DE19723130A1 - Leakage current display arrangement for electrical conductors in house - Google Patents

Leakage current display arrangement for electrical conductors in house

Info

Publication number
DE19723130A1
DE19723130A1 DE19723130A DE19723130A DE19723130A1 DE 19723130 A1 DE19723130 A1 DE 19723130A1 DE 19723130 A DE19723130 A DE 19723130A DE 19723130 A DE19723130 A DE 19723130A DE 19723130 A1 DE19723130 A1 DE 19723130A1
Authority
DE
Germany
Prior art keywords
current
optical display
secondary winding
acoustic
display
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Withdrawn
Application number
DE19723130A
Other languages
German (de)
Inventor
Volker Schneebeck
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.)
Condor Werk Gebr Frede GmbH and Co KG
Original Assignee
Condor Werk Gebr Frede GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Condor Werk Gebr Frede GmbH and Co KG filed Critical Condor Werk Gebr Frede GmbH and Co KG
Priority to DE19723130A priority Critical patent/DE19723130A1/en
Publication of DE19723130A1 publication Critical patent/DE19723130A1/en
Withdrawn legal-status Critical Current

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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/38—Instruments transformers for polyphase ac
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • 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
    • H02H3/44—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 the rate of change of electrical quantities

Abstract

The arrangement includes an accumulating mains transformer (2) which is in active connection with a primary conductor (1) and to which a secondary winding (3) is provided. An evaluation unit (4) is connected to the secondary winding and an acoustic or optical display (5,6) is connected to the evaluation unit. Preferably, the secondary winding is provided to the accumulating mains converter of a circuit breaker. The optical display (6) includes LEDs (8) which light up dependent on the leakage current intensity.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur Anzeige eines Fehlerstromes.The present invention relates to a device for displaying a fault current.

Um eine Überlastung der elektrischen Leitungen in einem Stromkreis beispielsweise eines Hauses, verursacht durch auftretende Fehlerströme zu verhindern, ist es be­ kannt, Fehlerstromschutzschalter einzusetzen, die bei Erreichen eines bestimmten Fehlerstromgrenzwertes den Stromkreislauf unterbrechen.To overload the electrical lines in a circuit, for example to prevent a house caused by fault currents from occurring knows to use residual current circuit breakers, which when a certain Residual current limit interrupt the circuit.

Probleme ergeben sich allerdings für den Fall, daß eine Beaufsichtigung des Fehler­ stromschutzschalters, beispielsweise bei längerer Abwesenheit, nicht möglich ist.Problems arise, however, in the event that supervision of the error circuit breaker, for example in the event of a long absence, is not possible.

In diesem Fall werden bei Unterbrechung des Stromkreises auch auf Dauerstromzu­ fuhr angewiesene Geräte wie Kühl- oder Gefrierschränke, Pumpen oder Heizungs­ anlagen abgeschaltet, wodurch ein erheblicher Schaden entstehen kann.In this case, if the circuit is interrupted, continuous current will be added drove instructed devices such as refrigerators or freezers, pumps or heating systems switched off, which can cause considerable damage.

Bislang ist es nicht möglich, ein Ansteigen der üblicherweise stets fließenden Fehler­ ströme festzustellen, um so rechtzeitig reagieren zu können.So far, it has not been possible to increase the errors that are usually always flowing determine currents in order to be able to react in time.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur Anzeige eines Fehlerstromes zu entwickeln, mit der eine Veränderung des Fehler­ stromes feststellbar ist.The present invention is therefore based on the object of a device for Develop a fault current display, with a change in the fault current can be determined.

Diese Aufgabe wird durch eine Vorrichtung gelöst, die die Merkmale des Anspruchs 1 aufweist.This object is achieved by a device which has the features of claim 1 having.

Mit Hilfe einer solcherart ausgebildeten Vorrichtung ist sofort erkennbar, ob eine Fehlerstromzunahme vorliegt die bei Nichtbeachtung zu einer Abschaltung des Fehlerstromschutzschalters führen würde.With the help of a device designed in this way, it can be immediately recognized whether a Residual current increase is due to failure to switch off the Residual current circuit breaker would lead.

