EP2859570B1 - Appareil de coupure pour courant continu - Google Patents

Appareil de coupure pour courant continu Download PDF

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Publication number
EP2859570B1
EP2859570B1 EP13727913.9A EP13727913A EP2859570B1 EP 2859570 B1 EP2859570 B1 EP 2859570B1 EP 13727913 A EP13727913 A EP 13727913A EP 2859570 B1 EP2859570 B1 EP 2859570B1
Authority
EP
European Patent Office
Prior art keywords
arc
extinguishing
switching device
contact
switching
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.)
Not-in-force
Application number
EP13727913.9A
Other languages
German (de)
English (en)
Other versions
EP2859570A1 (fr
Inventor
Johannes Meissner
Ralf Thar
Karsten Gerving
Volker Lang
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.)
Eaton Electrical IP GmbH and Co KG
Original Assignee
Eaton Electrical IP GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Priority to PL13727913T priority Critical patent/PL2859570T3/pl
Publication of EP2859570A1 publication Critical patent/EP2859570A1/fr
Application granted granted Critical
Publication of EP2859570B1 publication Critical patent/EP2859570B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/565—Gas-tight sealings for moving parts penetrating into the reservoir

Definitions

  • the invention relates to a switching device for guiding and separating high DC currents.
  • the switching device comprises a gas-tight encapsulated housing, which is filled with an insulating gas, and at least one contact pair, which is arranged in the housing and having a first contact and a second contact, wherein at least one of the two contacts is movable and the two contacts in an on state of the switching device in contact with each other and in an off state of the switching device are out of contact with each other.
  • the switching device comprises an arc runner arrangement which generates a magnetic field at least in the region of the contact pair.
  • Such a switching device is for example from the US Pat. No. 5,680,084 known.
  • the housing described therein is filled with a gas mixture comprising hydrogen.
  • the switching chamber walls and the extinguishing chambers are also subjected to thermal stress, which results in a limitation of the electrical life of the switching device.
  • the load of the switching device during the switching process is particularly high in the case of high arc performance, especially in the absence or low mobility of the arc, resulting in a relatively high contact erosion and material changes of the switching chamber walls by locally high thermal loads result.
  • a high thermal load of the switching chambers occurs in particular at high direct currents, which in contrast to comparable alternating currents have no sinusoidal current profile with natural zero crossing and thus have after separation of the switching contacts a consistently high arc performance.
  • it is therefore essential to minimize the burning time of the switching arc by its rapid cooling and deionization of the switching path. In this case, a rapid increase in the burning voltage is achieved, which leads to the extinction of the arc when reaching the driving voltage.
  • a very efficient arc quenching can be achieved if instead of normal air as switching environment hydrogen or a hydrogen-containing gas mixture in the form of a hermetically encapsulated housing of the switch selects. It is known that hydrogen molecules cause a very efficient cooling and deionization of the switching path due to significantly higher particle velocity compared to air molecules. As a result, when switching in a hydrogen atmosphere on a free-burning arc, a multiple of the arc voltage achievable with the same switching arrangement in air can be achieved. In practice, this means that you can build a higher arc voltage over a targeted elongation of the switching arc, caused by a magnetic blower field, as by the division of the arc into several partial arcs in the form of a classic arc splitter.
  • Encapsulated hydrogen-filled switching devices can be found today in several products in the form of compact relays for currents up to several hundred amps realized. Above all, these products are designed to permanently carry currents of this magnitude in the form of very compact arrangements and typically to switch them several thousand times. With these compact switching chambers, however, the achievable switching numbers are limited at high switching capacities by a gradually decreasing insulation capacity of such arrangements.
  • the document DD 37 438 describes a switching device especially for DC operation.
  • the document EP 1 022 758 A2 shows a switching device in a rotationally symmetric insulator tube.
  • Object of the present invention is therefore to realize a switch, preferably for high DC currents, which allows for relatively compact dimensions high electrical switching performance at high switching frequency and high total number of switching.
  • a switching device according to claim 1.
  • the switching device is filled with an insulating gas, in particular hydrogen or a hydrogen-containing gas mixture, and additionally an extinguishing device is provided, two effective methods for extinguishing the switching arc are combined, so that there is a particularly efficient and rapid deletion of the switching arc.
  • an efficient extinguishing of the arc is effected.
  • the switch can also be used for higher currents, since even in cases where the hydrogen atmosphere is insufficient, then the Arc quenching ensures that the arc is safely extinguished.
  • the extinguishing device is made of an electrically non-conductive material and shaped so that the arc is widened meandering.
