EP0606265B1 - Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube - Google Patents
Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube Download PDFInfo
- Publication number
- EP0606265B1 EP0606265B1 EP92919461A EP92919461A EP0606265B1 EP 0606265 B1 EP0606265 B1 EP 0606265B1 EP 92919461 A EP92919461 A EP 92919461A EP 92919461 A EP92919461 A EP 92919461A EP 0606265 B1 EP0606265 B1 EP 0606265B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- pole
- vacuum
- toggle
- support lever
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H2003/323—Driving mechanisms, i.e. for transmitting driving force to the contacts the mechanisms being adjustable
Definitions
- the invention relates to a multi-pole vacuum switch with a rectilinearly movable drive plunger having a vacuum interrupter per pole and a pole drive unit assigned to each vacuum interrupter Contact force spring and a housing supporting the lever arrangement and the contact force spring.
- a vacuum switch of this type has become known from DE-A-34 14 016.
- One of the properties of the vacuum switch described there is that the drive device is loaded by the contact forces of all poles when the vacuum interrupters are switched on. These forces are transmitted in a known manner from the lever arrangement to the drive device via an insulating coupling rod and have to be supported there.
- the invention has for its object to reduce the stress on the drive device by the reaction of the contact forces. At the same time, a shift of the contact force springs as a whole is to be avoided when switching on and off by a one-sided fixed support, as is known per se (cf. DE-A-33 00 979).
- the lever arrangement comprises two toggle levers, one of which is articulated to the drive plunger of the vacuum interrupter and the other is articulated to a support lever which is pivotally mounted at one end on the housing, at his is connected at the other end to the contact force spring and, in its rest position, extends approximately at right angles to the direction of movement of the drive plunger Assumes position while the toggle levers of the ON position of the vacuum switch are close to their extended position.
- the specified arrangement of the toggle levers ensures that most of the reaction of the contact force springs is supported in each pole in the lever arrangement itself and in particular in the housing receiving the lever arrangement.
- the drive device of the vacuum switch and the parts used to transmit the driving force to the pole drive unit are thus largely mechanically relieved. This relief occurs regardless of whether the toggle levers are in the forward or overstretched position.
- the contact force spring is not moved as a whole during the switching operations, but can be supported in a stationary manner at one end, since a connection to the support lever belonging to the lever arrangement is only required at the opposite end.
- the toggle lever connected to the support lever can be extended beyond the knee joint and the protruding lever part formed thereby can be designed as a coupling point with an insulating coupling rod connecting the drive device to the pole drive unit.
- the connection of the coupling rod to the pole drive unit is facilitated because the knee joint bolt, apart from the connection of the toggle levers, has no other function to take over.
- the length of the protruding lever part there is the possibility of influencing the transmission ratio of the lever arrangement.
- the protruding lever part can have at least two passage openings arranged at different distances from the end of the one toggle lever connected to the support lever for the optional insertion of a coupling bolt, through which the drive device is connected to the pole drive unit.
- the transmission ratio of the lever arrangement can be easily changed with unchanged movement of the drive device, for example if a vacuum interrupter with a larger or smaller switching stroke is to be used with an otherwise unchanged overall arrangement.
- the articulated connection of one toggle lever to the support lever can be made adjustable;
- an elongated hole for guiding a hinge pin, an eyebolt penetrated by the hinge pin and the position of the eyebolt relative to the support lever can be provided in the support lever.
- a favorable arrangement of the contact force spring in the pole drive unit can be achieved in that a crosspiece is arranged in the housing as an abutment of the support lever in its rest position and at the same time as an abutment for one end of the contact force spring designed as a helical compression spring, with an opening for the opposite End of the contact force spring with the support lever connecting rod is provided.
- Figure 1 shows a pole of a multi-pole vacuum switch with a pole drive unit in a side view.
- FIGS. 2 and 3 show, in an enlarged view compared to FIG. 1, a pole drive unit with adjacent parts.
- FIGS. 4 and 5 show a housing of a pole drive unit as an individual part in two views.
- the vacuum circuit breaker 1 shown in FIG. 1 comprises, as essential assemblies, a box-shaped housing 2 with a drive device 3 therein, indicated by dashed lines, switching poles 4, each with a pole drive unit 5, and support insulators 6 for the insulated connection of the switching poles 4 to the housing 2 the view of the circuit breaker 1 in a side view, only one of the switching poles 4 is visible in FIG. 1.
- Each switching pole 4 contains a vacuum switching tube 10 which extends with a vertical longitudinal axis between a pole head 11 and the pole drive unit 5 of the switching pole 4 in question. Details of the vacuum interrupter 10 are not shown, since any suitable interrupter can be used. In a known manner, the switching elements of the vacuum interrupter 10, not shown, can be closed and opened by a linear movement of a lower connecting bolt 12 which projects into the pole drive unit 5.
- the fixed contact piece of the vacuum interrupter 10 is connected to an upper connecting bar 13 via the associated connecting bolt and a clamping device, while the movable contact piece is likewise connected to a lower connecting bar 15 via a clamping device and a flexible current band 14.
