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EP0813219B1 - Undervoltage release device - Google Patents

Undervoltage release device Download PDF

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Publication number
EP0813219B1
EP0813219B1 EP96109274A EP96109274A EP0813219B1 EP 0813219 B1 EP0813219 B1 EP 0813219B1 EP 96109274 A EP96109274 A EP 96109274A EP 96109274 A EP96109274 A EP 96109274A EP 0813219 B1 EP0813219 B1 EP 0813219B1
Authority
EP
European Patent Office
Prior art keywords
latch
auxiliary switch
release
switch
point
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
EP96109274A
Other languages
German (de)
French (fr)
Other versions
EP0813219A1 (en
Inventor
Winfried Dipl.-Ing. Vierling
Wolfgang Dipl.-Ing. Leitl
Hans-Georg Dipl.-Ing. Finger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT96109274T priority Critical patent/ATE209828T1/en
Priority to DE59608320T priority patent/DE59608320D1/en
Priority to EP96109274A priority patent/EP0813219B1/en
Priority to TR97/00468A priority patent/TR199700468A1/en
Publication of EP0813219A1 publication Critical patent/EP0813219A1/en
Application granted granted Critical
Publication of EP0813219B1 publication Critical patent/EP0813219B1/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
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H2083/208—Converting under voltage release [UVR] and shunt release
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/465—Self-contained, easily replaceable microswitches

Definitions

  • the invention relates to an undervoltage release, in particular can be coupled with low-voltage circuit breakers, whose electromagnetic release device with an armature falling under an undervoltage on a release mechanism acts, the anchor of which by means of a manual control element and a holding lever when switching on Magnetic system of the trigger device is created, in detail according to the generic term of claim 1.
  • the holding lever keeps the anchor at least close to the poles of the Magnet system until switched on by means of an auxiliary switch voltage is applied to the anchor, which at regular conditions on the magnet system.
  • This Switching on is premature with regard to an imaginary one System switch-on setting, for example, to be coupled Miniature circuit breaker is specified.
  • the invention has for its object with simple and clear components to an undervoltage release develop to meet the most diverse requirements in can be easily adjusted.
  • the described task is solved by a Undervoltage release according to claim 1.
  • the holding lever is then from one coupled to the hand control Back to the anchor system on the magnet system, the backdrop then kinematically a release area having.
  • the pawl of the unlatching device is with regard to the auxiliary switch and its structure shaped and / or positioned so that a site of action is formed to operate the auxiliary switch, wherein in the on position of the undervoltage release at least one contact path of the auxiliary switch closed is to apply voltage to the winding of the magnet system.
  • the release area of the jack eliminates, for example compared to an undervoltage release DE-C-33 08 437, in the magnet system an additional energy store, which must be tensioned by pressing down on the To release the armature of the magnet system for tripping.
  • the auxiliary switch forms can be marketable Auxiliary switches used in a suitable manner as components and to be ordered.
  • the auxiliary switch has a high operating voltage on the input side feed the output side through a control transformer for the Coil of the magnet system is reduced, as shown in FIG. 11 is illustrated.
  • the system for the adjustment arm of the auxiliary switch can by a structure according to claim 7 adjusted manufacturing and be adjusted.
  • the undervoltage release can according to claim 8 with a Auxiliary switches work, the switching distances after the Principle of a snap switch are executed.
  • the backdrop for the holding lever can be according to claim 9 in the hand control in a roller body with the bearing of the Manual control member to be executed in which an arch bridge is formed along a sector on the roller body.
  • the undervoltage release according to FIG. 1 has an electromagnetic one Tripping device 1 with an armature 2, which at Undervoltage drops from the magnet system and onto an unlatching device 3 acts.
  • the anchor 2 is by means of a Manual control element 4 and a holding lever 5 when switching on applied to the magnet system of the release device 1, until by switching on with an auxiliary switch 6 am Magnet system the armature 2 holding voltage is applied.
  • the Voltage rushes in relation to an imaginary system switch-on position, as they are monitored by facilities or laterally installed circuit breaker is given. Applying the armature 2 here means that it up to allowed tolerances close to the magnet system becomes.
  • the holding lever 5 is with the hand control member 4 by a Guide 7 to the anchor system on the magnet system, the backdrop then kinematically a release area 8 has.
  • the pawl 9 is such in terms of Auxiliary switch 6 and its structure shaped and or or positioned that an action point 10 for actuating the Auxiliary switch 6 is formed. In the on position of the Undervoltage release is at least one Contact path of the auxiliary switch 6 closed.
  • the backdrop 7 for the holding lever 5 is in the embodiment in the hand control element 4 in a roller body with the Bearing 11 of the hand control member as an arch web along a sector of the roller body executed.
  • the holding lever 5 is supported by an arm behind the arch bridge as an engaging body 12 of the guide in his Position to anchor 2 held until the Release area 8 when turning the manual control member 4 is reached.
  • the pawl 9 finds a latching point on the coupling member 15, on which the holding lever 5 the coupling member 15 twisting and thus unlatching if the Armature 2 drops into the switch position according to FIG. 4.
  • the handle 9 is rotatable in a guided, movable bearing 16 and with the hand control member 4 through the bracket 17th connected.
  • the pawl 9 can with a molded engaging body 18 act on an arm 19 of the driver 14 and twist it, resulting in devices lined up on the side, for example circuit breakers can.
  • the auxiliary switch 9 with, for example, two electrically parallel switching paths are arranged on a carrier 13, the at least for adjustment under the action of the jack can be pivoted about a bearing 20 of the carrier, until the carrier 13 with its adjusting arm 21 on an adjustable Adjustment system 22 is present.
  • This adjustment system can be formed by a screw, especially one Grub screw. This can be self-tapping in a housing gap be introduced.
  • the auxiliary switch 6 can with Switching routes based on the principle of a snap switch be, whose point of action from the pawl forth as Plunger 23 is executed, the depth of penetration of the position controls the snap switch.
  • the holding lever 5 has a fixed pivot bearing 24. On the holding lever 5 can act on an arm 25 of the pawl 9. The Pawl 9 is acted upon by an energy accumulator 26 which is in the essentially the energy storage of the undervoltage release forms.
  • the undervoltage release has electrical connections 27 up to 32 in and behind the drawing level, in total six connections.
  • the connections 29 and 30 are with a switching path of the auxiliary switch 6 electrically connected and the Connections 31 and 32 with a second switching path of the Auxiliary switch 6.
  • This circuit 33 is exemplary as Flat module executed.
  • the switching distances of the auxiliary switch 6 are closed as long as the plunger 23 of the Auxiliary switch 6 through the action point 10 of the pawl 9th is depressed.
  • the pawl 9 presses the Plunger 23 so that the switching paths in the auxiliary switch 6 getting closed.
  • the holding lever 5 is from the hand control 4 released and is under the power of a weak Spring 34 on the magnet system of the trigger device 1, wherein the armature 2 against the force by electromagnetic forces a trigger spring 35 is held.
  • the holding lever 5 is already with a handle position of about 60 ° of the manual control element 4, seen to the on position, from the Scenery 7 released and lies with closed switching paths in auxiliary switch 6 on armature 2.
  • the anchor will already held by electromagnetic forces. This Switch position is shown in FIG 3. If already at Switching on according to FIG 3 an undervoltage occurs, the Anchor 2, as shown in FIG 4.
  • the coupling link 15 is rotated clockwise so that in the unlatching device 3 released the latching point is and the pawl 9 with its engaging body 18 the driver 14 acts and him under the force of Pawl spring 26 rotated counterclockwise, whereby 5 already shows the magnet system of the triggering device 1 back to the on position by applying the Anchor 2 is transferred.
  • the pawl 9 lifts the holding lever 5 by the latch arm 25 in this position.
  • the undervoltage release according to FIG. 1 enables the derivation a shunt release according to FIG 6, in which the Holding lever is removed and the magnetic system of the release device 1 is mounted upside down.
  • Magnet system and Unlatching device 3 are designed so that they without holding lever in the area of action of a plunger 36 of the Magnetic trigger of the trigger device 1 when tightened Armature 2 is due to a working current.
  • He can be as Remote switch for remote triggering with the driver 14 coupled side-mounted circuit breaker serve.
  • pawl 9 and driver 14 reproduced is a control of the energy storage 26 of the Pawl exerted torque in different handle positions of the hand control member 4 illustrated.
  • the Pawl cooperates with the energy accumulator 26, which with respect its point of attack 39 on the jack and with respect their bearing 16 to the hand control member 4 and with respect a lever arm 37 of the energy accumulator, formed by Point of attack 39 of the energy accumulator 26 on the pawl Tuning the lever arms 37 and 38 the torque in desired Depending on the position of the hand control member 4 makes.
  • the energy accumulator 26 unfolds when the Pawl 9 in the on position initially a disproportionate non-linear increase in torque on the Pawl.
  • the jack 9 is further on by suitable shaping and arrangement matched that the point of action 10 on the auxiliary switch exerts relatively high forces when switched on.
  • the torque curve is shown in the diagram in FIG. 10 illustrated.
  • the abscissa are from the off position angular degrees in the origin up to the switch-on position applied to the handle of the hand control.
  • On the The torque is plotted on the ordinate.
  • the lower, after The straight line rising at the top right shows the linear rise of the Torque in the energy accumulator 26. Above that is the non-linear one
  • the torque curve is plotted. This means Energy for safe tripping before the position of the Latching in the switch-on position available.
  • the Correspond to angles on the abscissa of the diagram according to FIG. 10 the deflection of the spring of the energy accumulator 26 of the pawl.
  • FIG 11 The electrical wiring of an undervoltage release 41 together with adjacent low-voltage circuit breakers 40, for example circuit breakers, is in FIG 11 for presented a use case.
  • Two switching paths 42 and 43 of the auxiliary switch 6 are shown.
  • a converter 44 ensures in the embodiment that the triggering device 1 voltage lower than the mains voltage.
  • in the 11 is the implementation of a Emergency stop circuit shown. With the emergency stop switch open the undervoltage release drops, causing coupled low-voltage circuit breaker 40 can be unlatched and switch off so that the line is interrupted.
  • the Emergency stop switch is designated 45.

