EP2109130A1 - Arc welding anti-surge sheet metal assembly for an electrical switch - Google Patents
Arc welding anti-surge sheet metal assembly for an electrical switch Download PDFInfo
- Publication number
- EP2109130A1 EP2109130A1 EP09003797A EP09003797A EP2109130A1 EP 2109130 A1 EP2109130 A1 EP 2109130A1 EP 09003797 A EP09003797 A EP 09003797A EP 09003797 A EP09003797 A EP 09003797A EP 2109130 A1 EP2109130 A1 EP 2109130A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arc
- insulating material
- coated
- quenching
- region
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- 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
- H01H9/36—Metal parts
Definitions
- the invention relates to an arc extinguishing plate assembly for a service switching device, in particular for a circuit breaker, a motor protection switch or a contactor, with parallel arranged arc quills made of ferromagnetic material having a V-shaped cutout on a narrow side edge, which forms an inlet region for the arc, and At least on one side at least partially coated with insulating material, according to the preamble of claim 1.
- the invention relates to a service switching device with such an arc splitter stack.
- a generic arc extinguisher arrangement also arc splitter stack or Deionblechun finds particular use in a circuit breaker or a motor protection switch or in a contactor by which not only rated currents, but also overcurrents and in particular short-circuit currents are to be turned off.
- the mode of operation is such that an arc arising at a contact point at its opening is guided into the arc splitter stack due to the current forces in which the arc bases formed on the fixed or movable contact pieces are led via arc guide rails into the arc splitter stack, in which the arc is divided into several partial arcs is divided, whereby the arc voltage is increased and the short-circuit current thereby limited.
- Such an arrangement is for example from the DE 103 12 820 known.
- a problem with the movement of the arc or the individual partial arcs within the arc splitter stack is that without further action, the arc at the end of the arc splitter stack or at the side edges can overturn or re-ignite, so that a current limit and a correct short-circuit shutdown are prevented.
- an arc quenching chamber having an arc quenching assembly whose arc quenching plates are coated with a gas or vapor emitting material. This material evaporates under the influence of the arc, which promotes arc quenching. But since the material is consumed, the number of feasible switching operations is limited.
- an arc-quenching arrangement has been disclosed in which individual arc-quenching plates are coated with insulating material at least in the rear section viewed in the direction of the arc running, whereas other quenching plates located between the coated arc-quenching plates are uncoated.
- the coated arc quenching plates are partially coated on both sides.
- the object of the invention is to provide an arc extinguishing plate assembly, which leads to the known arrangements to improve the extinguishing and switching properties, with flashbacks or flashovers outside of the splitter stack prevented by the stabilization of the arc in the focal spot become. A flashover between the sheets is avoided and a local melting of individual sheets is prevented.
- each arc quenching plate there is a region behind the inlet region, seen in the direction of arc travel, which is free of the insulating material, the insulating material completely surrounding the free region (19, 20, 35, 35a).
- an island-like area or an island-like zone is left uncoated on each plate, into which uncoated zone the arc is intended to be guided in a targeted manner and should preferably burn in the area of the uncoated zone. He can oscillate in the uncoated area, and by oscillating a local melting can be prevented.
- a further preferred embodiment of the invention may be that the area not covered by the insulating material is thus coated with a conductive material, which may be silver, for example.
- the insulating coating may have gas or vapor-releasing properties upon arc action; This promotes the current limitation.
- An electrical circuit breaker which is not to be shown here in detail, but whose structure is known as such, has a contact point with a fixed and attached to a contact lever movable contact piece, each associated with arc runners, which run parallel and an arc splitter stack according to the FIGS. 1 to 7 between them. That such a circuit breaker has a switch lock, a toggle, a thermal and electromagnetic release and terminals, a toggle and a mounting option on a hat profile support rail, will not be described here.
- the arc splitter stack is constructed of a plurality of arc quenching plates, which may be formed as in the FIGS. 1 to 3 shown.
- each arc quenching plate 10 of an arc splitter stack has an elongated rectangular shape, wherein in the region of in the Fig. 1 Lower drawn first narrow side edge 11 a symmetrical, V-shaped cutout 12 is introduced, which tapers to the opposite lying second narrow side edge 13, so that the V-shape to the first narrow side edge 11 is open.
