WO2003107369A1 - Current switching device - Google Patents

Current switching device Download PDF

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Publication number
WO2003107369A1
WO2003107369A1 PCT/CH2003/000386 CH0300386W WO03107369A1 WO 2003107369 A1 WO2003107369 A1 WO 2003107369A1 CH 0300386 W CH0300386 W CH 0300386W WO 03107369 A1 WO03107369 A1 WO 03107369A1
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WO
WIPO (PCT)
Prior art keywords
switching
spark gap
switching device
switch
drive
Prior art date
Application number
PCT/CH2003/000386
Other languages
German (de)
French (fr)
Inventor
Lutz Niemeyer
Ekkehard Schade
Klaus-Dieter Weltmann
Original Assignee
Abb Research Ltd
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 Abb Research Ltd filed Critical Abb Research Ltd
Priority to AU2003233901A priority Critical patent/AU2003233901A1/en
Publication of WO2003107369A1 publication Critical patent/WO2003107369A1/en

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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
    • H01H33/045—Means for extinguishing or preventing arc between current-carrying parts for arcs formed during closing
    • 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
    • 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
    • H01H33/593—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 ensuring operation of the switch at a predetermined point of the ac cycle
    • 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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle

Definitions

  • the present invention relates to a current switching device according to the preamble of claim 1, which is intended for use in systems for the distribution and transmission of electrical energy.
  • fast-switching devices for switching high currents which have a triggerable discharge path which is fixed by two electrodes arranged at a fixed distance from one another.
  • the two electrodes take over the control of the nominal current and must be designed accordingly.
  • the electrodes are surrounded by a trigger electrode.
  • At least one electrode, namely the cathode consists of a readily evaporating material, preferably zinc.
  • an arc is ignited by applying a voltage to the trigger electrode between the latter and the cathode.
  • the resulting Standing metal vapor originating from the cathode triggers a discharge between the electrodes and thus a current flow through the switching device. Due to the nominal current flowing through the electrodes during operation, metal vapors 5 are generated which settle inside the switching device after the current interruption.
  • the invention has for its object to provide a current switching device of the type mentioned that .0 not only high currents over longer periods without ins
  • Weight can cause damage, but can also switch high currents precisely in time.
  • the current switching device is closed precisely in time by triggering the spark gap connected in parallel with the switching element.
  • the current flowing through the spark gap after triggering activates the drive arrangement, which then moves the switching contacts of the switching element, which is preferably a vacuum switch, from the open position to the closed position.
  • the switching element which is designed for high nominal current loads, now takes over the current.
  • the spark gap is relieved of a long-term control of the nominal current and 5 can therefore be of simpler design.
  • Fig. 1 shows a schematic representation of a first embodiment of an inventive current switching device
  • Fig. 2 in a representation corresponding to Fig. 1 shows a second embodiment of a current switching device according to the invention.
  • the first embodiment of a current switching device 1 shown schematically in FIG. 1, has a switching element 2 with a fixed switching contact 3 and a movable switching contact 4. The latter is connected to a drive arrangement 6 via a switch rod 5 indicated by dashed lines.
  • the switch contacts 3, 4 are shown in FIG. 1 in their open position, in which they are arranged at a distance from one another.
