EP0617836B1 - Automatic cutout with an arc extinguishing chamber - Google Patents
Automatic cutout with an arc extinguishing chamber Download PDFInfo
- Publication number
- EP0617836B1 EP0617836B1 EP92923693A EP92923693A EP0617836B1 EP 0617836 B1 EP0617836 B1 EP 0617836B1 EP 92923693 A EP92923693 A EP 92923693A EP 92923693 A EP92923693 A EP 92923693A EP 0617836 B1 EP0617836 B1 EP 0617836B1
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- EP
- European Patent Office
- Prior art keywords
- walls
- blow
- chamber
- housing
- arc
- 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
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-
- 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 a circuit breaker with an arc chamber arranged within its housing and receiving an arc stack, which passes behind a slotted partition into an outwardly open blow-out chamber which in turn has integrally formed walls on two half-shells of the housing transverse to the main flow direction.
- Circuit breakers with such an arc chamber are known (DE-A-1 238 538, DE-A-29 49 012).
- the partition wall which is arranged directly behind the extinguishing plates and which lies closely against the end edges thereof is provided with slots which are each recessed in the gap between two extinguishing plates.
- an extinguishing and expansion chamber is known from FR-A-1 417 232, which is arranged in an arc around a contact point.
- a number of metal plates are inserted into the chamber in a radial shape and held between two insulating material cheeks. Behind it, several walls on the insulating material cheeks are staggered at a distance from the end edges of the metal plates, which considerably lengthen the flow path for the arc gases from the metal plates to an exit window.
- the arc gases can expand well and their energy content is reduced, but there is an increased risk of arcing at the front edges of the metal plates.
- Such a quenching and expansion chamber is therefore also of limited use for circuit breakers with high switching capacities.
- the invention has for its object to design the arc chamber in the blow-out area with the lowest possible additional costs so that the emission of conductive, hot arc gases is significantly reduced in a circuit breaker of the type mentioned, so that even with high switching power a flame escapes from the housing to exclude.
- the invention is advantageous insofar as the arc gases on their way from the stack of quenching plates to the outside have to flow around several walls which alternate in an alternating manner, rising from the bottom of the half-shells in the blow-out chamber at least up to the middle of the housing, and because of the longer flow path and the larger vets Surface can be cooled considerably better. In addition, they are swirled by comb-like protruding pins on the tops of the walls so that their degree of ionization is reduced. In a preferred embodiment of the invention, the arc gases still escaping are then directed into different directional angles by means of blow-out nozzles, so that a concentrated jet does not emerge in one direction, but rather a strong scattering of the arc gases takes place.
- the solution according to the invention results in a strong reduction of the escaping arcing gases with little effort - and this without any significant impairment of the arcing speed in the actual arcing chamber.
- the remaining, low emission of conductive arcing gases practically excludes the risk of arcing over live parts in the vicinity of the circuit breaker.
- the simplified circuit breaker shown in narrow construction has a housing 1 made of insulating material, which is composed of two half-shells 1a, 1b, which in turn spatially enclose switching and triggering mechanisms, not shown, and the associated connection means.
- an arc chamber 2 is arranged in the base region of the housing, which is largely filled by a stack of quenching plates 3.
- the individual quenching plates 3a are included their left-hand end edges on a partition 2a, which is formed on the housing and separates the arc chamber 2 from a blow-out chamber 4.
- a plurality of slots 2b are each cut out in the partition between the individual quenching plates, so that arcing gases which arise during the shutdown process can escape through the slots into the blow-out chamber 4.
- the switching arc which arises at a merely indicated contact point 5, in particular in the event of a short-circuit shutdown, runs in a known manner with its base points on arc guide rails 3b into the stack of quenching sheets and is extinguished there.
- the ionized arc gases escaping under high pressure through the slots 2b flow around a plurality of alternating interlocking walls 4a on their way through the blow-out chamber 4 - as is particularly indicated in FIG. 2 - before they reach the outside through a blow-out opening 4b.
- the walls are each molded directly onto the two half-shells 1a, 1b of the housing, which preferably consists of a thermoset.