- the pole drive unit 5 has a housing 16 with a U-shaped cross section, that as an individual part in FIG. 4 in a side view corresponding to FIG and is shown in Figure 5 in plan view.
- a housing 16 with a U-shaped cross section, that as an individual part in FIG. 4 in a side view corresponding to FIG and is shown in Figure 5 in plan view.
- elongated holes 18 are arranged, which serve to guide an articulated bolt 20 which connects the movable connecting bolt 12 of the vacuum interrupter 10 with an upper toggle lever 21 (FIG. 1).
- a lower toggle lever 22 is connected to the upper toggle lever 21 by a knee joint pin 23 and likewise articulatedly connected to a support lever 25 by a connecting bolt 24 at its other end.
- the support lever 25 is connected by a further hinge pin 28 to a pull rod 30 which carries an abutment 31 at the opposite end for supporting a contact force spring 32 designed as a helical compression spring.
- the pull rod 30 extends through an opening in a crosspiece 33 which is provided with pins 34 which engage in rectangular openings 35 in the legs 17 of the housing 16 (FIG. 4).
- the lower toggle lever 22 has a protruding lever part 36 which projects beyond the knee joint pin 23 and which is provided with two through openings 37 for the optional insertion of a coupling pin 38. 1 shows an insulating coupling rod 39 which connects the indicated drive device 3 to the lever part 36.
- FIGS. 2 and 3 The mode of operation of the pole drive unit 5 is shown in more detail in FIGS. 2 and 3, in which only the pole drive unit 5 with the adjacent parts is shown in a representation corresponding to FIG. 1.
- the support lever 25 rests against the crosspiece 33 at its end opposite the bearing pin 26 with a prestress given by the contact force spring 32.
- the toggle levers 21 and 22 are in a bent position.
- the existing between the toggle levers 21 and 22 Angle depends on an adjusting device which is arranged between the lower toggle lever 22 and the support lever 25. As can be seen in more detail in FIG.
- the adjusting device comprises an eyebolt 40, the threaded shaft of which passes through a central part 41 of the support lever 25 which is U-shaped in cross section. Nuts 42 on both sides of the middle part 41 allow the position of the eye part 43 of the eye screw 40 to be adjusted relative to the middle part 41.
- the connecting bolt 24 passes through the lower end of the lower toggle lever 22 and elongated holes 44 in the legs of the support lever 25.
- the drive device 3 (FIG. 1) is released for switching on, the drive force is transmitted to the lever part 36 via the insulating coupling rod 39.
- a larger or smaller transmission ratio results for the same angle of rotation of the switch shaft.
- the adjusting device consisting of the eyebolt 40 and the nuts 42 on the underside of the pole drive unit 5 is easily accessible. It is therefore not difficult to make an adjustment of the toggle lever arrangement on the fully assembled circuit breaker 1.
- the contact force spring 32 is supported on one side on the cross piece 33, so that its mass is not moved as a whole when switching. This avoids the tendency to natural vibrations and reduces the drive force to be applied compared to known arrangements in which the contact force spring is arranged in the course of the power transmission.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Die Erfindung betrifft einen mehrpoligen Vakuumschalter mit einer einen geradlinig bewegbaren Antriebsstößel aufweisenden Vakuumschaltröhre je Pol und einer jeder Vakuumschaltröhre zugeordneten Polantriebseinheit, die eine Hebelanordnung zur Umlenkung der von einer für alle Pole gemeinsamen Antriebsvorrichtung bereitgestellten Antriebskraft auf den Antriebsstößel und eine etwa parallel zur Bewegungsrichtung des Antriebsstößels angeordnete Kontaktkraftfeder sowie ein die Hebelanordnung und die Kontaktkraftfeder abstützendes Gehäuse aufweist.The invention relates to a multi-pole vacuum switch with a rectilinearly movable drive plunger having a vacuum interrupter per pole and a pole drive unit assigned to each vacuum interrupter Contact force spring and a housing supporting the lever arrangement and the contact force spring.
Ein Vakuumschalter dieser Art ist durch die DE-A-34 14 016 bekannt geworden. Zu den Eigenschaften des dort beschriebenen Vakummschalters gehört es, daß die Antriebsvorrichtung bei eingeschalteten Vakuumschaltröhren durch die Kontaktkräfte aller Pole belastet ist. Diese Kräfte werden in bekannter Weise von der Hebelanordnung über eine isolierende Koppelstange auf die Antriebsvorrichtung übertragen und müssen dort abgestützt werden. Der Erfindung liegt die Aufgabe zugrunde, die Beanspruchung der Antriebsvorrichtung durch die Rückwirkung der Kontaktkräfte zu vermindern. Gleichzeitig soll beim Ein- und Ausschalten durch eine einseitige feste Abstützung eine Verschiebung der Kontaktkraftfedern insgesamt vermieden werden, wie dies an sich bekannt ist (vgl. DE-A-33 00 979).A vacuum switch of this type has become known from DE-A-34 14 016. One of the properties of the vacuum switch described there is that the drive device is loaded by the contact forces of all poles when the vacuum interrupters are switched on. These forces are transmitted in a known manner from the lever arrangement to the drive device via an insulating coupling rod and have to be supported there. The invention has for its object to reduce the stress on the drive device by the reaction of the contact forces. At the same time, a shift of the contact force springs as a whole is to be avoided when switching on and off by a one-sided fixed support, as is known per se (cf. DE-A-33 00 979).
