EP1071108A2 - Electromagnetic actuator, in particular a trip device, in paricular for a circuit breaker - Google Patents

Electromagnetic actuator, in particular a trip device, in paricular for a circuit breaker Download PDF

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Publication number
EP1071108A2
EP1071108A2 EP00114808A EP00114808A EP1071108A2 EP 1071108 A2 EP1071108 A2 EP 1071108A2 EP 00114808 A EP00114808 A EP 00114808A EP 00114808 A EP00114808 A EP 00114808A EP 1071108 A2 EP1071108 A2 EP 1071108A2
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EP
European Patent Office
Prior art keywords
spring
arm
rocker
armature
actuator
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
EP00114808A
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German (de)
French (fr)
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EP1071108B1 (en
EP1071108A3 (en
Inventor
Erwin Ing. Muders
Joachim Majewski
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ABB Patent GmbH
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ABB Patent GmbH
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Publication of EP1071108A2 publication Critical patent/EP1071108A2/en
Publication of EP1071108A3 publication Critical patent/EP1071108A3/en
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Publication of EP1071108B1 publication Critical patent/EP1071108B1/en
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    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the invention relates to an electromagnetic actuator according to the preamble of the claim 1.
  • Such actuators are used on a large scale, especially in circuit breakers, used to detect a short circuit and switch it off.
  • the actuator or Triggers have a yoke and inside the yoke a coil that has an armature and surrounds a nucleus. If a short circuit occurs, the anchor will be against the core pulled and the movement of the armature on a contact lever or on movable Transfer contact piece and / or to a key switch; when the movement of the Switch lock is only transferred to the contact piece, the contact piece return to the on position after the short circuit has ended; about the Switch lock, the movable contact piece is opened permanently.
  • a captive magnet is used to set the tripping point or the tripping current used; for magnetic releases there are also arrangements with an external one Cuff spring.
  • the magnetic triggers which serve as short interrupters, normally have a magnet for captivation.
  • the disadvantage here is the high cost of the magnet; the holding force of the magnet is limited by its geometry, and the response value is polarity dependent. Furthermore, the force curve cannot be changed, since practically no force acts on the anchor after the magnet has been torn off.
  • the object of the invention is to provide an actuator of the type mentioned at which the release is independent of the pole and the force course of the bondage for different Variants can be adjusted.
  • rocker in her knee is rotatably mounted.
  • the axis of rotation of the rocker is located radially next to the anchor.
  • the seesaw is approximately L-shaped, with its arm coupled to the anchor approximately vertical approximately parallel to the central axis of the armature and its arm coupled with the spring to get lost.
  • the anchor jumps so that the dead center position can be reached or exceeded against the direction of force of the spring.
  • Another advantageous embodiment of the invention may consist in that the The rocker is mounted on the yoke, in the same way the spring can with its other Be attached to the yoke at the end.
  • the actuator which is then used as a trigger z. B. used in a breaker is reset by a contact pressure spring that is operated directly by the trigger Contact lever is assigned to sufficient when switched on To generate contact pressure.
  • the actuator is used as a trigger in a circuit breaker used, then it is by means of the switch toggle over the switch lock of the contact lever deferred.
  • the actuator according to the invention which has the reference number 10 in FIG. 1, is in one Housing 11 of a circuit breaker housed.
  • the actuator 10 has a Yoke 12, one of which has a yoke web running parallel to the longitudinal direction of the actuator 10 shows up under supervision.
  • Inside the yoke there is a coil 13 with a coil feed line 14 and a coil lead 15.
  • the coil 13 surrounds a plunger 16, the ends 17 and 18 of which axially project beyond the actuator or trigger 10.
  • the armature has a guide plate 19 extending transversely to the longitudinal axis and an in Distance to this holding plate 20, through which an intermediate space 21 is formed, into which a first arm 22 of a rocker 23 engages, so that the first arm 22 with the anchor 16 is positively coupled.
  • the rocker 23 has a second one running approximately perpendicular to the first arm 22 Arm 24; it is on a projection 25 of the yoke 12 in a receptacle 26 with it Rotation axis 27 rotatably mounted.
  • At the free end of the second Armes 24 is hooked one end 28 of a tension spring 29, the other end 31 of a projection 30 is also attached to the yoke.
  • the connecting line V between the attachment point 30, 31 and the axis of rotation 27 is a dead center line.
  • the spring 29 acts there is the dead center line V here on the left, a force on the one hand on the second arm 24, which the rocker 23 tries to turn clockwise, and on the other hand over the arm 22 a force on the armature 16, whereby the armature in the ready to trip shown in Fig. 1 Position is held.
  • the spring acts on the rocker a torque that runs counterclockwise, so that the switch-off movement of the armature is additionally accelerated by the force of the spring.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Magnetically Actuated Valves (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)

