EP2467862B1 - Locking mechanism for a electrical switching unit - Google Patents

Locking mechanism for a electrical switching unit Download PDF

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Publication number
EP2467862B1
EP2467862B1 EP09782024.5A EP09782024A EP2467862B1 EP 2467862 B1 EP2467862 B1 EP 2467862B1 EP 09782024 A EP09782024 A EP 09782024A EP 2467862 B1 EP2467862 B1 EP 2467862B1
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EP
European Patent Office
Prior art keywords
locking
switch
drive shaft
slide
circuit breaker
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.)
Active
Application number
EP09782024.5A
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German (de)
French (fr)
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EP2467862A1 (en
Inventor
Gerhard Drechsler
Tushar Maruti Rane
Matthias Gerstner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Publication date
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Publication of EP2467862A1 publication Critical patent/EP2467862A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/18—Closures or guards for keyholes shaped as lids or slides
    • E05B17/186—Closures or guards for keyholes shaped as lids or slides sliding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches

Definitions

  • the invention relates to a locking device for a switchgear.
  • a switchgear for example, a multi-phase medium voltage switchgear with a disconnector and a grounding switch to lock the operation of these switches such that when actuated earthing switch, the circuit breaker is locked and thus protected against actuation and vice versa.
  • a locking device of a switchgear which switchgear comprises a first and a second switch and a respective switch associated first and second drive shaft, which locking device comprises locking slide, which are displaceable between a first and a second locking position, wherein in a first locking position an actuating opening is blocked for the first drive shaft and the actuating opening for the second drive shaft is released, and in a second locking position, the actuating opening for the first drive shaft is released and the actuating opening for the second drive shaft is blocked.
  • Object of the present invention is to provide a locking device for a switchgear, which allows a simple way locking of several switching devices.
  • a locking device for a switchgear which switchgear comprises a first, a second and a third switch and each associated with a switch first, second and third drive shaft
  • which locking device comprises a main locking slide between a first, a second and a third locking position is movable, wherein in the first locking position actuating openings for the second and the third drive shaft are blocked and a circuit breaker locking slide is released, in a second locking position, the actuating opening for the second drive shaft is released and the circuit breaker locking slide and the actuating opening for the third drive shaft locked are, and in a third locking position, the actuating opening for the third drive shaft is released and the circuit breaker locking slide and the actuating opening for the second drive shaft are locked.
  • the main locking slide is held by means of spring elements in the first locking position, wherein an actuating lever for manual displacement of the main locking slide from the first to the second or in the third locking position is provided.
  • FIG. 1 shows a perspective view of a locking device 1 for a switchgear, which figuratively not shown switchgear having a first switch in the form of a circuit breaker, a second switch in the form of a circuit breaker and a third switch in the form of a grounding switch.
  • the first switch is coupled to a power switch drive shaft 2 for initiating a drive movement in the first switch
  • the second switch is mechanically coupled to a disconnect switch drive shaft 3
  • the third switch is mechanically coupled to a grounding switch drive shaft 4 which is also for initiating drive motions into the disconnect switch
  • the earthing switch are formed.
  • the switch shafts 2, 3 and 4 are each mechanically connected to the locking device 1, wherein the locking device 1 has a lock carrier 5, which has an actuating lever 6 for a in the FIG. 1 not illustrated in the main locking slide and a Erdungsschalterbetutzutz 7 and a breaker switch operating opening 8 and a circuit breaker-lock slide 9 has.
  • the earthing switch operating opening 7 and the disconnector operation opening 8 are provided in the locking device 1 so as to be operable to operate the third switch or the second switch by operating the main switch slide via the ground switch operating opening 7 and the disconnector operation opening 8, respectively, by means of an operating tool.
  • FIG. 2 shows a sectional view through the locking device 1 according to the invention, wherein the lock carrier 5 from FIG. 1 in the FIG. 2 is shown in dashed lines, as well as the Erdungsschalterbetutzsö réelle 7 and the Trennschalterbetrucistsö réelle 8. Die
  • FIG. 2 shows the main locking slide 10 in a resting on spring elements 11 and 12 rest position as the first locking position in which the Erdungsschalterbetquestioned affectsö réelle 7 and the breaker switch operating opening 8 are locked by the main locking slide 10 and thus not released or accessible, so that an operation of earthing switch and disconnector not possible is.
  • the FIG. 2 shows the main locking slide 10 in a resting on spring elements 11 and 12 rest position as the first locking position in which the Erdungsschalterbettechnikriensö réelle 7 and the breaker switch operating opening 8 are locked by the main locking slide 10 and thus not released or accessible, so that an operation of earthing switch and disconnector not possible is.
  • the FIG. 1 shows the lock carrier 5 from FIG
  • circuit breaker interlocking slide 9 is released, so that the circuit breaker between a switch-on and off position by means of the drive shaft is movable and in particular not locked. If the circuit breaker is transferred to its on position, the circuit breaker-locking slide 9 in the FIG. 2 moves downwards and locks the operating lever 6 against movement, so that when the circuit breaker is activated, actuation of the operating lever 6 and thus displacement of the main locking slide 10 in a second or third locking position in which the Erdungsschalterbetuschauersö réelle 7 or the breaker switch operating opening 8 are released locked and is prevented.
  • the circuit breaker is in its off position, the operating lever 6 through the Circuit breaker lock slide 9 is no longer locked or blocked, so that via the operating lever 6 of the main locking slide 10 is manually convertible to a second or a third locking position, so that in the second locking position the disconnector switch opening 8 is released or in the third locking position the earthing switch operating opening 7 is released to operate the respective switch by means of a tool can.
  • the main lock slider 10 has first and second manipulation openings 13 and 14 thereto, the first operation opening 13 being congruent with the disconnector operation opening 8 in the second locking position, so that an operation tool can be inserted through the disconnector operation opening and the first operation opening 13 for operating the disconnector, and the second operation opening 14 is congruent with the grounding switch operation opening 7 in the third locking position, so that a tool can be inserted through the grounding switch operation opening 7 and the second operation opening 14 to operate the grounding switch.
  • a circuit breaker stopper 15 and a grounding switch stopper 16 are provided for the earthing switch and the disconnector on the main lock slider 10, which are arranged in a corresponding disconnector switch slot 17 or grounding switch long hole 18 of the disconnector drive shaft 3 and the Erdungsschalterantriebswelle 4 in the FIG.