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Hebelanordnung zwei Kniehebel umfaßt, von denen der eine gelenkig mit dem Antriebsstößel der Vakuumschaltröhre und der andere gelenkig mit einem Stützhebel verbunden ist, der an seinem einen Ende an dem Gehäuse schwenbar gelagert ist, an seinem anderen Ende mit der Kontaktkraftfeder verbunden ist und in seiner Ruhelage eine etwa rechtwinklig zur Bewegungsrichtung des Antriebsstößels verlaufende Stellung einnimmt, während sich die Kniehebel der EIN-Stellung des Vakuumschalters nahe ihrer Strecklage befinden.This object is achieved according to the invention in that the lever arrangement comprises two toggle levers, one of which is articulated to the drive plunger of the vacuum interrupter and the other is articulated to a support lever which is pivotally mounted at one end on the housing, at his is connected at the other end to the contact force spring and, in its rest position, extends approximately at right angles to the direction of movement of the drive plunger Assumes position while the toggle levers of the ON position of the vacuum switch are close to their extended position.
Durch die angegebene Anordnung der Kniehebel wird erreicht, daß der größte Teil der Rückwirkung der Kontaktkraftfedern in jedem Pol in der Hebelanordnung selbst und insbesondere in dem die Hebelanordnung aufnehmenden Gehäuse abgestützt wird. Die Antriebsvorrichtung des Vakuumschalters und die zur Übertragung der Antriebskraft auf die Polantriebseinheit dienenden Teile sind damit weitgehend mechanisch entlastet. Diese Entlastung tritt unabhängig davon ein, ob sich die Kniehebel in der Vor- oder der Überstrecklage befinden. Die Kontaktkraftfeder wird bei den Schaltvorgängen nicht insgesamt mitbewegt, sondern kann an einem Ende ortsfest abgestützt sein, da nur am gegenüberliegenden Ende eine Verbindung mit dem zu der Hebelanordnung gehörenden Stützhebel, benötigt wird.The specified arrangement of the toggle levers ensures that most of the reaction of the contact force springs is supported in each pole in the lever arrangement itself and in particular in the housing receiving the lever arrangement. The drive device of the vacuum switch and the parts used to transmit the driving force to the pole drive unit are thus largely mechanically relieved. This relief occurs regardless of whether the toggle levers are in the forward or overstretched position. The contact force spring is not moved as a whole during the switching operations, but can be supported in a stationary manner at one end, since a connection to the support lever belonging to the lever arrangement is only required at the opposite end.
Nach einer Weiterbildung der Erfindung kann der mit dem Stützhebel verbundene Kniehebel über das Kniegelenk hinaus verlängert sein und der hierdurch gebildete überstehende Hebelteil kann als Kupplungsstelle mit einer die Antriebsvorrichtung mit der Polantriebseinheit verbindenden isolierenden Koppelstange ausgebildet sein. Hierdurch wird einerseits die Verbindung der Koppelstange mit der Polantriebseinheit erleichtert, weil der Kniegelenkbolzen außer der Verbindung der Kniehebel keine weitere Funktion zu übernehmen hat. Andererseits besteht durch geeignete Wahl der Länge des überstehenden Hebelteiles die Möglichkeit, das Übersetzungsverhältnis der Hebelanordnung zu beeinflussen.According to a development of the invention, the toggle lever connected to the support lever can be extended beyond the knee joint and the protruding lever part formed thereby can be designed as a coupling point with an insulating coupling rod connecting the drive device to the pole drive unit. In this way, on the one hand, the connection of the coupling rod to the pole drive unit is facilitated because the knee joint bolt, apart from the connection of the toggle levers, has no other function to take over. On the other hand, through a suitable choice of the length of the protruding lever part, there is the possibility of influencing the transmission ratio of the lever arrangement.
Der überstehende Hebelteil kann wenigstens zwei mit unterschiedlichem Abstand zu dem mit dem Stützhebel verbundenen Ende des einen Kniehebels angeordnete Durchtrittsöffnungen zum wahlweisen Einsetzen eines Kupplungsbolzens besitzen, durch den die Antriebsvorrichtung mit der Polantriebseinheit verbunden ist. Auf diese Weise kann das Übersetzungverhältnis der Hebelanordnung bei unveränderter Bewegung der Antriebsvorrichtung leicht verändert werden, wenn beispielsweise bei ansonsten unveränderter Gesamtanordnung eine Vakuumschaltröhre mit größerem oder kleinerem Schalthub benutzt werden soll.The protruding lever part can have at least two passage openings arranged at different distances from the end of the one toggle lever connected to the support lever for the optional insertion of a coupling bolt, through which the drive device is connected to the pole drive unit. In this way, the transmission ratio of the lever arrangement can be easily changed with unchanged movement of the drive device, for example if a vacuum interrupter with a larger or smaller switching stroke is to be used with an otherwise unchanged overall arrangement.