Abstract

A rotatably mounted rocker (23), whose location is fixed w.r.t. the actuator, is provided with a first arm (22) coupled to an armature (16) and a second arm (24) acting on one end of a captive spring (29). The other end of the spring is fixed. The rocker is arranged so that the articulation point of the spring bends along a dead-point line extending through the pivot point and articulation point when triggered, so that the force of the spring keeping the armature (16) in its rest position is reduced.

Description

Die Erfindung betrifft einen elektromagnetischen Aktor gemäß dem Oberbegriff des Anspruches 1.The invention relates to an electromagnetic actuator according to the preamble of the claim 1.

Derartige Aktoren werden in großem Umfang, insbesondere in Leitungsschutzschaltern, eingesetzt, um einen Kurzschluß zu erfassen und abzuschalten. Der Aktor bzw. Auslöser besitzen ein Joch und im Inneren des Joches eine Spule, die einen Anker und einen Kern umgibt. Wenn ein Kurzschluß auftritt, dann wird der Anker gegen den Kern gezogen und die Bewegung des Ankers auf einen Kontakthebel oder auf bewegbares Kontaktstück und/oder auf ein Schaltschloß übertragen; wenn die Bewegung des Schaltschlosses lediglich auf das Kontaktstück übertragen wird, wird das Kontaktstück nach Beendigung des Kurzschlusses wieder in Einschaltstellung gelangen; über das Schaltschloß wird das bewegliche Kontaktstück bleibend geöffnet.Such actuators are used on a large scale, especially in circuit breakers, used to detect a short circuit and switch it off. The actuator or Triggers have a yoke and inside the yoke a coil that has an armature and surrounds a nucleus. If a short circuit occurs, the anchor will be against the core pulled and the movement of the armature on a contact lever or on movable Transfer contact piece and / or to a key switch; when the movement of the Switch lock is only transferred to the contact piece, the contact piece return to the on position after the short circuit has ended; about the Switch lock, the movable contact piece is opened permanently.

Zur Einstellung des Auslösepunktes bzw. des Auslösestromes wird ein Fesselmagnet verwendet; für Magnetauslöser gibt es darüber hinaus auch Anordnungen mit einer außenliegenden Fesselfeder. A captive magnet is used to set the tripping point or the tripping current used; for magnetic releases there are also arrangements with an external one Cuff spring.

Die magnetischen Auslöser, die als Kurzunterbrecher dienen, besitzen im Normalfall einen Magneten zur Fesselung. Nachteilig sind hier die hohen Kosten für den Magneten; die Haltekraft des Magneten ist durch seine Geometrie begrenzt, und der Ansprechwert ist polungsabhängig. Darüberhinaus ist der Kraftverlauf nicht veränderbar, da nach Abriß des Magneten praktisch keine Kraft mehr auf den Anker wirkt.The magnetic triggers, which serve as short interrupters, normally have a magnet for captivation. The disadvantage here is the high cost of the magnet; the holding force of the magnet is limited by its geometry, and the response value is polarity dependent. Furthermore, the force curve cannot be changed, since practically no force acts on the anchor after the magnet has been torn off.

Aufgabe der Erfindung ist es, einen Aktor der eingangs genannten Art zu schaffen, bei dem die Auslösung polunabhängig ist und der Kraftverlauf der Fesselung für verschiedene Varianten angepaßt werden kann.The object of the invention is to provide an actuator of the type mentioned at which the release is independent of the pole and the force course of the bondage for different Variants can be adjusted.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Anspruches 1.This object is achieved according to the invention by the features of claim 1.

