EP2016605B1 - Circuit breaker for motor protection and/or line protection - Google Patents

Circuit breaker for motor protection and/or line protection Download PDF

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Publication number
EP2016605B1
EP2016605B1 EP07724598A EP07724598A EP2016605B1 EP 2016605 B1 EP2016605 B1 EP 2016605B1 EP 07724598 A EP07724598 A EP 07724598A EP 07724598 A EP07724598 A EP 07724598A EP 2016605 B1 EP2016605 B1 EP 2016605B1
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EP
European Patent Office
Prior art keywords
control unit
circuit breaker
actuating
base module
plugged
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Active
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EP07724598A
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German (de)
French (fr)
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EP2016605A1 (en
Inventor
Günter Baujan
Klaus Dauer
Anke JÜLICH
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Eaton Electrical IP GmbH and Co KG
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Eaton Electrical IP GmbH and Co KG
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Priority to PL07724598T priority Critical patent/PL2016605T3/en
Publication of EP2016605A1 publication Critical patent/EP2016605A1/en
Application granted granted Critical
Publication of EP2016605B1 publication Critical patent/EP2016605B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7409—Interchangeable elements
    • 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
    • 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
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • 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
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection

Definitions

  • the invention relates to a manually operated circuit breaker for motor protection and / or line protection.
  • Such circuit breakers essentially comprise a base assembly, a manual actuator, an electronic control unit, an actuator unit and a trigger.
  • a manual actuating device at least the switching mechanism is actuated via a rotary knob and via an actuating shaft, wherein the actuating device is accommodated in a housing part projecting to the operating front, and the actuating shaft is arranged perpendicular to the operating front.
  • the knob protrudes on the front and can preferably also be designed lockable.
  • circuit breakers As a circuit breaker such circuit breakers are known which are tuned in their tripping behavior (up to multiple starting current) to be protected electric motor, or serve as a circuit breaker to protect electrical lines or equipment against thermal overload or short-circuit damage.
  • the tripping behavior and thus the use of such circuit breakers are determined by the thermal and the short-circuit tripping values.
  • Examples of constructed according to the modular principle modular circuit breaker are in the DE 36 42 719 A1 or in the WO 01-27958 A1 described.
  • Another motor protection switch can also be equipped with replaceable overcurrent release module ( CH-PS 319019 ). In this case, an operator can set up different trigger modules, which differ in different current ranges or different inertia classes.
  • a trigger module should not be able to be pulled in the ON position of the circuit breaker.
  • a safety device provided in the form of a flap.
  • the window is designed such that the operating knob in the ON position engages over the edges of the window so that the shutter module can not be pulled out of the inserted position.
  • the safety device (the flap) is a very elaborately designed part.
  • a circuit breaker which can be modularly expanded by plugging replaceable add-on modules.
  • the circuit breaker has a prismatic housing part protruding toward the operating front, on which two contact surfaces and contact surfaces are formed perpendicular to the front panel.
  • the additional modules can be plugged directly into the circuit breaker in this prior art or they are separated from the circuit breaker on a base (mounting rail) attached.
  • a circuit breaker comprising a base assembly, an exchangeable protection and control device, and an electromechanical control module assembled with the base assembly.
  • the manual circuit of the circuit breaker by means of a fixedly attached to the control module or on the base assembly manual actuator.
  • circuit breakers In such and similar circuit breakers is disadvantageous that the modular assembly is possible regardless of whether the circuit breaker is in the ON position or not.
  • the invention has for its object to provide for a circuit breaker modular assembly with at least one replaceable control unit, on the one hand different features with the control unit are adjustable and on the other hand a backup function is available, where only under certain conditions, the exchange is possible.
  • the electronic control unit is designed as a module which can be plugged into the base module, and the electrical supply energy supplying the consumer is looped through the control unit.
  • the control unit also includes another protective function for the operation of the consumer protected by the circuit breaker.
  • the control unit (in particular in the form of its electronic circuit) draws its power supply and the detection data from the main circuit of the circuit breaker.
  • the electronic circuit is the center of the control unit.
  • the circuit is supplied as input and measurement signals via current transformers the parameters of the current flowing through the main current paths. The control unit thus always works when the circuit breaker at least one of the underlying consumers power. To insert the control unit on the base assembly contact means are present.
  • the control unit is set to specific control variables for an error case in which the circuit breaker has to turn off.
  • the settings can preferably also be changed by an operator to different control variables on externally accessible rotary knobs.
  • control variables the inertia of the cutoff and a fault current exceeding a certain rated current are primarily predetermined and / or adjustable. Such residual current criteria are also covered by international standards (EN 60947), where, for example, tripping times are assigned to different groups of rated currents.
  • EN 60947 international standards
  • the control unit activates the switching mechanism via the actuator unit, which causes the contacts of the main flow paths to open.
  • the core of the actuator is an energy storage, which causes the accelerated loading of the switching mechanism.
