EP0271669B1 - Mechanism for an earth fault current circuit breaker combined with a line circuit breaker - Google Patents

Mechanism for an earth fault current circuit breaker combined with a line circuit breaker Download PDF

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Publication number
EP0271669B1
EP0271669B1 EP87115460A EP87115460A EP0271669B1 EP 0271669 B1 EP0271669 B1 EP 0271669B1 EP 87115460 A EP87115460 A EP 87115460A EP 87115460 A EP87115460 A EP 87115460A EP 0271669 B1 EP0271669 B1 EP 0271669B1
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EP
European Patent Office
Prior art keywords
circuit breaker
arm
line circuit
fault current
earth fault
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87115460A
Other languages
German (de)
French (fr)
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EP0271669A3 (en
EP0271669A2 (en
Inventor
Gerriet Müller
Martin Beck
Wilhelm Wessling
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
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Felten and Guilleaume Energietechnik AG
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Publication of EP0271669A2 publication Critical patent/EP0271669A2/en
Publication of EP0271669A3 publication Critical patent/EP0271669A3/en
Application granted granted Critical
Publication of EP0271669B1 publication Critical patent/EP0271669B1/en
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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
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1072—Release mechanisms which are reset by opening movement of contacts

Definitions

  • the invention relates to a mechanism for a residual current circuit breaker combined with a line circuit breaker according to the preamble of claim 1.
  • a mechanism for a residual current release combined with a circuit breaker which has a manual control toggle separate from the circuit breaker, a trigger relay that can be reset by a mechanism part and an on the latching of the circuit breaker acting transmission member (DE-OS 31 07 687).
  • the reduction in the number of individual parts leads to quite complicated and complex components, which particularly includes the ratchet lever, since this corresponds to at least 3 other components and has a ratchet nose equipped with a steel ball.
  • the recordings of the double-curved coupling bracket which serves as a connecting link between the residual current release and the adjacent circuit breaker, must be carried out very carefully, otherwise there is a risk of jamming.
  • the invention is therefore based on the object of providing a mechanism for a residual current circuit breaker of the type described above combined with a circuit breaker with the aim of using as few and uncomplicated components as possible and with a minimum of latching points.
  • a particularly advantageous embodiment of the object according to claim 1 can be seen in the return plate, which is not only responsible for the resetting of the triggering device, but also carries a reset bracket, which is indirectly responsible for triggering the circuit breaker.
  • a spring against the pressure of which the return plate can be moved, plays a decisive role.
  • FIG. 1 An embodiment of the invention is shown in a drawing and is explained in more detail below.
  • the figure shows a residual current circuit breaker in side view, with the side wall removed.
  • the mechanism of the residual current circuit breaker is accommodated in a housing 1, the visible side wall 2 of which adjoins an adjacent circuit breaker (not shown).
  • a slot 3 which is provided for a transmission element from the residual current circuit breaker to the adjacent circuit breaker.
  • a triggering device 4 is provided for triggering the residual current circuit breaker, which converts the electrical energy into mechanical energy.
  • the release device has an actuating element 5, which acts on a release plate 6 in the event of a release.
  • This release plate is approximately L-shaped in cross section, its longer leg 7 corresponds to a release lever 13 and the shorter leg 8 is bent at the end such that a small piece of this leg runs parallel to the longer leg and thus a stop 9 for the actuator 5 forms.
  • the release plate In the middle of the longer leg, the release plate has an angled tab 10 with a bore, which allows the release plate to be plugged onto a shaft 11 fixed to the housing.
  • the trigger plate is under the action of a torsion spring 14.
  • a return plate 15 has a tubular part 16 at the end, which encloses an axis 17 fixed to the housing. In the middle area, the return plate has an angled tab 18 with a bore, which serves to receive a reset bracket 21. At the free end, the return plate is angled in such a way that, when the residual current circuit breaker is switched on, it is approximately perpendicular to the trip plate 6 below the pivot point. The movement of the return plate takes place against the action of a conical spring 20.
  • the reset bracket 21 is bent at its free end in a circle and encloses a cylindrical pin 22.
  • a switch-off bracket 25 for the adjacent circuit breaker and an intermediate member 26 are connected to this cylindrical pin.
  • the cylindrical pin slides in one on both sides Switching gate 24, which is formed on the one hand by the rear wall 2 and on the other hand by an intermediate plate 30 (not shown).
  • the movement of the cylindrical pin takes place when it is switched on against the action of a torsion spring 23, which at the same time carries the tripping current when the test button is pressed.
  • the intermediate link is connected via a bracket 28 to the switch lever 29 of the residual current circuit breaker.
  • a latching lever 27 is also connected to the intermediate member and forms the latching point with the release lever 13, which is under the action of a torsion spring 14.
  • the adjacent circuit breaker Since the residual current circuit breaker has no switch contacts, the adjacent circuit breaker must take over the switching of the contacts, i.e. both switches must be turned on.
  • the circuit breaker can also be used up to a four-pole version.
  • the simultaneous switching on and off of a multiple combination by hand takes place by means of mutually coupled switch levers. When switching off in the event of a fault, all miniature circuit breakers trip simultaneously, since the release levers of all miniature circuit breakers are in operative connection with one another.
  • the triggering device 4 is acted on in such a way that the actuating member 5 steps outward and the triggering plate 6 moves clockwise.
  • the end of the longer leg 7 thus acts on the release lever 13 of the residual current circuit breaker, with the result that the latching point between the latching lever 27 and the release lever 13 is removed.
  • the cylindrical pin 22 can thus slide in the switching link 24 in the direction of the release lever 13, whereby the switch-off bracket for the circuit breaker simultaneously removes the latching point in the adjacent circuit breaker and opens the switching contacts.
  • the reset bracket 21 is actuated with this process, so that the return plate 15 rotates the release plate 6 counterclockwise and thus resets the release device 4 via the actuator 5.

