EP2600371A1 - Appareil de commutation pour un fonctionnement à courant continu - Google Patents

Appareil de commutation pour un fonctionnement à courant continu Download PDF

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Publication number
EP2600371A1
EP2600371A1 EP11191216.8A EP11191216A EP2600371A1 EP 2600371 A1 EP2600371 A1 EP 2600371A1 EP 11191216 A EP11191216 A EP 11191216A EP 2600371 A1 EP2600371 A1 EP 2600371A1
Authority
EP
European Patent Office
Prior art keywords
contact
arc
switching device
contacts
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.)
Withdrawn
Application number
EP11191216.8A
Other languages
German (de)
English (en)
Inventor
Karsten Gerving
Volker Lang
Johannes Meissner
Ralf Thar
Guido Dedenbach
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 Industries GmbH
Original Assignee
Eaton Industries GmbH
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 Industries GmbH filed Critical Eaton Industries GmbH
Priority to EP11191216.8A priority Critical patent/EP2600371A1/fr
Priority to EP12794313.2A priority patent/EP2786388B1/fr
Priority to PL12794313T priority patent/PL2786388T3/pl
Priority to PCT/EP2012/073792 priority patent/WO2013079508A1/fr
Priority to US14/360,946 priority patent/US20140347151A1/en
Publication of EP2600371A1 publication Critical patent/EP2600371A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • 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
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the invention relates to a switching device suitable for a DC operation with a
  • Housing having at least one pair of contacts with 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 out of contact with each other, with a Arc runner arrangement which generates a magnetic field at least in the region of the contact pair, and with a first arc guide arrangement, by means of which an arc occurring between the contacts is conducted with a first current direction to a first extinguishing device for extinguishing the arc.
  • Such a switching device is from the EP 2 061 053 A2 known.
  • To provide a switching device for DC applications there is proposed to use the housing of a switching device for AC applications, wherein additionally at least one magnet is provided which has a magnetic field with substantially transverse to the separation paths of the current paths of the AC switching device field lines.
  • the housing In the housing, three receiving areas are provided for each one flow path, wherein each current path is associated with a movable switching contact element and two opposing fixed switching contact elements.
  • the three movable switching contact elements are jointly movable between a closed position, which corresponds to the switched-on state of the switching device, and an open position, which corresponds to a switched-off state of the switching device.
  • each current path is each associated with two arc quenching devices, which are each in the form of individual stacked, electrically insulated from each other quenching plates are formed.
  • each current path has two separation sections, which are form with open movable switching contact elements between the ends thereof and the first and second fixed switching contact elements associated with these ends. When opening the switching contact elements forms an arc along the separation sections, with the help of Arc quenching can be deleted.
  • erasure of an arc can not be achieved due to zero current passage, as in AC applications, DC applications require the provision of a magnetic field which drives the arc into one of the arc quenching devices.
  • This magnetic field is formed by permanent magnets, wherein a magnetic field is built up with field lines in an orientation which extend transversely to the separation lines and generate a Lorenz force on these arcs forming parting lines, which drives the arcs in the direction of one of the arc extinguishing devices.
  • an arc is driven between a first contact pair in the direction of a first arc quenching device and the arc between a second contact pair in a second arc quenching device. Since the movement of the arcs depends on the current direction, the switching device is suitable only for one direction of current, ie polarity. If the switching device were also operated in a reverse current direction, the arcs would not be driven into the arc extinguishing devices, but in the opposite direction.
  • Object of the present invention is to provide a switching device that can be operated independently of polarity, which can therefore be used for different current directions.
  • a switching device suitable for a DC operation which comprises a housing, at least one contact pair with 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 and are in an off state of the switching device out of contact with each other, an arc runner assembly which generates a magnetic field at least in the region of the contact pair, and a first arc guide, by means of which an arc occurring between the contacts is conducted with a first current direction to a first extinguishing device for extinguishing the arc.
  • a second arc guide arrangement is provided, by means of which an arc occurring between the contacts is conducted with a second current direction opposite the first current direction to a second extinguishing device for extinguishing the arc and wherein both Lichtbogenleitan everen are immovably received in the switch housing.
  • both extinguishing devices can be constructed similarly or identically.
