EP1737091B1 - Overvoltage arrester, comprising a rail mountable basis part with electric connection pins as well as an exchangeable insert part - Google Patents

Overvoltage arrester, comprising a rail mountable basis part with electric connection pins as well as an exchangeable insert part Download PDF

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Publication number
EP1737091B1
EP1737091B1 EP06009455A EP06009455A EP1737091B1 EP 1737091 B1 EP1737091 B1 EP 1737091B1 EP 06009455 A EP06009455 A EP 06009455A EP 06009455 A EP06009455 A EP 06009455A EP 1737091 B1 EP1737091 B1 EP 1737091B1
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EP
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Prior art keywords
surge arrester
safety element
detection unit
error detection
transponder
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EP06009455A
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German (de)
French (fr)
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EP1737091A1 (en
Inventor
Peter Dr.Ing. Zahlmann
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Dehn SE and Co KG
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Dehn and Soehne GmbH and Co KG
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    • 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
    • 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
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure

Definitions

  • the invention relates to a surge arrester, comprising a rail-mounted base part with electrical terminals and a replaceable insert with at least one protective element and an error detection unit, which is operatively connected to a defect indicator, the defect indicator comprises a window in the housing of the male and an optical display element, according to the preamble of claim 1.
  • an overvoltage protection element in particular designed as a protective device for telecommunications lines, previously known.
  • This known protection device has a failure indicator, which allows to represent the exceeding of a load limit, even if there is another electrical fault in the system to be monitored.
  • a varistor is connected as a surge arrester by means of an elastic spring which is kept under tension, wherein a securing membrane made of a thermoplastic material is present, which keeps the elastic spring under tension and releases this spring when the varistor reaches a predetermined temperature reached.
  • the elastic spring is fixed to a housing at a first end and held at its second end by the securing diaphragm, wherein the securing diaphragm exerts a pulling force.
  • the resilient spring is designed to activate devices for indicating the destruction of the surge arrester when released by the safety membrane.
  • the elastic spring can ausgestaltend from an electric conductive material are prepared and are arranged opposite to the electrical contacts of the surge arrester, so that the state of the compound then changes when a thermally induced melting of the backup membrane takes place and thereafter the contact connection is opened. With the help of the known display part is thus ensured that a complete malfunction of the respective overvoltage protection element is visually recognizable.
  • an overvoltage protection device which has a rail-mountable base part with electrical connection terminals and an exchangeable plug-in part with at least one protective element and an error detection unit which is operatively connected to a defect indicator.
  • the defect indicator comprises a visible in the window of the male optical display element.
  • the error detection unit multi-level trained.
  • the fault detection unit detects multiple overvoltages reaching the thermal load range of the protection element, which, however, do not lead to total failure of the overall arrangement.
  • the error detection unit determines an overvoltage leading to the immediate failure of the protective element.
  • the function of the one or more protective elements not yet affecting multiple loads are represented by a first color transition and a total failure leading load of the protective element is represented by a second color transition of the optical display element.
  • the color transition is realized analogous to a traffic light display.
  • protection element fully functional, over yellow, replacement of protection element, to red, protection element defective, immediate replacement necessary, switched.
  • two protective elements and a switching device are provided in the plug.
  • the error detection unit can be read and queried via an RFID transponder located in the housing, wherein the RFID transponder is designed as a passive transponder with preferably inductively coupled power supply and has an identification circuit with memory function, which manufacturing and application-specific information as well as test and characteristic data.
  • the error detection unit short-circuits the transponder antenna circuit or interrupts this circuit.
  • the resonant circuit can be deliberately detuned by connecting or disconnecting antenna coil windings or resonant circuit capacitances.
  • the fault detection unit is at least one temperature-dependent switching device, in particular a thermal fuse, which is associated with the respective overvoltage protection element of the overvoltage protection device, thermally in contact.
  • the thermal fuse can be connected to a prestressed spring element, which realizes the respective color transition by displacing a mechanical element which serves for the optical display.
  • the respective color transition is initiated in the case of both elements as a function of reaching the maximum permissible load capacity.
  • the aforementioned RFID transponder can be arranged on a printed circuit board, wherein the antenna of the transponder is designed as a loop antenna along the outer edge regions of the printed circuit board executable.
  • the fault detection unit is connected to the circuit board in the form of at least one temperature-dependent switching device.
  • a hand-held reader makes it possible to interrogate the function of the RFID transponder, to read out any data stored in the transponder memory chip and to exchange the respective overvoltage protection device depending on the state control result in connection with the signaling via the first color transition.
  • the RFID transponder can be designed as inductively coupled transponder with additional sensor for detecting physical quantities that are relevant to the state of the protective elements or in the surge protective device.
  • the transponder may comprise a temperature sensor for detecting the temperature and thus the load of the protective element (s).
  • the figure shows different representations of the surge arrester according to the invention with different fault signaling.
  • the surge arrester shown in each case comprises a rail-mounted base part 1 with frontally arranged electrical terminals and provided on the underside means for DIN rail mounting.
  • the base part 1 receives a plug-in part 2, which comprises at least one, but preferably two protective elements (not shown) and an error detection unit.
  • the error detection unit is in operative connection with a defect indicator.
  • the defect indicator is designed as a window 3 in the housing of the male part 2 in conjunction with an optical display element located below the window.
  • a second color transition occurs in the window within the housing of the male part 2, either directly from green to red or from yellow to red (right figure in the figure).
  • two protective elements and a switching device are arranged in the plug.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Fuses (AREA)
  • Protection Of Static Devices (AREA)

