EP2601662A1 - Drive for a switch disconnector with c o switching capacity - Google Patents

Drive for a switch disconnector with c o switching capacity

Info

Publication number
EP2601662A1
EP2601662A1 EP11741102.5A EP11741102A EP2601662A1 EP 2601662 A1 EP2601662 A1 EP 2601662A1 EP 11741102 A EP11741102 A EP 11741102A EP 2601662 A1 EP2601662 A1 EP 2601662A1
Authority
EP
European Patent Office
Prior art keywords
switching
adjusting
drive
compression spring
drive according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11741102.5A
Other languages
German (de)
French (fr)
Other versions
EP2601662B1 (en
Inventor
Franz-Josef Körber
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.)
ABB Technology AG
Original Assignee
ABB Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Technology AG filed Critical ABB Technology AG
Publication of EP2601662A1 publication Critical patent/EP2601662A1/en
Application granted granted Critical
Publication of EP2601662B1 publication Critical patent/EP2601662B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • 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
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • 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
    • 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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3052—Linear spring motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • 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
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut

Definitions

  • the invention relates to a drive for a circuit breaker with C and O-switching capacity with a switching pin serving as a switching contact and with an electric motor operated spindle drive with a spindle nut.
  • a circuit breaker is an electrical high voltage switch with low current switching capability for high voltage installations. Usually, it has a switching fault protection which prevents erroneous opening and closing under load. During a disconnection process under load, a circuit breaker would be destroyed due to the arc occurring.
  • C and O switching capability means that the switch thus designated, in the present case an isolating switch, provides a switching capacity to be specified within a C or O circuit. This switching capacity is determined by the switching speed.
  • circuit breakers or
  • Switch-disconnectors with high current switching capacity required which are usually combined with the circuit breaker in series. Accordingly, although disconnectors are operated according to their destination, although only with open circuit breakers, but by the control capacities on the switching paths of the circuit breakers so the capacity of the connected power supplies connected to these capacitive equalizing currents on or off.
  • disconnectors are designed for a minimum switching capacity, so when switching capacitive currents of the busbars, inductive currents of idle transformers and also at the busbar change the arcing contacts the pin contacts of the circuit breaker or at least not too quickly wear, especially by the alternating frequency tearing of the arc transien- te surges are generated, which favor the formation of arcs.
  • the switching time of a conventional motor drive for the circuit breaker is about 1 second, the switching speed is about 0.1 m / s. Due to the duration of the arc when switching capacitive currents of the busbars, inductive currents of idle transformers and also when busbar change (bus current transfer switching) it comes to wear of the arcing contacts of the separator pins. For these reasons, the switching of idle transformers can be done so far only with a fast circuit breaker (transformer panel).
  • a fast circuit breaker can avoid this disadvantage due to its very short arc times and is therefore suitable with proper design for the switching of idle transformers. He replaces a circuit breaker.
  • the actuating element is articulated to the compression spring, wherein according to a preferred embodiment of the invention, the compression spring is formed by a spring assembly which is mounted bistable.
  • the compression spring is fixedly mounted on the side opposite the articulation point of the actuating element.
  • an arrangement which causes by means of the compression spring own spring force pivotal movement of the actuating element about its fixed pivot point as soon as the actuator is acted upon by the spindle nut and removed from its current position by occupying the opposite of the two stable positions.
  • the adjusting device is formed by a setting disc or a control cylinder, whose or the peripheral surface is in engagement with a control shaft for actuating the switching pin, preferably by means of positive engagement.
  • Adjusting cylinder is provided with at least one acted upon by the actuating element, eccentrically arranged adjusting bolt is provided for the purpose of rotational actuation of the adjusting disk or the adjusting cylinder.
