DE19615047A1 - Socket entrance integrated with fault current circuit breaker in common housing - Google Patents
Socket entrance integrated with fault current circuit breaker in common housingInfo
- Publication number
- DE19615047A1 DE19615047A1 DE1996115047 DE19615047A DE19615047A1 DE 19615047 A1 DE19615047 A1 DE 19615047A1 DE 1996115047 DE1996115047 DE 1996115047 DE 19615047 A DE19615047 A DE 19615047A DE 19615047 A1 DE19615047 A1 DE 19615047A1
- Authority
- DE
- Germany
- Prior art keywords
- residual current
- circuit breaker
- diverse
- current circuit
- socket according
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
- H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
- H01H2085/466—Circuit arrangements not adapted to a particular application of the protective device with remote controlled forced fusing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine fehlerstromgeschützte Steckdose gemäß dem Oberbe griff des Anspruchs 1.The invention relates to a fault-protected socket according to the Oberbe handle of claim 1.
Fehlerstromgeschützte Steckdosen sind seit langem bekannt geworden, u. a. aus den EP 0641 044 und EP 0641 045. Da es sich bei diesen Steckdosen insbesondere darum handelt, die bekannten, relativ großen Fehlerstromschutzschalter in einer verhältnismäßig kleinen Steckdose unterzubringen, zielten die erwähnten Europäischen Patentanmeldungen auf konstruktive Lösungen ab. Diesen fehlerstromgeschützten Steckdosen haften die gleichen Nachteile an, wie allen herkömmlichen, sich auf dem Markt befindenden Fehlerstromschutzschaltern: Ihre Ausfallquote ist für einen Schutzschalter von dem gegebenenfalls das Leben von Menschen abhängt, viel zu groß. Diese Problematik wird ausführlich in dem Artikel von D. Kieback in der Zeitschrift ELEKTRIE, Berlin 49 (1995)4, dargestellt.Residual current-protected sockets have long been known, u. a. from the EP 0641 044 and EP 0641 045. Since these sockets in particular the known, relatively large residual current circuit breaker in one To accommodate a relatively small socket, the aim was European patent applications based on constructive solutions. This one Leakage-proof sockets have the same disadvantages as all conventional residual current circuit breakers on the market: yours Failure rate is for a circuit breaker from which possibly the life of Depends on people too big. This issue is discussed in detail in the article by D. Kieback in the magazine ELEKTRIE, Berlin 49 (1995) 4.
Es hat an Versuchen nicht gefehlt diese Problematik in den Griff zu bekommen. So wird z. B. in der OS DE 44 29 950 A1 ein sich halbautomatisch überwachender Fehlerstromschutzschalter, der auch für den Einbau in Steckdosen geeignet ist, beschrieben, der dem Benutzer "an das Drücken der Prüftaste zu denken" dadurch abnimmt, daß er bei dem ersten Ein- und/oder Ausschalten eines ihm nachge ordneten Verbrauchers, mit Hilfe einer elektrischen Einrichtung sofort ausschaltet und erst nach seinem Wiedereinschalten funktionsbereit ist, d. h. bei nicht anliegendem Fehlerstrom nicht ausschaltet.There has been no shortage of attempts to get this problem under control. So z. B. in OS DE 44 29 950 A1 a semi-automatic monitoring Residual current circuit breaker, which is also suitable for installation in sockets, described, which the user "think of pressing the test button" thereby decreases that he followed him the first time he turned on and / or off ordered consumer, switches off immediately with the help of an electrical device and is only operational after it is switched on again, d. H. at not applied fault current does not switch off.
Doch auch diese Erfindung erniedrigt die Ausfallquote nur um den Faktor 20, was z. B. schon in der OKA - Studie der EBI, Gmunden, 1990 gezeigt wurde (s. Anlage).But this invention also lowers the failure rate by a factor of 20 e.g. B. was already shown in the OKA study of the EBI, Gmunden, 1990 (see attachment).
Obwohl dies einen großen Fortschritt darstellt, kann es natürlich trotzdem vorkommen, daß ein Fehlerstromschutzschalter dann nicht auslöst, wenn ein Fehler strom ansteht, d. h. diese halbautomatische Maßnahme verbessert zwar die Zuverlässigkeit und Verfügbarkeit der herkömmlichen fehlerstromgeschützten Steckdosen um ein Vielfaches, doch ein Restrisiko bleibt bestehen.Although this is a major step forward, it can of course still occur that a residual current circuit breaker does not trip when an error current is present, d. H. this semi-automatic measure improves the Reliability and availability of conventional residual current protected Sockets many times over, but a residual risk remains.