  • a similar structure of the extinguishing devices is given in particular by the fact that the extinguishing plates of the two extinguishing devices are identical when using a deion-extinguishing chamber with a plurality of extinguishing plates.
  • the first arc guide arrangement can in this case be arranged such that an arc is conducted with a first current direction in a first direction to the first erasing device, wherein the second arc guide arrangement can be arranged such that an arc with a second current direction in a second direction parallel to the first direction is deflected to the second extinguishing device and directed.
  • arcs are thus driven in both directions in the same direction in the respective extinguishing device.
  • the extinguishing devices are thus also aligned in the same direction. This ensures a simple and compact arrangement of the two extinguishing devices, which are preferably arranged directly next to each other.
  • the extinguishing devices are preferably located on a wall of the housing, wherein the extinguishing devices each have exhaust openings which point in the same direction and are aligned with openings in the housing.
  • the first contact is preferably arranged on an upper side of a fixed contact carrier immovably held in the housing.
  • the arc guiding arrangements are preferably arranged such that an arc is conducted with a first current direction along the upper side of the fixed contact carrier to the first extinguishing device and that an arc is conducted with a second current direction along an underside of the fixed contact carrier facing away from the upper side to the second extinguishing device.
  • the arc with the second current direction is therefore deflected by 180 ° with respect to the path the arc travels with the first current direction.
  • the fixed contact carrier preferably extends between the two extinguishing devices. This results in a compact and symmetrical structure, wherein also the two extinguishing devices are separated by the fixed contact carrier and no further dividers must be provided.
  • the arc guide assemblies each comprise a first baffle and a second baffle, wherein the first baffle extends from the first contact to the respective quenching device and wherein the second baffle extends from the second contact to the respective quenching device.
  • the arc guide arrangements can be made particularly compact if the first guide plate is formed by a fixed contact carrier held immovably in the housing, on which the first contact is arranged.
  • the fixed contact carrier also serves as a connection point for connection to an electrical conductor, so that the fixed contact carrier basically has the same potential as the first contact.
  • the second baffle may be associated with a first contact movable bridge assembly on which the second contact is disposed.
  • the second baffle thus has the same potential as the second contact.
  • the second baffle may also be divided and have a first part which is connected to a first contact movable bridge assembly and having a second part which is arranged immovably in the contact housing.
  • the two guide blanks should be arranged such that the distance of the two guide plates, starting from the contacts to the respective extinguishing device increases in order to increase the voltage required to maintain an arc between the two baffles.
  • the two baffles take the extinguishing device between them, so that the arcs are ultimately driven into the extinguishing device.
  • the two extinguishing devices can be constructed identical to one another in order to ensure a simple construction of the switching device with standardized components.
  • the extinguishing devices can be designed as a deion-extinguishing chambers with a plurality of mutually electrically isolated extinguishing plates.
  • a plurality of double interrupting switching arrangements can be arranged side by side, wherein the bridge switching pieces of the individual switching arrangements are actuated by a common switching bridge to provide a multi-pole switching device.
  • the electrical switching device 1 comprises a total of two poles, ie two switching paths, namely a first switching path 2 and a second switching path 3.
  • the two switching paths 2, 3 are each provided with a switch, as explained in more detail below, and thus can be electrically interrupted.
  • the two switching paths 2, 3 can each be integrated into a DC circuit and serve to interrupt a current flow.
  • the in the Figures 1 and 2 Front first switching path 2 will be explained below also representative of the second switching path 3, since both switching paths 2, 3 are constructed identically.
  • the two second contacts 11, 16 are arranged on an electrically conductive bridge contact piece 18 and electrically connected to one another.
  • the bridge contact piece 18 can be in the in the Figures 1 and 2 illustrated orientation of the switching device 1 adjust vertically between a raised position and a lowered position, wherein in the raised position, the switching device 1 is in an off state in which the second contacts 11, 16 are not held in contact with the first contacts 10, 15 are. In the lowered position of the bridge contact piece 18, the second contacts 11, 16 are held in contact with the first contacts 10, 15, wherein this position corresponds to the switched state of the switching device. In the switched-on state of the switching device 1, current between the first terminal 4 and the second Port 5 flow. When switched off, the current conduction between the first terminal 4 and the second terminal 5 is interrupted.
  • first switching arrangement of the first contact pair 12 is explained in more detail, wherein this is designed identically and mirror-inverted to the second switching arrangement of the second contact pair 17.