  • the extinguishing device may be made of ceramic, for example. Due to the meandering expansion of the arc, the effective arc gap is significantly extended, without having an increased space requirement within the switching device.
  • the quenching chamber may include a plurality of spaced-apart quenching plates of refractory and electrically non-conductive material, such as e.g. Ceramic, include. This results in a simple structure and a simple production, as is known for example in connection with Deion chambers.
  • the extinguishing device has an inlet side, from which the arc is directed into the extinguishing device and enters it.
  • the individual extinguishing plates protrude differently, so that when the arc is driven into the extinguishing device, the arc is already widening in a meandering or undulating manner, since the arc moves around the plates and conforms to them.
  • different length extinguishing plates can be provided, wherein alternately shorter and longer extinguishing plates are arranged.
  • the extinguishing plates may further each have a notch on the inlet side of the extinguishing device, in which the arc is driven into it.
  • the notch may be asymmetrical in this case and / or arranged off-center, so that the lowest point of the notch is arranged off-center.
  • the notches of adjacent extinguishing plates together can form a groove with an odd course.
  • the arc is additionally widened meandering transverse to its direction of movement.
  • a waveform of the arc on the one hand in the direction of movement of the arc by nestling on the extinguishing plates and a waveform transverse to the direction of movement results through the notches. This causes a very efficient extension or expansion of the arc.
  • the arc runner assembly may include at least two permanent magnets that are arranged outside the housing and generate the magnetic field in the region of the contact pair.
  • At least one arc guide arrangement is provided, by means of which an arc occurring between the contacts is led to the extinguishing device.
  • the arc guide assembly may include a first baffle and a second baffle, each extending from the contacts in the direction of the at least one quenching device, that increases the distance from each other.
  • a first extinguishing device For a first polarity of an arc, a first extinguishing device and for a second polarity of the arc, a second extinguishing device may be provided.
  • a first extinguishing device For a first polarity of an arc, a first extinguishing device and for a second polarity of the arc, a second extinguishing device may be provided.
  • the first contact is electrically conductively connected to a fixed electrode and the second contact is electrically conductively connected to a movable electrode.
  • each of the electrodes has a guide arrangement of the arc guiding device in the form of a surface widening starting from the respective contact in the direction away from the respective other electrode.
  • the surface of the electrode can be represented by a separate cup-shaped component.
  • the movable electrode may be sealed out of the housing via a bellows, wherein a shield plate is provided on the movable electrode, which at least partially surrounds the bellows and protects against thermal influences.
  • the housing has an insulating tube of electrically insulating material and two covers closing the insulating at its ends, wherein the insulating tube, the cover and the electrodes are rotationally symmetrical to a longitudinal axis of the switching device.
  • the switching device 1 comprises a switching chamber 2 forming a housing 3, which is hermetically sealed to the outside and is designed substantially cylindrical with a fixed electrode 4 at one end face.
  • first lid 7 On the side of the fixed electrode 4 is a cup-shaped first lid 7, which is connected either as a separate component concentric with the fixed electrode 4, wherein the outer part of the fixed electrode 4 passes through an opening in the lid 7, or as in the FIG. 1 shown, the first cover 7 and the fixed electrode 4 are designed as a unitary component.
  • the mobility of the movable electrode 5 is achieved via an axially variable-length bellows 6, whose one end face is connected to the movable electrode 5 gas-tight.
  • the other end face of the bellows 6 is also gas-tightly connected to a cup-shaped second lid 9 in such a way that the portion of the movable electrode 5 located outside the housing 3 is passed through a concentric opening 8 on the lid front side.
  • the ends facing away from the outer electrode sides of the two covers 7, 9 are each gas-tightly connected to an end face of a cylindrical insulating tube 10 made of an electrically insulating material, preferably ceramic.
  • the insulating tube 10 is in this case positioned in the longitudinal direction of the housing 3 so that the inner ends of the two electrodes 4, 5 are located in the interior of the insulating tube 10.
  • the located in the interior of the housing 3 side of the fixed electrode 4 carries on its front side 11 a first contact 13 and the inside of the housing 3 located side of the movable electrode 5 carries on its front side 12 a second contact 14.
  • Die beidenmaschinee 13, 14 are the same size and together form a contact pair.
  • the contacts 13, 14 are preferably made of a suitably chosen erosion-resistant contact material.
  • the two contacts 13, 14 are in this case firmly connected with their respective electrode 4, 5 via a flat solder connection.
  • the switching chamber 2 is designed as follows. Two parallel to each other permanent magnets 15, 16, in the middle of which the switching chamber 2 and the housing 3 is located, are arranged outside of the housing 3. The permanent magnets 15, 16 are arranged at the level of the two contacts 13, 14 and generate a magnetic field whose field lines in the region of the contacts 13, 14 are approximately homogeneous, wherein the field lines are parallel to the surface of the contacts 13, 14.