  • Double shift fork is formed, that is provided with two shift forks, wherein the spindle nut engages in a first shift fork and actuated accordingly depending on the movement of the associated spindle drive, and a second shift fork acts on at least one of the one end face of the adjusting disc or the adjusting cylinder eccentrically arranged adjusting bolt and thereby set the adjusting disk or the adjusting cylinder in rotation.
  • the drive according to the invention is characterized in that the compression spring has a spring force which ensures the C or O switching capability of the drive.
  • the construction according to the invention relates to a fast-running disconnector drive according to the spring principle.
  • the contact pin In the end positions (ON and OFF), the contact pin is held securely by the residual tension of the springs.
  • the switching action is initiated via the motor-driven spindle drive. While the release pin initially remains at rest, the spring is already stretched in the direction of unstable center position and the actuator applies to the shift shaft.
  • the angle of rotation of the acted upon by the shift fork actuator is about 80 ° to 100 °.
  • the conversion to larger angles of rotation of, for example, 286 ° or 306 ° can be realized by means of a Vorgeleges.
  • Fig. 1 is a schematic diagram of the drive according to the invention in
  • FIG. 2 is a schematic diagram of the drive according to the invention.
  • Stable first end position and a schematic of the drive according to the invention in s * .abiler second end position.
  • Fig. 1 is a schematic diagram of an embodiment of the drive 10 according to the invention is shown, which has an actuating element 12, a compression spring 14, an adjusting device 16 and a spindle drive 18 with spindle nut 20 located thereon.
  • the actuator 12 in turn has a subsequent to a flange 22 double fork 24 with a first and a second shift fork 26, 28, wherein the actuator 12 is arranged to a stationary in the flange 22
  • Pivot 30 is pivotable.
  • the double shift fork 24 facing away from the end of the flange portion 22 is pivotally connected in a common joint 32 with the compression spring 14.
  • the compression spring 14 is formed in the embodiment shown as a spring assembly and arranged in a cylindrical sleeve 34 which has the common pivot 32 at its end facing the actuator 12, while the opposite end of the sleeve 34 is pivotally mounted about a fixed pivot point 36.
  • shift forks 26, 28 are adjacent but not rectified, that is, their fork openings do not point in the same direction but their orientation is offset by 90 ° to each other.
  • the adjusting device 16 is formed by a circular cylinder 38 which is rotatably arranged about a central axis 40 which perpendicularly intersects the extension of the connecting line of the rotary joint 32 with the fixed pivot point 30 in the flange portion 22 on the adjusting device 16, that is perpendicularly emerges from the plane.
  • a shift pin 44 is mounted, which serves for alternate engagement with the first shift fork 26, which depends on the loading of the actuating element 2 on the one hand by the compression spring 14 and on the other hand by the spindle nut 20th moved from the one shown in Fig. 1 with respect to the compression spring 14 metastable center position in one of two stable end positions, whereby the adjusting device 16, that is, the circular cylinder is rotated accordingly.
  • Switching shaft 46 which operates in a manner not shown in detail the associated switching contact of the circuit breaker also not shown in detail.
  • FIG. 2 the embodiment shown in Fig. 1 and explained above of a drive according to the invention for a circuit breaker in the closed position of the switching contact, not shown in detail is shown.
  • the compression spring 14 is in this switching position in one of its two stable end positions, which was initiated by downward movement of the spindle nut 20.
  • Fig. 3 the embodiment shown in Fig. 1 and explained above of a drive according to the invention for a circuit breaker in the closed position of the switching contact, not shown in detail is reproduced.
  • the compression spring 14 is located in this switching position in one of its two stable end positions, which was initiated by upward movement of the spindle nut 20.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention relates to a drive for a switch disconnector with C or O switching capacity with a switching pin acting as switching contact, with a spindle drive driven by an electric motor and having a spindle nut, wherein an actuating element, which is loaded by a compression spring and is capable of pivoting about a fixed pivot point, is acted upon by the spindle nut, wherein the actuating element for its part interacts with an actuating apparatus which actuates the switching pin.

