EP1994538B1 - Power disconnecting device - Google Patents

Power disconnecting device Download PDF

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Publication number
EP1994538B1
EP1994538B1 EP07711631A EP07711631A EP1994538B1 EP 1994538 B1 EP1994538 B1 EP 1994538B1 EP 07711631 A EP07711631 A EP 07711631A EP 07711631 A EP07711631 A EP 07711631A EP 1994538 B1 EP1994538 B1 EP 1994538B1
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EP
European Patent Office
Prior art keywords
power disconnecting
disconnecting device
grounding
power
switch
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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.)
Not-in-force
Application number
EP07711631A
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German (de)
French (fr)
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EP1994538A1 (en
Inventor
Rudolf Von Prondzinski
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.)
Schaltbau GmbH
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Schaltbau GmbH
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Publication date
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Publication of EP1994538A1 publication Critical patent/EP1994538A1/en
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Publication of EP1994538B1 publication Critical patent/EP1994538B1/en
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    • 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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/227—Interlocked hand- and power-operating mechanisms
    • 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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H01H9/226—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts the casing containing electrical equipment other than and operated by the switch

Definitions

  • the invention relates to a power disconnecting device comprising a switch which can be actuated by means of at least one auxiliary drive and has switch contacts.
  • Such power disconnecting devices are usually used to separate consumers for maintenance of a power system.
  • passenger cars have a power disconnecting and earthing device for disconnecting and grounding a single passenger car from an upgraded train set consisting of multiple passenger carriages for maintenance purposes from the train bus bar. The maintenance work can then be carried out safely on this passenger car, which is separate from the power supply system and grounded.
  • a switch or contactor which switches on or off the power supply systems of the passenger coach.
  • a separate disconnecting and earthing device is provided, which comprises a mechanically actuated switch with separate switching contacts, which causes an additional separation of the power supply systems of the train busbar. This creates a visible separation point.
  • the mechanically actuated switch is equipped with a mechanical positive separation, which leads to a violent separation of the switching contacts, if they are welded together, for example. Upon actuation of this mechanical switch grounding of the consumer or the car system, for example, by lowering a grounding blade, brought about and released the car for maintenance.
  • the invention provides that the power disconnecting device has an additional manually operated acting on the switch contacts of the switch positive opening device.
  • the manually operated forced opening device is integrated in the power disconnecting device, only one device is required. Thus, a more compact construction and a weight reduction of the power disconnecting device are possible.
  • the positive opening device is connected to a housing of the power disconnecting device such that opening of the housing of the power disconnecting device actuates the forced opening device.
  • a positive opening of the switch contacts of the switch is thus automatically effected.
  • the power disconnecting device has a grounding device connected to the positive opening device. Upon actuation of the positive opening device, a grounding of the consumer is thus brought about and a safe switching state for maintenance is established.
  • the grounding device is arranged visible in the power disconnecting device. It is thus also possible to check whether the consumers are actually grounded without opening the housing of the power disconnecting device.
  • the power disconnecting device has a visible disconnection point connected to the positive opening device. It can therefore be easily checked whether the operation of the positive opening device has actually led to a separation of the switching contacts.
  • the power disconnecting device comprises a blocking mechanism which permits opening of the housing of the Power disconnect device blocked if forced opening of the switch contacts is not possible. If the contacts are welded together so that a forced opening is not possible, it is therefore not possible to open the housing of the power disconnecting device. In this way, a threat to the operator is avoided.