  • a resulting when opening the contacts 13, 14 arc is due to the force acting in the contact area Lorentz force at a properly selected magnetic field strength rapidly from the surfaces of the contacts 13, 14 away in the direction of the insulating 10 moves.
  • the extinguishing devices 17, 18 are used for targeted expansion or lengthening of the running in the direction of the insulating tube 10 Arc as soon as it reaches an inlet side 19 of one of the two extinguishing devices 17, 18.
  • the extinguishing devices 17, 18 each comprise a stack arrangement of extinguishing plates 20, 21 of a erosion-resistant insulating material, preferably ceramic, which in analogy to the When switching to air often used Deion extinguishing chambers are fixed in a defined distance from each other in a frame 32, which also consists of insulating material (see FIG. 3 ).
  • the extinguishing devices 17, 18 are aligned with the permanent magnets 15, 16 located outside the switching chamber 2 in such a way that the magnetic field lines perpendicular to the longitudinal axes L1, L2 of the two permanent magnets 15, 16 and perpendicular to a connection plane, which includes both longitudinal axes L1, L2, lie.
  • the arc is when entering a the extinguishing devices 17, 18 are not divided according to the invention, but selectively extended by nestling on the individual extinguishing plates 20, 21 and by the blasfeld employmente bulge in the space between the extinguishing plates 20, 21. With a stepped plate assembly of the shape just described thus additional elongation of the arc is achieved.
  • a further reinforcement of the arc bulging can be achieved by notches 22, 23 in the extinguishing plates 20, 21 on the inlet side 19.
  • the indentations 22, 22 'of adjacent extinguishing plates 20, 20' may be offset from one another or formed differently asymmetrically.
  • a quenching devices 17, designed in this way significantly higher arc voltages can be achieved in a switching chamber atmosphere composed of hydrogen or a hydrogen-containing gas mixture than in a deion chamber of comparable size operated in air, which as a result greatly shortens the burning time of the electric arc.
  • the two contacts 13, 14 are chamfered in such a way that the surfaces facing the electrodes 4, 5 larger are as the respective other contact 14, 13 facing surfaces.
  • a continuous migration of the arc from the surfaces of the contacts 13, 14 is favored.
  • a favorable arc running behavior can be achieved by a conical or bell-shaped configuration of the electrode surfaces 24, 25 in the interior of the housing 3.
  • An additional improvement of the arc guide in the direction of the quenching devices 17, 18 can be achieved by a bead 26, 27 or a bead-like elevation of the bell-shaped electrode surfaces 24, 25 of both electrodes 4, 5 in the direction along the connecting plane of the two quenching devices 17, 18.
  • a particularly advantageous embodiment of the arc guide can be achieved in that, as in FIG. 1 represented baffles in the form of starting from the respective contact in the direction away from the other electrode opposite direction widening caps 28, 29 are provided of electrically conductive material. The caps 28, 29 also each form one of the beads 26, 27.
  • the caps 28, 29 are separate components, which consist of a erosion-resistant material and in full length to the conical or bell-shaped surface geometry of the electrodes 4, fifth nestle and form a solid bond with these, for example via a flat solder joint. With such an arrangement, the erosion counteracted by the local melting and evaporation along the arc root points associated with each circuit can be counteracted.
  • a switching chamber is realized, which - embedded in the manner described in the permanent magnetic field - allows a polarity-independent switching, i. Irrespective of the polarity of the current, the electric arc produced when the contacts 13, 14 are opened will always pass through one of the two baffles in the form of the caps 28, 29 into the respectively adjacent extinguishing devices 17, 18 and extinguish there become.
  • the so-called "pinch-off" method in which in the first step, first the individual components or assemblies of the switching device mounted and the entire assembly then gas-tight, preferably via solder joints, is closed. Before filling with the desired insulating gas, the atmospheric air must first be completely removed from the housing. This is done via a suction tube preferably made of copper, which is connected to the housing gas-tight at the chamber end to the housing preferably via a solder and which is connected at the other end to a vacuum pump. After reaching the desired vacuum, the housing is filled via an appropriate valve with the insulating gas of the desired pressure. Finally, the chamber is then over a flat Squeezing the suction tube and subsequent separation sealed from the filling gas-tight.
  • Another advantageous method for filling and hermetically sealing the housing is the so-called "one-shot brazing" method.
  • the housing is first built completely according to the modular principle and prefixed suitable. Between all surfaces to be soldered solder material is added in a suitable form and amount. Subsequently, the entire assembly is placed in a vacuum brazing furnace where it is evacuated successively in a single furnace process, filled with insulating gas of the desired pressure and finally sealed completely gas-tight at a furnace temperature above the solder melting point.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (11)

