrique suivant la revendication 1, caractérisée en ce que chaque rail (11, 12) de guidage d'arc électrique et la tôle (10) d'extinction qui y fait suite sont recouverts d'une barrette (16, 17) d'extrémité, de telle manière que des gaz d'arc électrique ne peuvent rentrer dans la chambre (25) de refroidissement se trouvant entre la deuxième barrière (22) et la troisième barrière (24) qu'en passant le long des barrettes (21) de la deuxième barrière (22).
  3. Chambre d'extinction d'arc électrique suivant la revendication 1 ou 2, caractérisée en ce que les barrettes (15, 21) de la première barrière (20) et de la deuxième barrière (22) ont une forme de section transversale à peu près carrée et en ce que la distance (d) entre les barrières (20, 22) est égale à 0,1 à 0,5 fois la hauteur (h) des barrettes (15, 21).
  4. Chambre d'extinction d'arc électrique suivant l'une des revendications précédentes, caractérisée en ce que, en cas de subdivision du boítier (6) de chambre en un élément (7) de puits recevant les tôles d'extinction et en un élément (8) d'extrémité fermant l'élément (6) de puits en haut, la première barrière (20), la deuxième barrière (22) et la troisième barrière (24) font partie de l'élément (8) d'extrémité.
  5. Chambre d'extinction d'arc électrique suivant la revendication 4, caractérisée en ce que les barrettes (15) de la première barrière (20) sont reliées par une barrette (27) transversale qui est située du côté du bord et qui forme une butée pour une tôle (10) d'extinction sur deux qui n'est pas en contact avec l'une des barrettes (15) de la première barrière (20).
  6. Chambre d'extinction d'arc électrique suivant la revendication 4 ou 5, caractérisée en ce que les ouvertures (26) de sortie de la troisième barrière (24) sont réalisées à la façon de fentes et sont ménagées dans une paroi (23) frontale de l'élément (8) d'extrémité parallèlement aux barrettes (15, 21) de la première barrière (20) et de la deuxième barrière (22), mais en en étant décalées.
  7. Chambre d'extinction d'arc électrique suivant la revendication 6, caractérisée en ce que les ouvertures (26) de sortie sont ménagées à un pas différent par rapport aux barrettes (15, 21) de la première barrière (20) et de la deuxième barrière (22).
  8. Chambre d'extinction d'arc électrique suivant l'une des revendications 4 à 6, caractérisée en ce que l'élément (8) d'extrémité est réalisé en élément creux d'un seul tenant en une matière plastique thermodurcissable.
EP95913022A 1994-03-21 1995-03-10 Chambre d'extinction d'arc a trois barrieres de passage des gaz de l'arc Expired - Lifetime EP0752153B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4410108A DE4410108C2 (de) 1994-03-21 1994-03-21 Lichtbogenlöschkammer mit drei Barrieren für den Durchtritt von Lichtbogengasen
DE4410108 1994-03-21
PCT/DE1995/000347 WO1995026033A1 (fr) 1994-03-21 1995-03-10 Chambre d'extinction d'arc a trois barrieres de passage des gaz de l'arc

Publications (3)

Publication Number Publication Date
EP0752153A1 EP0752153A1 (fr) 1997-01-08
EP0752153B1 true EP0752153B1 (fr) 1998-08-12
EP0752153B2 EP0752153B2 (fr) 2002-09-25

Family

ID=6513662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95913022A Expired - Lifetime EP0752153B2 (fr) 1994-03-21 1995-03-10 Chambre d'extinction d'arc a trois barrieres de passage des gaz de l'arc

Country Status (5)

Country Link
US (1) US5756951A (fr)
EP (1) EP0752153B2 (fr)
JP (1) JPH09510574A (fr)
DE (2) DE4410108C2 (fr)
WO (1) WO1995026033A1 (fr)

