EP2786385A1 - Schaltgeraet fuer gleichstromanwendungen - Google Patents
Schaltgeraet fuer gleichstromanwendungenInfo
- Publication number
- EP2786385A1 EP2786385A1 EP12777934.6A EP12777934A EP2786385A1 EP 2786385 A1 EP2786385 A1 EP 2786385A1 EP 12777934 A EP12777934 A EP 12777934A EP 2786385 A1 EP2786385 A1 EP 2786385A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- contact
- arrangement
- arc
- switching device
- 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.)
- Granted
Links
- 238000010791 quenching Methods 0.000 claims description 8
- 230000000171 quenching effect Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000037430 deletion Effects 0.000 claims 1
- 238000012217 deletion Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
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
- H01H33/18—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
- 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
- H01H1/2025—Bridging contacts comprising two-parallel bridges
-
- 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
- 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
-
- 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
- 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
Definitions
- the invention relates to a switching device for DC applications.
- the switching device comprises at least a first switching chamber for a first flow path and a second switching chamber for a second flow path, each flow path at least one
- Switch contact arrangement comprising a first contact and a second contact, wherein the two contacts in an on state of the
- Switching device in contact and in an off state of the switching device forming an isolating distance out of contact with each other, as well as each current path at least one extinguishing device for extinguishing an arc occurring between the contacts.
- Such a switching device is known from EP 2 061 053 A2.
- a switching device for DC applications there is proposed to use the housing of a switching device for AC applications, in addition, at least two permanent magnets are provided which have a magnetic field with substantially transverse to the separation distance of the current paths field lines.
- three switching chambers are provided in each case for a current path, each current path being assigned a movable switching contact element and two mutually opposite stationary switching contact elements.
- the three movable switching contact elements are common between one
- each current path has two separating sections, which, when the movable switching contact elements are open, extend between the ends thereof and the first and second stationary switching contact elements assigned to these ends form. When opening the switch contact elements forms along the
- Arc quenching can be deleted. There at
- DC applications the erasing of an arc can not be achieved due to a zero crossing of the current, as in AC applications, DC applications require the provision of a magnetic field which drives the arc in one of the arc extinguishing devices.
- a Lorentz force acts on a arc forming along the separation path, which drives the latter in the direction of one of the arc extinguishing devices.
- the arc is safely deleted in the arc quenching device.
- very high currents however, there is a risk that the arc on one of the permanent magnets overturns and burns this.
- a similar switching device shows DE 34 09 564 AI, which has two switching chambers, in each of which an arc quenching device and a
- Arc runner assembly is provided.
- the invention is achieved by a switching device for DC applications, which has at least a first switching chamber for a first current path and a second switching chamber for a second current path. At least one switching contact arrangement is provided for each current path, which has a first contact and a second contact, wherein the two contacts are kept in contact with one another in an on state of the switching device and in an off state of the switching device an isolating distance is formed. For each current path, at least one extinguishing device is furthermore provided for extinguishing an arc occurring between the contacts.
- a switching contact arrangement is provided for each current path, which has a first contact and a second contact, wherein the two contacts are kept in contact with one another in an on state of the switching device and in an off state of the switching device an isolating distance is formed.
- at least one extinguishing device is furthermore provided for extinguishing an arc occurring between the contacts.
- Arc runner assembly is provided, which is arranged in one of the two switching chambers and at least in the region of the switching contact arrangement of the respective Current path generates a magnetic field to the arc in the respective
- the switching device has a switching chamber in which a
- Arc switch assembly is provided, and a switching chamber, in which no
- Arc runner assembly is provided.
- the switching device is therefore suitable for both lower currents and high currents.
- the switching chamber with
- Arc runner assembly is suitable for lower currents, where there is a low risk that an arc will strike the arc runner assembly.
- the magnetic field of the arc runner assembly is also strong enough to handle as well
- Arcs of a smaller current to drive quickly in the extinguishing device Arcs of a smaller current to drive quickly in the extinguishing device.