Description

Die Erfindung betrifft eine Verriegelungseinrichtung für eine Schaltanlage.The invention relates to a locking device for a switchgear.

Aus dem landläufigen Stand der Technik ist es bekannt, bei einer Schaltanlage, beispielsweise einer mehrphasigen Mittelspannungsschaltanlage mit einem Trenn- und einem Erdungsschalter die Betätigung dieser Schalter derart zu verriegeln, dass bei betätigbarem Erdungsschalter der Trennschalter verriegelt ist und somit gegen Betätigung geschützt und umgekehrt.From the common prior art, it is known in a switchgear, for example, a multi-phase medium voltage switchgear with a disconnector and a grounding switch to lock the operation of these switches such that when actuated earthing switch, the circuit breaker is locked and thus protected against actuation and vice versa.

Aus der DE 20 2006 012 056 B3 ist ferner eine Verriegelungsvorrichtung einer Schaltanlage bekannt, welche Schaltanlage einen ersten und einen zweiten Schalter sowie jeweils einem Schalter zugeordnete erste und zweite Antriebswelle aufweist, welche Verriegelungseinrichtung Verriegelungsschieber umfasst, welche zwischen einer ersten und einer zweiten Verriegelungsstellung verschiebbar sind, wobei in einer ersten Verriegelungsstellung eine Betätigungsöffnung für die erste Antriebswelle blockiert ist und die Betätigungsöffnung für die zweite Antriebswelle freigegeben ist, und in einer zweiten Verriegelungsstellung die Betätigungsöffnung für die erste Antriebswelle freigegeben ist und die Betätigungsöffnung für die zweite Antriebswelle blockiert ist.From the DE 20 2006 012 056 B3 Furthermore, a locking device of a switchgear is known, which switchgear comprises a first and a second switch and a respective switch associated first and second drive shaft, which locking device comprises locking slide, which are displaceable between a first and a second locking position, wherein in a first locking position an actuating opening is blocked for the first drive shaft and the actuating opening for the second drive shaft is released, and in a second locking position, the actuating opening for the first drive shaft is released and the actuating opening for the second drive shaft is blocked.

