EP0241412A1 - Mounting arrangement for auxiliary tripping units - Google Patents

Mounting arrangement for auxiliary tripping units Download PDF

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Publication number
EP0241412A1
EP0241412A1 EP87730034A EP87730034A EP0241412A1 EP 0241412 A1 EP0241412 A1 EP 0241412A1 EP 87730034 A EP87730034 A EP 87730034A EP 87730034 A EP87730034 A EP 87730034A EP 0241412 A1 EP0241412 A1 EP 0241412A1
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EP
European Patent Office
Prior art keywords
auxiliary
shaft
carrier plate
release
trigger
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
EP87730034A
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German (de)
French (fr)
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EP0241412B1 (en
Inventor
Manfred Krüger
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP0241412A1 publication Critical patent/EP0241412A1/en
Application granted granted Critical
Publication of EP0241412B1 publication Critical patent/EP0241412B1/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
    • 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
    • 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
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts

Definitions

  • the invention relates to an arrangement for mounting auxiliary triggers in at least one trigger shaft and as a component of its support structure having a wall switching device.
  • Shunt releases or undervoltage releases can be considered as auxiliary releases; a switching device can be triggered remotely or inevitably triggered when the voltage falls below a certain value. If the switching device is a low-voltage circuit breaker which has a storage drive, it may also be desirable to be able to remotely switch on by means of a further shunt release. It may also be desirable to secure the circuit breaker against reclosing when tripping by overcurrent, short circuit or undervoltage has occurred. These processes can also be achieved using auxiliary triggers of suitable construction.
  • the invention has for its object to provide an arrangement which allows the switching device to be provided with a simple or with the most comprehensive possible equipment of auxiliary releases with little effort.
  • a support plate dimensioned for the most extensive configuration with auxiliary triggers, which on the mentioned wall can be attached by means of prepared fastening means and which has an auxiliary shaft for transmitting the release movements of the auxiliary release to the release shaft.
  • the required auxiliary releases can be installed and checked outside the switchgear.
  • the finished and functional unit can then be inserted into the switching device without difficulty, since cooperating, for example, form-fitting aids are provided on the carrier plate and the wall of the switching device.
  • the required mechanical connection between the auxiliary releases and the release shaft is established automatically.
  • the carrier plate and the auxiliary shaft can be used unchanged if, according to a further development of the invention, the auxiliary shaft is provided with tactile fingers to be acted upon by release elements of the auxiliary triggers and the length and arrangement of the tactile fingers are adapted in accordance with the position of the trigger elements possible with different mounting of the carrier plate with auxiliary triggers is. In this way it is also possible to mount different auxiliary triggers at one and the same location on the carrier plate.
  • the auxiliary shaft only requires a relatively simple storage, since it only needs to execute a small swivel angle in order to actuate the trigger shaft.
  • the auxiliary shaft can have a bearing journal at one end and, at a suitable distance therefrom, at least one shaft section provided for mounting in a half-shell-like recess in the carrier plate.
  • the Auxiliary shaft can then only be installed by inserting its journal into a bearing opening in the carrier plate and attaching a suitable cover plate.
  • the support plate with a continuous, flat mounting surface for the auxiliary releases.
  • the construction of a desired set of auxiliary releases takes place much more quickly if the mounting plate instead has mounting spaces designed to accommodate certain types of auxiliary releases, at least one of the mounting locations being designed to be optionally equipped with auxiliary releases of different functions and / or sizes and the mounting plate in the area this assembly area is frame-shaped to achieve the greatest possible assembly depth.
  • the support plate therefore has an opening at this point, into which the auxiliary release can partially immerse, so that no space is lost due to the material thickness required for reasons of mechanical stability.
  • the auxiliary shaft can be provided with two or more tactile fingers in a design adapted to the different configurations with auxiliary releases according to size and position. For this reason, only a uniform version of the auxiliary shaft is required for all of the components.
  • a connection to the trigger shaft is established automatically when the carrier plate is inserted into the switching device.
  • this driver can additionally have at least one additional work surface for direct loading by one of the auxiliary triggers. This gives the opportunity to Assign auxiliary shaft to those auxiliary triggers which are arranged at a distance from the trigger shaft, while auxiliary triggers adjacent to the trigger shaft can interact directly with the driver.
  • the switching device has a trigger shaft for a switch-on memory in addition to the trigger shaft for the switch lock, it is advisable to also provide the mounting plate with a mounting space for one for triggering the switch-on memory, i. H. to provide auxiliary triggers provided for switching on the switching device.
  • This auxiliary release can expediently interact directly with the associated release shaft. If, however, it should be cheaper for reasons of spatial allocation, an auxiliary wave can also be used in this case.
  • Figures 1 and 2 show an arrangement of auxiliary releases in plan view and in a side view with adjacent parts of a low-voltage circuit breaker.
  • FIG. 3 shows an auxiliary shaft of the arrangement according to FIGS. 1 and 2.
  • FIGS. 4 and 5 show a view of the auxiliary shaft according to FIG. 3 in the direction of arrow IV in FIG. 3 or a section V-V in FIG. 3.
  • FIG. 6 shows a carrier plate for an auxiliary release arrangement in a top view.
  • FIGS. 7 and 8 show, in a representation that is reduced compared to FIG. 6, the fitting of an assembly location of the carrier plate according to FIG. 6 with different auxiliary triggers.
  • the auxiliary release arrangement designated as a whole by 1 in FIGS. 1 and 2 is mounted on a wall 2 which is part of the supporting structure of a low-voltage circuit breaker.
  • the wall 2 can be an intermediate wall in which the drive shafts and tripping shafts of the circuit breaker are mounted.
  • the auxiliary trigger arrangement 1 comprises a carrier plate 3, which can preferably consist of a suitable plastic.
  • the carrier plate 3 On its underside, the carrier plate 3 has at least two pegs 4, openings 2 of which are provided in the carrier plate 2 to accommodate them. In this way, the carrier plate 3 can be inserted into the circuit breaker in a dimensionally correct manner without adjustment. Screws are sufficient for fastening, for which a through opening 5 and a laterally open recess 6 are provided on the edge of the carrier plate 3.