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  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Insulated Conductors (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

An under-voltage release whose electromagnetic trip or release device (1) reacts with an armature (2) on an unlatching device (3) during an under-voltage events, in which the armature is applied by means of a manual-control element (4) and a holding lever (5) during switching on of the release device magnetic system. The holding lever is controlled by a crank (7) coupled to the manual-control element until location of the armature on the magnet system, thus adjoining a release or trip zone kinematically on to the crank, with the pawl (9) of the latch release device shaped and positioned in such a way in relation to the aux. switch (6) that a reaction point (10) for actuating the aux. switch is formed and at least one contact path of the aux. switch is closed in the switch-on position of the under-voltage release. The pawl (9) functions together with an energy storage device (26) and is arranged such that the reaction point (10) exerts a comparatively large force on the aux. switch (6) at switch-on.

Description

Die Erfindung bezieht sich auf einen Unterspannungsauslöser, insbesondere koppelbar mit Niederspannungsschutzschaltern, dessen elektromagnetische Auslöseeinrichtung mit einem Anker unter Abfallen bei Unterspannung auf eine Entklinkungseinrichtung einwirkt, wobei dessen Anker mittels eines Handbedienungsgliedes und eines Haltehebels beim Einschalten am Magnetsystem der Auslöseeinrichtung angelegt wird, im einzelnen nach Gattungsbegriff von Patentanspruch 1.The invention relates to an undervoltage release, in particular can be coupled with low-voltage circuit breakers, whose electromagnetic release device with an armature falling under an undervoltage on a release mechanism acts, the anchor of which by means of a manual control element and a holding lever when switching on Magnetic system of the trigger device is created, in detail according to the generic term of claim 1.

Der Haltehebel hält den Anker zumindest nahe an den Polen des Magnetsystems, bis durch Einschalten mittels eines Hilfsschalters am Anker Spannung angelegt wird, die diesen bei regulären Bedingungen am Magnetsystem halten kann. Diese Einschaltung erfolgt voreilend bezüglich einer gedachten Systemeinschaltstellung, die beispielsweise durch zu koppelnde Leitungsschutzschalter vorgegeben ist.The holding lever keeps the anchor at least close to the poles of the Magnet system until switched on by means of an auxiliary switch voltage is applied to the anchor, which at regular conditions on the magnet system. This Switching on is premature with regard to an imaginary one System switch-on setting, for example, to be coupled Miniature circuit breaker is specified.