  • the switching element 2 is preferably a vacuum switch, which has the advantage that the switching path of the movable switching contact 4 is short.
  • a bistable magnetic drive is used as the drive arrangement 6, as is known, for example, from EP-A-0 883 146 or DE-C-43 04 921.
  • a spark gap 7, which is accommodated in an evacuated or gas-filled vessel 8, is connected in parallel with the switching contacts 3, 4 of the switching element 2.
  • a trigger pulse generator 9 is provided for triggering the spark gap 7 and generates the trigger pulses on the basis of control commands.
  • a measuring transformer 11 which in the present case is a current transformer, is connected in series with the spark gap 7 in the parallel current path 10 containing the spark gap 7. ) On the secondary side, the transducer 11 is connected to a first one
  • Input 12 of the drive arrangement 6 connected.
  • the latter has a second input 13 for a control signal causing the switching element 2 to open.
  • the operation of the current switching device 1 according to FIG. 1 is as follows:
  • the trigger pulse generator 9 is activated by a control command, which generates trigger pulses through which the spark gap 7 is triggered.
  • a current flows in the parallel current path 10 of the current switching device 1.
  • a signal is generated in the secondary circuit of the transducer 11 and is applied to the first input 12 of the drive arrangement 6.
  • a switch-on movement is triggered in the drive arrangement 6, as is described in more detail, for example, in the aforementioned DE-G-43 04 921.
  • the movable switching contact 4 of the switching element 2 is moved from the open position into the closed position via the switching rod 5.
  • the closed switching element 2 now carries the current from the spark gap 7.
  • a control signal is applied to the second input 13 of the drive arrangement 6 which triggers a switch-off movement.
  • the movable switch contact 4 is moved back into its open position.
  • FIG. 2 differs from the first embodiment according to FIG. 1 only in another embodiment of the drive arrangement 6.
  • FIGS. 1 and 2 the same reference numerals are used for corresponding components.
  • the drive arrangement 6 of the current switching device 1 according to FIG. 2 has an electromagnetic switch-on drive, of which only the excitation coil 14 is shown in FIG. 2.
  • This excitation coil 14 is connected in series with the spark gap 7 in the parallel current path 10 and triggers a switch-on movement of the switching rod 5 when it is excited.
  • the drive arrangement 6 also includes a second excitation coil 15, which forms part of an electromagnetic switch-off drive, which is not shown in any more detail.
  • the excitation coil 15 is connected to a control circuit 16.
  • a mechanical switch-off unit 17 shown in dashed lines in FIG. 2 can be provided.
  • the mode of operation of the current switching device 1 shown in FIG. 2 largely corresponds to the mode of operation explained using the embodiment according to FIG. 1.
  • the excitation coil 14 is excited, which has the consequence that the movable switching contact 4 of the switching element 2 is moved from the open position to the closed position. The current is now conducted through the closed switching element 2.
  • the excitation coil 15 of the switch-off drive is excited by the control circuit 16.
  • the movable switch contact 4 is moved back into its open position.
  • this serves to open the switching element 2.
  • the current is switched on by triggering the spark gap 7, which makes it possible to precisely control the time at which the current is switched on.
  • the current flowing after the triggering of the spark gap 7 through the parallel circuit 10 is used to trigger and, if necessary, also to carry out the switching on of the switching element 2, which takes over the current supply after the closing.
  • the spark gap 7 therefore has to carry a high current only for a short time.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Contacts (AREA)
  • Relay Circuits (AREA)