- the walls are provided with a plurality of comb-like protruding pins 4 a ', which, in conjunction with the incisions located between them, ensure a strong swirling of the arc gases.
- These are also additionally cooled by the larger wall surfaces before they flow outside through the blow-out opening 4b.
- the walls 4a each rise from the base of the half-shells at least to the middle and are not too far apart, as can be seen in particular from FIG. 2. Depending on the available space, three or four walls can be arranged below the terminal area 1c. In addition, the distances between the individual walls 4a and also the size and arrangement of the pins 4a 'are chosen so that despite high arc cooling and only a low emission of conductive arc gases, the running speed of the arc from the contact point 5 into the arc stack 3 is not impaired.
- the basic shape shown in FIGS. 1 to 3 can be further optimized with the essential features of the blow-out chamber according to the invention, as shown in the exemplary embodiment according to FIGS. 4 to 6.
- the blow-out chamber 4 'shown in FIG. 4 only as a section of the circuit breaker has a plurality of blow-out nozzles 4 c behind the walls 4 a instead of a blow-out opening. These are arranged on both sides of the parting line between the two half-shells 1a, 1b and are offset in such a meandering manner that the actual openings in the outer side wall 1d are alternately left blank (FIG. 5). In addition, the blow-out nozzles are not formed in the side wall 1d at right angles, but rather at an angle of approximately 45 ° to the direction of the walls 4a.
- blow-out nozzles 4c in the two half-shells are mutually offset by approximately 90 °, as can be seen from FIGS. 4 and 6. Due to this different direction of the blow-out nozzles there is a strong scattering of the ultimately emerging arc gases, so that a risk of overturning to live parts located in the vicinity of the circuit breaker is avoided.
- the blow-out chamber can be divided into two equally large half-spaces by a partially inclined rib 4d.
- the rib 4d is positioned approximately in the middle of the partition wall 2a and extends at the same oblique angle as the individual slots 2b. This achieves good guidance of the arc gases flowing out at an angle from the arc chamber into the blow-out chamber and prevents the tendency to re-ignition directly behind the extinguishing plates.
- the rib 4d is just like that Walls 4a and the other elements of the blow-out chamber each form part of the two half-shells of the housing and thus represent a cost-neutral solution.
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- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Die Erfindung betrifft einen Leitungsschutzschalter mit einer innerhalb seines Gehäuses angeordneten, einen Löschblechstapel aufnehmenden Lichtbogenkammer, die hinter einer mit Schlitzen versehenen Trennwand in eine nach außen hin offene Ausblaskammer übergeht, die ihrerseits an zwei Halbschalen des Gehäuses quer zur Hauptströmungsrichtung angeformte Wände aufweist.The invention relates to a circuit breaker with an arc chamber arranged within its housing and receiving an arc stack, which passes behind a slotted partition into an outwardly open blow-out chamber which in turn has integrally formed walls on two half-shells of the housing transverse to the main flow direction.
Leitungsschutzschalter mit einer solchen Lichtbogenkammer sind bekannt (DE-A-1 238 538, DE-A-29 49 012). Dabei ist die unmittelbar hinter den Löschblechen angeordnete, eng an deren Stirnkanten anliegende Trennwand mit Schlitzen versehen, die jeweils in der Lücke zwischen zwei Löschblechen ausgespart sind. So können die bei einer Kurzschluß-Abschaltung explosionsartig mit hohem Druck entstehenden Lichtbogengase durch die Trennwand in eine dahinter befindliche Ausblaskammer gelangen, in der sie meist von einer Querwand umgelenkt werden, bevor sie schließlich über eine Wandöffnung nach außen entweichen. Bei modernen Leitungsschutzschaltern mit ihren hohen Schaltleistungen haben allerdings die austretenden Lichtbogengase oftmals noch solch einen großen Energieinhalt, daß die Gefahr des Flammenaustritts im Bereich des Gehäusesockels besteht.Circuit breakers with such an arc chamber are known (DE-A-1 238 538, DE-A-29 49 012). In this case, the partition wall which is arranged directly behind the extinguishing plates and which lies closely against the end edges thereof is provided with slots which are each recessed in the gap between two extinguishing plates. Thus, when a short-circuit is switched off, arcing gases, which develop explosively at high pressure, can pass through the partition wall into a blow-out chamber located behind them, in which they are usually deflected by a transverse wall before they finally escape to the outside through a wall opening. In modern circuit breakers with their high switching capacities, however, the escaping arc gases often still have such a large energy content that there is a risk of flame escaping in the area of the housing base.