Abstract

An over-voltage disconnection device comprises a base (1), insert comprising protection and fault-recognition elements (2) and a window (3) displaying different colors according to the condition of the fault-recognition element namely thermal overload of the protection element or total disconnection.

Description

Die Erfindung betrifft einen Überspannungsableiter, umfassend ein schienenmontierbares Basisteil mit elektrischen Anschlußklemmen sowie ein auswechselbares Einsteckteil mit mindestens einem Schutzelement und einer Fehlererkennungseinheit, welche mit einer Defektanzeige in Wirkverbindung steht, wobei die Defektanzeige ein Fenster im Gehäuse des Einsteckteils und ein optisches Anzeigeelement umfaßt, gemäß Oberbegriff des Anspruchs 1.The invention relates to a surge arrester, comprising a rail-mounted base part with electrical terminals and a replaceable insert with at least one protective element and an error detection unit, which is operatively connected to a defect indicator, the defect indicator comprises a window in the housing of the male and an optical display element, according to the preamble of claim 1.

Aus der EP 0 845 843 B1 ist ein Überspannungsschutzelement, insbesondere ausgebildet als Schutzvorrichtung für Telekommunikationsleitungen, vorbekannt. Diese bekannte Schutzvorrichtung besitzt eine Ausfallanzeige, die es erlaubt, das Überschreiten einer Belastungsgrenze darzustellen, und zwar auch dann, wenn eine sonstige elektrische Störung im zu überwachenden System vorliegt. Hierfür ist ein Varistor als Überspannungsableiter mit Hilfe einer elastischen Feder, die unter Spannung gehalten wird, kontaktiert, wobei eine Sicherungsmembran aus einem thermoplastischen Material vorhanden ist, welches die elastische Feder unter Spannung hält und das diese Feder dann freigibt, wenn der Varistor eine vorgegebene Temperatur erreicht. Konkret ist die elastische Feder mit einem ersten Ende an einem Gehäuse befestigt und mit ihrem zweiten Ende durch die Sicherungsmembran gehalten, wobei die Sicherungsmembran eine Zugkraft ausübt. Die elastische Feder ist so ausgelegt, daß Vorrichtungen zum Anzeigen der Zerstörung des Überspannungsableiters aktiviert werden, wenn diese durch die Sicherungsmembran freigegeben wird. Die elastische Feder kann ausgestaltend aus einem elektrisch leitfähigen Material hergestellt werden und gegenüber den elektrischen Kontakten des Überspannungsableiters angeordnet werden, so daß sich der Zustand der Verbindung dann verändert, wenn ein thermisch bedingtes Schmelzen der Sicherungsmembran erfolgt und hiernach die Kontaktverbindung geöffnet wird. Mit Hilfe des vorbekannten Anzeigeteils wird also sichergestellt, daß ein vollständiger Funktionsausfall des jeweiligen Überspannungsschutzelements optisch erkennbar ist. Möglicherweise bereits vorliegende Belastungen, die allerdings noch nicht zu einem kompletten Ausfall des Überspannungsableiters führten, sind nicht erkennbar, so daß bei einer routinemäßigen Kontrolle von z.B. in einem Hausanschlußkasten vorgesehenen Ableitern ein vorsorglicher Austausch bereits belasteter, jedoch noch funktionsfähiger Elemente in sinnvoller Weise nicht möglich ist.From the EP 0 845 843 B1 is an overvoltage protection element, in particular designed as a protective device for telecommunications lines, previously known. This known protection device has a failure indicator, which allows to represent the exceeding of a load limit, even if there is another electrical fault in the system to be monitored. For this purpose, a varistor is connected as a surge arrester by means of an elastic spring which is kept under tension, wherein a securing membrane made of a thermoplastic material is present, which keeps the elastic spring under tension and releases this spring when the varistor reaches a predetermined temperature reached. Concretely, the elastic spring is fixed to a housing at a first end and held at its second end by the securing diaphragm, wherein the securing diaphragm exerts a pulling force. The resilient spring is designed to activate devices for indicating the destruction of the surge arrester when released by the safety membrane. The elastic spring can ausgestaltend from an electric conductive material are prepared and are arranged opposite to the electrical contacts of the surge arrester, so that the state of the compound then changes when a thermally induced melting of the backup membrane takes place and thereafter the contact connection is opened. With the help of the known display part is thus ensured that a complete malfunction of the respective overvoltage protection element is visually recognizable. Possibly already existing loads, which, however, have not yet led to a complete failure of the surge arrester, are not recognizable, so that in a routine control of, for example, provided in a terminal box arresters precautionary replacement of already loaded, but still functional elements in a meaningful way is not possible ,