Aufgabe der vorliegenden Erfindung ist es, eine Verriegelungseinrichtung für eine Schaltanlage auszubilden, welche in einfacher Weise eine Verriegelung von mehreren Schaltgeräten ermöglicht.Object of the present invention is to provide a locking device for a switchgear, which allows a simple way locking of several switching devices.

Erfindungsgemäß gelöst wird diese Aufgabe durch eine Verriegelungseinrichtung für eine Schaltanlage, welche Schaltanlage einen ersten, einen zweiten und einen dritten Schalter sowie jeweils einem Schalter zugeordnete erste, zweite und dritte Antriebswelle aufweist, welche Verriegelungseinrichtung einen Hauptverriegelungsschieber umfasst, der zwischen einer ersten, einer zweiten und einer dritten Verriegelungsstellung bewegbar ist wobei in der ersten Verriegelungsstellung Betätigungsöffnungen für die zweite und die dritte Antriebswelle blockiert sind und ein Leistungsschalter-Verriegelungsschieber freigegeben ist, in einer zweiten Verriegelungsstellung die Betätigungsöffnung für die zweite Antriebswelle freigegeben ist und der Leistungsschalter-Verriegelungsschieber sowie die Betätigungsöffnung für die dritte Antriebswelle verriegelt sind, und in einer dritten Verriegelungsstellung die Betätigungsöffnung für die dritte Antriebswelle freigegeben ist und der Leistungsschalter-Verriegelungsschieber sowie die Betätigungsöffnung für die zweite Antriebswelle verriegelt sind.According to the invention, this object is achieved by a locking device for a switchgear, which switchgear comprises a first, a second and a third switch and each associated with a switch first, second and third drive shaft, which locking device comprises a main locking slide between a first, a second and a third locking position is movable, wherein in the first locking position actuating openings for the second and the third drive shaft are blocked and a circuit breaker locking slide is released, in a second locking position, the actuating opening for the second drive shaft is released and the circuit breaker locking slide and the actuating opening for the third drive shaft locked are, and in a third locking position, the actuating opening for the third drive shaft is released and the circuit breaker locking slide and the actuating opening for the second drive shaft are locked.

Mit einer derartigen Verriegelungseinrichtung ist in einfacher Weise das Verriegeln mehrerer Schaltgeräte relativ zueinander ermöglicht, weil bei einem freigegebenem Schaltgerät die jeweiligen anderen verriegelt sind, wobei insbesondere durch das Verriegeln der Betätigungsöffnungen für die zweite und die dritte Antriebswelle eine direkte und unmittelbare Verriegelung der zweiten bzw. dritten Antriebswelle ausgebildet ist, ohne dass aufwändige zusätzliche mechanische Elemente vorgesehen sind.With such a locking device, the locking of several switching devices relative to each other is possible in a simple manner, because in a shared switching device, the respective others are locked, in particular by the locking of the actuating openings for the second and the third drive shaft direct and immediate locking of the second or third drive shaft is formed without complex additional mechanical elements are provided.

In weiterer Ausgestaltung der Erfindung ist der Hauptverriegelungsschieber mittels Federelementen in der ersten Verriegelungsstellung gehalten, wobei ein Betätigungshebel zum manuellen Verschieben des Hauptverriegelungsschiebers aus der ersten in die zweite oder in die dritte Verriegelungsstellung vorgesehen ist. Mit einem derartig gehaltenen Hauptverriegelungsschieber ist in einfacher Weise eine Verschiebung bzw. Betätigung des Hauptverriegelungsschiebers ermöglicht, wobei insbesondere durch die Federelemente eine Ruheposition als erste Verriegelungsstellung des Hauptverriegelungsschiebers definiert und ausgebildet ist, aus welcher mittels des Betätigungshebels der Hauptverriegelungsschieber in einfacher Weise ausgelenkt werden kann, so dass in der zweiten oder in der dritten Verriegelungsstellung des Hauptverriegelungsschiebers jeweils die zweite oder die dritte Antriebswelle betätigbar ist, wobei gleichzeitig die anderen Schaltgeräte oder Antriebswellen über den Hauptverriegelungsschieber verriegelt sind und somit vor ungewollter/unvorhergesehener Benutzung bzw. ungewollten Schaltvorgängen geschützt sind.In a further embodiment of the invention, the main locking slide is held by means of spring elements in the first locking position, wherein an actuating lever for manual displacement of the main locking slide from the first to the second or in the third locking position is provided. With a main locking slide held in such a way, a displacement or actuation of the main locking slide is possible in a simple manner, wherein in particular by the spring elements a rest position as the first locking position of the main locking slide is defined and formed, from which by means of the actuating lever of the main locking slide can be deflected in a simple manner, so that in the second or in the third locking position of the main locking slide in each case the second or the third drive shaft is actuated, at the same time locking the other switching devices or drive shafts via the main locking slide are thus protected against accidental / unforeseen use or unwanted switching operations.