Ein bekannter derartiger Unterspannungsauslöser (DE-C-33 08 437) arbeitet mit einem gesonderten Kraftspeicher für das Magnetsystem.A known undervoltage release of this type (DE-C-33 08 437) works with a separate energy accumulator for the magnet system.

Bei einem anderen bekannten Unterspannungsauslöser (DE-C-31 14 717) soll der Aufbau vereinfacht werden; er arbeitet mit einem Andrückhebel und einem Klinkenhebel mit einer gemeinsamen Achse. Um die Auslösezeit eines Systems zu verringern, wird bei einem anderen Unterspannungsauslöser (EP-A-0 331 586) bei einer im wesentlichen dreiteiligen Kinematik aus Klinkenhebel, Auslösehebel und Zwischenhebel eine dritte Achse im Vergleich zum zuvor genannten Auslöser eingeführt.Another known undervoltage release (DE-C-31 14 717) the structure is to be simplified; he works with a pressure lever and a ratchet lever a common axis. To trigger a system will decrease with another undervoltage release (EP-A-0 331 586) in an essentially three-part Kinematics of ratchet lever, release lever and intermediate lever a third axis compared to the aforementioned trigger introduced.

Der Erfindung liegt die Aufgabe zugrunde, mit einfachen und übersichtlichen Bauteilen einen Unterspannungsauslöser zu entwickeln, der an die verschiedenartigsten Anforderungen in einfacher Weise angepaßt werden kann.The invention has for its object with simple and clear components to an undervoltage release develop to meet the most diverse requirements in can be easily adjusted.

Die Lösung der geschilderten Aufgabe erfolgt durch einen Unterspannungsauslöser nach Anspruch 1. Der Haltehebel ist danach von einer mit dem Handbedienungsglied gekoppelten Kulisse bis zur Anlage des Ankers am Magnetsystem geführt, wobei die Kulisse kinematisch anschließend einen Freigabebereich aufweist. Die Klinke der Entklinkungseinrichtung ist dabei hinsichtlich des Hilfsschalter und seines Aufbaus so geformt und bzw. oder so positioniert, daß eine Einwirkungsstelle zum Betätigen des Hilfsschalters gebildet ist, wobei in der Einschaltstellung des Unterspannungsauslösers zumindest eine Kontaktstrecke des Hilfsschalters geschlossen ist, um die Wicklung des Magnetsystems an Spannung zu legen. Durch den Freigabebereich der Klinke entfällt, beispielsweise im Vergleich zu einem Unterspannungsauslöser nach DE-C-33 08 437, beim Magnetsystem ein zusätzlicher Kraftspeicher, der durch Niederdrücken gespannt werden muß, um den Anker des Magnetsystems für eine Auslösung freizugeben. Durch die Formgebung der Klinke, die eine Einwirkungsstelle zum Betätigen des Hilfsschalters bildet, können marktgängige Hilfsschalter in geeigneter Weise als Bauteile eingesetzt und angeordnet werden. Durch die Entkopplung von Klinke und Haltehebel läßt sich das beim Einschalten auf die Klinke ausgeübte Drehmoment gemäß Anspruch 2 so steuern, daß bei ausreichend großen Schaltkräften, auch zum Betätigen des Hilfsschalters, dennoch vergleichsweise schwache Verklinkungskräfte anstehen.The described task is solved by a Undervoltage release according to claim 1. The holding lever is then from one coupled to the hand control Back to the anchor system on the magnet system, the backdrop then kinematically a release area having. The pawl of the unlatching device is with regard to the auxiliary switch and its structure shaped and / or positioned so that a site of action is formed to operate the auxiliary switch, wherein in the on position of the undervoltage release at least one contact path of the auxiliary switch closed is to apply voltage to the winding of the magnet system. The release area of the jack eliminates, for example compared to an undervoltage release DE-C-33 08 437, in the magnet system an additional energy store, which must be tensioned by pressing down on the To release the armature of the magnet system for tripping. By the shape of the pawl, which acts as a point of action Pressing the auxiliary switch forms can be marketable Auxiliary switches used in a suitable manner as components and to be ordered. By decoupling the jack and Holding lever that can be switched on the pawl control the torque applied according to claim 2 so that at sufficiently large switching forces, also for actuating the Auxiliary switch, yet comparatively weak latching forces queue.

Wenn der Hilfsschalter mit zwei elektrisch parallel liegenden Schaltstrecken auf einem Träger nach Anspruch 3 versehen ist, erzielt man eine vom übrigen System unabhängige und einfache Justiermöglichkeit.If the auxiliary switch with two electrically parallel Switching paths on a carrier is provided according to claim 3, you achieve a simple and independent of the rest of the system Adjustment possibility.

Wenn der Unterspannungsauslöser nach Anspruch 4 mit sechs Anschlüssen versehen ist, zwei für das Magnetsystem der Auslöseeinrichtung und vier für den Hilfsschalter, kann man dem Hilfsschalter eingangsseitig eine hohe Betriebsspannung zuführen, die ausgangsseitig durch einen Steuertrafo für die Spule des Magnetsystems herabgesetzt wird, wie es in FIG 11 veranschaulicht ist.If the undervoltage release according to claim 4 with six Is provided, two for the magnet system of the Tripping device and four for the auxiliary switch, one can the auxiliary switch has a high operating voltage on the input side feed the output side through a control transformer for the Coil of the magnet system is reduced, as shown in FIG. 11 is illustrated.

Da der Haltehebel den Anker nahe an den Polschuhen des Magnetsystems hält, kommt man mit einfachen Magnetsystemen und ungeschliffenen Polflächen aus. Durch einen Unterspannungsauslöser nach Anspruch 5, bei dem das Magnetsystem über eine Schaltung gespeist ist, die die Spannung gleichrichtet und ggf. aufbereitet oder auf andere Werte umsetzt, kann man mit vergleichsweise einfachen und preisgünstigen Magnetsystemen brummfrei arbeiten. Der sonst ohne aufwendige besondere Vorkehrungen übliche Brumm eines mit Wechselspannung betriebenen Magnetsystems kann dadurch auf wirtschaftliche Weise vermieden werden.Since the holding lever the anchor close to the pole pieces of the Magnet system holds, you come with simple magnet systems and unpolished pole faces. With an undervoltage release according to claim 5, wherein the magnet system over a circuit is fed that rectifies the voltage and, if necessary, processed or converted to other values, one can with comparatively simple and inexpensive magnet systems work hum-free. The otherwise without elaborate special precautions usual humming one with AC voltage operated magnet system can be economical Way to be avoided.

