EP0729209B1 - Device for indicating a defective state of an electric apparatus, especially a surge arrester - Google Patents

Device for indicating a defective state of an electric apparatus, especially a surge arrester Download PDF

Info

Publication number
EP0729209B1
EP0729209B1 EP96810083A EP96810083A EP0729209B1 EP 0729209 B1 EP0729209 B1 EP 0729209B1 EP 96810083 A EP96810083 A EP 96810083A EP 96810083 A EP96810083 A EP 96810083A EP 0729209 B1 EP0729209 B1 EP 0729209B1
Authority
EP
European Patent Office
Prior art keywords
shell
indicating
housing
indicating device
insulating material
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
EP96810083A
Other languages
German (de)
French (fr)
Other versions
EP0729209A1 (en
Inventor
Walter Schmidt
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.)
ABB AG Germany
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to SI9630036T priority Critical patent/SI0729209T1/en
Publication of EP0729209A1 publication Critical patent/EP0729209A1/en
Application granted granted Critical
Publication of EP0729209B1 publication Critical patent/EP0729209B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01T1/00—Details of spark gaps
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof

Definitions

  • the invention is based on a device for displaying a faulty condition of an electrical apparatus, in particular one Surge arrester, with a sensor for detecting a by the Apparatus flowing fault current, the sensor and an explosive charge receiving, gas-tight insulating material housing and a display element. If a fault current occurs, the sensor will destroy it of the housing and the visualization of the display element. A Observer can see the faulty condition without the use of tools recognize the device and have it replaced in good time.
  • the invention takes on a prior art display device Reference as specified in EP 0 564 334 A1.
  • One in this state of the Technique described display device is used to monitor a a high or medium voltage network surge arrester to a faulty operating state.
  • This device has one Isolierstoffgeophuse with an easily breakable window.
  • the insulating housing is a power connection for the surge arrester guided.
  • the part of the power connector inside the housing is surrounded by a magnetic core, which is the secondary winding of a carries the power connection as a primary winding current transformer.
  • the secondary winding is connected to an ohmic resistor, which in an explosive charge arranged inside the housing is embedded. If a fault current occurs, the current transformer heats up ohmic resistance continuously supplied with current very strong.
  • the window of the insulating material housing is broken open and a colored ribbon serving as a display element from the housing pushed out. After responding and signaling the faulty The surge arrester and the display device become state removed and replaced.
  • An electrical protection device described in FR-A-1 122 257 for Grounding an electrical line contains an on line potential located, gas-tight metal housing 1, a truncated cone trained, grounded metal pot 16 and one inside the housing arranged explosive charge 30.
  • the metal pot 16 is counter to the force an elastic membrane 18 in the metal housing 1 of this electrically kept isolated.
  • a faulty condition occurs on the electrical line an overvoltage acts on the explosive charge. Above one Limit value of the overvoltage explodes the explosive charge and drives the metal pot 16 against the force of the membrane 18 down, one galvanic connection between the metal housing 1 and the metal pot 16 manufactured and thus the line is grounded.
  • the invention is the Task based on a display device of the type mentioned indicate which features a simple structure and which ones ready for operation again after the response can be made.
  • the display device is characterized in that besides a reusable metal case, it is only a commercial one Switching element available and sold in large quantities contains, the remains of which after the display device responds easily removed from the metal housing and with a new switching element can be replaced.
  • one in the switching element provided ohmic resistance for example a fuse or a PTC resistor
  • ohmic resistance for example a fuse or a PTC resistor
  • Current surges of, for example, 100kA during 4 / 10 ⁇ s
  • Spark gap becomes an arc when the display device responds ignited, which with great certainty the explosion of one in the switching element initiates the intended explosive charge.
  • resulting splinters are absorbed by metal housings, Compressed gas can flow from metal housing in directions be distracted in which it will cause no consequential damage can. That attached to the metal housing and when responding Display element made visible can be viewed practically from all sides be observed well.
  • FIG. 1 denotes one as a surge arrester executed electrical apparatus with an as Power connection acting potential-carrying part 2, which in electrically conductive manner with a device 3 for display a faulty state of the surge arrester 1 connected is.
  • the display device has a two-part metal housing 4 made of a material that conducts electricity well, such as aluminum or an aluminum alloy on which a switching element 5 of the display device 3 is attached.
  • the switching element 5 contains a cylinder-symmetrical, gas-tight formed insulating material housing 6 made of a brittle material, such as a highly filled polymer based on an epoxy, and two cylindrically symmetrical, led into the insulating material housing and in each case at one of the ends of the insulating material housing 6 held electrodes 7, 8.
  • the two electrodes 7, 8 are standing one above the other on the axis of the insulating material housing 6 arranged and form at mutually facing free ends, of which the electrode 7 is designed as a tip Isolierstoffgeophuse 6 spark gap 9.
  • the each other facing end portions of the electrodes 7, 8 are with the Power connections of a parallel to the spark gap 9 and preferably as a fuse or PTC thermistor trained resistor 10 connected.
  • the resistor 10 is dimensioned such that he still one of the surge arrester 1 held high current surge value, for example of 100 kA 4/10 ⁇ s, can lead, and that when loaded above a predetermined Period, for example 0.1 ms, with one above one predetermined limit value, for example 20 A, its electrical conductivity, such as by melting or through a PTC transition, suddenly reduced.
  • a predetermined Period for example 0.1 ms
  • one above one predetermined limit value for example 20 A
  • its electrical conductivity such as by melting or through a PTC transition
  • the metal housing 4 is of two different diameters having shells 12, 13 formed, each with their bottoms are held at opposite ends of the switching element 5.
  • the shell 12 having the larger diameter takes the the smaller diameter shell 13.
  • the shell 12 has an opening in its bottom through which a galvanic part 2 of the surge arrester connected and an external thread connection of the Electrode 7 is guided.
  • the shell 12 is not by means of a designated nut firmly with the upper end of the switching element 5 connected.
  • the shell 12 carries at least one ins Contact element 14 directed inside the shell, which is ring-shaped is formed and has an inner cone.
  • This contact element 14 is provided with an internal thread, which with a External thread of the shell 12 cooperates.
  • the Shell 12 blow-out openings 15 for compressed gas. These blowouts can be restrained with a solid part inside the case Provide filters and be designed so that escaping compressed gas is guided in a predetermined direction.
  • the shell 13 also has an opening in its bottom, through which an external thread has an earth potential laid connection of the electrode 8 is guided.
  • the shell 13 is by means of an unspecified nut firmly with the lower end of the switching element 5 connected.
  • the shell 13 carries on her from the shell 12 covered outside, for example as Color coating formed display element 16.
  • the shell 13 is flared like a cone and is in the area of the shell edge on the outside as an electrical contact element 17 formed which on the inner cone of the annular contact element 14 is adjusted.
  • the inside of the metal case 4 is by one from the bottom of the shell 13 to the edge of the shell 12 guided cover 18 completed.
  • the operation of the display device 3 is now as follows:
  • the surge arrester leads under normal operating conditions 1 just a small leakage current, which is typically is in the mA range. This leakage current flows from the potential-carrying Part 2 on the electrode 7, the resistor 10, the Electrode 8 and one with this electrode 8 by means of a Screw connection galvanically connected, not shown flexible conductor section down to earth.
  • surge arrester 1 for example up to 100 kA 4 / 10 ⁇ s, which as a result of excess the arrester flow, discharged to earth without that the display device 3 responds.
  • a defect flows in Residual current in the A or even kA range due to the current sensor acting ohmic resistance 10.
  • the resistance 10 becomes strong heats up and goes within a few ms, for example by melting or a PTC transition, into a high-resistance state.
  • Residual current now commutates into an arc Spark gap 9 containing current path.
  • the in the field of Spark gap 9 arranged explosive charge 11 is charged by the ignited arcing.
  • the resultant Compressed gas suddenly blows up the brittle insulating material housing 6 and then drives the electrode 8 and the one rigidly connected to it Shell 13 down to the state shown in Fig.2 Display device 3 is reached.
  • the compressed gas is through the Blow-out openings from the inside of the shells 12 and 13 enclosed metal housing 4 ejected.
  • resulting splinters are from Metal housing 4 retained in the interior of the housing.
  • the defective surge arrester 1 and the display device 3 can now be removed and replaced with new devices.
  • the display device 3 can by installing a new switching element 5 operational again in a particularly economical manner be made. After unscrewing the contact element 14 and loosening the two nuts not shown in the figures only the two electrodes 7 and 8 have to be removed then just insert and close the new switching element 5 screw together.