Die gelenkige Verbindung des einen Kniehebels mit dem Stützhebel kann einstellbar ausgebildet sein; hierzu können in dem Stützhebel ein Langloch zur Führung eines Gelenkbolzens, eine von dem Gelenkbolzen durchsetzte Augenschraube und die Stellung der Augenschraube gegenüber dem Stützhebel bestimmende Muttern vorgesehen sein. Diese Anordnung hat den Vorteil einer guten Zugänglichkeit der zur Einstellung der gelenkigen Verbindung vorgesehenen Teile, weil der Stützhebel, wie bereits erläutert, in seiner Ruhestellung eine etwa rechtwinklig zur Bewegungsrichtung des Antriebsstößels verlaufende Stellung einnimmt. Die zur Einstellung benötigten Teile sind daher etwa in der axialen Verlängerung der Vakuumschaltröhre an der Unterseite der Polantriebseinheit zugänglich.The articulated connection of one toggle lever to the support lever can be made adjustable; For this purpose, an elongated hole for guiding a hinge pin, an eyebolt penetrated by the hinge pin and the position of the eyebolt relative to the support lever can be provided in the support lever. This arrangement has the advantage of good accessibility of the parts provided for adjusting the articulated connection, because, as already explained, the support lever, in its rest position, assumes a position approximately at right angles to the direction of movement of the drive tappet. The parts required for adjustment are therefore accessible in the axial extension of the vacuum interrupter on the underside of the pole drive unit.
Eine günstige Anordnung der Kontaktkraftfeder in der Polantriebseinheit ist dadurch zu erreichen, daß in dem Gehäuse als Widerlager des Stützhebels in seiner Ruhestellung und zugleich als Widerlager für das eine Ende der als Schraubendruckfeder ausgebildeten Kontaktkraftfeder ein Querstück angeordnet ist, daß mit einer Durchtrittsöffnung für eine das gegenüberliegende Ende der Kontaktkraftfeder mit dem Stützhebel verbindende Zugstange versehen ist.A favorable arrangement of the contact force spring in the pole drive unit can be achieved in that a crosspiece is arranged in the housing as an abutment of the support lever in its rest position and at the same time as an abutment for one end of the contact force spring designed as a helical compression spring, with an opening for the opposite End of the contact force spring with the support lever connecting rod is provided.
Die Erfindung wird im folgenden anhand des in den Figuren dargestellten Ausführungsbeispieles näher erläutert.The invention is explained below with reference to the embodiment shown in the figures.
Die Figur 1 zeigt einen Pol eines mehrpoligen Vakuumschalters mit einer Polantriebseinheit in einer Seitenansicht.Figure 1 shows a pole of a multi-pole vacuum switch with a pole drive unit in a side view.
Die Figuren 2 und 3 zeigen in einer gegenüber der Figur 1 vergrößerten Darstellung eine Polantriebseinheit mit angrenzenden Teilen.FIGS. 2 and 3 show, in an enlarged view compared to FIG. 1, a pole drive unit with adjacent parts.
In den Figuren 4 und 5 ist ein Gehäuse einer Polantriebseinheit als Einzelteil in zwei Ansichten dargestellt.FIGS. 4 and 5 show a housing of a pole drive unit as an individual part in two views.