- a slot-shaped portion 14 whose side edges 15 and 16 are perpendicular to the narrow side edges 11 and 13; this slot-shaped cutout 14 or slot 14 ends approximately in the third, which is adjacent to the second narrow side edge 13 and connects thereto.
- the arc splitter stack is on both sides with a layer 17 and 18 of insulating material, except for a remaining free portion 19 and 20, in the embodiment according to Fig. 1 circular and arranged in extension of the central axis of the V-shaped cutout 12 and the slot 14, coated.
- Fig. 4 illustrates this with reference to a sectional view along the section line IV-IV of Fig. 1 ,
- the Fig. 5 shows a sectional view along the section line VV of Fig. 1 with three arc quenching plates 10a, 10b and 10c, with insulating material 17a, 18a; 17b, 18b and 17c and 18c are coated.
- the uncoated areas 19a, 20a; 19b, 20b and 19c and 20c are aligned with each other and lie on an axis which is perpendicular to the arc extinguishing plates 10a, 10b, 10c.
- each arc flash plate 30 has at its first narrow side edge 31 a cutout 12 corresponding cutout 32, to which a slot-shaped cutout 33 connects, based on the central axis of the elongated rectangular arc extinguishing plate 30, which central axis perpendicular to the first narrow side edge 31 and a second narrow side edge 34th runs approximately centrally, is angled at an acute angle ⁇ .
- the angle is angled to the right
- the arc splitter plate 30a by 180 ° about the central longitudinal axis MM (see Fig. 2 ) is twisted, so that there is the slot-shaped portion 33a angled to the left.
- This type of arc splitter package construction is mainly used in switching devices for DC voltage.
- the arc splitter differs according to Fig. 2 from the according to Fig. 3 in principle not, it is used in an arc splitter stack, however, each rotated by 180 °.
- the arc extinguishing plates 30 according to Fig. 2 or the arc quenching plates 30a according to Fig. 3 are each installed in one embodiment of an arc splitter stack in this so that the individual slots are parallel to each other.
- the arc extinguishing plates 30 according to Fig. 2 and the arc quenching plate 30a of FIG Fig. 3 are covered by an insulating material, which corresponds to the insulating material or the layers 17, 18.
- an insulating material which corresponds to the insulating material or the layers 17, 18.
- an area 35 or 35a which is uncoated, as the section 19, 20.
- the arc is about the V-shaped cutout 32 in the slot 33rd run in and from there to the area 35, 35a skip and burn stable in this uncoated area.
- FIG. 6 shows the embodiment of the arc splitter stack from above
- Fig. 7 shows a sectional view of this arc splitter stack according to the section line VII-VII of Fig. 6
- arc extinguishing plates 30, 30a according to the FIGS. 2 and 3 arranged one above the other.
- the slot 33 (or recess 33) of the arc quenching plates 30 is shown in the drawing Fig. 6 drawn dashed, whereas the slot 33a, or the slot-shaped recess 33a, the arc quenching plates 30a is shown drawn through.
- At the arc quenching plates 30 is the remaining area 35 offset relative to the remaining area 35 a of the arc-quenching plates 30 a each offset, as shown in FIG Fig. 6 and Fig. 7 ,
- the remaining sections 19, 20; 35, 35a to be coated with electrically conductive materials in which silver is applied in these areas;
- electrically conductive materials in which silver is applied in these areas;
- a composite material which is likewise electrically conductive, although less conductive than, for example, a silver layer.
- the insulating coating can be a gas-releasing material which is also known per se.
