EP1458072B1 - Dispositif de court-circuit pour utilisation dans des arrangements de basse et moyenne tension - Google Patents

Dispositif de court-circuit pour utilisation dans des arrangements de basse et moyenne tension Download PDF

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Publication number
EP1458072B1
EP1458072B1 EP04001251A EP04001251A EP1458072B1 EP 1458072 B1 EP1458072 B1 EP 1458072B1 EP 04001251 A EP04001251 A EP 04001251A EP 04001251 A EP04001251 A EP 04001251A EP 1458072 B1 EP1458072 B1 EP 1458072B1
Authority
EP
European Patent Office
Prior art keywords
short
overvoltage protection
electrodes
circuit device
circuit
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.)
Expired - Lifetime
Application number
EP04001251A
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German (de)
English (en)
Other versions
EP1458072A1 (fr
Inventor
Peter Dr-Ing. Zahlmann
Ralph Dr-Ing. Brocke
Arnd Dr-Ing. Ehrhardt
Josef Dipl-Ing.(Fh) Birkl
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.)
Dehn SE and Co KG
Original Assignee
Dehn and Soehne GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10313045A external-priority patent/DE10313045B3/de
Application filed by Dehn and Soehne GmbH and Co KG filed Critical Dehn and Soehne GmbH and Co KG
Publication of EP1458072A1 publication Critical patent/EP1458072A1/fr
Application granted granted Critical
Publication of EP1458072B1 publication Critical patent/EP1458072B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T2/00—Spark gaps comprising auxiliary triggering means
    • H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits

Definitions

  • the invention relates to a short-circuiting device for use in low and medium voltage equipment for property and personal protection, comprising a switching element, which is actuated by a trigger signal of a fault detection device, two the switching element between them receiving electrodes with means for supplying power, said to a circuit with Connections of different potential can be contacted and the switching element is in electrical connection with the electrodes, according to the preamble of patent claim 1.
  • the short-circuiting device results in very extreme requirements.
  • extremely low resistance and high current carrying capacity up to 100 kA or at impact load up to 220 kA for a period of substantially 100 ms expected.
  • a very low resistance and as low as possible inductance construction are essential for a fast commutation of the current in the short-circuiter and the rapid and safe extinction of the arc fault.
  • the generic shorting device according to DE 42 35 329 C2 is particularly suitable for extinguishing arcs in low-voltage switchgear for the distribution of electrical energy.
  • the short-circuiting device consists of at least one switching element which is actuated with a trigger signal of an error detection device, and comprises at least one short-circuiting device.
  • the short-circuiter consists of at least two electrodes receiving the switching element between them and has current-carrying parts or regions. As a result of the current flowing directly in the current-carrying parts both in the switching element and in the short-circuiting device, at least one movable or deformable current-carrying region is pressed against the electrodes, thus producing a metallic short circuit.
  • the current-carrying parts are substantially cylinder jacket or tubular and arranged one inside the other.
  • a transversely divided pre-ionizable spark gap according to the preamble of claim 1 is shown.
  • This consists of two parallel-connected units, wherein the branch parallel to the main branch still comprises a series connection with a capacitor. About the spark gap connected in parallel, a discharge of the capacitor take place, with the result that there is a preionization of the main spark gap and this shows a safe ignition behavior.
  • the object of the invention is achieved by a short-circuiting device according to the features of claim 1 and by a method for operating such a short-circuiting device as defined in claim 18, wherein the dependent claims represent at least expedient refinements and developments.
  • the switching element is designed as a triggerable overvoltage protection device, which by a Current or voltage pulse can be brought to the response and destroyed in the event of an error.
  • At least one of the over-voltage protection device receiving electrodes is under mechanical bias and is movable in the direction of the opposite electrode, the overvoltage protection device forms an electrode spacer, which allows in case of intentional destruction of the electrodes for low-resistance short-circuiting ,
  • the overvoltage protection device is within the overall arrangement adjacent a space for receiving parts thereof in the event of a short circuit, i. E. intended for targeted destruction. By this clearance blocking the electrode movement is reliably avoided each other.
  • the switching element is a series circuit of a triggerable overvoltage protection device with a device having an adjustable or defined melting integral.
  • a device having an adjustable or defined melting integral In the embodiment of the series connection, only the device with the defined melting integral is destroyed in the event of an error.
  • the defined melting integral device may be a glass tube fuse, a linear or nonlinear resistor, a varistor, a low melting point metal or metal alloy, a semiconductive or conductive ceramic, or glass or similar material.
  • the electrically relevant distance between the electrodes in the normal state defines a voltage according to the invention over the response voltage of the switching element, z. As an inserted gas arrester, is located.
  • the overvoltage protection device can therefore be a gas arrester, a spark gap, a thyristor, a triggerable vacuum switch, a thyratron, a triggerable semiconductor element or a similar assembly.
  • the electrical parameters can be varied and adapted to the particular case or to the respective system configuration.
  • At least one tension or compression spring is provided, which also forms a sufficient resistance in the event of failure destruction of the overvoltage protection device or the switching element.
  • channels or openings may be formed in or between the electrodes.
  • the electrodes have a respective half-cylinder shape lying opposite the open lateral surfaces, wherein at least one electrode is held spring-biased externally via the cylinder base surface.
  • the overvoltage protection device In the half-cylinder interior is then the overvoltage protection device, which remains between this and the cylinder inner wall of the free space for receiving parts of the surge protection device in the event of destruction.
  • the trigger connection is preferably carried out over the cylinder jacket surface and there in turn preferably over that lateral surface of the fixed electrode.
  • one of the electrodes has a cone-shaped inner space and the counterelectrode has a counter-cone or conical shape, wherein the overvoltage protection device is arranged in the bottom region of the electrode with a cone-shaped interior and, in the initial state, the distance between the cone and countercone surfaces is smaller than the distance between the electrodes in the ground area and overvoltage protection device located there is.
  • a third embodiment is based on an electrode in the form of a pot, in which case the counterelectrode has a plunger mold which dips into the pot.
  • a circumferential step is provided, which forms the short-circuit region with the stamp surface in case of failure.
  • a receiving space for the triggerable overvoltage protection device is provided below the grading of the electrode in the form of a pot a receiving space for the triggerable overvoltage protection device is provided.