- the switching chamber without arc runner arrangement is particularly suitable for high currents, since no arc runner arrangement is arranged in this switching chamber and thus the arc can not overturn on such an arc runner arrangement. This ensures that only small
- the arc can already receive an independent pulse, which drives them in the extinguishing device.
- the two switching chambers of the switching device are arranged side by side, so that the magnetic field of the arc runner assembly also radiates to the switching chamber without arc runner assembly and generates a Lorentz force on a resulting there arc.
- the current paths are the current paths
- the switching chambers can be formed separately from each other, in particular in a housing of the switching device by intermediate walls, wherein the intermediate walls are preferably made of an electrically insulating but magnetically permeable material.
- the two current paths can be used depending on the application, d. H. at low currents occurring the current path is used with arc runner assembly and at high currents occurring the current path is without
- the current paths can also be connected electrically in parallel or in series, so that through both current paths In principle, current flows and, depending on the occurring current strength and the resulting quenching behavior of one of the two current paths causes the extinction of an arc. As a result, the current flow maintained by the arcs is interrupted at one point, so that all further arcs go out as well.
- a third switching chamber can also be provided for a third flow path. Is then the arc runner assembly in the second
- this can be arranged between the first switching chamber and the second switching chamber.
- the magnetic field radiates the
- first switching chamber and the third switching chamber Arc guide assembly of the second switching chamber to the other two, namely the first switching chamber and the third switching chamber, from.
- Switching chamber is arranged a Lichtbogentreiberan instruct and the second switching chamber, which is located between the first and the third switching chamber, is free of a Lichtbogentreiberan whatsoever.
- the arc runner assembly may include two permanent magnets disposed on opposite sides of the switch contact assembly that generate a magnetic field with field lines across the gap.
- the arc runner arrangement may consist of a permanent magnet, which is provided above the switching contact arrangement, and which is arranged between two pole plates, which are located laterally on opposite sides of the switching contact arrangement.
- At least one arc guide arrangement is provided per switching contact arrangement, by means of which the arc is directed to the extinguishing device of the respective switching contact arrangement.
- Such an arc guide arrangement usually consists of baffles which extend from the contacts in the direction of the respective extinguishing device.
- Each switching arrangement may basically consist of a fixed contact and a movable contact, wherein the first contacts each on a in the Switching chamber fixed fixed contact carrier are arranged and the second contacts each arranged on a movable in the switching chamber
- Bridge arrangement are arranged.
- the bridge arrangement is used here for
- a double interruption with two contact pairs can also be provided per current path, two contact arrangements being provided for each current path and the second contacts being arranged on a movable bridge contact piece and the second contacts being electrically connected to one another via the bridge contact element.
- the two contact pairs each consisting of a first contact and a second contact, are thus connected in series.
- arcs are formed between each contact pair.
- the bridge switching pieces of all current paths can be actuated by a common bridge arrangement, so that by pressing an element, namely the bridge arrangement, all pairs of contacts or
- Figure 1 shows a partial longitudinal section through an inventive switching device
- FIG. 2 is a plan view of the switching device according to FIG. 1.
- Figure 1 shows the switching device 1 according to the invention in a partial longitudinal section with a housing 2, which comprises a lower part 3 and an upper part 4.
- Figure 2 shows a view into the switching device 1, wherein the upper part 4 is omitted, so that one can look in the lower part 3.
- the two figures 1 and 2 are described together below.
- the switching device 1 has three poles, d. H. three switching paths, namely a first
- each Switching track 5, 6, 7 is in a separate switching chamber, namely a first
- Switching chamber 8, a second switching chamber 9 and a third switching chamber 10 is arranged.
- the switching chambers 8, 9, 10 are electrically separated from each other by partitions 11, 12 of the housing 2, wherein the intermediate walls 11, 12 are preferably magnetically permeable.
- the three current paths 5, 6, 7 are identical in terms of their structure, wherein in the following the structure of
- the second flow path 6 within the second switching chamber 9 is shown in Figure 1 in longitudinal section.
- the second switching path 6 is formed twice interrupting and has a first switching contact arrangement 13 and a second
- Switch contact arrangement 16 The two switch contact arrangements 13, 16 are identical and mirror images of each other.