- the insulating coating can be a gas-releasing material which is also known per se.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Die Erfindung betrifft eine Lichtbogenlöschblechanordnung für ein Installationsschaltgerät, insbesondere für einen Leitungsschutzschalter, einen Motorschutzschalter oder ein Schütz, mit parallel zueinander angeordneten Lichtbogenlöschblechen aus ferromagnetischem Material, die an einer Schmalseitenkante einen V-förmigen Ausschnitt aufweisen, der einen Einlaufbereich für den Lichtbogen bildet, und die wenigstens einseitig wenigstens teilweise mit isolierenden Material beschichtet sind, gemäß dem Oberbegriff des Anspruches 1.The invention relates to an arc extinguishing plate assembly for a service switching device, in particular for a circuit breaker, a motor protection switch or a contactor, with parallel arranged arc quills made of ferromagnetic material having a V-shaped cutout on a narrow side edge, which forms an inlet region for the arc, and At least on one side at least partially coated with insulating material, according to the preamble of claim 1.
Darüber hinaus betrifft die Erfindung ein Installationsschaltgerät mit einem solchen Lichtbogenlöschblechpaket.Moreover, the invention relates to a service switching device with such an arc splitter stack.
Eine gattungsgemäße Lichtbogenlöschblechanordnung, auch Lichtbogenlöschblechpaket oder auch Deionblechpaket findet insbesondere Verwendung in einem Leitungsschutzschalter oder einem Motorschutzschalter oder in einem Schütz, durch die nicht nur Nennströme, sondern auch Überströme und insbesondere Kurzschlussströme abgeschaltet werden sollen. Die Wirkungsweise ist derart, dass ein an einer Kontaktstelle bei deren Öffnung entstehender Lichtbogen aufgrund der Stromkräfte in das Lichtbogenlöschblechpaket hineingeführt wird, in dem die auf den feststehenden beziehungsweise beweglichen Kontaktstücken gebildeten Lichtbogenfußpunkte über Lichtbogenleitschienen in das Lichtbogenlöschblechpaket geleitet werden, in welchem der Lichtbogen in mehrere Teillichtbögen unterteilt wird, wodurch die Lichtbogenspannung erhöht und der Kurzschlussstrom dadurch begrenzt werden.A generic arc extinguisher arrangement, also arc splitter stack or Deionblechpaket finds particular use in a circuit breaker or a motor protection switch or in a contactor by which not only rated currents, but also overcurrents and in particular short-circuit currents are to be turned off. The mode of operation is such that an arc arising at a contact point at its opening is guided into the arc splitter stack due to the current forces in which the arc bases formed on the fixed or movable contact pieces are led via arc guide rails into the arc splitter stack, in which the arc is divided into several partial arcs is divided, whereby the arc voltage is increased and the short-circuit current thereby limited.
Eine derartige Anordnung ist beispielsweise aus der
Ein Problem bei der Bewegung des Lichtbogens beziehungsweise der einzelnen Teillichtbögen innerhalb des Lichtbogenlöschblechpaketes besteht darin, dass ohne weitere Maßnahmen der Lichtbogen am Ende des Lichtbogenlöschblechpakets oder auch an den Seitenkanten überschlagen oder wiederzünden kann, sodass eine Strombegrenzung und eine korrekte Kurzschlussabschaltung verhindert sind.A problem with the movement of the arc or the individual partial arcs within the arc splitter stack is that without further action, the arc at the end of the arc splitter stack or at the side edges can overturn or re-ignite, so that a current limit and a correct short-circuit shutdown are prevented.
Um die besonderen Anforderungen, die sich teilweise auch widersprechen, zu erfüllen, sind verschiedene Lösungen vorgeschlagen worden.In order to meet the special requirements, which sometimes conflict, various solutions have been proposed.
Aus der
Aus der
Aus der
In der
Aufgabe der Erfindung ist es, eine Lichtbogenlöschblechanordnung zu schaffen, die gegenüber den bekannten Anordnungen zu einer Verbesserung der Lösch- und Schalteigenschaften führt, wobei Rückzündungen bzw. Überschläge außerhalb des Löschblechpakets durch die Stabilisierung des Lichtbogens im Brennfleck verhindert werden. Ein Überschlag zwischen den Blechen wird vermieden und ein lokales Aufschmelzen einzelner Bleche wird verhindert.The object of the invention is to provide an arc extinguishing plate assembly, which leads to the known arrangements to improve the extinguishing and switching properties, with flashbacks or flashovers outside of the splitter stack prevented by the stabilization of the arc in the focal spot become. A flashover between the sheets is avoided and a local melting of individual sheets is prevented.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.