Abstract

The current switching device (1) comprises a switch element (2), preferably a vacuum switch, with a moveable switching contact (3, 4). The moveable switching contact (4) is connected to a drive device (6) embodies as a bi-stable magnetic drive. A triggerable spark gap (7) is mounted parallel to the switching contacts (3, 4) and is disposed in an evacuated or gas-filled vessel (8) and connected to a trigger pulse generator (9). An instrument transformer (11) is serially connected to the spark gap (7) whereupon the secondary side thereof is connected to the drive arrangement (6). The current flowing after the triggering of the spark gap (7) in the latter and the parallel current path (10) containing the instrument transformer (11) triggers a switch-on movement of the drive device (6). The moveable switching contact (4) moves into a closed position. The closed switch element (2) receives the current fed to it via the spark gap (7). The moment of closure of the switching device (1) is determined by the moment when the spark gap (7) is triggered.

Description

B E S C H R E I B U N G DESCRIPTION
STROMSCHALTEINRICHTUNGPOWER CONTROL DEVICE
Technisches GebietTechnical field
Die vorliegende Erfindung betrifft eine Stromschalt- einrichtung gemäss Oberbegriff des Anspruches 1, die für den Einsatz in Anlagen für die Verteilung und Übertragung elektrischer Energie vorgesehen ist.The present invention relates to a current switching device according to the preamble of claim 1, which is intended for use in systems for the distribution and transmission of electrical energy.
Stand der TechnikState of the art
Stromschalteinrichtungen dieser Art mit zwei relativ zueinander beweglichen Schaltkontakten, die mittels einer Antriebsanordnung zwischen einer Offenstellung und einer Schliessstellung umschaltbar sind, sind bekannt, beispielsweise aus der DE-C-43 04 921. Solche Stromschalteinrichtungen sind in der Lage, hohe Ströme zu schalten und auch über längere Zeit zu führen.Current switching devices of this type with two switching contacts which are movable relative to one another and which can be switched between an open position and a closed position by means of a drive arrangement are known, for example from DE-C-43 04 921. Such current switching devices are able to switch high currents and also to lead over a long period of time.
Weiter sind schnell einschaltende Schalteinrichtungen zum Schalten von hohen Strömen bekannt, die eine triggerbare Entladungsstrecke aufweisen, die durch zwei in einem festen Abstand voneinander angeordnete Elektroden festgelegt ist. Die beiden Elektroden übernehmen die Führung des Nennstromes und müssen entsprechend ausgebildet sein. Bei der in der GB- A-2 304 990 offenbarten Schalteinrichtung dieser Art sind die Elektroden von einer Triggerelektrode umgeben. Zumindest die eine Elektrode, nämlich die Kathode, besteht aus einem leicht verdampfenden Material, vorzugsweise Zink. Zum Einschalten dieser Schalteinrichtung wird durch Anlegen einer Spannung an die Triggerelektrode zwischen dieser und der Kathode ein Lichtbogen gezündet. Der dadurch ent- stehende, von der Kathode herrührende Metalldampf löst eine Entladung zwischen den Elektroden und damit einen Stromfluss durch die Schalteinrichtung aus. Durch den im Betrieb über die Elektroden fliessenden Nennstrom werden Metalldämpfe 5 erzeugt, die sich nach der Stromunterbrechung im Innern der Schalteinrichtung absetzen.Furthermore, fast-switching devices for switching high currents are known which have a triggerable discharge path which is fixed by two electrodes arranged at a fixed distance from one another. The two electrodes take over the control of the nominal current and must be designed accordingly. In the switching device of this type disclosed in GB-A-2 304 990, the electrodes are surrounded by a trigger electrode. At least one electrode, namely the cathode, consists of a readily evaporating material, preferably zinc. To switch on this switching device, an arc is ignited by applying a voltage to the trigger electrode between the latter and the cathode. The resulting Standing metal vapor originating from the cathode triggers a discharge between the electrodes and thus a current flow through the switching device. Due to the nominal current flowing through the electrodes during operation, metal vapors 5 are generated which settle inside the switching device after the current interruption.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zu Grunde, eine Stromschalteinrichtung der eingangs genannten Art zu schaffen, die .0 nicht nur hohe Ströme über längere Zeiträume ohne insThe invention has for its object to provide a current switching device of the type mentioned that .0 not only high currents over longer periods without ins