Der in der Figur 1 gezeigte Vakuum-Leistungsschalter 1 umfaßt als wesentliche Baugruppen ein kastenförmiges Gehäuse 2 mit einer darin befindlichen, gestrichelt angedeuteten Antriebsvorrichtung 3, Schaltpole 4 mit je einer Polantriebseinheit 5 und Stützisolatoren 6 zur isolierten Verbindung der Schaltpole 4 mit dem Gehäuse 2. Wegen der Darstellung des Leistungsschalters 1 in einer Seitenansicht ist nur einer der Schaltpole 4 in der Figur 1 sichtbar.The vacuum circuit breaker 1 shown in FIG. 1 comprises, as essential assemblies, a box-
Jeder Schaltpol 4 enthält eine Vakuumschaltröhre 10, die sich mit vertikaler Längsachse zwischen einem Polkopf 11 und der Polantriebseinheit 5 des betreffenden Schaltpoles 4 erstreckt. Einzelheiten der Vakuumschaltröhre 10 sind nicht dargestellt, da eine beliebige geeignete Schaltröhre verwendbar ist. In bekannter Weise können die nicht gezeigten Schaltstücke der Vakuumschaltröhre 10 durch eine geradlinige Bewegung eines unteren Anschlußbolzens 12, der in die Polantriebseinheit 5 hineinragt, geschlossen und geöffnet werden. Dabei steht das feststehende Schaltstück der Vakuumschaltröhre 10 über den zugehörigen Anschlußbolzen und eine Klemmvorrichtung mit einer oberen Anschlußschiene 13 in Verbindung, während das bewegbare Schaltstück gleichfalls über eine Klemmvorrichtung und ein biegsames Stromband 14 mit einer unteren Anschlußschiene 15 verbunden sind.Each switching pole 4 contains a
Im folgenden wird der Aufbau der Polantriebseinheit 5 näher beschrieben. Die Polantriebseinheit 5 besitzt ein im Querschnitt U-förmiges Gehäuse 16, daß als Einzelteil in der Figur 4 in einer der Figur 1 entsprechenden Seitenansicht und in der Figur 5 in der Draufsicht gezeigt ist. In parallelen Schenkeln 17 des Gehäuses 16 sind Langlöcher 18 angeordnet, die zur Führung eines Gelenkbolzens 20 dienen, der den bewegbaren Anschlußbolzen 12 der Vakuumschaltröhre 10 mit einem oberen Kniehebel 21 (Figur 1) verbindet. Ein unterer Kniehebel 22 ist durch einen Kniegelenkbolzen 23 mit dem oberen Kniehebel 21 verbunden und an seinem anderen Ende gleichfalls gelenkig durch einen Verbindungsbolzen 24 mit einem Stützhebel 25 verbunden. Als Schwenklager des Stützhebels 25 dient ein Lagerstift 26, der sich durch Öffnungen 27 in den gegenüberliegenden Schenkeln 17 des Gehäuses 16 erstreckt. An seinem den Lagerstift 26 gegenüberliegenden Ende ist der Stützhebel 25 durch einen weiteren Gelenkbolzen 28 mit einer Zugstange 30 verbunden, die am gegenüberliegenden Ende ein Widerlager 31 zur Abstützung einer als Schraubendruckfeder ausgebildeten Kontaktkraftfeder 32 trägt. Die Zugstange 30 erstreckt sich durch eine Öffnung in einem Querstück 33, das mit Zapfen 34 versehen ist, die in rechteckige Öffnungen 35 der Schenkel 17 des Gehäuses 16 (Figur 4) eingreifen. Der untere Kniehebel 22 besitzt einen über den Kniegelenkbolzen 23 hinausragenden überstehenden Hebelteil 36, der mit zwei Durchtrittsöffnungen 37 zum wahlweisen Einsetzen eines Kupplungsbolzens 38 versehen ist. In der Figur 1 ist eine isolierende Koppelstange 39 gezeigt, welche die angedeutete Antriebsvorrichtung 3 mit dem Hebelteil 36 verbindet.The structure of the pole drive unit 5 is described in more detail below. The pole drive unit 5 has a
Die Wirkungsweise der Polantriebseinheit 5 geht näher aus den Figuren 2 und 3 hervor, in denen in einer der Figur 1 entsprechenden Darstellung nur die Polantriebseinheit 5 mit den angrenzenden Teilen gezeigt ist. Im Ruhezustand gemäß der Figur 2, welcher der Ausschaltstellung der Vakuumschaltröhre 10 entspricht, liegt der Stützhebel 25 an seinem den Lagerstift 26 gegenüberliegenden Ende an dem Querstück 33 mit einer durch die Kontaktkraftfeder 32 gegebenen Vorspannung an. Die Kniehebel 21 und 22 befinden sich in einer ausgeknickten Stellung. Der zwischen den Kniehebeln 21 und 22 bestehende Winkel hängt von einer Einstellvorrichtung ab, die zwischen dem unteren Kniehebel 22 und dem Stützhebel 25 angeordnet ist. Wie näher der Figur 2 zu entnehmen ist, umfaßt die Einstellvorrichtung eine Augenschraube 40, deren Gewindeschaft ein Mittelteil 41 des im Querschnitt U-förmigen Stützhebels 25 durchsetzt. Muttern 42 beidseitig des Mittelteiles 41 gestatten es, die Lage des Augenteiles 43 der Augenschraube 40 relativ zu dem Mittelteil 41 einzustellen. Der Verbindungsbolzen 24 durchsetzt das untere Ende des unteren Kniehebels 22 und Langlöcher 44 in den Schenkeln des Stützhebels 25. Mittels der Einstellvorrichtung läßt sich der maximale Hub festlegen, der ausgehend von der Stellung der Kniehebel 21 und 22 in der Figur 2 bis zu deren Stellung gemäß der Figur 3 zurückgelegt werden kann.The mode of operation of the pole drive unit 5 is shown in more detail in FIGS. 2 and 3, in which only the pole drive unit 5 with the adjacent parts is shown in a representation corresponding to FIG. 1. In the idle state according to FIG. 2, which corresponds to the switched-off position of the