Zur Störmeldung von Überspannungsschutzgeräten, die beispielsweise Gasentladungsableiter enthalten, ist es außerdem bekannt, diese über eine thermische Auslösevorrichtung auf mögliche Temperaturüberschreitungen zu überwachen.To report malfunction of overvoltage protection devices containing, for example, gas discharge, it is also known to monitor them via a thermal trip device for possible temperature exceedances.

In der DE 101 34 752 A1 wird in diesem Sinne ein Auslösemechanismus beschrieben, wobei durch das Schmelzen eines dort vorhandenen Lotes im Falle einer Überlastung des Gasentladungsableiters eine Fehlerüberwachung realisiert wird.In the DE 101 34 752 A1 In this sense, a triggering mechanism is described, wherein an error monitoring is realized by the melting of a solder existing there in case of overload of the gas discharge arrester.

Gemäß DE 199 07 319 A1 oder EP 0 755 582 B1 wird erläutert, wie ein thermischer Auslösemechanismus mit einem Signalisierungskontakt versehen werden kann, um eine Anzeige des Fehlerzustands mit Fernmeldeeigenschaften zu ermöglichen.According to DE 199 07 319 A1 or EP 0 755 582 B1 It will be explained how a thermal trip mechanism can be provided with a signaling contact to allow an indication of the fault condition with telecommunications characteristics.

Bei der DE 39 08 236 A1 handelt es sich um eine Fehlerauslösung und Anzeige über temperaturabhängige, sogenannte PTC-Widerstände, die bei einer bestimmten Erwärmung hochohmig werden und eine optische oder akustische Anzeige auslösen können. Nachteilig ist hier, daß die Energie für die akustische oder optische Anzeige aus dem Stromkreis entnommen werden muß, in dem das Überspannungsschutzgerät angeordnet ist. Eine Fehlerfernmeldung ist bei dieser Lösung des Standes der Technik nicht möglich.In the DE 39 08 236 A1 it is an error triggering and display of temperature-dependent, so-called PTC resistors, which become high-impedance during a certain heating and can trigger a visual or audible indication. The disadvantage here is that the energy for the acoustic or optical display must be removed from the circuit in which the overvoltage protection device is arranged. A remote fault message is not possible with this solution of the prior art.

In elektrischen Anlagen sind Revisionen in gewissen Zeitabständen durchzuführen, bei denen alle Anlagenkomponenten einer Überprüfung zu unterziehen sind.In electrical systems, revisions must be carried out at certain intervals, during which all system components must be subjected to a check.

Überspannungsschutzgeräte, die keine Meldevorrichtung bezüglich ihres aktuellen Funktionsstatus besitzen, müssen demontiert werden und sind diskret mit einem Meßgerät zu untersuchen. Zur Dokumentation der Revision in Anlagen mit hohen Sicherheitsanforderungen, z.B. in Kraftwerken oder in Industrieanlagen der Petrochemie, ist darüber hinaus eine Protokollierung der Überprüfung mit Darstellung der einzelnen Überprüfungsschritte und -ergebnisse erforderlich.Surge protection devices that do not have a signaling device with regard to their current functional status must be dismantled and discretely examined with a measuring device. To document the revision in systems with high safety requirements, e.g. in power stations or in petrochemical plants, it is also necessary to log the inspection with a description of the individual inspection steps and results.

