EP0367102A2 - Short circuit indicator - Google Patents

Short circuit indicator Download PDF

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Publication number
EP0367102A2
EP0367102A2 EP89119880A EP89119880A EP0367102A2 EP 0367102 A2 EP0367102 A2 EP 0367102A2 EP 89119880 A EP89119880 A EP 89119880A EP 89119880 A EP89119880 A EP 89119880A EP 0367102 A2 EP0367102 A2 EP 0367102A2
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EP
European Patent Office
Prior art keywords
slide
short
switch
trigger
circuit
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
EP89119880A
Other languages
German (de)
French (fr)
Other versions
EP0367102B1 (en
EP0367102A3 (en
Inventor
Werner Dipl.-Ing. Kannaneck
Thomas Scholz
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller Elektrizitaets GmbH
Kloeckner Moeller GmbH
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Publication date
Application filed by Kloeckner Moeller Elektrizitaets GmbH, Kloeckner Moeller GmbH filed Critical Kloeckner Moeller Elektrizitaets GmbH
Publication of EP0367102A2 publication Critical patent/EP0367102A2/en
Publication of EP0367102A3 publication Critical patent/EP0367102A3/en
Application granted granted Critical
Publication of EP0367102B1 publication Critical patent/EP0367102B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing

Definitions

  • the invention relates to a short-circuit detector for signaling overcurrent and short-circuit tripping, preferably in conjunction with a circuit breaker or motor protection switch, and the function of a short-circuit lock by manual reset on site.
  • short-circuit detectors particularly if they are connected to a circuit breaker or motor protection switch, switch both in the event of a short-circuit and in the event of an overcurrent, it is important to be able to recognize the type of tripping from the outside, the short-circuit detector only detecting overcurrents above the approx. times the nominal current.
  • a separate auxiliary switch can be assigned to each locking lever in such a circuit breaker.
  • the invention has for its object to improve a short-circuit detector according to the preamble of claim 1 so that a high level of functions is achieved by a simple structure and the short-circuit display and the resetting can be done by hand with a single indicator plunger.
  • the reset button of the short-circuit detector is connected to a switch-on slide, which is operatively connected via a deflection lever to a trigger-blocking slide which can be displaced in parallel with it, which can be displaced in the triggering direction of a triggering device of the circuit breaker or motor-protective circuit-breaker and via a trigger pin with this triggering device in the triggering direction in a positive manner is connected, there is a particularly compact design of such a short-circuit detector, since the switch-on slide and the combined trigger-lock slide can be arranged directly next to one another in the switch housing.
  • a particularly reliable functioning of such a short-circuit detector is also achieved by the deflection lever, and it is also possible to arrange a test opening in the axial extension of the trigger slide on the front narrow side of the switch housing directly next to the reset button, through which the trigger slide by means of a pointed object, such as a Screwdriver or the like, even without a short circuit tripping and without the circuit breaker or motor protection switch to which the short-circuit detector is connected being supplied with current can be triggered purely mechanically by hand for test purposes.
  • a pointed object such as a Screwdriver or the like
  • the short-circuit detector 1 can, as shown in Fig. 1, be laterally attached to a circuit breaker or motor protection switch 2 such that it is in operative connection with a laterally protruding tripping pin 3 with a release device 4 on the circuit breaker or motor protection switch 2, which at a short-circuit or overcurrent triggering of the circuit breaker or motor protection switch 2 is moved in the triggering direction of the short-circuit detector 1.
  • the short-circuit detector 1 has a manually operated reset button 5, which is arranged sunk in a recess 8 on the front narrow side 6 of the switch housing 7 such that it does not protrude beyond the level of the narrow side 6 of the housing and this level even in the OFF position thus is not interrupted by the reset button 5 even in the OFF position shown in FIGS. 1 and 4.
  • the short-circuit detector 1 has a switch-on slide 9 which can be operated manually via the reset button 5 and which is operatively connected via a bell crank 10 to a combined trigger-lock slide 11 which can be displaced in parallel therewith stands, which is displaceable in the direction of displacement 12 (FIG. 4) of the tripping device 4 of the circuit breaker or motor protection switch 2 and is positively connected to this tripping device 4 in the tripping direction 12 via a tripping pin 3.
  • the bell crank 10 is designed as a rocker such that the switch-on slide 9 and the combined trigger-lock slide 11 can be moved in opposite directions parallel to one another. It is pivotally mounted between the switch-on slide 9 and the parallel trigger-lock slide 11 about a pivot pin 10a fixed to the housing and is pivotably connected to the switch-on slide 9 as well as to the trigger-block valve 11 via slot-and-pin connections with play.
  • the deflection lever 10 has two oblong holes 10b, 10c, which run parallel to one another in relation to its longitudinal axis, for the engagement of two driving pins 9a, 11a, which project to the side from the switch-on slide 9 and from the release lock slide 11.
  • the combined trigger-blocking slide 11 is formed in two parts and consists of a on the switch housing 7 in lateral parallel guides 13 parallel to the switch-on slide About 9 displaceable trigger slide 14 and a locking slide 16 telescopically displaceable therebetween between lateral guide cheeks 15, which is in the ON position of the trigger slide 14 in a first locking position, from which it can be moved into a position after releasing a lock by moving the trigger slide 14 , in which the switch-on slide 9 has been moved via the switch lever 10 from its ON position shown in FIGS. 2 and 3 to its OFF position in FIG. 4.
  • the trigger slide 14 on the housing 7 of the short-circuit detector 1 is guided in the triggering direction 12 of the triggering device 4 on the associated circuit breaker 1 and engages with its trigger pin 3, which passes through the housing walls 7a, 2a of the switches 1, 2 mounted directly next to one another in elongated holes 3a, 3b into a recess 4a on the triggering device 4 of the circuit breaker or motor protection switch 2.
  • the locking slide 16 of the short-circuit detector 1 is displaceably arranged in the triggering direction 12 of the trigger slide 14 in its axial extension or coaxially to the trigger slide 14 in the switch housing 7 and engages with a pawl 17 which rests transversely to the triggering direction 12 and counteracts a web-shaped abutment 18 on the switch housing 7 the triggering direction 12 locking hook-shaped.
  • the web-shaped abutment 18 is formed in the embodiment shown from the edge of the recess or opening 19 for the trigger pin 3, which protrudes laterally from the trigger slide 14 of the short-circuit detector 1 and is in operative connection with the trigger device 4 on the power or motor protection switch 2.
  • the trigger slide 14 and the pawl 17 on the locking slide 16 have transverse to the triggering direction 12 of the short-circuit detector 1 parallel inclined surfaces 20, 21 which are inclined so that the pawl 17 is pushed aside when the trigger slide 14 is moved and with it Locking lug is released from the abutment web 18 or from the lower edge of the recess 19 on the switch housing 7, so that the locking slide 16 together with the release slide 14 can reach the OFF position of the short-circuit detector 1 from FIG. 4.
  • the locking slide 16 is also under the action of a tension spring 22, which moves it after releasing the lock due to the displacement of the trigger slide 14 together with the bell crank 10 in the switch-off position and holds it in this position until it is actuated by the reset button 5 via the switch-on slide 9 and the bell crank 10 has been moved back into its locking position of FIGS. 2 and 3.
  • a test opening 24 is arranged in the axial extension of the trigger slide 14 on the front narrow side 6 of the switch housing 7, through which the trigger slide 14 is by means of a sharp object, such as a screwdriver or the like, even without a short-circuit release and without the circuit breaker or motor protection switch 2, with which the short-circuit detector 1 is connected, supplied with current, can be triggered purely mechanically by hand for test purposes.
  • the switch-on slide 9 is connected to at least two counter-acting auxiliary switches, a break contact 25 and a make contact 26.