  • the device of defined melting potential is in electrical contact between a receptacle in the stamp-shaped electrode on the one hand and with a surface of the overvoltage protection device on the other.
  • the preferred movable electrode in the form of a stamp is guided by an insulating disk covering the pot mold electrode and kept movable.
  • the fault current commutates immediately via the ignited overvoltage protection device from the fault source in the switchgear to the switching element of the short-circuiting device, whereby the total delay time is reduced and the duration of action of arcing faults is reduced.
  • the electrodes of the short-circuiter come into contact and an irreversible, low-resistance, metallic short circuit is generated.
  • the movement of the electrodes in the event of a short circuit to each other can be increased or accelerated by an appropriate power supply and a resulting electrodynamic force.
  • the integrated overvoltage protection device takes on itself or in cooperation with other, external overvoltage protection devices a system overvoltage protection function and is therefore multivalent.
  • Fig. 1 is based on a known error detection system 1, which is used to detect different abnormal conditions such. As fire, voltage, fault current, pressure, arcs and so on is suitable.
  • the error detection system 1 thus serves to detect an abnormal condition and signal output.
  • the error detection system 1 supplies a signal to a trigger pulse generating means 2 and further provides a signal, which passes to a reporting device 4.
  • This reporting device 4 can control existing in known systems protective devices.
  • the triggering pulse generating device 2 is connected to a short-circuiting device 3 and supplies a current or voltage pulse, which is matched to the short-circuiting device, to trip it.
  • the trigger pulse generator 2 may also provide pulses for actuating suitable protection devices in the equipment itself.
  • So z. As the external operation of the short-circuit release, in particular a low-voltage switch, with a matched to the device current pulse possible. The same applies to other, in particular with a magnetic field controllable switch, z. B. superconducting switch, vacuum switch with magnetic drive, but also triggerable vacuum switch.
  • a triggerable switching element 7, for. B. in the form of a Gasableiters, a spark gap, a thyristor and so on, which is located between two solid, electrically conductive electrodes 5 and 6.
  • the movable electrode 5 is biased by a compression spring 9 and is in contact with a live busbar.
  • the fixed electrode 6 carries ground potential.
  • the two electrodes 5 and 6 are separated from each other by an insulation gap 11. Between or below the switching element 7, which may be a gas arrester in the simplest case, there is a hollow or free space 10th
  • An ignition electrode 8 or a potential control for the gas discharge tube is isolated connected to the unit for generating a trigger pulse 2 (see Fig. 1).
  • the gas arrester as a triggerable switching element 7 or a spark gap provided there may, if necessary, limit overvoltages within the scope of the respective intrinsic loadability and thus assume a first protective function.
  • switching element 7 can be at very high isolation values z. B. an almost any operating voltage of the overvoltage protection can be realized.
  • the overvoltage protection device used eg. As a gas arrester, the vote between over-voltage protection function and the error case in which the arrester is destroyed, can be made very accurately. This allows a very flexible adaptation of the combination of surge arrester and irreversible short-circuiter for the respective voltage level or according to other specific system characteristics.
  • the response value of the gas discharge line should be higher than all voltages occurring in the system during operation.
  • the switching element When detecting an error, z. As in arcs, the function of the short-circuiter must be realized very quickly.
  • the switching element is ignited in the event of an error by an ignition pulse, supplied from the trigger pulse generating unit 2. In a current ignition, this pulse can be used directly to destroy the switching element 7 or it Here leads the subsequent current flow through the low-resistance connection of the switching element to its (desired) destruction.
  • the fault current commutates very quickly into the short-circuiter, even before the start of the movement of the contact or electrode 5 towards the electrode 6 and the mechanical destruction of the switching element 7.
  • the compression spring 9 is of course to be designed so that it can counteract the pressure that arises in the destruction of the switching element 7.
  • openings or larger cavities may be provided in the bottom region of the electrode.
  • the guide of the electrode 5 can be realized via a circumferential insulating ring 12.
  • the contacting of the switching element 7 is isolated by the bottom in the electrode 6 via a terminal. 8
  • the further embodiment of the invention shown in FIG. 4 is particularly advantageous for large insulation distances and high voltages.
  • the fuse 13 itself has a very well adjustable melt integral, via which the interaction with the surge arrester 7 is tuned.
  • the low-resistance connection between the electrodes 5 and 6 is produced.
  • the destruction of the actual switching element, i. a z. B. used surge arrester 7, are omitted, resulting in a greater latitude for its design and construction.
  • fuse with housing instead of the fuse with housing, other materials with relatively high mechanical strength, but a small, relatively small melting integral can be used, such as special low-melting metals or alloys.
  • the Topfformelektrode 6 of FIG. 4 has a gradation to 14, which forms the short-circuit region with the punch surface 15 of the opposite electrode 5 in case of failure.
  • the receiving space A also serves to accommodate parts of the destroyed in the event of an error device 13, without the movement of the punch electrode 5 is hampered towards the cup-shaped electrode 6 with the desired coming into contact.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Fuses (AREA)