Am Markt derzeit verfügbare Überspannungsschutzgeräte mit einer Fehleranzeige am Gerät, beispielsweise das steckbare Netz-Überspannungsschutzgerät VALVETRAB MS der Firma Phoenix Contact GmbH & Co. KG ermöglicht zwar eine Kontrolle vor Ort oder eine Fehlermeldung, es ist jedoch nicht erkennbar, ob das Schutzelement im jeweiligen Überspannungsschutzgerät bereits einmal in einen Grenzbereich der Belastung gelangte, ohne jedoch vollständig auszufallen. Außerdem ist beim Stand der Technik eine automatisierte Protokollierung nicht möglich bzw. wird nicht unterstützt.On the market currently available overvoltage protection devices with an error display on the device, for example, the pluggable power surge protection device VALVETRAB MS Phoenix Contact GmbH & Co. KG allows on-site control or error message, but it is not clear whether the protection element in each surge protection device once reached a limit of the load, but did not completely fail. In addition, in the prior art automated logging is not possible or is not supported.

Aus der EP 0 867 896 A1 ist gemäß Oberbegriff des Anspruchs 1, eine Überspannungsschutzvorrichtung bekannt, die ein schienenmontierbares Basisteil mit elektrischen Anschlussklemmen sowie ein auswechselbares Einsteckteil mit mindestens einem Schutzelement und einer Fehlererkennungseinheit aufweist, welche mit einer Defektanzeige in Wirkverbindung steht. Die Defektanzeige umfasst ein im Fenster des Einsteckteils erkennbares optisches Anzeigeelement.From the EP 0 867 896 A1 According to the preamble of claim 1, an overvoltage protection device is known which has a rail-mountable base part with electrical connection terminals and an exchangeable plug-in part with at least one protective element and an error detection unit which is operatively connected to a defect indicator. The defect indicator comprises a visible in the window of the male optical display element.

Bei der vorbekannten EP 0 867 896 A1 wird bei einer Ausführungsform vorgeschlagen, zwei Überspannungsschutzelemente, nämlich Varistoren, in einem Gehäuse, durch eine Trennwand separiert unterzubringen, wobei jedes der Überspannungsschutzelemente mit einem optischen Anzeigeelement in Verbindung steht, wodurch der Ausfall bereits eines der Elemente erkennbar ist.In the known EP 0 867 896 A1 In one embodiment, it is proposed to accommodate two overvoltage protection elements, namely varistors, in a housing, separated by a partition wall, each of the overvoltage protection elements being connected to an optical display element, whereby the failure of one of the elements can already be detected.

Aus dem Vorstehenden ist es daher Aufgabe der Erfindung, einen weiterentwickelten Überspannungsableiter, umfassend ein schienenmontierbares Basisteil mit elektrischen Anschlußklemmen sowie ein auswechselbares Einsteckteil mit mindestens einem Schutzelement und einer Fehlererkennungseinheit anzugeben, welche mit einer Defektanzeige in Wirkverbindung steht, und wobei die Überprüfung und Überwachung des Zustands eines derartigen Überspannungsableiters, respektive ein sinnvoller-Austausch je nach historischer Belastungssituation in einfacher und insgesamt ökonomischer Weise durchführbar ist.From the foregoing, it is therefore an object of the invention to provide a further developed surge arrester comprising a rail-mountable base part with electrical terminals and a replaceable male part with at least one protective element and an error detection unit, which is in operative connection with a defect indicator, and wherein the checking and monitoring of the state Such a surge arrester, or a meaningful exchange depending on the historical load situation in a simple and overall economic way is feasible.

Die Lösung der Aufgabe der Erfindung erfolgt durch einen Überspannungsableiter gemäß Merkmalskombination des Anspruchs 1, wobei die Unteransprüche mindestens zweckmäßige Ausgestaltungen und Weiterbildungen darstellen.The object of the invention is achieved by a surge arrester according to feature combination of claim 1, wherein the dependent claims represent at least expedient refinements and developments.

Bei dem erfindungsgemäßen Überspannungsableiter, umfassend ein schienenmontierbares Basisteil mit elektrischen Anschlußklemmen sowie ein auswechselbares Einsteckteil mit mindestens einem Schutzelement und einer Fehlererkennungseinheit, welche mit einer Defektanzeige in Wirkverbindung steht, wobei die Defektanzeige ein Fenster im Gehäuse des Einsteckteils und ein optisches Anzeigeelement umfaßt, ist die Fehlererkennungseinheit mehrstufig ausgebildet. Konkret erfaßt die Fehlererkennungseinheit einerseits mehrfache, den thermischen Belastungsbereich des Schutzelements erreichende Überspannungen, die allerdings nicht zu einem Totalausfall der Gesamtanordnung führen. Andererseits ermittelt die Fehlererkennungseinheit eine, zum sofortigen Ausfall des Schutzelements führende Überspannung.In the surge arrester according to the invention, comprising a rail-mountable base part with electrical terminals and an exchangeable plug-in part with at least one protective element and an error detection unit, which is in operative connection with a defect indicator, wherein the defect indicator includes a window in the housing of the male and an optical display element, the error detection unit multi-level trained. Concretely, the fault detection unit detects multiple overvoltages reaching the thermal load range of the protection element, which, however, do not lead to total failure of the overall arrangement. On the other hand, the error detection unit determines an overvoltage leading to the immediate failure of the protective element.