- the first switching contact arrangement 13, which is shown on the left side in FIG. 1, comprises a contact pair having a first contact 14 and a second contact 15.
- the second switching contact arrangement 16 having a second contact pair comprising a first contact 17 and a second contact 18 educated.
- the first contact 14 of the first switching contact arrangement 13 is arranged on a first fixed contact carrier 19.
- the first fixed contact carrier 19 is fixed and thus arranged immovably in the housing 2 of the switching device 1.
- the first contact 17 is arranged at a first free end of the first fixed contact carrier 19. At a this end facing away from the end of the first fixed contact carrier 19, a first terminal 23 is provided for the connection of the first current path 5 in a DC circuit.
- the second contact 15 of the first switch contact arrangement 13 is located on a bridge contact piece 20 of a bridge arrangement 21 and is movably arranged in the housing 2.
- the bridge switching piece 20 is vertically adjustable in the orientation shown in Figure 1 between a raised and a lowered position. In the raised position is the second contact 15 of the first
- Switch contact arrangement 13 in contact with the first contact 14. In a lowered position, the two contacts 14, 15 are out of contact. In this position, an isolating distance is formed between the first contact 14 and the second contact 15 along which an arc can form.
- the second switching contact arrangement 16 is identical to the first
- Switching contact arrangement 13 is formed.
- Switching contact arrangement 16 is located on a second fixed contact carrier 22 and is arranged at a first end of the second fixed contact carrier 22. At a this end remote from the end of the second fixed contact carrier 22, a second terminal 24 is provided.
- the second contact 18 of the second switching contact arrangement 16 is likewise arranged on the bridge contact piece 20, specifically on an end remote from the second contact 15 of the first switching contact arrangement 13.
- Bridge switching piece 20 is electrically conductive and connects the two second contacts 15, 18 electrically to each other.
- the second contact 18 of the second switching arrangement 16 is in contact with the first contact 17, wherein in the lowered position of
- Bridge switching piece 20 the two contacts 17, 18 are kept out of contact and forms an insulating gap between them, along which can also form an arc.
- a current can thus flow from the first terminal 23 via the first fixed contact carrier 19 to the first contact of the first switching contact arrangement 13, then on to the second contact 15 of the first switching contact arrangement 13 via the bridge contact piece 20 to the second contact 18 of the second switching contact arrangement 16 , From there, the current continues to flow to the first contact 17 of the second switching contact arrangement 16 via the second
- a switching bridge 30 is provided, which is arranged vertically displaceable in the housing 2 and the bridge switching piece 20 adjusted.
- the bridge switching piece 20 is pressed with its second contacts 15, 18 via a spring 31 against the first contacts 14, 17, wherein the spring 31 between the bridge contact piece 20 and the switching bridge 30 is supported.
- two erasing devices namely a first erasing device 27 and a second erasing device 28 are provided.
- the first erasing device 27 is the first switching contact arrangement 13 and the second
- the two erasing devices 27, 28 are each arranged on a side of the respective switching contact arrangement 13, 16 facing away from the switching bridge arrangement 21.
- Arc runner assembly 32 and a second arc runner assembly 33 wherein the first arc runner assembly 32 of the first switch contact arrangement 13 and the second arc runner assembly 33 of the second switch contact arrangement 16 is associated.
- the first arc runner assembly 32 includes two first permanent magnets 25 that are connected within the second switching chamber 9 to the first
- the first permanent magnets 25 are designed plate-shaped and arranged parallel to the intermediate walls 11, 12.
- the two first permanent magnets 25 are arranged rectified with respect to their magnetization, so that forms an approximately homogeneous magnetic field with field lines transverse to the separation direction between them.
- the field lines of the magnetic field also extend transversely to an arc, which forms between the first contact 14 and the second contact 15 of the first switching contact arrangement 13.
- a Lorenz force is generated by the magnetic field, which acts on the arc and drives it in the direction of the first extinguishing device 27.
- the second arc driver assembly 33 is similar to the first
- Arc runner assembly 32 constructed and includes two second
- Permanent magnets 26 which receive the second switching contact arrangement 16 between them.