Gewicht fallende Beschädigungen führen kann, sondern auch hohe Ströme zeitlich präzis zu schalten vermag.Weight can cause damage, but can also switch high currents precisely in time.
Diese Aufgabe wird mit einer Stromschalteinrichtung mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a current switching device with the features of claim 1.
L5 Das zeitlich präzise Schliessen der Stromschalteinrichtung erfolgt durch Triggern der zum Schaltelement parallel geschalteten Funkenstrecke. Durch den nach dem Triggern durch die Funkenstrecke fliessenden Strom wird die Antriebsanordnung aktiviert, die dann die Schaltkontakte des Schalt- 0 elementes, das vorzugsweise ein Vakuumschalter ist, von der Offenstellung in die Schliessstellung bewegt. Das Schaltelement, das für hohe Nennstrombelastungen ausgelegt ist, übernimmt nun die Stromführung. Die Funkenstrecke wird von einer zeitlich langen Führung des Nennstromes entlastet und 5 kann deshalb konstruktiv einfacher ausgebildet sein.L5 The current switching device is closed precisely in time by triggering the spark gap connected in parallel with the switching element. The current flowing through the spark gap after triggering activates the drive arrangement, which then moves the switching contacts of the switching element, which is preferably a vacuum switch, from the open position to the closed position. The switching element, which is designed for high nominal current loads, now takes over the current. The spark gap is relieved of a long-term control of the nominal current and 5 can therefore be of simpler design.
Bevorzugte Weiterausgestaltungen der erfindungsge ässen Stromschalteinrichtung bilden Gegenstand der abhängigen Ansprüche . Kurze Beschreibung der ZeichnungenPreferred further developments of the current switching device according to the invention form the subject of the dependent claims. Brief description of the drawings
Im folgenden wird die Erfindung anhand von Figuren, welche lediglich Ausführungsbeispiele darstellen, näher erläutert. Es zeigen:The invention is explained in more detail below with reference to figures which merely represent exemplary embodiments. Show it:
Fig. 1 in schematischer Darstellung eine erste Ausführungsform einer erfindungsge ässen Stromschalteinrichtung, undFig. 1 shows a schematic representation of a first embodiment of an inventive current switching device, and
Fig. 2 in einer der Fig. 1 entsprechenden Darstellung eine zweite Ausführungsform einer erfindungsgemässen Stromschalteinrichtung.Fig. 2 in a representation corresponding to Fig. 1 shows a second embodiment of a current switching device according to the invention.
Wege zur Ausführung der ErfindungWays of Carrying Out the Invention
Die in der Fig. 1 schematisch dargestellte erste Ausführungsform einer erfindungsgemässen Stromschalteinrichtung 1 weist ein Schaltelement 2 mit einem feststehenden Schaltkontakt 3 und einem beweglichen Schaltkontakt 4 auf. Letzterer ist über eine gestrichelt angedeutete Schaltstange 5 mit einer Antriebsanordnung 6 verbunden. Die Schaltkontakte 3, 4 sind in der Fig. 1 in ihrer Offenstellung gezeigt, in der sie in einem Abstand voneinander angeordnet sind.The first embodiment of a current switching device 1 according to the invention, shown schematically in FIG. 1, has a switching element 2 with a fixed switching contact 3 and a movable switching contact 4. The latter is connected to a drive arrangement 6 via a switch rod 5 indicated by dashed lines. The switch contacts 3, 4 are shown in FIG. 1 in their open position, in which they are arranged at a distance from one another.
Das Schaltelement 2 ist vorzugsweise ein Vakuumschalter, der den Vorteil hat, dass der Schaltweg des beweglichen Schaltkontaktes 4 kurz ist. Als Antriebsanordnung 6 wird beim gezeigten Ausführungsbeispiel ein bistabiler magnetischer Antrieb verwendet, wie er beispielsweise aus der EP-A-0 883 146 oder der DE-C-43 04 921 bekannt ist. Parallel zu den Schaltkontakten 3, 4 des Schaltelementes 2 ist eine Funkenstrecke 7 geschaltet, die in einem evakuierten oder mit einem Gas gefüllten Gefäss 8 untergebracht ist. Zum Triggern der Funkenstrecke 7 ist ein Triggerimpulsgenerator 9 vorgesehen, der aufgrund von Steuerbefehlen die Triggerimpulse erzeugt.The switching element 2 is preferably a vacuum switch, which has the advantage that the switching path of the movable switching contact 4 is short. In the exemplary embodiment shown, a bistable magnetic drive is used as the drive arrangement 6, as is known, for example, from EP-A-0 883 146 or DE-C-43 04 921. A spark gap 7, which is accommodated in an evacuated or gas-filled vessel 8, is connected in parallel with the switching contacts 3, 4 of the switching element 2. A trigger pulse generator 9 is provided for triggering the spark gap 7 and generates the trigger pulses on the basis of control commands.