Aufgabe der Erfindung ist es, eine fehlerstromgeschützte Steckdose der eingangs beschriebenen Art zu schaffen, die auch noch dieses Restrisiko beseitigt, bzw. dieses Restrisiko noch einmal erheblich vermindert.The object of the invention is to provide a fault-protected socket at the beginning to create the type described, which also eliminates this residual risk, or this residual risk is once again significantly reduced.
Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruchs 1.This object is achieved by the characterizing features of claim 1.
Erfindungsgemäß ist also die fehlerstromgeschützte Steckdose dadurch gekennzeichnet, daß bei Versagen des Fehlerstromschutzschalters bei einem anstehenden Fehlerstrom die Hauptstromleitungen mit Hilfe einer diversitären und/oder redundanten Zusatztrennstelle unterbrochen werden und sich nicht wieder schließen lassen.According to the invention, the fault-current protected socket is thereby characterized in that if the residual current circuit breaker fails at a upcoming fault current the main power lines with the help of a diversified and / or redundant additional disconnection point are interrupted and not again let close.
Das Versagen eines Fehlerstromschutzschalters erkennt man am einfachsten daran, daß die Hauptstromkontakte im Fehlerstromfall nicht, bzw. nicht in der vorgeschrie benen Zeit öffnen. Dies kann man wiederum durch eine Netzspannungsmessung hinter den Hauptstromkontakten feststellen.The easiest way to tell if a residual current circuit breaker has failed is that the main current contacts are not in the fault current case, or not in the prescribed Open the next time. This can be done by measuring the mains voltage behind the main power contacts.
Selbstverständlich kann das Nichtöffnen dieser Kontakte auch mit Hilfe herkömmlicher, bekannter Sensoren erkannt werden. So eignen sich dafür beispiels weise Durchgangs- und/oder Reflexionslichtschranken, Annäherungsschalter, usw.Of course, the non-opening of these contacts can also be done with the help conventional, known sensors can be recognized. So are suitable for example wise through and / or reflection light barriers, proximity switches, etc.
Die Zusatztrennstelle kann sehr unterschiedlich ausgeführt werden:
So kann man eine Minisprengkapsel einsetzen, um irreversibel die Hauptstrom
leitungen zu trennen.
The additional separation point can be designed in very different ways:
So you can use a mini detonator to irreversibly disconnect the main power lines.
Bildet man die Sprengkapsel zweiteilig, elektrisch leitend aus, so trennen sich nach ihrer Zündung ihre beiden Teile irreversibel.If you form the detonator in two parts, electrically conductive, then separate their ignition, their two parts irreversible.
Eine weitere Möglichkeit besteht darin, daß die Zusatztrennstelle aus einem dem Fehlerstromschutzschalter vorgeschalteten Leitungsschutzschalter besteht, dessen Kurzschlußauslöser durch einen im Fehlerstromschutzschalter erzeugten Kurzschluß auslöst, wenn ein Nichtöffnen der Hauptstromkontakte im Fehlerstromfall vorliegt.Another possibility is that the additional separation point from one Residual current circuit breaker upstream circuit breaker exists Short-circuit release generated by one in the residual current circuit breaker Short circuit triggers if the main current contacts do not open in the event of a fault current is present.
Die gleiche Wirkung wird erzielt , wenn man mit Hilfe eines Elektromagneten und einem oder mehreren isolierten Messern im Fehlerstromfall bei Nichtöffnen der Hauptstromkontakte diese einfach durchtrennt.The same effect is achieved when using an electromagnet and one or more insulated knives in the event of a fault current if the Main power contacts simply cut them.
Genau so gut eignen sich Schmelzsicherungen, die analog der oben beschriebenen Vorgehensweise Trenneigenschaften besitzen.Fuses similar to those described above are just as suitable Procedure have separation properties.
Um eine möglichst kostengünstige Lösung der Aufgabe zu erhalten, wird die Zusatztrennstelle, die Netzspannungsüberwachungseinrichtung oder auch die o.g. Sensoren, sowie die Ansteuerungselektronik im Unterteil einer zweiten Steckdose untergebracht.To get the most cost-effective solution to the problem, the Additional disconnection point, the line voltage monitoring device or the above Sensors, as well as the control electronics in the lower part of a second socket housed.
Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, soll die Erfindung näher erläutert werden.Using the drawing, in which an embodiment of the invention is shown, the invention will be explained in more detail.
Es zeigt die einzige Figur eine schematische Darstellung der erfindungsgemäßen, fehlerstromgeschützten Steckdose.The only figure shows a schematic representation of the Residual current protected socket according to the invention.
Darin bedeutet 1 eine herkömmliche, fehlerstromgeschützte Steckdose, die aus den Steckkontakten 2, dem Wandler 3 mit Sekundärwindung 4, dem Auslöser 5, dem Schaltwerk 6 und den Hauptstromkontakten 7 besteht. 1 means a conventional, fault-current protected socket, which consists of the plug contacts 2 , the converter 3 with secondary winding 4 , the trigger 5 , the switching mechanism 6 and the main current contacts 7 .
Wenn im Fehlerstromfall eines der o.g. Bauteile ausfällt und sich dadurch die Hauptstromkontakte nicht öffnen, stellt dies die Überwachungs- und Steuerelektronik 8, in der auch die Stromversorgung enthalten ist, dadurch fest, daß die Netzspannung nicht innerhalb der vorgeschriebenen Zeit gegen Null gegangen ist. Sie gibt daraufhin an die aus einem Antrieb 9 und einer Zusatztrennstelle 10 bestehende Einheit den Befehl, die Hauptstromzuleitungen nichtreversibel zu trennen. Die Zusatztrennstelle 10 kann beispielsweise aus zwei isolierten Messern bestehen, die von dem elektromagnetischen Antrieb 9 im Fehlerstromfall und beim gleichzeitigen Versagen des in der Steckdose 1 eingebauten Fehlerstromschutzschalters, die Hauptstromzuleitungen irreversibel durchtrennen. Die Elektronik 8, der Antrieb 9 und die Zusatztrennstelle 10 sind im vorliegendem Fall in einem zweiten Steckdosenunterteil 11 untergebracht.If one of the above-mentioned components fails in the event of a fault current and the main current contacts do not open as a result, the monitoring and control electronics 8 , which also contains the power supply, determine that the mains voltage has not gone to zero within the prescribed time. It then gives the command to the unit consisting of a drive 9 and an additional disconnection point 10 to separate the main power supply lines in a non-reversible manner. The additional disconnection point 10 can consist, for example, of two insulated knives which irreversibly cut through the main current leads by the electromagnetic drive 9 in the event of a fault current and if the fault current circuit breaker installed in the socket 1 fails at the same time. The electronics 8 , the drive 9 and the additional separation point 10 are accommodated in a second socket part 11 in the present case.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996115047 DE19615047A1 (en) | 1995-08-07 | 1996-04-17 | Socket entrance integrated with fault current circuit breaker in common housing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995128918 DE19528918A1 (en) | 1995-08-07 | 1995-08-07 | Earth leakage circuit breaker with automatic monitoring function - compares measured fault current response threshold and response time with stored values to operate alarm or open main current contacts |
DE1996115047 DE19615047A1 (en) | 1995-08-07 | 1996-04-17 | Socket entrance integrated with fault current circuit breaker in common housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19615047A1 true DE19615047A1 (en) | 1997-10-23 |
Family
ID=26017482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996115047 Withdrawn DE19615047A1 (en) | 1995-08-07 | 1996-04-17 | Socket entrance integrated with fault current circuit breaker in common housing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19615047A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19833984A1 (en) * | 1998-07-10 | 2000-01-13 | Ellenberger & Poensgen | Protection switching device |
DE19838492A1 (en) * | 1998-08-25 | 2000-03-09 | Stahl R Schaltgeraete Gmbh | Explosion-proof connector assembly |
DE19944043A1 (en) * | 1999-09-14 | 2001-03-15 | Siemens Ag | Fault current protection device |
-
1996
- 1996-04-17 DE DE1996115047 patent/DE19615047A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19833984A1 (en) * | 1998-07-10 | 2000-01-13 | Ellenberger & Poensgen | Protection switching device |
DE19838492A1 (en) * | 1998-08-25 | 2000-03-09 | Stahl R Schaltgeraete Gmbh | Explosion-proof connector assembly |
DE19944043A1 (en) * | 1999-09-14 | 2001-03-15 | Siemens Ag | Fault current protection device |
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Legal Events
Date | Code | Title | Description |
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AF | Is addition to no. |
Ref country code: DE Ref document number: 19528918 Format of ref document f/p: P |
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8141 | Disposal/no request for examination |