- the magnetic field is in this case aligned in opposite to the magnetic field of the first permanent magnet 25.
- An arc, which forms between the first contact 17 and the second contact 18 of the second switching contact arrangement 16, has a current direction which is spatially opposite to the current direction of an arc between the contacts 14, 15 of the first switching contact arrangement 13. If, as shown in FIG. 1, an arc between the contacts 17, 18 of the second switching contact arrangement 16 has a current direction vertically downward, an arc between the contacts 14, 15 of the first switching contact arrangement has a current direction vertically upward. In order to ensure a safe erasure of the arcs, regardless of the current direction in the respective current path, must therefore in a first direction of the current
- Extinguishing device 27 and an arc at the second switching contact arrangement 16 are driven to the right in the second erasing device 28. To achieve this, therefore, the magnetic fields must be aligned in the opposite direction.
- the first flow path 5 and the third flow path 7 and the first switching chamber 8 and the third switching chamber 10 are identical to the second flow path 6 and the second switching chamber 9 is formed, but with the difference that in the first switching chamber 8 and the third switching chamber 10 no
- Arc guide assemblies are arranged. In the first switching chamber 8 and in the third switching chamber 10 thus no permanent magnets are arranged.
- the arc runner assemblies 32, 33 of the first current path 6 radiate to the adjacent switching chambers, namely the first switching chamber 8 and the third switching chamber 10, to also there a Lorenz force on a resulting
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12777934.6A EP2786385B1 (de) | 2011-11-29 | 2012-10-29 | Schaltgeraet fuer gleichstromanwendungen |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11191219.2A EP2600367A1 (de) | 2011-11-29 | 2011-11-29 | Schaltgerät für Gleichstromanwendungen |
EP12777934.6A EP2786385B1 (de) | 2011-11-29 | 2012-10-29 | Schaltgeraet fuer gleichstromanwendungen |
PCT/EP2012/071410 WO2013079269A1 (de) | 2011-11-29 | 2012-10-29 | Schaltgeraet fuer gleichstromanwendungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2786385A1 true EP2786385A1 (de) | 2014-10-08 |
EP2786385B1 EP2786385B1 (de) | 2016-12-21 |
Family
ID=47073468
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11191219.2A Withdrawn EP2600367A1 (de) | 2011-11-29 | 2011-11-29 | Schaltgerät für Gleichstromanwendungen |
EP12777934.6A Active EP2786385B1 (de) | 2011-11-29 | 2012-10-29 | Schaltgeraet fuer gleichstromanwendungen |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11191219.2A Withdrawn EP2600367A1 (de) | 2011-11-29 | 2011-11-29 | Schaltgerät für Gleichstromanwendungen |
Country Status (4)
Country | Link |
---|---|
US (1) | US9552944B2 (de) |
EP (2) | EP2600367A1 (de) |
PL (1) | PL2786385T3 (de) |
WO (1) | WO2013079269A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6548905B2 (ja) * | 2015-02-06 | 2019-07-24 | 富士通コンポーネント株式会社 | スイッチ |
DE102017106300B4 (de) * | 2017-03-23 | 2023-07-27 | Schaltbau Gmbh | Schaltgerät mit verbesserter permanentmagnetischer Lichtbogenlöschung |
US10236145B1 (en) * | 2017-11-22 | 2019-03-19 | Carling Technologies, Inc. | High voltage DC circuit breaker with double break contacts |
DE102017223401B4 (de) * | 2017-12-20 | 2019-10-10 | Schunk Carbon Technology Gmbh | Kontakteinheit und Verfahren |