Claims (20)

  1. Dispositif de court-circuit pour l'utilisation dans des installations à basse et moyenne tension pour la protection d'objets et de personnes, comportant un élément de commutation (7) qui est actionné par un signal de déclenchement d'un dispositif de détection de défaut (1), deux électrodes (5 ; 6) recevant entre elles l'élément de commutation (7) avec des moyens d'amenée de courant, celles-ci pouvant être mises en contact avec un circuit électrique avec des branchements à potentiel différent et l'élément de commutation (7) étant en connexion électrique avec les électrodes (5 ;6),
    caractérisé en ce que
    l'élément de commutation (7) est un dispositif protecteur de surtension déclenchable qui peut être amené à réagir par une impulsion de courant ou de tension et qui peut être détruit en cas de défaut,
    au moins une des électrodes (5) recevant le dispositif protecteur de surtension se trouve sous précontrainte mécanique et peut être déplacée en direction de l'électrode (6) opposée, le dispositif protecteur de surtension formant un espaceur d'électrodes qui, en cas de destruction, permet une venue en contact des électrodes pour former un court-circuit, et en ce qu'au voisinage du dispositif protecteur de surtension est prévu un espace libre (10) pour recevoir des parties dans le cas de défaut de court-circuit.
  2. Dispositif de court-circuit selon la revendication 1,
    caractérisé en ce que
    l'élément de commutation (7) est une connexion en série d'un dispositif protecteur de surtension déclenchable et d'un dispositif (13) avec joule intégral réglable ou défini.
  3. Dispositif de court-circuit selon la revendication 2,
    caractérisé en ce que
    dans la connexion en série, seul le dispositif (13) est détruit avec le joule intégral défini en cas de défaut.
  4. Dispositif de court-circuit selon les revendications 2 ou 3,
    caractérisé en ce que
    le dispositif (13) est un fusible en tube de verre, une résistance linéaire ou non-linéaire, un varistor, un métal à faible point de fusion ou un alliage métallique, une céramique semi-conductrice ou conductrice, un tel verre ou similaire.
  5. Dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance électriquement importante entre les électrodes (5 ; 6) définit une tension qui est supérieure à la tension de réponse de l'élément de commutation.
  6. Dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif protecteur de surtension (7) est un éclateur à gaz, un éclateur à étincelle, un thyristor, un interrupteur à vide déclenchable, un thyratron, un composant semi-conducteur déclenchable ou similaire.
  7. Dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    il est prévu plusieurs dispositifs protecteurs de surtension (7) connectés en série et/ou en parallèle.
  8. Dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    pour engendrer la précontrainte mécanique et le mouvement relatif des électrodes, il est prévu au moins un ressort de traction ou de compression (9).
  9. Dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les électrodes (5 ; 6) présentent chacune une forme demi-cylindrique se faisant face par les surfaces métalliques ouvertes, au moins une électrode (5) étant maintenue depuis l'extérieur sous précontrainte via la surface de base cylindrique.
  10. Dispositif de court-circuit selon la revendication 9,
    caractérisé en ce que
    le dispositif protecteur de surtension (7) se trouve dans l'espace intérieur demi-cylindrique et l'espace libre (10) demeure entre ledit dispositif et la paroi intérieure de cylindre.
  11. Dispositif de court-circuit selon l'une quelconque des revendications 9 ou 10,
    caractérisé en ce que
    la connexion de déclenchement (8) est réalisée via la surface enveloppe cylindrique, de préférence de l'électrode (6) stationnaire.
  12. Dispositif de court-circuit selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    une des électrodes (5 ;6) présente un espace intérieur en forme de cône et l'électrode antagoniste présente une forme de cône antagoniste, le dispositif protecteur de surtension étant agencé dans la région de fond de l'électrode (6) avec espace intérieur en forme de cône, et à l'état initial, la distance entre la surface en forme de cône et la surface en forme de cône antagoniste étant plus petite que la distance des électrodes dans la région de fond avec le dispositif protecteur de surtension (7) qui s'y trouve.
  13. Dispositif de court-circuit selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce que
    une des électrodes présente une forme de pot (6), et l'électrode antagoniste présente une forme de poinçon (5) plongeant dans le pot.
  14. Dispositif de court-circuit selon la revendication 13,
    caractérisé en ce que
    à l'intérieur du pot est prévu un gradin (14) périphérique qui forme la région de court-circuit avec la surface de poinçon (15) en cas de défaut.
  15. Dispositif de court-circuit selon la revendication 14,
    caractérisé en ce que
    en-dessous du gradin (14) est prévu un logement (A) pour le dispositif protecteur de surtension (7) déclenchable et pour des parties du dispositif détruit en cas de défaut.
  16. Dispositif de court-circuit selon la revendication 15,
    caractérisé en ce que
    le dispositif (13) avec potentiel de fusion défini se trouve en contact électrique entre un logement dans l'électrode (5) en forme de poinçon d'une part et une surface du dispositif protecteur de surtension (7) d'autre part.
  17. Dispositif de court-circuit selon l'une quelconque des revendications 14 à 15,
    caractérisé en ce que
    l'électrode (5) en forme de poinçon, de préférence mobile, est guidée par une plaque isolante (12) recouvrant l'électrode en forme de pot (6).
  18. Procédé pour faire fonctionner un dispositif de court-circuit selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    en cas de défaut, le courant de perte effectue immédiatement via le dispositif protecteur de surtension (7) allumé une commutation depuis la source de défaut dans l'installation de commutation vers l'élément de commutation, à la suite de quoi le temps de retard total est réduit, et la durée d'effet d'arc de lumière parasite est raccourcie, et avec la destruction du dispositif protecteur de surtension, les électrodes (5 ; 6) viennent en contact et engendrent un court-circuit métallique de basse impédance irréversible.
  19. Procédé selon la revendication 18,
    caractérisé en ce que
    le mouvement des électrodes (5 ; 6) l'une vers l'autre en cas de court-circuit est augmenté par l'effet de force électrodynamique.
  20. Procédé selon les revendications 18 ou 19,
    caractérisé en ce que
    le dispositif protecteur de surtension (7) intégré assume, par lui-même ou en coopération avec d'autres dispositifs protecteurs de surtension externes, une fonction de protection d'installations vis-à-vis des surtensions.
EP04001251A 2003-03-11 2004-01-21 Dispositif de court-circuit pour utilisation dans des arrangements de basse et moyenne tension Expired - Lifetime EP1458072B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10310556 2003-03-11
DE10310556 2003-03-11
DE10313045 2003-03-24
DE10313045A DE10313045B3 (de) 2003-03-11 2003-03-24 Kurzschließeinrichtung für den Einsatz in Nieder- und Mittelspannungsanlagen

Publications (2)