Der erfindungsgemäße Aufbau eines Unterspannungsauslös.ers ermöglicht es, nach Anspruch 6 einen Arbeitsstromauslöser mit weniger, im übrigen mit gleichen Bauteilen, abzuleiten.The construction of an undervoltage release according to the invention enables a shunt release according to claim 6 less, otherwise with the same components.

Die Anlage für den Justierarm des Hilfsschalters kann durch einen Aufbau nach Anspruch 7 fertigungsgünstig verstellt werden und dadurch justiert werden.The system for the adjustment arm of the auxiliary switch can by a structure according to claim 7 adjusted manufacturing and be adjusted.

Der Unterspannungsauslöser kann nach Anspruch 8 mit einem Hilfsschalter arbeiten, dessen Schaltstrecken nach dem Prinzip eines Schnappschalters ausgeführt sind. Hierbei ist die Einwirkungsstelle von der Klinke her beim Hilfsschalter als Stößel ausgeführt, dessen Eindringtiefe die Stellung der Schnappschalter steuert.The undervoltage release can according to claim 8 with a Auxiliary switches work, the switching distances after the Principle of a snap switch are executed. Here is the point of action from the pawl at the auxiliary switch executed as a plunger, the depth of penetration of the position of the Snap switch controls.

Die Kulisse für den Haltehebel kann nach Anspruch 9 im Handbedienungsglied in einem Walzenkörper mit der Lagerstelle des Handbedienungsgliedes ausgeführt sein, in dem ein Bogensteg längs eines Sektors am Walzenkörper ausgebildet ist. The backdrop for the holding lever can be according to claim 9 in the hand control in a roller body with the bearing of the Manual control member to be executed in which an arch bridge is formed along a sector on the roller body.

Die Erfindung soll nun anhand von in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispielen näher erläutert werden:

  • In FIG 1 ist ein Unterspannungsauslöser bei abgenommenem Gehäusedeckel in seiner Ausschaltstellung in Seitenansicht wiedergegeben.
  • In FIG 2 ist der Unterspannungsauslöser nach FIG 1 in Einschaltstellung und bei ausreichender Betriebsspannung dargestellt.
  • In FIG 3 ist der Unterspannungsauslöser bei einer Zwischenstellung des Handbedienungsgliedes, bei etwa 60°, veranschaulicht, bei der der Haltehebel von der mit dem Handbedienungsglied gekoppelten Kulisse freigegeben ist, so daß Auslösung erfolgen kann.
  • In FIG 4 ist dargestellt, daß in einer Stellung nach FIG 3 eine Auslösung durch Abfallen des Ankers des Magnetsystems erfolgt, wobei der Haltehebel mittels eines Koppelgliedes auf die Verklinkungsstelle entklinkend einwirkt.
  • In FIG 5 ist zeitlich nach dem Schaltzustand nach FIG 4 wiedergegeben, daß der Haltehebel durch einen Mitnehmer der Klinke wieder in die Einschaltstellung des Magnetsystems überführt wird und daß der Mitnehmer für seitlich anzubauende Geräte, wie Leitungsschutzschalter, sich in der Stellung nach Auslösung befindet.
  • In FIG 6 ist veranschaulicht, wie aus einem Unterspannungsauslöser durch Entfernen des Haltehebels und durch Umdrehen des Magnetsystems in eine um 180° in der Zeichenebene gedrehte Position bei im übrigen gleichen Bauteilen ein Arbeitsstromauslöser abgeleitet werden kann. Ein derartiger Arbeitsstromauslöser kann beispielsweise als Fernschalter für seitlich anzubauende Geräte eingesetzt werden.
  • In den FIG 7 bis 9 ist veranschaulicht, wie sich beim Einschalten des Unterspannungsauslösers durch das Handbetätigungsorgan die Hebelverhältnisse zum Erzeugen gesteuerter Drehmomente verändern.
  • In FIG 10 ist das durch den Kraftspeicher auf die Klinke ausgeübte Drehmoment infolge einer erfindungsgemäßen Steuerung des Drehmoments beispielhaft veranschaulicht.
  • In FIG 11 ist ein Beispiel für die Beschaltung der Anschlüsse des Unterspannungsauslösers in Verbindung mit seitlich angebauten Leitungsschutzschaltern wiedergegeben.
    • The invention will now be explained in more detail with reference to exemplary embodiments shown roughly schematically in the drawing:
  • 1 shows an undervoltage release with the housing cover removed in its switched-off position in a side view.
  • 2 shows the undervoltage release according to FIG. 1 in the switched-on position and with sufficient operating voltage.
  • 3 shows the undervoltage release in an intermediate position of the manual control element, at approximately 60 °, in which the holding lever is released from the link coupled to the manual control element, so that triggering can take place.
  • FIG. 4 shows that, in a position according to FIG. 3, the armature of the magnet system triggers, the holding lever having a decoupling effect on the latching point by means of a coupling member.
  • FIG. 5 shows in time after the switching state according to FIG. 4 that the holding lever is brought back into the switch-on position of the magnet system by a driver of the pawl and that the driver is in the position after tripping for devices to be mounted on the side, such as circuit breakers.
  • FIG. 6 illustrates how a shunt release can be derived from an undervoltage release by removing the holding lever and by turning the magnet system into a position rotated by 180 ° in the plane of the drawing for the same components. Such a shunt release can be used, for example, as a remote switch for devices to be mounted on the side.
  • FIGS. 7 to 9 illustrate how the lever ratios for generating controlled torques change when the undervoltage release is switched on by the manual actuating element.
  • The torque exerted by the energy accumulator on the pawl as a result of a control of the torque according to the invention is illustrated by way of example in FIG.
  • FIG. 11 shows an example of the wiring of the connections of the undervoltage release in connection with laterally mounted circuit breakers.

