EP0451481A2 - Test device for earth fault circuit breaker - Google Patents

Test device for earth fault circuit breaker Download PDF

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Publication number
EP0451481A2
EP0451481A2 EP91102914A EP91102914A EP0451481A2 EP 0451481 A2 EP0451481 A2 EP 0451481A2 EP 91102914 A EP91102914 A EP 91102914A EP 91102914 A EP91102914 A EP 91102914A EP 0451481 A2 EP0451481 A2 EP 0451481A2
Authority
EP
European Patent Office
Prior art keywords
contact
test
spring
auxiliary circuit
test button
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.)
Granted
Application number
EP91102914A
Other languages
German (de)
French (fr)
Other versions
EP0451481B1 (en
EP0451481A3 (en
Inventor
Johannes Dipl.-Ing. Becker
Uwe Dipl.-Ing. Bock
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik AG
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Publication of EP0451481A2 publication Critical patent/EP0451481A2/en
Publication of EP0451481A3 publication Critical patent/EP0451481A3/en
Application granted granted Critical
Publication of EP0451481B1 publication Critical patent/EP0451481B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device

Definitions

  • the invention relates to a test device for residual current circuit breakers according to the preamble of claim 1.
  • Such a test device which has become known from DE-PS 26 18 295, is required in the case of residual current circuit breakers in order to test the functional reliability and readiness of the residual current release. This is achieved in that a current path, namely the auxiliary circuit, is closed by pressing the test button via a test resistor from one phase to the other, bypassing the summation current transformer. It is an imitated fault current that triggers the release of the residual current circuit breaker and thus releases the mechanism of the residual current circuit breaker.
  • a residual current circuit breaker which has a test button for closing a test circuit, with the aid of which a mimicked fault current triggering the trigger of the residual current circuit breaker can be switched on, is known from DE-PS 27 33 837.
  • the counter contact piece of the switch for the test circuit is formed by a part of the switch lock, which pivots out of the effective range of a leg of the leg spring when the switch lock is triggered.
  • the invention is based on the object of a test device to develop for residual current circuit breakers of the type described above, which can be combined with a contact position indicator in a small space, and that parts of both the test device and the contact position indicator are designed for both functions.
  • a switching shaft 1 with a movable contact 2 and a fixed contact 3 are used in the lower part of the switch housing 11 .
  • a spiral spring 4 is connected to the control shaft 1 , which protrudes into the upper part of the switch housing 11 .
  • the end of the spiral spring 4 corresponds to a lever 61 of the contact position indicator 6 , which is provided with an axis of rotation 10 .
  • the freedom of movement of the spiral spring 4 is limited by two stops 63 and 64 of the lever 61 .
  • the contact position display device 6 is equipped with a further lever 62 which is divided into two identical sections which are marked with different identification colors. One of the sections of the lever 62 can be seen through an opening 12 of the switch housing 11 .
  • the position of the contact 2 is transmitted via the control shaft 1 , the spiral spring 4 to the contact position display device 6 and made visible to the outside via the lever 62 through the opening 12 of the switch housing 11 .
  • the lever 62 is limited in its rotational movement by stops 8 and 9 .
  • the test device consists of a test button 7 with an extension pin 71 , the length of which is dimensioned such that it contacts a contact spring 5 .
  • the contact spring 5 is designed as a torsion spring with an axis 52 and has a kink 51 in the central region.
  • test device works as follows: When test button 7 is pressed, the test device closes an auxiliary circuit, with which the function of the residual current circuit breaker can be tested. The auxiliary circuit must not be able to be closed when it is switched off.
  • the spiral spring 4 which is electrically conductively connected to the movable contact 2 and fastened in the switching shaft 1 , rotates the contact position indicator 6 about the axis 10 in the counterclockwise direction to the stop 9 .
  • the movable contact 2 moves through the switching shaft 1 in the direction of the fixed contact 3 .
  • the spiral spring 4 rotates the contact position indicator 6 clockwise against the stop 8 .
  • the opening 12 of the switch housing 11 one can see the assigned identification color of the contact position indicator 6 .
  • the auxiliary circuit is closed by pressing the test button 7 .
  • the contact spring 5 touches the spiral spring 4 .