Description

Antrieb für einen Trennschalter mit C O-Schaltvermögen  Drive for a circuit breaker with C O switching capacity
Beschreibung description
Die Erfindung betrifft einen Antrieb für einen Trennschalter mit C und O-Schaltvermögen mit einem als Schaltkontakt dienenden Schaltstift und mit einem elektromotorisch betriebenen Spindeltrieb mit einer Spindelmutter. The invention relates to a drive for a circuit breaker with C and O-switching capacity with a switching pin serving as a switching contact and with an electric motor operated spindle drive with a spindle nut.
Ein Trennschalter ist ein elektrischer Hochspannungsschalter mit geringem Stromschaltvermögen für Hochspannungsanlagen. Üblicherweise weist er einen Schaltfehlerschutz auf, der ein irrtümliches Öffnen und Schließen unter Last verhindert. Bei einem Trennvorgang unter Last würde ein Trennschalter aufgrund des dabei auftretenden Lichtbogens zerstört werden. A circuit breaker is an electrical high voltage switch with low current switching capability for high voltage installations. Usually, it has a switching fault protection which prevents erroneous opening and closing under load. During a disconnection process under load, a circuit breaker would be destroyed due to the arc occurring.
C und O-Schaltvermögen bedeutet, dass der so bezeichnete Schalter, im vorliegenden Fall ein Trennschalter, innerhalb einer C- oder O-Schaltung ein zu spezifizierendes Schaltvermögen bereitstellt. Dieses Schaltvermögen wird von der Schaltgeschwindigkeit bestimmt. C and O switching capability means that the switch thus designated, in the present case an isolating switch, provides a switching capacity to be specified within a C or O circuit. This switching capacity is determined by the switching speed.
Nun zurück zum eigentlichen Trennschalter, der, wie bereits erläutert, ein als elektrischer Hochspannungsschalter mit eingeschränktem Stromschaltvermögen für Hochspannungsanlagen oder Hochspannungsschaltanlagen zum Einsatz kommt. Für die Trennung der elektrischen Verbindung unter Last sind Leistungsschalter oder  Now back to the actual circuit breaker, which, as already explained, is used as a high voltage electrical switch with limited current switching capacity for high voltage systems or high voltage switchgear. For the separation of the electrical connection under load are circuit breakers or
Lasttrennschalter mit hohem Stromschaltvermögen erforderlich, welche im Regelfall mit dem Trennschalter in Reihenschaltung kombiniert werden. Demgemäß werden Trennschalter entsprechend ihrer Bestimmung zwar ausschließlich bei geöffneten Leistungsschaltern betätigt, jedoch sind durch die Steuerkapazitäten über die Schaltstrecken der Leistungsschalter so die Kapazität der angeschlossenen Netzteile die mit diesen Kapazitäten verbundenen Ausgleichsströme ein- beziehungsweise auszuschalten. Switch-disconnectors with high current switching capacity required, which are usually combined with the circuit breaker in series. Accordingly, although disconnectors are operated according to their destination, although only with open circuit breakers, but by the control capacities on the switching paths of the circuit breakers so the capacity of the connected power supplies connected to these capacitive equalizing currents on or off.
Insoweit sind Trennschalter für ein Mindestschaltvermögen ausgelegt, damit beim Schalten von kapazitiven Strömen der Sammelschienen, induktiven Strömen von leer laufenden Transformatoren und auch beim Sammelschienenwechsel die Lichtbogenkontakte der Stiftkontakte des Trennschalters nicht oder zumindest nicht zu rasch verschleißen, zumal durch das wechselfrequente Abreißen des Lichtbogens transien- te Überspannungen erzeugt werden, welche das Zustandekommen von Lichtbögen begünstigen. In that regard, disconnectors are designed for a minimum switching capacity, so when switching capacitive currents of the busbars, inductive currents of idle transformers and also at the busbar change the arcing contacts the pin contacts of the circuit breaker or at least not too quickly wear, especially by the alternating frequency tearing of the arc transien- te surges are generated, which favor the formation of arcs.
Die Schaltzeit eines herkömmlichen Motorantriebes für den Trennschalter beträgt ca. 1 Sekunde, die Schaltgeschwindigkeit liegt bei ca. 0,1 m/s. Bedingt durch die Zeitdauer des Lichtbogens beim Schalten von kapazitiven Strömen der Sammelschienen, induktiven Strömen von leer laufenden Transformatoren und auch beim Sammelschienenwechsel (bus current transfer switching) kommt es zum Verschleiß der Lichtbogenkontakte der Trennerstifte. Aus diesen Gründen kann bislang speziell das Schalten von leer laufenden Transformatoren nur mit einem schnellen Leistungsschalter (Trafofeld) erfolgen. The switching time of a conventional motor drive for the circuit breaker is about 1 second, the switching speed is about 0.1 m / s. Due to the duration of the arc when switching capacitive currents of the busbars, inductive currents of idle transformers and also when busbar change (bus current transfer switching) it comes to wear of the arcing contacts of the separator pins. For these reasons, the switching of idle transformers can be done so far only with a fast circuit breaker (transformer panel).