  • the circuit breaker may include a short circuit quick release, which has a mechanical operative connection also acts on the switching apparatus.
  • the circuit breaker with the described basic module forms a basic unit, in which the customer / operator can predetermine and / or change individual functional features by replacing the control unit and / or the trigger module.
  • circuit breaker may be pluggable in or on the base assembly, or otherwise assembled with the circuit breaker.
  • circuit breaker there is the advantage of a basic unit in which functions for use can be set in a simple and reliable manner or, if necessary, their values can be changed.
  • the control unit can be pulled before working on the electrical system or on an electric motor to be protected, with a visible separation point is formed and the cable is safely interrupted.
  • the power supply is expediently carried out via current transformers. It is of considerable advantage if the openings for the plug contacts are finger-proof and thus secured against unintentional contact.
  • the trigger can be equipped with a function in case of undervoltage.
  • one of the actuator which is designed as an operating knob or as an assembly manual rotary drive, operated locking device is provided which is formed on the actuating shaft and can be activated by rotation of the actuating shaft.
  • the locking device blocks in the ON position of the circuit breaker pulling the control unit.
  • the locking device consists of an acted upon by the actuating shaft and operable mechanical locking means which blocks the plug movement of the control unit or releases.
  • One advantage is that there is a secure lock against unauthorized or unauthorized changing of the control unit.
  • the locking device enters the path of the control unit to be inserted and blocks the movement of the control unit.
  • the locking takes place autonomously without additional operation from the outside by the rotation of the actuating shaft. By locking a secure fixation of the control unit is ensured with the circuit breaker. When switched on, the pulling of the control unit is blocked by the locking device activated by the locking device.
  • the control unit can only be removed and replaced when the circuit breaker is switched off.
  • the circuit breaker there may be a device for sealing a control unit inserted on the base module.
  • the manual actuator may be lockable. This means that the knob can be locked in the ON position of the switch with a lock. In such an arrangement, it is not possible to operate or turn off the knob in the ON position.
  • the figure relates to a circuit breaker, which is part of a mating switch combination whose components are designed according to the modular system.
  • the components of the kit are - as far as is relevant to the present application: the base assembly 100, which essentially comprises the contact apparatus 107 and the switching mechanism 140; the trigger module 120; the actuator unit (clamping unit) 110; the pluggable control unit 130 and the manual operating device.
  • the control unit 130 can be inserted on the switch housing adjacent to the projecting housing part parallel to the axis of the actuating rotary knob.
  • the mechanical Plug and separability is indicated in the figure by the dashed line 20.
  • contact means plug contacts 102,104
  • contact means plug contacts 102,104
  • contact means 134
  • the guide and connector elements cooperate with corresponding elements (receiving elements or contact sockets).
  • a separation distance between plug contacts and contact sockets It is advantageous if this separation distance is visible when the control unit is not plugged in.
  • input and output contacts main current paths, which may be in particular three-phase, and the contact apparatus 107 are indicated.
  • In the middle of the assembly arrangement is projecting a prismatic housing part with an operating front, which lies opposite the mounting surface.
  • the mounting surface is located on the back of the circuit breaker and serves primarily for mounting on a mounting rail.
  • the aforementioned housing part essentially comprises a device for actuating at least one switching mechanism (107) of the circuit breaker for opening and closing conductor paths (102, 104), which is manually operable with an actuating shaft 45 via an actuating rotary knob 150.
  • the actuating shaft 45 is arranged perpendicular to the front panel and the mounting surface (on the back of the circuit breaker). On the housing part, a connection surface for the plug-in control unit is formed perpendicular to the front panel.
  • the Anschfuss preparation has - not shown - linear guide elements and connector or contact means.
  • a contact 134 consisting of at least one contact pair to the actuator unit 110 is present.
  • the circuit breaker is operated on the operation knob 150, with which an OFF and ON position with a rotation of 90 ° is switchable.
  • the ON position the switching contacts 107 are closed.
  • the switch contacts of the circuit breaker can be manually opened by a first rotation of the drive shaft via the operating knob.
  • the drive shaft releases the switch lock in the switch drive mechanism and opens the switch contacts.
  • a short turn in the opposite direction is sufficient to operate the switch lock.
  • a full 90 ° turn is not required.
  • When automatically switching off in case of failure and opening the switch contacts forcibly drives the drive shaft. In the switched-off state of the circuit breaker, there are switching mechanism and switching contacts open, it is not possible to immediately put the circuit breaker in the on state.
  • the mechanical energy storage of the release module must first be tightened. For this purpose, with a left turn of the operating knob (and the drive shaft) from the OFF position by about 20 ° to 30 ° (ie in the opposite direction to the ON-switching movement), the trigger module is activated.
  • the individual components may be plugged into or onto the base assembly, or assembled in other ways. However, it is essential in connection with the claimed subject matter that the control unit 130 and the assembly manual rotary drive 150 are pluggable.
  • the trigger module 120 is preferably also designed to be exchangeable, wherein it can be inserted next to the prismatic housing part parallel to the axis of the actuating rotary knob.
  • the release module has plug contacts that can be plugged into corresponding contact sockets on the basic module. It is also essential that the control unit in the blocking state of the locking device can only be plugged in so far that there is still a separation distance between plug contacts and contact sockets, or in particular visible.