  • the current-separating device can be closed in the switch state with opened switch contacts, opened disconnection point and activated earthing device.
  • This switching position is the maintenance position of the power disconnecting device.
  • Fig. 1 a circuit diagram of the power disconnecting device 1 is shown in normal operation. Both the switch 2 and the grounding device 3 are closed and the consumers are thus connected to the power supply.
  • the switch 2 comprises two switching contacts 4, 5.
  • the switching contacts 4, 5 are opened and closed by means of an auxiliary drive 6.
  • the manually operable positive opening device 7 also acts on the switching contacts 4, 5 a.
  • the forced opening device 7 is furthermore connected to the grounding device 3.
  • Fig. 2 a circuit diagram of the power disconnecting device 1 is shown with open switch 2. The consumers are thus disconnected from the power supply. If maintenance work is to be carried out, then only the switch 2 via the auxiliary drive. 6 open. Subsequently, the forced opening device 7 is actuated. The forced opening device 7 is connected to the housing, preferably to the housing cover, of the power disconnecting device 1. If the housing, or the housing cover, the power disconnecting device 1 is opened to perform maintenance, the positive opening device 7 is automatically actuated. The positive opening device 7 acts on the switching contacts 4, 5 a. If the switching contacts 4, 5 can not be opened by the auxiliary drive 6, for example, far they are welded together, then the forced opening device 7 causes a violent separation of the switching contacts 4, 5.
  • the positive opening device protrudes after their operation in the switching contact point. This is intended to ensure positive opening of the switching contacts.
  • the forced opening device 7 blocks and prevents further opening of the housing of the current-separating device 1.
  • grounding blade 8 moves a grounding blade 8 and grounds the consumers.
  • a visible separation point 9 is further generated in the power disconnecting device 1.
  • grounding point 10 is visible. It can thus be easily recognized that the consumers were disconnected from the power supply and grounded and a safe maintenance condition was established.
  • the positive opening device 7 so connected to the housing of the power disconnecting device 1, that the housing of the power disconnecting device 1 can only be closed again when the grounding of the consumer was released.
  • a threat to the operator can be excluded.
  • Fig. 4 a further embodiment of the invention is shown. Same components as in the FIGS. 1 to 3 be in Fig. 4 denoted by the same reference numerals. For the function of these components, reference is made to the preceding description.
  • the movable contact of the switching contacts on a movable carriage 11 or a similar component is arranged, which protrudes from the housing 12 of the switch 2.
  • the switch 2 may be, for example, a contactor.
  • the auxiliary drive 6 then acts on this carriage 11, moves the carriage 11 and thus also the movable switching contact. As a result, opening or closing of the switching contacts is effected.
  • the positive opening device 7 acts on the carriage 11, on which the movable switching contact is arranged. How out Fig. 4 To recognize, both the positive opening device 7 and the grounding blade 8 are connected to the housing cover 13 of the power disconnecting device 1.
  • the connection of the grounding blade 8 with the housing cover 13 can for example be realized so that the grounding blade 8 is arranged on a guide 14 which is connected via a driver 15 with the housing cover 13. If the housing cover 13 is opened, the grounding blade 8 is moved over the driver 15 on the guide 14 and transferred to the grounding position.
  • the grounded state of the power disconnecting device 1 with operated forced opening device 7 is in Fig. 4 dashed lines.
  • the connection of the housing cover 13 is realized with the positive opening device 7 and the grounding blade 8 via a component.
  • This component is preferably designed so that when opening the housing cover 13, first the positive opening device 7 is actuated before the grounding blade 8 is transferred to the grounding position. Furthermore, the same precautionary measures apply as for the Fig. 1 to 3 described. In particular, it is provided that the forced opening device 7 blocks and prevents further opening of the housing cover 13 when the switching contacts can not be separated.
  • the power separation device 1 described can be used, for example, in high-voltage systems of passenger carriages. But it is also the use in multiple units, U- and trams possible.