  • the carrier plate 3 is equipped with a total of four auxiliary releases, namely an undervoltage release 7, a shunt release 10, a restart lock 11 and a solenoid 12.
  • the auxiliary releases 7, 10 and 11 act on a trigger shaft 13 on which a driver 14 is placed.
  • the trigger shaft 13 is part of the circuit breaker of the circuit breaker and is used to latch the contact apparatus of the circuit breaker in the closed position and to be able to release this latching again.
  • the circuit breaker has a spring accumulator which serves to store the switch-on energy.
  • a tripping shaft also belongs to this energy store, by actuating it the energy store can be released so that the circuit breaker is switched on.
  • the retrieval magnet 12 serves as a separate auxiliary trigger for remotely carrying out such a switch-on.
  • the relevant trigger shaft has been omitted in FIGS. 1 and 2 to improve clarity.
  • the auxiliary trigger 7 is located at such a distance from the trigger shaft 13 and the driver 14 seated thereon that a direct action on the driver 13 by the trigger member 15 of the auxiliary trigger 7 is not possible.
  • the transmission of the trigger movement is carried out in a surprisingly simple manner by means of an auxiliary shaft 16 which is pivotably mounted on the carrier plate 3.
  • the auxiliary shaft 16 has at one end a bearing pin 17 and at a suitable distance therefrom a cylindrical section 20 suitable for storage. With the bearing pin 17, the auxiliary shaft 16 engages in a bearing opening 21 in a lower, angled end part 22 of the carrier plate 3 a.
  • the cylindrical section 20 lies in an approximately half-shell-shaped recess 23 (FIG. 2) of the carrier plate 3. In this position, the auxiliary shaft 16 is secured by a cover piece 24.
  • the auxiliary shaft 16 has at its end opposite the journal 17 a finger 25, the shape of which can be seen in detail in FIG. With this touch finger, the auxiliary shaft 16 interacts with an extension 26 of the driver 14, so that the movements of the auxiliary shaft 16 can be transmitted to the trigger shaft 13 in this way.
  • the tactile finger 25 is dimensioned such that it does not protrude into the path of a trigger element 27 of the auxiliary trigger 10 and this trigger element can thus act directly on the extension 26 of the driver 14.
  • auxiliary shaft 16 which can be seen in greater detail in FIGS. 2 and 3, are located in the region of the auxiliary trigger 7, the triggering element 15 interacting with the tactile finger 32. If the mounting location of the support plate 3, at which in FIGS Auxiliary trigger 7 is located, equipped with other auxiliary triggers, so the trigger force can also be applied to the touch finger 30 or the touch finger 31. The trigger movement is always transmitted to the trigger shaft 13 by means of the auxiliary shaft 16.
  • the trigger shaft 16 is provided with an extension 33 which is arranged near the touch finger 25.
  • the shape of this extension is shown in more detail in FIGS. 3 and 5.
  • the extension 33 is provided with a through opening 34, which is used to hang a helical tension spring in order to be able to introduce a restoring force into the auxiliary shaft 16.
  • the auxiliary release 11 is a restart lock. It is a magnet system which is attracted in its rest position by means of a permanent magnet or by permanent excitation and which can be released by de-excitation or overcoming the holding force of the permanent magnet. A spring mechanism then brings the auxiliary release into the released state, in which a pull rod 35 with an angled end 36 acts on a further extension 37 of the driver 14. The trigger shaft 13 then remains in its trigger position until the restart lock is reset. An auxiliary switch 40 is actuated by means of the pull rod 37 in the manner shown in FIG. 1, which thus signals the position of the trigger shaft 13.
  • a third extension 41 of the driver 14 is provided to transmit a trigger movement by an actuating magnet, not shown, in the direction of an arrow 42 to the trigger shaft 13.
  • This actuating magnet can in particular be controlled by an electronic tripping unit which responds to overcurrent and short-circuit in accordance with predefined characteristic curves.
  • FIG. 6 a carrier plate 50 largely corresponding to the carrier plate 3 in FIGS. 1 and 2 is shown only together with a trigger shaft 51. Based on this representation, the mounting locations of the carrier plate can be recognized by the auxiliary releases.
  • a total of four assembly stations 52, 53, 54 and 55 are provided, which are provided with suitable fastening means, for example the bores or through holes 56, 57 and 58 shown in the region of the assembly stations 53, 54 and 55.
  • the carrier plate 50 is designed like a frame with an opening 60. At this point, the greatest possible installation depth is available, since an auxiliary release to be installed here - apart from a necessary small space - can extend to wall 2 (FIGS. 1 and 2).
  • FIG. 6 also shows a tension coil spring 64 which acts on the auxiliary shaft 51 in the same manner as was explained with reference to FIGS. 3 and 5 using the example of the auxiliary shaft 16.
  • the carrier plate 50 can be provided with one or more auxiliary triggers up to the intended maximum configuration of four auxiliary triggers.
  • Different auxiliary releases can be installed in the area of the assembly site 52.
  • FIG. 7 shows the assembly location 52 being equipped with a shunt release 61 which is only of a relatively small size and thus only partially utilizes the available space. Proper interaction of the release member 62 of the shunt release 61 with the auxiliary shaft 51 is ensured by the fact that the latter has adjacent finger fingers in the manner already described.
  • a larger auxiliary release 63 is shown in FIG. B. an undervoltage release, which accordingly dips into the opening 60 of the support plate 50 and fully utilizes the assembly space 52.
  • the other assembly stations 53, 54 and 55 are each provided in the example shown for being equipped with a specific type of auxiliary release; However, it is easy to see that these assembly stations can also be equipped with auxiliary releases of different functions and sizes if necessary.

Landscapes

  • Breakers (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Air Bags (AREA)

Abstract

A low-voltage circuit breaker can be provided with a variable arrangement of auxiliary tripping units, for example low-voltage tripping units, operating current tripping units, switch-on magnets and reclosing locks. The auxiliary tripping units are mounted on a carrier plate (3) on prepared mounting points. To transmit the tripping movement, an auxiliary shaft (16) is provided which interacts with a driver (14) that is seated on a trip shaft (13). The auxiliary shaft (16) has keying fingers (32) for transmitting the tripping force from the tripping devices (15) onto the driver (14), as well as a projection (33) for the engagement of a restoring spring. The carrier plate (3) can be mounted on a wall in the supporting mechanism of the circuit breaker, by means of prepared mounting devices, for example pegs and screwed holes, and thus needs no adjustment. <IMAGE>

Description

Die Erfindung betrifft eine Anordnung zur Montage von Hilfsauslösern in einem wenigstens eine Auslösewelle sowie als Bestandteil seines Tragwerkes eine Wand aufweisenden Schaltgerät.The invention relates to an arrangement for mounting auxiliary triggers in at least one trigger shaft and as a component of its support structure having a wall switching device.

