EP1884969A2 - Protection pour fonctionnement à courrant continu et courrant alternatif - Google Patents

Protection pour fonctionnement à courrant continu et courrant alternatif Download PDF

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Publication number
EP1884969A2
EP1884969A2 EP07012610A EP07012610A EP1884969A2 EP 1884969 A2 EP1884969 A2 EP 1884969A2 EP 07012610 A EP07012610 A EP 07012610A EP 07012610 A EP07012610 A EP 07012610A EP 1884969 A2 EP1884969 A2 EP 1884969A2
Authority
EP
European Patent Office
Prior art keywords
arc
contact
contactor
contact point
adjacent
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
Application number
EP07012610A
Other languages
German (de)
English (en)
Other versions
EP1884969B1 (fr
EP1884969A3 (fr
Inventor
Robert Kralik
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.)
Schaltbau GmbH
Original Assignee
Schaltbau 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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP1884969A2 publication Critical patent/EP1884969A2/fr
Publication of EP1884969A3 publication Critical patent/EP1884969A3/fr
Application granted granted Critical
Publication of EP1884969B1 publication Critical patent/EP1884969B1/fr
Active 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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

Definitions

  • the invention relates to a contactor for DC and AC operation with at least one contact point with a fixed contact and a movable contact, at least one adjacent to the contact point arranged permanent magnet for generating a permanent magnetic blowing field and at least one adjacent to the contact point arranged coil for generating an electromagnetic blow field Blowing a resulting arc when opening the contact point in at least one extinguishing device.
  • Such contactors are used for example in railway operation for switching loads and for interrupting circuits with high currents or high voltages.
  • switching operation i.
  • an arc is created between the fixed contact and the movable contact.
  • This arc maintains the flow of current between the contacts.
  • the arc releases a large amount of heat, which leads to the burning of the contacts and thus reduces the life of the contactor.
  • the entire area affected by the influence of the arc is subject to very high thermal loads. It is therefore a quick extinction of the arc required.
  • a contactor for use in DC operation with a constant current direction usually has permanent magnetic blast fields, which are arranged so that their field direction is perpendicular to the arc.
  • the Blasfelder practice a force on the arc, the Lorenzkraft, through which the arc is driven in the direction of a quenching device.
  • a circuit breaker in which a permanent magnet and a coil for generating a blowing field are combined.
  • the contact or interruption point of the circuit breaker comprises a fixed contact which is connected to a first supply line and a movable contact which is connected via a stranded wire to a second supply line.
  • a permanent magnet and a blow coil are arranged, wherein the blow coil is connected to the same supply line as the movable contact.
  • the resulting arc is blown over the blowing field generated by the permanent magnet in the direction of the catching shoe and jumps over to this. Since the fishing boot is electrically connected to the coil, this activates the coil. The coil then builds up an electromagnetic blowing field that blows the arc into an arc quenching device.
  • a disadvantage of this circuit breaker is that the movable contact with a flexible strand must be connected to the supply line and has a large opening stroke.
  • the fishing boot has a complex geometry and must surround the movable contact on at least two opposite sides.
  • a contactor which can be used for DC operation, bidirectional DC and AC operation and a rapid arc extinction, excluding a critical current range causes.
  • a structurally simple structure and thus an economical production must be considered.
  • the invention provides that the contactor has at least one further contact point, wherein the movable contacts are arranged on a contact bridge, adjacent to each contact point at least one permanent magnet is arranged and the two contact points associated permanent magnets are polarized in the opposite direction.
  • an arc guide plate is arranged adjacent to each contact point and isolated from the fixed contacts, and the respective blow coil is connected in an electrically conductive manner to the respective fixed contact and the respective arc guide plate.
  • the coils are activated only when the resulting arcs when opening the contact points, driven by the strong permanent magnetic Blasfeldem, skip from the fixed contacts on the arc guide. As a result, a comparatively small dimensioning of the coils is possible and overheating is avoided.
  • pole plates arranged adjacent to the contact points may be associated with the permanent magnets.
  • the pole plates produce an enlarged, uniform permanent-magnetic blow field, which acts primarily in the area of the contact points. On the arcs that arise when opening the contacts so immediately affect the permanent magnetic blowing fields and drive the arcs quickly from the contact points. Contact erosion is thus reduced.
  • the bladder coils are assigned pole plates and these pole plates are arranged adjacent to the arc guide plates.
  • the coils are only activated when the arcs jump over the arc guide plates after passing through the permanent magnetic areas.
  • the polar plates of the coils form a homogeneous electromagnetic blowing field in the area of the arc guide plates and in the arc extinguishing area. The arcs located on the arc guide plates are thus driven away from the permanent magnetic areas independently of the direction of the current and stretched.
  • exactly one extinguishing device is arranged adjacent to the arc guide plates. About the Blasfelder the arcs are driven into the extinguishing device and stretched there and cooled and thus extinguished.