Erfindungsgemäß also ist eine bezogen auf den Aktor ortsfest drehbar gelagerte, zweiarmige Wippe vorgesehen, deren einer Arm mit dem Anker gekuppelt ist und an derem anderen Arm ein Ende einer Fesselfeder angreift, deren anderes Ende ebenfalls bezogen auf den Anker, ortsfest festgelegt ist; die Wippe ist dabei so angeordnet, daß die Mittellinie der Feder zu der durch die Drehachse der Wippe und den Einhangpunkt des anderen Endes verlaufende Totpunktlinie beim Auslösevorgang hinschwenkt, so daß die Kraft der den Anker in dessen Ruhestellung festhaltenden Feder sich beim Auslösevorgang verringert.According to the invention, a rotatably mounted with respect to the actuator, two-armed rocker provided, one arm is coupled to the anchor and on whose other arm attacks one end of a cuff spring, the other end also based on the anchor, is fixed; the rocker is arranged so that the center line of the spring to that through the axis of rotation of the rocker and the mounting point of the other end running dead center line pivots during the triggering process, see above that the force of the anchor holding the anchor in its rest position is at Triggering process reduced.

Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, daß die Wippe in ihrem Knie drehbar gelagert ist.Another advantageous embodiment of the invention is that the rocker in her knee is rotatably mounted.

Dabei befindet sich die Drehachse der Wippe radial neben dem Anker.The axis of rotation of the rocker is located radially next to the anchor.

Eine die Anordnung weiter verbessernde Maßnahme besteht darin, daß der Anlenkpunkt der Feder an der Wippe die Totpunktlage überquert, sodaß die Feder den Anker in Auslöserichtung zusätzlich mit beschleunigt. Damit wirkt beim Auslösen auf den Anker sowohl das von der Spule erzeugte magnetische Feld, als auch die Kraft der Feder, die sich vergrößert, je weiter sich der Anker in Auslöserichtung bewegt. One measure that further improves the arrangement is that the articulation point the spring on the rocker crosses the dead center position, so that the spring the anchor also accelerated in the direction of release. This acts on the anchor when triggered both the magnetic field generated by the coil and the force of the spring, which increases the further the armature moves in the release direction.

Die Wippe besitzt etwa eine L-Form, deren mit dem Anker gekuppelter Arm etwa senkrecht zur Mittelachse des Ankers und deren mit der Feder gekuppelte Arm etwa parallel dazu verlaufen.The seesaw is approximately L-shaped, with its arm coupled to the anchor approximately vertical approximately parallel to the central axis of the armature and its arm coupled with the spring to get lost.

Damit die Totpunktlage erreicht oder auch überschritten werden kann, springt der Anker entgegen der Kraftrichtung der Feder vor.The anchor jumps so that the dead center position can be reached or exceeded against the direction of force of the spring.

Dabei bestehen zwei Möglichkeiten:

  • Entweder kann der zweite Arm in Öffnungsrichtung bzw. Auslöserichtung vorspringen oder entgegen der Auslöserichtung. Hieraus ergibt sich dann die Zurordnung der Feder zu dem Arm. Dabei kann die Feder eine Druckfeder oder auch eine Zugfeder sein, In einer besonders bevorzugten Anordnung wird eine Zugfeder verwendet.
    • There are two options:
  • Either the second arm can protrude in the opening direction or release direction or counter to the release direction. This then results in the assignment of the spring to the arm. The spring can be a compression spring or a tension spring. In a particularly preferred arrangement, a tension spring is used.

    • Eine weitere vorteilhafte Ausgestaltung der Erfindung kann darin bestehen, daß die Wippe am Joch gelagert ist, In gleicher Weise kann auch die Feder mit ihrem anderen Ende am Joch eingehängt sein.Another advantageous embodiment of the invention may consist in that the The rocker is mounted on the yoke, in the same way the spring can with its other Be attached to the yoke at the end.

    Wenn die Feder so angeordnet ist, daß sie beim Auslösen die Totpunktlage überwindet, dann wird der Aktor, der dann als Auslöser z. B. in einem Kurzunterbrecher eingesetzt ist, von einer Kontaktdruckfeder zurückgestellt, die einen vom Auslöser direkt betätigten Kontakthebel zugeordnet ist, um im eingeschalteten Zustand ausreichenden Kontaktdruck zu erzeugen. Wird der Aktor als Auslöser in einem Leitungsschutzschalter eingesetzt, dann wird er mittels des Schaltknebels über das Schaltschloß vom Kontakthebel zurückgestellt.If the spring is positioned to overcome dead center when released, then the actuator, which is then used as a trigger z. B. used in a breaker is reset by a contact pressure spring that is operated directly by the trigger Contact lever is assigned to sufficient when switched on To generate contact pressure. The actuator is used as a trigger in a circuit breaker used, then it is by means of the switch toggle over the switch lock of the contact lever deferred.

    Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen sowie weitere Vorteile der Erfindung näher erläutert und beschrieben werden. Using the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements and further advantages of the invention are explained and described in more detail.

    Es zeigen:

    Fig. 1
    den Aktor in auslösebereiter Stellung, und
    Fig. 2
    den Aktor in ausgelöster Stellung.
    Show it:
    Fig. 1
    the actuator in the ready position, and
    Fig. 2
    the actuator in the released position.

    Der erfindungsgemäße Aktor, der in der Fig. 1 die Bezugsziffer 10 besitzt, ist in einem Gehäuse 11 eines Leitungsschutzschalters untergebracht. Der Aktor 10 besitzt ein Joch 12, dessen einer parallel zur Längsrichtung des Aktors 10 verlaufender Jochsteg sich in Aufsicht zeigt. Innerhalb des Joches befindet sich eine Spule 13 mit einer Spulenzuleitung 14 und einer Spulenableitung 15. Die Spule 13 umgibt einen Tauchanker 16, dessen Enden 17 und 18 den Aktor oder Auslöser 10 axial überragen. Am Ende 17 besitzt der Anker eine quer zur Längsachse verlaufende Führungsplatte 19 und eine in Abstand dazu verlaufende Halteplatte 20, durch die ein Zwischenraum 21 gebildet ist, in den ein erster Arm 22 einer Wippe 23 eingreift, sodaß der erste Arm 22 mit dem Anker 16 formschlüssig gekuppelt ist.The actuator according to the invention, which has the reference number 10 in FIG. 1, is in one Housing 11 of a circuit breaker housed. The actuator 10 has a Yoke 12, one of which has a yoke web running parallel to the longitudinal direction of the actuator 10 shows up under supervision. Inside the yoke there is a coil 13 with a coil feed line 14 and a coil lead 15. The coil 13 surrounds a plunger 16, the ends 17 and 18 of which axially project beyond the actuator or trigger 10. At the end of 17th the armature has a guide plate 19 extending transversely to the longitudinal axis and an in Distance to this holding plate 20, through which an intermediate space 21 is formed, into which a first arm 22 of a rocker 23 engages, so that the first arm 22 with the anchor 16 is positively coupled.

    Die Wippe 23 besitzt einen etwa senkrecht zum ersten Arm 22 verlaufenden zweiten Arm 24; sie ist an einem Vorsprung 25 des Joches 12 in einer Aufnahme 26 mit ihrer Drehachse 27 drehbar gelagert. Bei der Ausführungsform gemäß Fig. 1 springt der zweite Arm 24 entgegen der Auslöserichtung A vor. An dem freien Ende des zweiten Armes 24 ist ein Ende 28 einer Zugfeder 29 eingehängt, deren anderes Ende 31 an einem Vorsprung 30 ebenfalls am Joch eingehängt ist. Die Verbindungslinie V zwischen dem Anhängpunkt 30, 31 und der Drehachse 27 ist eine Totpunktlinie.The rocker 23 has a second one running approximately perpendicular to the first arm 22 Arm 24; it is on a projection 25 of the yoke 12 in a receptacle 26 with it Rotation axis 27 rotatably mounted. In the embodiment according to FIG. 1, the jumps second arm 24 against the release direction A. At the free end of the second Armes 24 is hooked one end 28 of a tension spring 29, the other end 31 of a projection 30 is also attached to the yoke. The connecting line V between the attachment point 30, 31 and the axis of rotation 27 is a dead center line.

    In der auslösebereiten Stellung des Ankers, wie in Fig. 1 gezeigt, wirkt, da die Feder 29 sich hier links der Totpunktlinie V befindet, eine Kraft einerseits auf den zweiten Arm 24, die die Wippe 23 in Uhrzeigersinn zu Drehen sucht, und andererseits über den Arm 22 eine Kraft auf den Anker 16, wodurch der Anker in der in Fig. 1 dargestellten auslösebereiten Stellung festgehalten ist. In the ready position of the armature, as shown in FIG. 1, the spring 29 acts there is the dead center line V here on the left, a force on the one hand on the second arm 24, which the rocker 23 tries to turn clockwise, and on the other hand over the arm 22 a force on the armature 16, whereby the armature in the ready to trip shown in Fig. 1 Position is held.