Description

TECHNISCHES GEBIETTECHNICAL AREA

Bei der Erfindung wird ausgegangen von einer Vorrichtung zur Anzeige eines fehlerhaften Zustands eines elektrischen Apparates, insbesondere eines Überspannungsableiters, mit einem Sensor zur Erfassung eines durch den Apparat fliessenden Fehlerstroms, einem den Sensor und eine Sprengstoffladung aufnehmenden, gasdichten Isolierstoffgehäuse und einem Anzeigeelement. Beim Auftreten von Fehlerstrom bewirkt der Sensor eine Zerstörung des Gehäuses und die Sichtbarmachung des Anzeigeelementes. Ein Beobachter kann ohne den Einsatz von Hilfsmitteln den fehlerhaften Zustand des Apparates erkennen und rechtzeitig dessen Auswechslung veranlassen.The invention is based on a device for displaying a faulty condition of an electrical apparatus, in particular one Surge arrester, with a sensor for detecting a by the Apparatus flowing fault current, the sensor and an explosive charge receiving, gas-tight insulating material housing and a display element. If a fault current occurs, the sensor will destroy it of the housing and the visualization of the display element. A Observer can see the faulty condition without the use of tools recognize the device and have it replaced in good time.

STAND DER TECHNIKSTATE OF THE ART

Die Erfindung nimmt auf einen Stand der Technik von Anzeigevorrichtungen Bezug, wie er in EP 0 564 334 A1 angegeben ist. Eine in diesem Stand der Technik beschriebene Anzeigevorrichtung dient der Überwachung eines in einem Hoch- oder Mittelspannungsnetz eingesetzten Überspannungsableiters auf einen fehlerhaften Betriebszustand. Diese Vorrichtung weist ein Isolierstoffgehäuse mit einem leicht zerbrechbaren Fenster auf. Durch das Isolierstoffgehäuse hindurch ist ein Stromanschluss des Überspannungsableiters geführt. Der im Gehäuseinneren befindliche Teil des Stromanschlusses ist von einem Magnetkern umgeben, welcher die Sekundärwicklung eines den Stromanschluss als Primärwicklung aufweisenden Stromwandlers trägt. Die Sekundärwicklung ist mit einem ohmschen Widerstand verbunden, der in eine im Gehäuseinneren angeordnete Sprengstoffladung eingebettet ist. Beim Auftreten eines Fehlerstroms erwärmt sich der vom Stromwandler kontinuierlich mit Strom gespeiste ohmsche Widerstand sehr stark. Der Widerstand zündet die Sprengstoffladung oberhalb einer kritischen Grenztemperatur. Das Fenster des Isolierstoffgehäuses wird hierbei aufgebrochen und ein als Anzeigelement dienendes farbiges Band aus dem Gehäuse ausgestossen. Nach dem Ansprechen und Signalisieren des fehlerhaften Zustands werden der Überspannungsableiter und die Anzeigevorrichtung ausgebaut und ersetzt.The invention takes on a prior art display device Reference as specified in EP 0 564 334 A1. One in this state of the Technique described display device is used to monitor a a high or medium voltage network surge arrester to a faulty operating state. This device has one Isolierstoffgehäuse with an easily breakable window. By the The insulating housing is a power connection for the surge arrester guided. The part of the power connector inside the housing is surrounded by a magnetic core, which is the secondary winding of a carries the power connection as a primary winding current transformer. The secondary winding is connected to an ohmic resistor, which in an explosive charge arranged inside the housing is embedded. If a fault current occurs, the current transformer heats up ohmic resistance continuously supplied with current very strong. Of the Resistance ignites the explosive charge above a critical limit temperature. The window of the insulating material housing is broken open and a colored ribbon serving as a display element from the housing pushed out. After responding and signaling the faulty The surge arrester and the display device become state removed and replaced.