  • the quenching device may be, for example, quenching plates or ceramic bodies arranged parallel to one another. Since, depending on the current direction, the arcs of both contact points are blown into the same extinguishing device, a space-saving design of the contactor is possible.
  • Fig. 1 is a perspective view of the interior of a contactor 1 is shown.
  • the contactor comprises two contact points 2, 3 each having a fixed contact 4, 5 and a respective movable contact 6, 7.
  • the movable contacts 6, 7 are arranged on a common contact bridge 8.
  • the contact bridge 8 can be moved by a magnetic drive (not shown) and transferred from a closed position in which the movable contacts 6, 7, the fixed contacts 4, 5, in an open position. In the open position, the movable contacts 6, 7 are separated from the fixed contacts 4, 5.
  • the arc guide plates 9, 10 are each insulated by an air gap 11, 12 of the fixed contacts 4, 5.
  • the permanent magnets 13, 14 are mounted so that their magnetic field perpendicular to the arcs 15, 16 resulting from the opening of the contact points 2, 3 extends.
  • the direction of the magnetic field of the permanent magnet 13 arranged at the contact point 2 is opposite to the direction of the magnetic field of the permanent magnet 14 arranged at the contact point 3.
  • the contactor 1 further comprises two coils 17, 18 which are arranged adjacent to the permanent magnets 13, 14.
  • the coil 17 is electrically connected to the fixed contact 4 of the contact point 2 and the arc guide plate 9 arranged adjacent thereto.
  • the coil 18 is electrically conductively connected to the fixed contact 5 of the contact point 3 and the arc guide plate 10.
  • the Lichtbogenleitbleche 9, 10 are shaped so that they adjacent to the contact points 2, 3 form a Lichtbogenleitschacht 19 which is substantially perpendicular to the contact bridge 8 and through which the arcs 15, 16 are blown through the Blasfelder of the coils 17, 18. Following this arc duct 19, the arc guide plates 9, 10 extend. Adjacent to the arc guide plates 9, 10, an arc quenching device 24 is arranged.
  • the arranged at the contact point 2 permanent magnet 13 is associated with a Polplattencover 20, wherein the two pole plates are on opposite sides of the contact bridge 8. Since the contact point 3 is formed essentially analogously to the contact point 2, the permanent magnet 14 is likewise a pole plate pair 21 assigned, the pole plates are located on opposite sides of the contact bridge 8. In Fig. 1, only one pole plate of the pole plate pairs 20, 21 can be seen for each contact point 2, 3.
  • the pole plates of the pole plate pairs 20, 21 are made of magnetizable material and are polarized by the permanent magnets 13 and the permanent magnets 14 and thus produce a homogeneous permanent magnetic blowing field.
  • the pole plate pairs 20, 21 are designed so that the magnetic fields generated by them penetrate the region of the contact points 2, 3.
  • the coil 17 and the coil 18 is each associated with a Polplattencru 22 and a Polplattencru 23.
  • the pole plates of the pole plate pairs 22, 23 are shaped in such a way that, above all, they extend over the region of the arc guide shaft 19 and the arc guide plates 9, 10. Since the coils 17, 18 are only activated when the first arc root jumps over to one of the arc guide plates 9, 10, the electromagnetic blowing fields must act primarily in this area.
  • Fig. 1 the contactor is shown in the opening moment. Via the magnetic drive (not shown), the contact bridge 8 is moved downward, so that the movable contacts 6, 7 arranged thereon are separated from the fixed contacts 4, 5.
  • the arcs 15, 16 produced by the permanent magnet 13 and the pole plates 20 and the permanent magnetic blown field generated by the oppositely polarized permanent magnet 14 and the pole plates 21 act immediately on the arcs 15, 16 ,
  • the circuit in the contactor 1 is now still closed, the current from the fixed contact 4 via the coil 17, the arc guide plate 9, the arc 16, the arc guide plate 10 and the coil 18 to the fixed contact 5 flows.
  • the coil 17 is now activated and also generates an electromagnetic blow field.
  • the arc 16 is blown out of the arc guide shaft 19 and expands on the arc guide plates 9, 10 until it is finally extinguished in the arc quenching device 24.
  • the electromagnetic blow field of the coil 18 is insufficient to achieve the skipping of the second arc root of the arc 16 from the contact bridge 8 to the arc guide plate 9.
  • the arc 15 does not go out in this case initially and burns in series to arc 16 on.
  • the arc 15 is stretched in this case by the permanent magnetic blowing field of the permanent magnet 13 continues to extinction. As soon as the arc 15 has been extinguished, the arc 16 is also extinguished.
  • the permanent magnet 13 thus advantageously contributes to the control of the critical current range.
  • the contactor 1 can also be used for alternating current operation, since the jump of an arc 15, 16 to the arc guide surface 9, 10 one of the coils 17, 18 is activated, which generates an electromagnetic blowing field whose direction changes with the current direction and thus always leads to it in that the corresponding arc 15, 16 is driven into the extinguishing device 24 and extinguished there.
  • the permanent magnets 13, 14 are selected so that either the arc 15 or the Arc 16 in AC operation during a half-wave to the respective arc guide plate 9, 10 is blown and the corresponding coil 17, 18 is activated. If the current direction changes at the next half-wave, the direction of the electromagnetic blowing field also reverses and the arc continues to be blown in the direction of the arc-quenching device 24.
EP07012610.7A 2006-08-01 2007-06-27 Protection pour fonctionnement à courrant continu et courrant alternatif Active EP1884969B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006035844A DE102006035844B4 (de) 2006-08-01 2006-08-01 Schütz für Gleichstrom- und Wechselstrombetrieb