Nach einer vorteilhaften Ausgestaltung der Erfindung weist die optische Anzeige Leuchtdioden in Form einer Diodenreihe, ein Leuchtband oder einen Zeiger auf, wo­ bei anhand der Stellung des Zeigers oder des Leuchtbandes bzw. anhand der Anzahl der aufleuchtenden Dioden ein Ansteigen des Fehlerstromes erkennbar ist.According to an advantageous embodiment of the invention, the optical display Light emitting diodes in the form of a row of diodes, a light strip or a pointer to where based on the position of the pointer or the light strip or on the basis of the number of the light-emitting diodes an increase in the fault current is recognizable.

Aufgrund solcher Beobachtungen ist es dann möglich, rechtzeitig Präventivmaßnah­ men zu ergreifen, beispielsweise die Ursache des Fehlerstromanstieges zu ergrün­ den und zu beseitigen.Based on such observations, it is then possible to take preventive measures in good time to take action, for example greening the cause of the residual current surge the and to eliminate.

In jedem Fall ist ein wesentlich sicherer Betrieb gegeben.In any case, the operation is much safer.

Unterstützend bei der Feststellung einer Fehlerstromzunahme bzw. bei der Erkennung eines oberen Maximalgrenzwertes kann ein akustischer Signalgeber sein, der in diesem Fall ausgelöst wird.Supporting the detection of a leakage current increase or the Detection of an upper maximum limit value can be an acoustic signal generator, which is triggered in this case.

Zweckmäßig ist es, diesen akustischen Signalgeber mit einer Quittiertaste zu verse­ hen, durch die der Signalgeber abgeschaltet werden kann.It is useful to verse this acoustic signal generator with an acknowledgment button hen by which the signal generator can be switched off.

Weiter besteht die Möglichkeit, die Vorrichtung als separates Teil auszubilden und an den Primärleiter anzuschließen, wobei eine solche Vorrichtung sowohl für Wechsel­ strom als auch für Drehstrom geeignet ist.There is also the possibility of designing the device as a separate part and on to connect the primary conductor, such a device for both change current as well as three-phase is suitable.

Dabei ist es unerheblich, ob ein Fehlerstromschutzschalter angeschlossen ist.It is irrelevant whether an earth leakage circuit breaker is connected.

Der Vorteil bei einer Ausbildung der Vorrichtung als separates Bauteil liegt darin, daß vorhandene Leitungen nachgerüstet werden können.The advantage of designing the device as a separate component is that existing lines can be retrofitted.

Denkbar ist aber auch, die Vorrichtung mit in einen Filterstromschutzschalter zu inte­ grieren, so daß ein solcherart ausgebildeter Fehlerstromschutzschalter als Komplett­ system vorzugsweise bei einer Neuinstallierung Verwendung findet. It is also conceivable to integrate the device into a filter current circuit breaker grieren so that such a trained residual current circuit breaker as a complete system is preferably used for a new installation.  

Hierbei kann der in jedem Fehlerstromschutzschalter vorgesehene Summenstrom­ wandler auch Bestandteil der Vorrichtung sein, wobei dann die Sekundärwicklung an diesen Summenstromwandler gelegt wird.Here, the total current provided in each residual current circuit breaker can converter also be part of the device, in which case the secondary winding this sum current transformer is placed.

Naturgemäß ergeben sich hieraus Vorteile hinsichtlich der Fertigungs- und Montage­ kosten.This naturally results in advantages with regard to manufacturing and assembly costs.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen ge­ kennzeichnet.Further advantageous embodiments of the invention are set out in the subclaims indicates.

Ein Ausführungsbeispiel wird nachfolgend anhand der beigefügten Zeichnung be­ schrieben.An embodiment will be described below with reference to the accompanying drawings wrote.

Die einzige Figur zeigt eine erfindungsgemäße Vorrichtung in einer schematischen Darstellung.The single figure shows a device according to the invention in a schematic Presentation.

In der Figur ist eine Vorrichtung zur Anzeige eines Fehlerstromes gezeigt, die in ihrem Grundaufbau aus einem Summenstromwandler 2 besteht, der in Wirkverbin­ dung mir einem Primärleiter 1 steht. Dieser besteht in dem Ausführungsbeispiel aus den Stromleitern L1, L2, L3 und dem Neutralleiter N.In the figure, a device for displaying a fault current is shown, the basic structure of which consists of a summation current transformer 2 , which is in active connection with a primary conductor 1 . In the exemplary embodiment, this consists of the current conductors L1, L2, L3 and the neutral conductor N.

