EP0752153B1 - Lichtbogenlöschkammer mit drei barrieren für den durchtritt von lichtbogengasen - Google Patents
Lichtbogenlöschkammer mit drei barrieren für den durchtritt von lichtbogengasen Download PDFInfo
- 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
Links
Images
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)
Description
- die erste Barriere ist durch im doppelten Teilungsmaß der Löschbleche angeordnete, als Widerlager für je ein Löschblech dienende Stege des Kammergehäuses gebildet,
- die zweite Barriere ist gleichfalls durch Stege des Kammergehäuses gebildet, die gegenüber den Stegen der ersten Barriere um das Teilungsmaß der Löschbleche versetzt angeordnet sind und
- die Breite und die Höhe der Stege entsprechen etwa dem Teilungsmaß der Löschbleche.
Claims (8)
- Lichtbogenlöschkammer (1) für einen Leistungsschalter mit einem Kammergehäuse (6), in dem Kammergehäuse (6) angeordneten Lichtbogenleitschienen (11, 12) und mit in gegenseitigem Abstand abgestützten Löschblechen (10) sowie mit einer oberhalb der Löschbleche (10) angeordneten, drei Barrieren umfassenden Kühlanordnung für austretende Lichtbogengase, wobei die erste Barriere (20) unmittelbar oberhalb der Löschbleche (10) und die zweite Barriere (22) im Abstand von der ersten Barriere (20) angeordnet ist und wobei die erste und die zweite Barriere (20, 22) parallel zu Stirnflächen (14) der Löschbleche (10) gerichtete Durchtrittsöffnungen besitzen, ferner mit einer an die zweite Barriere (22) anschließenden, nach außen durch die mit Austrittsöffnungen (26) versehene dritte Barriere (24) abgeschlossenen Kühlkammer (25),
gekennzeichnet durch folgende Merkmale:die erste Barriere (20) ist durch im doppelten Teilungsmaß (t) der Löschbleche (10) angeordnete, als Widerlager für je ein Löschblech (10) dienende Stege (15) des Kammergehäuses (6) gebildet,die zweite Barriere (22) ist gleichfalls durch Stege (21) des Kammergehäuses (6) gebildet, die gegenüber den Stegen (15) der ersten Barriere (20) um das Teilungsmaß der Löschbleche (10) versetzt angeordnet sind unddie Breite (b) und die Höhe (h) der Stege (15, 21) entsprechen etwa dem Teilungsmaß (t) der Löschbleche (10). - Lichtbogenlöschkammer nach Anspruch 1,
dadurch gekennzeichnet, daß jeweils eine Lichtbogenleitschiene (11, 12) und das anschließende Löschblech (10) von einem Endsteg (16, 17) überdeckt werden, derart, daß Lichtbogengase in die zwischen der zweiten und der dritten Barriere (22, 24) befindliche Kühlkammer (25) nur entlang den Stegen (21) der zweiten Barriere (22) eintreten können. - Lichtbogenlöschkammer nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Stege (15, 21) der ersten Barriere (20) und der zweiten Barriere (20, 22) eine etwa quadratische Querschnittsform aufweisen und daß der Abstand (d) zwischen den Barrieren (20, 22) das 0,1 bis 0,5-fache der Höhe (h) der Stege (15, 21) beträgt. - Lichtbogenlöschkammer nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, daß bei Unterteilung des Kammergehäuses (6) in einen die Löschbleche aufnehmenden Schachtkörper (7) und einen den Schachtkörper (6) oben abschließenden Endkörper (8) die erste, die zweite und die dritte Barriere (20, 22, 24) Bestandteil des Endkörpers (8) sind. - Lichtbogenlöschkammer nach Anspruch 4,
dadurch gekennzeichnet, daß die Stege (15) der ersten Barriere (20) durch einen randseitigen Quersteg (27) verbunden sind, der ein Widerlager für jedes zweite, nicht an einem der Stege (15) der ersten Barriere (20) anliegendes Löschblech (10) bildet. - Lichtbogenlöschkammer nach Anspruch 4 oder 5,
dadurch gekennzeichnet, daß die Austrittsöffnungen (26) der dritten Barriere (24) schlitzartig ausgebildet und parallel zu den Stegen (15, 21) der ersten und der zweiten Barriere (20, 22), jedoch gegenüber diesen versetzt, in einer Stirnwand (23) des Endkörpers (8) angeordnet sind. - Lichtbogenlöschkammer nach Anspruch 6,
dadurch gekennzeichnet, daß die Austrittsöffnungen (26) in einer gegenüber den Stegen (15, 21) der ersten und der zweiten Barriere (20, 22) abweichenden Teilung angeordnet sind. - Lichtbogenlöschkammer nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet, daß der Endkörper (8) als einheitlicher Hohlkörper aus einem duroplastischen Kunststoff hergestellt ist.