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  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

Die Erfindung betrifft einen Mechanismus für einen mit einem Leitungsschutzschalter kombinierten Fehlerstromschutzschalter gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a mechanism for a residual current circuit breaker combined with a line circuit breaker according to the preamble of claim 1.

Ein derartiger Mechanismus ist bereits bekannt (DE-PS 29 04 211). Bei diesem Mechanismus sind konstruktive Maßnahmen vorgesehen, die die Wiedereinschaltung des auf einen Fehlerstrom ansprechenden Auslöserelais mit großer, jedoch sehr weich einzuleitender Kraft bewirken, so daß ein Zerschlagen der empfindlichen Polflächen des meist nach dem Kraftprinzip arbeitenden Auslöserelais vermieden wird. Hierzu wirken zunächst zwei Federn nach dem Entklinken des Auslösemechanismus auf den Verschwenkvorgang des Schalthebels, der dadurch mit großer Kraft das Übertragungsglied, das die Mechanismen der Leitungsschutzschalter betätigt, ansteuern kann. Erst nach anfänglichem Verschwenken des Schalthebels erfolgt die Mitnahme des Klinkenhebels und damit das selbsttätige Wiedereinschalten des Auslöserelais. Zum Erreichen des gesteckten Ziels sind allerdings zahlreiche Bauteile und drei Verklinkungsstellen erforderlich.Such a mechanism is already known (DE-PS 29 04 211). In this mechanism, constructive measures are provided which cause the trigger relay responding to a fault current to be switched on again with a large but very soft force, so that the sensitive pole faces of the trigger relay, which usually works on the force principle, are avoided. For this purpose, two springs initially act on the pivoting process of the switching lever after the release mechanism has been released, which can thereby actuate the transmission element which actuates the mechanisms of the circuit breaker with great force. Only after the switching lever has been pivoted initially, the ratchet lever is taken along and thus the trigger relay is automatically switched on again. However, numerous components and three latching points are required to achieve the set goal.