Eine in FR-A-1 122 257 beschriebene elektrische Schutzvorrichtung zur Erdung einer elektrischen Leitung enthält ein auf Leitungspotential befindliches, gasdichtes Metallgehäuse 1, einen kegelstumpfförmig ausgebildeten, geerdeten Metalltopf 16 und eine im Gehäuseinneren angeordnete Sprengstoffladung 30. Der Metalltopf 16 ist entgegen der Kraft einer elastischen Membram 18 im Metallgehäuse 1 von diesem elektrisch isoliert gehalten. Tritt an der elektrischen Leitung ein fehlerhafter Zustand auf, so wirkt auf die Sprengstoffladung eine Überspannung. Oberhalb eines Grenzwertes der Überspannung explodiert die Sprengstoffladung und treibt den Metalltopf 16 entgegen der Kraft der Membran 18 nach unten, wobei eine galvanische Verbindung zwischen dem Metallgehäuse 1 und dem Metalltopf 16 hergestellt und damit die Leitung geerdet wird.An electrical protection device described in FR-A-1 122 257 for Grounding an electrical line contains an on line potential located, gas-tight metal housing 1, a truncated cone trained, grounded metal pot 16 and one inside the housing arranged explosive charge 30. The metal pot 16 is counter to the force an elastic membrane 18 in the metal housing 1 of this electrically kept isolated. A faulty condition occurs on the electrical line an overvoltage acts on the explosive charge. Above one Limit value of the overvoltage explodes the explosive charge and drives the metal pot 16 against the force of the membrane 18 down, one galvanic connection between the metal housing 1 and the metal pot 16 manufactured and thus the line is grounded.

KURZE DARSTELLUNG DER ERFINDUNGSUMMARY OF THE INVENTION

Der Erfindung, wie sie in den Patentansprüchen angegeben ist, liegt die Aufgabe zugrunde, eine Anzeigevorrichtung der eingangs genannten Art anzugeben, welche sich durch einfachen Aufbau auszeichnet und welche nach dem Ansprechen in wirtschaftlicher Weise wieder betriebsbereit gemacht werden kann.The invention, as specified in the claims, is the Task based on a display device of the type mentioned indicate which features a simple structure and which ones ready for operation again after the response can be made.

Die Anzeigevorrichtung nach der Erfindung zeichnet sich dadurch aus, dass sie neben einem mehrfach verwendbaren Metallgehäuse lediglich ein kommerziell erhältliches und in grossen Stückzahlen vertriebenes Schaltelement enthält, dessen Reste nach dem Ansprechen der Anzeigevorrichtung leicht aus dem Metallgehäuse ausgebaut und durch ein neues Schaltelement ersetzt werden können. Durch geeignete Bemessung eines im Schaltelement vorgesehenen ohmschen Widerstands, beispielsweise einer Schmelzsicherung oder eines PTC-Widerstands, können in sehr einfacher Weise die vom zu schützenden Apparat aufzunehmenden Betriebszustände, wie etwa Stromstösse von beispielsweise 100kA während 4/10µs, auf die Anzeigevorrichtung einwirken, ohne deren Ansprechen zu veranlassen. Durch Verwendung einer parallel zum ohmschen Widerstand angeordneten Funkenstrecke wird beim Ansprechen der Anzeigevorrichtung ein Lichtbogen gezündet, welcher mit grosser Sicherheit die Explosion einer im Schaltelement vorgesehenen Sprengstoffladung einleitet. Hierbei entstehende Splitter werden von Metallgehäuse aufgenommen, entstehendes Druckgas kann von Metallgehäuse in Richtungen abgelenkt werden, in denen es keine Folgeschäden hervorrufen kann. Das auf dem Metallgehäuse angebrachte und beim Ansprechen sichtbar gemachte Anzeigeelement kann praktisch von allen Seiten gut beobachtet werden.The display device according to the invention is characterized in that besides a reusable metal case, it is only a commercial one Switching element available and sold in large quantities contains, the remains of which after the display device responds easily removed from the metal housing and with a new switching element can be replaced. By suitably dimensioning one in the switching element provided ohmic resistance, for example a fuse or a PTC resistor, can easily operating states to be recorded from the apparatus to be protected, such as Current surges of, for example, 100kA during 4 / 10µs, on the display device act without causing them to respond. By Using a parallel to the ohmic resistance Spark gap becomes an arc when the display device responds ignited, which with great certainty the explosion of one in the switching element initiates the intended explosive charge. Here resulting splinters are absorbed by metal housings, Compressed gas can flow from metal housing in directions be distracted in which it will cause no consequential damage can. That attached to the metal housing and when responding Display element made visible can be viewed practically from all sides be observed well.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Bevorzugte Ausführungsbeispiele der Erfindung und die damit erzielbaren weiteren Vorteile werden nachfolgend anhand von Zeichnungen näher erläutert. Hierbei zeigt:

