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EP1992003B1 - Dispositif de coupure en surintensité - Google Patents

Dispositif de coupure en surintensité Download PDF

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Publication number
EP1992003B1
EP1992003B1 EP06706014.5A EP06706014A EP1992003B1 EP 1992003 B1 EP1992003 B1 EP 1992003B1 EP 06706014 A EP06706014 A EP 06706014A EP 1992003 B1 EP1992003 B1 EP 1992003B1
Authority
EP
European Patent Office
Prior art keywords
current
state
contact system
switching apparatus
contact
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
EP06706014.5A
Other languages
German (de)
English (en)
Other versions
EP1992003A1 (fr
Inventor
Jörg DORN
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1992003A1 publication Critical patent/EP1992003A1/fr
Application granted granted Critical
Publication of EP1992003B1 publication Critical patent/EP1992003B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
    • H01H71/43—Electrodynamic release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H79/00—Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/222—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion

Definitions

  • the invention relates to an overcurrent switching device for medium or high voltage applications with current detection means for transferring a contact system assigned to them when a threshold current is exceeded from a first state to a second state, wherein the lying in a first branch current detection means are arranged downstream via coupling means actuating means, which Actuating means for transferring the lying in a second branch circuit contact system are formed from the first to the second state.
  • An overcurrent switching device of the type mentioned is for example from the DE 100 02 870 A1 known. Other similar devices are out DE 10 47 915 B and from EP 1 526 560 A2 known. The closest prior art is the DE 3629040 A1 which describes a low-voltage vacuum switch of comparable operating principle.
  • a connection conductor has a deformable portion as current detection means.
  • the deformable section is deformed when a threshold current is exceeded such that a contact system is transferred from a first state to a second state.
  • the deformable portion is also used here to form the contact system by forming the contact system together with a contact part.
  • Object of the present invention is to provide an overcurrent switching device that can be flexibly and precisely designed according to the particular requirements.
  • An essential advantage of the overcurrent switching device is that in her the current detection means and the coupling and actuating means are assemblies or elements by themselves, and thus can be produced by itself and measured accordingly; This also applies to the contact system, because it forms a system for itself, act on the actuating means. All this allows a precise adjustment and a large adjustment range of the threshold current, in which the contact system from its first to its second state can be transferred.
  • the contact system can advantageously be used flexibly in that the first state of the contact system can be the open state and the second state can be the closed state of the contact system or vice versa, so that an opening or a closing overcurrent switching device depends on the respective requirements in a simple manner is trained.
  • the advantageous possibility is given to effect a switching operation in the second current branch in the event of an overcurrent in the first current branch.
  • an electromagnetic force acts in an advantageous manner between the parallel conductors with opposite current conduction, so that the deformable portion is deformed when a threshold current is exceeded by this force and transferred from a normal position to a working position.
  • the threshold current is simple and flexible adjustable over the deformability of the deformable section.
  • the coupling means comprise a blocking element fixedly connected to the deformable section.
  • a blocking element for example a retaining pin, is a simple way of coupling the current-detecting means with the actuating means.
  • the actuating means comprise a spring-loaded actuator having such a configuration that, in a blocking element in the normal position of the deformable portion, the actuator is held in a cocked spring position and released in a working position of the deformable portion.
  • a spring-loaded actuator having such a configuration that, in a blocking element in the normal position of the deformable portion, the actuator is held in a cocked spring position and released in a working position of the deformable portion.
  • the actuator may be designed in different ways, e.g. as a pestle.
  • the actuating member is a movable, by means of the spring tensionable carriage with a rigidly connected guide rod.
  • a slide is particularly durable or releasable by the blocking element.
  • the contact system is formed of a rigidly connected to the actuating means moving contact for forming a conductive connection between a first and a second mating contact.
  • the mating contacts can both be configured as a fixed contacts.
  • Such a contact system can be converted in a simple manner by the actuating means from its first in its second state.
  • the invention further relates to a bridging device for an electronic module, as described in the aforementioned earlier international patent application PCT / DE2005 / 001147 can be removed, and has set itself the task of such a bridging device for an electronic module so educate that it has a flexible structure with precisely adjustable threshold current.
  • the object according to the invention serves a bridging device for an electronic module with an overcurrent switching device in one of the embodiments described above, wherein the current detection means for transfer of their associated contact system when a threshold current in the electronics module from a first state in which the electronics module to a Circuit arrangement is connected, in a second state in which the electronic module is bridged in the circuit arrangement, are formed.
  • This bridging device advantageously allows a flexible construction with precisely adjustable threshold current.