Landscapes

  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Electrical Variables (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Surgical Instruments (AREA)
  • Power Sources (AREA)

Abstract

The invention relates to a power disconnecting device comprising a switch (2) that can be actuated by means of at least one auxiliary drive unit and is provided with switching contacts (4, 5). In order to make said power disconnecting device compact and lightweight while being able to adjust the same to different applications, the power disconnecting device comprises an additional manually operated positive opening mechanism (7) which acts upon the switching contacts of the switch. The inventive power disconnecting device thus uses one switching point less than conventional power disconnecting and grounding devices and can be designed in a more compact fashion.

Description

Die Erfindung betrifft eine Stromtrennvorrichtung, die einen mittels mindestens einem Hilfsantrieb betätigbaren, Schaltkontakte aufweisenden Schalter umfasst.The invention relates to a power disconnecting device comprising a switch which can be actuated by means of at least one auxiliary drive and has switch contacts.

Derartige Stromtrennvorrichtungen werden üblicherweise dafür eingesetzt, Verbraucher zu Wartungszwecken von einer Energieversorgungsanlage zu trennen. So weisen beispielsweise Reisezugwagen eine Stromtrenn- und Erdungsvorrichtung auf, um einen einzelnen Reisezugwagen aus einem aufgerüsteten Zugverband, der aus mehreren Reisezugwagen besteht, zu Wartungszwecken von der Zugsammelschiene zu trennen und zu erden. An diesem von der Energieversorgungsanlage getrennten und geerdeten Reisezugwagen können dann gefahrlos die Wartungsarbeiten durchgeführt werden.Such power disconnecting devices are usually used to separate consumers for maintenance of a power system. For example, passenger cars have a power disconnecting and earthing device for disconnecting and grounding a single passenger car from an upgraded train set consisting of multiple passenger carriages for maintenance purposes from the train bus bar. The maintenance work can then be carried out safely on this passenger car, which is separate from the power supply system and grounded.

Bisher werden zu diesem Zweck zwei separate Geräte eingesetzt. So ist zum einen ein Schalter bzw. Schütz erforderlich, der die Energieversorgungsanlagen des Reisezugwagens ein- bzw. ausschaltet. Zusätzlich dazu ist in dem Reisezugwagen eine separate Trenn- und Erdungseinrichtung vorhanden, die einen mechanisch betätigten Schalter mit separaten Schaltkontakten umfasst, der eine zusätzliche Trennung der Energieversorgungsanlagen von der Zugsammelschiene bewirkt. Dabei entsteht eine sichtbare Trennstelle. Der mechanisch betätigbare Schalter ist mit einer mechanischen Zwangstrennung ausgerüstet, die zu einer gewaltsamen Trennung der Schaltkontakte führt, falls diese beispielsweise miteinander verschweißt sind. Bei der Betätigung dieses mechanischen Schalters wird gleichzeitig eine Erdung der Verbraucher bzw. der Wagenanlage, beispielsweise durch Absenken eines Erdungsmessers, herbeigeführt und der Wagen zur Wartung freigegeben.So far, two separate devices are used for this purpose. Thus, on the one hand, a switch or contactor is required, which switches on or off the power supply systems of the passenger coach. In addition, in the passenger car a separate disconnecting and earthing device is provided, which comprises a mechanically actuated switch with separate switching contacts, which causes an additional separation of the power supply systems of the train busbar. This creates a visible separation point. The mechanically actuated switch is equipped with a mechanical positive separation, which leads to a violent separation of the switching contacts, if they are welded together, for example. Upon actuation of this mechanical switch grounding of the consumer or the car system, for example, by lowering a grounding blade, brought about and released the car for maintenance.

Zur Erzeugung eines sicheren Schaltzustands für Wartungsarbeiten sind also ein Schaltgerät zur Ein- und Ausschaltung der elektrischen Verbraucher und eine separate Trenn- und Erdungseinrichtung zur Erzeugung einer Wartungsstellung erforderlich. Der Einsatz von zwei separaten Geräten führt zu erhöhtem Platzbedarf. Das Dokument US 2006/049026 offenbart eine Vorrichtung nach dem Oberbegriff des Anspruchs 1.For generating a safe switching state for maintenance work, therefore, a switching device for switching on and off the electrical loads and a separate separation and grounding device for generating a maintenance position are required. The use of two separate devices leads to increased space requirements. The document US 2006/049026 discloses a device according to the preamble of claim 1.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Stromtrennvorrichtung bereitzustellen, mit der die zur Erzeugung eines sicheren Wartungszustands erforderlichen Maßnahmen durchgeführt werden können, die kompakt und leicht ist, an verschiedene Applikationen angepasst werden kann und somit auch zu einer Kostenoptimierung führt.It is therefore an object of the present invention to provide a power disconnecting device, with which the measures necessary for generating a secure maintenance state can be carried out, which is compact and lightweight, can be adapted to different applications and thus also leads to a cost optimization.

Hierzu ist erfindungsgemäß vorgesehen, dass die Stromtrennvorrichtung eine zusätzliche handbetriebene auf die Schaltkontakte des Schalters wirkende Zwangsöffnungseinrichtung aufweist.For this purpose, the invention provides that the power disconnecting device has an additional manually operated acting on the switch contacts of the switch positive opening device.