  • a first arc guide arrangement 22 and a second arc guide arrangement 23 are arranged in the area of the first contact pair 12.
  • the two arc guiding arrangements 22, 23 are arranged vertically one above the other.
  • an arc runner assembly 24 is provided, which in FIG. 3 is shown in detail.
  • the arc runner assembly 24 includes two permanent magnets 28 each disposed between two pole plates 25, 26, 27. Overall, therefore, 3 pole plates, namely a middle pole plate 25 between the two permanent magnets 28 and a first outer pole plate 26 and a second outer pole plate 27 are provided.
  • the first arc guide arrangement 22 comprises a first guide plate, which in the present case is represented by the first fixed contact carrier 8. In principle, however, it is also conceivable that a separate baffle is provided for this purpose. Further, a second baffle 29 is provided, which is divided and comprises two parts. A first part 30 of the second baffle 29 is formed integrally with the bridge contact piece 18. A second part 31 of the second guide plate 29 is arranged immovably in the housing 6. The two parts 30, 31 of the second guide plate 29 merge into one another and have a narrow air gap at their point of separation.
  • the arc is then driven into the first extinguishing device 32, a plurality of partial arcs are formed between the individual extinguishing plates 33, the arc voltage being higher than the driving voltage, so that the arcs are reliably extinguished.
  • the second arc guide arrangement 23 is arranged on the underside 42 of the first fixed contact carrier 8 facing away from the upper side 9 of the first fixed contact carrier 8. It comprises a first baffle, which is likewise formed by the first fixed contact carrier 8, and a second baffle 34, which is divided into a first part 35 and a second part 36.
  • the first part 35 of the second baffle 34 is fixedly connected to the switching bridge 19 and thus moves together with the bridge switching piece 18.
  • the second part 36 of the second baffle 34 is immovably held in the housing 6.
  • the second baffle 34 is similar to the second baffle 29 of the first arc guide assembly 22, starting from the second contact 11 toward a second eraser 37.
  • the second eraser 37 is identical to the first eraser 32 constructed and arranged on the bottom 42 of the first fixed contact carrier 8.
  • the first fixed contact carrier 8 thus extends between the two erasers 32, 37 therethrough.
  • the second deletion device 37 is identical to the first deletion device 32, so that in this regard reference may be made to the description of the first deletion
  • the second baffle 34 extends from the second contact 11, initially in a vertical direction downwards and thus extends from the top 9 of the first fixed contact carrier 8 to the bottom 42 thereof.
  • the second guide plate 34 continues horizontally in the direction of the second deletion device 37. Subsequently, it continues to run obliquely down to the end, at which it encloses the second deletion device 37 together with the first fixed contact carrier 8.
  • the arc guiding arrangements and arc drive arrangements are provided on the second contact pair 17. however
  • the current direction of an arc between the contacts 10, 11 of the first contact pair 12 is spatially aligned in an opposite direction than an arc between the contacts 15, 16 of the second contact pair 17.
  • an arc forms on the first contact pair 12 from the first contact 10 to the second contact 11 with a current direction vertically upward.
  • an arc is formed in the direction from the second contact 16 to the first contact 15 vertically downward.
  • the magnetic field of the arc runner assembly 24 is to be aligned on the first contact pair 12 in a different direction than on second contact pair 17. It should be noted that it is basically desirable that in a first current direction both arcs at the two contact pairs 12, 17 respectively in the first erasers 32 and in a second current direction in the respective second erasers 37 is driven so that the Arcs of the two pairs of contacts 12, 17 go through the same distance until they are driven into the respective extinguishing devices, and so the two arcs are deleted as possible simultaneously.
  • the second extinguishing device 37 comprises a frame 38, which has walls 39 of insulating material and in which the individual quenching plates 33 are accommodated. In a direction away from the switching bridge 19 direction, the extinguishing devices on exhaust openings 40, which are aligned with a housing opening 41 of the housing 6.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP11191216.8A 2011-11-29 2011-11-29 Appareil de commutation pour un fonctionnement à courant continu Withdrawn EP2600371A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11191216.8A EP2600371A1 (fr) 2011-11-29 2011-11-29 Appareil de commutation pour un fonctionnement à courant continu
EP12794313.2A EP2786388B1 (fr) 2011-11-29 2012-11-28 Appareil de commutation pour un fonctionnement à courant continu
PL12794313T PL2786388T3 (pl) 2011-11-29 2012-11-28 Łącznik odpowiedni do pracy stałoprądowej
PCT/EP2012/073792 WO2013079508A1 (fr) 2011-11-29 2012-11-28 Appareil de commutation convenant à un fonctionnement en courant continu
US14/360,946 US20140347151A1 (en) 2011-11-29 2012-11-28 Switching device suitable for direct-current operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11191216.8A EP2600371A1 (fr) 2011-11-29 2011-11-29 Appareil de commutation pour un fonctionnement à courant continu