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

2.1 Test devices for earth-fault circuit breakers have the object of closing an auxiliary circuit when a test button is operated, in order to be able to test the operation of the earth-fault circuit breaker. In this case, it must be ensured that the auxiliary circuit cannot be closed in the switched-off state. 2.2 The invention indicates a means by which a test device is combined with an auxiliary circuit and a test button (7) having a contact position display device (6), a switch shaft (1) which is connected to the moving contact (2) additionally being equipped with a bending spring (4) which is used not only as an operating device for the contact position display device (6) but also makes contact with a contact spring (5) of the auxiliary circuit when the contacts (2, 3) are closed. When the contacts (2, 3) are opened, the contact spring (5) cannot make contact with the bending spring (4), so that the auxiliary circuit remains opened even if the test button (7) is operated. 2.3 The test device can be used in all types of earth-fault circuit breakers, but is particularly suitable for earth-fault circuit breakers of narrow construction. <IMAGE>

Description

Die Erfindung betrifft eine Prüfeinrichtung für Fehlerstromschutzschalter gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a test device for residual current circuit breakers according to the preamble of claim 1.

Eine derartige Prüfeinrichtung, die aus der DE-PS 26 18 295 bekannt geworden ist, wird bei Fehlerstromschutzschaltern benötigt, um die Funktionssicherheit und -bereitschaft des Fehlerstromauslösers zu prüfen. Dies wird dadurch erreicht, daß über einen Prüfwiderstand von einer Phase zur anderen, unter Umgehung des Summenstromwandlers, ein Strompfad, nämlich der Hilfsstromkreis, beim Drücken der Prüftaste geschlossen wird. Es handelt sich hierbei um einen nachgeahmten Fehlerstrom, der den Auslöser des Fehlerstromschutzschalters zum Ansprechen bringt und damit den Mechanismus des Fehlerstromschutzschalters entklinkt.Such a test device, which has become known from DE-PS 26 18 295, is required in the case of residual current circuit breakers in order to test the functional reliability and readiness of the residual current release. This is achieved in that a current path, namely the auxiliary circuit, is closed by pressing the test button via a test resistor from one phase to the other, bypassing the summation current transformer. It is an imitated fault current that triggers the release of the residual current circuit breaker and thus releases the mechanism of the residual current circuit breaker.

Ein Fehlerstromschutzschalter, der zum Schließen eines Prüfstromkreises eine Prüftaste aufweist, mit deren Hilfe ein den Auslöser des Fehlerstromschutzschalters zum Ansprechen bringender nachgeahmter Fehlerstrom einschaltbar ist, ist aus der DE-PS 27 33 837 bekannt. Hierbei wird das Gegenkontaktstück des Schalters für den Prüfstromkreis durch ein Teil des Schaltschlosses gebildet, das beim Auslösen des Schaltschlosses aus dem Wirkbereich eines Schenkels der Schenkelfeder heraus schwenkt.A residual current circuit breaker which has a test button for closing a test circuit, with the aid of which a mimicked fault current triggering the trigger of the residual current circuit breaker can be switched on, is known from DE-PS 27 33 837. Here, the counter contact piece of the switch for the test circuit is formed by a part of the switch lock, which pivots out of the effective range of a leg of the leg spring when the switch lock is triggered.

Bei den zuvor genannten Fehlerstromschutzschaltern ist es nicht eindeutig erkennbar, welche Stellung die Hauptkontakte jeweils haben. Aus der Stellung des Einschalthebels läßt sich nur die angenäherte Stellung erkennen.With the aforementioned residual current circuit breakers, it is not clearly recognizable which position the main contacts have in each case. Only the approximate position can be seen from the position of the switch lever.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Prüfeinrichtung für Fehlerstromschutzschalter der zuvor geschilderten Art zu entwickeln, die sich mit einer Kontaktstellungsanzeigevorrichtung auf kleinem Raum kombinieren läßt, und daß Teile sowohl der Prüfeinrichtung als auch der Kontaktstellungsanzeigevorrichtung für beide Funktionen ausgebildet sind.The invention is based on the object of a test device to develop for residual current circuit breakers of the type described above, which can be combined with a contact position indicator in a small space, and that parts of both the test device and the contact position indicator are designed for both functions.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebene Kombination von Merkmalen gelöst.This object is achieved by the combination of features specified in the characterizing part of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß der Aufwand an Teilen für die Funktionen "Hilfsstromkreis" und "Kontaktstellungsanzeige" vermindert werden konnte, womit der Einsatz mit diesen Funktionseinheiten in Fehlerstromschutzschaltern in Schmalbauweise ermöglicht wird. Vorteilhafterweise wird bei der Kombination der Prüfeinrichtung mit einer Kontaktstellungsanzeigevorrichtung eine Biegefeder, welche die Kontaktstellungsanzeigevorrichtung betätigt, gleichzeitig als schaltstellungsabhängiges Kontaktelement genutzt.The advantages achieved by the invention consist in the fact that the expenditure on parts for the functions "auxiliary circuit" and "contact position indicator" could be reduced, which enables the use with these functional units in residual current circuit breakers in a narrow construction. Advantageously, when the test device is combined with a contact position display device, a spiral spring which actuates the contact position display device is simultaneously used as a switch position-dependent contact element.