    Sobald aufgrund eines Kurzschlußstromes der Anker in Richtung A gezogen wird, verschwenkt der Anker die Wippe 23 entgegen dem Uhrzeigersinn und das von der Feder auf die Wippe ausgeübte Drehmoment verkleinert sich solange, bis die Kraftrichtung der Feder 29 in der Totpunktlage V liegt; in dieser Stellung wäre die Kraft auf den Anker null. Diese Stellung ist in der Fig. 2 dargestellt. Es ist erkennbar, daß die Wirklinie der Kraft der Feder etwa mit der Totpunktlinie V zusammenfällt.As soon as the armature is pulled in direction A due to a short-circuit current, swivels the anchor the rocker 23 counterclockwise and that of the spring Torque exerted on the rocker decreases until the direction of force the spring 29 is in the dead center position V; in this position the force on the anchor would be zero. This position is shown in FIG. 2. It can be seen that the line of action of the Force of the spring coincides approximately with the dead center line V.

    Wenn nun die Totpunktlinie überschritten wird, dann wirkt die Feder auf die Wippe mit einem Drehmoment, welches entgegen dem Uhrzeigersinn verläuft, sodaß die Ausschaltbewegung des Ankers zusätzlich durch die Kraft der Feder beschleunigt wird.If the dead center line is now exceeded, the spring acts on the rocker a torque that runs counterclockwise, so that the switch-off movement of the armature is additionally accelerated by the force of the spring.

    Eine Rückstellung des Ankers und damit eine Rückstellung der Wippe und der Feder müssen dann beim Einschaltvorgang vorgenommen werden.A reset of the armature and thus a reset of the rocker and the spring must then be done when switching on.

    Claims (10)

    Elektomagnetischer Aktor, insbesondere elektromagnetischer Auslöser für einen Leitungsschutzschalter oder dgl, mit einem Joch, einer Spule, einem Anker, einem Kern und einer Fesselfeder, dadurch gekennzeichnet, daß eine bezogen auf den Aktor ortsfest drehbar gelagerte Wippe (23) vorgesehen ist, deren erster Arm (22) mit dem Anker (16) gekoppelt ist und an derem zweiten Arm (24) ein Ende einer Fesselfeder (29) angreift, deren anderes Ende ebenfalls ortsfest festgelegt ist, und daß die Wippe (23) so angeordnet ist, daß der Anlenkpunkt (28) der Feder (29) am zweiten Arm auf eine durch den Drehpunkt und den Anlenkpunkt verlaufende Totpunktlinie (V) beim Auslösevorgang hinschwenkt, so daß die Kraft der den Anker (16) in dessen Ruhestellung festhaltenden Feder sich beim Auslösevorgang verringert.Electromagnetic actuator, in particular an electromagnetic release for a circuit breaker or the like, with a yoke, a coil, an armature, a core and a cage spring, characterized in that a rocker (23) which is rotatably mounted in relation to the actuator is provided, the first arm of which (22) is coupled to the armature (16) and on whose second arm (24) one end of a tether spring (29) engages, the other end of which is also fixed, and that the rocker (23) is arranged so that the articulation point (28) of the spring (29) on the second arm swings toward a dead center line (V) extending through the pivot point and the articulation point during the triggering process, so that the force of the spring holding the armature (16) in its rest position decreases during the triggering process. Aktor nach Anspruch 1, dadurch gekennzeichnet, daß die Wippe (23) in ihrem Knie drehbar gelagert ist.Actuator according to claim 1, characterized in that the rocker (23) in her knee is rotatably mounted. Aktor nach Anspruch 2, dadurch gekennzeichnet, daß die Drehachse (27) der Wippe (23) radial neben dem Anker liegt.Actuator according to claim 2, characterized in that the axis of rotation (27) the rocker (23) lies radially next to the anchor. Aktor nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß der Anlenkpunkt der Fesselfeder (29) an der Wippe (23) die Totpunktlinie (V) überquert, sodaß die Feder den Anker in Auslöserichtung zusätzlich mit beschleunigt.Actuator according to one of the preceding claims, characterized in that the articulation point of the shackle spring (29) on the rocker (23) crosses the dead center line (V), so that the spring also accelerates the armature in the release direction. Aktor nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß die Wippe (23) etwa eine L-Form besitzt, deren mit dem Anker (16) gekuppelter erster Arm (22) etwa senkrecht zur Mittelache des Ankers (16) und deren mit der Feder (29) gekuppelter zweiter Arma (24) etwa parallel zur Mittelachse des Ankers (16) verlaufen. Actuator according to one of the preceding claims, characterized in that the rocker (23) has approximately an L-shape, the first of which is coupled to the armature (16) Arm (22) approximately perpendicular to the central axis of the armature (16) and its with the spring (29) coupled second arm (24) run approximately parallel to the central axis of the armature (16). Aktor nach Anspruch 5, dadurch gekennzeichnet, daß der zweite Arm (24) entgegen der Kraftrichtung der Fesselfeder (29) vorspringt.Actuator according to claim 5, characterized in that the second arm (24) protrudes against the force direction of the tether spring (29). Aktor nach Anspruch 6, dadurch gekennzeichnet, daß der zweite Arm (24) in Auslöserichtung des Aktors vorspringt.Actuator according to claim 6, characterized in that the second arm (24) protrudes in the triggering direction of the actuator. Aktor nach Anspruch 6, dadurch gekennzeichnet, daß der zweite Arm entgegen der Auslöserichtung des Aktors vorspringt.Actuator according to claim 6, characterized in that the second arm opposes protrudes the triggering direction of the actuator. Aktor nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß die Wippe (23) am Joch (12) gelagert ist.Actuator according to one of the preceding claims, characterized in that the rocker (23) is mounted on the yoke (12). Aktor nach Anspruch 9, dadurch gekennzeichnet, daß die Feder mit ihrem anderen Ende ebenfalls am Joch aufgehängt ist.Actuator according to claim 9, characterized in that the spring with its other end is also hung on the yoke.
    EP00114808A 1999-07-21 2000-07-11 Electromagnetic actuator, in particular a trip device, in paricular for a circuit breaker Expired - Lifetime EP1071108B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19934094 1999-07-21
    DE19934094A DE19934094A1 (en) 1999-07-21 1999-07-21 Electromagnetic actuator, in particular electromagnetic release, in particular for a circuit breaker