Da die handbetriebene Zwangsöffnungseinrichtung in die Stromtrennvorrichtung integriert ist, wird nur noch ein Gerät benötigt. Es sind somit ein kompakterer Aufbau und eine Gewichtsreduzierung der Stromtrennvorrichtung möglich.Since the manually operated forced opening device is integrated in the power disconnecting device, only one device is required. Thus, a more compact construction and a weight reduction of the power disconnecting device are possible.

Gemäß einer Ausführungsform der Erfindung ist vorgesehen, dass die Zwangsöffnungseinrichtung so mit einem Gehäuse der Stromtrennvorrichtung verbunden ist, dass ein Öffnen des Gehäuses der Stromtrennvorrichtung die Zwangsöffnungseinrichtung betätigt. Beim Öffnen des Gehäuses der Stromtrennvorrichtung wird somit automatisch eine Zwangsöffnung der Schaltkontakte des Schalters bewirkt. Es ist keine separate Betätigung einer Zwangsöffnungseinrichtung erforderlich, wodurch ein Öffnen des Gehäuses der Stromtrennvorrichtung bei geschlossenem Schalter verhindert wird. Bedienfehler werden so vermieden:According to one embodiment of the invention, it is provided that the positive opening device is connected to a housing of the power disconnecting device such that opening of the housing of the power disconnecting device actuates the forced opening device. When opening the housing of the power disconnecting device, a positive opening of the switch contacts of the switch is thus automatically effected. There is no separate operation of a forced opening device required, whereby opening of the housing of the power disconnecting device is prevented when the switch is closed. Operator errors are thus avoided:

Gemäß einer weiteren Variante ist vorgesehen, dass die Stromtrennvorrichtung eine mit der Zwangsöffnungseinrichtung verbundene Erdungseinrichtung aufweist. Bei Betätigung der Zwangsöffnungseinrichtung wird somit eine Erdung der Verbraucher herbeigeführt und ein für die Wartung sicherer Schaltzustand hergestellt.According to a further variant, it is provided that the power disconnecting device has a grounding device connected to the positive opening device. Upon actuation of the positive opening device, a grounding of the consumer is thus brought about and a safe switching state for maintenance is established.

In einer weiteren Ausführungsform ist vorgesehen, dass die Erdungseinrichtung sichtbar in der Stromtrennvorrichtung angeordnet ist. Es ist somit auch möglich, zu überprüfen, ob die Verbraucher tatsächlich geerdet sind, ohne das Gehäuse der Stromtrennvorrichtung zu öffnen.In a further embodiment it is provided that the grounding device is arranged visible in the power disconnecting device. It is thus also possible to check whether the consumers are actually grounded without opening the housing of the power disconnecting device.

Weiterhin kann vorgesehen werden, dass die Stromtrennvorrichtung eine mit der Zwangsöffnungseinrichtung verbundene sichtbare Trennstelle aufweist. Es kann also leicht überprüft werden, ob die Betätigung der Zwangsöffnungseinrichtung tatsächlich zu einer Trennung der Schaltkontakte geführt hat.Furthermore, it can be provided that the power disconnecting device has a visible disconnection point connected to the positive opening device. It can therefore be easily checked whether the operation of the positive opening device has actually led to a separation of the switching contacts.

In noch einer weiteren bevorzugten Ausführungsform der Erfindung weist die Stromtrennvorrichtung einen Blockierungsmechanismus auf, der ein Öffnen des Gehäuses der Stromtrennvorrichtung blockiert, wenn eine Zwangsöffnung der Schaltkontakte nicht möglich ist. Falls die Kontakte so miteinander verschweißt sind, dass eine Zwangsöffnung nicht möglich ist, ist es somit nicht möglich das Gehäuse der Stromtrenneinrichtung zu öffnen. Auf diese Weise wird eine Gefährdung des Bedienpersonals vermieden.In still another preferred embodiment of the invention, the power disconnecting device comprises a blocking mechanism which permits opening of the housing of the Power disconnect device blocked if forced opening of the switch contacts is not possible. If the contacts are welded together so that a forced opening is not possible, it is therefore not possible to open the housing of the power disconnecting device. In this way, a threat to the operator is avoided.