  • the bridging device thus forms an advantageous application of the overcurrent switching device according to the invention and can be used, for example, advantageously for bridging an electronic module according to the German Offenlegungsschrift DE 101 03 031 A1 deploy.
  • the contact system is conductively connected to terminals of the electronic module.
  • the current detection means detect the current of the electronic module.
  • FIG. 1 shows an overcurrent switching device ÜS1 a bridging device ÜB1 in an electronic module 1 with terminals 2 and 3, which via conductors 4 and 5 with a first mating contact 6 and a second mating contact 7, which are formed in the embodiment as the first fixed contact 6 and second fixed contact 7, and with a circuit unit 8 are connected.
  • the circuit unit 8 comprises schematically illustrated electronic components 9, for example a plurality of switching elements such as IGBTs, diodes and an intermediate circuit capacitor of an inverter, which are connected to each other via current detection means in the form of connecting conductors 10, 11 and other connections not shown in the figures (compare the circuit unit of the above mentioned German Offenlegungsschrift DE 101 03 031 A1 ).
  • the connecting conductors 10 and 11 are arranged in the circuit unit 8 such that an overcurrent occurring in the event of a fault flows through these connecting conductors 10 and 11.
  • the connecting conductors 10 and 11 are designed as busbars and connected to one another at one end, so that a current flowing in the circuit unit 8 current through the busbars 10 and 11 is guided in opposite directions.
  • the busbar 11 which is designed as a deformable busbar
  • coupling means 12 and 13 in the form of a retaining pin 12 made of an insulating material as a blocking element 12 is fixed, which extends through a recess 13 in the busbar 10 therethrough.
  • the coupling means 12, 13 are as actuating means 14, 15 and 18, a movable carriage 14, which is blocked by the retaining pin 12 and is biased by a spring 15 against an insulating body 16 of the electronic module, downstream.
  • a recess 17 of the insulating body 16 extends through a guide rod 18 of the carriage 14, at the end of a moving contact 19 is arranged, which forms a contact system 20 together with the first fixed contact 6 and the second fixed contact 7.
  • the Indian FIG. 1 shown state of the device corresponds to the normal Archzüstand the electronic module 1, in which usual operating currents flow within the electronic module 1.
  • a fault for example by a Short circuit within the electronic module 1 or a wrong control of a switching element, can flow through the discharge of the capacitor of the circuit unit 8, a significantly higher current than the usual operating current in the electronic module.
  • Due to the opposing leadership of the current through the busbars 10 and 11 is formed between these due to electromagnetic interaction, a force which pushes the busbars 10 and 11, while the deformable busbar 11 is deformed such that the fixed to the busbar 11 associated retaining pin 12 in the direction of the movement arrow A moves and releases the carriage 14.
  • a short-circuit current in the electronic module 1 thus causes a closure of the contact system 20, so that between the terminals 2 and 3 of the electronic module 1 via the conductors 4 and 5 and the fixed contacts 6 and 7 and the moving contact 19, the remaining components of the electronic module 1 are bridged.
  • a bridging of electronic modules in a circuit arrangement of a plurality of modules, for example in a series circuit, is particularly necessary if the functionality of the circuit arrangement is to be maintained in the event of failure of a single electronic module due to a malfunction.
  • FIG. 2 shows a further embodiment of an overcurrent switching device ÜS2 a bridging device ÜB2 in an electronic module 21.
  • Terminals'22 and 23 of the electronic module 21 are via conductors 24 and 25 with contacts 26 and 27 and connected to a circuit unit 28 with schematically represented electronic components 29, for example, figuratively not shown switching elements such as IGBTs, capacitors and diodes.
  • Connecting conductors 30 and 31 and other connections not shown in the figures are provided for connecting the components 29.
  • the connection conductors 30 and 31 are arranged in the circuit unit 28 such that an overcurrent occurring in the event of a fault flows through these connection conductors 30 and 31.
  • the connecting conductors 30 and 31 are connected together at one end and together with a coil 32 current detection means 30, 31, 32.
  • the coil 32 surrounds a portion of the connecting conductors 30, 31 and is via coupling means 33 and 34 in the form of connecting lines 33 and 34 coupled to actuating means 36 and 37.
  • the actuating means 36, 37 comprise a control device 36 having a control connection 37 for controlling an electrical switch 38, which forms the contact system 39 with the contacts 26 and 27.
  • FIG. 2 causes in case of failure of a semiconductor device driven by the capacitor of the circuit unit short-circuit current, an induction voltage in the coil 32, which is compared in the control device 36 with a threshold value. If the induction voltage is above the threshold value, then the switch 38 is closed via the control connection 37, so that the contact system 39 is closed off of the contacts 26, 27 and the switch 38, via the connection terminals 22, 23 and the conductors 24, 25 the remaining elements of the electronic module 21 are bridged. The switch 38 is thereby formed so that it after transferring to the second state, in the embodiment of the closed state, in remains in this state, even if after a decay of the short-circuit current, the induction voltage of the coil is no longer applied.
  • a bridging of electronic modules in a circuit arrangement of several modules, for example a series circuit, is particularly necessary if the functionality of the series circuit is to be maintained in the event of failure of a single electronic module due to a malfunction.
  • the switch 38 can be designed as a thyristor or as an electromagnet, wherein the control can be done either directly by the voltage induced in the coil 32 or depending on the desired precision, or via the control device 36, which can be configured for example as a simple trigger circuit.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)