Es ist auch ein Mechanismus für einen mit einem Leitungsschutzschalter kombinierten Fehlerstromauslöser bekannt, der einen vom Leitungsschutzschalter getrennten Handbedienungsknebel, ein von einem Mechanismusteil rückstellbares Auslöserelais und ein auf die Verklinkung des Leitungsschutzschalters einwirkendes Übertragungsglied aufweist (DE-OS 31 07 687). Die Verringerung der Einzelteile führt allerdings zu recht komplizierten und aufwendigen Bauelementen, wozu besonders der Klinkenhebel zählt, da dieser mit wenigstens 3 anderen Bauelementen korrespondiert und eine mit einer Stahlkugel bestückte Klinkennase besitzt. Auch müssen die Aufnahmen des zweifach gebogenen Kupplungsbügels, der als Verbindungsglied zwischen dem Fehlerstromauslöser und dem benachbarten Leitungsschutzschalter dient, sehr sorgfältig ausgeführt werden, da sonst die Gefahr des Verkantens besteht.A mechanism for a residual current release combined with a circuit breaker is also known, which has a manual control toggle separate from the circuit breaker, a trigger relay that can be reset by a mechanism part and an on the latching of the circuit breaker acting transmission member (DE-OS 31 07 687). The reduction in the number of individual parts, however, leads to quite complicated and complex components, which particularly includes the ratchet lever, since this corresponds to at least 3 other components and has a ratchet nose equipped with a steel ball. Also, the recordings of the double-curved coupling bracket, which serves as a connecting link between the residual current release and the adjacent circuit breaker, must be carried out very carefully, otherwise there is a risk of jamming.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Mechanismus für einen mit einem Leitungsschutzschalter kombinierten Fehlerstromschutzschalter der zuvor geschilderten Art mit dem Ziel zu schaffen, mit möglichst wenigen und unkomplizierten Bauteilen und mit einem Minimum an Verklinkungsstellen auszukommen.The invention is therefore based on the object of providing a mechanism for a residual current circuit breaker of the type described above combined with a circuit breaker with the aim of using as few and uncomplicated components as possible and with a minimum of latching points.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen konstruktiven Maßnahmen gelöst.This object is achieved by the constructive measures specified in the characterizing part of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen unter Aufrechterhaltung der Sicherheit und der Zuverlässigkeit in einem wesentlich vereinfachten Herstellungsverfahren.The advantages achieved with the invention consist in maintaining the safety and reliability in a substantially simplified manufacturing process.

Eine besonders vorteilhafte Ausgestaltung des Gegenstandes nach Anspruch 1 ist im Rückführungsblech zu sehen, das nicht nur für die Rückstellung der Auslöseeinrichtung verantwortlich ist, sondern auch einen Rückstellbügel trägt, der indirekt für die Auslösung des Leitungsschutzschalters zuständig ist. Hierbei spielt eine Feder, gegen deren Druck das Rückführungsblech bewegbar ist, eine entscheidende Rolle.A particularly advantageous embodiment of the object according to claim 1 can be seen in the return plate, which is not only responsible for the resetting of the triggering device, but also carries a reset bracket, which is indirectly responsible for triggering the circuit breaker. Here a spring, against the pressure of which the return plate can be moved, plays a decisive role.

Ein Ausführungsbeispiel der Erfindung ist in einer Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigt die Figur einen Fehlerstromschutzschalter in Seitenansicht, bei abgenommener Seitenwand.An embodiment of the invention is shown in a drawing and is explained in more detail below. The figure shows a residual current circuit breaker in side view, with the side wall removed.