Um die damit verbundenen nachteiligen Folgen auf benachbarte Betriebsmittel zu verhindern, ist in der DE-A-37 05 216 ein besonders gestalteter Schaltgasableitkanal vorgeschlagen worden. Dieser ist in einen an das Löschblechpaket angrenzenden Expansionsraum sowie in diesem nachgeschaltete Strömungskanäle, einen weiteren Expansionsraum und einen Auslaßkanal unterteilt. Bei dieser Anordnung besteht hinter den Löschblechen eine erhebliche Rückzündungsgefahr, sofern nicht am Löschblechpaket selbst noch zusätzliche Maßnahmen orgriffen werden. Außerdem ist ein besonderes, die Auslaßkanäle bildendes Abdeckteil aus Löschgas abgebendem Material vorgesehen, welches den Leitungsschutzschalter ergänzt und in einem separaten Arbeitsgang von außen am Gehäuse befestigt werden muß. Ein solches Extrateil bedeutet für ein in Großserie hergestelltes Schaltgerät einen nicht unerheblichen Mehraufwand.In order to prevent the associated adverse consequences on neighboring equipment, a specially designed switching gas discharge duct has been proposed in DE-A-37 05 216. This is subdivided into an expansion space adjoining the quenching plate stack and flow channels connected downstream, a further expansion space and an outlet channel. In this arrangement there is a behind the quenching plates Significant risk of reignition, unless additional measures are taken on the fire-extinguishing sheet package itself. In addition, a special, the outlet channels covering part made of extinguishing gas-emitting material is provided, which complements the circuit breaker and must be attached to the housing from the outside in a separate operation. Such an extra part means a not inconsiderable additional effort for a switchgear manufactured in large series.
Desweiteren ist aus der FR-A-1 417 232 eine Lösch- und Ausdehnungskammer bekannt, die bogenförmig um eine Kontaktstelle angeordnet ist. In die Kammer sind etliche Metallplatten strahlenförmig eingelegt und zwischen zwei Isolierstoffwangen gehalten. Dahinter sind mit Abstand zu den Stirnkanten der Metallplatten mehrere Wände an den Isolierstoffwangen labyrinthartig versetzt angeordnet, die den Strömungsweg für die Lichtbogengase von den Metallplatten bis zu einem Austrittsfenster erheblich verlängern. Bei dieser Anordnung können sich die Lichtbogengase gut ausdehnen und ihr Energieinhalt wird vermindert, an den Stirnkanten der Metallplatten besteht aber eine erhöhte Gefahr für Lichtbogenüberschläge. Eine derartig ausgebildete Lösch- und Ausdehnungskammer ist daher für Leitungsschutzschalter mit hohen Schaltleistungen ebenfalls nur bedingt geeignet.Furthermore, an extinguishing and expansion chamber is known from FR-A-1 417 232, which is arranged in an arc around a contact point. A number of metal plates are inserted into the chamber in a radial shape and held between two insulating material cheeks. Behind it, several walls on the insulating material cheeks are staggered at a distance from the end edges of the metal plates, which considerably lengthen the flow path for the arc gases from the metal plates to an exit window. With this arrangement, the arc gases can expand well and their energy content is reduced, but there is an increased risk of arcing at the front edges of the metal plates. Such a quenching and expansion chamber is therefore also of limited use for circuit breakers with high switching capacities.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Leitungsschutzschalter der eingangs genannten Art die Lichtbogenkammer im Ausblasbereich mit möglichst geringen Zusatzkosten so zu gestalten, daß der Ausstoß von leitenden, heißen Lichtbogengasen erheblich vermindert wird, um so auch bei hoher Schaltleistung einen Flammenaustritt aus dem Gehäuse weitgehend auszuschließen.The invention has for its object to design the arc chamber in the blow-out area with the lowest possible additional costs so that the emission of conductive, hot arc gases is significantly reduced in a circuit breaker of the type mentioned, so that even with high switching power a flame escapes from the housing to exclude.