Die Erfindung wird im Folgenden anhand der Zeichnung und eines Ausführungsbeispiels mit Bezug auf die beiliegenden Figuren näher erläutert. Es zeigen:

Figur 1
eine perspektivische Ansicht einer erfindungsgemäßen Verriegelungseinrichtung; und
Figur 2
eine Schnittansicht durch eine erfindungsgemäße Verriegelungseinrichtung.
The invention will be explained in more detail below with reference to the drawing and an embodiment with reference to the accompanying figures. Show it:
FIG. 1
a perspective view of a locking device according to the invention; and
FIG. 2
a sectional view through a locking device according to the invention.

Figur 1 zeigt eine perspektivische Ansicht einer Verriegelungseinrichtung 1 für eine Schaltanlage, welche figürlich nicht dargestellte Schaltanlage einen ersten Schalter in Form eines Leistungsschalters, einen zweiten Schalter in Form eines Trennschalters und einen dritten Schalter in Form eines Erdungsschalters aufweist. Der erste Schalter ist mit einer Leistungsschalterantriebswelle 2 zum Einleiten einer Antriebsbewegung in den ersten Schalter gekoppelt, der zweite Schalter ist mit einer Trennschalterantriebswelle 3 mechanisch gekoppelt und der dritte Schalter ist mit einer Erdungsschalterantriebswelle 4 mechanisch gekoppelt, die ebenfalls zum Einleiten von Antriebsbewegungen in den Trennschalter bzw. den Erdungsschalter ausgebildet sind. Die Schalterwellen 2, 3 und 4 sind mit der Verriegelungseinrichtung 1 jeweils mechanisch verbunden, wobei die Verriegelungseinrichtung 1 über einen Verriegelungsträger 5 verfügt, welcher einen Betätigungshebel 6 für einen in der Figur 1 figürlich nicht dargestellten Hauptverriegelungsschieber sowie eine Erdungsschalterbetätigungsöffnung 7 und eine Trennschalterbetätigungsöffnung 8 und einen Leistungsschalter-Verriegelungsschieber 9 aufweist. Die Erdungsschalterbetätigungsöffnung 7 und die Trennschalterbetätigungsöffnung 8 sind in der Verriegelungseinrichtung 1 vorgesehen, um bei entsprechender Betätigung des Hauptverriegelungsschiebers über die Erdungsschalterbetätigungsöffnung 7 bzw. die Trennschalterbetätigungsöffnung 8 mittels eines Bedienungswerkzeuges den dritten Schalter oder den zweiten Schalter betätigen zu können. FIG. 1 shows a perspective view of a locking device 1 for a switchgear, which figuratively not shown switchgear having a first switch in the form of a circuit breaker, a second switch in the form of a circuit breaker and a third switch in the form of a grounding switch. The first switch is coupled to a power switch drive shaft 2 for initiating a drive movement in the first switch, the second switch is mechanically coupled to a disconnect switch drive shaft 3, and the third switch is mechanically coupled to a grounding switch drive shaft 4 which is also for initiating drive motions into the disconnect switch The earthing switch are formed. The switch shafts 2, 3 and 4 are each mechanically connected to the locking device 1, wherein the locking device 1 has a lock carrier 5, which has an actuating lever 6 for a in the FIG. 1 not illustrated in the main locking slide and a Erdungsschalterbetätigungsöffnung 7 and a breaker switch operating opening 8 and a circuit breaker-lock slide 9 has. The earthing switch operating opening 7 and the disconnector operation opening 8 are provided in the locking device 1 so as to be operable to operate the third switch or the second switch by operating the main switch slide via the ground switch operating opening 7 and the disconnector operation opening 8, respectively, by means of an operating tool.