Fig.1
eine Aufsicht auf einen axial geführten Schnitt durch eine im wesentlichen zylindersymmetrisch ausgebildete und in einen Stromanschluss eines Überspannungsableiters eingebaute Anzeigevorrichtung nach der Erfindung vorm Ansprechen infolge eines Fehlerstroms, und
Fig.2
die Anzeigevorrichtung gemäss Fig.1 nach dem Ansprechen.
Preferred exemplary embodiments of the invention and the further advantages achievable therewith are explained in more detail below with reference to drawings. Here shows:
Fig. 1
a plan view of an axially guided section through a substantially cylindrical symmetrical and built into a power connection of a surge arrester according to the invention before response due to a fault current, and
Fig. 2
the display device according to Figure 1 after the response.

WEG ZUR AUSFÜHRUNG DER ERFINDUNGWAY OF CARRYING OUT THE INVENTION

In den Figuren 1 und 2 bezeichnet 1 einen als Überspannungsableiter ausgeführten elektrischen Apparat mit einem als Stromanschluss wirkenden potentialführenden Teil 2, welches in elektrisch leitender Weise mit einer Vorrichtung 3 zur Anzeige eines fehlerhaften Zustands des Überspannungsableiters 1 verbunden ist. Die Anzeigevorrichtung weist ein zweiteiliges Metallgehäuse 4 aus einem elektrischen Strom gut leitenden Material, wie etwa Aluminium oder einer Aluminiumlegierung auf, welches an einem Schaltelement 5 der Anzeigevorrichtung 3 befestigt ist. Das Schaltelement 5 enthält ein zylindersymmetrisches, gasdicht ausgebildetes Isolierstoffgehäuse 6 aus einem spröden Material, wie etwa einem hochgefüllten Polymer auf der Basis eines Epoxids, und zwei zylindersymmetrische, ins Isolierstoffgehäuse geführte und jeweils an einem der Enden des Isolierstoffgehäuses 6 gehaltene Elektroden 7, 8. Die beiden Elektroden 7, 8 sind übereinanderstehend auf der Achse des Isolierstoffgehäuses 6 angeordnet und bilden an einander zugewandten freien Enden, von denen das der Elektrode 7 als Spitze ausgebildet ist, eine im Isolierstoffgehäuse 6 befindliche Funkenstrecke 9. Die einander zugewandten Endabschnitte der Elektroden 7, 8 sind mit den Stromanschlüssen eines parallel zur Funkenstrecke 9 geschalteten und vorzugsweise als Schmelzsicherung oder Kaltleiter ausgebildeten Widerstands 10 verbunden. Der Widerstand 10 ist derart bemessen, dass er einen vom Überspannungsableiter 1 noch gehaltenen Hochstromstosswert, beispielsweise von 100 kA 4/10 µs, führen kann, und dass sich bei Belastung über einen vorgegebenen Zeitraum, von beispielsweise 0,1 ms, mit einem oberhalb eines vorgegebenen Grenzwertes liegenden Strom, von beispielsweise 20 A, seine elektrische Leitfähigkeit, etwa durch Schmelzen oder durch einen PTC-Übergang, schlagartig verringert. Im Inneren des Isolierstoffgehäuses 6 unweit der Funkenstrecke 9 ist eine Sprengstoffladung 11 angebracht, deren Menge so bemessen ist, dass bei Zündung der Ladung das Isolierstoffgehäuse 6 in mindestens zwei voneinander weggeführte und jeweils eine der beiden Elektroden 7, 8 haltende Teile aufsprengbar ist.In Figures 1 and 2, 1 denotes one as a surge arrester executed electrical apparatus with an as Power connection acting potential-carrying part 2, which in electrically conductive manner with a device 3 for display a faulty state of the surge arrester 1 connected is. The display device has a two-part metal housing 4 made of a material that conducts electricity well, such as aluminum or an aluminum alloy on which a switching element 5 of the display device 3 is attached. The switching element 5 contains a cylinder-symmetrical, gas-tight formed insulating material housing 6 made of a brittle material, such as a highly filled polymer based on an epoxy, and two cylindrically symmetrical, led into the insulating material housing and in each case at one of the ends of the insulating material housing 6 held electrodes 7, 8. The two electrodes 7, 8 are standing one above the other on the axis of the insulating material housing 6 arranged and form at mutually facing free ends, of which the electrode 7 is designed as a tip Isolierstoffgehäuse 6 spark gap 9. The each other facing end portions of the electrodes 7, 8 are with the Power connections of a parallel to the spark gap 9 and preferably as a fuse or PTC thermistor trained resistor 10 connected. The resistor 10 is dimensioned such that he still one of the surge arrester 1 held high current surge value, for example of 100 kA 4/10 µs, can lead, and that when loaded above a predetermined Period, for example 0.1 ms, with one above one predetermined limit value, for example 20 A, its electrical conductivity, such as by melting or through a PTC transition, suddenly reduced. Inside the Isolierstoffgehäuses 6 not far from the spark gap 9 is one Explosive charge 11 attached, the amount of which is dimensioned that when the charge is ignited, the insulating housing 6 in at least two away from each other and one of each parts holding two electrodes 7, 8 can be detonated.