Diese Aufgabe wird durch einen Leitungsschutzschalter mit den Merkmalen des Anspruchs 1 gelöst. Weiterbildungen und vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a circuit breaker with the features of
Die Erfindung ist insofern vorteilhaft, als die Lichtbogengase auf ihrem Weg vom Löschblechstapel ins Freie mehrere in der Ausblaskammer jeweils vom Grund der Halbschalen zumindest bis über die Mitte des Gehäuses aufsteigende, im Wechsel versetzt angeordnete Wände umströmen müssen und dabei aufgrund des längeren Strömungsweges sowie der vetgrößerten Oberfläche erheblich besser gekühlt werden. Außerdem werden sie durch kammartig vorstehende Zapfen auf den Oberseiten der Wände zusätzlich so verwirbelt, daß dadurch ihr Ionisationsgrad verringert wird. Bei einer bevorzugten Ausgestaltung der Erfindung werden die noch austretenden Lichtbogengase sodann durch Ausblasdüsen in unterschiedliche Richtungswinkel gelenkt, damit kein konzentrierter Strahl in einer Richtung austritt, sondern vielmehr eine starke Streuung der Lichtbogengase erfolgt. Da die Ausblaskammer beim Pressen der Gehäuseteile sich praktisch kostenneutral mit herstellen läßt, ergibt die erfindungsgemäße Lösung mit geringem Aufwand eine starke Reduzierung der austretenden Lichtbogengase - und dies ohne wesentliche Beeinträchtigung der Lichtbogenlaufgeschwindigkeit in der eigentlichen Lichtbogenkammer. Der letztlich noch verbleibende, geringe Ausstoß leitender Lichtbogengase schließt eine überschlagsgefahr zu in der Nähe des Leitungsschutzschalters befindlichen spannungsführenden Teilen praktisch aus.The invention is advantageous insofar as the arc gases on their way from the stack of quenching plates to the outside have to flow around several walls which alternate in an alternating manner, rising from the bottom of the half-shells in the blow-out chamber at least up to the middle of the housing, and because of the longer flow path and the larger vets Surface can be cooled considerably better. In addition, they are swirled by comb-like protruding pins on the tops of the walls so that their degree of ionization is reduced. In a preferred embodiment of the invention, the arc gases still escaping are then directed into different directional angles by means of blow-out nozzles, so that a concentrated jet does not emerge in one direction, but rather a strong scattering of the arc gases takes place. Because the blow-out chamber when pressing the housing parts can be produced in a practically cost-neutral manner, the solution according to the invention results in a strong reduction of the escaping arcing gases with little effort - and this without any significant impairment of the arcing speed in the actual arcing chamber. The remaining, low emission of conductive arcing gases practically excludes the risk of arcing over live parts in the vicinity of the circuit breaker.
Anhand der Zeichnung ist die Erfindung nachstehend näher erläutert.The invention is explained in more detail below with reference to the drawing.
Es zeigt
- Fig. 1
- einen Leitungsschutzschalter in einer vereinfachten Ansicht mit teilweise geöffnetem Gehäuse bzw. einem Teilschnitt im Bereich von Lichtbogenkammer und Ausblaskammer gemäß der Linie I - I (Fig. 2),
- Fig. 2
- einen Teilschnitt gemäß der Linie II - II (Fig. 1),
- Fig. 3
- einen Teilschnitt gemäß der Linie III - III (Fig. 1);
- Fig. 4
- schematisch eine besondere Ausgestaltung der Ausblaskammer in einer Teilansicht, vergleichbar mit Fig. 1 gemäß der Schnittlinie IV - IV (Fig. 5),
- Fig. 5
- eine Ansicht auf die Seitenwand aus Richtung des Pfeiles V (Fig. 4),
- Fig. 6
- einen Schnitt gemäß der Linie VI - VI (Fig. 5).