Andererseits kann ein schneller Trennschalter infolge seiner sehr kurzen Lichtbogenzeiten diesen Nachteil vermeiden und ist somit bei richtiger Auslegung für das Schalten von leer laufenden Transformatoren geeignet. Er ersetzt somit einen Leistungsschalter. On the other hand, a fast circuit breaker can avoid this disadvantage due to its very short arc times and is therefore suitable with proper design for the switching of idle transformers. He replaces a circuit breaker.
Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, einen Trennschalter der eingangs genannten Art anzugeben, der hinsichtlich seines Schaltverhaltens im Sinne einer schnellen Schaltfähigkeit optimiert ist und auf einfache Weise und mit wenig Aufwand herstellbar ist. Based on this prior art, it is an object of the invention to provide a circuit breaker of the type mentioned above, which is optimized in terms of its switching behavior in terms of fast switching capability and can be produced in a simple manner and with little effort.
Diese Aufgabe wird gelöst durch die Merkmale des Anspruchs 1. Demgemäß ist vorgesehen, dass ein von einer Druckfeder belastetes und um einen ortsfesten Drehpunkt schwenkbares Stellelement vorgesehen ist, welches von der Spindelmutter be- aufschlagt ist, wobei das Stellelement seinerseits mit einer Stellvorrichtung zusammenarbeitet, welche den Schaltstift betätigt. This object is achieved by the features of claim 1. Accordingly, it is provided that a loaded by a compression spring and pivotable about a fixed pivot point adjusting element is provided, which by the spindle nut Be aufschlagt, wherein the actuating element in turn cooperates with an actuating device which actuates the switching pin.
Vorteilhafterweise ist beim erfindungsgemäßen Antrieb vorgesehen, dass das Stellelement mit der Druckfeder gelenkig verbunden ist, wobei entsprechend einer bevorzugten Ausführungsform der Erfindung die Druckfeder von einem Federpaket gebildet ist, das bistabil gelagert ist. Advantageously, it is provided in the drive according to the invention that the actuating element is articulated to the compression spring, wherein according to a preferred embodiment of the invention, the compression spring is formed by a spring assembly which is mounted bistable.
Gemäß einer vorteilhaften Ausgestaltung des erfindungsgemäßen Antriebs ist die Druckfeder an der dem Anlenkpunkt des Stellelements gegenüberliegenden Seite ortsfest gelagert. According to an advantageous embodiment of the drive according to the invention, the compression spring is fixedly mounted on the side opposite the articulation point of the actuating element.
Hierdurch ist eine Anordnung geschaffen, welche mit Hilfe der der Druckfeder eigenen Federkraft eine Schwenkbewegung des Stellelements um seinen ortsfesten Drehpunkt bewirkt, sobald das Stellelement von der Spindelmutter beaufschlagt und aus seiner aktuellen Lage entfernt wird, indem es die entgegengesetzte der beiden stabilen Positionen einnimmt. As a result, an arrangement is provided which causes by means of the compression spring own spring force pivotal movement of the actuating element about its fixed pivot point as soon as the actuator is acted upon by the spindle nut and removed from its current position by occupying the opposite of the two stable positions.
In zweckmäßiger Weitel bildung der Erfindung ist die Stellvorrichtung von einer Stellscheibe oder einem Stellzylinder gebildet, deren beziehungsweise dessen Umfangs- fläche sich mit einer Stellwelle zur Betätigung des Schaltstiftes im Eingriff befindet, vorzugsweise mittels formschlüssigen Eingriffs. In expedient Weitel formation of the invention, the adjusting device is formed by a setting disc or a control cylinder, whose or the peripheral surface is in engagement with a control shaft for actuating the switching pin, preferably by means of positive engagement.
Eine bevorzugte Ausführungsform des erfindungsgemäßen Antriebs ist dadurch gekennzeichnet, dass eine Stirnfläche der Stellscheibe beziehungsweise des A preferred embodiment of the drive according to the invention is characterized in that an end face of the adjusting disc or the
Stellzylinders mit wenigstens einem von dem Stellelement beaufschlagbaren, exzentrisch angeordneten Stellbolzen versehen ist zwecks Drehbetätigung der Stellscheibe beziehungsweise des Stellzylinders. Adjusting cylinder is provided with at least one acted upon by the actuating element, eccentrically arranged adjusting bolt is provided for the purpose of rotational actuation of the adjusting disk or the adjusting cylinder.