Die Funktion des oder der Schutzelemente noch nicht beeinträchtigende mehrfache Belastungen werden durch einen ersten Farbübergang und eine zum Totalausfall führende Belastung des Schutzelements wird durch einen zweiten Farbübergang des optischen Anzeigeelements dargestellt.The function of the one or more protective elements not yet affecting multiple loads are represented by a first color transition and a total failure leading load of the protective element is represented by a second color transition of the optical display element.

In bevorzugter Ausgestaltung der Erfindung ist der Farbübergang analog einer Ampelanzeige realisiert. Hier wird von Grün, Schutzelement voll funktionsfähig, über Gelb, Austausch des Schutzelements empfohlen, zu Rot, Schutzelement defekt, sofortiger Austausch notwendig, umgeschaltet.In a preferred embodiment of the invention, the color transition is realized analogous to a traffic light display. Here is recommended by green, protection element fully functional, over yellow, replacement of protection element, to red, protection element defective, immediate replacement necessary, switched.

In einer weiteren Ausgestaltung der Erfindung sind im Einsteckteil zwei Schutzelemente sowie eine Umschalteinrichtung vorgesehen.In a further embodiment of the invention, two protective elements and a switching device are provided in the plug.

Bei einem Erreichen der Belastungsgrenze des einen (ersten) Schutzelements wird dann auf ein anderes (zweites) Schutzelement umgeschaltet und es wird dieser Umschaltvorgang durch den ersten Farbübergang signalisiert.Upon reaching the load limit of the one (first) protection element is then switched to another (second) protection element and this switching process is signaled by the first color transition.

Bei einer regelmäßigen Wartung kann dann erkannt werden, daß das betreffende Schutzelement schon einmal bestimmten kritischen Belastungen ausgesetzt war, an sich zwar noch funktionsfähig ist und seine Schutzfunktion weiter erfüllt, jedoch höchst vorsorglich ein Austausch empfehlenswert ist.With a regular maintenance can then be recognized that the protective element in question has ever been exposed to certain critical loads, in itself is still functional and its protective function continues to meet, but highly precautionary replacement is recommended.

Bei Erreichen der Belastungsgrenze des zweiten Schutzelements der vorbeschriebenen Anordnung mit mehreren, über eine Umschalteinrichtung verbundenen Schutzelementen findet dann der zweite Farbübergang statt, welcher symbolisiert, daß der gesamte Überspannungsableiter nicht mehr funktionsfähig ist und ein sofortiger Austausch vorgenommen muß.Upon reaching the load limit of the second protective element of the above-described arrangement with several, via a switching device connected protective elements then the second color transition takes place, which symbolizes that the entire surge arrester is no longer functional and an immediate replacement must be made.

In einer weiteren Ausführungsform der Erfindung ist die Fehlererkennungseinheit über einen im Gehäuse befindlichen RFID-Transponder ausles- und abfragbar, wobei der RFID-Transponder als passiver Transponder mit bevorzugt induktiv gekoppelter Spannungsversorgung ausgeführt ist und eine Identifikationsschaltung mit Speicherfunktion aufweist, welche herstellungs- und anwendungsspezifische Informationen sowie Prüf- und Kenndaten enthält. Im Fehlerfall des Überspannungsschutzgeräts schließt die Fehlererkennungseinheit den Transponder-Antennenkreis kurz oder unterbricht diesen Kreis. Alternativ kann durch Zu- oder Abschalten von Antennenspulenwindungen oder Schwingkreiskapazitäten der Schwingkreis gezielt verstimmt werden.In a further embodiment of the invention, the error detection unit can be read and queried via an RFID transponder located in the housing, wherein the RFID transponder is designed as a passive transponder with preferably inductively coupled power supply and has an identification circuit with memory function, which manufacturing and application-specific information as well as test and characteristic data. In the event of an error of the overvoltage protection device, the error detection unit short-circuits the transponder antenna circuit or interrupts this circuit. Alternatively, the resonant circuit can be deliberately detuned by connecting or disconnecting antenna coil windings or resonant circuit capacitances.