Vorteilhafte Weiterbildungen des Gegenstandes nach Anspruch 1 sind den Unteransprüchen zu entnehmen.Advantageous developments of the subject matter according to claim 1 can be found in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in Zeichnungen dargestellt und wird im folgenden näher erläutert. Es zeigen

Fig. 1
eine Prüfeinrichtung mit einer Kontaktstellungsanzeigevorrichtung in einem Fehlerstromschutzschalter in Seitenansicht und im Schnitt, Stellung: EIN, Prüftaste: AUS
Fig. 2
einen Teil dieser Kombination in Vorderansicht und im Schnitt in der Stellung wie Fig. 1
Fig. 3
diese Kombination in Stellung: AUS, Prüftaste: AUS
Fig. 4
diese Kombination in Stellung: EIN, Prüftaste: EIN
Fig. 5
diese Kombination in Stellung: AUS, Prüftaste: EIN.
An embodiment of the invention is shown in drawings and is explained in more detail below. Show it
Fig. 1
a test device with a contact position indicator in a residual current circuit breaker in side view and in section, position: ON, test button: OFF
Fig. 2
a part of this combination in front view and in section in the position as Fig. 1st
Fig. 3
this combination in position: OFF, test button: OFF
Fig. 4
this combination in position: ON, test button: ON
Fig. 5
this combination in position: OFF, test button: ON.

Bei dem dargestellten Fehlerstromschutzschalter nach Fig. 1 bis Fig. 5 sind im Unterteil des Schaltergehäuses 11 eine Schaltwelle 1 mit einem beweglichen Kontakt 2 und ein fester Kontakt 3 eingesetzt. Mit der Schaltwelle 1 ist eine Biegefeder 4 verbunden, die bis in das Oberteil des Schaltergehäuses 11 hineinragt. Das Ende der Biegefeder 4 korrespondiert mit einem Hebel 61 der Kontaktstellungsanzeigevorrichtung 6, die mit einer Drehachse 10 versehen ist. Die Bewegungsfreiheit der Biegefeder 4 wird durch zwei Anschläge 63 und 64 des Hebels 61 begrenzt. Dem Hebel 61 gegenüberliegend ist die Kontaktstellungsanzeigevorrichtung 6 mit einem weiteren Hebel 62 ausgestattet, der in zwei gleiche Abschnitte eingeteilt ist, die mit unterschiedlichen Kennfarben markiert sind. Jeweils einer der Abschnitte des Hebels 62 ist durch eine öffnung 12 des Schaltergehäuses 11 zu erkennen. Die Stellung des Kontaktes 2 wird über die Schaltwelle 1, die Biegefeder 4 auf die Kontaktstellungsanzeigevorrichtung 6 übertragen und nach außen hin über den Hebel 62 durch die öffnung 12 des Schaltergehäuses 11 sichtbar gemacht. Der Hebel 62 wird in seiner Drehbewegung durch Anschläge 8 und 9 begrenzt.1 to 5, a switching shaft 1 with a movable contact 2 and a fixed contact 3 are used in the lower part of the switch housing 11 . A spiral spring 4 is connected to the control shaft 1 , which protrudes into the upper part of the switch housing 11 . The end of the spiral spring 4 corresponds to a lever 61 of the contact position indicator 6 , which is provided with an axis of rotation 10 . The freedom of movement of the spiral spring 4 is limited by two stops 63 and 64 of the lever 61 . Opposite the lever 61 , the contact position display device 6 is equipped with a further lever 62 which is divided into two identical sections which are marked with different identification colors. One of the sections of the lever 62 can be seen through an opening 12 of the switch housing 11 . The position of the contact 2 is transmitted via the control shaft 1 , the spiral spring 4 to the contact position display device 6 and made visible to the outside via the lever 62 through the opening 12 of the switch housing 11 . The lever 62 is limited in its rotational movement by stops 8 and 9 .