Publications (3)

Publication Number Publication Date
EP1884969A2 true EP1884969A2 (fr) 2008-02-06
EP1884969A3 EP1884969A3 (fr) 2008-05-07
EP1884969B1 EP1884969B1 (fr) 2015-01-07

Family

ID=38512434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07012610.7A Active EP1884969B1 (fr) 2006-08-01 2007-06-27 Protection pour fonctionnement à courrant continu et courrant alternatif

Country Status (9)

Country Link
US (1) US7417520B2 (fr)
EP (1) EP1884969B1 (fr)
JP (1) JP5041311B2 (fr)
KR (1) KR101312711B1 (fr)
CN (1) CN100570787C (fr)
DE (1) DE102006035844B4 (fr)
ES (1) ES2528481T3 (fr)
RU (1) RU2417475C2 (fr)
ZA (1) ZA200706409B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2393094A1 (fr) 2010-06-07 2011-12-07 Eaton Industries GmbH Unité de commutation dotée d'unités d'extinction d'arc
WO2012010227A1 (fr) * 2010-07-22 2012-01-26 Schaltbau Gmbh Contacteur pour cc à commutation unidirectionnelle
EP3293748A1 (fr) * 2016-09-09 2018-03-14 Microelettrica Scientifica S.p.A. Dispositif contacteur amélioré pour applications de commutation de courant élevé
CN110462777A (zh) * 2017-03-31 2019-11-15 Ls产电株式会社 具有电弧熄灭装置的直流断路器