Gemäß einer weiteren Variante ist vorgesehen, dass die Stromtrennvorrichtung in dem Schalterzustand mit geöffneten Schaltkontakten, geöffneter Trennstelle und aktivierter Erdungseinrichtung verschließbar ist. Diese Schaltstellung ist die Wartungsstellung der Stromtrennvorrichtung. Durch das Verschließen dieser Schaltstellung ist ein Schutz vor unbeabsichtigten Wiedereinschalten während der Wartung möglich.According to a further variant, it is provided that the current-separating device can be closed in the switch state with opened switch contacts, opened disconnection point and activated earthing device. This switching position is the maintenance position of the power disconnecting device. By closing this switch position protection against unintentional restarting during maintenance is possible.

Nachfolgend werden Ausführungsformen der Erfindung anhand einer Zeichnung näher erläutert. Es zeigen:

Fig. 1
Schaltbild der Stromtrennvorrichtung im Normalbetrieb,
Fig. 2
Schaltbild der Stromtrennvorrichtung mit geöffnetem Schalter,
Fig. 3
Schaltbild der Stromtrennvorrichtung in Wartungsstellung und
Fig. 4
schematische Darstellung einer weiteren Ausführungsform der Stromtrennvorrichtung.
Embodiments of the invention will be explained in more detail with reference to a drawing. Show it:
Fig. 1
Circuit diagram of the power disconnecting device in normal operation,
Fig. 2
Circuit diagram of the power disconnecting device with open switch,
Fig. 3
Wiring diagram of the power disconnecting device in maintenance position and
Fig. 4
schematic representation of another embodiment of the power disconnecting device.

In Fig. 1 ist ein Schaltbild der Stromtrennvorrichtung 1 im Normalbetrieb gezeigt. Sowohl der Schalter 2 als auch die Erdungseinrichtung 3 sind geschlossen und die Verbraucher somit an die Energieversorgung angeschlossen.In Fig. 1 a circuit diagram of the power disconnecting device 1 is shown in normal operation. Both the switch 2 and the grounding device 3 are closed and the consumers are thus connected to the power supply.

Der Schalter 2 umfasst zwei Schaltkontakte 4, 5. Die Schaltkontakte 4, 5 werden mithilfe eines Hilfsantriebs 6 geöffnet und geschlossen. Die manuell betätigbar Zwangsöffnungseinrichtung 7 wirkt ebenfalls auf die Schaltkontakte 4, 5 ein. Die Zwangsöffnungseinrichtung 7 ist weiterhin mit der Erdungseinrichtung 3 verbunden.The switch 2 comprises two switching contacts 4, 5. The switching contacts 4, 5 are opened and closed by means of an auxiliary drive 6. The manually operable positive opening device 7 also acts on the switching contacts 4, 5 a. The forced opening device 7 is furthermore connected to the grounding device 3.

In Fig. 2 ist ein Schaltbild der Stromtrennvorrichtung 1 mit geöffnetem Schalter 2 dargestellt. Die Verbraucher sind somit von der Energieversorgung abgetrennt. Sollen Wartungsarbeiten durchgeführt werden, so wird erst der Schalter 2 über den Hilfsantrieb 6 geöffnet. Anschließend wird die Zwangsöffnungseinrichtung 7 betätigt. Die Zwangsöffnungseinrichtung 7 ist mit dem Gehäuse, vorzugsweise mit dem Gehäusedeckel, der Stromtrennvorrichtung 1 verbunden. Wird das Gehäuse, bzw. der Gehäusedeckel, der Stromtrenneinrichtung 1 geöffnet, um Wartungsarbeiten durchzuführen, so wird automatisch die Zwangsöffnungseinrichtung 7 betätigt. Die Zwangsöffnungseinrichtung 7 wirkt auf die Schaltkontakte 4, 5 ein. Können die Schaltkontakte 4, 5 nicht durch den Hilfsantrieb 6 geöffnet werden, beispielsweise weit sie miteinander verschweißt sind, so wird durch die Zwangsöffnungseinrichtung 7 eine gewaltsame Trennung der Schaltkontakte 4, 5 bewirkt.In Fig. 2 a circuit diagram of the power disconnecting device 1 is shown with open switch 2. The consumers are thus disconnected from the power supply. If maintenance work is to be carried out, then only the switch 2 via the auxiliary drive. 6 open. Subsequently, the forced opening device 7 is actuated. The forced opening device 7 is connected to the housing, preferably to the housing cover, of the power disconnecting device 1. If the housing, or the housing cover, the power disconnecting device 1 is opened to perform maintenance, the positive opening device 7 is automatically actuated. The positive opening device 7 acts on the switching contacts 4, 5 a. If the switching contacts 4, 5 can not be opened by the auxiliary drive 6, for example, far they are welded together, then the forced opening device 7 causes a violent separation of the switching contacts 4, 5.