Erfindungsgemäß also ist zumindest auf einer Breitseite jedes Lichtbogenlöschbleches ein in Lichtbogenlaufrichtung gesehen hinter dem Einlaufbereich befindlicher Bereich vorgesehen, der von dem isolierenden Material frei ist, wobei das isolierende Material den freien Bereich (19, 20; 35, 35a) vollständig umgibt.Thus, according to the invention, at least on one broad side of each arc quenching plate, there is a region behind the inlet region, seen in the direction of arc travel, which is free of the insulating material, the insulating material completely surrounding the free region (19, 20, 35, 35a).
Erfindungsgemäß also ist auf jeder Platte ein inselartig ausgeführter Bereich oder eine inselartige Zone unbeschichtet belassen, in welche unbeschichtete Zone der Lichtbogen gezielt hingeführt werden und bevorzugt im Bereich der unbeschichteten Zone brennen soll. Dabei kann er in dem unbeschichteten Bereich oszillieren, und durch das Oszillieren kann eine lokale Aufschmelzung verhindert werden.According to the invention, an island-like area or an island-like zone is left uncoated on each plate, into which uncoated zone the arc is intended to be guided in a targeted manner and should preferably burn in the area of the uncoated zone. He can oscillate in the uncoated area, and by oscillating a local melting can be prevented.
Eine weitere bevorzugte Ausgestaltung der Erfindung kann dahingehen, dass der von dem isolierenden Material nicht abgedeckte also frei bleibende Bereich mit einem leitfähigen Material beschichtet ist, welches beispielsweise Silber sein kann.A further preferred embodiment of the invention may be that the area not covered by the insulating material is thus coated with a conductive material, which may be silver, for example.
In der
Gemäß einer weiteren Ausführungsform der Erfindung kann als Beschichtungsmaterial in dem freibleibenden, von dem isolierenden Material umgebenen Bereich ein Verbundwerkstoff aufgebracht werden, der den in der
Gemäß einer weiteren Ausgestaltung der Erfindung kann die isolierende Beschichtung bei Lichtbogeneinwirkung Gas oder Dampf abgebende Eigenschaften aufweisen; hierdurch wird die Strombegrenzung gefördert.According to a further embodiment of the invention, the insulating coating may have gas or vapor-releasing properties upon arc action; This promotes the current limitation.
Anhand der Zeichnung, in der einige Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher erläutert und beschrieben werden.Reference to the drawing, in which some embodiments of the invention are shown, the invention and further advantageous refinements and improvements of the invention and other advantages to be explained and described in detail.
- Fig. 1Fig. 1
- eine Aufsicht auf ein Lichtbogenlöschblechpaket gemäß einer ersten Ausführungsform,a plan view of an arc splitter stack according to a first embodiment,
- Figuren 2, 3FIGS. 2, 3
- Aufsichten auf ein Lichtbogenlöschblechpaket einer zweiten und dritten Ausführungsform,Top views of an arc splitter stack of a second and third embodiment,
- Fig. 4Fig. 4
-
eine Schnittansicht durch ein Lichtbogenlöschblechpaket gemäß Schnittlinie IV-IV der
Fig. 1 ,a sectional view through an arc splitter stack according to section line IV-IV ofFig. 1 . - Fig. 5Fig. 5
-
eine Schnittansicht durch einen Teil der Lichtbogenlöschblechpakete gemäß Schnittlinie V-V der
Fig. 1 ,a sectional view through a portion of the arc splitter stack according to section line VV ofFig. 1 . - Fig. 6Fig. 6
- eine Aufsicht auf ein Lichtbogenlöschblechpaket einer weiteren Ausführungsform unda plan view of an arc splitter stack of another embodiment and
- Fig. 7Fig. 7
-
eine Schnittansicht gemäß Schnittlinie VII-VII der
Fig. 6 .a sectional view taken along section line VII-VII ofFig. 6 ,
Ein elektrischer Leitungsschutzschalter, der hier nicht näher dargestellt werden soll, dessen Aufbau aber als solches bekannt ist, besitzt eine Kontaktstelle mit einem feststehenden und einem an einem Kontakthebel angebrachten beweglichen Kontaktstück, denen jeweils Lichtbogenleitschienen zugeordnet sind, die parallel verlaufen und ein Lichtbogenlöschblechpaket entsprechend den
Im Falle eines Kurzschlussstromes beispielsweise entsteht bei einer Schalthandlung, d. h. einer Öffnung der Kontaktstelle, auf dem feststehenden und auf dem beweglichen Kontaktstück der Lichtbogenfußpunkt eines zwischen den beiden brennenden Lichtbogens, wobei die Lichtbogenfußpunkte auf die Lichtbogenleitschienen kommutieren und der Lichtbogen aufgrund elektromagnetischer Kräfte, die hier nicht näher erläutert werden sollen, in das Lichtbogenlöschblechpaket hineingetrieben wird.In the case of a short-circuit current, for example, arises during a switching operation, ie, an opening of the contact point on the fixed and on the movable contact piece of the arc root of a burning between the two arc, the arc base commute to the arc guide rails and the arc is driven into the arc splitter stack due to electromagnetic forces, which will not be discussed further here.