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 (de) | 1994-03-21 | 1995-03-10 | Lichtbogenlöschkammer mit drei barrieren für den durchtritt von lichtbogengasen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0752153A1 EP0752153A1 (de) | 1997-01-08 |
EP0752153B1 true EP0752153B1 (de) | 1998-08-12 |
EP0752153B2 EP0752153B2 (de) | 2002-09-25 |
Family
ID=6513662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95913022A Expired - Lifetime EP0752153B2 (de) | 1994-03-21 | 1995-03-10 | Lichtbogenlöschkammer mit drei barrieren für den durchtritt von lichtbogengasen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5756951A (de) |
EP (1) | EP0752153B2 (de) |
JP (1) | JPH09510574A (de) |
DE (2) | DE4410108C2 (de) |
WO (1) | WO1995026033A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
FR2823904B1 (fr) * | 2001-04-19 | 2003-06-06 | Schneider Electric Ind Sa | Diffuseur monobloc pour un appareillage electrique de coupure |
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 (ja) * | 2019-06-26 | 2020-12-30 | 三菱電機株式会社 | 気中遮断器 |
Family Cites Families (19)
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US2310728A (en) * | 1941-09-04 | 1943-02-09 | Gen Electric | Electric circuit breaker |
US2445190A (en) * | 1944-12-20 | 1948-07-13 | Gen Electric | Electric circuit breaker |
DE1021054B (de) * | 1954-05-11 | 1957-12-19 | Siemens Ag | Schaltkammer fuer elektrische Schaltgeraete |
US3005892A (en) * | 1957-03-19 | 1961-10-24 | Ite Circuit Breaker Ltd | Arc chute design for circuit breakers |
DE1238538B (de) * | 1963-07-19 | 1967-04-13 | Licentia Gmbh | Loeschblechanordnung fuer Schaltgeraete, insbesondere fuer Installationsselbstschalter |
US3440378A (en) * | 1966-04-05 | 1969-04-22 | Gen Electric | Metal plate type of arc-extinguishing device |
DE2133926A1 (de) * | 1971-07-07 | 1973-01-18 | Allis Chalmers Mfg Co | Funkenkammer fuer luft-leistungsschalter |
US3621169A (en) * | 1970-04-20 | 1971-11-16 | Gen Electric | Electric circuit interrupter with novel arc gas discharge muffle assembly |
FR2451097A1 (fr) * | 1979-02-07 | 1980-10-03 | Terasaki Denki Sangyo Kk | Interrupteur de circuit electrique a air, mecanisme et boitier |
GB2042263B (en) * | 1979-02-08 | 1983-10-19 | Terasaki Denki Sangyo Kk | Circuit interrupters |
SU851517A1 (ru) * | 1979-10-04 | 1981-07-30 | Предприятие П/Я А-7676 | Дугогасительна камера |
US4511773A (en) * | 1982-05-27 | 1985-04-16 | General Electric Company | Molding composition for arc circuit breakers |
GB8302615D0 (en) * | 1983-01-31 | 1983-03-02 | Whipp And Bourne 1975 Ltd | Arc splitter plates |
JPS6093230U (ja) * | 1983-12-01 | 1985-06-25 | 三菱電機株式会社 | 電磁接触器 |
FR2589624B1 (fr) † | 1985-10-31 | 1989-03-10 | Merlin Gerin | Disjoncteur electrique multipolaire a boitier isolant moule |
DE3541514A1 (de) * | 1985-11-21 | 1987-05-27 | Siemens Ag | Lichtbogenloeschkammer mit einem aufsatz zur weiteren abkuehlung austretender gase |
US4876424A (en) * | 1988-09-19 | 1989-10-24 | Siemens Energy & Automation, Inc. | Barrier with a venting scheme for a circuit breaker |
SU1756962A1 (ru) * | 1990-04-10 | 1992-08-23 | Ленинградское Производственное Электромашиностроительное Объединение "Электросила" Им.С.М.Кирова | Дугогасительное устройство многополюсного выключател |
DE9115905U1 (de) † | 1991-12-21 | 1993-04-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Leitungsschutzschalter mit einer Lichtbogenkammer |
-
1994
- 1994-03-21 DE DE4410108A patent/DE4410108C2/de not_active Expired - Fee Related
-
1995
- 1995-03-10 JP JP7524290A patent/JPH09510574A/ja active Pending
- 1995-03-10 EP EP95913022A patent/EP0752153B2/de not_active Expired - Lifetime
- 1995-03-10 DE DE59503170T patent/DE59503170D1/de not_active Expired - Lifetime
- 1995-03-10 WO PCT/DE1995/000347 patent/WO1995026033A1/de active IP Right Grant
- 1995-03-10 US US08/714,158 patent/US5756951A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1995026033A1 (de) | 1995-09-28 |
DE59503170D1 (de) | 1998-09-17 |
US5756951A (en) | 1998-05-26 |
DE4410108C2 (de) | 1996-08-22 |
JPH09510574A (ja) | 1997-10-21 |
EP0752153A1 (de) | 1997-01-08 |
EP0752153B2 (de) | 2002-09-25 |
DE4410108A1 (de) | 1995-09-28 |
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