Das Metallgehäuse 4 ist von zwei unterschiedliche Durchmesser aufweisenden Schalen 12, 13 gebildet, die mit ihren Böden jeweils an entgegengesetzten Enden des Schaltelementes 5 gehalten sind. Die den den grösseren Durchmesser aufweisende Schale 12 nimmt die den kleineren Durchmesser aufweisende Schale 13 auf. Die Schale 12 weist in ihrem Boden eine Öffnung auf, durch die ein mit dem potentialführenden Teil 2 des Überspannungsableiters galvanisch verbundener und ein Aussengewinde aufweisender Anschluss der Elektrode 7 geführt ist. Die Schale 12 ist mittels einer nicht bezeichneten Mutter fest mit dem oberen Ende des Schaltelementes 5 verbunden. An ihrem Rand trägt die Schale 12 mindestens ein ins Schaleninnere gerichtetes Kontaktelement 14, welches ringförmig ausgebildet ist und einen Innenkonus aufweist. Dieses Kontaktelement 14 ist mit einem Innengewinde versehen, welches mit einem Aussengewinde der Schale 12 zusammenwirkt. Ferner weist die Schale 12 Ausblasöffnungen 15 für Druckgas auf. Diese Ausblasöffnungen können mit einem feste Teile im Gehäuseinneren zurückhaltenden Filter versehen und so ausgebildet werden, dass austretendes Druckgas in eine vorbestimmte Richtung geführt wird.The metal housing 4 is of two different diameters having shells 12, 13 formed, each with their bottoms are held at opposite ends of the switching element 5. The shell 12 having the larger diameter takes the the smaller diameter shell 13. The shell 12 has an opening in its bottom through which a galvanic part 2 of the surge arrester connected and an external thread connection of the Electrode 7 is guided. The shell 12 is not by means of a designated nut firmly with the upper end of the switching element 5 connected. At its edge, the shell 12 carries at least one ins Contact element 14 directed inside the shell, which is ring-shaped is formed and has an inner cone. This contact element 14 is provided with an internal thread, which with a External thread of the shell 12 cooperates. Furthermore, the Shell 12 blow-out openings 15 for compressed gas. These blowouts can be restrained with a solid part inside the case Provide filters and be designed so that escaping compressed gas is guided in a predetermined direction.

Die Schale 13 weist in ihrem Boden ebenfalls eine Öffnung auf, durch die ein ein Aussengewinde aufweisender und an Erdpotential gelegter Anschluss der Elektrode 8 geführt ist. Die Schale 13 ist mittels einer nicht bezeichneten Mutter fest mit dem unteren Ende des Schaltelementes 5 verbunden. Die Schale 13 trägt auf ihrer von der Schale 12 abgedeckten Aussenseite ein beispielsweise als Farbbeschichtung ausgebildetes Anzeigeelement 16. Die Schale 13 ist konusartig aufgeweitet und ist im Bereich des Schalenrandes auf ihrer Aussenseite als elektrisches Kontaktelement 17 ausgebildet, welches an den Innenkonus des ringförmigen Kontaktelements 14 angepasst ist. Das Innere des Metallgehäuses 4 ist durch eine vom Boden der Schale 13 an den Rand der Schale 12 geführte Abdeckung 18 abgeschlossen.The shell 13 also has an opening in its bottom, through which an external thread has an earth potential laid connection of the electrode 8 is guided. The shell 13 is by means of an unspecified nut firmly with the lower end of the switching element 5 connected. The shell 13 carries on her from the shell 12 covered outside, for example as Color coating formed display element 16. The shell 13 is flared like a cone and is in the area of the shell edge on the outside as an electrical contact element 17 formed which on the inner cone of the annular contact element 14 is adjusted. The inside of the metal case 4 is by one from the bottom of the shell 13 to the edge of the shell 12 guided cover 18 completed.

Die Wirkungsweise der Anzeigevorrichtung 3 ist nun wie folgt: Unter normalen Betriebsbedingungen führt der Überspannungsableiter 1 lediglich einen kleinen Leckstrom, welcher typischerweise im mA-Bereich liegt. Dieser Leckstrom fliesst vom potentialführenden Teil 2 über die Elektrode 7, den Widerstand 10, die Elektrode 8 und einen mit dieser Elektrode 8 mittels einer Schraubverbindung galvanisch verbundenen, nicht dargestellten flexiblen Leiterabschnitt zur Erde ab. In entsprechender Weise werden vom Überspannungsableiter 1 garantierte Stromstösse, beispielsweise bis 100 kA 4/10µs, welche als Folge von Überdurch den Ableiter fliessen, zur Erde abgeführt, ohne dass die Anzeigevorrichtung 3 anspricht.The operation of the display device 3 is now as follows: The surge arrester leads under normal operating conditions 1 just a small leakage current, which is typically is in the mA range. This leakage current flows from the potential-carrying Part 2 on the electrode 7, the resistor 10, the Electrode 8 and one with this electrode 8 by means of a Screw connection galvanically connected, not shown flexible conductor section down to earth. In a similar way surges are guaranteed by surge arrester 1, for example up to 100 kA 4 / 10µs, which as a result of excess the arrester flow, discharged to earth without that the display device 3 responds.