Abstract

Since such short-circuit indicators are triggered, particularly if they are connected to a circuit-breaker or motor protection switch, both in the case of a short-circuit and in the case of overcurrent, it is important to be able to detect the trigger type from the outside without having to open the switch. This is achieved in a simple construction, and with a high level of functions, in a particularly advantageous manner in that the reset button (5) of the short-circuit indicator (1) is connected to a switch-on slide element (9) which interacts via a shift lever (10) with a trigger locking slide element (11) which is displaceable parallel thereto, and which can be displaced in the trigger direction (12) of a triggering device (4) of the circuit-breaker or motor protection switch (1), and which is positively connected to this trigger device (4) in the triggering direction via a trigger pin (5). For test purposes, the trigger slide element (14) can be triggered purely mechanically by hand by means of a pointed object, such as a screw- driver or the like, through a test opening (24) in axial extension of the trigger element slide (14) on the front narrow side (6) of the switch housing (7), even without triggering a short-circuit and without the circuit-breaker or motor protection switch (2), to which the short-circuit indicator (1) is connected, being subjected to current. <IMAGE>

Description

Die Erfindung betrifft einen Kurzschlußmelder zur Signalisie­rung von Überstrom- und Kurzschlußauslösung, vorzugsweise in Verbindung mit einem Leistungs- oder Motorschutzschalter, und Funktion einer Kurzschlußsperre durch Rückstellung von Hand vor Ort.The invention relates to a short-circuit detector for signaling overcurrent and short-circuit tripping, preferably in conjunction with a circuit breaker or motor protection switch, and the function of a short-circuit lock by manual reset on site.

Da solche Kurzschlußmelder, insbesondere wenn sie mit einem Leistungs- oder Motorschutzschalter verbunden sind, sowohl bei einem Kurzschluß als auch bei einem Überstrom schalten, ist es wichtig, die Auslösungsart von außen erkennen zu kön­nen, wobei der Kurzschlußmelder erst auf Überströme oberhalb des etwa 16-fachen Nennstromes reagieren soll.Since such short-circuit detectors, particularly if they are connected to a circuit breaker or motor protection switch, switch both in the event of a short-circuit and in the event of an overcurrent, it is important to be able to recognize the type of tripping from the outside, the short-circuit detector only detecting overcurrents above the approx. times the nominal current.

Dies wird bei einem bekannten Schutzschalter mit Überstrom- und Kurzschlußauslösevorrichtung, die mit einem Hilfsschalter in Wirkverbindung steht und in der ausgelösten Stellung ver­riegelt gehalten ist (DE-OS 34 02 850), dadurch erreicht, daß für Kurzschluß- und Überstromauslösung getrennte Auslöse­wellen mit getrennten, mit dem Hilfsschalter in Wirkverbin­dung stehenden Verriegelungshebeln vorgesehen sind, die ihrer­seits mit getrennten Anzeige- und Rückstellstößeln in Wirk­verbindung stehen.This is achieved in a known circuit breaker with overcurrent and short-circuit tripping device which is operatively connected to an auxiliary switch and is locked in the tripped position (DE-OS 34 02 850), in that separate tripping shafts with separate, interlocking levers which are in operative connection with the auxiliary switch are provided, which in turn are operatively connected to separate display and reset plungers.

Um auch beispielsweise in einer zentralen Leitstelle die Un­terscheidung vornehmen zu können, kann bei einem solchen Schutzschalter jedem Verriegelungshebel ein getrennter Hilfs­schalter zugeordnet sein.In order to be able to make the distinction in a central control center, for example, a separate auxiliary switch can be assigned to each locking lever in such a circuit breaker.

Der Erfindung liegt die Aufgabe zugrunde, einen Kurzschluß­melder nach dem Oberbegriff des Ansprüches 1 dahingehend zu verbessern, daß durch einen einfachen Aufbau ein hohes Maß an Funktionen erreicht wird und die Kurzschlußanzeige und die Rückstellung von Hand durch einen einzigen Indikatorstößel erfolgen können.The invention has for its object to improve a short-circuit detector according to the preamble of claim 1 so that a high level of functions is achieved by a simple structure and the short-circuit display and the resetting can be done by hand with a single indicator plunger.