- Fig. 1
- a circuit breaker in a simplified view with a partially open housing or a partial section in the area of the arc chamber and blow-out chamber according to the line I - I (Fig. 2),
- Fig. 2
- a partial section along the line II - II (Fig. 1),
- Fig. 3
- a partial section along the line III - III (Fig. 1);
- Fig. 4
- schematically a special embodiment of the blow-out chamber in a partial view, comparable to FIG. 1 along the section line IV - IV (FIG. 5),
- Fig. 5
- a view of the side wall from the direction of arrow V (Fig. 4),
- Fig. 6
- a section along the line VI - VI (Fig. 5).
Der vereinfacht dargestellte Leitungsschutzschalter in Schmalbauweise hat ein aus Isolierstoff hergestelltes Gehäuse 1 , welches aus zwei Halbschalen 1a, 1b zusammengesetzt ist, die ihrerseits nicht gezeigte Schalt- und Auslösemechanismen sowie die zugehörigen Anschlußmittel räumlich umschließen. Des weiteren ist im Sockelbereich des Gehäuses eine Lichtbogenkammer 2 angeordnet, die größtenteils von einem Löschblechstapel 3 ausgefüllt ist. Die einzelnen Löschbleche 3a liegen dabei mit ihren linksseitigen Stirnkanten an einer Trennwand 2a an, die am Gehäuse ausgebildet ist und die Lichtbogenkammer 2 von einer Ausblaskammer 4 trennt. In der Trennwand sind mehrere Schlitze 2b jeweils zwischen den einzelnen Löschblechen ausgespart, so daß beim Abschaltvorgang entstehende Lichtbogengase durch die Schlitze hindurch in die Ausblaskammer 4 entweichen können. Hingegen läuft der an einer lediglich angedeuteten Kontaktstelle 5 insbesondere bei einer Kurzschluß-Abschaltung entstehende Schaltlichtbogen auf bekannte Art mit seinen Fußpunkten auf Lichtbogenlaufschienen 3b in den Löschblechstapel ein und wird dort gelöscht.The simplified circuit breaker shown in narrow construction has a
Die unter hohem Druck durch die Schlitze 2b entweichenden ionisierten Lichtbogengase umströmen auf ihrem Weg durch die Ausblaskammer 4 mehrere, im Wechsel versetzt ineinandergreifende Wände 4a - wie besonders in Fig. 2 angedeutet ist - bevor sie durch eine Ausblasöffnung 4b ins Freie gelangen. Die Wände sind jeweils an den beiden Halbschalen 1a, 1b des Gehäuses direkt angeformt, welches vorzugsweise aus einem Duroplast besteht. Auf ihren jeweils zueinanderweisenden Oberseiten sind die Wände mit einer Vielzahl von kammartig vorstehenden Zapfen 4a′ versehen, die in Verbindung mit den jeweils dazwischen befindlichen Einschnitten für eine kräftige Verwirbelung der Lichtbogengase sorgen. Diese werden außerdem durch die größeren Wandoberflächen zusätzlich gekühlt, bevor sie durch die Ausblasöffnung 4b ins Freie strömen. Die Wände 4a steigen jeweils vom Grund der Halbschalen zumindest bis über die Mitte auf und haben keinen allzu großen gegenseitigen Abstand, wie insbesondere aus Fig. 2 ersichtlich ist. Dabei können drei oder vier Wände je nach dem vorhandenen Platz unterhalb des Klemmenbereiches 1c angeordnet sein. Daneben sind die Abstände zwischen den einzelnen Wänden 4a und auch die Größe und Anordnung der Zapfen 4a′ so gewählt, daß trotz hoher Lichtbogenkühlung und eines lediglich geringen Ausstoßes von leitenden Lichtbogengasen die Laufgeschwindigkeit des Lichtbogens von der Kontaktstelle 5 in das Löschblechpaket 3 nicht beeinträchtigt wird. Dabei kann die in den Fig. 1 bis 3 gezeigte Grundform mit den wesentlichen erfindungsgemäßen Merkmalen der Ausblaskammer noch optimiert werden, wie es im Ausführungsbeispiel nach Fig. 4 bis 6 dargestellt ist.The ionized arc gases escaping under high pressure through the