Die Fehlererkennungseinheit ist mindestens eine temperaturabhängige Schalteinrichtung, insbesondere eine Thermosicherung, welche dem jeweiligen Überspannungsschutzelement des Überspannungsschutzgeräts, thermisch in Kontakt stehend, zugeordnet ist. In an sich bekannter Weise kann die Thermosicherung mit einem vorgespannten Federelement in Verbindung stehen, welches den jeweiligen Farbübergang durch Verschieben eines mechanischen Elements, das der optischen Anzeige dient, realisiert.The fault detection unit is at least one temperature-dependent switching device, in particular a thermal fuse, which is associated with the respective overvoltage protection element of the overvoltage protection device, thermally in contact. In a manner known per se, the thermal fuse can be connected to a prestressed spring element, which realizes the respective color transition by displacing a mechanical element which serves for the optical display.

Für das Erkennen eines Fehlerzustands wird auf die Erwärmung des oder der Schutzelemente bei maximal zulässiger Verlustleistung abgestellt. Für den ersten Farbübergang kann ein geringerer Wert als die maximal zulässige Stoßstrombelastbarkeit vorgegeben werden.For the detection of a fault condition is placed on the heating of the protective elements or at maximum allowable power loss. For the first color transition, a lower value than the maximum permissible surge current capability can be specified.

Bei einer Umschalteinrichtung mehrerer Schutzelemente wird bei beiden Elementen der jeweilige Farbübergang in Abhängigkeit vom Erreichen der maximal zulässigen Belastbarkeit eingeleitet.In the case of a switching device for a plurality of protective elements, the respective color transition is initiated in the case of both elements as a function of reaching the maximum permissible load capacity.

Der vorerwähnte RFID-Transponder kann auf einer Leiterplatte angeordnet werden, wobei die Antenne des Transponders als Rahmenantenne entlang der Außenrandbereiche der Leiterplatte ausführbar ist.The aforementioned RFID transponder can be arranged on a printed circuit board, wherein the antenna of the transponder is designed as a loop antenna along the outer edge regions of the printed circuit board executable.

Zwischen den Antennenspulen-Anschlußenden oder zwischen einem Antennenspulen-Anschlußende und dem zugehörigen Eingang der Identifikationsschaltung ist die Fehlererkennungseinheit auf der Leiterplatte in Form mindestens einer temperaturabhängigen Schalteinrichtung angeschlossen.Between the antenna coil terminal ends or between an antenna coil terminal end and the associated input of the identification circuit, the fault detection unit is connected to the circuit board in the form of at least one temperature-dependent switching device.

Über ein Handlesegerät besteht die Möglichkeit, die Funktion des RFID-Transponders abzufragen, gegebenenfalls im Transponder-Speicherchip abgelegte Daten auszulesen und je nach Zustandskontrollergebnis in Verbindung mit der Signalisierung über den ersten Farbübergang einen Austausch des jeweiligen Überspannungsschutzgeräts vorzunehmen.A hand-held reader makes it possible to interrogate the function of the RFID transponder, to read out any data stored in the transponder memory chip and to exchange the respective overvoltage protection device depending on the state control result in connection with the signaling via the first color transition.

Weiter ausgestaltend kann der RFID-Transponder als induktiv gekoppelter Transponder mit zusätzlichem Sensor zur Erfassung physikalischer Größen, die für den Zustand des oder der Schutzelemente im Überspannungsschutzgerät relevant sind, ausgeführt werden.
Konkret kann hier der Transponder einen Temperatursensor zur Erfassung der Temperatur und damit der Belastung des oder der Schutzelemente umfassen.Next ausgestaltend the RFID transponder can be designed as inductively coupled transponder with additional sensor for detecting physical quantities that are relevant to the state of the protective elements or in the surge protective device.
In concrete terms, the transponder may comprise a temperature sensor for detecting the temperature and thus the load of the protective element (s).

Die Erfindung soll nachstehend anhand eines Ausführungsbeispiels sowie unter Zuhilfenahme einer Figur näher erläutert werden.The invention will be explained below with reference to an embodiment and with the aid of a figure.

Die Figur zeigt hierbei verschiedene Darstellungen des erfindungsgemäßen Überspannungsableiters mit unterschiedlicher Fehlersignalisierung.The figure shows different representations of the surge arrester according to the invention with different fault signaling.