Figur 2 zeigt eine Schnittansicht durch die erfindungsgemäße Verriegelungseinrichtung 1, wobei der Verriegelungsträger 5 aus Figur 1 in der Figur 2 gestrichelt dargestellt ist, ebenso die Erdungsschalterbetätigungsöffnung 7 und die Trennschalterbetätigungsöffnung 8. Die Figur 2 zeigt den Hauptverriegelungsschieber 10 in einer über Federelemente 11 und 12 gehaltenen Ruheposition als erster Verriegelungsstellung, in welcher die Erdungsschalterbetätigungsöffnung 7 und die Trennschalterbetätigungsöffnung 8 durch den Hauptverriegelungsschieber 10 verriegelt und damit nicht freigegeben bzw. zugänglich sind, so dass eine Betätigung von Erdungsschalter und Trennschalter nicht möglich ist. In der Ruhestellung der Figur 2 ist der Leistungsschalterverriegelungsschieber 9 freigegeben, so dass der Leistungsschalter zwischen einer Einschalt- und einer Ausschaltposition mittels der Antriebswelle beweglich und insbesondere nicht verriegelt ist. Wird der Leistungsschalter in seine Einschaltposition überführt, so wird der Leistungsschalter-Verriegelungsschieber 9 in der Figur 2 nach unten bewegt und verriegelt den Betätigungshebel 6 gegen eine Bewegung, so dass bei eingeschaltetem Leistungsschalter eine Betätigung des Betätigungshebels 6 und damit ein Verschieben des Hauptverriegelungsschiebers 10 in eine zweite oder dritte Verriegelungsstellung, in welcher die Erdungsschalterbetätigungsöffnung 7 oder die Trennschalterbetätigungsöffnung 8 freigegeben sind, verriegelt und damit verhindert ist. Befindet sich der Leistungsschalter in seiner Ausschaltposition, so ist der Betätigungshebel 6 durch den Leistungsschalterverriegelungsschieber 9 nicht mehr verriegelt bzw. blockiert, so dass über den Betätigungshebel 6 der Hauptverriegelungsschieber 10 in eine zweite oder eine dritte Verriegelungsstellung manuell überführbar ist, so dass in der zweiten Verriegelungsstellung die Trennschalterbetätigungsöffnung 8 freigegeben ist oder in der dritten Verriegelungsstellung die Erdungsschalterbetätigungsöffnung 7 freigegeben ist, um den jeweiligen Schalter mittels eines Werkzeuges betätigen zu können. Der Hauptverriegelungsschieber 10 verfügt dazu über erste und zweite Bedienöffnungen 13 und 14, wobei die erste Bedienöffnung 13 in der zweiten Verriegelungsstellung deckungsgleich mit der Trennschalterbetätigungsöffnung 8 ist, so dass ein Betätigungswerkzeug durch die Trennschalterbetätigungsöffnung und die erste Bedienöffnung 13 zur Betätigung des Trennschalters eingeführt werden kann, und die zweite Bedienöffnung 14 in der dritten Verriegelungsstellung mit der Erdungsschalterbetätigungsöffnung 7 deckungsgleich ist, so dass ein Werkzeug durch die Erdungsschalterbetätigungsöffnung 7 und die zweite Bedienöffnung 14 eingeführt werden kann zum Betätigen des Erdungsschalters. FIG. 2 shows a sectional view through the locking device 1 according to the invention, wherein the lock carrier 5 from FIG. 1 in the FIG. 2 is shown in dashed lines, as well as the Erdungsschalterbetätigungsöffnung 7 and the Trennschalterbetätigungsöffnung 8. Die FIG. 2 shows the main locking slide 10 in a resting on spring elements 11 and 12 rest position as the first locking position in which the Erdungsschalterbetätigungsöffnung 7 and the breaker switch operating opening 8 are locked by the main locking slide 10 and thus not released or accessible, so that an operation of earthing switch and disconnector not possible is. At rest the FIG. 2 is the circuit breaker interlocking slide 9 is released, so that the circuit breaker between a switch-on and off position by means of the drive shaft is movable and in particular not locked. If the circuit breaker is transferred to its on position, the circuit breaker-locking slide 9 in the FIG. 2 moves downwards and locks the operating lever 6 against movement, so that when the circuit breaker is activated, actuation of the operating lever 6 and thus displacement of the main locking slide 10 in a second or third locking position in which the Erdungsschalterbetätigungsöffnung 7 or the breaker switch operating opening 8 are released locked and is prevented. The circuit breaker is in its off position, the operating lever 6 through the Circuit breaker lock slide 9 is no longer locked or blocked, so that via the operating lever 6 of the main locking slide 10 is manually convertible to a second or a third locking position, so that in the second locking position the disconnector switch opening 8 is released or in the third locking position the earthing switch operating opening 7 is released to operate the respective switch by means of a tool can. The main lock slider 10 has first and second manipulation openings 13 and 14 thereto, the first operation opening 13 being congruent with the disconnector operation opening 8 in the second locking position, so that an operation tool can be inserted through the disconnector operation opening and the first operation opening 13 for operating the disconnector, and the second operation opening 14 is congruent with the grounding switch operation opening 7 in the third locking position, so that a tool can be inserted through the grounding switch operation opening 7 and the second operation opening 14 to operate the grounding switch.