  1. Appareil de coupure (1) adapté pour un fonctionnement en courant continu, comprenant un boîtier isolant électriquement (3), encapsulé de manière étanche au gaz, lequel est rempli avec un gaz isolant, au moins une paire de contacts (13, 14) disposée dans le boîtier (3) et qui présente un premier contact (13) et un deuxième contact (14), dans lequel au moins l'un des deux contacts (13, 14) est mobile et les deux contacts (13, 14) sont en contact l'un avec l'autre dans un état enclenché de l'appareil de coupure (1) et ne sont pas en contact l'un avec l'autre dans un état déclenché de l'appareil de coupure (1), dans lequel le premier contact (13) est relié de manière électroconductrice à une électrode fixe (4) et le deuxième contact (14) de manière électroconductrice à une électrode mobile (5),
    ainsi qu'un dispositif de chasse d'arc électrique (15, 16), lequel génère un champ magnétique au moins dans la zone de la paire de contacts (13, 14), dans lequel est prévu un dispositif d'extinction (17, 18) pour l'extinction de l'arc électrique dans lequel l'arc électrique est chassé par le dispositif de chasse d'arc électrique (15, 16), dans lequel le boîtier (3) comprend un tube d'isolateur (10) en un matériau isolant électriquement ainsi que deux couvercles (7, 9) fermant le tube d'isolateur (10) à ses extrémités, et dans lequel le tube d'isolateur (10), les couvercles (7, 9) et les électrodes (4, 5) sont réalisés à symétrie de rotation par rapport à un axe longitudinal (L),
    dans lequel le dispositif d'extinction (17, 18) est fabriqué en un matériau non électroconducteur et est formé de manière à ce que l'arc électrique soit élargi en forme de méandres, dans lequel au moins un dispositif de guidage d'arc électrique (24, 25) est prévu, au moyen duquel un arc électrique apparaissant entre les contacts (13, 14) est guidé vers le dispositif d'extinction (17, 18), dans lequel chacune des électrodes (4, 5) présente un dispositif de guidage du dispositif de guidage d'arc électrique sous la forme d'une surface s'élargissant en partant du contact (13, 14) respectif dans la direction opposée à l'autre électrode respective.
  2. Appareil de coupure selon la revendication 1, caractérisé en ce que le dispositif d'extinction (17, 18) comprend plusieurs plaques d'extinction (20, 20', 21), empilées avec une distance entre elles, en un matériau résistant à la chaleur et non électroconducteur.
  3. Appareil de coupure selon la revendication 2, caractérisé en ce que les plaques d'extinction (20, 20', 21) dépassent à des distances différentes d'un côté d'entrée (19) du dispositif d'extinction (17, 18).
  4. Appareil de coupure selon la revendication 3, caractérisé en ce que sont prévues des plaques d'extinction tour à tour plus courtes (20) et plus longues (20').
  5. Appareil de coupure selon l'une des revendications 2 à 4, caractérisé en ce que les plaques d'extinction (20, 20', 21) présentent respectivement une encoche (22, 22', 23) sur un côté d'entrée (19) des dispositifs d'extinction (17, 18), lesquelles sont réalisées asymétriquement et/ou disposées de manière excentrée.
  6. Appareil de coupure selon la revendication 5, caractérisé en ce que les encoches (22, 22', 23) de toutes les plaques d'extinction (20, 20', 21) forment une rainure au tracé non rectiligne.
  7. Appareil de coupure selon l'une des revendications précédentes, caractérisé en ce que le dispositif de chasse d'arc électrique comprend au moins deux aimants permanents (15, 16) disposés à l'extérieur du boîtier (3).
  8. Appareil de coupure selon l'une des revendications précédentes, caractérisé en ce que le dispositif de guidage d'arc électrique comprend une première tôle de guidage (24) et une deuxième tôle de guidage (25), lesquelles, en partant respectivement des contacts, s'étendent en direction de l'au moins un dispositif d'extinction (17, 18) de manière à ce que la distance entre elles s'agrandisse.
  9. Appareil de coupure selon l'une des revendications précédentes, caractérisé en ce que, pour une première polarité d'un arc électrique, est prévu un premier dispositif d'extinction (17) et pour une deuxième polarité de l'arc électrique, un deuxième dispositif d'extinction (18).
  10. Appareil de coupure selon l'une des revendications précédentes, caractérisé en ce que l'électrode mobile (5) est menée de manière étanchéifiée par l'intermédiaire d'un soufflet (6) hors du boîtier (3) et qu'une tôle de blindage (30) est prévue sur l'électrode mobile (5), laquelle entoure au moins partiellement le soufflet (6).
  11. Appareil de coupure selon l'une des revendications précédentes, caractérisé en ce que l'un des couvercles (7) est réalisé d'un seul tenant avec l'électrode fixe (4).
EP13727913.9A 2012-06-11 2013-06-11 Appareil de coupure pour courant continu Not-in-force EP2859570B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13727913T PL2859570T3 (pl) 2012-06-11 2013-06-11 Łącznik prądu stałego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012104992A DE102012104992A1 (de) 2012-06-11 2012-06-11 Schaltgerät
PCT/EP2013/062004 WO2013186201A1 (fr) 2012-06-11 2013-06-11 Appareil de coupure à courant continu