Publication Number Publication Date
EP1458072A1 EP1458072A1 (fr) 2004-09-15
EP1458072B1 true EP1458072B1 (fr) 2008-01-16

Family

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EP04001251A Expired - Lifetime EP1458072B1 (fr) 2003-03-11 2004-01-21 Dispositif de court-circuit pour utilisation dans des arrangements de basse et moyenne tension

Country Status (4)

Country Link
EP (1) EP1458072B1 (fr)
AT (1) ATE384349T1 (fr)
DE (1) DE502004005936D1 (fr)
ES (1) ES2300666T3 (fr)

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DE102011108858A1 (de) * 2011-07-28 2013-01-31 Epcos Ag Elektrischer Drei-Elektroden-Überspannungsableiter
DE102012011072B4 (de) * 2012-03-26 2016-03-03 Dehn + Söhne Gmbh + Co. Kg Defektanzeige für eine elektronische Einrichtung, insbesondere Überspannungsableiter
EP2677524B1 (fr) * 2012-06-19 2018-09-05 Raycap Intellectual Property, Ltd. Dispositifs de protection contre les surtensions comprenant une varistance et un élément fusible conducteur électrique
US8743525B2 (en) * 2012-06-19 2014-06-03 Raycap Intellectual Property, Ltd Overvoltage protection devices including wafer of varistor material
US9906017B2 (en) 2014-06-03 2018-02-27 Ripd Research And Ip Development Ltd. Modular overvoltage protection units
WO2018019384A1 (fr) * 2016-07-29 2018-02-01 Siemens Aktiengesellschaft Interrupteur servant à court-circuiter un module d'un convertisseur multi-étage et procédé permettant de court-circuiter le module
US10319545B2 (en) 2016-11-30 2019-06-11 Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o. Surge protective device modules and DIN rail device systems including same
US10707678B2 (en) 2016-12-23 2020-07-07 Ripd Research And Ip Development Ltd. Overvoltage protection device including multiple varistor wafers
US10447026B2 (en) 2016-12-23 2019-10-15 Ripd Ip Development Ltd Devices for active overvoltage protection
US10340110B2 (en) 2017-05-12 2019-07-02 Raycap IP Development Ltd Surge protective device modules including integral thermal disconnect mechanisms and methods including same
US10685767B2 (en) 2017-09-14 2020-06-16 Raycap IP Development Ltd Surge protective device modules and systems including same
US11223200B2 (en) 2018-07-26 2022-01-11 Ripd Ip Development Ltd Surge protective devices, circuits, modules and systems including same
US11862967B2 (en) 2021-09-13 2024-01-02 Raycap, S.A. Surge protective device assembly modules
US11723145B2 (en) 2021-09-20 2023-08-08 Raycap IP Development Ltd PCB-mountable surge protective device modules and SPD circuit systems and methods including same
US11990745B2 (en) 2022-01-12 2024-05-21 Raycap IP Development Ltd Methods and systems for remote monitoring of surge protective devices
EP4339989A1 (fr) * 2022-09-14 2024-03-20 RIPD IP Development Ltd Ensembles de protection électrique et dispositifs de protection contre les surtensions

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FR1105378A (fr) * 1953-07-23 1955-11-30 Bbc Brown Boveri & Cie Intervalle d'éclatement pré-ionisé notamment pour parafoudres
DE4235329C2 (de) * 1992-10-20 1995-12-21 Kloeckner Moeller Gmbh Kurzschlußeinrichtung, insbesondere zum Löschen von Störlichtbögen in Niederspannungs-Schaltanlagen zur Verteilung elektrischer Energie, Anordnung und Verwendung hierfür
DE9419141U1 (de) * 1994-11-29 1996-03-28 Klöckner-Moeller GmbH, 53115 Bonn Kurzschließer zum Löschen von Störlichtbögen zur Verwendung in Schaltanlagen
DE19746815A1 (de) * 1997-10-23 1999-04-29 Kloeckner Moeller Gmbh Kurzschließer, insbesondere für eine Störlichtbogen-Schutzvorrichtung zur Verwendung in Anlagen zur Verteilung elektrischer Energie
DE19856939A1 (de) * 1998-12-10 2000-06-15 Bettermann Obo Gmbh & Co Kg Schaltungsanordnung zum Schutz von elektrischen Installationen gegen Überspannungsereignisse

Also Published As

Publication number Publication date
ES2300666T3 (es) 2008-06-16
EP1458072A1 (fr) 2004-09-15
ATE384349T1 (de) 2008-02-15
DE502004005936D1 (de) 2008-03-06

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