Wie in Fig. 3 dargestellt, ragt die Zwangsöffnungseinrichtung nach ihrer Betätigung in die Schaltkontaktstelle hinein. Damit soll eine Zwangsöffnung der Schaltkontakte sichergestellt werden.As in Fig. 3 shown, the positive opening device protrudes after their operation in the switching contact point. This is intended to ensure positive opening of the switching contacts.

Lassen sich die Schaltkontakte 4, 5 auch durch die Zwangsöffnungseinrichtung 7 nicht voneinander trennen, so blockiert die Zwangsöffnungseinrichtung 7 und verhindert ein weiteres Öffnen des Gehäuses der Stromtrennvorrichtung 1.If the switching contacts 4, 5 can not be separated from one another by the positive opening device 7, then the forced opening device 7 blocks and prevents further opening of the housing of the current-separating device 1.

Sind die Schaltkontakte 4, 5 allerdings geöffnet, so bewegt die Zwangsöffnungseinrichtung 7 einen Erdungsmesser 8 und erdet die Verbraucher. Durch die Bewegung des Erdungsmessers 8 wird in der Stromtrennvorrichtung 1 weiterhin eine sichtbare Trennstelle 9 erzeugt. Vorzugsweise ist auch Erdungsstelle 10 sichtbar. Es kann somit leicht erkannt werden, dass die Verbraucher von der Energieversorgung getrennt und geerdet wurden und ein sicherer Wartungszustand hergestellt wurde.However, if the switching contacts 4, 5 are open, the positive opening device 7 moves a grounding blade 8 and grounds the consumers. By the movement of the grounding blade 8, a visible separation point 9 is further generated in the power disconnecting device 1. Preferably also grounding point 10 is visible. It can thus be easily recognized that the consumers were disconnected from the power supply and grounded and a safe maintenance condition was established.

Dieser Wartungszustand ist in Fig. 3 dargestellt. Um das Bedienpersonal während der Wartung vor unbeabsichtigtem Wiedereinschalten zu schützen, ist der Wartungszustand mit geöffnetem Schaltkontakten 4, 5, geöffneter Trennstelle 9 und geschlossener Erdungsstelle 10 verschließbar.This maintenance condition is in Fig. 3 shown. In order to protect the operator during maintenance from unintentional reconnection, the maintenance condition with open switch contacts 4, 5, open separation point 9 and closed grounding point 10 is closed.

Vorzugsweise ist die Zwangsöffnungseinrichtung 7, so mit dem Gehäuse der Stromtrennvorrichtung 1 verbunden, dass das Gehäuse der Stromtrennvorrichtung 1 nur dann wieder geschlossen werden kann, wenn die Erdung der Verbraucher aufgehoben wurde. Somit kann eine Gefährdung des Bedienpersonals ausgeschlossen werden.Preferably, the positive opening device 7, so connected to the housing of the power disconnecting device 1, that the housing of the power disconnecting device 1 can only be closed again when the grounding of the consumer was released. Thus, a threat to the operator can be excluded.

In Fig. 4 ist eine weitere Ausführungsform der Erfindung dargestellt. Gleiche Bauteile wie in den Figuren 1 bis 3 werden in Fig. 4 mit den gleichen Bezugszeichen bezeichnet. Für die Funktion dieser Bauteile wird auf die vorangegangene Beschreibung verwiesen.In Fig. 4 a further embodiment of the invention is shown. Same components as in the FIGS. 1 to 3 be in Fig. 4 denoted by the same reference numerals. For the function of these components, reference is made to the preceding description.