Description

Technisches GebietTechnical area

Die Erfindung betrifft einen handbetätigten Schutzschalter für Motorschutz und/oder Leitungsschutz. Solche Schutzschalter umfassen im wesentlichen eine Basisbaugruppe, eine manuelle Betätigungsvorrichtung, eine elektronische Steuereinheit, eine Aktoreinheit und einen Auslöser. Mit einer manuellen Betätigungsvorrichtung wird über einen Drehknopf und über eine Betätigungswelle mindestens der Schaltmechanismus betätigt, wobei die Betätigungsvorrichtung in einem zur Bedienfront auskragenden Gehäuseteil untergebracht ist, und die Betätigungswelle senkrecht zur Bedienfront angeordnet ist. Der Drehknopf ragt auf der Bedienfront vor und kann vorzugsweise auch abschließbar gestaltet sein.The invention relates to a manually operated circuit breaker for motor protection and / or line protection. Such circuit breakers essentially comprise a base assembly, a manual actuator, an electronic control unit, an actuator unit and a trigger. With a manual actuating device, at least the switching mechanism is actuated via a rotary knob and via an actuating shaft, wherein the actuating device is accommodated in a housing part projecting to the operating front, and the actuating shaft is arranged perpendicular to the operating front. The knob protrudes on the front and can preferably also be designed lockable.

Stand der TechnikState of the art

Als Motorschutzschalter sind derartige Schutzschalter bekannt, die in ihrem Auslöseverhalten (bis zum mehrfachen Anlaufstrom) auf den zu schützenden Elektromotor abgestimmt sind, oder als Leitungsschutzschalter zum Schutz von elektrischen Leitungen oder Anlagen gegen thermische Überlastung oder Kurzschlussschäden dienen. Das Auslöseverhalten und damit der Einsatz derartiger Schutzschalter werden bestimmt von den thermischen und den Kurzschluss-Auslösewerten.As a circuit breaker such circuit breakers are known which are tuned in their tripping behavior (up to multiple starting current) to be protected electric motor, or serve as a circuit breaker to protect electrical lines or equipment against thermal overload or short-circuit damage. The tripping behavior and thus the use of such circuit breakers are determined by the thermal and the short-circuit tripping values.

Beispiele für nach dem Baukastenprinzip aufgebaute modulare Schutzschalter sind in der DE 36 42 719 A1 oder in der WO 01-27958 A1 beschrieben. Ein anderer Motorsschutzschalter kann auch mit auswechselbarem Überstrom-Auslöser-Modul ausgerüstet sein ( CH-PS 319019 ). Dabei kann ein Bediener unterschiedliche Auslöser-Module aufsetzen, die sich durch unterschiedliche Strombereiche, bzw. unterschiedliche Trägheitsklassen unterscheiden.Examples of constructed according to the modular principle modular circuit breaker are in the DE 36 42 719 A1 or in the WO 01-27958 A1 described. Another motor protection switch can also be equipped with replaceable overcurrent release module ( CH-PS 319019 ). In this case, an operator can set up different trigger modules, which differ in different current ranges or different inertia classes.

Aus sicherheitstechnischen Gründen soll ein Auslöser-Modul nicht in der Stellung EIN des Schutzschalters gezogen werden können. Hierzu ist in der DE 36 42 719 A1 ein Sicherheitseinrichtung in Form einer Klappe vorgesehen. In der Klappe ist ein Fenster vorhanden, durch das der Betätigungsdrehknopf hindurch greift. Das Fenster ist derart ausgebildet, dass der Betätigungsdrehknopf in der EIN-Stellung die Ränder des Fensters sperrend übergreift, so dass das Auslöser-Modul aus der gesteckten Stellung nicht ziehbar ist. Die Sicherheitseinrichtung (die Klappe) ist ein sehr aufwändig gestaltetes Teil.For safety reasons, a trigger module should not be able to be pulled in the ON position of the circuit breaker. This is in the DE 36 42 719 A1 a safety device provided in the form of a flap. In the flap there is a window through which the operating knob engages. The window is designed such that the operating knob in the ON position engages over the edges of the window so that the shutter module can not be pulled out of the inserted position. The safety device (the flap) is a very elaborately designed part.

In der DE 195 15 923 A1 ist ein Schutzschalter beschrieben, welcher modular erweitert werden kann durch das Anstecken von austauschbaren Zusatzmodulen. Der Schutzschalter hat ein zur Bedienfront hin hervorstehendes prismatisches Gehäuseteil, an dem senkrecht zur Bedienfront zwei Anschlussflächen und Kontaktflächen ausgebildet sind. Die Zusatzmodule können bei diesem Stand der Technik direkt an den Schutzschalter gesteckt werden oder sie werden getrennt vom Schutzschalter auf einer Unterlage (Tragschiene) befestigt.In the DE 195 15 923 A1 a circuit breaker is described, which can be modularly expanded by plugging replaceable add-on modules. The circuit breaker has a prismatic housing part protruding toward the operating front, on which two contact surfaces and contact surfaces are formed perpendicular to the front panel. The additional modules can be plugged directly into the circuit breaker in this prior art or they are separated from the circuit breaker on a base (mounting rail) attached.