Nach der Figur ist der Mechanismus des Fehlerstromschutzschalters in einem Gehäuse 1 untergebracht, dessen sichtbare Seitenwand 2 an einen benachbarten Leitungsschutzschalter (nicht dargestellt) grenzt. In dieser Seitenwand befindet sich ein Schlitz 3, der für ein Übertragungsglied vom Fehlerstromschutzschalter zum benachbarten Leitungsschutzschalter vorgesehen ist. Für die Auslösung des Fehlerstromschutzschalters ist eine Auslöseeinrichtung 4 vorgesehen, welche die elektrische Energie in eine mechanische Energie umsetzt. Hierzu besitzt die Auslöseeinrichtung ein Betätigungsglied 5, das im Auslösefall auf ein Auslöseblech 6 einwirkt. Dieses Auslöseblech ist im Querschnitt etwa L-förmig ausgebildet, wobei sein längerer Schenkel 7 mit einem Auslösehebel 13 korrespondiert und der kürzere Schenkel 8 endseitig derart umgebogen ist, daß ein kleines Stück dieses Schenkels parallel zum längeren Schenkel verläuft und damit einen Anschlag 9 für das Betätigungsglied 5 bildet. In der Mitte des längeren Schenkels weist das Auslöseblech eine abgewinkelte Lasche 10 mit einer Bohrung auf, die ein Aufstecken des Auslöseblechs auf eine gehäusefeste Achse 11 gestattet. Das Auslöseblech steht unter der Wirkung einer Drehfeder 14.According to the figure, the mechanism of the residual current circuit breaker is accommodated in a housing 1, the visible side wall 2 of which adjoins an adjacent circuit breaker (not shown). In this side wall there is a slot 3, which is provided for a transmission element from the residual current circuit breaker to the adjacent circuit breaker. A triggering device 4 is provided for triggering the residual current circuit breaker, which converts the electrical energy into mechanical energy. For this purpose, the release device has an actuating element 5, which acts on a release plate 6 in the event of a release. This release plate is approximately L-shaped in cross section, its longer leg 7 corresponds to a release lever 13 and the shorter leg 8 is bent at the end such that a small piece of this leg runs parallel to the longer leg and thus a stop 9 for the actuator 5 forms. In the middle of the longer leg, the release plate has an angled tab 10 with a bore, which allows the release plate to be plugged onto a shaft 11 fixed to the housing. The trigger plate is under the action of a torsion spring 14.

Ein Rückführungsblech 15 besitzt endseitig ein rohrförmiges Teil 16, welches eine gehäusefeste Achse 17 umschließt. Im mittleren Bereich weist das Rückführungsblech eine abgewinkelte Lasche 18 mit einer Bohrung auf, die zur Aufnahme eines Rückstellbügels 21 dient. Am freien Ende ist das Rückführungsblech derart abgewinkelt, daß es im eingeschalteten Zustand des Fehlerstromschutzschalters etwa senkrecht auf dem Auslöseblech 6 unterhalb des Drehpunktes steht. Die Bewegung des Rückführungsblechs erfolgt gegen die Wirkung einer Konusfeder 20.A return plate 15 has a tubular part 16 at the end, which encloses an axis 17 fixed to the housing. In the middle area, the return plate has an angled tab 18 with a bore, which serves to receive a reset bracket 21. At the free end, the return plate is angled in such a way that, when the residual current circuit breaker is switched on, it is approximately perpendicular to the trip plate 6 below the pivot point. The movement of the return plate takes place against the action of a conical spring 20.

Der Rückstellbügel 21 ist an seinem freien Ende kreisförmig abgebogen und umschließt einen zylindrischen Stift 22. Gleichfalls sind mit diesem zylindrischen Stift ein Ausschaltbügel 25 für den benachbarten Leitungsschutzschalter und ein Zwischenglied 26 verbunden. Der zylindrische Stift gleitet in einer beidseitigen Schaltkulisse 24, die einmal von der Rückwand 2 und zum anderen von einer Zwischenplatte 30 (nicht dargestellt) gebildet wird. Die Bewegung des zylindrischen Stifts erfolgt bei der Einschaltung gegen die Wirkung einer Drehfeder 23, die gleichzeitig den Auslösestrom bei Betätigung der Prüftaste führt. Das Zwischenglied steht über einem Bügel 28 mit dem Einschalthebel 29 des Fehlerstromschutzschalters in Verbindung. Mit dem Zwischenglied ist ferner ein Verklinkungshebel 27 verbunden, der die Verklinkungsstelle mit dem Auslösehebel 13 bildet, der unter der Wirkung einer Drehfeder 14 steht.The reset bracket 21 is bent at its free end in a circle and encloses a cylindrical pin 22. Likewise, a switch-off bracket 25 for the adjacent circuit breaker and an intermediate member 26 are connected to this cylindrical pin. The cylindrical pin slides in one on both sides Switching gate 24, which is formed on the one hand by the rear wall 2 and on the other hand by an intermediate plate 30 (not shown). The movement of the cylindrical pin takes place when it is switched on against the action of a torsion spring 23, which at the same time carries the tripping current when the test button is pressed. The intermediate link is connected via a bracket 28 to the switch lever 29 of the residual current circuit breaker. A latching lever 27 is also connected to the intermediate member and forms the latching point with the release lever 13, which is under the action of a torsion spring 14.