In dieser Ausführungsform ist der bewegliche Kontakt der Schaltkontakte auf einem beweglichen Schlitten 11 oder einem ähnlichen Bauteil angeordnet, der aus dem Gehäuse 12 des Schalters 2 herausragt. Bei dem Schalter 2 kann es sich beispielsweise um einen Schütz handeln. Der Hilfsantrieb 6 wirkt dann auf diesen Schlitten 11 ein, bewegt den Schlitten 11 und damit auch den beweglichen Schaltkontakt. Dadurch wird ein Öffnen oder Schließen der Schaltkontakte bewirkt.In this embodiment, the movable contact of the switching contacts on a movable carriage 11 or a similar component is arranged, which protrudes from the housing 12 of the switch 2. The switch 2 may be, for example, a contactor. The auxiliary drive 6 then acts on this carriage 11, moves the carriage 11 and thus also the movable switching contact. As a result, opening or closing of the switching contacts is effected.

Auch die Zwangsöffnungseinrichtung 7 wirkt auf den Schlitten 11 ein, auf dem der bewegliche Schaltkontakt angeordnet ist. Wie aus Fig. 4 zu erkennen, sind sowohl die Zwangsöffnungseinrichtung 7 als auch das Erdungsmesser 8 mit dem Gehäusedeckel 13 der Stromtrennvorrichtung 1 verbunden. Die Verbindung des Erdungsmessers 8 mit dem Gehäusedeckel 13 kann beispielsweise so realisiert werden, dass das Erdungsmesser 8 auf einer Führung 14 angeordnet ist, die über einen Mitnehmer 15 mit dem Gehäusedeckel 13 verbunden ist. Wird der Gehäusedeckel 13 geöffnet, so wird das Erdungsmesser 8 über den Mitnehmer 15 auf der Führung 14 bewegt und in die Erdungsstellung überführt. Der geerdete Zustand der Stromtrennvorrichtung 1 mit betätigter Zwangsöffnungseinrichtung 7 ist in Fig. 4 gestrichelt eingezeichnet. Vorzugsweise wird die Verbindung des Gehäusedeckels 13 mit der Zwangsöffnungseinrichtung 7 und dem Erdungsmesser 8 über ein Bauteil realisiert. Dieses Bauteil ist dabei vorzugsweise so ausgebildet, dass beim Öffnen des Gehäusedeckels 13 zuerst die Zwangsöffnungseinrichtung 7 betätigt wird, bevor das Erdungsmesser 8 in die Erdungsstellung überführt wird. Weiterhin gelten die gleichen Sichermaßnahmen wie für die Fig. 1 bis 3 beschrieben. Insbesondere wird vorgesehen, dass die Zwangsöffnungseinrichtung 7 blockiert und ein weiteres Öffnen des Gehäusedeckels 13 verhindert, wenn die Schaltkontakte nicht getrennt werden können.The positive opening device 7 acts on the carriage 11, on which the movable switching contact is arranged. How out Fig. 4 To recognize, both the positive opening device 7 and the grounding blade 8 are connected to the housing cover 13 of the power disconnecting device 1. The connection of the grounding blade 8 with the housing cover 13 can for example be realized so that the grounding blade 8 is arranged on a guide 14 which is connected via a driver 15 with the housing cover 13. If the housing cover 13 is opened, the grounding blade 8 is moved over the driver 15 on the guide 14 and transferred to the grounding position. The grounded state of the power disconnecting device 1 with operated forced opening device 7 is in Fig. 4 dashed lines. Preferably, the connection of the housing cover 13 is realized with the positive opening device 7 and the grounding blade 8 via a component. This component is preferably designed so that when opening the housing cover 13, first the positive opening device 7 is actuated before the grounding blade 8 is transferred to the grounding position. Furthermore, the same precautionary measures apply as for the Fig. 1 to 3 described. In particular, it is provided that the forced opening device 7 blocks and prevents further opening of the housing cover 13 when the switching contacts can not be separated.

Die beschriebene Stromtrennungsvorrichtung 1 kann beispielsweise in Hochspannungsanlagen von Reisezugwagen eingesetzt werden. Es ist aber auch der Einsatz in Triebzügen, U- und Straßenbahnen möglich.The power separation device 1 described can be used, for example, in high-voltage systems of passenger carriages. But it is also the use in multiple units, U- and trams possible.