Diese Aufgabe wird gemäß der Erfindung durch den Kennzeich­nungsteil des Ansprüches 1 gelöst, während in den Ansprüchen 2 bis 13 besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.This object is achieved according to the invention by the characterizing part of claim 1, while particularly advantageous developments of the invention are characterized in claims 2 to 13.

Dadurch, daß der Rückstellknopf des Kurzschlußmelders mit ei­nem Einschaltschieber verbunden ist, der über einen Umlenkhe­bel mit einem dazu parallel verschiebbaren Auslöse-Sperr­schieber in Wirkverbindung steht, der in Auslöserichtung ei­ner Auslösevorrichtung des Leistungs- oder Motorschutzschal­ters verschiebbar und über einen Auslösezapfen mit dieser Auslösevorrichtung in Auslöserichtung formschlüssig verbunden ist, ergibt sich eine besonders kompakte Bauweise eines sol­chen Kurzschlußmelders, da der Einschaltschieber und der kom­binierte Auslöse-Sperrschieber im Schaltergehäuse unmittelbar nebeneinander angeordnet werden können. Auch wird durch den Umlenkhebel eine besonders zuverlässige Funktionsweise eines solchen Kurzschlußmelders erreicht, und es ist außerdem die Anordnung einer Testöffnung in axialer Verlängerung des Aus­löseschiebers an der vorderen Schmalseite des Schaltergehäu­ses unmittelbar neben dem Rückstellknopf möglich, durch die der Auslöseschieber mittels eines spitzen Gegenstandes, wie ein Schraubendreher oder dergleichen, auch ohne Kurzschluß­ auslösung und ohne daß der Leistungs- oder Motorschutzschal­ter, mit dem der Kurzschlußmelder verbunden ist, mit Strom beaufschlagt wird, für Testzwecke von Hand rein mechanisch ausgelöst werden kann.Characterized in that the reset button of the short-circuit detector is connected to a switch-on slide, which is operatively connected via a deflection lever to a trigger-blocking slide which can be displaced in parallel with it, which can be displaced in the triggering direction of a triggering device of the circuit breaker or motor-protective circuit-breaker and via a trigger pin with this triggering device in the triggering direction in a positive manner is connected, there is a particularly compact design of such a short-circuit detector, since the switch-on slide and the combined trigger-lock slide can be arranged directly next to one another in the switch housing. A particularly reliable functioning of such a short-circuit detector is also achieved by the deflection lever, and it is also possible to arrange a test opening in the axial extension of the trigger slide on the front narrow side of the switch housing directly next to the reset button, through which the trigger slide by means of a pointed object, such as a Screwdriver or the like, even without a short circuit tripping and without the circuit breaker or motor protection switch to which the short-circuit detector is connected being supplied with current can be triggered purely mechanically by hand for test purposes.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt. Es zeigen

  • Fig. 1 einen an einen Leistungs- oder Motorschutzschalter anbaubaren Kurzschlußmelder in perspektivischer An­sicht,
  • Fig. 2 eine Innenansicht des Kurzschlußmelders bei abge­nommenem Gehäusedeckel,
  • Fig. 3 einen Teilschnitt durch den Kurzschlußmelder gemäß Schnittlinie III - III von Fig. 2 in EIN-Stellung, wobei der Kurzschlußmelder in Verbindung mit einem Leistungs- oder Motorschutzschalter dargestellt ist, und
  • Fig. 4 ebenfalls einen Teilschnitt durch die Schalterkom­bination in AUS-Stellung.
A preferred embodiment of the invention is shown schematically in the drawing. Show it
  • 1 a short-circuit detector which can be attached to a circuit breaker or motor protection switch, in a perspective view,
  • 2 shows an inside view of the short-circuit detector with the housing cover removed,
  • Fig. 3 is a partial section through the short-circuit detector according to section line III - III of Fig. 2 in the ON position, the short-circuit detector is shown in connection with a circuit breaker or motor protection switch, and
  • Fig. 4 also a partial section through the switch combination in the OFF position.

Der Kurzschlußmelder 1 kann, wie in Fig. 1 gezeigt ist, seit­lich an einen Leistungs- oder Motorschutzschalter 2 derart angebaut werden, daß er mit einem seitlich hervorstehenden Auslösezapfen 3 in Wirkverbindung mit einer Auslösevorrich­tung 4 an dem Leistungs- oder Motorschutzschalter 2 steht, die bei einer Kurzschluß- oder Überstromauslösung des Lei­stungs- oder Motorschutzschalters 2 in Auslöserichtung des Kurzschlußmelders 1 verschoben wird.The short-circuit detector 1 can, as shown in Fig. 1, be laterally attached to a circuit breaker or motor protection switch 2 such that it is in operative connection with a laterally protruding tripping pin 3 with a release device 4 on the circuit breaker or motor protection switch 2, which at a short-circuit or overcurrent triggering of the circuit breaker or motor protection switch 2 is moved in the triggering direction of the short-circuit detector 1.

Der Kurzschlußmelder 1 weist einen von Hand zu betätigenden Rückstellknopf 5 auf, der an der vorderen Schmalseite 6 des Schaltergehäuses 7 in einer Vertiefung 8 derart versenkt an­geordnet ist, daß er auch in der AUS-Stellung nicht über die Ebene der Gehäuseschmalseite 6 hervorsteht und diese Ebene somit durch den Rückstellknopf 5 auch in der in Fig. 1 und 4 gezeigten AUS-Stellung nicht unterbrochen wird.The short-circuit detector 1 has a manually operated reset button 5, which is arranged sunk in a recess 8 on the front narrow side 6 of the switch housing 7 such that it does not protrude beyond the level of the narrow side 6 of the housing and this level even in the OFF position thus is not interrupted by the reset button 5 even in the OFF position shown in FIGS. 1 and 4.