Der jeweils dargestellte Überspannungsableiter umfaßt ein schienenmontierbares Basisteil 1 mit stirnseitig angeordneten elektrischen Anschlußklemmen sowie unterseitig vorgesehenen Mitteln zur Hutschienenmontage.The surge arrester shown in each case comprises a rail-mounted base part 1 with frontally arranged electrical terminals and provided on the underside means for DIN rail mounting.

Das Basisteil 1 nimmt ein Einsteckteil 2 auf, welches mindestens ein, jedoch bevorzugt zwei Schutzelemente (nicht gezeigt) und eine Fehlererkennungseinheit umfaßt.The base part 1 receives a plug-in part 2, which comprises at least one, but preferably two protective elements (not shown) and an error detection unit.

Die Fehlererkennungseinheit steht mit einer Defektanzeige in Wirkverbindung. Die Defektanzeige ist als Fenster 3 im Gehäuse des Einsteckteils 2 in Verbindung mit einem unterhalb des Fensters befindlichen optischen Anzeigeelement ausgeführt.The error detection unit is in operative connection with a defect indicator. The defect indicator is designed as a window 3 in the housing of the male part 2 in conjunction with an optical display element located below the window.

Dann, wenn der Überspannungsableiter mit den im Einsteckteil befindlichen Schutzelementen voll funktionsfähig ist, erscheint im Fenster 3 des Gehäuses des Einsteckteils 2 eine bevorzugt grüne Farbdarstellung (linke Abbildung gemäß Figur).Then, when the surge arrester with the protection elements located in the plug is fully functional, appears in the window 3 of the housing of the plug 2 a preferably green color representation (left figure in FIG).

Dann, wenn eine mehrfache, den Belastungsbereich des Schutzelements erreichende Überspannung vorlag oder eines von mehreren Schutzelementen bereits ausgefallen ist, findet ein Farbwechsel im Fenster 3 statt, und zwar bevorzugt von grün nach gelb (mittlere Abbildung der Figur).Then, if a multiple, the load range of the protection element reached overvoltage or one of several protection elements has already failed, a color change takes place in the window 3, and preferably from green to yellow (middle figure of the figure).

Wenn ein Totalausfall des oder der Schutzelemente über die Fehlererkennungseinheit festgestellt wurde, findet ein zweiter Farbübergang im Fenster innerhalb des Gehäuses des Einsteckteils 2 statt, und zwar entweder unmittelbar von grün nach rot oder von gelb nach rot (rechte Abbildung gemäß Figur).If a total failure of the protection element (s) has been detected by the error detection unit, a second color transition occurs in the window within the housing of the male part 2, either directly from green to red or from yellow to red (right figure in the figure).

Wie oben erläutert, wird der Farbübergang analog einer Ampelanzeige von grün, Schutzelement voll funktionsfähig, über gelb, Austausch des Schutzelements empfohlen, zu rot, Schutzelement defekt, sofortiger Austausch, realisiert.As explained above, the color transition analogous to a traffic light display of green, protective element fully functional, yellow, replacement of the protective element is recommended, too red, protection element defective, immediate replacement realized.

Bei einer Ausführungsvariante der Erfindung sind im Einsteckteil zwei Schutzelemente sowie eine Umschalteinrichtung angeordnet.In one embodiment of the invention, two protective elements and a switching device are arranged in the plug.

Beim Erreichen der Strombelastbarkeitsgrenze des ersten Schutzelements und gegebenenfalls vorliegender thermischer Überlastung dieses wird auf das zweite Schutzelement umgeschaltet. Diese Umschaltung vom ersten auf das zweite Schutzelement wird durch den ersten Farbübergang dargestellt.Upon reaching the current carrying capacity limit of the first protective element and optionally present thermal overload this is switched to the second protective element. This switching from the first to the second protection element is represented by the first color transition.

Beim Erreichen der Überlastungsgrenze auch des zweiten Schutzelements findet dann der erwähnte zweite Farbübergang (Totalausfallanzeige) statt.When reaching the overload limit and the second protection element then takes place the mentioned second color transition (total failure indication).