Die Prüfeinrichtung besteht aus einer Prüftaste 7 mit einem Verlängerungsstift 71, dessen Länge derart bemessen ist, daß er eine Kontaktfeder 5 kontaktiert. Die Kontaktfeder 5 ist als Drehfeder mit einer Achse 52 ausgebildet und weist im mittleren Bereich eine Knickstelle 51 auf.The test device consists of a test button 7 with an extension pin 71 , the length of which is dimensioned such that it contacts a contact spring 5 . The contact spring 5 is designed as a torsion spring with an axis 52 and has a kink 51 in the central region.

Die Wirkungsweise der Prüfeinrichtung ist folgende: Die Prüfeinrichtung schließt bei Betätigung der Prüftaste 7 einen Hilfsstromkreis, womit die Funktion des Fehlerstromschutzschalters geprüft werden kann. Der Hilfsstromkreis darf im ausgeschalteten Zustand nicht geschlossen werden können.The test device works as follows: When test button 7 is pressed, the test device closes an auxiliary circuit, with which the function of the residual current circuit breaker can be tested. The auxiliary circuit must not be able to be closed when it is switched off.

Bei Stellung "EIN" und Prüftaste "AUS" nach Fig. 1 und 2 dreht die Biegefeder 4, welche mit dem beweglichen Kontakt 2 elektrisch leitend verbunden und in der Schaltwelle 1 befestigt ist, die Kontaktstellungsanzeigevorrichtung 6 um die Achse 10 in entgegengesetztem Uhrzeigersinn zum Anschlag 9. Der bewegliche Kontakt 2 bewegt sich durch die Schaltwelle 1 in Richtung des festen Kontaktes 3. Durch die öffnung 12 des Schaltergehäuses 11 erblickt man die zugeordnete Kennfarbe der Kontaktstellungsanzeigevorrichtung 6.In the "ON" position and the "OFF" test button according to FIGS. 1 and 2, the spiral spring 4 , which is electrically conductively connected to the movable contact 2 and fastened in the switching shaft 1 , rotates the contact position indicator 6 about the axis 10 in the counterclockwise direction to the stop 9 . The movable contact 2 moves through the switching shaft 1 in the direction of the fixed contact 3 . Through the opening 12 of the switch housing 11 one can see the assigned identification color of the contact position indicator 6 .

In Stellung "AUS" und Prüftaste "AUS" nach Fig. 3 dreht die Biegefeder 4 die Kontaktstellungsanzeigevorrichtung 6 im Uhrzeigersinn gegen den Anschlag 8. Durch die öffnung 12 des Schaltergehäuses 11 erblickt man die zugeordnete Kennfarbe der Kontaktstellungsanzeigevorrichtung 6.In the "OFF" position and the "OFF" test button according to FIG. 3, the spiral spring 4 rotates the contact position indicator 6 clockwise against the stop 8 . Through the opening 12 of the switch housing 11 one can see the assigned identification color of the contact position indicator 6 .

In Stellung "EIN" und Prüftaste "EIN" nach Fig. 4 wird durch Betätigen der Prüftaste 7 der Hilfsstromkreis geschlossen. Hierbei berührt die Kontaktfeder 5 die Biegefeder 4.In the "ON" position and the "ON" test button according to FIG. 4, the auxiliary circuit is closed by pressing the test button 7 . Here, the contact spring 5 touches the spiral spring 4 .

In Stellung "AUS" und Prüftaste "EIN" nach Fig. 5 ist der bewegliche Kontakt 2 geöffnet. Der Hilfsstromkreis kann in diesem Fall auch bei Betätigung der Prüftaste 7 nicht geschlossen werden.In the "OFF" position and the "ON" test button according to FIG. 5, the movable contact 2 is open. In this case, the auxiliary circuit cannot be closed even when test button 7 is pressed.

Claims (5)