Wie anhand der Darstellungen von Fig. 2 bis 4 im einzelnen zu erkennen ist, weist der Kurzschlußmelder 1 einen über den Rückstellknopf 5 von Hand zu betätigenden Einschaltschieber 9 auf, der über einen Umlenkhebel 10 mit einem dazu parallel verschiebbaren kombinierten Auslöse-Sperrschieber 11 in Wirk­verbindung steht, der in Verschieberichtung 12 (Fig. 4) der Auslösevorrichtung 4 des Leistungs- oder Motorschutzschalters 2 verschiebbar ist und über einen Auslösezapfen 3 mit dieser Auslösevorrichtung 4 in Auslöserichtung 12 formschlüssig ver­bunden ist.As can be seen in detail from the representations of FIGS. 2 to 4, the short-circuit detector 1 has a switch-on slide 9 which can be operated manually via the reset button 5 and which is operatively connected via a bell crank 10 to a combined trigger-lock slide 11 which can be displaced in parallel therewith stands, which is displaceable in the direction of displacement 12 (FIG. 4) of the tripping device 4 of the circuit breaker or motor protection switch 2 and is positively connected to this tripping device 4 in the tripping direction 12 via a tripping pin 3.

Der Umlenkhebel 10 ist als Wippe derart ausgebildet, daß der Einschaltschieber 9 und der kombinierte Auslöse-Sperrschieber 11 parallel zueinander gegenläufig bewegbar sind. Er ist zwi­schen dem Einschaltschieber 9 und dem dazu parallelen Auslöse-­Sperrschieber 11 um einen gehäusefesten Drehzapfen 10a schwenkbar gelagert und sowohl mit dem Einschaltschieber 9 als auch mit dem Auslöse-Sperrschieber 11 über Langloch-­Zapfen-Verbindungen mit Spiel schwenkbar verbunden. Der Umlenkhebel 10 weist zwei schräg zu seiner Längsachse parallel zueinander verlaufende Langlöcher 10b, 10c für den Eingriff von zwei Mitnahmezapfen 9a, 11a auf, die von dem Einschalt­schieber 9 und von dem Auslöse-Sperrschieber 11 zur Seite hervorstehen.The bell crank 10 is designed as a rocker such that the switch-on slide 9 and the combined trigger-lock slide 11 can be moved in opposite directions parallel to one another. It is pivotally mounted between the switch-on slide 9 and the parallel trigger-lock slide 11 about a pivot pin 10a fixed to the housing and is pivotably connected to the switch-on slide 9 as well as to the trigger-block valve 11 via slot-and-pin connections with play. The deflection lever 10 has two oblong holes 10b, 10c, which run parallel to one another in relation to its longitudinal axis, for the engagement of two driving pins 9a, 11a, which project to the side from the switch-on slide 9 and from the release lock slide 11.

Der kombinierte Auslöse-Sperrschieber 11 ist zweiteilig aus­gebildet und besteht aus einem am Schaltergehäuse 7 in seit­lichen Parallelführungen 13 parallel zu dem Einschaltschie­ ber 9 verschiebbaren Auslöseschieber 14 und einem daran zwi­schen seitlichen Führungswangen 15 teleskopartig verschieb­baren Verriegelungsschieber 16, der sich in der EIN-Stellung des Auslöseschiebers 14 in einer ersten Verriegelungsstellung befindet, aus der er nach Lösen einer Sperre durch Verlage­rung des Auslöseschiebers 14 in eine Stellung bewegbar ist, in der der Einschaltschieber 9 über den Umschalthebel 10 von seiner in Fig. 2 und 3 gezeigten EIN-Stellung in seine AUS-Stellung von Fig. 4 bewegt worden ist.The combined trigger-blocking slide 11 is formed in two parts and consists of a on the switch housing 7 in lateral parallel guides 13 parallel to the switch-on slide About 9 displaceable trigger slide 14 and a locking slide 16 telescopically displaceable therebetween between lateral guide cheeks 15, which is in the ON position of the trigger slide 14 in a first locking position, from which it can be moved into a position after releasing a lock by moving the trigger slide 14 , in which the switch-on slide 9 has been moved via the switch lever 10 from its ON position shown in FIGS. 2 and 3 to its OFF position in FIG. 4.

Wie in den Darstellungen von Fig. 2 bis 4 im einzelnen zu er­kennen ist, ist der Auslöseschieber 14 am Gehäuse 7 des Kurz­schlußmelders 1 in Auslöserichtung 12 der Auslösevorrichtung 4 an dem zugehörigen Leistungs- oder Motorschutzschalter 1 längsverschiebbar geführt und greift mit seinem Auslösezapfen 3, der die Gehäusewandungen 7a, 2a der unmittelbar nebenein­ander montierten Schalter 1, 2 in Langlöchern 3a, 3b durch­greift, in eine Aussparung 4a an der Auslösevorrichtung 4 des Leistungs- oder Motorschutzschalters 2 formschlüssig ein.As can be seen in the illustrations of FIGS. 2 to 4 in detail, the trigger slide 14 on the housing 7 of the short-circuit detector 1 is guided in the triggering direction 12 of the triggering device 4 on the associated circuit breaker 1 and engages with its trigger pin 3, which passes through the housing walls 7a, 2a of the switches 1, 2 mounted directly next to one another in elongated holes 3a, 3b into a recess 4a on the triggering device 4 of the circuit breaker or motor protection switch 2.