Bei der Verriegelungseinrichtung 1 ist dabei gewährleistet, dass eine Betätigung von Trennschalter oder Erdungsschalter durch Verschieben des Hauptverriegelungsschiebers 10 nur dann ermöglicht ist, wenn sich Leistungsschalter, Erdungsschalter und Trennschalter in der Ausschaltstellung befinden. Dazu sind für den Erdungsschalter und den Trennschalter auf dem Hauptverriegelungsschieber 10 ein Trennschalteranschlag 15 und ein Erdungsschalteranschlag 16 vorgesehen, welche in ein entsprechendes Trennschalterlangloch 17 bzw. Erdungsschalterlangloch 18 von auf der Trennschalterantriebswelle 3 bzw. der Erdungsschalterantriebswelle 4 angeordneten in der Figur 2 gestrichelt dargestellten Steuerscheiben eingreifen, wenn sich der jeweilige Schalter in seiner Ausschaltstellung Befindet, so dass ein Schaltvorgang ermöglicht ist, bzw. an diese jeweilige Steuerscheibe anstößt, wenn sich der Schalter in seiner Einschaltstellung befindet, in der das jeweilige Langloch um 180° verdreht ist und ein Eingreifen des Trennschalteranschlags 15 in das Trennschalterlangloch 17 bzw. des Erdungsschalteranschlags 16 in das Erdungsschalterlangloch 18 nicht möglich ist.In the case of the locking device 1, it is ensured that an actuation of a disconnector or earthing switch by displacement of the main locking slide 10 is only possible when the circuit breaker, earthing switch and disconnector are in the off position. For this purpose, a circuit breaker stopper 15 and a grounding switch stopper 16 are provided for the earthing switch and the disconnector on the main lock slider 10, which are arranged in a corresponding disconnector switch slot 17 or grounding switch long hole 18 of the disconnector drive shaft 3 and the Erdungsschalterantriebswelle 4 in the FIG. 2 dashed control discs intervene when the respective switch in its off position Located, so that a switching operation is possible, or abuts this respective control disc when the switch is in its closed position in which the respective slot is rotated by 180 ° and an engagement of the circuit breaker stopper 15 in the disconnect switch slot 17 and the grounding switch stop 16 in the earthing switch slot 18 is not possible.

Mit einer derartigen Verriegelungseinrichtung sind einerseits die Trennschalterantriebswelle 3 und die Erdungsschalterantriebswelle 4 durch die Verriegelungseinrichtung bzw. den Hauptverriegelungsschieber 10 direkt verriegelbar, und andererseits sind die einzelnen Schaltgeräte gegeneinander derart verriegelbar, dass immer nur ein Schaltgerät zur Betätigung freigegeben ist und die anderen beiden jeweils durch die Verriegelungseinrichtung wirksam vor einer ungewollten oder unvorhergesehenen Betätigung geschützt sind.With such a locking device on the one hand the disconnector drive shaft 3 and the grounding switch drive shaft 4 by the locking device or the main locking slide 10 are directly locked, and on the other hand, the individual switching devices are locked against each other so that only one switching device is released for actuation and the other two each by the Locking device are effectively protected against accidental or unforeseen operation.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verriegelungseinrichtunglocking device
22
LeistungsschalterantriebswelleBreaker drive shaft
33
TrennschalterantriebswelleDisconnector drive shaft
44
ErdungsschalterantriebswelleEarthing switch drive shaft
55
Verriegelungsträgerlock carrier
66
Betätigungshebelactuating lever
77
ErdungsschalterbetätigungsöffnungEarthing switch actuating opening
88th
TrennschalterbetätigungsöffnungBreak switch actuating opening
99
Leistungsschalter-VerriegelungsschieberCircuit breaker locking slide
1010
HauptverriegelungsschieberMain locking slide
11, 1211, 12
Federelementespring elements
1313
erste Bedienöffnungfirst operating opening
1414
zweite Bedienöffnungsecond operating opening
1515
TrennschalteranschlagDisconnectors stop
1616
ErdungsschalteranschlagEarthing switch stop
1717
TrennschalterlanglochDisconnectors slot
1818
ErdungsschalterlanglochEarthing switch slot
1919
TrennschaltersteuerscheibeDisconnectors control disc
2020
ErdungsschaltersteuerscheibeEarthing switch control disc

