EP1687834A1 - Spindle drive for a circuit breaker and/or earthing switch - Google Patents

Spindle drive for a circuit breaker and/or earthing switch

Info

Publication number
EP1687834A1
EP1687834A1 EP04818788A EP04818788A EP1687834A1 EP 1687834 A1 EP1687834 A1 EP 1687834A1 EP 04818788 A EP04818788 A EP 04818788A EP 04818788 A EP04818788 A EP 04818788A EP 1687834 A1 EP1687834 A1 EP 1687834A1
Authority
EP
European Patent Office
Prior art keywords
spindle
housing
spindle drive
drive according
switching chamber
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
EP04818788A
Other languages
German (de)
French (fr)
Other versions
EP1687834B1 (en
Inventor
Wolfgang Waldi
Kuno Hug
Thomas Betz
Volker Thomas
Heinrich Neumaier
Peter Klonecki
Christian Ries
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 EP1687834A1 publication Critical patent/EP1687834A1/en
Application granted granted Critical
Publication of EP1687834B1 publication Critical patent/EP1687834B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • 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
    • H01H3/264—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a travelling nut mechanism
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • 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
    • 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
    • H01H31/003—Earthing switches

Definitions

  • the invention relates to a spindle drive for a disconnector and / or earthing switch according to the preamble of claim 1.
  • the invention can be used, for example, in the case of combined high-voltage isolating and earthing switches.
  • a drive device for an electrical isolating switch which has a rotatably mounted spindle which is coupled in terms of drive to the movable switching element of the isolating switch, so that the movable switching element is actuated when the spindle is rotated.
  • a gearwheel is attached to the spindle, which meshes with a toothed drive coupled to an electromotive drive for its rotation and thus for actuating the movable contact piece.
  • the spindle can also be turned with a hand crank.
  • the gearwheel can be displaced between two positions on the spindle by the hand crank, whereby it meshes with the toothed drive in the first position and is free of the toothed drive in the second position .
  • Controllable locking elements are provided between the hand crank and the spindle.
  • DE 41 42 548 C2 discloses a drive for a disconnector with a drive shaft that can be driven by a motor or by hand and acts on the switch, a worm gear designed to transmit force from the motor to the drive shaft being provided.
  • a drive for the movable contact piece of an isolating earthing switch is known, the contact piece drive shaft being coupled to a drive disk provided with two radial slots forming a V-shape is.
  • Two parallel and linearly displaceable drive elements are provided which each engage in one of the slots and pivot the drive disk from the central position into the first and second positions.
  • the drive elements can be formed by roller drivers screwed onto threaded spindles each driven by a motor, with a bolt projection which engages in the associated slot.
  • the invention has for its object to provide a spindle drive for an isolating and / or earthing switch in an optimized design.
  • the advantages that can be achieved with the invention are, in particular, that in the proposed spindle drive no deflection with respect to the direction of movement is required, but rather a linear adaptation takes place. No gearbox is required, which results in high efficiency.
  • the movement is transmitted 1: 1.
  • the parts to be moved can be easily stored.
  • a single motor is sufficient for the multi-pole (multi-phase), for example three-pole movement of the switching device.
  • the motor can be positioned very precisely with little force via the spindle.
  • the set positions "contact”, “grounding”, “middle position” can be kept very simple.
  • FIG. 1 is a side view of a switch chamber housing with spindle drive
  • Fig. 2 shows a side section through the spindle drive.
  • FIG. 1 a side view of a switch chamber housing with spindle drive is shown.
  • a switching chamber housing 1 of a gas-insulated switchgear can be seen, in the interior of which several busbars 2 run, a three-pole (three-phase), combined disconnector and earthing switch 20 being provided as the switching device.
  • This combined disconnector and earthing switch 20 has a central contact carrier 5 per pole (phase), which is in each case electrically connected to a branch 21.
  • the isolating and earthing switch 20 also has: • an earthing switch contact 4 per pole, which is connected to the housing wall of the switching chamber housing 1, which is at ground potential, • an isolating switch contact 18 per pole, which is connected to a busbar 2.