In den die Funkenstrecke 7 enthaltenden Parallelstrompfad 10 ist in Serie zur Funkenstrecke 7 ein Messwandler 11, der im vorliegenden Fall ein Stromwandler ist, geschaltet. ) Sekundärseitig ist der Messwandler 11 an einen erstenA measuring transformer 11, which in the present case is a current transformer, is connected in series with the spark gap 7 in the parallel current path 10 containing the spark gap 7. ) On the secondary side, the transducer 11 is connected to a first one
Eingang 12 der Antriebsanordnung 6 angeschlossen. Letztere weist einen zweiten Eingang 13 für ein, ein Oeffnen des Schaltelementes 2 bewirkendes Steuersignal auf.Input 12 of the drive arrangement 6 connected. The latter has a second input 13 for a control signal causing the switching element 2 to open.
Die Wirkungsweise der Stromschalteinrichtung 1 gemäss Fig. 1 ist wie folgt:The operation of the current switching device 1 according to FIG. 1 is as follows:
Zum Einschalten eines Stromes wird durch einen Steuerbefehl der Triggerimpulsgenerator 9 aktiviert, der Triggerimpulse erzeugt, durch die die Funkenstrecke 7 getriggert wird. Nach dem Triggern fliesst im Parallelstrompfad 10 der Strom- schalteinrichtung 1 ein Strom. Im Sekundärkreis des Messwandlers 11 wird ein Signal erzeugt, das an den ersten Eingang 12 der Antriebsanordnung 6 angelegt wird. Dadurch wird in der Antriebsanordnung 6 eine Einschaltbewegung ausgelöst, wie das beispielsweise in der bereits erwähnten DE-G-43 04 921 näher beschrieben ist. Der bewegliche Schaltkontakt 4 des Schaltelementes 2 wird über die Schaltstange 5 von der Offenstellung in die Schliessstellung bewegt. Das geschlossene Schaltelement 2 übernimmt nun die Stromführung von der Funkenstrecke 7. Zum Unterbrechen des durch das Schaltelement 2 fliessenden Stromes wird an den zweiten Eingang 13 der Antriebsanordnung 6 ein Steuersignal angelegt, das eine Ausschaltbewegung auslöst. Der bewegliche Schaltkontakt 4 wird in seine Offenstellung zurück bewegt.To switch on a current, the trigger pulse generator 9 is activated by a control command, which generates trigger pulses through which the spark gap 7 is triggered. After triggering, a current flows in the parallel current path 10 of the current switching device 1. A signal is generated in the secondary circuit of the transducer 11 and is applied to the first input 12 of the drive arrangement 6. As a result, a switch-on movement is triggered in the drive arrangement 6, as is described in more detail, for example, in the aforementioned DE-G-43 04 921. The movable switching contact 4 of the switching element 2 is moved from the open position into the closed position via the switching rod 5. The closed switching element 2 now carries the current from the spark gap 7. To interrupt the current flowing through the switching element 2, a control signal is applied to the second input 13 of the drive arrangement 6 which triggers a switch-off movement. The movable switch contact 4 is moved back into its open position.
Die in der Fig. 2 gezeigte zweite Ausführungsform einer erfindungsgemässen Stromschalteinrichtung 1 unterscheidet sich vom ersten Ausführungsbeispiel gemäss Fig. 1 nur durch eine andere Ausgestaltung der Antriebsanordnung 6. In den Fig. 1 und 2 werden für sich entsprechende Bauteile dieselben Bezugszeichen verwendet.The second embodiment of a current switching device 1 according to the invention shown in FIG. 2 differs from the first embodiment according to FIG. 1 only in another embodiment of the drive arrangement 6. In FIGS. 1 and 2, the same reference numerals are used for corresponding components.