An den Summenstromwandler 2 ist eine Sekundärwicklung 3 angelegt die an eine Auswerteeinrichtung 4 angeschlossen ist.A secondary winding 3 is connected to the summation current transformer 2 and is connected to an evaluation device 4 .

Über eine Stromversorgung 7, die mit dem Primärleiter 1 verbunden ist, wird die Auswerteeinrichtung 4 mit dem zum Betrieb notwendigen Strom versorgt.The evaluation device 4 is supplied with the current required for operation via a power supply 7 , which is connected to the primary conductor 1 .

An die Auswerteeinrichtung 4, mit der Veränderungen auftretender Fehlerströme er­ mittelbar sind, ist eine optische Anzeige 6 und beispielsweise eine akustische Signalanzeige 5 angeschlossen.An optical display 6 and, for example, an acoustic signal display 5 are connected to the evaluation device 4 with which changes in the fault currents that occur are indirect.

Die optische Anzeige 6 weist mehrere, in Reihe liegende Leuchtdioden 8 auf, die je nach Zunahme des Fehlerstromes zugeschaltet werden.The optical display 6 has a plurality of light-emitting diodes 8 which are arranged in series and are switched on depending on the increase in the fault current.

Hierdurch ist eine Veränderung des Fehlerstromes, insbesondere die Zunahme er­ kennbar.This is a change in the fault current, in particular the increase recognizable.

Bei Überschreiten eines vorgegebenen maximalen Wertes wird durch die akustische Anzeige 5 ein Signal ausgelöst, das auf die Überschreitung des Grenzwertes hin­ weist, so daß entsprechende Maßnahmen zur Fehlerbehebung eingeleitet werden können. When a predetermined maximum value is exceeded, a signal is triggered by the acoustic display 5 , which indicates that the limit value has been exceeded, so that appropriate measures can be taken to remedy the fault.

Mittels einer nicht dargestellten Quittiertaste, die entweder an der Auswerteeinrich­ tung 4 oder an der akustischen Anzeige 5 angeschlossen ist, kann das Signal ausge­ schaltet werden. The signal can be switched off by means of an acknowledgment button, not shown, which is connected either to the evaluation device 4 or to the acoustic display 5 .

BezugszeichenlisteReference list

11

Primärleiter
Primary conductor

22nd

Summenstromwandler
Total current transformer

33rd

Sekundärwicklung
Secondary winding

44th

Auswerteeinrichtung
Evaluation device

55

akustische Signalanzeige
acoustic signal display

66

optische Anzeige
optical display

77

Stromversorgung
Power supply

88th

Leuchtdioden
LEDs

Claims (8)