Claims (8)

  1. Dispositif de coupure en surintensité pour des applications de moyenne tension ou de haute tension, comprenant des moyens ( 10, 11 ) de détection du courant pour le passage d'un système ( 20 ) de contact, qui leur est associé, lorsqu'un courant de seuil est dépassé, d'un premier état à un deuxième état, dans lequel, en aval des moyens ( 10, 11 ) de détection du courant, se trouvant dans une première branche de courant, sont montés, par des moyens ( 12, 13, 33, 34 ) d'accouplement, des moyens ( 14, 15, 18 ) d'actionnement, lesquels sont constitués pour le passage du premier au deuxième état du système ( 20 ) de contact se trouvant dans une deuxième branche de courant,
    dans lequel
    les moyens ( 10, 11 ) de détection du courant comprennent deux tronçons ( 10, 11 ) de barre de courant, qui s'étendent parallèlement l'un à l'autre, dans lesquels le courant passe en sens contraire et dont l'un ( 11 ), au moins, est déformable, le tronçon ( 11 ) déformable passant d'une position normale à une position de travail, lorsque le courant de seuil est dépassé.
  2. Dispositif de coupure en surintensité suivant la revendication 1,
    caractérisé en ce que
    les moyens ( 12, 13 ) de couplage comprennent un élément ( 12 ) de blocage relié rigidement au tronçon ( 11 ) déformable.
  3. Dispositif de coupure en surintensité suivant la revendication 2,
    caractérisé en ce que
    les moyens ( 14, 15, 18 ) d'actionnement comprennent un organe ( 14 ) d'actionnement, qui peut être soumis à l'action d'un ressort et qui a une constitution telle que, pour un élément ( 12 ) de blocage dans la position normal du tronçon ( 11 ) déformable, l'organe ( 14 ) d'actionnement est maintenu dans une position par le ressort ( 15 ) bandé et dans une position de travail du tronçon ( 11 ) déformable est libéré.
  4. Dispositif de coupure en surintensité suivant la revendication 3,
    caractérisé en ce que
    l'organe ( 14 ) d'actionnement est un chariot ( 14 ) mobile, qui peut être soumis à l'action du ressort ( 15 ) et qui a une barre ( 18 ) de guidage reliée de manière rigide.
  5. Dispositif de coupure en surintensité suivant l'une des revendications précédentes,
    caractérisé en ce que
    le système ( 20 ) de contact est formé d'un contact ( 19 ) mobile relié rigidement aux moyens ( 14, 15, 18 ) d'actionnement pour la constitution d'une liaison conductrice entre un premier contact ( 6 ) et un deuxième contre-contact ( 6, 7 ).
  6. Dispositif de shuntage d'un module ( 1 ) électronique comprenant un dispositif de coupure en surintensité suivant l'une des revendications précédentes, les moyens ( 10, 11 ) de détection du courant étant constitués, pour le passage du système ( 20 ) de contact qui leur est associés, lorsqu'un courant de seuil est dépassé dans le module ( 1 ) électronique, d'un premier état, dans lequel le module électronique est raccordé à un montage à un deuxième état, dans lequel le module électronique est shunté dans le montage.
  7. Dispositif de shuntage suivant la revendication 6, caractérisé en ce que
    le système ( 20 ) de contacts est relié d'une manière conductrice à des bornes ( 2, 3 ) de connexion du module ( 1 ) électronique.
  8. Dispositif de shuntage suivant l'une des revendications 6 ou 7,
    caractérisé en ce que
    les moyens ( 10, 11 ) de connexion du courant détectent le courant du module ( 1 ) électronique.
EP06706014.5A 2006-02-23 2006-02-23 Dispositif de coupure en surintensité Not-in-force EP1992003B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2006/000345 WO2007095874A1 (fr) 2006-02-23 2006-02-23 Dispositif de coupure en surintensité