In der WO 01/27958 A1 ist ein Schutzschalter beschrieben, der eine Basisbaugruppe, eine austauschbare Schutz- und Kontrollvorrichtung sowie ein mit der Basisbaugruppe zusammengesetztes elektromechanisches Kontrollmodul umfasst. Die manuelle Schaltung des Schutzschalters erfolgt mittels einer fest am Kontrollmodul bzw. an der Basisbaugruppe befestigten manuellen Betätigungsvorrichtung.In the WO 01/27958 A1 there is described a circuit breaker comprising a base assembly, an exchangeable protection and control device, and an electromechanical control module assembled with the base assembly. The manual circuit of the circuit breaker by means of a fixedly attached to the control module or on the base assembly manual actuator.

Bei solchen und ähnlichen Schutzschalter ist von Nachteil, dass der modulare Zusammenbau unabhängig davon möglich ist, ob sich der Schutzschalter in der EIN-Stellung befindet oder nicht.In such and similar circuit breakers is disadvantageous that the modular assembly is possible regardless of whether the circuit breaker is in the ON position or not.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, bei einem Schutzschalter einen modularen Zusammenbau mit mindestens einer austauschbaren Steuereinheit zu ermöglichen, wobei einerseits unterschiedliche Funktionsmerkmale mit der Steuereinheit einstellbar sind und andererseits eine Sicherungsfunktion vorhanden ist, wo nur unter bestimmten Bedingungen der Austausch möglich ist.The invention has for its object to provide for a circuit breaker modular assembly with at least one replaceable control unit, on the one hand different features with the control unit are adjustable and on the other hand a backup function is available, where only under certain conditions, the exchange is possible.

Die Aufgabe wird gemäß der Erfindung im wesentlichen durch die Merkmale des Anspruches 1 gelöst, während in den Unteransprüchen besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.The object is achieved according to the invention essentially by the features of claim 1, while in the dependent claims particularly advantageous developments of the invention are characterized.

Der Kern der Erfindung besteht darin, dass die elektronische Steuereinheit als ein auf die Basisbaugruppe steckbares Modul ausgebildet ist, und die den Verbraucher versorgende elektrische Versorgungsenergie durch die Steuereinheit hindurchgeschleift ist. Die Steuereinheit umfasst auch eine weitere Schutzfunktion für den Betrieb des vom Schutzschalter geschützten Verbrauchers. Weiterhin bezieht die Steuereinheit (insbesondere in Form ihrer Elektronikschaltung) ihre Spannungsversorgung und die Erfassungsdaten aus der Hauptstrombahn des Schutzschalters. Die Elektronikschaltung ist das Zentrum der Steuereinheit. Der Schaltung werden als Eingangs- und Messsignale über Stromwandler die Parameter des durch die Hauptstrombahnen fließenden Stroms zugeführt. Die Steuereinheit arbeitet somit immer, wenn der Schutzschalter mindestens einer der dahinterliegenden Verbraucher Strom führen. Zum Stecken der Steuereinheit auf die Basisbaugruppe sind Kontaktmittel vorhanden.The essence of the invention is that the electronic control unit is designed as a module which can be plugged into the base module, and the electrical supply energy supplying the consumer is looped through the control unit. The control unit also includes another protective function for the operation of the consumer protected by the circuit breaker. Furthermore, the control unit (in particular in the form of its electronic circuit) draws its power supply and the detection data from the main circuit of the circuit breaker. The electronic circuit is the center of the control unit. The circuit is supplied as input and measurement signals via current transformers the parameters of the current flowing through the main current paths. The control unit thus always works when the circuit breaker at least one of the underlying consumers power. To insert the control unit on the base assembly contact means are present.