1. Vorrichtung zur Anzeige eines Fehlerstromes, dadurch gekennzeichnet, daß an einen mit einem Primärleiter (1) in Wirkverbindung stehenden Summen­ stromwandler (2) eine Sekundärwicklung (3) angelegt ist, an die eine Auswer­ teeinrichtung (4) angeschlossen ist, mit der eine akustische und/oder optische Anzeige (5, 6) verbunden ist.1. A device for displaying a fault current, characterized in that a secondary winding ( 3 ) is connected to a current transformer ( 2 ) that is in active connection with a primary conductor ( 1 ), to which an evaluation device ( 4 ) is connected, with which one acoustic and / or optical display ( 5 , 6 ) is connected. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sekundär­ wicklung (3) an den Summenstromwandler (2) eines Fehlerstromschutzschal­ ters angelegt ist.2. Device according to claim 1, characterized in that the secondary winding ( 3 ) to the summation current transformer ( 2 ) of a residual current circuit breaker is applied. 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die optische Anzeige (6) Leuchtdioden (8) aufweist, die je nach Fehlerstromstärke nach­ einander aufleuchten.3. Apparatus according to claim 1, characterized in that the optical display ( 6 ) has light emitting diodes ( 8 ) which light up one after the other depending on the fault current. 4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die optische Anzeige ein Leuchtband aufweist.4. The device according to claim 1, characterized in that the optical Display has a light strip. 5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die optische Anzeige mit einem den Fehlerstrom anzeigenden Anzeiger versehen ist.5. The device according to claim 1, characterized in that the optical Display is provided with an indicator indicating the fault current. 6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die akustische Anzeige (5) bei Erreichen eines vorbestimmten Fehlerstromgrenzwertes aus­ gelöst wird. 6. The device according to claim 1, characterized in that the acoustic display ( 5 ) is triggered when a predetermined residual current limit value is reached. 7. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, daß die Auswerteeinrichtung (4) oder die akustische Anzeige (5) mit einer Quittiertaste versehen ist, mit der ein Signalton abschaltbar ist.7. The device according to claim 1 or 6, characterized in that the evaluation device ( 4 ) or the acoustic display ( 5 ) is provided with an acknowledgment button with which a signal tone can be switched off. 8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß an die Aus­ werteeinrichtung (4) eine Stromversorgung (7) angeschlossen ist, die mit dem Primärleiter (1) verbunden ist.8. The device according to claim 1, characterized in that a power supply ( 7 ) is connected to the evaluation device ( 4 ), which is connected to the primary conductor ( 1 ).
DE19723130A 1997-06-03 1997-06-03 Leakage current display arrangement for electrical conductors in house Withdrawn DE19723130A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19723130A DE19723130A1 (en) 1997-06-03 1997-06-03 Leakage current display arrangement for electrical conductors in house

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19723130A DE19723130A1 (en) 1997-06-03 1997-06-03 Leakage current display arrangement for electrical conductors in house

Publications (1)

Publication Number Publication Date
DE19723130A1 true DE19723130A1 (en) 1999-01-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19723130A Withdrawn DE19723130A1 (en) 1997-06-03 1997-06-03 Leakage current display arrangement for electrical conductors in house

Country Status (1)

Country Link
DE (1) DE19723130A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026805A2 (en) * 1999-02-04 2000-08-09 ABBPATENT GmbH Earth leakage protective circuit
DE102004024100A1 (en) * 2004-05-14 2005-12-15 Siemens Ag Test device for earth leakage circuit breaker, functions with test voltage differing from supply voltage of supply network
DE102010032031A1 (en) * 2010-07-21 2012-01-26 Siemens Aktiengesellschaft Low voltage power switch for electrical switchgear, has armature that is wound around aperture of iron core for conduction of test current which corresponds to differential current based on output of magnetic sensor of transformer
US8390465B2 (en) 2008-06-18 2013-03-05 Moeller Gebaudeautomation Gmbh Residual-current circuit breaker
US8692680B2 (en) 2008-06-18 2014-04-08 Moeller Geräudeautomation GmbH Residual-current circuit breaker
CN105242168A (en) * 2015-10-29 2016-01-13 国网浙江省电力公司绍兴供电公司 Split type leakage current acquisition system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026805A2 (en) * 1999-02-04 2000-08-09 ABBPATENT GmbH Earth leakage protective circuit
DE19904405A1 (en) * 1999-02-04 2000-08-10 Abb Patent Gmbh Residual current protection circuit arrangement
EP1026805A3 (en) * 1999-02-04 2003-01-15 ABB PATENT GmbH Earth leakage protective circuit
DE102004024100A1 (en) * 2004-05-14 2005-12-15 Siemens Ag Test device for earth leakage circuit breaker, functions with test voltage differing from supply voltage of supply network
US8390465B2 (en) 2008-06-18 2013-03-05 Moeller Gebaudeautomation Gmbh Residual-current circuit breaker
US8692680B2 (en) 2008-06-18 2014-04-08 Moeller Geräudeautomation GmbH Residual-current circuit breaker
EP2291893B1 (en) * 2008-06-18 2017-02-08 Eaton Industries (Austria) GmbH Fault current circuit breaker
DE102010032031A1 (en) * 2010-07-21 2012-01-26 Siemens Aktiengesellschaft Low voltage power switch for electrical switchgear, has armature that is wound around aperture of iron core for conduction of test current which corresponds to differential current based on output of magnetic sensor of transformer
CN105242168A (en) * 2015-10-29 2016-01-13 国网浙江省电力公司绍兴供电公司 Split type leakage current acquisition system

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