Als Hilfsauslöser kommen beispielsweise Arbeitsstromauslöser oder Unterspannungsauslöser in Betracht; hiermit kann ein Schaltgerät ferngesteuert ausgelöst bzw. bei Unterschreitung eines bestimmten Spannungswertes zwangsläufig ausgelöst werden. Handelt es sich bei dem Schaltgerät um einen Niederspannungs-Leistungsschalter, der einen Speicherantrieb besitzt, so kann es auch erwünscht sein, mittels eines weiteren Arbeitsstromauslösers eine Einschaltung ferngesteuert vornehmen zu können. Ferner kann es erwünscht sein, den Leistungsschalter gegen eine Wieder­einschaltung zu sichern, wenn eine Auslösung durch Überstrom, Kurzschluß oder Unterspannung stattgefunden hat. Auch diese Vorgänge sind durch Hilfsauslöser geeigneter Konstruktion zu erreichen.Shunt releases or undervoltage releases can be considered as auxiliary releases; a switching device can be triggered remotely or inevitably triggered when the voltage falls below a certain value. If the switching device is a low-voltage circuit breaker which has a storage drive, it may also be desirable to be able to remotely switch on by means of a further shunt release. It may also be desirable to secure the circuit breaker against reclosing when tripping by overcurrent, short circuit or undervoltage has occurred. These processes can also be achieved using auxiliary triggers of suitable construction.

Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung zu schaffen, die es mit geringem Arbeitsaufwand erlaubt, ein Schaltgerät wahlweise mit einer einfachen oder mit einer möglichst umfassenden Ausrüstung von Hilfsauslösern versehen zu können.The invention has for its object to provide an arrangement which allows the switching device to be provided with a simple or with the most comprehensive possible equipment of auxiliary releases with little effort.

Diese Aufgabe wird gemäß der Erfindung durch eine für die umfangreichste in Betracht kommende Bestückung mit Hilfsauslösern bemessene Trägerplatte gelöst, die an der erwähnten Wand mittels vorbereiteter Befestigungsmittel maßgerecht anbringbar ist und die eine Hilfswelle zur Übertragung der Auslösebewegungen der Hilfsauslöser auf die Auslösewelle aufweist.This object is achieved according to the invention by a support plate dimensioned for the most extensive configuration with auxiliary triggers, which on the mentioned wall can be attached by means of prepared fastening means and which has an auxiliary shaft for transmitting the release movements of the auxiliary release to the release shaft.

Auf diese Weise können die benötigten Hilfsauslöser außerhalb des Schaltgerätes montiert und geprüft werden. Die fertige und funktionsfähige Einheit läßt sich dann ohne Schwierigkeit in das Schaltgerät einsetzen, da an der Trägerplatte und der Wand des Schaltgerätes zusammen­wirkende, beispielsweise formschlüssig wirkende Hilfsmittel vorgesehen sind. Die erforderliche mechanische Verbindung zwischen den Hilfsauslösern und der Auslösewelle kommt dabei selbsttätig zustande.In this way, the required auxiliary releases can be installed and checked outside the switchgear. The finished and functional unit can then be inserted into the switching device without difficulty, since cooperating, for example, form-fitting aids are provided on the carrier plate and the wall of the switching device. The required mechanical connection between the auxiliary releases and the release shaft is established automatically.

Die neue Anordnung bietet nicht nur die Möglichkeit, unter­schiedliche Anzahlen, sondern auch unterschiedliche Zusammenstellungen von Hilfsauslösern vorzusehen. Dennoch können die Trägerplatte und die Hilfswelle unverändert einsetzbar sein, wenn nach einer Weiterbildung der Erfindung die Hilfswelle zur Beaufschlagung durch Auslöseorgane der Hilfsauslöser vorgesehene Tastfinger besitzt und die Länge und Anordnung der Tastfinger entsprechend der bei unter­schiedlicher Bestückung der Trägerplatte mit Hilfsauslösern möglichen Lage der Auslöseorgane angepaßt ausgebildet ist. Auf diese Weise ist es auch möglich, an ein und derselben Stelle der Trägerplatte wahlweise unterschiedliche Hilfsauslöser zu montieren.The new arrangement not only offers the possibility of providing different numbers, but also different combinations of auxiliary triggers. Nevertheless, the carrier plate and the auxiliary shaft can be used unchanged if, according to a further development of the invention, the auxiliary shaft is provided with tactile fingers to be acted upon by release elements of the auxiliary triggers and the length and arrangement of the tactile fingers are adapted in accordance with the position of the trigger elements possible with different mounting of the carrier plate with auxiliary triggers is. In this way it is also possible to mount different auxiliary triggers at one and the same location on the carrier plate.

Die Hilfswelle benötigt nur eine verhältnismäßig einfache Lagerung, da sie nur einen geringen Schwenkwinkel auszuführen braucht, um die Auslösewelle zu betätigen. Hierzu kann die Hilfswelle an einem Ende einen Lagerzapfen sowie in einem geeigneten Abstand hiervon wenigstens einen zur Lagerung in einer halbschalenartigen Ausnehmung der Trägerplatte vorgesehenen Wellenabschnitt besitzen. Die Hilfswelle läßt sich dann lediglich durch Einstecken ihres Lagerzapfens in eine Lageröffnung der Trägerplatte und Anbringen einer geeigneten Deckplatte montieren.The auxiliary shaft only requires a relatively simple storage, since it only needs to execute a small swivel angle in order to actuate the trigger shaft. For this purpose, the auxiliary shaft can have a bearing journal at one end and, at a suitable distance therefrom, at least one shaft section provided for mounting in a half-shell-like recess in the carrier plate. The Auxiliary shaft can then only be installed by inserting its journal into a bearing opening in the carrier plate and attaching a suitable cover plate.