Der Verriegelungsschieber 16 des Kurzschlußmelders 1 ist in Auslöserichtung 12 des Auslöseschiebers 14 in dessen axialer Verlängerung bzw. koaxial zu dem Auslöseschieber 14 im Schal­tergehäuse 7 verschiebbar angeordnet und hintergreift mit ei­ner quer zur Auslöserichtung 12 federnd auslenkbaren Sperr­klinke 17 ein stegförmiges Widerlager 18 an dem Schalterge­häuse 7 entgegen der Auslöserichtung 12 hakenförmig sperrend. Das stegförmige Widerlager 18 wird beim gezeigten Ausfüh­rungsbeispiel vom Rand der Aussparung oder Öffnung 19 für den Auslösezapfen 3 gebildet, der von dem Auslöseschieber 14 des Kurzschlußmelders 1 seitlich hervorsteht und mit der Auslöse­vorrichtung 4 an dem Leistungs- oder Motorschutzschalter 2 in Wirkverbindung steht.The locking slide 16 of the short-circuit detector 1 is displaceably arranged in the triggering direction 12 of the trigger slide 14 in its axial extension or coaxially to the trigger slide 14 in the switch housing 7 and engages with a pawl 17 which rests transversely to the triggering direction 12 and counteracts a web-shaped abutment 18 on the switch housing 7 the triggering direction 12 locking hook-shaped. The web-shaped abutment 18 is formed in the embodiment shown from the edge of the recess or opening 19 for the trigger pin 3, which protrudes laterally from the trigger slide 14 of the short-circuit detector 1 and is in operative connection with the trigger device 4 on the power or motor protection switch 2.

Der Auslöseschieber 14 und die Sperrklinke 17 an dem Verrie­gelungsschieber 16 weisen quer zur Auslöserichtung 12 des Kurzschlußmelders 1 parallel zueinander verlaufende Schräg­flächen 20, 21 auf, die derart geneigt sind, daß die Sperr­klinke 17 bei der Verlagerung des Auslöseschiebers 14 zur Seite weggedrückt wird und mit ihrer Sperrnase von dem Wider­lagersteg 18 bzw. vom unteren Rand der Aussparung 19 an dem Schaltergehäuse 7 freikommt, so daß der Verriegelungsschieber 16 zusammen mit dem Auslöseschieber 14 in die AUS-Stellung des Kurzschlußmelders 1 von Fig. 4 gelangen kann.The trigger slide 14 and the pawl 17 on the locking slide 16 have transverse to the triggering direction 12 of the short-circuit detector 1 parallel inclined surfaces 20, 21 which are inclined so that the pawl 17 is pushed aside when the trigger slide 14 is moved and with it Locking lug is released from the abutment web 18 or from the lower edge of the recess 19 on the switch housing 7, so that the locking slide 16 together with the release slide 14 can reach the OFF position of the short-circuit detector 1 from FIG. 4.

Der Verriegelungsschieber 16 steht auch unter der Wirkung einer Zugfeder 22, die ihn nach Lösen der Sperre infolge Verlagerung des Auslöseschiebers 14 zusammen mit dem Umlenk­hebel 10 in die Ausschaltstellung bewegt und in dieser so lange festhält, bis er durch Betätigung des Rückstellknopfes 5 über den Einschaltschieber 9 und den Umlenkhebel 10 wieder in seine Verriegelungsstellung von Fig. 2 und 3 zurückbewegt worden ist.The locking slide 16 is also under the action of a tension spring 22, which moves it after releasing the lock due to the displacement of the trigger slide 14 together with the bell crank 10 in the switch-off position and holds it in this position until it is actuated by the reset button 5 via the switch-on slide 9 and the bell crank 10 has been moved back into its locking position of FIGS. 2 and 3.

Zwischen dem Auslöseschieber 14 und dem Verriegelungsschieber 16 ist eine beide Schieber in Auslöserichtung 12 auseinander­drückende Schraubendruckfeder 23 angeordnet, durch die der Verriegelungsschieber 16 zusätzlich zu der an ihm angreifen­den Zugfeder 22 nach einer Auslösung ebenso wie der durch den wippenförmigen Umlenkhebel 10 mit ihm verbundene Einschalt­schieber 9 so lange in der in Fig. 4 gezeigten AUS-Stellung gehalten wird, bis die Kurzschlußsperre durch Betätigung des Rückstellknopfes 5 von Hand wieder aufgehoben wird.Between the trigger slide 14 and the locking slide 16 there is a compression spring 23 which pushes both slides apart in the triggering direction 12, by means of which the locking slide 16 in addition to the tension spring 22 acting on it after a release, as well as the switch-on slide 9 connected to it by the rocker-shaped bell crank 10 is held in the OFF position shown in FIG. 4 until the short-circuit lock is released again by pressing the reset button 5 by hand.

Wie anhand von Fig. 2 weiterhin zu erkennen ist, ist in axialer Verlängerung des Auslöseschiebers 14 an der vorderen Schmalseite 6 des Schaltergehäuses 7 eine Testöffnung 24 angeordnet, durch die der Auslöseschieber 14 mittels eines spitzen Gegenstandes, wie ein Schraubendreher oder derglei­chen, auch ohne Kurzschlußauslösung und ohne daß der Lei­stungs- oder Motorschutzschalter 2, mit dem der Kurzschluß­melder 1 verbunden ist, mit Strom beaufschlagt wird, für Testzwecke von Hand rein mechanisch ausgelöst werden kann.As can also be seen from FIG. 2, a test opening 24 is arranged in the axial extension of the trigger slide 14 on the front narrow side 6 of the switch housing 7, through which the trigger slide 14 is by means of a sharp object, such as a screwdriver or the like, even without a short-circuit release and without the circuit breaker or motor protection switch 2, with which the short-circuit detector 1 is connected, supplied with current, can be triggered purely mechanically by hand for test purposes.

Für eine Fernanzeige beispielsweise in einer Leitzentrale ist der Einschaltschieber 9 mit mindestens zwei gegenläufig wirk­samen Hilfsschaltern, einem Öffner 25 und einem Schließer 26, verbunden.For remote display, for example in a control center, the switch-on slide 9 is connected to at least two counter-acting auxiliary switches, a break contact 25 and a make contact 26.