Wird die Antriebsvorrichtung 3 (Figur 1) zum Einschalten freigegeben, so wird die Antriebskraft über die isolierende Koppelstange 39 auf den Hebelteil 36 übertragen. Je nachdem, mit welchem der Durchtrittsöffnungen 37 der Kupplungsbolzen 38 für die Koppelstange 39 eingesetzt ist, ergibt sich bei gleichem Drehwinkel der Schalterwelle ein größeres oder kleineres Übersetzungsverhältnis. Bei der Überführung der Kniehebel 21 und 22 in Richtung der Strecklage gleitet der Gelenkbolzen 20 in den Langlöchern 18 unter gleichzeitiger Verschiebung des Anschlußbolzens 12 und des damit verbundenen, im Inneren der Vakuumschaltröhre 10 befindlichen bewegbaren Schaltstückes. Sind die Schaltstücke geschlossen, so wird der Stützhebel 25 entgegen dem Uhrzeigersinn geschwenkt und dabei von dem Querstück 33 abgehoben. Hierdurch wird durch Spannung der Kontaktkraftfeder 32 mittels der Zugstange 30 die Kontaktkraft zwischen den Schaltstücken aufgebracht. In der Einschaltstellung gemäß der Figur 3 befinden sich die Kniehebel 21 und 22 kurz vor ihrer Strecklage. Die isolierende Koppelstange 39 und die mit ihr verbundene Antriebsvorrichtung 3 sind daher von der Kontaktkraft weitgehend entlastet. Es ist zweckmäßig, die Annäherung der Kniehebel 21 und 22 an die Strecklage nur soweit vorzusehen, daß die verbleibende, auf die Koppelstange 39 wirkende Kraft sicher ausreicht, nach Freigabe der Antriebsvorrichtung 3 zum Ausschalten den Ausschaltvorgang unverzüglich einzuleiten.If the drive device 3 (FIG. 1) is released for switching on, the drive force is transmitted to the
Wie die Figuren zeigen, ist die aus der Augenschraube 40 und den Muttern 42 bestehende Einstellvorrichtung an der Unterseite der Polantriebseinheit 5 leicht zugänglich. Daher bereitet es keine Schwierigkeiten, an dem fertig montierten Leistungsschalter 1 eine Justierung der Kniehebelanordnung vorzunehmen. Die Kontaktkraftfeder 32 ist an dem Querstück 33 einseitig abgestützt, so daß beim Schalten ihre Masse nicht insgesamt mitbewegt wird. Dies vermeidet die Neigung zu Eigenschwingungen und vermindert die aufzubringende Antriebskraft gegenüber bekannten Anordnungen, bei denen die Kontaktkraftfeder im Zuge der Kraftübertragung angeordnet ist.As the figures show, the adjusting device consisting of the
Claims (5)
- Multi-pole vacuum switch (1) having one vacuum switching tube (10) per pole, which vacuum switching tube (10) has a linearly movable driving plunger (12), and having a pole drive unit (5) which is associated with each vacuum switching tube (10) and has a lever arrangement for the diversion of the driving force, provided by a drive arrangement (3) common to all the poles, to the driving plunger (12) and a contact force spring (32) which is arranged substantially parallel to the direction of movement of the driving plunger (12) and also a housing (16) which supports the lever arrangement and the contact force spring (32),
characterised in that the lever arrangement comprises two toggle levers (21, 22) of which the one (21) is connected in an articulated manner with the driving plunger (12) of the vacuum switching tube (10) and the other (22) is connected in an articulated manner with a support lever (25) which at its one end is swing-mounted on the housing (16), at its other end is connected with the contact force spring (32) and in its rest position occupies a position extending substantially at right angles to the direction of movement of the driving plunger (12), whilst the toggle levers (21, 22) in the ON-position of the vacuum switch (1) are close to their stretched position. - Vacuum switch according to claim 1,
characterised in that the toggle lever (22) connected with the support lever (25) is extended beyond a toggle joint pin (23) connecting the toggle levers (21, 22) and in that the projecting lever portion (36) formed in this way is designed as a coupling point with an insulating coupling rod (39) which connects the drive arrangement (3) with the pole drive unit (5). - Vacuum switch according to claim 2,
characterised in that the projecting lever portion (36) has at least two through-openings (37), arranged at different distances from the end of the one toggle lever (22) that is connected with the support lever (25), for selective insertion of a coupling pin (38) by means of which the drive arrangement (3) is connected with the pole drive unit (5). - Vacuum switch according to one of the preceding claims, characterised in that the articulated connection of the one toggle lever (22) with the support lever (25) is established in an adjustable manner and to this purpose there are provided in the support lever (25) an elongated hole (44) for the guidance of a connecting pin (24), an eye bolt (40) through which the connecting pin (24) passes and nuts (42) determining the position of the eye bolt (40) in relation to the support lever (25).