Prüfeinrichtung für Fehlerstromschutzschalter, mit einer Prüftaste, mit einem Hilfsstromkreis zur Überprüfung des Fehlerstromschutzschalters und mit Kontakten, dadurch gekennzeichnet, daß eine Schaltwelle (1) für den beweglichen Kontakt (2) mit einer Biegefeder (4) verbunden ist, deren Ende mit einem Hebel (61) einer um eine Achse (10) drehbaren Kontaktstellungsanzeigevorrichtung (6) korrespondiert, und daß für den Hilfsstromkreis eine um eine Achse (52) schwenkbare Kontaktfeder (5) angeordnet ist, deren Länge derart bemessen ist, daß die Kontaktfeder (5) die Biegefeder (4) bei geschlossenen Kontakten (2, 3) kontaktiert und der Hilfsstromkreis durch Betätigen der Prüftaste (7) schließbar ist, und daß die Kontaktfeder (5) und die Biegefeder (4) bei geöffneten Kontakten (2, 3) und betätigter Prüftaste (7) voneinander getrennt sind.Test device for residual current circuit breakers, with a test button, with an auxiliary circuit for checking the residual current circuit breaker and with contacts, characterized in that a switching shaft (1) for the movable contact (2) is connected to a spiral spring (4) , the end of which is connected to a lever ( 61) corresponds to a contact position indicating device (6) which can be rotated about an axis (10) , and that a contact spring (5) which can be pivoted about an axis (52) and whose length is dimensioned such that the contact spring (5) the spiral spring is arranged for the auxiliary circuit (4) when the contacts (2, 3) are closed and the auxiliary circuit can be closed by pressing the test button (7) , and that the contact spring (5) and the spiral spring ( 4) when the contacts (2, 3) are open and the test button ( 7) are separated from each other. Prüfeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kontaktstellungsanzeigevorrichtung (6) mit einem segmentförmigen Hebel (62) versehen ist, der in zwei Abschnitte eingeteilt ist, die mit unterschiedlichen Kennfarben markiert sind.Testing device according to claim 1, characterized in that the contact position indicating device (6) is provided with a segment-shaped lever (62) which is divided into two sections which are marked with different identification colors. Prüfeinrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß der Hebel (61) der Kontaktstellungsanzeigevorrichtung (6) an der zur Biegefeder (4) gewandten Seite zwei Anschläge (63, 64) aufweist, zwischen denen das Ende der Biegefeder (4) bewegbar ist.Test device according to one of claims 1 to 2, characterized in that the lever (61) of the contact position indicating device (6) has two stops (63, 64) on the side facing the spiral spring (4) , between which the end of the spiral spring (4) is movable. Prüfeinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der segmentförmige Hebel (62) der Kontaktstellungsanzeigevorrichtung (6) in seiner Bewegungsfreiheit von zwei Anschlägen (8, 9) begrenzt ist, deren Abstände voneinander derart bemessen sind, daß jeweils einer der durch Kennfarben gekennzeichneten Abschnitte in einer öffnung (12) des Gehäuses (11) für den Fehlerstromschutzschalter sichtbar ist.Test device according to one of Claims 1 to 3, characterized in that the freedom of movement of the segment-shaped lever (62) of the contact position indicator device (6) is limited by two stops (8, 9) , the distances between which are dimensioned in such a way that one of the stops Identification colors marked Sections in an opening (12) of the housing (11) for the residual current circuit breaker is visible. Prüfeinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kontaktfeder (5) als Drehfeder ausgebildet ist, deren freies Ende abgeknickt ist, und daß ein Verlängerungsstift (71) der Prüftaste (7) im Bereich der Knickstelle (51) eingreift.Test device according to one of claims 1 to 4, characterized in that the contact spring (5) is designed as a torsion spring, the free end of which is kinked, and that an extension pin ( 71) of the test button (7) engages in the region of the kink (51) .
EP91102914A 1990-04-11 1991-02-28 Test device for earth fault circuit breaker Expired - Lifetime EP0451481B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4011680 1990-04-11
DE9004196U DE9004196U1 (en) 1990-04-11 1990-04-11 Test device for residual current circuit breakers
DE4011680A DE4011680A1 (en) 1990-04-11 1990-04-11 TEST DEVICE FOR CURRENT CIRCUIT BREAKERS

Publications (3)

Publication Number Publication Date
EP0451481A2 true EP0451481A2 (en) 1991-10-16
EP0451481A3 EP0451481A3 (en) 1992-09-09
EP0451481B1 EP0451481B1 (en) 1994-09-21

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EP91102914A Expired - Lifetime EP0451481B1 (en) 1990-04-11 1991-02-28 Test device for earth fault circuit breaker

Country Status (7)

Country Link
EP (1) EP0451481B1 (en)
JP (1) JPH04230930A (en)
CN (1) CN1021167C (en)
AT (1) ATE112093T1 (en)
AU (1) AU633426B2 (en)
DE (3) DE9004196U1 (en)
ES (1) ES2060220T3 (en)

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EP0565008A1 (en) * 1992-04-09 1993-10-13 ABBPATENT GmbH Test button device for an earth fault circuit breaker or a differential current circuit breaker
WO1996020525A1 (en) * 1994-12-23 1996-07-04 Felten & Guilleaume Austria Ag Electrical circuit breaker
EP1492140A1 (en) * 2003-06-27 2004-12-29 Siemens Aktiengesellschaft Cricuit breaker with test button
EP1826795A1 (en) * 2006-02-24 2007-08-29 ABB France Device for protecting against overvoltage with simplified display system and corresponding manufacturing method
ITMI20081828A1 (en) * 2008-10-15 2010-04-16 Abb Spa LOW VOLTAGE SWITCH WITH CONTACT STATUS INDICATOR.