Die Steuereinheit ist auf bestimmte Steuergrößen für einen Fehlerfall, in denen der Schutzschalter abzuschalten hat, eingestellt. Die Einstellungen können vorzugsweise auch von einer Bedienperson auf unterschiedliche Steuergrößen an von außen zugänglichen Drehknöpfen verändert werden. Als Steuergrößen sind vorrangig die Trägheit der Abschaltung und ein einen bestimmten Nennstrom übersteigender Fehlerstrom vorgegeben und/oder einstellbar. Solche Fehlerstromkriterien sind auch von internationalen Normen (EN 60947) erfasst, wo beispielsweise Auslösezeiten verschiedenen Gruppen von Nennströmen zugeordneten sind. Bei Auftreten des Fehlers steuert die Steuereinheit über die Aktoreinheit den Schaltmechanismus an, wodurch es zum Öffnen der Kontakte der Hauptstrombahnen kommt. Der Kern der Aktoreinheit ist ein Kraftspeicher, welcher die beschleunigte Beaufschlagung des Schaltschlosses bewirkt. Zum Schutzschalter kann ein Kurzschluss-Schnellauslöser gehören, der über eine mechanische Wirkverbindung ebenfalls auf den Schaltapparat einwirkt. Der Schutzschalter mit der beschriebenen Basisbaugruppe bildet ein Grundgerät, bei dem der Kunde/Bediener durch Auswechseln der Steuereinheit und/oder des Auslöser-Moduls individuelle Funktionsmerkmale vorbestimmen und/oder ändern kann.The control unit is set to specific control variables for an error case in which the circuit breaker has to turn off. The settings can preferably also be changed by an operator to different control variables on externally accessible rotary knobs. As control variables, the inertia of the cutoff and a fault current exceeding a certain rated current are primarily predetermined and / or adjustable. Such residual current criteria are also covered by international standards (EN 60947), where, for example, tripping times are assigned to different groups of rated currents. When the fault occurs, the control unit activates the switching mechanism via the actuator unit, which causes the contacts of the main flow paths to open. The core of the actuator is an energy storage, which causes the accelerated loading of the switching mechanism. The circuit breaker may include a short circuit quick release, which has a mechanical operative connection also acts on the switching apparatus. The circuit breaker with the described basic module forms a basic unit, in which the customer / operator can predetermine and / or change individual functional features by replacing the control unit and / or the trigger module.

Es können auch weitere Einzelkomponenten in oder auf die Basisbaugruppe steckbar sein, oder auf andere Weise mit dem Schutzschalter zusammengebaut sein. Mit dem erfindungsgemäßen Schutzschalter ergibt sich der Vorteil eines Grundgeräts, bei dem auf einfache und sichere Weise Funktionen für den Einsatz eingestellt oder, falls erforderlich, in seinen Werten verändert werden können. Gleichzeitig kann vor Arbeiten an der elektrischen Anlage oder an einem zu schützenden Elektromotor die Steuereinheit gezogen werden, wobei eine sichtbare Trennstelle entsteht und der Leitungszug sicher unterbrochen ist.Other individual components may be pluggable in or on the base assembly, or otherwise assembled with the circuit breaker. With the circuit breaker according to the invention there is the advantage of a basic unit in which functions for use can be set in a simple and reliable manner or, if necessary, their values can be changed. At the same time, the control unit can be pulled before working on the electrical system or on an electric motor to be protected, with a visible separation point is formed and the cable is safely interrupted.

Zweckmäßig erfolgt die Spannungsversorgung über Stromwandler. Es ist es von wesentlichem Vorteil, wenn die Öffnungen für die Steckkontakte fingersicher ausgeführt und damit gegen unbeabsichtigtes Berühren gesichert sind. Vorzugsweise kann zusätzlich der Auslöser mit einer Funktion Auslösung bei Unterspannung ausgestattet sein.The power supply is expediently carried out via current transformers. It is of considerable advantage if the openings for the plug contacts are finger-proof and thus secured against unintentional contact. Preferably, in addition, the trigger can be equipped with a function in case of undervoltage.

Weiterhin ist eine von der Betätigungsvorrichtung, die als Betätigungsdrehknopf bzw. als Baugruppe manueller Drehantrieb ausgebildet ist, zu betätigende Sperrvorrichtung vorhanden, die an der Betätigungswelle ausgebildet und durch Drehung der Betätigungswelle aktivierbar ist. Die Sperrvorrichtung blockiert bei EIN-Schaltstellung des Schutzschalters das Ziehen der Steuereinheit. Die Sperrvorrichtung besteht aus einem von der Betätigungswelle beaufschlagbaren und betätigbaren mechanischen Sperrmittel, das die Steckbewegung der Steuereinheit blockiert oder freigibt. Ein Vorteil liegt darin, dass eine sichere Verriegelung gegen unzulässiges oder unbefugtes Wechseln der Steuereinheit vorhanden ist. Die Sperrvorrichtung tritt in den Weg der zu steckenden Steuereinheit und blockiert die Bewegung der Steuereinheit. Die Verriegelung erfolgt autonom ohne zusätzliche Betätigung von außen durch die Drehung der Betätigungswelle. Durch die Verriegelung ist eine sichere Fixierung der Steuereinheit bei eingeschaltetem Schutzschalter gewährleistet. Im eingeschalteten Zustand ist das Ziehen der Steuereinheit durch die mit dem Betätigungsdrehknopf aktivierte Sperrvorrichtung blockiert. Die Steuereinheit kann nur bei ausgeschaltetem Schutzschalter abgezogen und gewechselt werden.Furthermore, one of the actuator, which is designed as an operating knob or as an assembly manual rotary drive, operated locking device is provided which is formed on the actuating shaft and can be activated by rotation of the actuating shaft. The locking device blocks in the ON position of the circuit breaker pulling the control unit. The locking device consists of an acted upon by the actuating shaft and operable mechanical locking means which blocks the plug movement of the control unit or releases. One advantage is that there is a secure lock against unauthorized or unauthorized changing of the control unit. The locking device enters the path of the control unit to be inserted and blocks the movement of the control unit. The locking takes place autonomously without additional operation from the outside by the rotation of the actuating shaft. By locking a secure fixation of the control unit is ensured with the circuit breaker. When switched on, the pulling of the control unit is blocked by the locking device activated by the locking device. The control unit can only be removed and replaced when the circuit breaker is switched off.