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US7868720B2 (en) * 2007-11-01 2011-01-11 Tyco Electronics Corporation India Hermetically sealed relay
DE102007054958A1 (de) * 2007-11-17 2009-06-04 Moeller Gmbh Schaltgerät für Gleichstrom-Anwendungen
ES2442872T3 (es) 2008-12-12 2014-02-14 Tyco Electronics Amp Gmbh Puente de contactos con imanes de soplado
DE102009013337B4 (de) * 2009-03-16 2011-01-27 Schaltbau Gmbh Lichtbogenresistenter Schütz
DE102011017143B4 (de) 2010-04-14 2012-10-11 Fahrleitungsbau Gmbh Streckentrenner für Fahrleitungen elektrischer Bahnen
PL2431989T3 (pl) * 2010-09-20 2015-03-31 Secheron Sa Elektromechaniczny wyłącznik instalacyjny
EP2463876A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction
KR101354405B1 (ko) * 2011-06-07 2014-01-22 후지쯔 콤포넌트 가부시끼가이샤 전자계전기 및 전자계전기의 제조방법
EP2551867A1 (fr) 2011-07-28 2013-01-30 Eaton Industries GmbH Protection pour courant continu
JP5777440B2 (ja) * 2011-08-03 2015-09-09 富士通コンポーネント株式会社 電磁継電器及び電磁継電器の製造方法
DE102011118418B4 (de) * 2011-11-12 2015-07-16 Ellenberger & Poensgen Gmbh Schaltsystem
CN102592909B (zh) * 2012-02-22 2013-12-25 西安交通大学 一种直流断路器磁吹灭弧装置
EP2650894B1 (fr) * 2012-04-12 2018-06-06 ABB Oy Appareil de commutation de courant électrique
JP5986419B2 (ja) * 2012-04-13 2016-09-06 富士電機株式会社 接点装置及びこれを使用した電磁開閉器
CN104685594B (zh) * 2012-09-27 2017-10-24 伊顿电气Ip两合公司 具有用来与电流方向无关地消灭电弧的装置的直流电开关
DE102012110410A1 (de) * 2012-10-31 2014-04-30 Eaton Industries (Austria) Gmbh Gleichstromschaltgerät
CN103094733B (zh) * 2013-02-04 2016-08-03 四川华丰企业集团有限公司 采用磁吹灭弧的高压电连接器
CN103198984B (zh) * 2013-04-10 2015-05-27 四川中光防雷科技股份有限公司 一种高安全性电涌保护器
DE102014001730A1 (de) * 2014-02-08 2015-08-13 Ellenberger & Poensgen Gmbh Schaltsystem
DE102014002902B4 (de) * 2014-02-27 2019-08-01 Schaltbau Gmbh Löschkammer für ein Schütz und ein Schütz zum Löschen von Lichtbögen
DE102014004843A1 (de) 2014-04-02 2015-10-08 Schaltbau Gmbh Gleichstromschütz mit zusätzlicher Schalttauglichkeit für Wechselstromlasten und Polung entgegen der Vorzugsstromrichtung
CN103943430A (zh) * 2014-04-03 2014-07-23 西安交通大学 一种复合式交直流通用空气断路器及其灭弧方法
CN104157503A (zh) * 2014-08-27 2014-11-19 武汉长海电气科技开发有限公司 一种直流开关磁吹弧装置
US9373468B2 (en) 2014-09-16 2016-06-21 Tyco Electronics Corporation Arc control for contactor assembly
DE102015000796B4 (de) * 2015-01-22 2017-03-02 Schaltbau Gmbh Schaltgerät mit permanentmagnetischer Lichtbogenlöschung
US9406465B1 (en) * 2015-07-30 2016-08-02 Carling Technologies, Inc. Polarity insensitive arc quench
US9673004B1 (en) * 2016-03-25 2017-06-06 Eaton Corporation Electrical switching apparatus, and arc chamber assembly and associated circuit protection method
FR3050311B1 (fr) * 2016-04-15 2020-12-04 Schneider Electric Ind Sas Disjoncteur electrique a courant continu
CN106627606B (zh) * 2016-12-28 2018-09-07 西安沙尔特宝电气有限公司 一种基于以太网控制的司机控制器
EP3349231B1 (fr) * 2017-01-12 2023-07-19 ABB Schweiz AG Contacteur électromécanique
DE102017106300B4 (de) * 2017-03-23 2023-07-27 Schaltbau Gmbh Schaltgerät mit verbesserter permanentmagnetischer Lichtbogenlöschung
EP3389069B1 (fr) * 2017-04-11 2019-12-11 Microelettrica Scientifica S.p.A. Disjoncteur amélioré pour des applications à courant cc élevé ou à tension cc élevée, par exemple des applications industrielles et/ou ferroviaires
DE102017125685A1 (de) * 2017-11-03 2019-05-09 Schaltbau Gmbh Schaltgerät mit Lichtbogenlöscheinrichtung und Lichtbogenführung
US10236145B1 (en) * 2017-11-22 2019-03-19 Carling Technologies, Inc. High voltage DC circuit breaker with double break contacts
EP3624157A1 (fr) * 2018-09-17 2020-03-18 Microelettrica Scientifica S.p.A. Dispositif de commutation amélioré ou contacteur avec des capacités d'extinction d'arc élevées
CN111584293B (zh) * 2019-05-21 2022-06-10 杭州德睿达电气有限公司 一种直流快速断路器的触头系统
RU201052U1 (ru) * 2019-12-24 2020-11-25 Акционерное общество "Научно-производственное объединение "Электромашина" Контактор электромагнитный высоковольтный