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US5470701A (en) * 1993-02-24 1995-11-28 The Regents Of The University Of California Method for determining favorable prognosis in an HIV positive subject using HLA-DR+ /CD38- CD8bright cells
DE29612636U1 (de) 1996-07-15 1997-08-14 Siemens AG, 80333 München Lichtbogenlöschkammer für Niederspannungs-Leistungsschalter
DE29617358U1 (de) * 1996-09-24 1998-01-29 Siemens AG, 80333 München Lichtbogenlöschkammer für Niederspannungs-Leistungsschalter
US5861596A (en) * 1997-04-01 1999-01-19 Eaton Corporation Dual baffle apparatus for electrical switching device
DE29720715U1 (de) * 1997-11-21 1998-01-22 Siemens AG, 80333 München Schaltgerät mit Lichtbogen-Löscheinrichtung
JP3411206B2 (ja) * 1997-12-26 2003-05-26 三菱電機株式会社 接点開閉機器の消弧装置
DE19920042C1 (de) 1999-04-23 2001-01-18 Siemens Ag Schaltgasdämpfer für Niederspannungs-Leistungsschalter
DE10033936A1 (de) * 2000-07-05 2002-01-17 Siemens Ag Niederspannungs-Leistungsschalter mit einer Lichtbogenlöschkammer und mit einem Schaltgasdämpfer
DE10036370B4 (de) * 2000-07-18 2009-07-09 Siemens Ag Lichtbogenlöscheinrichtung mit einem Aufsatz für Niederspannungs-Schaltgeräte
DE10049726A1 (de) * 2000-09-29 2002-04-11 Siemens Ag Kammerdeckelbefestigung für Lichtbogenlöschkammern für Niederspannungsschaltgeräte
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US7176771B2 (en) 2001-08-24 2007-02-13 Square D Company Circuit breaker filter assembly
DE10149019C1 (de) * 2001-09-28 2003-06-18 Siemens Ag Lichtbogenlöscheinrichtung für Niederspannungs-Schaltgeräte
DE102004001943A1 (de) * 2004-01-14 2005-08-04 Abb Patent Gmbh Elektrisches Schaltgerät
DE102004037294A1 (de) * 2004-07-27 2006-03-23 Siemens Ag Lichtbogen-Löscheinrichtung sowie Niederspannungs-Leistungsschalter mit einer Leichtbogen-Löscheinrichtung
NL1027342C2 (nl) * 2004-10-26 2006-04-27 Eaton Electric Nv Bluskamer voor beveiligingsschakelaar.
DE102005043396A1 (de) * 2005-09-08 2007-03-15 Siemens Ag Auswechselbare Löschblechkassette für einen Leistungsschalter sowie Leistungsschalter mit auswechselbarer Löschblechkassette
US7202436B1 (en) * 2005-10-28 2007-04-10 Eaton Corporation Secondary arc chute and electrical switching apparatus incorporating same
US7488915B2 (en) 2006-09-20 2009-02-10 Eaton Corporation ARC baffle, and ARC chute assembly and electrical switching apparatus employing the same
KR101094775B1 (ko) * 2010-07-06 2011-12-16 엘에스산전 주식회사 배선용차단기의 소호기구
CN105336526A (zh) * 2015-12-10 2016-02-17 二一三电器(上海)有限公司 双断点触头的灭弧装置
CN105405706A (zh) * 2015-12-29 2016-03-16 上海电器陶瓷厂有限公司 一种隔离开关的灭弧室
KR20180114763A (ko) * 2017-04-11 2018-10-19 엘에스산전 주식회사 기중 차단기의 아크가스 배출구조
FR3065316B1 (fr) * 2017-04-14 2019-07-05 Schneider Electric Industries Sas Dispositif de filtrage de gaz de coupure pour un appareil de coupure d'un courant electrique et appareil de coupure d'un courant electrique comportant ce dispositif de filtrage
US10650993B1 (en) * 2019-03-19 2020-05-12 Siemens Industry, Inc. Circuit breaker with enhanced arc extinguishing chamber
WO2020261429A1 (fr) * 2019-06-26 2020-12-30 三菱電機株式会社 Disjoncteur à air

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Also Published As

Publication number Publication date
DE4410108C2 (de) 1996-08-22
WO1995026033A1 (fr) 1995-09-28
JPH09510574A (ja) 1997-10-21
EP0752153B2 (fr) 2002-09-25
EP0752153A1 (fr) 1997-01-08
US5756951A (en) 1998-05-26
DE59503170D1 (de) 1998-09-17
DE4410108A1 (de) 1995-09-28

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