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DE4306231C2 (en) * 1993-02-27 1996-02-29 Abb Patent Gmbh Contact arrangement for a residual current circuit breaker
DE4420767C2 (en) 1994-06-15 2002-07-11 Abb Patent Gmbh Test key arrangement
DE19513029A1 (en) * 1995-04-06 1996-10-10 Siemens Ag Error current protection switch with testing arrangement
ES2157161B1 (en) * 1999-07-15 2002-02-16 Power Controls Iberica Sl TRIGGER MECHANISM FOR AUTOMATIC SWITCHES.
DE10220622B4 (en) * 2002-05-08 2004-09-09 Siemens Ag Residual-current device
DE102006056395A1 (en) * 2006-11-29 2008-06-05 Siemens Ag Residual current circuit breaker or residual current device
CN102818988B (en) * 2012-01-21 2016-01-20 三信国际电器上海有限公司 The test device system of earth-fault current or residual current circuit breaker
CN104471667B (en) * 2012-05-02 2017-03-08 西门子公司 Apparatus and method for active circuit circuit breaker accessory
CN116504556A (en) * 2022-01-21 2023-07-28 浙江正泰电器股份有限公司 Test button loop device and circuit breaker
CN115902501B (en) * 2023-02-28 2023-06-16 山东中兴科技开发有限公司 Test equipment for distribution box

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Publication number Priority date Publication date Assignee Title
FR2437692A1 (en) * 1978-09-28 1980-04-25 Merlin Gerin Manually operated circuit breaker with overload cut=out - has earth fault current overload device and reset units as separate components which may be put together later
EP0231732A2 (en) * 1985-12-02 1987-08-12 Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft Circuit breaker for fault and conduction current protection

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565008A1 (en) * 1992-04-09 1993-10-13 ABBPATENT GmbH Test button device for an earth fault circuit breaker or a differential current circuit breaker
WO1996020525A1 (en) * 1994-12-23 1996-07-04 Felten & Guilleaume Austria Ag Electrical circuit breaker
AU695586B2 (en) * 1994-12-23 1998-08-20 Felten & Guilleaume Austria Ag Electrical circuit breaker
EP1492140A1 (en) * 2003-06-27 2004-12-29 Siemens Aktiengesellschaft Cricuit breaker with test button
EP1826795A1 (en) * 2006-02-24 2007-08-29 ABB France Device for protecting against overvoltage with simplified display system and corresponding manufacturing method
FR2897989A1 (en) * 2006-02-24 2007-08-31 Soule Prot Surtensions Sa OVERVOLTAGE PROTECTION DEVICE WITH SIMPLIFIED VISUALIZATION SYSTEM AND METHOD OF MANUFACTURING THE SAME
US7738231B2 (en) 2006-02-24 2010-06-15 Abb France Overvoltage protection device with simplified display system and corresponding production method
ITMI20081828A1 (en) * 2008-10-15 2010-04-16 Abb Spa LOW VOLTAGE SWITCH WITH CONTACT STATUS INDICATOR.
WO2010043489A1 (en) * 2008-10-15 2010-04-22 Abb S.P.A. Low voltage circuit breaker with contact status indicator.
RU2505880C2 (en) * 2008-10-15 2014-01-27 АББ С.п.А. Low-voltage switch with contact state indicator

Also Published As

Publication number Publication date
AU633426B2 (en) 1993-01-28
DE9004196U1 (en) 1990-06-13
JPH04230930A (en) 1992-08-19
EP0451481B1 (en) 1994-09-21
DE59102992D1 (en) 1994-10-27
DE4011680A1 (en) 1991-10-17
EP0451481A3 (en) 1992-09-09
ATE112093T1 (en) 1994-10-15
AU7611591A (en) 1992-01-09
ES2060220T3 (en) 1994-11-16
CN1021167C (en) 1993-06-09
CN1056372A (en) 1991-11-20

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