- Vacuum switch according to one of the preceding claims, characterised in that arranged in the housing (16) of the pole drive unit (5) as an abutment of the support lever (25) in its rest position and at the same time as an abutment for the one end of the contact force spring (32), formed as a helical compression spring, there is a cross-piece (33) which is provided with a through-opening for a tension rod (30) which connects the opposite end of the contact force spring (33) with the support lever (25).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4133092 | 1991-09-30 | ||
| DE4133092A DE4133092A1 (en) | 1991-09-30 | 1991-09-30 | MULTIPOLE VACUUM SWITCH WITH A POLAR DRIVE UNIT FOR EVERY VACUUM SWITCH TUBE |
| PCT/DE1992/000785 WO1993007635A1 (en) | 1991-09-30 | 1992-09-11 | Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0606265A1 EP0606265A1 (en) | 1994-07-20 |
| EP0606265B1 true EP0606265B1 (en) | 1995-07-19 |
Family
ID=6442133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92919461A Expired - Lifetime EP0606265B1 (en) | 1991-09-30 | 1992-09-11 | Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5523536A (en) |
| EP (1) | EP0606265B1 (en) |
| JP (1) | JP3274135B2 (en) |
| CA (1) | CA2120149A1 (en) |
| DE (2) | DE4133092A1 (en) |
| DK (1) | DK0606265T3 (en) |
| ES (1) | ES2075716T3 (en) |
| UA (1) | UA55364C2 (en) |
| WO (1) | WO1993007635A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005011405B3 (en) * | 2005-03-03 | 2006-11-16 | Siemens Ag | Switchgear with heat pipe |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2725303B1 (en) * | 1994-09-29 | 1996-10-31 | Schneider Electric Sa | MEDIUM VOLTAGE SWITCH OR CIRCUIT BREAKER |
| US5864109A (en) * | 1998-01-30 | 1999-01-26 | Lg Industrial Systems Co., Ltd. | Terminal connection locking apparatus for vacuum circuit breaker |
| US6753493B2 (en) * | 2001-06-01 | 2004-06-22 | Hubbell Incorporated | Electrical circuit interrupting device |
| JP4351988B2 (en) * | 2004-12-06 | 2009-10-28 | 三菱電機株式会社 | Switchgear and support insulator |
| JP4606146B2 (en) * | 2004-12-09 | 2011-01-05 | 三菱電機株式会社 | Switchgear |
| US7075027B1 (en) * | 2005-05-19 | 2006-07-11 | Eaton Corporation | Spring-charged mechanism assembly employing two trunnion members moveable in different planes and circuit interrupter employing the same |
| CN102623237A (en) * | 2012-04-19 | 2012-08-01 | 长沙智通电力设备有限公司 | Permanent magnet control mechanism for vacuum breaker |
| WO2014146678A1 (en) * | 2013-03-18 | 2014-09-25 | Abb Technology Ag | Magnetic actuating device for a current switching device |
| DE102013207436B4 (en) | 2013-04-24 | 2021-06-02 | Siemens Aktiengesellschaft | Drive for a switching device and a switching device with such a drive |
| CN105590802A (en) * | 2014-10-23 | 2016-05-18 | 苏州市吴中区欣鑫开关配件厂 | Connecting apparatus of high-voltage circuit breaker and making method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3663906A (en) * | 1969-10-09 | 1972-05-16 | Gen Electric | Electric circuit breaker with magnetically assisted closing means |
| US4180788A (en) * | 1978-07-03 | 1979-12-25 | General Electric Company | Vacuum circuit breaker with delayed trip operation |
| CH654138A5 (en) * | 1981-06-30 | 1986-01-31 | Sprecher & Schuh Ag | HIGH VOLTAGE CIRCUIT BREAKERS. |
| DE3214935C2 (en) * | 1982-04-19 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Drive device for electric switches |
| DE3300979A1 (en) * | 1983-01-12 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | VACUUM SWITCH WITH TWO SWITCHING TUBES PER POL |
| DE3330979A1 (en) * | 1983-08-27 | 1985-03-21 | Fa. Richard Hirschmann, 7300 Esslingen | Process for the parallel transmission of binary digital signals |
| DE3414016A1 (en) * | 1984-04-12 | 1985-10-17 | Siemens AG, 1000 Berlin und 8000 München | VACUUM SWITCHING DEVICE WITH A DRIVE DEVICE AND WITH A SPRING BASED ON THE MOVABLE CONNECTING PIN OF THE SWITCH TUBES |
| EP0172986B1 (en) * | 1984-08-31 | 1990-12-27 | Sprecher Energie AG | Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch |
| US4713503A (en) * | 1986-08-26 | 1987-12-15 | A. B. Chance Company | Three phase vacuum switch operating mechanism with anti-bounce device for interrupter contacts |
| JPH02281521A (en) * | 1989-03-16 | 1990-11-19 | Sprecher Energ Ag | Multipole vacuum breaker and insulating support frame for multipole vacuum breaker |
| DE3915522A1 (en) * | 1989-05-11 | 1990-11-15 | Siemens Ag | DRIVE DEVICE FOR A VACUUM SWITCH TUBE WITH A CONTACT SPRING |
| DE4006452A1 (en) * | 1990-03-01 | 1991-09-05 | Driescher Eltech Werk | Vacuum switch-gear mechanism for 12KV and 24KV operation - uses single interchangeable link to provide requisite motion and spring compression |
| JPH06215672A (en) * | 1993-01-20 | 1994-08-05 | Toshiba Corp | Vacuum circuit breaker |
-
1991
- 1991-09-30 DE DE4133092A patent/DE4133092A1/en not_active Withdrawn
-
1992
- 1992-06-11 US US08/211,364 patent/US5523536A/en not_active Expired - Fee Related
- 1992-09-11 ES ES92919461T patent/ES2075716T3/en not_active Expired - Lifetime