An sich könnte man daran denken, die Trägerplatte mit einer durchgehenden, ebenen Montagefläche für die Hilfsauslöser zu versehen. Der Aufbau eines gewünschten Satzes von Hilfsauslösern vollzieht sich jedoch wesentlich rascher, wenn die Trägerplatte statt dessen zur Aufnahme bestimmter Bauarten von Hilfsauslösern bemessene Montageplätze besitzt, wobei wenigstens einer der Montageplätze zur wahlweisen Bestückung mit Hilfsauslösern unterschiedlicher Funktion und/oder Größe ausgebildet und die Trägerplatte im Bereich dieses Montageplatzes zur Erzielung einer größt­möglichen Montagetiefe rahmenartig ausgebildet ist. Die Trägerplatte weist daher an dieser Stelle eine Durchbrechung auf, in die der Hilfsauslöser teilweise eintauchen kann, so daß durch die aus Gründen der mechanischen Stabilität erforderliche Materialdicke kein Raum verloren geht.In itself, one could think of providing the support plate with a continuous, flat mounting surface for the auxiliary releases. However, the construction of a desired set of auxiliary releases takes place much more quickly if the mounting plate instead has mounting spaces designed to accommodate certain types of auxiliary releases, at least one of the mounting locations being designed to be optionally equipped with auxiliary releases of different functions and / or sizes and the mounting plate in the area this assembly area is frame-shaped to achieve the greatest possible assembly depth. The support plate therefore has an opening at this point, into which the auxiliary release can partially immerse, so that no space is lost due to the material thickness required for reasons of mechanical stability.

Im Bereich des wahlweise bestückbaren Montageplatzes kann die Hilfswelle mit zwei oder mehreren Tastfingern in einer den unterschiedlichen Bestückungen mit Hilfsauslösern nach Größe und Stellung angepaßten Gestaltung versehen sein. Es wird daher für alle Bestückungen nur eine einheitliche Ausführung der Hilfswelle benötigt.In the area of the assembly station which can be optionally equipped, the auxiliary shaft can be provided with two or more tactile fingers in a design adapted to the different configurations with auxiliary releases according to size and position. For this reason, only a uniform version of the auxiliary shaft is required for all of the components.

Wie bereits erwähnt, kommt beim Einsetzen der Trägerplatte in das Schaltgerät selbsttätig eine Verbindung mit der Auslösewelle zustand. Um diesen Vorgang besonders zuverlässig durchzuführen, bewährt es sich, die Hilfswelle mit einem Tastfinger zur Beaufschlagung eines auf der Auslösewelle sitzenden Mitnehmers zu versehen; dieser Mitnehmer kann zusätzlich wenigstens eine zusätzliche Arbeitsfläche zur direkten Beaufschlagung durch einen der Hilfsauslöser aufweisen. Dies gibt die Möglichkeit, die Hilfswelle denjenigen Hilfsauslösern zuzuordnen, die von der Auslösewelle entfernt angeordnet sind, während der Auslöse­welle benachbarte Hilfsauslöser unmittelbar mit dem Mit­nehmer zusammenwirken können.As already mentioned, a connection to the trigger shaft is established automatically when the carrier plate is inserted into the switching device. In order to carry out this process particularly reliably, it has proven useful to provide the auxiliary shaft with a touch finger to act on a driver seated on the release shaft; this driver can additionally have at least one additional work surface for direct loading by one of the auxiliary triggers. This gives the opportunity to Assign auxiliary shaft to those auxiliary triggers which are arranged at a distance from the trigger shaft, while auxiliary triggers adjacent to the trigger shaft can interact directly with the driver.

Wenn das Schaltgerät neben der Auslösewelle für das Schaltschloß noch eine Auslösewelle für einen Einschalt­speicher besitzt, so empfiehlt es sich, die Trägerplatte auch mit einem Montageplatz für einen zur Auslösung des Einschaltspeichers, d. h. zum Einschalten des Schaltgerätes vorgesehenen Hilfsauslöser zu versehen. Zweckmäßig kann dieser Hilfsauslöser direkt mit der zugehörigen Auslösewelle zusammenwirken. Sofern es aber aus Gründen der räumlichen Zuordnung günstiger sein sollte, kann auch in diesem Fall von einer Hilfswelle Gebrauch gemacht werden.If the switching device has a trigger shaft for a switch-on memory in addition to the trigger shaft for the switch lock, it is advisable to also provide the mounting plate with a mounting space for one for triggering the switch-on memory, i. H. to provide auxiliary triggers provided for switching on the switching device. This auxiliary release can expediently interact directly with the associated release shaft. If, however, it should be cheaper for reasons of spatial allocation, an auxiliary wave can also be used in this case.

Die Erfindung wird im folgenden anhand der in den Figuren dargestellten Ausführungsbeispiele näher erläutert.The invention is explained in more detail below with reference to the exemplary embodiments shown in the figures.

Die Figuren 1 und 2 zeigen eine Anordnung von Hilfsaus­lösern in der Draufsicht sowie in einer Seitenansicht mit angrenzenden Teilen eines Niederspannungs-Leistungsschal­ters.Figures 1 and 2 show an arrangement of auxiliary releases in plan view and in a side view with adjacent parts of a low-voltage circuit breaker.

Die Figur 3 zeigt eine Hilfswelle der Anordnung gemäß den Figuren 1 und 2. Die Figuren 4 und 5 zeigen eine Ansicht der Hilfswelle gemäß der Figur 3 in der Richtung des Pfeiles IV in Fig. 3 bzw. einen Schnitt V-V in Fig. 3.3 shows an auxiliary shaft of the arrangement according to FIGS. 1 and 2. FIGS. 4 and 5 show a view of the auxiliary shaft according to FIG. 3 in the direction of arrow IV in FIG. 3 or a section V-V in FIG. 3.

In der Figur 6 ist eine Trägerplatte für eine Hilfsauslöser­anordnung in der Draufsicht gezeigt.FIG. 6 shows a carrier plate for an auxiliary release arrangement in a top view.