Publications (1)

Publication Number Publication Date
EP2600371A1 true EP2600371A1 (fr) 2013-06-05

Family

ID=47263353

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11191216.8A Withdrawn EP2600371A1 (fr) 2011-11-29 2011-11-29 Appareil de commutation pour un fonctionnement à courant continu
EP12794313.2A Active EP2786388B1 (fr) 2011-11-29 2012-11-28 Appareil de commutation pour un fonctionnement à courant continu

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12794313.2A Active EP2786388B1 (fr) 2011-11-29 2012-11-28 Appareil de commutation pour un fonctionnement à courant continu

Country Status (4)

Country Link
US (1) US20140347151A1 (fr)
EP (2) EP2600371A1 (fr)
PL (1) PL2786388T3 (fr)
WO (1) WO2013079508A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927927A1 (fr) * 2014-04-02 2015-10-07 Schaltbau GmbH Protection courant continu ayant une capacité de commutation accrue pour des charges à courant alternatif et polarisation dans le sens opposé à la direction de courant prédominante
CN111584292A (zh) * 2019-05-21 2020-08-25 杭州德睿达电气有限公司 一种直流快速断路器的灭弧罩

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9129761B2 (en) 2012-12-20 2015-09-08 Eaton Electrical Ip Gmbh & Co. Kg Switching device suitable for direct current operation
GB201820594D0 (en) * 2018-12-18 2019-01-30 Eaton Intelligent Power Ltd Contact unit for a switching device and switching device
GB2582307A (en) 2019-03-18 2020-09-23 Eaton Intelligent Power Ltd Switching device for fast disconnection of short-circuit currents
KR102196740B1 (ko) * 2019-04-05 2020-12-30 엘에스일렉트릭(주) 직류 기중 회로 차단기용 소호부 구조체

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640804A1 (de) * 1966-04-09 1970-12-17 Licentia Gmbh Elektrisches Schaltgeraet
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
EP0473013A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des chambres d'extinction utilisées alternativement selon la polarité appliquée à cet appareil
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2463876A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640804A1 (de) * 1966-04-09 1970-12-17 Licentia Gmbh Elektrisches Schaltgeraet
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
EP0473013A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des chambres d'extinction utilisées alternativement selon la polarité appliquée à cet appareil
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927927A1 (fr) * 2014-04-02 2015-10-07 Schaltbau GmbH Protection courant continu ayant une capacité de commutation accrue pour des charges à courant alternatif et polarisation dans le sens opposé à la direction de courant prédominante
US9558899B2 (en) 2014-04-02 2017-01-31 Schaltbau Gmbh Direct-current contactor with additional switching capability for AC loads and a polarity against the preferential current direction
CN111584292A (zh) * 2019-05-21 2020-08-25 杭州德睿达电气有限公司 一种直流快速断路器的灭弧罩

Also Published As

Publication number Publication date
EP2786388B1 (fr) 2017-05-31
PL2786388T3 (pl) 2017-11-30
EP2786388A1 (fr) 2014-10-08
WO2013079508A1 (fr) 2013-06-06
US20140347151A1 (en) 2014-11-27

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