Publications (2)

Publication Number Publication Date
EP1992003A1 EP1992003A1 (fr) 2008-11-19
EP1992003B1 true EP1992003B1 (fr) 2013-11-27

Family

ID=37031076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706014.5A Not-in-force EP1992003B1 (fr) 2006-02-23 2006-02-23 Dispositif de coupure en surintensité

Country Status (6)

Country Link
US (1) US7936548B2 (fr)
EP (1) EP1992003B1 (fr)
JP (1) JP4942771B2 (fr)
CA (1) CA2643129C (fr)
DE (1) DE112006003862A5 (fr)
WO (1) WO2007095874A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175112A1 (fr) 2011-06-21 2012-12-27 Abb Technology Ag Enceinte pour semi-conducteur de puissance avec mécanisme de contact
EP3061130B1 (fr) * 2013-12-17 2020-11-04 Siemens Aktiengesellschaft Module électronique de protection pour convertisseur hvdc
DE102017129657A1 (de) * 2017-07-10 2019-01-10 Dehn + Söhne Gmbh + Co. Kg Anordnung zur nicht-reversiblen Detektion und Anzeige von elektrischen Überströmen oder Stromgrenzwerten mittels eines vorkonfektionierten Leiters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047915B (de) * 1955-08-18 1958-12-31 Siemens Ag Hochspannungs-Schnellschalter mit Sperrmagnetausloesung, insbesondere UEberbrueckungsschalter zum Schutz von Reihenkondensatoren
DE10002870A1 (de) * 2000-01-24 2001-08-23 Abb Research Ltd Vorrichtung zum Begrenzen eines Stromes
EP1526560A2 (fr) * 2003-10-25 2005-04-27 ABB PATENT GmbH Disjoncteur électrique

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Publication number Priority date Publication date Assignee Title
US3215896A (en) * 1962-10-04 1965-11-02 Gen Electric Fast response overload protection circuit
NO118930B (fr) * 1965-04-20 1970-03-02 Ericsson Telefon Ab L M
DE2360037A1 (de) 1973-12-01 1975-06-12 Danfoss As Sicherheitsschaltung fuer ein elektrisches geraet
FR2426973A1 (fr) * 1978-05-23 1979-12-21 Laprom Corp Nv Disjoncteur de courant de fuite
JPS59156347A (ja) * 1983-02-26 1984-09-05 オ−ジ−技研株式会社 部分浴治療装置
JPS60130012A (ja) * 1983-12-16 1985-07-11 株式会社リコー 安全装置
DE3544650A1 (de) 1984-12-20 1986-06-26 General Electric Co., Schenectady, N.Y. Hochgeschwindigkeits-kontakttreiber fuer einen elektrischen schalter
US4667071A (en) * 1985-08-30 1987-05-19 General Electric Company Low voltage vacuum circuit interrupter
EP0303698A4 (fr) * 1987-02-24 1990-03-27 Vnii Pk I Avtomatizi Interrupteur limiteur de courant.
FR2651915B1 (fr) * 1989-09-13 1991-11-08 Merlin Gerin Disjoncteur statique ultra-rapide a isolement galvanique.
IT1303664B1 (it) * 1998-12-24 2001-02-21 Abb Ricerca Spa Circuito elettronico di pilotaggio per attuatore bistabileattivato da piezoelettrici,particolarmente per dispositivi
JP3737372B2 (ja) * 2001-02-26 2006-01-18 株式会社日立製作所 変流器入力型電源装置
US6728085B2 (en) * 2001-05-21 2004-04-27 Eaton Corporation Circuit breaker with shunt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047915B (de) * 1955-08-18 1958-12-31 Siemens Ag Hochspannungs-Schnellschalter mit Sperrmagnetausloesung, insbesondere UEberbrueckungsschalter zum Schutz von Reihenkondensatoren
DE10002870A1 (de) * 2000-01-24 2001-08-23 Abb Research Ltd Vorrichtung zum Begrenzen eines Stromes
EP1526560A2 (fr) * 2003-10-25 2005-04-27 ABB PATENT GmbH Disjoncteur électrique

Also Published As

Publication number Publication date
CA2643129C (fr) 2014-07-22
WO2007095874A1 (fr) 2007-08-30
EP1992003A1 (fr) 2008-11-19
DE112006003862A5 (de) 2009-01-29
US7936548B2 (en) 2011-05-03
CA2643129A1 (fr) 2007-08-30
US20090257165A1 (en) 2009-10-15
JP4942771B2 (ja) 2012-05-30
JP2009527878A (ja) 2009-07-30

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