Hierzu beaufschlagt das Stellelement, welches in bevorzugter Weise als For this purpose acts on the actuator, which in a preferred manner as
Doppelschaltgabel ausgebildet ist, also mit zwei Schaltgabeln versehen ist, wobei die Spindelmutter in eine erste Schaltgabel eingreift und diese je nach Bewegung des zugeordneten Spindeltriebs entsprechend betätigt, und eine zweite Schaltgabel wenigstens einen der auf der einen Stirnfläche der Stellscheibe beziehungsweise des Stellzylinders exzentrisch angeordneten Stellbolzen beaufschlagt und hierdurch die Stellscheibe beziehungsweise den Stellzylinder in Drehung versetzt. Vorteilhafterweise ist der erfindungsgemäße Antrieb dadurch gekennzeichnet, dass die Druckfeder eine Federkraft aufweist, welche die C- oder O-Schaltfähigkeit des Antriebs gewährleistet. Double shift fork is formed, that is provided with two shift forks, wherein the spindle nut engages in a first shift fork and actuated accordingly depending on the movement of the associated spindle drive, and a second shift fork acts on at least one of the one end face of the adjusting disc or the adjusting cylinder eccentrically arranged adjusting bolt and thereby set the adjusting disk or the adjusting cylinder in rotation. Advantageously, the drive according to the invention is characterized in that the compression spring has a spring force which ensures the C or O switching capability of the drive.
Die erfindungsgemäße Konstruktion betrifft einen schnell laufenden Trennschalterantrieb nach dem Sprungfederprinzip. In den Endlagen (EIN und AUS) wird der Kontaktstift durch die Restspannung der Federn sicher gehalten. Die Schalthandlung wird über das motorisch angetriebene Spindelgetriebe eingeleitet. Während der Trennerstift zunächst in Ruhe bleibt, wird die Feder bereits in Richtung instabile Mittellage gespannt und das Stellelement legt sich an die Schaltwelle an. The construction according to the invention relates to a fast-running disconnector drive according to the spring principle. In the end positions (ON and OFF), the contact pin is held securely by the residual tension of the springs. The switching action is initiated via the motor-driven spindle drive. While the release pin initially remains at rest, the spring is already stretched in the direction of unstable center position and the actuator applies to the shift shaft.
Nachdem dieser Berührungskontakt hergestellt ist, entspannt sich die Feder aus der metastabilen Mittellage in die entsprechende stabile Endlage, in welcher der Trennschalter geöffnet ist. Der Drehwinkel der von der Schaltgabel beaufschlagten Stellvorrichtung beträgt ca. 80° bis 100°. Die Umsetzung auf größere Drehwinkel von zum Beispiel 286° beziehungsweise 306° kann mittels eines Vorgeleges realisiert werden. After this contact contact is made, the spring relaxes from the metastable central position in the corresponding stable end position in which the circuit breaker is opened. The angle of rotation of the acted upon by the shift fork actuator is about 80 ° to 100 °. The conversion to larger angles of rotation of, for example, 286 ° or 306 ° can be realized by means of a Vorgeleges.
Somit bestehen beste Voraussetzungen, den erfindungsgemäßen schnellen Trennschalterantrieb, insbesondere wegen der vorhandenen Drehdurchführung der Trennschalter, an bestehende Trennschalter anzukoppeln. Thus, there are best conditions to couple the inventive quick disconnect switch drive, in particular because of the existing rotary feedthrough of the circuit breaker to existing circuit breaker.
Diese und weitere vorteilhafte Merkmale sowie Vorteile und Verbesserungen sind Gegenstand der weiteren Ansprüche. These and other advantageous features and advantages and improvements are the subject of further claims.
Anhand eines in der beigefügten Zeichnung schematisch gezeigten With reference to a schematically shown in the accompanying drawing
Ausführungsbeispiels sollen die Erfindung, besondere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sowie besondere Vorteile der Erfindung näher erläutert und beschrieben werden. Embodiment of the invention, particular advantageous refinements and improvements of the invention and particular advantages of the invention will be explained and described in detail.
Es zeigen: Show it:
Fig. 1 eine Schemaskizze des erfindungsgemäßen Antriebes in Fig. 1 is a schematic diagram of the drive according to the invention in
metastabiler Mittellage, Fig. 2 eine Schemaskizze des erfindungsgemäßen Antriebes in metastable middle layer, Fig. 2 is a schematic diagram of the drive according to the invention in