Da der Fehlerstromschutzschalter über keinerlei Schaltkontakte verfügt, muß der benachbarte Leitungsschutzschalter das Schalten der Kontakte übernehmen, d.h. beide Schalter müssen eingeschaltet werden. Der Leitungsschutzschalter kann auch bis zu einer vierpoligen Ausführung eingesetzt sein. Das gleichzeitige Ein- und Ausschalten einer mehrfachen Kombination von Hand erfolgt durch untereinander gekoppelte Einschalthebel. Beim Ausschalten im Fehlerfall lösen alle Leitungsschutzschalter gleichzeitig aus, da die Auslösehebel aller Leitungsschutzschalter miteinander in Wirkverbindung stehen.Since the residual current circuit breaker has no switch contacts, the adjacent circuit breaker must take over the switching of the contacts, i.e. both switches must be turned on. The circuit breaker can also be used up to a four-pole version. The simultaneous switching on and off of a multiple combination by hand takes place by means of mutually coupled switch levers. When switching off in the event of a fault, all miniature circuit breakers trip simultaneously, since the release levers of all miniature circuit breakers are in operative connection with one another.

In einem Fehlerstromfall wird die Auslöseeinrichtung 4 derart beaufschlagt, daß das Betätigungsglied 5 nach außen tritt und das Auslöseblech 6 im Uhrzeigersinn bewegt. Damit wirkt das Ende des längeren Schenkels 7 auf den Auslösehebel 13 des Fehlerstromschutzschalters ein, womit die Verklinkungsstelle zwischen dem Verklinkungshebel 27 und dem Auslösehebel 13 aufgehoben wird. Damit kann der zylindrische Stift 22 in der Schaltkulisse 24 in Richtung zum Auslösehebel 13 gleiten, womit gleichzeitig der Ausschaltbügel für den Leitungsschutzschalter die Verklinkungsstelle im benachbarten Leitungsschutzschalter aufhebt und die Schaltkontakte öffnet. Ferner wird mit diesem Vorgang der Rückstellbügel 21 betätigt, so daß das Rückführungsblech 15 das Auslöseblech 6 entgegen dem Uhrzeigersinn dreht und damit über das Betätigungsglied 5 die Auslöseeinrichtung 4 zurückstellt.In the event of a fault current, the triggering device 4 is acted on in such a way that the actuating member 5 steps outward and the triggering plate 6 moves clockwise. The end of the longer leg 7 thus acts on the release lever 13 of the residual current circuit breaker, with the result that the latching point between the latching lever 27 and the release lever 13 is removed. The cylindrical pin 22 can thus slide in the switching link 24 in the direction of the release lever 13, whereby the switch-off bracket for the circuit breaker simultaneously removes the latching point in the adjacent circuit breaker and opens the switching contacts. Furthermore, the reset bracket 21 is actuated with this process, so that the return plate 15 rotates the release plate 6 counterclockwise and thus resets the release device 4 via the actuator 5.

Im Überstrom- oder Kurzschlußfall wird nur der Leitungsschutzschalter betätigt, während der Fehlerstromschutzschalter wegen seiner empfindlichen Auslöseeinrichtung im eingeschalteten Zustand verbleibt.In the event of an overcurrent or short circuit, only the circuit breaker is actuated, while the residual current circuit breaker remains in the switched-on state due to its sensitive tripping device.

Claims (4)