- 1992-09-11 DK DK92919461.1T patent/DK0606265T3/en active
- 1992-09-11 WO PCT/DE1992/000785 patent/WO1993007635A1/en active IP Right Grant
- 1992-09-11 CA CA002120149A patent/CA2120149A1/en not_active Abandoned
- 1992-09-11 JP JP50652493A patent/JP3274135B2/en not_active Expired - Fee Related
- 1992-09-11 EP EP92919461A patent/EP0606265B1/en not_active Expired - Lifetime
- 1992-09-11 DE DE59202981T patent/DE59202981D1/en not_active Expired - Fee Related
- 1992-11-09 UA UA94005368A patent/UA55364C2/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005011405B3 (en) * | 2005-03-03 | 2006-11-16 | Siemens Ag | Switchgear with heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3274135B2 (en) | 2002-04-15 |
| UA55364C2 (en) | 2003-04-15 |
| DK0606265T3 (en) | 1995-12-18 |
| ES2075716T3 (en) | 1995-10-01 |
| CA2120149A1 (en) | 1993-04-15 |
| DE4133092A1 (en) | 1993-04-01 |
| EP0606265A1 (en) | 1994-07-20 |
| DE59202981D1 (en) | 1995-08-24 |
| WO1993007635A1 (en) | 1993-04-15 |
| US5523536A (en) | 1996-06-04 |
| JPH06511107A (en) | 1994-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0115739B1 (en) | Vacuum switch with two switch tubes in series per pole | |
| EP0606265B1 (en) | Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube | |
| AT510917B1 (en) | CONTROL DEVICE | |
| EP0172986A2 (en) | Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch | |
| WO1993007634A1 (en) | Vacuum switch with a drive device and a pole operating unit | |
| EP0397294B1 (en) | Drive mechanism for a vacuum interrupter with a contact spring | |
| EP0159960B1 (en) | Vacuum switching apparatus with a driving device and a spring carrying the movable connector bolt of the switch tube | |
| EP1310970A1 (en) | Hybrid circuit breaker with drive | |
| WO1993020570A1 (en) | Multi-pole vacuum switch with an insulation assembly surrounding each switching tube | |
| EP0309382B1 (en) | Contact arrangement for a low-voltage circuit breaker with an electrodynamic opening | |
| DE2149437C3 (en) | Power operated vacuum switchgear | |
| DE3906786C2 (en) | ||
| DE19739702C1 (en) | LV circuit breaker with switch-shaft | |
| DE4416088C1 (en) | Lever linkage mechanism for transmission of drive force in electrical power switch | |
| EP0632928B1 (en) | Vacuum switch with a current-loop assembly | |
| EP0949643B1 (en) | Electrical switchgear, particularly electromagnetical switchgear with vacuum interrupter | |
| EP0637829B1 (en) | Tap changer for tapped transformer | |
| WO2002041347A1 (en) | Contact arrangement for current-limiting protective circuit breakers | |
| DE3002122A1 (en) | FLAME-RETARDANT POLYCARBONATE COMPOSITIONS | |
| DE3136771A1 (en) | SPRING DRIVE FOR THE MOVABLE SWITCHING PART OF AN ELECTRICAL EARTHING OR DISCONNECTING SWITCH | |
| WO1985000691A1 (en) | Drive for a vacuum switch | |
| EP0003352A1 (en) | Driving mechanism for switches | |
| DE2405149C2 (en) | Vacuum switching device with drive device and contact force spring | |
| DE19716956A1 (en) | Electric circuit-breaker with force limiting element | |
| CH652857A5 (en) | High-voltage switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19940323 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE DK ES FR GB IT LI NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19940922 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE DK ES FR GB IT LI NL SE |
|
| REF | Corresponds to: |
Ref document number: 59202981 Country of ref document: DE Date of ref document: 19950824 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2075716 Country of ref document: ES Kind code of ref document: T3 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19950905 |
|
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 19960919 Year of fee payment: 5 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970911 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20011207 Year of fee payment: 10 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020910 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20020911 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20020918 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20020926 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020930 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20020930 Year of fee payment: 11 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030911 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030912 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030912 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040401 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20030911 |
|
| EUG | Se: european patent has lapsed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040528 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20040401 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030912 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050911 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20081121 Year of fee payment: 17 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100401 |