Die Antriebsanordnung 6 der Stromschalteinrichtung 1 gemäss Fig. 2 weist einen elektromagnetischen Einschaltantrieb auf, von dem in der Fig. 2 nur die Erregerspule 14 dargestellt ist. Diese Erregerspule 14 ist in Serie zur Funkenstrecke 7 in den Parallelstrompfad 10 geschaltet und löst bei ihrer Erregung eine Einschaltbewegung der Schaltstange 5 aus. Zur Antriebsanordnung 6 gehört ferner eine zweite Erregerspule 15, die Teil eines im übrigen nicht näher dargestellten elektromagnetischen Ausschaltantriebes bildet. Die Erregerspule 15 ist an eine Steuerschaltung 16 angeschlossen. Anstelle des elektromagnetischen Ausschaltantriebes oder zusätzlich zu diesem kann eine in der Fig. 2 gestrichelt dargestellte mechanische Ausschalteinheit 17 vorgesehen sein.The drive arrangement 6 of the current switching device 1 according to FIG. 2 has an electromagnetic switch-on drive, of which only the excitation coil 14 is shown in FIG. 2. This excitation coil 14 is connected in series with the spark gap 7 in the parallel current path 10 and triggers a switch-on movement of the switching rod 5 when it is excited. The drive arrangement 6 also includes a second excitation coil 15, which forms part of an electromagnetic switch-off drive, which is not shown in any more detail. The excitation coil 15 is connected to a control circuit 16. Instead of the electromagnetic switch-off drive or in addition to this, a mechanical switch-off unit 17 shown in dashed lines in FIG. 2 can be provided.
Die Wirkungsweise der in der Fig. 2 gezeigten Stromschalteinrichtung 1 entspricht weitgehend der anhand der Ausführungsform gemäss Fig. 1 erläuterten Wirkungsweise.The mode of operation of the current switching device 1 shown in FIG. 2 largely corresponds to the mode of operation explained using the embodiment according to FIG. 1.
Durch den nach dem Triggern der Funkenstrecke 7 im Parallelstromkreis 10 der Stromschalteinrichtung 1 fliessenden Strom wird die Erregerspule 14 erregt, was zur Folge hat, dass der bewegliche Schaltkontakt 4 des Schaltelementes 2 von der Offenstellung in die Schliessstellung bewegt wird. Der Strom wird nun über das geschlossene Schaltelement 2 geführt.By the triggering of the spark gap 7 in the parallel circuit 10 of the current switching device 1 flowing current, the excitation coil 14 is excited, which has the consequence that the movable switching contact 4 of the switching element 2 is moved from the open position to the closed position. The current is now conducted through the closed switching element 2.
Zum Oeffnen des Schaltelementes 2 wird die Erregerspule 15 des Ausschaltantriebes von der Steuerschaltung 16 her erregt. Der bewegliche Schaltkontakt 4 wird in seine Offenstellung zurück bewegt. Bei der alternativen Ausführung mit einer mechanischen Ausschalteinheit 17 dient diese zum Oeffnen des Schaltelementes 2.To open the switching element 2, the excitation coil 15 of the switch-off drive is excited by the control circuit 16. The movable switch contact 4 is moved back into its open position. In the alternative embodiment with a mechanical switch-off unit 17, this serves to open the switching element 2.
Bei beiden beschriebenen Ausführungsformen erfolgt das Einschalten des Stromes durch Triggern der Funkenstrecke 7, was es erlaubt, den Zeitpunkt der Stromeinschaltung präzis zu steuern. Der nach dem Triggern der Funkenstrecke 7 durch den Parallelstromkreis 10 fliessende Strom wird zur Auslösung und gegebenenfalls auch zur Durchführung des Einschaltvorganges des Schaltelementes 2 herangezogen, welches nach dem Schliessen die Stromführung übernimmt. Die Funken- strecke 7 hat somit nur über eine kurze Zeit einen hohen Strom zu führen.In both of the described embodiments, the current is switched on by triggering the spark gap 7, which makes it possible to precisely control the time at which the current is switched on. The current flowing after the triggering of the spark gap 7 through the parallel circuit 10 is used to trigger and, if necessary, also to carry out the switching on of the switching element 2, which takes over the current supply after the closing. The spark gap 7 therefore has to carry a high current only for a short time.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Stromschalteinrichtung 2 Schaltelement1 current switching device 2 switching element
3 feststehender Schaltkontakt3 fixed switch contact
4 beweglicher Schaltkontakt4 movable switch contact
5 Schaltstange5 shift rod
6 Antriebsanordnung Funkenstrecke Gefäss Triggerimpulsgenerator Parallelstrompfad Messwandler erster Eingang zweiter Eingang Erregerspule des Einschaltantriebes Erregerspule des Ausschaltantriebes SteuerSchaltung mechanische Ausschalteinheit 6 drive arrangement Spark gap vessel trigger pulse generator parallel current path transducer first input second input excitation coil of the switch-on drive excitation coil of the switch-off drive control circuit mechanical switch-off unit