Das Lichtbogenlöschblechpaket ist aufgebaut aus mehreren Lichtbogenlöschblechen, die so ausgebildet sein können, wie in den
Bei der Ausführungsform gemäß
Das Lichtbogenlöschblechpaket ist beidseitig mit einer Schicht 17 und 18 aus isolierendem Material, bis auf einen freibleibenden Abschnitt 19 und 20, die in der Ausführung gemäß
Die
Die
Wenn nun ein Lichtbogen in das Lichtbogenlöschblechpaket einläuft, dann wird es in den Schlitz 14 hinein beschleunigt und kann dann nach Überwinden der Isolierschicht zwischen dem Grund des Schlitzes 14 und dem Abschnitt 19, 20 in diesem Abschnitt 19, 20 aller Lichtbogenlöschbleche, siehe
Bei der Ausführung eines Lichtbogenlöschblechpaketes gemäß
Insoweit unterscheidet sich das Lichtbogenlöschblech gemäß
Die Lichtbogenlöschbleche 30 gemäß
Die
Bei der Ausführung gemäß
Es besteht nun die Möglichkeit, die freibleibenden Abschnitte 19, 20; 35, 35a mit elektrisch leitfähigen Materialien zu beschichten, in dem in diesen Bereichen Silber aufgebracht wird; es kann natürlich auch ein Verbundmaterial verwendet werden, welches ebenfalls elektrisch leitfähig, wenn auch weniger leitfähig als beispielsweise eine Silberschicht ist. Dabei besteht auch die Möglichkeit, auf der einen Seite des Lichtbogenlöschbleches den nicht mit isolierendem Material beschichteten Abschnitt mit der elektrisch leitfähigen Schicht zu beschichten und auf der anderen Seite diesen Abschnitt frei zu belassen usw.It is now possible, the remaining
Die isolierende Beschichtung kann dabei ebenso wie die Beschichtung innerhalb des von dem isolierenden Material nicht beschichteten Bereiches 19, 20 beziehungsweise 35, 35a ein Gas abgebendes Material sein, welches an sich ebenfalls bekannt ist.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008017868A DE102008017868B3 (en) | 2008-04-09 | 2008-04-09 | Arc extinguishing plate assembly for an electrical switch |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2109130A1 true EP2109130A1 (en) | 2009-10-14 |
Family
ID=40839646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09003797A Withdrawn EP2109130A1 (en) | 2008-04-09 | 2009-03-17 | Arc welding anti-surge sheet metal assembly for an electrical switch |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090255904A1 (en) |
EP (1) | EP2109130A1 (en) |
CN (1) | CN101556871A (en) |
CA (1) | CA2661978A1 (en) |
DE (1) | DE102008017868B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101908450A (en) * | 2010-07-20 | 2010-12-08 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8822866B2 (en) | 2010-04-19 | 2014-09-02 | Carling Technologies, Inc. | Circuit interrupter with enhanced arc quenching capabilities |
CN102005322B (en) * | 2010-12-10 | 2013-01-30 | 武汉长海电气科技开发有限公司 | Switch apparatus arc extinguish chamber |
WO2013152555A1 (en) * | 2012-04-10 | 2013-10-17 | Abb Technology Ltd. | Arc-quenching device of switch for low, medium and high voltage applications |
US9087654B2 (en) | 2012-12-04 | 2015-07-21 | Larsen & Toubro Limited | Arc chute arrangement for arc quenching in electrical switching device |
US10056210B2 (en) | 2016-01-14 | 2018-08-21 | Rockwell Automation Switzerland Gmbh | Arc chamber assembly and method |