Die Figuren 7 und 8 zeigen in einer gegenüber der Figur 6 verkleinerten Darstellung die Bestückung eines Montage­platzes der Trägerplatte gemäß der Figur 6 mit unterschied­lichen Hilfsauslösern.FIGS. 7 and 8 show, in a representation that is reduced compared to FIG. 6, the fitting of an assembly location of the carrier plate according to FIG. 6 with different auxiliary triggers.

Die als Ganzes mit 1 bezeichnete Hilfsauslöseranordnung in den Figuren 1 und 2 ist auf einer Wand 2 montiert, die Bestandteil des Tragwerkes eines Niederspannungs-Leistungs­schalters ist. Beispielsweise kann es sich bei der Wand 2 um eine Zwischenwand handeln, in der Antriebswellen und Auslösewellen des Leistungsschalters gelagert sind. Die Hilfsauslöseranordnung 1 umfaßt eine Trägerplatte 3, die vorzugsweise aus einem geeigneten Kunststoff bestehen kann. An ihrer Unterseite besitzt die Trägerplatte 3 wenigstens zwei Zapfen 4, zu deren Aufnahme in der Trägerplatte 2 passende Öffnungen 8 vorgesehen sind. Auf diese Weise läßt sich die Trägerplatte 3 ohne Justierung maßgerecht in den Leistungsschalter einsetzen. Zur Befestigung genügen Schrauben, für die am Rande der Trägerplatte 3 eine Durchgangsöffnung 5 sowie eine seitlich offene Ausnehmung 6 vorgesehen sind.The auxiliary release arrangement designated as a whole by 1 in FIGS. 1 and 2 is mounted on a wall 2 which is part of the supporting structure of a low-voltage circuit breaker. For example, the wall 2 can be an intermediate wall in which the drive shafts and tripping shafts of the circuit breaker are mounted. The auxiliary trigger arrangement 1 comprises a carrier plate 3, which can preferably consist of a suitable plastic. On its underside, the carrier plate 3 has at least two pegs 4, openings 2 of which are provided in the carrier plate 2 to accommodate them. In this way, the carrier plate 3 can be inserted into the circuit breaker in a dimensionally correct manner without adjustment. Screws are sufficient for fastening, for which a through opening 5 and a laterally open recess 6 are provided on the edge of the carrier plate 3.

Die Trägerplatte 3 ist mit insgesamt vier Hilfsauslösern bestückt, und zwar einem Unterspannungsauslöser 7, einem Arbeitsstromauslöser 10, einer Wiedereinschaltsperre 11 sowie einem Abrufmagnet 12. Die Hilfsauslöser 7, 10 und 11 wirken auf eine Auslösewelle 13, auf die ein Mitnehmer 14 aufgesetzt ist. Die Auslösewelle 13 ist Bestandteil des Schaltschlosses des Leistungsschalters und dient dazu, den Kontaktapparat des Leistungsschalters in der Einschalt­stellung zu verklinken und diese Verklinkung wieder aufheben zu können. In dem vorliegenden Beispiel ist ferner angenom­men, daß der Leistungsschalter einen Federspeicher besitzt, der zur Speicherung der Einschaltenergie dient. Zu diesem Energiespeicher gehört gleichfalls eine Auslösewelle, durch deren Betätigung der Energiespeicher freigebbar ist, so daß der Leistungsschalter eingeschaltet wird. Zur ferngesteuer­ten Durchführung einer solchen Einschaltung dient der Abrufmagnet 12 als gesonderter Hilfsauslöser. Die betref­fende Auslösewelle ist zur Verbesserung der Übersichtlich­keit in den Figur 1 und 2 fortgelassen.The carrier plate 3 is equipped with a total of four auxiliary releases, namely an undervoltage release 7, a shunt release 10, a restart lock 11 and a solenoid 12. The auxiliary releases 7, 10 and 11 act on a trigger shaft 13 on which a driver 14 is placed. The trigger shaft 13 is part of the circuit breaker of the circuit breaker and is used to latch the contact apparatus of the circuit breaker in the closed position and to be able to release this latching again. In the present example it is also assumed that the circuit breaker has a spring accumulator which serves to store the switch-on energy. A tripping shaft also belongs to this energy store, by actuating it the energy store can be released so that the circuit breaker is switched on. The retrieval magnet 12 serves as a separate auxiliary trigger for remotely carrying out such a switch-on. The relevant trigger shaft has been omitted in FIGS. 1 and 2 to improve clarity.

Bei der Betrachtung der Figur 1 ist festzustellen, daß sich der Hilfsauslöser 7 in einer solchen Entfernung von der Aus­lösewelle 13 und dem darauf sitzenden Mitnehmer 14 befindet, daß eine unmittelbare Beaufschlagung des Mitnehmers 13 durch das Auslöseorgan 15 des Hilfsauslösers 7 nicht möglich ist. Die Übertragung der Auslösebewegung gelingt jedoch auf überraschend einfache Weise mittels einer Hilfswelle 16, die an der Trägerplatte 3 schwenkbar gelagert ist. Wie insbesondere die Figur 3 zeigt, besitzt die Hilfswelle 16 an ihrem einen Ende einen Lagerzapfen 17 sowie in einer geeigneten Entfernung hiervon einen zur Lagerung geeigneten zylindrischen Abschnitt 20. Mit dem Lagerzapfen 17 greift die Hilfswelle 16 in eine Lageröffnung 21 in einem unteren, abgewinkelten Endteil 22 der Trägerplatte 3 ein. Der zylindrische Abschnitt 20 liegt in einer etwa halbschalen­förmigen Ausnehmung 23 (Fig. 2) der Trägerplatte 3. In dieser Stellung ist die Hilfswelle 16 durch ein Deckstück 24 gesichert.1, it can be seen that the auxiliary trigger 7 is located at such a distance from the trigger shaft 13 and the driver 14 seated thereon that a direct action on the driver 13 by the trigger member 15 of the auxiliary trigger 7 is not possible. However, the transmission of the trigger movement is carried out in a surprisingly simple manner by means of an auxiliary shaft 16 which is pivotably mounted on the carrier plate 3. As FIG. 3 shows in particular, the auxiliary shaft 16 has at one end a bearing pin 17 and at a suitable distance therefrom a cylindrical section 20 suitable for storage. With the bearing pin 17, the auxiliary shaft 16 engages in a bearing opening 21 in a lower, angled end part 22 of the carrier plate 3 a. The cylindrical section 20 lies in an approximately half-shell-shaped recess 23 (FIG. 2) of the carrier plate 3. In this position, the auxiliary shaft 16 is secured by a cover piece 24.