Weist der Überspannungsableiter 1 oder in entsprechender Weise ein anderer elektrischer Apparat, beispielsweise ein Isolator eines Schalters oder eines Transformators, oder ein Isolator einer Hochspannungsanlage, einen Defekt auf, so fliesst ein Fehlerstrom im A- oder sogar kA-Bereich durch den als Stromsensor wirkenden ohmschen Widerstand 10. Der Widerstand 10 wird stark erhitzt und geht innerhalb weniger ms, etwa durch Schmelzen oder einen PTC-Übergang, in einen hochohmigen Zustand über. Der Fehlerstrom kommutiert nun unter Lichtbogenbildung in einen die Funkenstrecke 9 enthaltenden Strompfad. Die im Bereich der Funkenstrecke 9 angeordnete Sprengstoffladung ladung 11 wird durch den sich bildenden Lichtbogen gezündet. Das sich hierbei bildende Druckgas zersprengt das spröde Isolierstoffgehäuse 6 schlagartig und treibt dann die Elektrode 8 und die mit ihr starr verbundene Schale 13 nach unten bis die in Fig.2 dargestellte Zustand der Anzeigevorrichtung 3 erreicht ist. Das Druckgas wird durch die Ausblasöffnungen aus dem Inneren des von den Schalen 12 und 13 umschlossenen Metallgehäuses 4 ausgestossen. Bei der Zerstörung des Isolierstoffgehäuses 6 entstehende Splitter werden vom Metallgehäuse 4 im Gehäuseinneren zurückgehalten.Has the surge arrester 1 or in a corresponding manner another electrical apparatus, for example an insulator a switch or a transformer, or an insulator a high-voltage system, a defect flows in Residual current in the A or even kA range due to the current sensor acting ohmic resistance 10. The resistance 10 becomes strong heats up and goes within a few ms, for example by melting or a PTC transition, into a high-resistance state. Of the Residual current now commutates into an arc Spark gap 9 containing current path. The in the field of Spark gap 9 arranged explosive charge 11 is charged by the ignited arcing. The resultant Compressed gas suddenly blows up the brittle insulating material housing 6 and then drives the electrode 8 and the one rigidly connected to it Shell 13 down to the state shown in Fig.2 Display device 3 is reached. The compressed gas is through the Blow-out openings from the inside of the shells 12 and 13 enclosed metal housing 4 ejected. At the destruction of the insulating material 6 resulting splinters are from Metal housing 4 retained in the interior of the housing.

In dem in Fig.2 dargestellten Zustand haben sich die als Kontaktelement 17 ausgebildete konusartige Aufweitung der Schale 13 und das ringartig ausgebildete Kontaktelement 14 der feststehenden Schale 12 verklemmt. Der Fehlerstrom ist wird nicht mehr über die Funkenstrecke 9 des Schaltelements 5 geführt, sondern fliesst nun über die galvanisch mit der Elektrode 7 verbundene Schale 12, die miteinander kontaktierten Kontaktelemente 14 und 17 und die galvanisch mit der Elektrode 8 verbundene Schale 13 zur Erde ab. Der das Anzeigeelement 14 tragende Abschnitt der Schale 12 ist nun sichtbar geworden und signalisiert einem Beobachter den defekten Überspannungsableiter. In the state shown in Fig.2 have the as Contact element 17 formed conical widening of the shell 13 and the ring-shaped contact element 14 of the fixed shell 12 jammed. The fault current is not more over the spark gap 9 of the switching element 5, but now flows galvanically with the electrode 7 connected shell 12, the contact elements contacted with each other 14 and 17 and the galvanically with the electrode 8 connected shell 13 to earth. The display element 14 load-bearing section of the shell 12 has now become visible and signals the defective surge arrester to an observer.

Der defekte Überspannungsableiter 1 und die Anzeigevorrichtung 3 können nun ausgebaut und durch neue Geräte ersetzt werden.The defective surge arrester 1 and the display device 3 can now be removed and replaced with new devices.

Die Anzeigevorrichtung 3 kann durch Einbau eines neuen Schaltelementes 5 in besonders wirtschaftlicher Weise wieder betriebsbereit gemacht werden. Nach Abschrauben des Kontaktelements 14 und Lösen der beiden in den Figuren nicht bezeichneten Muttern sind lediglich die beiden Elektroden 7 und 8 zu entfernen und ist sodann nur noch das neue Schaltelement 5 einzusetzen und zu verschrauben.The display device 3 can by installing a new switching element 5 operational again in a particularly economical manner be made. After unscrewing the contact element 14 and loosening the two nuts not shown in the figures only the two electrodes 7 and 8 have to be removed then just insert and close the new switching element 5 screw together.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
ÜberspannungsableiterSurge arresters
22nd
potentialführendes Teilpotential-carrying part
33rd
AnzeigevorrichtungDisplay device
44th
MetallgehäuseMetal case
55
SchaltelementSwitching element
66
IsolierstoffgehäuseInsulating housing
7, 87, 8
ElektrodenElectrodes
99
FunkenstreckeSpark gap
1010th
Widerstandresistance
1111
SprengstoffladungExplosives
12, 1312, 13
SchalenPeel
1414
KontaktelementContact element
1515
AusblasöffnungenExhaust openings
1616
AnzeigeelementDisplay element
1717th
KontaktelementContact element
1818th
Abdeckungcover

Claims (9)