Claims (2)

  1. Locking device (1) for a switchgear assembly, said switchgear assembly having a first, a second and a third switch and, respectively associated with a switch, a first, a second and a third drive shaft (2, 3, 4), said locking device (1) comprising a main locking slide (10), which is movable between a first, a second and a third locking position, wherein, in the first locking position, actuating openings (7, 8) for the second and third drive shafts are blocked and a circuit breaker locking slide (9) is released, in a second locking position the actuating opening (8) for the second drive shaft (3) is released and the circuit breaker locking slide (9) and the actuating opening (7) for the third drive shaft (4) are locked, and in a third locking position the actuating opening (7) for the third drive shaft (4) is released and the circuit breaker locking slide (9) and the actuating opening (8) for the second drive shaft (3) are locked.
  2. Locking device according to Claim 1,
    characterized in that
    the main locking slide (10) is held in the first locking position by means of spring elements (11, 12), wherein an actuating lever (6) for manually shifting the main locking slide (10) out of the first locking position into the second or third locking position is provided.
EP09782024.5A 2009-08-20 2009-08-20 Locking mechanism for a electrical switching unit Active EP2467862B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/060765 WO2011020506A1 (en) 2009-08-20 2009-08-20 Interlocking device for switchgear

Publications (2)

Publication Number Publication Date
EP2467862A1 EP2467862A1 (en) 2012-06-27
EP2467862B1 true EP2467862B1 (en) 2015-07-29

Family

ID=42194672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782024.5A Active EP2467862B1 (en) 2009-08-20 2009-08-20 Locking mechanism for a electrical switching unit

Country Status (4)

Country Link
EP (1) EP2467862B1 (en)
CN (1) CN102484002B (en)
HK (1) HK1168467A1 (en)
WO (1) WO2011020506A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101768592B1 (en) * 2016-01-21 2017-08-17 엘에스산전 주식회사 Interlock apparatus of ring main unit
CN108630474A (en) * 2018-07-02 2018-10-09 河南华盛隆源电气有限公司 The interlocking mechanism of breaker and disconnecting switch
CN112582201A (en) 2020-11-30 2021-03-30 Abb瑞士股份有限公司 Switching device
CN113257609B (en) * 2021-04-19 2023-02-07 平高集团有限公司 Disconnecting switch and grounding switch interlocking structure and switch equipment using same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924041A (en) * 1989-04-26 1990-05-08 General Electric Company Universal circuit breaker interlock arrangement
US5648646A (en) * 1995-06-19 1997-07-15 Reliance Time Controls, Inc. Circuit breaker linkage assembly
US6320143B1 (en) * 1999-12-30 2001-11-20 Square D Company Slider linkage for double throw safety switches
US6872900B1 (en) * 2004-03-11 2005-03-29 Siemens Energy & Automation, Inc. Double throw switch linkage
DE102006012056B3 (en) * 2006-03-08 2007-08-09 Siemens Ag Actuation openings locking device for e.g. medium-voltage switch gear, has slides coupled with each other by locking latches and locking lever, such that one slide is locked in locking position when other slide is in release position

Also Published As

Publication number Publication date
EP2467862A1 (en) 2012-06-27
CN102484002A (en) 2012-05-30
HK1168467A1 (en) 2012-12-28
CN102484002B (en) 2014-06-18
WO2011020506A1 (en) 2011-02-24

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