Die in Fig. 4 nur als Ausschnitt des Leitungsschutzschalters gezeigte Ausblaskammer 4′ hat dabei hinter den Wänden 4a statt einer Ausblasöffnung eine Vielzahl von Ausblasdüsen 4c . Diese sind beiderseits der Trennfuge zwischen den beiden Halbschalen 1a, 1b angeordnet und zwar derart mäanderförmig versetzt, daß die eigentlichen öffnungen in der äußeren Seitenwand 1d jeweils im Wechsel ausgespart sind (Fig. 5). Zusätzlich sind die Ausblasdüsen in der Seitenwand 1d nicht rechtwinklig eingeformt, sondern jeweils unter einem Winkel von etwa 45° schräg zur Richtung der Wände 4a . Zugleich sind die Ausblasdüsen 4c in den beiden Halbschalen gegenseitig etwa um 90° versetzt, wie aus Fig. 4 bzw. Fig. 6 hervorgeht. Durch diese unterschiedliche Richtung der Ausblasdüsen erfolgt eine starke Streuung der letztlich noch austretenden Lichtbogengase, so daß eine überschlagsgefahr zu in der Nähe des Leitungsschutzschalters befindlichen spannungsführenden Teilen vermieden wird.The blow-out chamber 4 'shown in FIG. 4 only as a section of the circuit breaker has a plurality of blow-out nozzles 4 c behind the walls 4 a instead of a blow-out opening. These are arranged on both sides of the parting line between the two half-
Des weiteren kann die Ausblaskammer durch eine teilweise schräg verlaufende Rippe 4d etwa in zwei gleich große Halbräume unterteilt sein. Wie insbesondere die Fig. 1 zeigt, ist die Rippe 4d etwa in der Mitte der Trennwand 2a angesetzt und verläuft unter dem gleichen schrägen Winkel wie die einzelnen Schlitze 2b . Damit wird eine gute Führung der schräg aus der Lichtbogenkammer ausströmenden Lichtbogengase in die Ausblaskammer erreicht und die Rückzündungsneigung direkt hinter den Löschblechen ausgeschlossen. Die Rippe 4d ist ebenso wie die Wände 4a und die weiteren Elemente der Ausblaskammer jeweils Bestandteil der beiden Halbschalen des Gehäuses und stellt somit eine kostenneutrale Lösung dar.Furthermore, the blow-out chamber can be divided into two equally large half-spaces by a partially inclined rib 4d. As shown in FIG. 1 in particular, the rib 4d is positioned approximately in the middle of the
Claims (6)
- Circuit breaker with an arcing chamber (2), which is arranged within the housing (1) of the circuit breaker, receives a metal quenching plate stack (3) and which behind a partition (2a) provided with slots (2b) passes over into an outwardly open blow-out chamber (4, 4′), which in its turn displays walls (4a) shaped on transversely to the main flow direction at two half shells (1a, 1b) of the housing (1), characterised thereby, that the blow-out chamber (4, 4′) is provided with several walls (4a), which each rise up from the base of the half shells (1a, 1b) to at least over the centre of the housing (1), are arranged displaced in alternation and appreciably prolong the gas flow path and of which at least some display spigots (4a′), which project in comblike manner on their mutually facing upper sides situated about parallelly to the plane of separation of the half shells (1a, 1b) and cause a turbulence and additional cooling of the arc gases.
- Switch according to claim 1, characterised thereby, that the walls (4a) are arranged to be at least partially interengaging at a slight mutual spacing in such a manner that the running speed of the arc from the contact place (5) into the metal quenching plate stack (3) is hardly impaired in spite of high cooling of the arc and low ejection of conductive arc gases.
- Switch according to claim 1 and 2, characterised thereby, that only the walls (4a) of one half shell (1a) display spigots (4a′) on their upper side, whilst the walls (4a) of the opposite half shell (1b) are formed to have a smooth surface.