Vorzugsweise kann bei einer Ausführungsform des Schutzschalters eine Vorrichtung zur Plombierung einer auf der Basisbaugruppe gesteckten Steuereinheit vorhanden sein. Zur weiteren Erhöhung der Sicherheit kann die manuelle Betätigungsvorrichtung abschließbar gestaltet sein. Das bedeutet, dass der Drehknopf in der Stellung EIN des Schalters mit einem Schloss verriegelt werden kann. In einer solchen Anordnung ist es nicht möglich, weder den Drehknopf in der Stellung EIN zu betätigen noch abzuziehen.Preferably, in one embodiment of the circuit breaker, there may be a device for sealing a control unit inserted on the base module. To further increase safety, the manual actuator may be lockable. This means that the knob can be locked in the ON position of the switch with a lock. In such an arrangement, it is not possible to operate or turn off the knob in the ON position.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigen:

  • Figur 1 eine schematische, als Blockbild gezeichnete Darstellung eines Schutzschalters.
Further details and advantages of the invention will become apparent from the following, explained with reference to figures embodiment. Show it:
  • FIG. 1 a schematic, drawn as a block diagram representation of a circuit breaker.

Bester Weg zur Ausführung der ErfindungBest way to carry out the invention

Die Figur bezieht sich auf einen Schutzschalter, der Bestandteil einer zusammensteckbaren Schalterkombination ist, deren Komponenten nach dem Baukastensystem ausgebildet sind. Die Bestandteile des Baukastens sind - soweit dies für die vorliegende Anmeldung relevant ist: die Basisbaugruppe 100, welche im wesentlichen den Kontaktapparat 107 und das Schaltschloss 140 umfasst; das Auslöser-Modul 120; die Aktoreinheit (Spanneinheit) 110; die steckbare Steuereinheit 130 und die manuelle Betätigungseinrichtung. Die Steuereinheit 130 ist an dem Schaltergehäuse neben dem auskragenden Gehäuseteil parallel zur Achse des Betätigungsdrehknopfs einschiebbar. Die mechanische Steck- und Trennbarkeit ist in der Figur durch die gestrichelte Linie 20 angedeutet.The figure relates to a circuit breaker, which is part of a mating switch combination whose components are designed according to the modular system. The components of the kit are - as far as is relevant to the present application: the base assembly 100, which essentially comprises the contact apparatus 107 and the switching mechanism 140; the trigger module 120; the actuator unit (clamping unit) 110; the pluggable control unit 130 and the manual operating device. The control unit 130 can be inserted on the switch housing adjacent to the projecting housing part parallel to the axis of the actuating rotary knob. The mechanical Plug and separability is indicated in the figure by the dashed line 20.

Es sind nicht näher dargestellte Führ- und Verbinderelemente vorhanden, insbesondere Kontaktmittel (Steckkontakte 102,104) zur Basisbaugruppe und Kontaktmittel (134) zur Aktoreinheit 110. Die Führ- und Verbinderelemente wirken mit korrespondierenden Elementen (Aufnahmeelemente oder Kontaktbuchsen) zusammen. Zwischen der Steuereinheit und der Basisbaugruppe des Schutzschalters befindet sich eine Trennstrecke zwischen Steckkontakten und Kontaktbuchsen. Es ist von Vorteil, wenn diese Trennstrecke bei nicht gesteckter Steuereinheit sichtbar ist. In der Basisbaugruppe 100 sind Eingangs- und Ausgangskontakte, Hauptstrombahnen, die insbesondere dreiphasig sein können, und der Kontaktapparat 107 angedeutet. In der Mitte der Baugruppenanordnung befindet sich auskragend ein prismatisches Gehäuseteil mit einer Bedienfront, die der Befestigungsfläche gegenüber liegt. Die Befestigungsfläche liegt auf der Rückseite des Schutzschalters und dient dort vornehmlich zur Befestigung auf einer Tragschiene.There are guide and connector elements not shown in detail present, in particular contact means (plug contacts 102,104) to the base assembly and contact means (134) to the actuator unit 110. The guide and connector elements cooperate with corresponding elements (receiving elements or contact sockets). Between the control unit and the base assembly of the circuit breaker is a separation distance between plug contacts and contact sockets. It is advantageous if this separation distance is visible when the control unit is not plugged in. In the basic module 100, input and output contacts, main current paths, which may be in particular three-phase, and the contact apparatus 107 are indicated. In the middle of the assembly arrangement is projecting a prismatic housing part with an operating front, which lies opposite the mounting surface. The mounting surface is located on the back of the circuit breaker and serves primarily for mounting on a mounting rail.