Claims

PAT E N TAN S P RÜ C H E PAT EN TAN SP RÜ CHE
1. Stromschalteinrichtung mit einem Schaltelement (2), das zwei in einer Offenstellung in einem Abstand voneinander angeordnete Schaltkontakte (3, 4) aufweist, und mit einer Antriebsanordnung (6) zum Bewegen der Schaltkontakte (3, 4) relativ zueinander von der Offenstellung in eine Schliessstellung, gekennzeichnet durch eine zu den Schalt ontakten (3, 4) des Schaltelementes (2) parallel geschaltete, mittels eines Triggersignales triggerbare Funkenstrecke (7), die mit der Antriebsanordnung (6) derart wirkverbunden ist, dass die Antriebsanordnung (6) durch den nach dem Triggern der Funkenstrecke (7) durch diese fliessenden Strom aktiviert wird, um die Schaltkontakte (3, 4) in die Schliessstellung zu bewegen.1. Current switching device with a switching element (2), which has two switching contacts (3, 4) arranged at a distance from each other in an open position, and with a drive arrangement (6) for moving the switching contacts (3, 4) relative to one another from the open position in A closed position, characterized by a spark gap (7) which is connected in parallel with the switching contacts (3, 4) of the switching element (2) and can be triggered by a trigger signal and is operatively connected to the drive arrangement (6) in such a way that the drive arrangement (6) which is activated by the flowing current after triggering the spark gap (7) in order to move the switch contacts (3, 4) into the closed position.
2. Schalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Funkenstrecke (7) in einem evakuierten oder mit einem Gas gefüllten Gefäss (8) untergebracht ist.2. Switching device according to claim 1, characterized in that the spark gap (7) is housed in an evacuated or gas-filled vessel (8).
3. Schalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Schaltelement (2) ein Vakuumschalter ist.3. Switching device according to claim 1 or 2, characterized in that the switching element (2) is a vacuum switch.
4. Schalteinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Schaltelement (2) einen feststehenden Schaltkontakt (3) und einen beweglichen Schaltkontakt (4) aufweist, der mit der Antriebsanordnung (6) antriebsverbunden ist. 4. Switching device according to one of claims 1 to 3, characterized in that the switching element (2) has a fixed switching contact (3) and a movable switching contact (4) which is drive-connected to the drive arrangement (6).
5. Schalteinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Antriebsanordnung (6) als bistabiler magnetischer Antrieb ausgebildet ist.5. Switching device according to one of claims 1 to 4, characterized in that the drive arrangement (6) is designed as a bistable magnetic drive.
6. Schalteinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass im parallel zu den Schaltkontakten (3, 4) liegenden, die Funkenstrecke (7) enthaltenden Parallelstromkreis (10) ein in Serie zur Funkenstrecke (7) geschalteter Messwandler (11) angeordnet ist, der sekundärseitig an die Antriebsanordnung (6) angeschlossen ist..6. Switching device according to claim 5, characterized in that in parallel to the switch contacts (3, 4), the spark gap (7) containing the parallel circuit (10) is arranged in series with the spark gap (7) connected measuring transducer (11) is connected on the secondary side to the drive arrangement (6).
7. Schalteinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Antriebsanordnung (6) einen elektromagnetischen Einschaltantrieb zum Schliessen der Schaltkontakte (3, 4) aufweist.7. Switching device according to one of claims 1 to 4, characterized in that the drive arrangement (6) has an electromagnetic switch-on drive for closing the switch contacts (3, 4).
8. Schalteinrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der elektromagnetische Einschaltantrieb eine Erregerspule (14) aufweist, die in Serie zur Funkenstrecke (7) in den parallel zu den Schaltkontakten (3, 4) liegenden, die Funkenstrecke (7) enthaltenden Parallelstromkreis (10) geschaltet ist.8. Switching device according to claim 7, characterized in that the electromagnetic switch-on drive has an excitation coil (14) in series with the spark gap (7) in the parallel to the switch contacts (3, 4), the spark gap (7) containing parallel circuit ( 10) is switched.
9. Schalteinrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Antriebsanordnung (6) zum Oeffnen der Schaltkontakte (3, 4) einen elektromagnetischen Ausschaltantrieb mit einer an eine Steuervorrichtung (16) angeschlossenen Erregerspule (15) aufweist.9. Switching device according to claim 7 or 8, characterized in that the drive arrangement (6) for opening the switch contacts (3, 4) has an electromagnetic switch-off drive with an excitation coil (15) connected to a control device (16).
10. Schalteinrichtung nach einem der Anspruch 7 bis 9, gekennzeichnet durch eine mechanische Ausschalteinheit10. Switching device according to one of claims 7 to 9, characterized by a mechanical switch-off unit
(17) zum Oeffnen der Schaltkontakte (3, 4). (17) for opening the switch contacts (3, 4).
PCT/CH2003/000386 2002-06-17 2003-06-13 Current switching device WO2003107369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003233901A AU2003233901A1 (en) 2002-06-17 2003-06-13 Current switching device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02405495A EP1376633A1 (en) 2002-06-17 2002-06-17 Switching apparatus
EP02405495.9 2002-06-17