Die Hilfswelle 16 besitzt an ihrem dem Lagerzapfen 17 gegenüberliegenden Ende einen Tastfinger 25, dessen Form im einzelnen der Figur 4 zu entnehmen ist. Mit diesem Tastfinger wirkt die Hilfswelle 16 mit einem Fortsatz 26 des Mitnehmers 14 zusammen, so daß auf diese Weise die Bewegungen der Hilfswelle 16 auf die Auslösewelle 13 übertragen werden können. Wie die Figur 2 zeigt, ist der Tastfinger 25 so bemessen, daß er nicht in den Weg eines Auslöseorgans 27 des Hilfsauslösers 10 hineinragt und dieses Auslöseorgan somit unmittelbar auf den Fortsatz 26 des Mitnehmers 14 einwirken kann.The auxiliary shaft 16 has at its end opposite the journal 17 a finger 25, the shape of which can be seen in detail in FIG. With this touch finger, the auxiliary shaft 16 interacts with an extension 26 of the driver 14, so that the movements of the auxiliary shaft 16 can be transmitted to the trigger shaft 13 in this way. As FIG. 2 shows, the tactile finger 25 is dimensioned such that it does not protrude into the path of a trigger element 27 of the auxiliary trigger 10 and this trigger element can thus act directly on the extension 26 of the driver 14.

Weitere, in den Figuren 2 und 3 näher ersichtliche Tastfinger 30, 31 und 32 der Hilfswelle 16 befinden sich im Bereich des Hilfsauslösers 7, wobei das Auslöseorgan 15 mit dem Tastfinger 32 zusammenwirkt. Wird der Montageplatz der Trägerplatte 3, an dem sich in den Figuren 1 und 2 der Hilfsauslöser 7 befindet, mit anderen Hilfsauslösern bestückt, so kann mit der Auslösekraft auch der Tastfinger 30 oder der Tastfinger 31 beaufschlagt werden. Die Auslöse­bewegung wird stets mittels der Hilfswelle 16 auf die Aus­lösewelle 13 übertragen.Further tactile fingers 30, 31 and 32 of the auxiliary shaft 16, which can be seen in greater detail in FIGS. 2 and 3, are located in the region of the auxiliary trigger 7, the triggering element 15 interacting with the tactile finger 32. If the mounting location of the support plate 3, at which in FIGS Auxiliary trigger 7 is located, equipped with other auxiliary triggers, so the trigger force can also be applied to the touch finger 30 or the touch finger 31. The trigger movement is always transmitted to the trigger shaft 13 by means of the auxiliary shaft 16.

Ferner ist die Auslösewelle 16 mit einem Fortsatz 33 versehen, der nahe dem Tastfinger 25 angeordnet ist. Die Gestalt dieses Fortsatzes geht näher aus den Figuren 3 und 5 hervor. Wie zu erkennen ist, ist der Fortsatz 33 mit einer Durchgangsöffnung 34 versehen, die zum Einhängen einer Schraubenzugfeder dient, um eine Rückstellkraft in die Hilfswelle 16 einleiten zu können.Furthermore, the trigger shaft 16 is provided with an extension 33 which is arranged near the touch finger 25. The shape of this extension is shown in more detail in FIGS. 3 and 5. As can be seen, the extension 33 is provided with a through opening 34, which is used to hang a helical tension spring in order to be able to introduce a restoring force into the auxiliary shaft 16.

Bei dem Hilfsauslöser 11 handelt es sich, wie bereits erwähnt, um eine Wiedereinschaltsperre. Dabei handelt es sich um ein Magnetsystem, das in seiner Ruhestellung mittels eines Permanentmagneten oder durch dauernde Erregung angezogen ist und das durch Entregung oder Überwindung der Haltekraft des Permanentmagneten freigebbar ist. Ein Federspeicher bringt dann den Hilfsauslöser in den ausgelösten Zustand, in dem eine Zugstange 35 mit einem abgewinkelten Ende 36 einen weiteren Fortsatz 37 des Mitnehmers 14 beaufschlagt. Die Auslösewelle 13 bleibt dann solange in ihrer Auslösestellung, bis die Wiedereinschalt­sperre zurückgestellt wird. Mittels der Zugstange 37 wird in der in der Figur 1 dargestellten Weise zugleich ein Hilfs­schalter 40 betätigt, der somit die Stellung der Auslöse­welle 13 signalisiert.As already mentioned, the auxiliary release 11 is a restart lock. It is a magnet system which is attracted in its rest position by means of a permanent magnet or by permanent excitation and which can be released by de-excitation or overcoming the holding force of the permanent magnet. A spring mechanism then brings the auxiliary release into the released state, in which a pull rod 35 with an angled end 36 acts on a further extension 37 of the driver 14. The trigger shaft 13 then remains in its trigger position until the restart lock is reset. An auxiliary switch 40 is actuated by means of the pull rod 37 in the manner shown in FIG. 1, which thus signals the position of the trigger shaft 13.

Ein dritter Fortsatz 41 des Mitnehmers 14 ist dazu vorge­sehen, eine Auslösebewegung durch einen nicht dargestellten Betätigungsmagneten in der Richtung eines Pfeiles 42 auf die Auslösewelle 13 zu übertragen. Dieser Betätigungsmagnet kann insbesondere durch eine elektronische Auslöseeinheit ge­steuert sein, die auf Überstrom und Kurzschluß gemäß vor­gegebenen Kennlinien anspricht.A third extension 41 of the driver 14 is provided to transmit a trigger movement by an actuating magnet, not shown, in the direction of an arrow 42 to the trigger shaft 13. This actuating magnet can in particular be controlled by an electronic tripping unit which responds to overcurrent and short-circuit in accordance with predefined characteristic curves.