    • Der Unterspannungsauslöser nach FIG 1 weist eine elektromagnetische Auslöseeinrichtung 1 mit einem Anker 2 auf, der bei Unterspannung vom Magnetsystem abfällt und auf eine Entklinkungseinrichtung 3 einwirkt. Der Anker 2 wird mittels eines Handbedienungsgliedes 4 und eines Haltehebels 5 beim Einschalten am Magnetsystem der Auslöseeinrichtung 1 angelegt, bis durch Einschalten mittels eines Hilfsschalters 6 am Magnetsystem den Anker 2 haltende Spannung angelegt wird. Die Spannung eilt bezüglich einer gedachten Systemeinschaltstellung, wie sie durch zu überwachende Einrichtungen oder seitlich angebaute Leitungsschutzschalter gegeben ist, vor. Unter Anlegen des Ankers 2 ist hierbei zu verstehen, daß er bis auf erlaubte Toleranzen nahe an das Magnetsystem herangeführt wird.The undervoltage release according to FIG. 1 has an electromagnetic one Tripping device 1 with an armature 2, which at Undervoltage drops from the magnet system and onto an unlatching device 3 acts. The anchor 2 is by means of a Manual control element 4 and a holding lever 5 when switching on applied to the magnet system of the release device 1, until by switching on with an auxiliary switch 6 am Magnet system the armature 2 holding voltage is applied. The Voltage rushes in relation to an imaginary system switch-on position, as they are monitored by facilities or laterally installed circuit breaker is given. Applying the armature 2 here means that it up to allowed tolerances close to the magnet system becomes.

    Der Haltehebel 5 ist mit dem Handbedienungsglied 4 durch eine Kulisse 7 bis zur Anlage des Ankers am Magnetsystem geführt, wobei die Kulisse kinematisch anschließend einen Freigabebereich 8 aufweist. Die Klinke 9 ist derart hinsichtlich des Hilfsschalters 6 und seines Aufbaus geformt und bzw. oder positioniert, daß eine Einwirkungsstelle 10 zum Betätigen des Hilfsschalters 6 gebildet ist. In der Einschaltstellung des Unterspannungsauslösers wird hierdurch zumindest eine Kontaktstrecke des Hilfsschalters 6 geschlossen. The holding lever 5 is with the hand control member 4 by a Guide 7 to the anchor system on the magnet system, the backdrop then kinematically a release area 8 has. The pawl 9 is such in terms of Auxiliary switch 6 and its structure shaped and or or positioned that an action point 10 for actuating the Auxiliary switch 6 is formed. In the on position of the Undervoltage release is at least one Contact path of the auxiliary switch 6 closed.

    Die Kulisse 7 für den Haltehebel 5 ist im Ausführungsbeispiel im Handbedienungsglied 4 in einem Walzenkörper mit der Lagerstelle 11 des Handbedienungsgliedes als Bogensteg längs eines Sektors des Walzenkörpers ausgeführt. Der Haltehebel 5 wird hierbei durch einen den Bogensteg hintergreifenden Arm als Eingriffskörper 12 der Kulissenführung in seiner Anlagestellung zum Anlegen des Ankers 2 gehalten bis der Freigabebereich 8 beim Weiterdrehen des Handbedienungsgliedes 4 erreicht ist. Die Klinke 9 findet eine Verklinkungsstelle am Koppelglied 15, auf das der Haltehebel 5 das Koppelglied 15 verdrehend und damit entklinkend einwirken kann, wenn der Anker 2 in die Schaltstellung nach FIG 4 abfällt. Die Klinke 9 ist in einem geführten, ortsbeweglichen Lager 16 drehbeweglich und mit dem Handbedienungsglied 4 durch den Bügel 17 verbunden. Die Klinke 9 kann mit einem angeformten Eingriffskörper 18 auf einen Arm 19 des Mitnehmers 14 einwirken und diesen verdrehen, wodurch seitlich angereihte Geräte, beispielsweise Leitungsschutzschalter, ausgelöst werden können.The backdrop 7 for the holding lever 5 is in the embodiment in the hand control element 4 in a roller body with the Bearing 11 of the hand control member as an arch web along a sector of the roller body executed. The holding lever 5 is supported by an arm behind the arch bridge as an engaging body 12 of the guide in his Position to anchor 2 held until the Release area 8 when turning the manual control member 4 is reached. The pawl 9 finds a latching point on the coupling member 15, on which the holding lever 5 the coupling member 15 twisting and thus unlatching if the Armature 2 drops into the switch position according to FIG. 4. The handle 9 is rotatable in a guided, movable bearing 16 and with the hand control member 4 through the bracket 17th connected. The pawl 9 can with a molded engaging body 18 act on an arm 19 of the driver 14 and twist it, resulting in devices lined up on the side, for example circuit breakers can.

    Der Hilfsschalter 9 mit beispielsweise zwei elektrisch parallelen Schaltstrecken ist auf einem Träger 13 angeordnet, der zumindest zum Justieren unter der Einwirkung der Klinke um eine Lagerstelle 20 des Trägers verschwenkt werden kann, bis der Träger 13 mit seinem Justierarm 21 an einer verstellbaren Justieranlage 22 anliegt. Diese Justieranlage kann durch eine Schraube gebildet werden, insbesondere eine Madenschraube. Diese kann in einem Gehäusespalt selbstschneidend eingebracht werden. Der Hilfsschalter 6 kann mit Schaltstrecken nach dem Prinzip eines Schnappschalters ausgeführt sein, deren Einwirkungsstelle von der Klinke her als Stößel 23 ausgeführt ist, dessen Eindringtiefe die Stellung des Schnappschalters steuert.The auxiliary switch 9 with, for example, two electrically parallel switching paths are arranged on a carrier 13, the at least for adjustment under the action of the jack can be pivoted about a bearing 20 of the carrier, until the carrier 13 with its adjusting arm 21 on an adjustable Adjustment system 22 is present. This adjustment system can be formed by a screw, especially one Grub screw. This can be self-tapping in a housing gap be introduced. The auxiliary switch 6 can with Switching routes based on the principle of a snap switch be, whose point of action from the pawl forth as Plunger 23 is executed, the depth of penetration of the position controls the snap switch.

    Der Haltehebel 5 weist ein ortsfestes Drehlager 24 auf. Auf den Haltehebel 5 kann ein Arm 25 der Klinke 9 einwirken. Die Klinke 9 ist von einem Kraftspeicher 26 beaufschlagt, der im wesentlichen den Kraftspeicher des Unterspannungsauslösers bildet.The holding lever 5 has a fixed pivot bearing 24. On the holding lever 5 can act on an arm 25 of the pawl 9. The Pawl 9 is acted upon by an energy accumulator 26 which is in the essentially the energy storage of the undervoltage release forms.