Publications (1)

Publication Number Publication Date
WO2003107369A1 true WO2003107369A1 (en) 2003-12-24

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AU (1) AU2003233901A1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2720240A1 (en) 2012-10-11 2014-04-16 ABB Technology AG A pole part of a medium voltage circuit breaker arrangement comprising a triggered gap unit
US8861144B2 (en) 2011-11-15 2014-10-14 Eaton Corporation Triggered arc flash arrester and switchgear system including the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9251980B2 (en) * 2011-01-14 2016-02-02 General Electric Company Apparatus for interrupting current

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585449A (en) * 1969-12-11 1971-06-15 Allis Chalmers Mfg Co Circuit interrupter with triggered vacuum gap
US3842225A (en) * 1973-01-19 1974-10-15 Westinghouse Electric Corp High voltage circuit breaker utilizing insertion of a fixed resistance during opening and closing
US3891813A (en) * 1973-05-04 1975-06-24 Westinghouse Electric Corp EHV circuit breaker utilizing gallium cathode ignitrons for synchronous closing
EP0546678A1 (en) * 1991-12-13 1993-06-16 Gec Alsthom Limited Synthetic test circuits for short-circuit testing of high-voltage alternating current circuit-breakers, and triggered spark gaps for use in such circuits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585449A (en) * 1969-12-11 1971-06-15 Allis Chalmers Mfg Co Circuit interrupter with triggered vacuum gap
US3842225A (en) * 1973-01-19 1974-10-15 Westinghouse Electric Corp High voltage circuit breaker utilizing insertion of a fixed resistance during opening and closing
US3891813A (en) * 1973-05-04 1975-06-24 Westinghouse Electric Corp EHV circuit breaker utilizing gallium cathode ignitrons for synchronous closing
EP0546678A1 (en) * 1991-12-13 1993-06-16 Gec Alsthom Limited Synthetic test circuits for short-circuit testing of high-voltage alternating current circuit-breakers, and triggered spark gaps for use in such circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8861144B2 (en) 2011-11-15 2014-10-14 Eaton Corporation Triggered arc flash arrester and switchgear system including the same
EP2720240A1 (en) 2012-10-11 2014-04-16 ABB Technology AG A pole part of a medium voltage circuit breaker arrangement comprising a triggered gap unit

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AU2003233901A1 (en) 2003-12-31
EP1376633A1 (en) 2004-01-02

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