stabiler erster Endlage und eine Schemaskizze des erfindungsgemäßen Antriebes in s*.abiler zweiter Endlage.  Stable first end position and a schematic of the drive according to the invention in s * .abiler second end position.
In Fig. 1 ist eine Schemaskizze eines Ausführungsbeispieles des erfindungsgemäßen Antriebs 10 gezeigt, der ein Stellelement 12, eine Druckfeder 14, eine Stellvorrichtung 16 und einen Spindeltrieb 18 mit daran befindlicher Spindelmutter 20 aufweist. In Fig. 1 is a schematic diagram of an embodiment of the drive 10 according to the invention is shown, which has an actuating element 12, a compression spring 14, an adjusting device 16 and a spindle drive 18 with spindle nut 20 located thereon.
Das Stellelement 12 weist seinerseits eine an ein Flanschteil 22 anschließende Doppelschaltgabel 24 mit einer ersten und einer zweiten Schaltgabel 26, 28 auf, wobei das Stellelement 12 um einen ortsfest im Flanschteil 22 angeordneten The actuator 12 in turn has a subsequent to a flange 22 double fork 24 with a first and a second shift fork 26, 28, wherein the actuator 12 is arranged to a stationary in the flange 22
Drehpunkt 30 schwenkbar ist. Pivot 30 is pivotable.
Ferner ist das der Doppelschaltgabel 24 abgewandte Ende des Flanschteiles 22 in einem gemeinsamen Gelenk 32 mit der Druckfeder 14 gelenkig verbunden. Die Druckfeder 14 ist im gezeigten Ausführungsbeispiel als Federpaket ausgebildet und in einer zylindrischen Hülse 34 angeordnet, welche an ihrem dem Stellelement 12 zugewandten Ende das gemeinsame Drehgelenk 32 aufweist, während das entgegengesetzte Ende der Hülse 34 um einen ortsfesten Drehpunkt 36 schwenkbar gelagert ist. Further, the double shift fork 24 facing away from the end of the flange portion 22 is pivotally connected in a common joint 32 with the compression spring 14. The compression spring 14 is formed in the embodiment shown as a spring assembly and arranged in a cylindrical sleeve 34 which has the common pivot 32 at its end facing the actuator 12, while the opposite end of the sleeve 34 is pivotally mounted about a fixed pivot point 36.
Die in der Doppelschaltgabel 24 des Stellelements 12 vereinigten Schaltgabeln 26, 28 sind benachbart aber nicht gleichgerichtet, das heißt, ihre Gabelöffnungen weisen nicht in die gleiche Richtung sondern ihre Ausrichtung ist um 90° zueinander versetzt. The combined in the double shift fork 24 of the actuating element 12 shift forks 26, 28 are adjacent but not rectified, that is, their fork openings do not point in the same direction but their orientation is offset by 90 ° to each other.
Während die Gabelöffnung 27 der ersten Schaltgabel 26 in Richtung der Verlängerung der Verbindungslinie des Drehgelenks 32 mit dem ortsfesten Drehpunkt 30 im Flanschteil 22 auf die Stellvorrichtung 16 weist, ist die Gabelöffnung 29 der zweiten Schaltgabel 28 senkrecht oder in einem anderen Winkel hierzu in Richtung auf den bereits erwähnten Spindeltrieb 18 mit der Spindelmutter 20 angeordnet. Die Stellvorrichtung 16 ist von einem Kreiszylinder 38 gebildet, der um eine Mittelachse 40 drehbar abgeordnet ist, welche die Verlängerung der Verbindungslinie des Drehgelenks 32 mit dem ortsfesten Drehpunkt 30 im Flanschteil 22 auf die Stellvorrichtung 16 senkrecht schneidet, das heißt senkrecht aus der Zeichenebene heraustritt. While the fork opening 27 of the first shift fork 26 in the direction of extension of the connecting line of the rotary joint 32 with the fixed pivot point 30 in the flange 22 on the actuator 16, the fork opening 29 of the second shift fork 28 is perpendicular or at another angle thereto in the direction of the Already mentioned spindle drive 18 is arranged with the spindle nut 20. The adjusting device 16 is formed by a circular cylinder 38 which is rotatably arranged about a central axis 40 which perpendicularly intersects the extension of the connecting line of the rotary joint 32 with the fixed pivot point 30 in the flange portion 22 on the adjusting device 16, that is perpendicularly emerges from the plane.
An seiner parallel zur Zeichenebene verlaufenden, dem Stellelement 12 benachbarten Stirnfläche 42 ist ein Schaltbolzen 44 angebracht, der zum wechselweisen Eingriff mit der ersten Schaltgabel 26 dient, welche ihn abhängig von der Beaufschlagung des Stellelements 2 einerseits durch die Druckfeder 14 und andererseits durch die Spindelmutter 20 aus der in Fig. 1 gezeigten in Bezug auf die Druckfeder 14 metastabilen Mittellage jeweils in eine von zwei stabilen Endlagen bewegt, wodurch die Stellvorrichtung 16, das heißt der Kreiszylinder entsprechend verdreht wird. At its parallel to the plane extending, the adjusting element 12 adjacent end face 42 a shift pin 44 is mounted, which serves for alternate engagement with the first shift fork 26, which depends on the loading of the actuating element 2 on the one hand by the compression spring 14 and on the other hand by the spindle nut 20th moved from the one shown in Fig. 1 with respect to the compression spring 14 metastable center position in one of two stable end positions, whereby the adjusting device 16, that is, the circular cylinder is rotated accordingly.