Publications (2)

Publication Number Publication Date
EP2859570A1 EP2859570A1 (fr) 2015-04-15
EP2859570B1 true EP2859570B1 (fr) 2017-11-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13727913.9A Not-in-force EP2859570B1 (fr) 2012-06-11 2013-06-11 Appareil de coupure pour courant continu

Country Status (4)

Country Link
EP (1) EP2859570B1 (fr)
DE (1) DE102012104992A1 (fr)
PL (1) PL2859570T3 (fr)
WO (1) WO2013186201A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10211003B1 (en) * 2017-11-22 2019-02-19 Carling Technologies, Inc. Single pole DC circuit breaker with bi-directional arc chamber
CN108597948A (zh) * 2018-06-13 2018-09-28 贵州电网有限责任公司 一种高压真空开关分段灭弧装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735074A (en) * 1971-07-14 1973-05-22 Gen Electric Arc chute for an electric circuit breaker
EP0473014A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des cornes d'arc fourchues s'étendant dans des chambres d'extinction d'arc séparées

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Publication number Priority date Publication date Assignee Title
DD37438A (fr) *
CH312401A (de) * 1953-03-25 1955-12-31 Fkg Ag Verfahren zur Schaffung günstiger Ausschaltbedingungen für einen elektrischen Schalter
CH462918A (de) * 1966-12-23 1968-09-30 Oerlikon Maschf Schaltvorrichtung
JPH0622087B2 (ja) * 1987-05-25 1994-03-23 松下電工株式会社 封止接点装置
US5680084A (en) 1994-11-28 1997-10-21 Matsushita Electric Works, Ltd. Sealed contact device and operating mechanism
DE19902498C2 (de) * 1999-01-22 2001-05-17 Moeller Gmbh Vakuumschaltröhre
FR2879019B1 (fr) * 2004-12-06 2008-04-04 Schneider Electric Ind Sas Dispositif electrique de coupure avec chambre d'extinction d'arc a ailettes de desionisation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735074A (en) * 1971-07-14 1973-05-22 Gen Electric Arc chute for an electric circuit breaker
EP0473014A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des cornes d'arc fourchues s'étendant dans des chambres d'extinction d'arc séparées

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WO2013186201A1 (fr) 2013-12-19
PL2859570T3 (pl) 2018-02-28
DE102012104992A1 (de) 2013-12-12
EP2859570A1 (fr) 2015-04-15

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