  1. Mechanism for an earth fault current circuit breaker combined with a line circuit breaker, which have separate switch levers (29) for both switches, incorporating a mechanism with which the release device (4) of the earth fault current circuit breaker can be reset, with a transmission element (25) acting on the latching of the line circuit breaker, wherein an actuator plate (6) capable of movement round an axis (11) fixed in the housing is operatively connected to an activating element (5) of the release device (4), a return plate (15) under pressure from a spring (20), and a release lever (13) for the earth fault current circuit breaker, wherein the return plate (15) has a jointed connection by way of a resetting arm (21) to a transmission element taking the form of a contact-breaking arm (25) for the line circuit breaker, with the joint taking the form of a cylindrical pin (22) and movable in a switch gate (24), wherein the cylindrical pin is connected by means of an intermediate element (26) both with the switch lever (29) for the earth fault current circuit breaker and with a latching lever (27) for the release lever, and wherein the contact-breaking arm enters the adjacent line circuit breaker through an aperture (3) in the housing (1) and is operatively connected to the release lever of the line circuit breaker, and wherein the spring (20) on release simultaneously resets the release device (4) by means of the return plate (15) and the actuator (6) and cuts out the line circuit breaker by means of the resetting arm (21) and the contact-breaking arm (25).
  2. Mechanism as claimed in Claim 1, wherein the actuator plate (6) is roughly L-shaped, with the longer arm (7) having two angled brackets (10), each with a hole drilled in them, and the shorter arm (8) angled at its extremity parallel to the longer arm as a stop (9) for the activating element (5) of the release device (4).
  3. Mechanism as claimed in Claim 1 or 2, wherein the return plate (15) is of tubular form (16) at one end and can be pushed on to a fixed axis (17), wherein an angled bracket (18) with a hole drilled for the resetting arm (21) is located in the middle area of the return plate, and wherein the return plate can be rotated around the fixed axis against the pressure of the spring (20), and wherein the free end (19) of the return plate is angled in such a manner that it strikes approximately vertically on the longer arm (7) of the actuator plate (6).
  4. Mechanism as claimed in one of Claims 1 to 3, wherein the cylindrical pin (22) is movable after the application of the resetting arm (21) of the contact-breaking arm (25) for the line circuit breaker and of an intermediate element (26) in the switch gate (24) of the housing rear wall (2) and an intermediate plate (30) in the earth fault current circuit breaker against the pressure of a torsion spring (23), which simultaneously carries the actuating current when the test key is pressed.
EP87115460A 1986-12-19 1987-10-22 Mechanism for an earth fault current circuit breaker combined with a line circuit breaker Expired - Lifetime EP0271669B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643511 1986-12-19
DE19863643511 DE3643511A1 (en) 1986-12-19 1986-12-19 MECHANISM FOR A FAULT CIRCUIT BREAKER COMBINED WITH A CIRCUIT BREAKER

Publications (3)

Publication Number Publication Date
EP0271669A2 EP0271669A2 (en) 1988-06-22
EP0271669A3 EP0271669A3 (en) 1990-02-28
EP0271669B1 true EP0271669B1 (en) 1993-01-20

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Application Number Title Priority Date Filing Date
EP87115460A Expired - Lifetime EP0271669B1 (en) 1986-12-19 1987-10-22 Mechanism for an earth fault current circuit breaker combined with a line circuit breaker

Country Status (4)

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EP (1) EP0271669B1 (en)
DE (2) DE3643511A1 (en)
DK (1) DK166420B1 (en)
ES (1) ES2039400T3 (en)

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AT410726B (en) * 1993-03-18 2003-07-25 Felten & Guilleaume Ag Oester BREAKERS
DE10118098A1 (en) * 2001-04-11 2002-10-17 Abb Patent Gmbh Service switching device
CZ300886B6 (en) * 2002-03-25 2009-09-02 Oez S.R.O. Release gear, in particular of switching mechanisms of circuit breakers and disconnect switches
FR3050313B1 (en) * 2016-04-14 2021-02-19 Hager Electro Sas LINE PROTECTION ELECTRICAL DEVICE
CN107946153A (en) * 2018-01-04 2018-04-20 常安集团有限公司 Leakage circuit breakers

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DE2802925C2 (en) * 1978-01-24 1980-03-20 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Switching mechanism for miniature circuit breakers in flat design
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DE2904211C2 (en) * 1979-02-05 1985-01-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Residual current circuit breaker that is coupled to a line circuit breaker
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FR2561819B1 (en) * 1984-03-26 1987-10-30 Telemecanique Electrique ADDITIVE BLOCK COUPLABLE TO A CIRCUIT BREAKER

Also Published As

Publication number Publication date
ES2039400T3 (en) 1993-10-01
DE3783743D1 (en) 1993-03-04
EP0271669A3 (en) 1990-02-28
DK670687A (en) 1988-06-20
DE3643511C2 (en) 1992-06-17
EP0271669A2 (en) 1988-06-22
DE3643511A1 (en) 1988-06-30
DK166420B1 (en) 1993-05-17
DK670687D0 (en) 1987-12-18

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