Mit der Stellvorrichtung 16 im Eingriff ist eine hierzu achsparallel angeordnete With the adjusting device 16 in engagement is arranged axially parallel thereto
Schaltwelle 46, welche in nicht näher gezeigter Weise den zugeordneten Schaltkontakt des ebenfalls nicht näher gezeigten Trennschalters betätigt. Switching shaft 46, which operates in a manner not shown in detail the associated switching contact of the circuit breaker also not shown in detail.
In Fig. 2 ist das in Fig. 1 gezeigte und vorstehend erläuterte Ausführungsbeispiel eines erfindungsgemäßen Antriebs für einen Trennschalter in Schließstellung des nicht näher gezeigten Schaltkontaktes wiedergegeben. Die Druckfeder 14 befindet sich in dieser Schaltstellung in einer ihrer beiden stabilen Endlagen, welche durch Abwärtsbewegung der Spindelmutter 20 eingeleitet wurde. In Fig. 2 the embodiment shown in Fig. 1 and explained above of a drive according to the invention for a circuit breaker in the closed position of the switching contact, not shown in detail is shown. The compression spring 14 is in this switching position in one of its two stable end positions, which was initiated by downward movement of the spindle nut 20.
Ferner ist gut zu erkennen, dass das zwischen dem Stellelement 12 sowie der Druckfeder 14 befindliche Drehgelenk 32 sich in dieser Stellung aus der durch die Verbindungslinie des Drehpunktes 30 im Stellelement 12 mit dem Schwenkpunkt 36 der Druckfeder 14 gebildeten Geraden seitlich, das heißt nach links, entfernt hat, wodurch die erste Schaltgabel 26 den Schaltbolzen 44 der Stellvorrichtung 16 nach rechts beaufschlagt. Hierdurch wird wiederum die Schaltwelle 46 in entgegengesetzter Drehrichtung verdreht. Furthermore, it can be clearly seen that the pivot joint 32 located between the adjusting element 12 and the compression spring 14 is in this position from the line formed by the connecting line of the pivot point 30 in the adjusting element 12 with the pivot point 36 of the compression spring 14 laterally, that is to the left, has removed, whereby the first shift fork 26, the shift pin 44 of the adjusting device 16 applied to the right. As a result, in turn, the shift shaft 46 is rotated in the opposite direction of rotation.
In Fig. 3 ist das in Fig. 1 gezeigte und vorstehend erläuterte Ausführungsbeispiel eines erfindungsgemäßen Antriebs für einen Trennschalter in Schließstellung des nicht näher gezeigten Schaltkontaktes wiedergegeben. Die Druckfeder 14 befindet sich in dieser Schaltstellung in einer ihrer beiden stabilen Endlagen, welche durch Aufwärtsbewegung der Spindelmutter 20 eingeleitet wurde. In Fig. 3 the embodiment shown in Fig. 1 and explained above of a drive according to the invention for a circuit breaker in the closed position of the switching contact, not shown in detail is reproduced. The compression spring 14 is located in this switching position in one of its two stable end positions, which was initiated by upward movement of the spindle nut 20.
Ferner ist gut zu erkennen, dass das zwischen dem Stellelement 12 sowie der Druckfeder 14 befindliche Drehgelenk 32 sich in dieser Stellung aus der durch die Verbindungslinie des Drehpunktes 30 im Stellelement 12 mit dem Schwenkpunkt 36 der Druckfeder 14 gebildeten Geraden seitlich, das heißt nach rechts, entfernt hat, wodurch die erste Schaltgabel 26 den Schaltbolzen 44 der Stellvorrichtung 16 nach links beaufschlagt. Hierdurch wird wiederum die Schaltwelle 46 in entgegengesetzter Drehrichtung verdreht. Furthermore, it can be clearly seen that the pivot located between the actuator 12 and the compression spring 14 32 in this position from the line formed by the line connecting the pivot point 30 in the actuator 12 with the pivot point 36 of the compression spring 14 side, that is to the right, has removed, whereby the first shift fork 26, the shift pin 44 of the adjusting device 16 applied to the left. As a result, in turn, the shift shaft 46 is rotated in the opposite direction of rotation.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Antrieb drive
Stellelement actuator
Druckfeder compression spring
Stellvorrichtung locking device
Spindeltrieb spindle drive
Spindelmutter spindle nut
Flanschteil flange
Doppelschaltgabel Double shift fork
erste Schaltgabel first shift fork
erste Gabelöffnung first fork opening
zweite Schaltgabel second shift fork
zweite Gabelöffnung second fork opening
Drehpunkt pivot point
Drehgelenk swivel
Hülse shell
Schwenkpunkt pivot point
Kreiszylinder circular cylinder
Mittelachse central axis
Stirnfläche face
Schaltbolzen switching pin
Schaltwelle shift shaft