EP3624157A1 (de) * | 2018-09-17 | 2020-03-18 | Microelettrica Scientifica S.p.A. | Verbesserte umschaltvorrichtung oder schütz mit hohen lichtbogenlöschfähigkeiten |
MX2021010614A (es) * | 2019-03-04 | 2021-12-10 | Climate Llc | Almacenamiento de datos y dispositivo de transferencia para un sistema de computación de inteligencia agrícola. |
KR102196740B1 (ko) * | 2019-04-05 | 2020-12-30 | 엘에스일렉트릭(주) | 직류 기중 회로 차단기용 소호부 구조체 |
FR3095890B1 (fr) * | 2019-05-06 | 2021-07-16 | Schneider Electric Ind Sas | Pôle limiteur d’interrupteur électrique et interrupteur électrique à courant continu comportant un tel pôle limiteur |
DE102020104258B4 (de) * | 2020-02-18 | 2022-09-29 | Schaltbau Gmbh | Schaltgerät mit zumindest zwei miteinander kommunizierenden Löschbereichen |
KR102542180B1 (ko) * | 2022-03-30 | 2023-06-14 | 오성기전 주식회사 | 직류 차단기의 아크 소호장치 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2332446A (en) * | 1941-01-13 | 1943-10-19 | Allen Bradley Co | Permanent magnet blowout for electric switches |
DE1915972U (de) * | 1962-12-06 | 1965-05-20 | Stotz Kontakt Gmbh | Lichtbogenloeschvorrichtung mit permanentmagnet. |
JPS59169010A (ja) * | 1983-03-17 | 1984-09-22 | 富士電機株式会社 | 消弧装置 |
US6480082B1 (en) * | 1996-12-25 | 2002-11-12 | Hitachi, Ltd. | Circuit breaker |
US6437671B1 (en) * | 1999-08-30 | 2002-08-20 | Eaton Corporation | Circuit interrupter with secure base and terminal connection |
US6995640B2 (en) * | 2000-05-16 | 2006-02-07 | General Electric Company | Pressure sensitive trip mechanism for circuit breakers |
US6933814B2 (en) * | 2003-05-13 | 2005-08-23 | General Electric Company | Phase-to-phase isolation of cassette type circuit breakers |
FR2916571B1 (fr) * | 2007-05-22 | 2009-09-11 | Schneider Electric Ind Sas | Chambre de coupure et disjoncteur equipe d'une telle chambre de coupure |
US7633365B2 (en) * | 2007-06-28 | 2009-12-15 | General Electric Company | Circuit breaker apparatus |
DE102007054958A1 (de) | 2007-11-17 | 2009-06-04 | Moeller Gmbh | Schaltgerät für Gleichstrom-Anwendungen |
FR2938969A1 (fr) * | 2008-11-21 | 2010-05-28 | Schneider Electric Ind Sas | Dispositif de coupure pour couper un courant continu bidirectionnel et installation a cellules photovoltaiques equipee d'un tel dispositif |
US8248194B2 (en) * | 2010-02-10 | 2012-08-21 | Siemens Industry, Inc. | Disconnect switch |
US8222983B2 (en) * | 2010-12-08 | 2012-07-17 | Eaton Corporation | Single direct current arc chamber, and bi-directional direct current electrical switching apparatus employing the same |
JP5710984B2 (ja) * | 2011-01-12 | 2015-04-30 | 富士電機株式会社 | 電磁接触器 |
JP5914065B2 (ja) * | 2012-03-12 | 2016-05-11 | 富士電機機器制御株式会社 | 開閉器 |
US9006601B2 (en) * | 2013-03-13 | 2015-04-14 | Eaton Corporation | Arc chamber for bi-directional DC |
-
2011
- 2011-11-29 EP EP11191219.2A patent/EP2600367A1/de not_active Withdrawn
-
2012
- 2012-10-29 EP EP12777934.6A patent/EP2786385B1/de active Active
- 2012-10-29 WO PCT/EP2012/071410 patent/WO2013079269A1/de active Application Filing
- 2012-10-29 US US14/360,954 patent/US9552944B2/en active Active
- 2012-10-29 PL PL12777934T patent/PL2786385T3/pl unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2013079269A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2600367A1 (de) | 2013-06-05 |
PL2786385T3 (pl) | 2017-03-31 |
US9552944B2 (en) | 2017-01-24 |
US20140319099A1 (en) | 2014-10-30 |
WO2013079269A1 (de) | 2013-06-06 |
EP2786385B1 (de) | 2016-12-21 |
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