  1. Device for indicating a faulty condition of an electrical apparatus, in particular of a surge arrester (1), having a sensor for detecting a fault current flowing through the apparatus, a gas-tight insulating material housing (6) which accommodates the sensor, a spark gap (9), which is electrically conductively connected to a live part (2) of the apparatus, and an explosive charge (11), and an indicating element (16), characterized in that the insulating material housing (6) is surrounded by a two-piece metal housing (4) to which the indicating element (16) is fitted, and in that the sensor and the insulating material housing (6) are part of a switching element (5) in which, when the fault current occurs, the spark gap is triggered and causes the explosive material to explode, thereby causing the two parts of the metal housing (4) to be displaced with respect to one another, making the indicating element (16) visible and forming an electrical connection which carries the fault current.
  2. Indicating device according to Claim 1, characterized in that the metal housing (4) is formed by two shells (12, 13) which have different diameters and are each held by their bases at opposite ends of the switching element (5), a first shell (12), which has the larger diameter, accommodating a second shell (13), which has the smaller diameter and is fitted with the indicating element (16) on its outside.
  3. Indicating device according to Claim 2, characterized in that the second shell (13) is expanded like a cone, and in that the first shell (12) is fitted on its edge with at least one contact element (14) which is directed into the shell interior and makes contact with the cone-like expansion of the second shell (13) when the two shells (12, 13) are displaced, while maintaining the DC connection.
  4. Indicating device according to Claim 3, characterized in that the at least one contact element (14) is designed in an annular shape and has an inner cone which is matched to the cone-like expansion of the second shell (13).
  5. Indicating device according to one of Claims 2 to 4, characterized in that the interior of the metal housing (4) is closed by a cover (18) which is guided by the base of the second shell (13) on the edge of the first shell (12).
  6. Indicating device according to one of Claims 2 to 5, characterized in that at least one (12) of the two shells (12, 13) has blow-out openings (15) for the compressed gas which is formed.
  7. Indicating device according to Claim 1, characterized in that a non-reactive resistor (10), which is arranged in parallel with the spark gap (9), is provided as the sensor.
  8. Indicating device according to one of Claims 1 or 7, characterized in that the two electrodes (7, 8) of the spark gap (9) are held by the insulating material housing (6) of the switching element (5) and are each fitted with one of the two shells (12, 13) in an electrically conductive manner.
  9. Indicating device according to Claim 8, characterized in that the insulating material housing (6) is made of brittle material and, when the compressed gas is formed, can spring apart into at least two parts which are moved away from one another and each hold one of the two electrodes (7,8).
EP96810083A 1995-02-23 1996-02-09 Device for indicating a defective state of an electric apparatus, especially a surge arrester Expired - Lifetime EP0729209B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630036T SI0729209T1 (en) 1995-02-23 1996-02-09 Device for indicating a defective state of an electric apparatus, especially a surge arrester

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506307A DE19506307A1 (en) 1995-02-23 1995-02-23 Device for indicating a faulty state of an electrical apparatus, in particular a surge arrester
DE19506307 1995-02-23

Publications (2)

Publication Number Publication Date
EP0729209A1 EP0729209A1 (en) 1996-08-28
EP0729209B1 true EP0729209B1 (en) 1998-09-02

Family

ID=7754838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810083A Expired - Lifetime EP0729209B1 (en) 1995-02-23 1996-02-09 Device for indicating a defective state of an electric apparatus, especially a surge arrester

Country Status (15)

Country Link
US (1) US5650772A (en)
EP (1) EP0729209B1 (en)
JP (1) JP3663250B2 (en)
KR (1) KR100353660B1 (en)
CN (1) CN1050706C (en)
AU (1) AU700660B2 (en)
BR (1) BR9600783A (en)
CA (1) CA2160421C (en)
CZ (1) CZ286499B6 (en)
DE (2) DE19506307A1 (en)
ES (1) ES2124074T3 (en)
PL (1) PL179117B1 (en)
RU (1) RU2158460C2 (en)
SI (1) SI0729209T1 (en)
SK (1) SK280437B6 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107357A1 (en) * 2001-02-07 2002-08-22 Siemens Ag Signal device for displaying the response of a surge arrester
US10109399B2 (en) 2016-09-13 2018-10-23 Abb Schweiz Ag Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
WO2020233944A1 (en) 2019-05-22 2020-11-26 Siemens Aktiengesellschaft Disconnecting device for a surge arrester and arrangement
US11322934B2 (en) 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6031368A (en) * 1996-09-12 2000-02-29 S&C Electric Company Sensing apparatus for cable termination devices in power distribution systems
DE19637984A1 (en) * 1996-09-18 1998-03-19 Asea Brown Boveri Electrical apparatus, in particular surge arrester and system for displaying the state of this apparatus in a central evaluation device
AU9043198A (en) * 1997-08-11 1999-03-01 Chengeta, Cuthbert Lightning arrestor
DE19749522A1 (en) * 1997-11-08 1999-05-12 Asea Brown Boveri Electrical apparatus, in particular surge arrester, with a device for displaying a fault current
KR100660627B1 (en) 2005-02-28 2006-12-22 강영길 The defect indicator for a lightning rod device
KR101047879B1 (en) * 2008-07-21 2011-07-08 한국전력공사 Built-in charging unit for power equipment
DE102010047244A1 (en) * 2010-10-04 2012-04-05 Phoenix Contact Gmbh & Co. Kg Surge protector
WO2017148544A1 (en) * 2016-02-29 2017-09-08 Abb Schweiz Ag Disconnector device for surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
WO2019243030A1 (en) 2018-06-18 2019-12-26 Siemens Aktiengesellschaft Disconnecting device for a surge arrester
CA3138542A1 (en) 2019-04-29 2020-11-05 Hubbell Incorporated Disconnector device and overvoltage protection assembly including the same
DE102020215914A1 (en) 2020-12-15 2022-06-15 Siemens Energy Global GmbH & Co. KG Fuse arrangement of a surge arrester indicator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE655889C (en) * 1930-05-05 1938-01-25 Aeg Device for displaying the flashover on pylons with the help of explosion spark gaps
US2677817A (en) * 1950-07-10 1954-05-04 Harold L Rorden Flashover indicator
FR1122257A (en) * 1955-02-01 1956-09-04 Electrical protection device
US3573782A (en) * 1968-05-23 1971-04-06 United Aircraft Corp Current monitor
US4734823A (en) * 1985-11-01 1988-03-29 Joslyn Corporation Fault current interrupter and explosive disconnector for surge arrester
US5057810A (en) * 1991-02-14 1991-10-15 Hubbell Incorporated Arrester isolator-disconnector
US5237482A (en) * 1991-07-10 1993-08-17 Joslyn Corporation High voltage surge arrester with failed surge arrester signaling device
NO304400B1 (en) * 1992-03-30 1998-12-07 Sediver Sociutu Europ D Isolat Device for detecting and directing a fault current through a lightning conductor or insulator
US5341271A (en) * 1992-06-22 1994-08-23 Minnesota Mining And Manufacturing Company Surge arrester fault indicator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107357A1 (en) * 2001-02-07 2002-08-22 Siemens Ag Signal device for displaying the response of a surge arrester
DE10107357C2 (en) * 2001-02-07 2003-03-27 Siemens Ag Signaling device for displaying the response of a surge arrester
US10109399B2 (en) 2016-09-13 2018-10-23 Abb Schweiz Ag Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
EP3513468B1 (en) * 2016-09-13 2020-07-15 ABB Power Grids Switzerland AG Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
US11322934B2 (en) 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
US11682899B2 (en) 2016-09-13 2023-06-20 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
WO2020233944A1 (en) 2019-05-22 2020-11-26 Siemens Aktiengesellschaft Disconnecting device for a surge arrester and arrangement