    Publications (3)

    Publication Number Publication Date
    EP1071108A2 true EP1071108A2 (en) 2001-01-24
    EP1071108A3 EP1071108A3 (en) 2002-06-19
    EP1071108B1 EP1071108B1 (en) 2003-08-27

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00114808A Expired - Lifetime EP1071108B1 (en) 1999-07-21 2000-07-11 Electromagnetic actuator, in particular a trip device, in paricular for a circuit breaker

    Country Status (5)

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    EP (1) EP1071108B1 (en)
    AT (1) ATE248433T1 (en)
    DE (2) DE19934094A1 (en)
    HU (1) HUP0002802A2 (en)
    PL (1) PL341552A1 (en)

    Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2024143A1 (en) * 1970-05-16 1971-12-02 Siemens Ag Switching device with electromagnetic release
    DE3619239A1 (en) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Rapid-action tripping device for line protection circuit breakers

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3833128A1 (en) * 1988-09-29 1990-04-05 Siemens Ag Electromagnetic release, especially for line protection circuit breakers
    DE4312950A1 (en) * 1993-04-21 1994-10-27 Abb Patent Gmbh Magnetic trigger for an electrical switching device
    DE4445419A1 (en) * 1994-12-20 1996-06-27 Abb Patent Gmbh Electrical load protection switch with electromagnetic release

    Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2024143A1 (en) * 1970-05-16 1971-12-02 Siemens Ag Switching device with electromagnetic release
    DE3619239A1 (en) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Rapid-action tripping device for line protection circuit breakers

    Also Published As

    Publication number Publication date
    PL341552A1 (en) 2001-01-29
    HU0002802D0 (en) 2000-09-28
    ATE248433T1 (en) 2003-09-15
    DE50003421D1 (en) 2003-10-02
    HUP0002802A2 (en) 2001-02-28
    EP1071108B1 (en) 2003-08-27
    DE19934094A1 (en) 2001-01-25
    EP1071108A3 (en) 2002-06-19

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