Das vorgenannte Gehäuseteil umfasst im wesentlichen eine mit einer Betätigungswelle 45 über einen Betätigungsdrehknopf 150 manuell zu betätigende Einrichtung für die Betätigung mindestens eines Schaltmechanismus (107) des Schutzschalters zum Öffnen und Schließen von Leitungsbahnen (102, 104).The aforementioned housing part essentially comprises a device for actuating at least one switching mechanism (107) of the circuit breaker for opening and closing conductor paths (102, 104), which is manually operable with an actuating shaft 45 via an actuating rotary knob 150.

Die Betätigungswelle 45 ist senkrecht zur Bedienfront und zur Befestigungsfläche (auf der Rückseite des Schutzschalters) angeordnet. An dem Gehäuseteil ist senkrecht zur Bedienfront eine Anschlussfläche für die steckbare Steuereinheit ausgebildet. Die Anschfussfläche hat - nicht näher dargestellte - lineare Führelementen und Verbinder- oder Kontaktmittel. Insbesondere ist ein aus mindestens einem Kontaktpaar bestehender Kontakt 134 zur Aktoreinheit 110 vorhanden.The actuating shaft 45 is arranged perpendicular to the front panel and the mounting surface (on the back of the circuit breaker). On the housing part, a connection surface for the plug-in control unit is formed perpendicular to the front panel. The Anschfussfläche has - not shown - linear guide elements and connector or contact means. In particular, a contact 134 consisting of at least one contact pair to the actuator unit 110 is present.

Der Schutzschalter wird am Betätigungsdrehknopf 150 betätigt, mit dem eine AUS- und eine EIN-Stellung mit einer Drehung von 90° schaltbar ist. In der EIN-Stellung sind die Schaltkontakte 107 geschlossen. Aus dieser Stellung können die Schaltkontakte des Schutzschalters manuell durch eine erste Drehung der Antriebswelle über den Betätigungsdrehknopf geöffnet werden. Die Antriebswelle löst im Schalterantriebsmechanismus das Schaltschloss und öffnet die Schaltkontakte. Zur manuellen Ausschaltung reicht eine kurze Drehung in Gegenrichtung, um das Schaltschloss zu betätigen. Eine volle Drehung um 90° ist hierzu nicht erforderlich. Beim automatischen Ausschalten im Fehlerfall und Öffnen der Schaltkontakte wird zwangsweise die Antriebswelle mitbewegt. Im ausgeschalteten Zustand des Schutzschalters, dort sind Schaltschloss und Schaltkontakte offen, ist es nicht möglich, unmittelbar den Schutzschalter in den eingeschalteten Zustand zu versetzen. Der mechanische Kraftspeicher des Auslöser-Moduls muss vorerst gespannt werden. Hierzu wird mit einer Linksdrehung des Betätigungsdrehknopfs (und der Antriebswelle) aus der AUS-Position um etwa 20° bis 30° (also in Gegenrichtung zur EIN-Schaltbewegung) das Auslöser-Modul aktiviert.The circuit breaker is operated on the operation knob 150, with which an OFF and ON position with a rotation of 90 ° is switchable. In the ON position, the switching contacts 107 are closed. From this position, the switch contacts of the circuit breaker can be manually opened by a first rotation of the drive shaft via the operating knob. The drive shaft releases the switch lock in the switch drive mechanism and opens the switch contacts. For manual switch-off, a short turn in the opposite direction is sufficient to operate the switch lock. A full 90 ° turn is not required. When automatically switching off in case of failure and opening the switch contacts forcibly drives the drive shaft. In the switched-off state of the circuit breaker, there are switching mechanism and switching contacts open, it is not possible to immediately put the circuit breaker in the on state. The mechanical energy storage of the release module must first be tightened. For this purpose, with a left turn of the operating knob (and the drive shaft) from the OFF position by about 20 ° to 30 ° (ie in the opposite direction to the ON-switching movement), the trigger module is activated.

Die Einzelkomponenten können in oder auf die Basisbaugruppe gesteckt werden, oder auf andere Weise zusammengebaut sein. Wesentlich ist jedoch im Zusammenhang mit dem beanspruchten Gegenstand, dass die Steuereinheit 130 und die Baugruppe manueller Drehantrieb 150 steckbar sind. Das Auslöser-Modul 120 ist vorzugsweise ebenfalls austauschbar ausgebildet, wobei es neben dem prismatischen Gehäuseteil parallel zur Achse des Betätigungsdrehknopfs einschiebbar ist.The individual components may be plugged into or onto the base assembly, or assembled in other ways. However, it is essential in connection with the claimed subject matter that the control unit 130 and the assembly manual rotary drive 150 are pluggable. The trigger module 120 is preferably also designed to be exchangeable, wherein it can be inserted next to the prismatic housing part parallel to the axis of the actuating rotary knob.