    Der Unterspannungsauslöser weist elektrische Anschlüsse 27 bis 32 in und hinter der Zeichenebene auf, also insgesamt sechs Anschlüsse. Im Ausführungsbeispiel sind zwei Anschlüsse, 27, hinter der Zeichenebene, und 28, hinter der Zeichenebene, für das Magnetsystem der Auslöseeinrichtung 1 vorgesehen. Die Anschlüsse 29 und 30 sind mit einer Schaltstrecke des Hilfsschalters 6 elektrisch verbunden und die Anschlüsse 31 und 32 mit einer zweiten Schaltstrecke des Hilfsschalters 6. Zumindest zwischen die Anschlüsse 27 und 28 für die Spule des Magnetsystems der Auslöseeinrichtung 1 ist eine elektrische Schaltung 33 eingeschaltet, die die Spannung gleichrichtet und ggf. aufbereitet oder auf andere Werte umsetzt. Diese Schaltung 33 ist beispielhaft als Flachbaugruppe ausgeführt. Die Schaltstrecken des Hilfsschalters 6 sind geschlossen, solange der Stößel 23 des Hilfsschalters 6 durch die Einwirkungsstelle 10 der Klinke 9 eingedrückt ist.The undervoltage release has electrical connections 27 up to 32 in and behind the drawing level, in total six connections. In the exemplary embodiment there are two Connections, 27, behind the drawing plane, and 28, behind the Drawing plane, for the magnet system of the release device 1 intended. The connections 29 and 30 are with a switching path of the auxiliary switch 6 electrically connected and the Connections 31 and 32 with a second switching path of the Auxiliary switch 6. At least between connections 27 and 28 for the coil of the magnet system of the release device 1 an electrical circuit 33 turned on, the voltage rectified and, if necessary, processed or to other values implements. This circuit 33 is exemplary as Flat module executed. The switching distances of the auxiliary switch 6 are closed as long as the plunger 23 of the Auxiliary switch 6 through the action point 10 of the pawl 9th is depressed.

    In der Einschaltstellung nach FIG 2 drückt die Klinke 9 den Stössel 23 ein, so daß die Schaltstrecken im Hilfsschalter 6 geschlossen werden. Der Haltehebel 5 ist vom Handbedienungsglied 4 freigegeben und liegt unter der Kraft einer schwachen Feder 34 am Magnetsystem der Auslöseeinrichtung 1 an, wobei der Anker 2 durch elektromagnetische Kräfte gegen die Kraft einer Auslösefeder 35 gehalten wird. Der Haltehebel 5 wird bereits bei einer Griffstellung von etwa 60° des Handbedienungsgliedes 4, zur Einschaltstellung gesehen, von der Kulisse 7 freigegeben und liegt bei geschlossenen Schaltstrecken im Hilfsschalter 6 am Anker 2 an. Der Anker wird bereits durch elektromagnetische Kräfte gehalten. Diese Schaltstellung ist in FIG 3 dargestellt. Wenn bereits beim Einschalten nach FIG 3 eine Unterspannung auftritt, fällt der Anker 2 ab, wie es in FIG 4 wiedergegeben ist. Das Koppelglied 15 wird hierbei im Uhrzeigersinn verdreht, so daß in der Entklinkungseinrichtung 3 die Verklinkungsstelle freigegeben wird und die Klinke 9 mit ihrem Eingriffskörper 18 auf den Mitnehmer 14 einwirkt und ihn unter der Kraft der Klinkenfeder 26 gegen den Uhrzeigersinn verdreht, wobei entsprechend FIG 5 bereits das Magnetsystem der Auslöseeinrichtung 1 wieder in die Einschaltstellung durch Anlegen des Ankers 2 überführt wird. Die Klinke 9 hebt hierbei den Haltehebel 5 durch den Klinkenarm 25 in diese Position.In the switched-on position according to FIG. 2, the pawl 9 presses the Plunger 23 so that the switching paths in the auxiliary switch 6 getting closed. The holding lever 5 is from the hand control 4 released and is under the power of a weak Spring 34 on the magnet system of the trigger device 1, wherein the armature 2 against the force by electromagnetic forces a trigger spring 35 is held. The holding lever 5 is already with a handle position of about 60 ° of the manual control element 4, seen to the on position, from the Scenery 7 released and lies with closed switching paths in auxiliary switch 6 on armature 2. The anchor will already held by electromagnetic forces. This Switch position is shown in FIG 3. If already at Switching on according to FIG 3 an undervoltage occurs, the Anchor 2, as shown in FIG 4. The coupling link 15 is rotated clockwise so that in the unlatching device 3 released the latching point is and the pawl 9 with its engaging body 18 the driver 14 acts and him under the force of Pawl spring 26 rotated counterclockwise, whereby 5 already shows the magnet system of the triggering device 1 back to the on position by applying the Anchor 2 is transferred. The pawl 9 lifts the holding lever 5 by the latch arm 25 in this position.

    Der Unterspannungsauslöser nach FIG 1 ermöglicht die Ableitung eines Arbeitsstromauslösers nach FIG 6, bei dem der Haltehebel entfernt ist und das Magnetsystem der Auslöseeinrichtung 1 umgedreht montiert ist. Magnetsystem und Entklinkungseinrichtung 3 sind darauf abgestimmt, daß sie ohne Haltehebel im Einwirkungsbereich eines Stössels 36 des Magnetauslösers der Auslöseeinrichtung 1 bei angezogenem Anker 2 infolge eines Arbeitsstromes liegt. Bei einem derartigen Arbeitsstromauslöser kommt man mit den weiteren Bauteilen des Unterspannungsauslösers aus. Er kann als Fernschalter zur Fernauslösung mit dem Mitnehmer 14 gekoppelter seitlich angebauter Leitungsschutzschalter dienen.The undervoltage release according to FIG. 1 enables the derivation a shunt release according to FIG 6, in which the Holding lever is removed and the magnetic system of the release device 1 is mounted upside down. Magnet system and Unlatching device 3 are designed so that they without holding lever in the area of action of a plunger 36 of the Magnetic trigger of the trigger device 1 when tightened Armature 2 is due to a working current. At a such shunt releases come with the others Components of the undervoltage release. He can be as Remote switch for remote triggering with the driver 14 coupled side-mounted circuit breaker serve.