AU2018443896B2 (en) | 2018-09-25 | 2022-03-17 | Hager-Electro Sas | Electric arc-extinguishing device for an electrical protection apparatus, and electrical protection apparatus incorporating said device |
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---|---|---|---|---|
US2934629A (en) * | 1956-09-10 | 1960-04-26 | Comp Generale Electricite | Arc blowing chimneys for circuit breakers having a large breaking capacity |
DE2133926A1 (en) | 1971-07-07 | 1973-01-18 | Allis Chalmers Mfg Co | SPARK CHAMBER FOR AIR CIRCUIT BREAKER |
DE3247681A1 (en) | 1982-12-23 | 1984-06-28 | Brown, Boveri & Cie Ag, 6800 Mannheim | Arc-extinguishing chamber |
DE3818864A1 (en) | 1988-06-03 | 1989-12-14 | Kloeckner Moeller Elektrizit | Current interrupter with an arc bounding 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 |
EP1667180A1 (en) * | 2004-12-06 | 2006-06-07 | Schneider Electric Industries Sas | Electrical contactor and electric arc extinguishing chamber with deionisation blades |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63264840A (en) * | 1987-04-21 | 1988-11-01 | Mitsubishi Electric Corp | Circuit breaker |
EP1313117B1 (en) * | 2001-11-16 | 2014-06-04 | Abb Ag | Arc quenching device for an electronic switch device |
CN2676394Y (en) * | 2004-02-06 | 2005-02-02 | 西安交通大学 | A grating sheet arc-suppression chamber with gas-generating insulating material interlayer |
DE102007005996B4 (en) * | 2007-02-07 | 2009-01-02 | Abb Ag | Arc splitter arrangement |
-
2008
- 2008-04-09 DE DE102008017868A patent/DE102008017868B3/en not_active Expired - Fee Related
-
2009
- 2009-03-17 EP EP09003797A patent/EP2109130A1/en not_active Withdrawn
- 2009-04-01 US US12/416,252 patent/US20090255904A1/en not_active Abandoned
- 2009-04-08 CN CNA2009101337399A patent/CN101556871A/en active Pending
- 2009-04-08 CA CA002661978A patent/CA2661978A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2934629A (en) * | 1956-09-10 | 1960-04-26 | Comp Generale Electricite | Arc blowing chimneys for circuit breakers having a large breaking capacity |
DE2133926A1 (en) | 1971-07-07 | 1973-01-18 | Allis Chalmers Mfg Co | SPARK CHAMBER FOR AIR CIRCUIT BREAKER |
DE3247681A1 (en) | 1982-12-23 | 1984-06-28 | Brown, Boveri & Cie Ag, 6800 Mannheim | Arc-extinguishing chamber |
DE3818864A1 (en) | 1988-06-03 | 1989-12-14 | Kloeckner Moeller Elektrizit | Current interrupter with an arc bounding 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 |
EP1667180A1 (en) * | 2004-12-06 | 2006-06-07 | Schneider Electric Industries Sas | Electrical contactor and electric arc extinguishing chamber with deionisation blades |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101908450A (en) * | 2010-07-20 | 2010-12-08 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
CN101908450B (en) * | 2010-07-20 | 2012-07-18 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
Also Published As
Publication number | Publication date |
---|---|
CA2661978A1 (en) | 2009-10-09 |
CN101556871A (en) | 2009-10-14 |
US20090255904A1 (en) | 2009-10-15 |
DE102008017868B3 (en) | 2009-12-24 |
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