Das Auslöser-Modul hat Steckkontakte, die in entsprechende Kontaktbuchsen an der Basisbaugruppe steckbar sind. Wesentlich ist noch, dass die Steuereinheit im sperrenden Zustand der Sperrvorrichtung nur soweit eingesteckt werden kann, dass noch eine Trennstrecke zwischen Steckkontakten und Kontaktbuchsen vorhanden, bzw. insbesondere sichtbar ist.The release module has plug contacts that can be plugged into corresponding contact sockets on the basic module. It is also essential that the control unit in the blocking state of the locking device can only be plugged in so far that there is still a separation distance between plug contacts and contact sockets, or in particular visible.

Claims (6)

  1. Manually operated circuit breaker for motor protection and/or line protection, comprising:
    - a base module (100) substantially comprising a switching mechanism (107, 140) and main current paths (102, 104),
    - a manual actuating device (150) actuated via a rotary knob and an actuating shaft (45) for the switching mechanism which comprises at least a switching apparatus (107) and a latch (140), the actuating device (150) being accommodated in a housing part which protrudes towards the control panel and the actuating shaft (45) being arranged perpendicular to the control panel,
    - an electronic control unit (130) which can be adjusted by control variables in case of a fault for controlling the switching mechanism,
    - an actuator unit (110) comprising an energy storage device (113) for actuating the latch (140),
    - a tripping device (120) which acts on adjustable fault criteria,
    wherein
    - the control unit (130) is configured as a module which can be plugged into the base module (100), and
    - the control unit (130) is supplied with voltage from the main current path (102, 104) in the base module (100) to the control unit (130) via the contact means (102, 104), and a blocking device being present which is to be actuated by the actuating device (150) and which blocks removal of the control unit (130) when the circuit breaker is in an ON switching position, the blocking device consisting of a mechanical blocking means which can be acted upon and actuated by the actuating shaft (45) and which blocks or releases the plug-in movement of the control unit (130), and the actuating device (150) being able to be plugged into the base module (100), the control unit (130) and the tripping device (120) being configured as components which can be mechanically separated from one another.
  2. Circuit breaker according to claim 1, characterised in that the voltage is supplied to the electronic control unit via a current transformer (131).
  3. Circuit breaker according to either claim 1 or claim 2, characterised in that the contact means (102, 104) between the control unit (130) and the base module (100) are configured to be safe to touch when the control unit (130) is not plugged in.
  4. Circuit breaker according to any of the preceding claims, characterised in that a device for sealing a control unit (130) plugged into the base module (100) is present.
  5. Circuit breaker according to any of the preceding claims, characterised in that the tripping device (120) is provided with an undervoltage tripping function.
  6. Circuit breaker according to any of the preceding claims, characterised in that the manual actuating device (150) is configured to be lockable.
EP07724598A 2006-05-04 2007-04-26 Circuit breaker for motor protection and/or line protection Active EP2016605B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07724598T PL2016605T3 (en) 2006-05-04 2007-04-26 Circuit breaker for motor protection and/or line protection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006020702.5A DE102006020702B4 (en) 2006-05-04 2006-05-04 Circuit breaker for motor protection and / or line protection
PCT/EP2007/003668 WO2007128421A1 (en) 2006-05-04 2007-04-26 Circuit breaker for motor protection and/or line protection

Publications (2)

Publication Number Publication Date
EP2016605A1 EP2016605A1 (en) 2009-01-21
EP2016605B1 true EP2016605B1 (en) 2013-01-16

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Application Number Title Priority Date Filing Date
EP07724598A Active EP2016605B1 (en) 2006-05-04 2007-04-26 Circuit breaker for motor protection and/or line protection

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US (1) US20090065338A1 (en)
EP (1) EP2016605B1 (en)
DE (1) DE102006020702B4 (en)
PL (1) PL2016605T3 (en)
WO (1) WO2007128421A1 (en)

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DE102009023347A1 (en) 2009-05-29 2010-12-30 Eaton Industries Gmbh Manually operated circuit breaker with replaceable trip module
CN102955432B (en) * 2011-08-31 2014-12-03 上海电科博耳电器开关有限公司 Multifunctional intelligent circuit breaker
EP2802070A1 (en) * 2013-05-07 2014-11-12 Siemens Aktiengesellschaft Motor starter with status recognition for the mechanical unlocking of a terminal module
CN105703320B (en) * 2014-11-24 2019-06-04 施耐德电气工业公司 Miniature circuit breaker
GB2543812B (en) * 2015-10-30 2020-01-01 Long Men Tech Co Ltd High and ultra-high voltage circuit breaking system
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Also Published As

Publication number Publication date
EP2016605A1 (en) 2009-01-21
US20090065338A1 (en) 2009-03-12
DE102006020702A1 (en) 2007-11-15
PL2016605T3 (en) 2013-08-30
DE102006020702B4 (en) 2014-03-13
WO2007128421A1 (en) 2007-11-15

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