    Aus den FIG 7 bis 9, in denen jeweils ein Ausschnitt mit Handbedienungsglied 4, Klinke 9 und Mitnehmer 14 wiedergegeben ist, wird eine Steuerung des vom Kraftspeicher 26 der Klinke ausgeübten Drehmoments bei verschiedenen Griffstellungen des Handbedienungsgliedes 4 veranschaulicht. Die Klinke arbeitet mit dem Kraftspeicher 26 zusammen, der bezüglich seines Angriffpunktes 39 an der Klinke und bezüglich deren Lagerstelle 16 zum Handbedienungsglied 4 sowie bezüglich eines Hebelarmes 37 des Kraftspeichers, gebildet bis zum Angriffspunkt 39 des Kraftspeichers 26 an der Klinke, durch Abstimmen der Hebelarme 37 und 38 das Drehmoment in gewollter Weise von der Stellung des Handbedienungsgliedes 4 abhängig macht. Der Kraftspeicher 26 entfaltet beim Überführen der Klinke 9 in die Einschaltstellung zunächst einen überproportionalen nicht linearen Anstieg des Drehmomentes auf die Klinke. Wesentlich ist weiter, daß der Kraftspeicher 26 infolge der Bemessung des Abstandes der Lagerstelle 16 der Klinke von ihrer Verklinkungsstelle am Mitnehmer 14 in der Einschaltstellung verhältnismäßig geringe Kräfte auf die Verklinkungsstelle zur Wirkung bringt. Die Klinke 9 ist weiter darauf durch geeignete Formgebung und Anordnung abgestimmt, daß die Einwirkungsstelle 10 auf den Hilfsschalter beim Einschalten verhältnismäßig hohe Kräfte ausübt.7 to 9, in each of which a section with Hand control element 4, pawl 9 and driver 14 reproduced is a control of the energy storage 26 of the Pawl exerted torque in different handle positions of the hand control member 4 illustrated. The Pawl cooperates with the energy accumulator 26, which with respect its point of attack 39 on the jack and with respect their bearing 16 to the hand control member 4 and with respect a lever arm 37 of the energy accumulator, formed by Point of attack 39 of the energy accumulator 26 on the pawl Tuning the lever arms 37 and 38 the torque in desired Depending on the position of the hand control member 4 makes. The energy accumulator 26 unfolds when the Pawl 9 in the on position initially a disproportionate non-linear increase in torque on the Pawl. It is also important that the energy accumulator 26 due to the dimensioning of the distance between the bearing 16 Jack from their latching point on the driver 14 in the Switch-on position relatively low forces on the Latching point brings effect. The jack 9 is further on by suitable shaping and arrangement matched that the point of action 10 on the auxiliary switch exerts relatively high forces when switched on.

    Der Verlauf des Drehmomentes ist im Diagramm nach FIG 10 veranschaulicht. Auf der Abszisse sind von der Ausschaltstellung im Ursprung bis zur Einschaltstellung Winkelgrade des Griffs des Handbedienungsgliedes aufgetragen. Auf der Ordinate ist das Drehmoment aufgetragen. Die untere, nach rechts oben ansteigende Gerade zeigt den linearen Anstieg des Drehmomentes im Kraftspeicher 26. Darüber ist der nichtlineare Verlauf des Drehmomentes aufgetragen. Dadurch steht Energie für sichere Auslösevorgänge vor der Position der Verklinkung in der Einschaltstellung zur Verfügung. Die Winkel auf der Abszisse des Diagramms nach FIG 10 entsprechen der Auslenkung der Feder des Kraftspeichers 26 der Klinke.The torque curve is shown in the diagram in FIG. 10 illustrated. The abscissa are from the off position angular degrees in the origin up to the switch-on position applied to the handle of the hand control. On the The torque is plotted on the ordinate. The lower, after The straight line rising at the top right shows the linear rise of the Torque in the energy accumulator 26. Above that is the non-linear one The torque curve is plotted. This means Energy for safe tripping before the position of the Latching in the switch-on position available. The Correspond to angles on the abscissa of the diagram according to FIG. 10 the deflection of the spring of the energy accumulator 26 of the pawl.

    Die elektrische Beschaltung eines Unterspannungsauslösers 41 zusammen mit angereihten Niederspannungsschutzschaltern 40, beispielsweise Leitungsschutzschaltern, ist in FIG 11 für einen Anwendungsfall dargestellt. Zwei Schaltstrecken 42 und 43 des Hilfsschalters 6 sind wiedergegeben. Ein Wandler 44 sorgt im Ausführungsbeispiel dafür, daß die Auslöseeinrichtung 1 niedrigere Spannung als die Netzspannung erhält. Im Ausführungsbeispiel nach FIG 11 ist die Realisierung einer Not-Aus-Schaltung dargestellt. Bei geöffnetem Not-Aus-Schalter fällt der Unterspannungsauslöser ab, wodurch gekoppelte Niederspannungsschutzschalter 40 entklinkt werden und abschalten, so daß die Leitung unterbrochen wird. Der Not-Aus-Schalter ist mit 45 bezeichnet.The electrical wiring of an undervoltage release 41 together with adjacent low-voltage circuit breakers 40, for example circuit breakers, is in FIG 11 for presented a use case. Two switching paths 42 and 43 of the auxiliary switch 6 are shown. A converter 44 ensures in the embodiment that the triggering device 1 voltage lower than the mains voltage. in the 11 is the implementation of a Emergency stop circuit shown. With the emergency stop switch open the undervoltage release drops, causing coupled low-voltage circuit breaker 40 can be unlatched and switch off so that the line is interrupted. The Emergency stop switch is designated 45.