Claims

Patentansprüche  claims
Antrieb für einen Trennschalter mit C- und O-Schaltvermögen mit einem als Schaltkontakt dienenden Schaltstift, mit einem elektromotorisch betriebenen Spindeltrieb (18) mit einer Spindelmutter (20), Drive for a circuit breaker with C and O switching capacity with a switching pin serving as a switching contact, with an electric motor operated spindle drive (18) with a spindle nut (20),
gekennzeichnet durch  marked by
ein von einer Druckfeder (14) belastetes und um einen ortsfesten Drehpunkt schwenkbares Stellelement (12), das von der Spindelmutter (20) beaufschlagt ist, wobei das Stellelement (12) seinerseits mit einer Stellvorrichtung (16) zusammenarbeitet, welche den Schaltstift betätigt.  one of a compression spring (14) loaded and pivotable about a fixed pivot point adjusting element (12) which is acted upon by the spindle nut (20), wherein the actuating element (12) in turn cooperates with an adjusting device (16) which actuates the switching pin.
Antrieb nach Anspruch 1 , dadurch gekennzeichnet, dass das Stellelement (12) mit der Druckfeder (14) gelenkig verbunden ist. Drive according to claim 1, characterized in that the adjusting element (12) is articulated to the compression spring (14).
Antrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Druckfeder (14) von einem Federpaket gebildet ist, das bistabil gelagert ist. Drive according to claim 1 or 2, characterized in that the compression spring (14) is formed by a spring assembly which is mounted bistable.
Antrieb nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Druckfeder (14) an der dem Anlenkpunkt des Stellelements (12) gegenüberliegenden Seite ortsfest gelagert ist. Drive according to claim 2 or 3, characterized in that the compression spring (14) at the articulation point of the adjusting element (12) opposite side is mounted stationary.
Antrieb nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Stellvorrichtung (16) von einer Stellscheibe oder von einem Stellzylinder gebildet ist, deren Jmfangsfläche mit einer Stellwelle zur Betätigung des Schaltstiftes im Eingriff ist. Drive according to one of the preceding claims, characterized in that the adjusting device (16) is formed by a setting disc or by an actuating cylinder whose Jmfangsfläche with an actuating shaft for actuating the switching pin is engaged.
Antrieb nach Anspruch 5, dadurch gekennzeichnet, dass eine Stirnfläche der Stellscheibe beziehungsweise des Stellzylinders mit wenigstens einem von dem Stellelement (12) beaufschlagbaren, exzentrisch angeordneten Stellbolzen versehen ist zwecks Drehbetätigung des Stellzylinders. Antrieb nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Stellelement (12) als Doppelschaltgabel (24) ausgebildet ist, in welche einerseits die Spindelmutter (20) eingreift und welche andererseits die Stellscheibe beziehungsweise den Stellzylinder beaufschlagt. Drive according to claim 5, characterized in that an end face of the adjusting disc or the adjusting cylinder is provided with at least one of the adjusting element (12) acted upon, eccentrically arranged adjusting bolt for the purpose of rotational actuation of the actuating cylinder. Drive according to one of the preceding claims, characterized in that the adjusting element (12) as a double shift fork (24) is formed, in which on the one hand, the spindle nut (20) engages and which on the other hand, the adjusting disc or the actuating cylinder acted upon.
Antrieb nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Druckfeder (14) eine Federkraft aufweist, welche die C-und O- Schaltfähigkeit des Antriebs gewährleistet. Drive according to one of the preceding claims, characterized in that the compression spring (14) has a spring force which ensures the C and O switching capability of the drive.
EP11741102.5A 2010-08-02 2011-07-06 Drive for a switch disconnector with c o switching capacity Active EP2601662B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010033042A DE102010033042A1 (en) 2010-08-02 2010-08-02 Drive for a circuit breaker with C O switching capacity
PCT/EP2011/003356 WO2012016618A1 (en) 2010-08-02 2011-07-06 Drive for a switch disconnector with c o switching capacity

Publications (2)

Publication Number Publication Date
EP2601662A1 true EP2601662A1 (en) 2013-06-12
EP2601662B1 EP2601662B1 (en) 2015-10-07

Family

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EP11741102.5A Active EP2601662B1 (en) 2010-08-02 2011-07-06 Drive for a switch disconnector with c o switching capacity

Country Status (7)

Country Link
US (1) US8890640B2 (en)
EP (1) EP2601662B1 (en)
KR (1) KR20130094779A (en)
CN (1) CN103026439B (en)
DE (1) DE102010033042A1 (en)
HU (1) HUE028249T2 (en)
WO (1) WO2012016618A1 (en)

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CN108711531B (en) * 2018-07-09 2023-12-29 江苏双汇电力发展股份有限公司 High-voltage switch

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Also Published As

Publication number Publication date
DE102010033042A1 (en) 2012-02-02
KR20130094779A (en) 2013-08-26
EP2601662B1 (en) 2015-10-07
CN103026439A (en) 2013-04-03
HUE028249T2 (en) 2016-12-28
US20130135066A1 (en) 2013-05-30
CN103026439B (en) 2016-01-20
US8890640B2 (en) 2014-11-18
WO2012016618A1 (en) 2012-02-09

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