In der Figur 6 ist eine der Trägerplatte 3 in den Figuren 1 und 2 weitgehend entsprechende Trägerplatte 50 lediglich zusammen mit einer Auslösewelle 51 gezeigt. Aufgrund dieser Darstellung sind die Montageplätze der Trägerplatte für die Hilfsauslöser erkennbar. Insgesamt sind vier Montageplätze 52, 53, 54 und 55 vorgesehen, die mit geeigneten Befesti­gungsmitteln, beispielsweise den im Bereich der Montage­plätze 53, 54 und 55 gezeigten Bohrungen oder Durchgangs­löchern 56, 57 und 58 versehen. Im Bereich des Montage­platzes 52 ist die Trägerplatte 50 rahmenartig mit einer Durchbrechung 60 ausgebildet. An dieser Stelle steht somit die größtmögliche Montagetiefe zur Verfügung, da ein hier zu montierender Hilfsauslöser - abgesehen von einem notwendigen geringen Zwischenraum - bis zu der Wand 2 (Figuren 1 und 2) reichen kann. In der Figur 6 ist ferner eine Schraubenzugfeder 64 gezeigt, die an der Hilfswelle 51 in derselben Weise angreift, wie dies anhand der Figuren 3 und 5 am Beispiel der Hilfswelle 16 erläutert wurde.In FIG. 6, a carrier plate 50 largely corresponding to the carrier plate 3 in FIGS. 1 and 2 is shown only together with a trigger shaft 51. Based on this representation, the mounting locations of the carrier plate can be recognized by the auxiliary releases. A total of four assembly stations 52, 53, 54 and 55 are provided, which are provided with suitable fastening means, for example the bores or through holes 56, 57 and 58 shown in the region of the assembly stations 53, 54 and 55. In the area of the assembly site 52, the carrier plate 50 is designed like a frame with an opening 60. At this point, the greatest possible installation depth is available, since an auxiliary release to be installed here - apart from a necessary small space - can extend to wall 2 (FIGS. 1 and 2). FIG. 6 also shows a tension coil spring 64 which acts on the auxiliary shaft 51 in the same manner as was explained with reference to FIGS. 3 and 5 using the example of the auxiliary shaft 16.

Je nach der gewünschten Ausrüstung des Leistungsschalters kann die Trägerplatte 50 mit einem oder mehreren Hilfsaus­lösern bis zu der vorgesehenen maximalen Bestückung von vier Hilfsauslösern versehen werden. Im Bereich des Montage­platzes 52 können unterschiedliche Hilfsauslöser montiert werden. Als Beispiel hierfür zeigt die Figur 7 die Bestückung des Montageplatzes 52 mit einem Arbeitsstrom­auslöser 61, der nur eine verhältnismäßig geringe Größe aufweist und damit den zur Verfügung stehenden Platz nur teilweise ausnutzt. Ein ordnungsgemäßes Zusammenwirken des Auslöseorgans 62 des Arbeitsstromauslösers 61 mit der Hilfswelle 51 ist dadurch gewährleistet, daß diese in der schon beschriebenen Weise nebeneinander befindliche Tast­finger besitzt.Depending on the desired equipment of the circuit breaker, the carrier plate 50 can be provided with one or more auxiliary triggers up to the intended maximum configuration of four auxiliary triggers. Different auxiliary releases can be installed in the area of the assembly site 52. As an example of this, FIG. 7 shows the assembly location 52 being equipped with a shunt release 61 which is only of a relatively small size and thus only partially utilizes the available space. Proper interaction of the release member 62 of the shunt release 61 with the auxiliary shaft 51 is ensured by the fact that the latter has adjacent finger fingers in the manner already described.

In der Figur 8 ist ein größerer Hilfsauslöser 63 gezeigt, z. B. ein Unterspannungsauslöser, der dementsprechend in die Durchbrechung 60 der Trägerplatte 50 eintaucht und den Montageplatz 52 vollständig ausnutzt.A larger auxiliary release 63 is shown in FIG. B. an undervoltage release, which accordingly dips into the opening 60 of the support plate 50 and fully utilizes the assembly space 52.

Die weiteren Montageplätze 53, 54 und 55 sind zwar in dem dargestellten Beispiel jeweils zur Bestückung mit einem bestimmten Typ eines Hilfsauslösers vorgesehen; es ist jedoch leicht zu erkennen, daß auch diese Montageplätze im Bedarfsfall mit Hilfsauslösern unterschiedlicher Funktion und Größe ausgestattet sein können.The other assembly stations 53, 54 and 55 are each provided in the example shown for being equipped with a specific type of auxiliary release; However, it is easy to see that these assembly stations can also be equipped with auxiliary releases of different functions and sizes if necessary.

Claims (7)