- Switch according to one of the claims 1 to 3, characterised thereby, that the blow-out chamber (4, 4′) is subdivided into two almost equally large half spaces, which are each separated from the other, by means of a rib (4d), which starts out from about the centre of the partition (2a) and extends in part obliquely to the walls (4a).
- Switch according to one of the claims 1 to 4, characterised thereby, that the blow-out chamber (4′) is provided at its outwardly open side wall (1d) with blow-out nozzles (4c) arranged obliquely to the direction of the walls (4a).
- Switch according to one of the claims 1 to 5, characterised thereby, that the blow-out nozzles (4c) in both the half shells (1a, 1b) display different angles of direction of up to 90° and are arranged to be displaced in meander shape in cross-section.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9115905U DE9115905U1 (en) | 1991-12-21 | 1991-12-21 | Circuit breaker with an arc chamber |
| DE9115905U | 1991-12-21 | ||
| PCT/DE1992/001006 WO1993013538A1 (en) | 1991-12-21 | 1992-12-04 | Automatic cutout with an arc extinguishing chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0617836A1 EP0617836A1 (en) | 1994-10-05 |
| EP0617836B1 true EP0617836B1 (en) | 1995-11-08 |
Family
ID=6874506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92923693A Expired - Lifetime EP0617836B1 (en) | 1991-12-21 | 1992-12-04 | Automatic cutout with an arc extinguishing chamber |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0617836B1 (en) |
| AT (1) | ATE130121T1 (en) |
| CZ (1) | CZ283892B6 (en) |
| DE (2) | DE9115905U1 (en) |
| ES (1) | ES2079898T3 (en) |
| HU (1) | HU213360B (en) |
| PL (1) | PL169428B1 (en) |
| WO (1) | WO1993013538A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002075760A1 (en) * | 2001-03-20 | 2002-09-26 | Moeller Gebäudeautomation KG | Housing for a switching device |
| DE10312820A1 (en) * | 2003-03-22 | 2004-09-30 | Abb Patent Gmbh | Arc quenching plate arrangement for an electrical switch, in particular an electrical circuit breaker |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4326922C1 (en) * | 1993-08-11 | 1994-11-17 | Kloeckner Moeller Gmbh | Arc chamber for electrical switchgear |
| DE4410108C2 (en) † | 1994-03-21 | 1996-08-22 | Siemens Ag | Arc quenching chamber with three barriers for the passage of arc gases |
| AT405112B (en) * | 1997-02-12 | 1999-05-25 | Felten & Guilleaume Ag Oester | OVERVOLTAGE DEVICE |
| US5861596A (en) * | 1997-04-01 | 1999-01-19 | Eaton Corporation | Dual baffle apparatus for electrical switching device |
| FR2823904B1 (en) * | 2001-04-19 | 2003-06-06 | Schneider Electric Ind Sa | MONOBLOCK DIFFUSER FOR ELECTRICAL SWITCHING APPARATUS |
| DE102005015401B4 (en) * | 2005-01-10 | 2014-03-20 | Dehn + Söhne Gmbh + Co. Kg | Surge arrester with two diverging electrodes and a spark gap acting between the electrodes |
| DE102005007301A1 (en) * | 2005-02-17 | 2006-08-24 | Abb Patent Gmbh | Electrical installation device, e.g. for use with line safety switch, has exhaust opening at broader side of housing wall to discharge gas escaping from arc extinguisher, and baffle preventing re-entering of gas into arc antechamber |
| DE102014002902B4 (en) | 2014-02-27 | 2019-08-01 | Schaltbau Gmbh | Extinguishing chamber for a contactor and a contactor for extinguishing electric arcs |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2445190A (en) * | 1944-12-20 | 1948-07-13 | Gen Electric | Electric circuit breaker |