Claims (13)

1. Kurzschlußmelder zur Signalisierung von Überstrom- und Kurzschlußauslösung, vorzugsweise in Verbindung mit ei­nem Leistungs- oder Motorschutzschalter, und Funktion einer Kurzschlußsperre mit einem Rückstellknopf zur Rückstellung des Schalters von Hand vor Ort, da­durch gekennzeichnet, daß der Rück­stellknopf (5) mit einem Einschaltschieber (9) verbunden ist, der über einen Umlenkhebel (10) mit einem dazu par­allel verschiebbaren Auslöse-Sperrschieber (11) in Wirk­verbindung steht, der in Auslöserichtung (12) einer Aus­lösevorrichtung (4) des Leistungs- oder Motorschutz­schalters (1) verschiebbar ist und über einen Auslöse­zapfen (5) mit dieser Auslösevorrichtung (4) in Auslöse­richtung (12) formschlüssig verbunden ist.1. Short-circuit detector for signaling overcurrent and short-circuit tripping, preferably in conjunction with a circuit breaker or motor protection switch, and function of a short-circuit lock with a reset button for resetting the switch by hand on site, characterized in that the reset button (5) with a switch-on slide ( 9), which is connected via a bellcrank (10) to a parallel locking slide (11) which is displaceable in the triggering direction (12) of a triggering device (4) of the circuit breaker or motor protection switch (1) and via a release pin (5) is positively connected to this release device (4) in the release direction (12). 2. Kurzschlußmelder nach Anspruch 1, dadurch ge­kennzeichnet, daß der Umlenkhebel (10) als Wippe derart ausgebildet ist, daß der Einschaltschieber (9) und der Auslöse-Sperrschieber (11) zueinander gegen­läufig bewegbar sind.2. Short-circuit detector according to claim 1, characterized in that the deflection lever (10) is designed as a rocker in such a way that the switch-on slide (9) and the trigger-blocking slide (11) can be moved in opposite directions to one another. 3. Kurzschlußmelder nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Umlenkhebel (10) zwischen dem Einschaltschieber (9) und dem dazu paralle­len Auslöse-Sperrschieber (11) um einen gehäusefesten Drehzapfen (10a) schwenkbar gelagert ist und sowohl mit dem Einschaltschieber (9) als auch mit dem Auslöse-­Sperrschieber (11) über Langloch-Zapfen-Verbindungen mit Spiel schwenkbar verbunden ist.3. Short-circuit detector according to claim 1 and 2, characterized in that the deflection lever (10) between the switch slide (9) and the parallel trigger-lock slide (11) about a housing-fixed pivot (10 a) is pivotally mounted and both with the switch slide ( 9) as well as with the release locking slide (11) via slot pin connections with play pivotally connected. 4. Kurzschlußmelder nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Umlenkhebel (10) zwei schräg zu seiner Längsachse parallel zueinander verlaufende Langlöcher (10b, 10c) für den Eingriff von zwei Mitnahmezapfen (9a, 11a) aufweist, die von dem Ein­schaltschieber (9) und von dem Auslöse-Sperrschieber (11) zur Seite hervorstehen.4. Short-circuit detector according to claim 1 to 3, characterized in that the deflection lever (10) has two obliquely parallel to its longitudinal axis elongated holes (10b, 10c) for the engagement of two driving pins (9a, 11a), which of the switch-on slide ( 9) and protrude from the release lock slide (11) to the side. 5. Kurzschlußmelder nach einem der Ansprüche 1 bis 4, da­durch gekennzeichnet, daß der Aus­löse-Sperrschieber (11) zweiteilig ausgebildet ist und aus einem Auslöseschieber (14) und einem daran teleskop­artig verschiebbaren Verriegelungsschieber (16) besteht, der mit dem Einschaltschieber (9) über den Umlenkhebel (10) verbunden ist und sich in der EIN-Stellung des Aus­löseschiebers (14) in einer ersten Verriegelungsstellung befindet, aus der er nach Lösen einer Sperre durch Ver­lagerung des Auslöseschiebers (14) in eine AUS-Stellung bewegbar ist, in der der Einschaltschieber (9) über den Umschalthebel (10) gleichzeitig von seiner EIN-Stellung in seine AUS-Stellung bewegt worden ist.5. Short-circuit detector according to one of claims 1 to 4, characterized in that the trigger blocking slide (11) is formed in two parts and consists of a trigger slide (14) and a telescopically displaceable locking slide (16) which with the switch-on slide (9) is connected via the bellcrank (10) and is in the ON position of the trigger slide (14) in a first locking position, from which it can be moved into an OFF position after releasing a lock by moving the trigger slide (14) the switch-on slide (9) has been simultaneously moved from its ON position to its OFF position via the switch lever (10). 6. Kurzschlußmelder nach einem der Ansprüche 1 bis 5, da­durch gekennzeichnet, daß der Aus­löseschieber (14) im Gehäuse (7) des Kurzschlußmelders (1) in Auslöserichtung (12) längsverschiebbar geführt ist und mit seinem Auslösezapfen (3), der die Gehäuse­wandungen der unmittelbar nebeneinander montierten Schalter (1, 2) durchgreift, in eine Aussparung (4a) an der Auslösevorrichtung (4) des Leistungs- oder Motor­schutzschalters (2) formschlüssig eingreift.6. Short-circuit detector according to one of claims 1 to 5, characterized in that the trigger slide (14) in the housing (7) of the short-circuit detector (1) in the trigger direction (12) guided longitudinally and with its release pin (3) which engages through the housing walls of the switches (1, 2) mounted directly next to one another, positively engages in a recess (4a) on the release device (4) of the circuit breaker or motor protection switch (2). 