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2393094A1 (fr) 2010-06-07 2011-12-07 Eaton Industries GmbH Unité de commutation dotée d'unités d'extinction d'arc
WO2011154380A1 (fr) 2010-06-07 2011-12-15 Eaton Industries Gmbh Unité de commutation munie d'unités d'extinction d'arc
US8921728B2 (en) 2010-06-07 2014-12-30 Eaton Electrical Ip Gmbh & Co. Kg Switch unit with arc-extinguishing units
WO2012010227A1 (fr) * 2010-07-22 2012-01-26 Schaltbau Gmbh Contacteur pour cc à commutation unidirectionnelle
RU2539360C2 (ru) * 2010-07-22 2015-01-20 Шальтбау ГмбХ Однонаправленно включающий контактор постоянного тока
US9224559B2 (en) 2010-07-22 2015-12-29 Schaltbau Gmbh Unidirectionally switching DC contactor
EP3293748A1 (fr) * 2016-09-09 2018-03-14 Microelettrica Scientifica S.p.A. Dispositif contacteur amélioré pour applications de commutation de courant élevé
WO2018046695A1 (fr) * 2016-09-09 2018-03-15 Microelettrica Scientifica S.P.A. Dispositif contacteur amélioré pour applications de commutation à courant élevé
RU2713460C1 (ru) * 2016-09-09 2020-02-05 Микроэлеттрика Шентифика С.П.А. Усовершенствованный контактор для сильноточных переключений
US11037745B2 (en) 2016-09-09 2021-06-15 Microelettrica Scientifica S.P.A. Contactor device for high current switching applications
CN110462777A (zh) * 2017-03-31 2019-11-15 Ls产电株式会社 具有电弧熄灭装置的直流断路器

Also Published As

Publication number Publication date
EP1884969B1 (fr) 2015-01-07
ZA200706409B (en) 2008-05-28
DE102006035844A1 (de) 2008-02-07
CN101118817A (zh) 2008-02-06
KR101312711B1 (ko) 2013-10-01
EP1884969A3 (fr) 2008-05-07
RU2007129883A (ru) 2009-02-10
JP2008078120A (ja) 2008-04-03
ES2528481T3 (es) 2015-02-10
RU2417475C2 (ru) 2011-04-27
CN100570787C (zh) 2009-12-16
KR20080012214A (ko) 2008-02-11
DE102006035844B4 (de) 2008-06-19
US20080030289A1 (en) 2008-02-07
US7417520B2 (en) 2008-08-26
JP5041311B2 (ja) 2012-10-03

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