| US2942086A (en) * | 1957-03-06 | 1960-06-21 | Allis Chalmers Mfg Co | Chimney cooler for air circuit breakers |
| US3005892A (en) * | 1957-03-19 | 1961-10-24 | Ite Circuit Breaker Ltd | Arc chute design for circuit breakers |
| FR1417232A (en) * | 1964-09-25 | 1965-11-12 | Cem Comp Electro Mec | Arc extinguisher cage for DC and AC switching devices |
| FR1480661A (en) * | 1965-05-21 | 1967-08-07 | ||
| US3621169A (en) * | 1970-04-20 | 1971-11-16 | Gen Electric | Electric circuit interrupter with novel arc gas discharge muffle assembly |
| DE7607341U1 (en) * | 1976-03-10 | 1976-08-12 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Circuit breaker |
| US4075446A (en) * | 1976-07-15 | 1978-02-21 | Heinemann Electric Company | Circuit breaker arc venting screen |
| DE7924748U1 (en) * | 1979-08-31 | 1980-11-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Housing for line-up installation devices |
| DE2949012C2 (en) * | 1979-12-06 | 1984-03-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Arc chamber of a circuit breaker |
| DE3307062C2 (en) * | 1983-03-01 | 1985-06-20 | Christian Geyer GmbH & Co, 8500 Nürnberg | Arc chamber |
| DE3440212A1 (en) * | 1984-10-10 | 1986-04-17 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | EXHAUST GAS SWITCH |
| FR2575861B1 (en) * | 1985-01-07 | 1987-01-16 | Merlin Gerin | MINIATURE ELECTRIC CIRCUIT BREAKER WITH ARC FORMING CHAMBER |
| DE3541514A1 (en) * | 1985-11-21 | 1987-05-27 | Siemens Ag | Arc extinguishing chamber having an attachment for further cooling of emerging gases |
| DE3619241C2 (en) * | 1986-06-07 | 1994-07-21 | Kloeckner Moeller Gmbh | Extinguishing device for a circuit breaker |
| DE3705216A1 (en) * | 1987-02-19 | 1988-09-01 | Geyer Gmbh & Co Christian | Electrical line protection circuit breaker |
-
1991
- 1991-12-21 DE DE9115905U patent/DE9115905U1/en not_active Expired - Lifetime
-
1992
- 1992-12-04 EP EP92923693A patent/EP0617836B1/en not_active Expired - Lifetime
- 1992-12-04 DE DE59204283T patent/DE59204283D1/en not_active Expired - Fee Related
- 1992-12-04 HU HU9401476A patent/HU213360B/en not_active IP Right Cessation
- 1992-12-04 CZ CZ941516A patent/CZ283892B6/en not_active IP Right Cessation
- 1992-12-04 ES ES92923693T patent/ES2079898T3/en not_active Expired - Lifetime
- 1992-12-04 PL PL92304168A patent/PL169428B1/en not_active IP Right Cessation
- 1992-12-04 AT AT92923693T patent/ATE130121T1/en not_active IP Right Cessation
- 1992-12-04 WO PCT/DE1992/001006 patent/WO1993013538A1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002075760A1 (en) * | 2001-03-20 | 2002-09-26 | Moeller Gebäudeautomation KG | Housing for a switching device |
| DE10291133B4 (en) * | 2001-03-20 | 2011-10-20 | Moeller Gebäudeautomation KG | Housing for a switching device |
| DE10312820A1 (en) * | 2003-03-22 | 2004-09-30 | Abb Patent Gmbh | Arc quenching plate arrangement for an electrical switch, in particular an electrical circuit breaker |
| DE10312820B4 (en) * | 2003-03-22 | 2012-04-19 | Abb Ag | Arc quenching plate assembly for an electrical switch, in particular an electrical circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59204283D1 (en) | 1995-12-14 |
| HU213360B (en) | 1997-05-28 |
| WO1993013538A1 (en) | 1993-07-08 |
| ES2079898T3 (en) | 1996-01-16 |
| EP0617836A1 (en) | 1994-10-05 |
| PL169428B1 (en) | 1996-07-31 |
| DE9115905U1 (en) | 1993-04-22 |
| HU9401476D0 (en) | 1994-08-29 |
| ATE130121T1 (en) | 1995-11-15 |
| HUT67986A (en) | 1995-05-29 |
| CZ151694A3 (en) | 1994-11-16 |
| CZ283892B6 (en) | 1998-07-15 |
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