Claims (6)

  1. A power disconnecting device (1) for railroads used in railroad traffic, comprising a switch (2) that can be actuated by means of at least one auxiliary drive unit (6) and is provided with switching contacts (4, 5), wherein the power disconnecting device (1) comprises an additional manually operated positive opening mechanism (7) which acts upon the switching contacts (4, 5) of the switch (2), characterized in that the power disconnecting device (1) comprises a grounding device (3) connected to the positive opening mechanism (7) and including a grounding blade (8) transferable from an operating position into a grounding position.
  2. The power disconnecting device (1) of claim 1, characterized in that the positive opening mechanism (7) is connected to a casing of the power disconnecting device (1) in such a way that the positive opening mechanism (7) is actuated when the casing of the power disconnecting device (1) is opened.
  3. The power disconnecting device (1) of claim 1 or 2, characterized in that the grounding device (3) is visibly arranged in the power disconnecting device (1).
  4. The power disconnecting device (1) of one of claims 1 to 3, characterized in that the power disconnecting device (1) comprises a visible point of separation (9) connected to the positive opening mechanism (7).
  5. The power disconnecting device (1) of one of claims 1 to 4, characterized in that the power disconnecting device (1) comprises a blocking mechanism for blocking an opening of the casing of the power disconnecting device (1) if a positive opening of the switching contacts (4, 5) is not possible.
  6. The power disconnecting device (1) of one of claims 1 to 5, characterized in that the power disconnecting device (1) is lockable in the switching state in which the switching contacts (4, 5) are opened, the point of separation (9) is opened and the grounding point (10) is closed.
EP07711631A 2006-03-16 2007-02-22 Power disconnecting device Not-in-force EP1994538B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006012231A DE102006012231A1 (en) 2006-03-16 2006-03-16 Current separation device
PCT/EP2007/001547 WO2007104411A1 (en) 2006-03-16 2007-02-22 Power disconnecting device

Publications (2)

Publication Number Publication Date
EP1994538A1 EP1994538A1 (en) 2008-11-26
EP1994538B1 true EP1994538B1 (en) 2010-04-21

Family

ID=38016739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711631A Not-in-force EP1994538B1 (en) 2006-03-16 2007-02-22 Power disconnecting device

Country Status (8)

Country Link
EP (1) EP1994538B1 (en)
JP (1) JP4853743B2 (en)
CN (1) CN101443867B (en)
AT (1) ATE465503T1 (en)
DE (2) DE102006012231A1 (en)
ES (1) ES2342216T3 (en)
HK (1) HK1121580A1 (en)
WO (1) WO2007104411A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR148400A0 (en) 2000-11-14 2000-12-07 Cochlear Limited Apparatus for delivery of pharmaceuticals to the cochlea
CN106625728A (en) * 2016-11-17 2017-05-10 马艳敏 Household auxiliary device for cutting off power source

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8510203D0 (en) * 1985-04-22 1985-05-30 Ass Elect Ind Switchgear
JPH082121B2 (en) * 1990-02-28 1996-01-10 株式会社日立製作所 Power supply circuit control device for railway vehicles
JPH087717A (en) * 1994-06-17 1996-01-12 Meidensha Corp Operating mechanism of switchgear
WO2001028062A1 (en) * 1999-10-08 2001-04-19 Packard Bioscience Company Electrical device shock hazard protection system
JP3801962B2 (en) * 2002-07-17 2006-07-26 財団法人鉄道総合技術研究所 Impulse power supply stop device for railway vehicles
ITBG20030018A1 (en) * 2003-03-07 2004-09-08 Abb Service Srl LOW VOLTAGE SWITCH AND RELATED DEVICE
US7019229B1 (en) * 2004-09-03 2006-03-28 Eaton Corporation Door interlock assembly and draw-out circuit breaker assembly employing the same
CN2747757Y (en) * 2004-09-30 2005-12-21 四川电气设备成套厂 Visible breakpoint safety isolation switching box

Also Published As

Publication number Publication date
CN101443867B (en) 2012-03-28
ES2342216T3 (en) 2010-07-02
DE102006012231A1 (en) 2007-09-20
ATE465503T1 (en) 2010-05-15
HK1121580A1 (en) 2009-04-24
JP2009529737A (en) 2009-08-20
DE502007003511D1 (en) 2010-06-02
EP1994538A1 (en) 2008-11-26
CN101443867A (en) 2009-05-27
WO2007104411A1 (en) 2007-09-20
JP4853743B2 (en) 2012-01-11

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