Also Published As

Publication number Publication date
PL179117B1 (en) 2000-07-31
DE19506307A1 (en) 1996-08-29
SI0729209T1 (en) 1999-04-30
AU700660B2 (en) 1999-01-14
JP3663250B2 (en) 2005-06-22
ES2124074T3 (en) 1999-01-16
CN1050706C (en) 2000-03-22
KR100353660B1 (en) 2002-12-18
BR9600783A (en) 1999-10-13
JPH08255665A (en) 1996-10-01
SK280437B6 (en) 2000-02-14
DE59600489D1 (en) 1998-10-08
CA2160421C (en) 2004-09-07
CZ286499B6 (en) 2000-04-12
CZ53696A3 (en) 1996-09-11
CN1135109A (en) 1996-11-06
CA2160421A1 (en) 1996-08-24
PL312880A1 (en) 1996-09-02
AU4445696A (en) 1996-08-29
SK23396A3 (en) 1997-02-05
US5650772A (en) 1997-07-22
KR960032827A (en) 1996-09-17
EP0729209A1 (en) 1996-08-28
RU2158460C2 (en) 2000-10-27

Similar Documents

Publication Publication Date Title
EP0729209B1 (en) Device for indicating a defective state of an electric apparatus, especially a surge arrester
EP2025049B1 (en) Over-current protection device with additional mechanical trip, preferably implemented as a trip bolt, for use in over-voltage protection devices
DE2740695C2 (en) Surge arrester with a gas discharge tube spark gap and an auxiliary spark gap connected in parallel
DE60026552T2 (en) SURGE PROTECTION ELEMENT
DE2339564A1 (en) CONDUCTOR PROTECTION WITH ARRANGEMENT AND FAILURE MONITORING CIRCUIT
AU626205B2 (en) Lightning arrester on tower for power transmission
DE102014016830A1 (en) Overvoltage protection arrangement with short-circuiting device
DE2146574A1 (en) Surge arrester with explosive separator
WO1998037605A1 (en) Gas-filled surge protector with external short-circuiting device
DE10313045B3 (en) Short-circuit device for LV and MV equipment, has mechanically pre-stressed electrodes held apart by overvoltage protection device and brought into contact by failure of latter
EP1052665B1 (en) Short-circuiter
DE3910435C2 (en)
DE10025685A1 (en) Isolating switch device for high voltage surge absorber has least one ring electrode with electric field concentrating protrusion near ring electrode overlap that acts as spark ignition aid
EP0927445B1 (en) Electrical apparatus, particularly a surge arrester and a display system for the state of the apparatus in a central evaluation device
EP0064528A1 (en) Protection device against discharge overvoltages in a gas with concentric enclosing sleeve
CH658551A5 (en) Overvoltage suppressor
DE2217874A1 (en) Surge arrester
EP0915544B1 (en) Surge arrester with a fault current indicating device
EP1143585B1 (en) Surge arrester device
DE8025215U1 (en) Low voltage valve arrester
DE2619317C2 (en) Lightning protection device
DE2740694C2 (en) Surge arresters
EP3133613A1 (en) Corona ring
DE3620973A1 (en) OIL BATH TUBE LOCKING CARTRIDGE
EP0253223B1 (en) Surge arrester arrangement for a metallic, shielded gas-insulated electric device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB LI SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 960215

RAX Requested extension states of the european patent have changed

Free format text: SI PAYMENT 960215

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ASEA BROWN BOVERI AG

17P Request for examination filed

Effective date: 19970213

17Q First examination report despatched

Effective date: 19970311

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB LI SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 960215

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59600489

Country of ref document: DE

Date of ref document: 19981008

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19981105

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2124074

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: ASEA BROWN BOVERI AG TRANSFER- ABB SCHWEIZ HOLDING AG

Ref country code: CH

Ref legal event code: NV

Representative=s name: ABB SCHWEIZ AG INTELLECTUAL PROPERTY (CH-LC/IP)

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: ABB SCHWEIZ AG

Free format text: ABB SCHWEIZ HOLDING AG#BROWN BOVERI STRASSE 6#5400 BADEN (CH) -TRANSFER TO- ABB SCHWEIZ AG#BROWN BOVERI STRASSE 6#5400 BADEN (CH)

REG Reference to a national code

Ref country code: SI

Ref legal event code: IF

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050201

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050208

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20050210

Year of fee payment: 10

Ref country code: CH

Payment date: 20050210

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050217

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060210

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060901

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060209

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070212

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080229