7. Kurzschlußmelder nach Anspruch 6, dadurch ge­kennzeichnet, daß der Verriegelungsschieber (16) in Auslöserichtung (12) des Auslöseschiebers (14) in dessen axialer Verlängerung bzw. koaxial zu dem Aus­löseschieber (14) im Schaltergehäuse (7) verschiebbar angeordnet ist und mit einer quer zur Auslöserichtung (12) federnd auslenkbaren Sperrklinke (17) ein stegför­miges Widerlager (18) an dem Schaltergehäuse (7) entge­gen der Auslöserichtung (12) hakenförmig sperrend hin­tergreift.7. Short-circuit detector according to claim 6, characterized in that the locking slide (16) in the triggering direction (12) of the trigger slide (14) in its axial extension or coaxially to the trigger slide (14) in the switch housing (7) is arranged displaceably and with one transversely to the release direction (12) spring-deflectable pawl (17) engages behind a web-shaped abutment (18) on the switch housing (7) against the release direction (12) in a hook-like manner. 8. Kurzschlußmelder nach Anspruch 6 und 7, dadurch gekennzeichnet, daß der Auslöseschieber (14) und die Sperrklinke (17) quer zur Auslöserichtung (12) parallel zueinander verlaufende Schrägflächen (20, 21) derart aufweisen, daß die Sperrklinke (17) bei der Verlagerung des Auslöseschiebers (14) von dem Widerla­gersteg (18) an dem Gehäuse (7) freikommt.8. Short-circuit detector according to claim 6 and 7, characterized in that the trigger slide (14) and the pawl (17) transverse to the triggering direction (12) parallel to each other inclined surfaces (20, 21) such that the pawl (17) at Relocation of the trigger slide (14) from the abutment web (18) on the housing (7) is released. 9. Kurzschlußmelder nach Anspruch 6 bis 8, dadurch gekennzeichnet, daß der Verriegelungs­schieber (16) unter der Wirkung einer Zugfeder (22) steht, die ihn nach Lösen der Sperre infolge Verlagerung des Auslöseschiebers (14) zusammen mit dem Umlenkhebel (10) in die AUS-Stellung bewegt und in dieser so lange festhält, bis er durch Betätigung des mit ihm verbunde­nen Einschaltschiebers (9) über den Umlenkhebel (10) wieder in seine Verriegelungsstellung zurückbewegt wor­den ist.9. Short-circuit detector according to claim 6 to 8, characterized in that the locking slide (16) is under the action of a tension spring (22) which after releasing the lock due to displacement of the trigger slide (14) together with the bellcrank (10) in the Moves the OFF position and holds it until it has been moved back into its locking position by actuating the switch-on slide (9) connected to it via the deflection lever (10). 10. Kurzschlußmelder nach Anspruch 6 bis 9, dadurch gekennzeichnet, daß zwischen dem Auslöse­schieber (14) und dem Verriegelungsschieber (16) eine beide Schieber in Auslöserichtung (12) auseinanderdrük­kende Feder (23) angeordnet ist.10. Short-circuit detector according to claim 6 to 9, characterized in that between the trigger slide (14) and the locking slide (16) a two slide in the triggering direction (12) apart spring (23) is arranged. 11. Kurzschlußmelder nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Rückstellknopf (5) an der vorderen Schmalseite (6) des Schaltergehäuses (7) in einer Vertiefung (8) derart ver­senkt angeordnet ist, daß er auch in der AUS-Stellung nicht über die Ebene der Gehäuseschmalseite (6) hervor­steht.11. Short-circuit detector according to one of claims 1 to 10, characterized in that the reset button (5) on the front narrow side (6) of the switch housing (7) is arranged recessed in a recess (8) such that it is also in the AUS- Position does not protrude beyond the level of the narrow housing side (6). 12. Kurzschlußmelder nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß dem Auslöseschieber (14) am Schaltergehäuse (7) eine Test­öffnung (24) zugeordnet ist, durch die der Auslöseschie­ber (14) mittels eines Schraubendrehers oder dergleichen ohne Kurzschluß- oder Überstromauslösung von Hand rein mechanisch ausgelöst werden kann.12. Short-circuit detector according to one of claims 1 to 11, characterized in that the trigger slide (14) on the switch housing (7) is assigned a test opening (24) through which the trigger slide (14) by means of a screwdriver or the like without short-circuit or overcurrent triggering can be triggered purely mechanically by hand. 13. Kurzschlußmelder nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der Einschaltschieber (9) mit mindestens zwei gegenläufig wirksamen Hilfsschaltern, einem Öffner (25) und einem Schließer (26), verbunden ist.13. Short-circuit detector according to one of claims 1 to 12, characterized in that the switch-on slide (9) is connected to at least two counter-acting auxiliary switches, an opener (25) and a closer (26).
EP89119880A 1988-11-04 1989-10-26 Short circuit indicator Expired - Lifetime EP0367102B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3837461A DE3837461A1 (en) 1988-11-04 1988-11-04 SHORT CIRCUIT DETECTOR
DE3837461 1988-11-04