1. Anordnung zur Montage von Hilfsauslösern (7, 10, 11, 12; 61, 63) in einem wenigstens eine Auslösewelle (13) sowie als Bestandteil seines Tragwerkes eine Wand (2) aufweisenden Schaltgerät, gekennzeichnet durch eine für die umfangreichste, in Betracht kommende Bestückung mit Hilfsauslösern (7, 10, 11, 12; 61, 63) bemessene Trägerplatte (3), die an der Wand (2) mittels vorbereiteter Befestigungsmittel (4, 8) maßgerecht anbringbar ist und die eine Hilfswelle (16) zur Übertragung der Auslösebewegungen der Hilfsauslöser (7, 10, 11, 12; 61, 63) auf die Auslöse­welle (13) aufweist.1. Arrangement for mounting auxiliary releases (7, 10, 11, 12; 61, 63) in at least one release shaft (13) and as part of its supporting structure a wall (2) having switching device, characterized by one for the most extensive Coming with auxiliary triggers (7, 10, 11, 12; 61, 63) sized support plate (3), which can be attached to the wall (2) by means of prepared fasteners (4, 8) and which has an auxiliary shaft (16) for transmission the release movements of the auxiliary releases (7, 10, 11, 12; 61, 63) on the release shaft (13). 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Hilfswelle (16) zur Beaufschlagung durch Auslöseorgane (15) der Hilfsaus­löser (7) vorgesehene Tastfinger (30, 31, 32) besitzt und daß die Länge und Anordnung der Tastfinger (30, 31, 32) entsprechend der bei unterschiedlicher Bestückung der Trägerplatte (3) mit Hilfsauslösern möglichen Lage der Auslöseorgane (15) angepaßt ausgebildet ist.2. Arrangement according to claim 1, characterized in that the auxiliary shaft (16) for action by triggering elements (15) of the auxiliary trigger (7) provided tactile fingers (30, 31, 32) and that the length and arrangement of the tactile fingers (30, 31 , 32) is adapted to the position of the trigger elements (15) which is possible with different mounting of the carrier plate (3) with auxiliary triggers. 3. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Hilfswelle (16) an einem Ende einen Lagerzapfen (17) sowie in einem ge­eigneten Abstand hiervon wenigstens einen zur Lagerung in einer halbschalenartigen Ausnehmung (23) der Träger­platte (3) vorgesehenen Wellenabschnitt (20) besitzt.3. Arrangement according to claim 1, characterized in that the auxiliary shaft (16) at one end a bearing pin (17) and at a suitable distance therefrom at least one shaft portion (20) provided for storage in a half-shell-like recess (23) of the carrier plate (3) ) has. 4. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Trägerplatte (50) zur Aufnahme bestimmter Bauarten von Hilfsauslösern (61, 63) bemessene Montageplätze (52, 53, 54, 55) besitzt, wobei wenigstens einer der Montageplätze (52) zur wahlweisen Bestückung mit Hilfsauslösern (61, 63) von unterschiedlicher Funktion und/oder Größe ausgebildet und die Trägerplatte (50) im Bereich dieses Montageplatzes (52) zur Erzielung einer größtmöglichen Montagetiefe rahmenartig (Durchbrechung 60) ausgebildet ist.4. Arrangement according to claim 1, characterized in that the carrier plate (50) for receiving certain types of auxiliary releases (61, 63) has dimensioned mounting locations (52, 53, 54, 55), at least one of the mounting locations (52) being optional Equipped with auxiliary releases (61, 63) of different Function and / or size and the support plate (50) in the area of this assembly space (52) is frame-shaped (opening 60) to achieve the greatest possible installation depth. 5. Anordnung nach Anspruch 4, dadurch gekennzeichnet, daß die Hilfswelle (16) im Bereich des wahlweise bestückbaren Montageplatzes mit zwei oder mehreren Tastfingern (31, 31, 32) in einer den unterschiedlichen Bestückungen nach Größe und Stellung angepaßten Gestaltung versehen ist.5. Arrangement according to claim 4, characterized in that the auxiliary shaft (16) is provided in the region of the optional assembly space with two or more touch fingers (31, 31, 32) in a design adapted to the different configurations according to size and position. 6. Anordnung nach anspruch 1, dadurch gekennzeichnet, daß die Hilfswelle (16) einen Tastfinger (25) zur Beaufschlagung eines auf der Auslösewelle (13) sitzenden Mitnehmers (14) besitzt und daß der Mitnehmer (14) mit wenigstens einer zusätzlichen Arbeitsfläche (26) zur direkten Beaufschlagung durch einen der Hilfsauslöser (10) versehen ist.6. Arrangement according to claim 1, characterized in that the auxiliary shaft (16) has a touch finger (25) for acting on a on the release shaft (13) seated driver (14) and that the driver (14) with at least one additional work surface (26 ) is provided for direct loading by one of the auxiliary releases (10). 7. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Trägerplatte (3) wenigstens einen Montageplatz für einen weiteren, mit einer zusätzlichen Auslösewelle des Schaltgerätes zusammenwirken­den Hilfsauslöser (12) besitzt.7. Arrangement according to claim 1, characterized in that the carrier plate (3) has at least one assembly place for a further, with an additional trigger shaft of the switching device cooperating auxiliary release (12).
EP87730034A 1986-04-08 1987-04-06 Mounting arrangement for auxiliary tripping units Expired - Lifetime EP0241412B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863612119 DE3612119A1 (en) 1986-04-08 1986-04-08 ARRANGEMENT FOR ASSEMBLY OF AUXILIARY TRIGGER
DE3612119 1986-04-08

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EP0241412A1 true EP0241412A1 (en) 1987-10-14
EP0241412B1 EP0241412B1 (en) 1992-03-04

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EP0353949A2 (en) * 1988-08-01 1990-02-07 Eaton Corporation Modular option deck assembly
EP0951045A2 (en) * 1998-04-14 1999-10-20 ABBPATENT GmbH Ground fault circuit braker
CN105336522A (en) * 2015-11-09 2016-02-17 川开电气有限公司 Fuse tripping interlocking mechanism

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DE3909553A1 (en) * 1989-03-20 1990-09-27 Siemens Ag CIRCUIT BREAKER WITH UNDERVOLTAGE RELEASE
DE4421150C1 (en) * 1994-06-10 1996-01-04 Siemens Ag Auxiliary release device fixing system for LV power switch
DE19802921A1 (en) * 1998-01-21 1999-07-22 Siemens Ag Low voltage (LV) power switch with auxiliary release, such as cut-in magnet
DE19806345A1 (en) * 1998-02-12 1999-08-19 Siemens Ag Method and device for operating a circuit breaker
CZ300000B6 (en) * 2001-09-10 2009-01-14 Lekov A.S. Current overload circuit breaker of direct current circuit
DE10246479B4 (en) * 2002-09-27 2004-09-09 Siemens Ag Low voltage circuit breaker with additional quick trip
CN106229235A (en) * 2016-08-13 2016-12-14 郑文秀 A kind of automatic reclosing drive mechanism

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Publication number Priority date Publication date Assignee Title
EP0353949A2 (en) * 1988-08-01 1990-02-07 Eaton Corporation Modular option deck assembly
EP0353949A3 (en) * 1988-08-01 1991-07-31 Eaton Corporation Modular option deck assembly
EP0951045A2 (en) * 1998-04-14 1999-10-20 ABBPATENT GmbH Ground fault circuit braker
EP0951045A3 (en) * 1998-04-14 2000-07-12 ABBPATENT GmbH Ground fault circuit braker
CN105336522A (en) * 2015-11-09 2016-02-17 川开电气有限公司 Fuse tripping interlocking mechanism

Also Published As

Publication number Publication date
DE3612119A1 (en) 1987-10-22
DE3776942D1 (en) 1992-04-09
EP0241412B1 (en) 1992-03-04

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