    Claims (9)

    1. Undervoltage release, particularly one capable of being coupled with low-voltage protective switches, whose electromagnetic tripping device (1) has a keeper (2) which operates on a disengaging device (3) when the voltage drops to undervoltage, such that its keeper (2) is placed against the magnet system of the tripping device (1) by means of a manual operating element (4) and a retaining lever (5) when the current is turned on, until, by switching on the power by means of an auxiliary switch (6), voltage which holds the keeper against the magnet system is applied in advance of an intended power-up of the system, characterised in that the retaining lever (5) is guided by a linkage (7) which is coupled with the manual operating element (4) until the keeper (2) is against the magnet system, while there is a release range (8) kinematically adjacent to the linkage (7), while the latch (9) of the disengaging device is shaped and/or positioned in such a way with respect to the auxiliary switch (6) and its construction that a point of influence (10) for operating the auxiliary switch (6) is formed, and that when the undervoltage release is in the power-on position at least one contact path (42, 43) of the auxiliary switch (6) is closed.
    2. Undervoltage release in accordance with Claim 1, characterised in that the latch (9) works together with an energy storage device (26); the latter's point of application (39) on the latch (9) and the latch's point of bearing (16) on the manual operating element (4), as well as a lever arm (37) of the energy storage device, formed up to the point of application (39) of the energy storage device on the latch, at first develop a disproportional non-linear increase in the torque on the latch when the latch (9) is moved to the power-on position; also in that the energy storage device (26), as a result of the dimension of the interval between the bearing point (16) of the latch and its latching point in the power-on position exerts relatively small forces on the latching point, while the latch (9) is arranged such that the point of influence (10) exerts relatively high forces on the auxiliary switch (6) when switching the power on.
    3. Undervoltage release in accordance with Claim 1 or 2, characterised in that the auxiliary switch (6) has two electrically parallel contact paths (42, 43) and is positioned on a carrier (13) which can be rotated at least for adjustment under the influence of the latch, with an adjusting arm (21) in contact with a repositionable adjusting system (22).
    4. Undervoltage release in accordance with one of Claims 1 to 3, characterised in that there are six connections (27, 28, 29, 30, 31, 32), two for the magnet system of the tripping device (1) and four for the auxiliary switch (6), where there are two connections (30, 32) at the input and two connections (29, 31) at the output of the auxiliary switch, and the auxiliary switch has two contact paths.
    5. Undervoltage release in accordance with one of Claims 1 to 4, characterised in that the magnet system is fed via a circuit (33) which rectifies the voltage and if necessary preprocesses it or converts it to different values.
    6. Undervoltage release in accordance with one of Claims 1 to 5, characterised in that the disengaging device is tailored so that it remains within the range of influence of its plunger without a retaining lever (5) when the magnet system is arranged in the reverse orientation.
    7. Undervoltage release in accordance with Claim 3, characterised in that the bearing point (22) for the adjusting arm (21) is formed by a headless setscrew which is driven into a gap in the housing, cutting its own way.
    8. Undervoltage release in accordance with one of Claims 1 to 5, characterised in that the auxiliary switch (6) is realised with contact paths in accordance with the principle of a snap-action switch whose point of influence with respect to the latch is realised as a plunger (23) whose depth of entry controls the position of the snap-action switch.
    9. Undervoltage release in accordance with one of Claims 1 to 5, characterised in that the linkage (7) for the retaining lever (5) in the manual operating element (4) is designed as a roller with the bearing point (11) of the manual operating element as a curved path along one sector.
    EP96109274A 1996-06-10 1996-06-10 Undervoltage release device Expired - Lifetime EP0813219B1 (en)

    Priority Applications (4)

    Application Number Priority Date Filing Date Title
    AT96109274T ATE209828T1 (en) 1996-06-10 1996-06-10 UNDERVOLTAGE RELEASE
    DE59608320T DE59608320D1 (en) 1996-06-10 1996-06-10 Undervoltage release
    EP96109274A EP0813219B1 (en) 1996-06-10 1996-06-10 Undervoltage release device
    TR97/00468A TR199700468A1 (en) 1996-06-10 1997-06-05 Low voltage release mode.

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP96109274A EP0813219B1 (en) 1996-06-10 1996-06-10 Undervoltage release device

    Publications (2)

    Publication Number Publication Date
    EP0813219A1 EP0813219A1 (en) 1997-12-17
    EP0813219B1 true EP0813219B1 (en) 2001-11-28

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96109274A Expired - Lifetime EP0813219B1 (en) 1996-06-10 1996-06-10 Undervoltage release device

    Country Status (4)

    Country Link
    EP (1) EP0813219B1 (en)
    AT (1) ATE209828T1 (en)
    DE (1) DE59608320D1 (en)
    TR (1) TR199700468A1 (en)

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19836828A1 (en) * 1998-08-13 2000-02-17 Siemens Ag Undervoltage release
    JP2002324477A (en) * 2001-04-27 2002-11-08 Fuji Electric Co Ltd Undervoltage trip device with quick close auxiliary switch for circuit breaker
    JP4333060B2 (en) * 2001-08-06 2009-09-16 富士電機機器制御株式会社 Protective switch
    JP4110769B2 (en) * 2001-08-27 2008-07-02 三菱電機株式会社 Circuit breaker
    JP4032693B2 (en) * 2001-10-19 2008-01-16 富士電機機器制御株式会社 Undervoltage trip device with early-turn auxiliary switch for circuit breaker
    US7557681B2 (en) * 2007-04-09 2009-07-07 Eaton Corporation Electrical switching apparatus accessory sub-assembly employing reversible coil frame, and accessory and electrical switching apparatus employing the same
    US20090256664A1 (en) * 2008-04-15 2009-10-15 Mahesh Jaywant Rane Solenoid switch and cover
    DE102009007586A1 (en) 2009-02-05 2010-08-19 Saia-Burgess Dresden Gmbh Tripping device, in particular for circuit breakers
    FR2961343B1 (en) * 2010-06-15 2012-06-08 Schneider Electric Ind Sas AUXILIARY RELEASE DEVICE FOR ASSOCIATED WITH A CIRCUIT BREAKER.
    DE102010032030B4 (en) * 2010-07-21 2022-06-30 Siemens Aktiengesellschaft Electrical switch
    EP4428893A1 (en) * 2023-03-06 2024-09-11 Hitachi Energy Ltd Operating mechanism for zero volt coil spring in circuit breaker

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3114717C2 (en) * 1981-04-11 1987-04-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Undervoltage release for a circuit breaker
    DE3308437A1 (en) * 1983-03-10 1984-09-13 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn Under-voltage trip device for electrical low-voltage protection circuit breakers
    FR2628262B1 (en) * 1988-03-04 1995-05-12 Merlin Gerin CONTROL MECHANISM OF A TRIGGERING AUXILIARY BLOCK FOR MODULAR CIRCUIT BREAKER
    DE4341214C2 (en) * 1993-12-03 1996-11-07 Kloeckner Moeller Gmbh Tripping unit for circuit breakers or circuit breakers

    Also Published As

    Publication number Publication date
    EP0813219A1 (en) 1997-12-17
    ATE209828T1 (en) 2001-12-15
    DE59608320D1 (en) 2002-01-10
    TR199700468A1 (en) 1997-12-21

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