Publications (3)

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EP0367102A2 true EP0367102A2 (en) 1990-05-09
EP0367102A3 EP0367102A3 (en) 1991-12-04
EP0367102B1 EP0367102B1 (en) 1995-06-14

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ID=6366488

Family Applications (1)

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EP89119880A Expired - Lifetime EP0367102B1 (en) 1988-11-04 1989-10-26 Short circuit indicator

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EP (1) EP0367102B1 (en)
AT (1) ATE123902T1 (en)
DE (2) DE3837461A1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674370A1 (en) * 1991-03-21 1992-09-25 Telemecanique PROTECTIVE SWITCHING APPARATUS ACCOUPABLE TO A CONTROL MODULE AND / OR A SIGNALING MODULE.
FR2684231A1 (en) * 1991-11-22 1993-05-28 Hager Electro Auxiliary apparatus of electrical circuit breakers
EP0583762A1 (en) * 1992-08-20 1994-02-23 Moeller GmbH Switching device
EP0612089A2 (en) * 1993-02-17 1994-08-24 Moeller GmbH Switching device for circuit breakers
US6031195A (en) * 1997-07-14 2000-02-29 Allen-Bradley Company, Llc Latching mechanism for an electrical overload protection switch, in particular for a motor-protection circuit breaker
EP0949647A3 (en) * 1998-04-09 2000-05-10 Eaton Corporation Trip indicator and signalling switch assembly
EP1315190A2 (en) * 2001-11-24 2003-05-28 Moeller GmbH Test device with short circuit indicator
FR2859570A1 (en) * 2003-09-04 2005-03-11 Fuji Elec Fa Components & Sys AUXILIARY SWITCHING UNIT FOR A CIRCUIT BREAKER
EP1659602A2 (en) 2004-11-23 2006-05-24 ABB PATENT GmbH Device for display of tripping of circuit breaker due to short circuit current
EP1670014A1 (en) * 2004-12-10 2006-06-14 EATON Corporation Method of actuating a test function of an electrical switching apparatus and electrical switching apparatus employing the same
EP1659603A3 (en) * 2004-11-23 2009-12-30 ABB PATENT GmbH Device for display and signalling of tripping of a circuit breaker due to short circuit current
CN103311057A (en) * 2012-03-08 2013-09-18 西门子公司 Short circuit indicator module for an electrical switching device and electrical switching device
EP2911176A1 (en) * 2014-02-17 2015-08-26 Abb Ag Auxiliary switch with test button
US9853400B1 (en) 2016-11-01 2017-12-26 International Business Machines Corporation Electrical arc protection using a trip jumper
US9893455B1 (en) 2016-11-01 2018-02-13 International Business Machines Corporation Electrical arc protection using a trip contact
US10122123B1 (en) 2017-07-07 2018-11-06 International Business Machines Corporation Electrical arc protection using a rotational shield

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DE102010019741B4 (en) * 2010-05-07 2022-05-05 Siemens Aktiengesellschaft Switching mechanism for a residual current circuit breaker and residual current circuit breaker
DE102016214681B4 (en) 2016-08-08 2018-07-26 Audi Ag Actuating device for a motor vehicle

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DE3402850A1 (en) * 1984-01-27 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Protection circuit breaker having an overcurrent and short-circuit trip device
DE3603945A1 (en) * 1986-02-07 1987-08-13 Siemens Ag Add-on switch for protection circuit breakers

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DE3014553A1 (en) * 1980-04-16 1981-10-22 Condor-Werk Gebr. Frede KG Elektro- und Maschinenfabrik, 4722 Ennigerloh Manual motor resetting mechanism - is for motor protection switch and has lever pushed down to break remote indicator circuit by reset button
DE3402850A1 (en) * 1984-01-27 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Protection circuit breaker having an overcurrent and short-circuit trip device
DE3603945A1 (en) * 1986-02-07 1987-08-13 Siemens Ag Add-on switch for protection circuit breakers

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674370A1 (en) * 1991-03-21 1992-09-25 Telemecanique PROTECTIVE SWITCHING APPARATUS ACCOUPABLE TO A CONTROL MODULE AND / OR A SIGNALING MODULE.
FR2684231A1 (en) * 1991-11-22 1993-05-28 Hager Electro Auxiliary apparatus of electrical circuit breakers
EP0583762A1 (en) * 1992-08-20 1994-02-23 Moeller GmbH Switching device
EP0612089A2 (en) * 1993-02-17 1994-08-24 Moeller GmbH Switching device for circuit breakers
EP0612089A3 (en) * 1993-02-17 1994-12-21 Kloeckner Moeller Gmbh Switching device for circuit breakers.
US6031195A (en) * 1997-07-14 2000-02-29 Allen-Bradley Company, Llc Latching mechanism for an electrical overload protection switch, in particular for a motor-protection circuit breaker
EP0949647A3 (en) * 1998-04-09 2000-05-10 Eaton Corporation Trip indicator and signalling switch assembly
EP1315190A2 (en) * 2001-11-24 2003-05-28 Moeller GmbH Test device with short circuit indicator
EP1315190A3 (en) * 2001-11-24 2005-02-02 Moeller GmbH Test device with short circuit indicator
FR2859570A1 (en) * 2003-09-04 2005-03-11 Fuji Elec Fa Components & Sys AUXILIARY SWITCHING UNIT FOR A CIRCUIT BREAKER
EP1659602A2 (en) 2004-11-23 2006-05-24 ABB PATENT GmbH Device for display of tripping of circuit breaker due to short circuit current
EP1659603A3 (en) * 2004-11-23 2009-12-30 ABB PATENT GmbH Device for display and signalling of tripping of a circuit breaker due to short circuit current
EP1659602A3 (en) * 2004-11-23 2009-12-30 ABB PATENT GmbH Device for display of tripping of circuit breaker due to short circuit current
EP1670014A1 (en) * 2004-12-10 2006-06-14 EATON Corporation Method of actuating a test function of an electrical switching apparatus and electrical switching apparatus employing the same
CN103311057A (en) * 2012-03-08 2013-09-18 西门子公司 Short circuit indicator module for an electrical switching device and electrical switching device
EP2911176A1 (en) * 2014-02-17 2015-08-26 Abb Ag Auxiliary switch with test button
US9853400B1 (en) 2016-11-01 2017-12-26 International Business Machines Corporation Electrical arc protection using a trip jumper
US9893455B1 (en) 2016-11-01 2018-02-13 International Business Machines Corporation Electrical arc protection using a trip contact
US10229806B2 (en) 2016-11-01 2019-03-12 International Business Machines Corporation Electrical arc protection using a trip jumper
US10230193B2 (en) 2016-11-01 2019-03-12 International Business Machines Corporation Electrical arc protection using a trip contact
US10122123B1 (en) 2017-07-07 2018-11-06 International Business Machines Corporation Electrical arc protection using a rotational shield

Also Published As

Publication number Publication date
DE58909294D1 (en) 1995-07-20
DE3837461A1 (en) 1990-05-10
ATE123902T1 (en) 1995-06-15
EP0367102B1 (en) 1995-06-14
EP0367102A3 (en) 1991-12-04

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