Claims (6)

  1. A surge arrester, comprising a rail-mountable base part with electrical connection terminals and an exchangeable plug-in part having at least one safety element and an error detection unit operatively connected to a defect display, wherein the defect display comprises a window in the housing of the plug-in part and an optical display element and the error detection unit is configured to include multiple stages and detects, on the one hand, multiple overvoltages reaching the thermal load range of the safety element, and, on the other hand, a load resulting in the immediate failure of the safety element,
    characterized in that
    multiple loads altogether not yet affecting the function of the safety element are represented by a first color transition and a load of the safety element resulting in the total failure is represented by a second color transition of the optical display element.
  2. A surge arrester according to claim 1,
    characterized in that
    the color transition is realized analogously to a traffic light indication, from green, safety element fully functional, via yellow, exchange of safety element recommended, to red, safety element defect, immediate exchange.
  3. A surge arrester according to one of the preceding claims,
    characterized in that
    the error detection unit can be read out and inquired by means of an RFID transponder disposed in the housing, wherein the RFID transponder is configured as a passive transponder with an inductively coupled power supply and includes an identification circuit with a memory function containing production-specific and application-specific information as well as test data and characteristic data, wherein, in the event of an error of the surge arrester, the error detection unit short-circuits or interrupts the transponder antenna circuit or deliberately detunes the oscillating circuit by switching in or off antenna coil windings or oscillating circuit capacities.
  4. A surge arrester according to claim 3,
    characterized in that
    the error detection unit comprises at least one temperature-dependent switching device, especially a thermal safety device, allocated to the respective surge arrester element of the surge arrester in thermal contact.
  5. A surge arrester according to claim 3 or 4,
    characterized in that
    the detection of an error condition is based on the temperature rise of the safety element(s) at a maximum permissible surge current carrying capacity.
  6. A surge arrester according to one of claims 3 to 5,
    characterized in that
    the RFID transponder is arranged on a circuit board and that the antenna of the transponder is configured as a frame antenna along the outer peripheral areas of the circuit board.
EP06009455A 2005-05-18 2006-05-08 Overvoltage arrester, comprising a rail mountable basis part with electric connection pins as well as an exchangeable insert part Not-in-force EP1737091B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06009455T PL1737091T3 (en) 2005-05-18 2006-05-08 Overvoltage arrester, comprising a rail mountable basis part with electric connection pins as well as an exchangeable insert part

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005007771 2005-05-18
DE202005009123U DE202005009123U1 (en) 2005-05-18 2005-06-10 Overvoltage disconnection device especially for telecommunications has protection and fault recognition units with visual color display according to device condition

Publications (2)

Publication Number Publication Date
EP1737091A1 EP1737091A1 (en) 2006-12-27
EP1737091B1 true EP1737091B1 (en) 2007-07-25

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EP06009455A Not-in-force EP1737091B1 (en) 2005-05-18 2006-05-08 Overvoltage arrester, comprising a rail mountable basis part with electric connection pins as well as an exchangeable insert part

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EP (1) EP1737091B1 (en)
CN (1) CN1866657B (en)
AT (1) ATE368317T1 (en)
DE (2) DE202005009123U1 (en)
PL (1) PL1737091T3 (en)

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EP3349318A4 (en) * 2015-09-07 2019-07-17 Seari Electric Technology Co., Ltd. Surge protection device base
DE102012004716B4 (en) * 2012-03-07 2021-02-11 Dehn Se + Co Kg Circuit arrangement for status control and logging of surge protection devices or surge protection systems

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DE102008025501A1 (en) 2008-05-28 2009-12-03 Werner Turck Gmbh & Co. Kg Overvoltage protection circuit for protecting signal line from overvoltage during lightning strike, has set of overvoltage arresters connected to another arrester set, which provides current when voltage exceeds threshold value
DE102010004459B4 (en) * 2010-01-12 2020-01-16 Phoenix Contact Gmbh & Co. Kg Arrangement and method with a surge protection device
DE102010007428A1 (en) * 2010-02-09 2011-08-11 Phoenix Contact GmbH & Co. KG, 32825 Snubber
DE102011052689B4 (en) 2011-08-12 2016-09-01 Phoenix Contact Gmbh & Co. Kg Gas-filled surge arrester with indirect monitoring of a short-circuit spring
CN104393494A (en) * 2014-07-24 2015-03-04 四川睿联安电气有限公司 Hot-pluggable SPD module
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DE202022104860U1 (en) 2022-08-29 2022-12-23 Phoenix Contact Gmbh & Co. Kg Electronic device with queryable health status display

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DE102012004716B4 (en) * 2012-03-07 2021-02-11 Dehn Se + Co Kg Circuit arrangement for status control and logging of surge protection devices or surge protection systems
EP3349318A4 (en) * 2015-09-07 2019-07-17 Seari Electric Technology Co., Ltd. Surge protection device base

Also Published As

Publication number Publication date
CN1866657A (en) 2006-11-22
DE502006000040D1 (en) 2007-09-06
CN1866657B (en) 2012-04-18
DE202005009123U1 (en) 2005-09-22
PL1737091T3 (en) 2007-12-31
EP1737091A1 (en) 2006-12-27
ATE368317T1 (en) 2007-08-15

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