  • the disconnector and earthing switch 20 alternatively enables salad an electrical connection busbars 2 - isolating switch contacts 18 - contact pins 16 - contact carrier 5 - branch 21 (position "contact”), • an electrical connection branch 21 - contact carrier 5 - contact pins 16 - earthing switch contacts 4 - earth potential of the housing wall of the switching chamber housing 1 (position "earthing "), • • • a separation between branch 21 and busbars 2 and between branch 21 and earth potential of the housing wall of the switching chamber housing 1 when the contact pins 16 are in the middle position within the contact carrier 5 (position" middle position ").
  • the contact pins 16 are connected via an insulation rod 15 per pole (phase) and a connecting yoke 13 common to all poles (phases) to a spindle 10, as a result of which the linear displacement desired for carrying out switching operations is achieved the contact pins 16 relative to the fixed earthing switch contacts 4 and circuit breaker contacts 18.
  • the spindle 10 (translatory spindle movement) is driven by rotating a spindle nut 11 which is rotatably mounted in a spindle nut housing 6 via a bearing 7.
  • the spindle nut 11 can be rotated, for example, using a motor and a V-belt or by using at least one gear wheel (in which case the spindle nut 11 is provided with an external ring gear).
  • a single motor is advantageously sufficient to carry out the three-pole (three-phase) movement of the contact pins 16 of the disconnector and earthing switch.
  • a manual drive of the disconnecting and earthing switch 20 acting on the spindle 10 is also provided.
  • busbars 2 and the branch 21 from the switching chamber housing 1 are carried out in a generally known manner using several suitable insulating flanges 3.
  • FIG. 2 shows a side section through the spindle drive.
  • a section of a switching chamber housing 1 with the three-pole (three-phase), combined disconnector and earthing switch 20 can be seen.
  • Three contact carriers 5 are used for guiding the contact pins 16 and for optionally contacting these contact pins 16 with isolating switch contacts 18 or earthing switch contacts 4.
  • the electrical contacting itself is expediently carried out in each case via spiral spring contacts (contact rings) 19 which enclose the contact pins 16 resiliently and closely in the case of contact.
  • the contact pins 16 are connected via three separate insulation rods 15 to a common connecting yoke 13, on which the spindle 10 and on each side of the spindle a guide pin 22 are mounted, both the spindle 10 and the two guide pins 22 the housing wall of the switching chamber housing 1 break through.
  • the translationally movable spindle is driven using the rotatable spindle nut 11, which is rotatably mounted in the spindle nut housing 6 using a bearing 7.
  • the two guide bolts 22 slide in linear guides 12, which are firmly connected to the housing wall of the switching chamber housing 1.
  • Gas-tight, cap-shaped covers 14 engage on the outside of the housing wall of the switching chamber housing 1 via the guide bolts 22 and the spindle 10. There is insulating gas 17 in the interior of these covers 14, as well as in the interior of the switching chamber housing 1.
  • the linear guides 12 result in a very precise Immersion of the contact pins 16 in the spiral spring contacts 19.
  • a sealed position indicator 8 for displaying the current position of the disconnector and earthing switch 20 is expediently carried out with the aid of the guide bolts 22 which move translationally within the covers 14.
  • the spindle and the associated drive components are located in the gas space of the switch chamber housing.
  • the geometric design of the spindle drive also makes it possible to lead the individual phases out of the switching chamber housing 1 in an isolated manner. This is expediently carried out via the insulation rods 15, which are guided through sealed openings through the wall of the switching chamber housing 1, with the connection yoke 13, spindle 10, spindle nut 11, spindle nut housing 6, bearing 7, guide pin 22, linear guide 12 and position indicator 8 outside in this alternative embodiment of the interrupter housing 1 are arranged.
  • the drive is not limited to a certain number of phases, i. H. the drive is universally suitable for switching devices with two, three, four etc. poles (phases).
  • a single drive + a single control serves to actuate several phases (poles).
  • a single control serves to actuate several phases (poles).
  • a separate spindle with separate drive is provided for each phase (pole), whereby a separate control is used for the actuation of each phase (of each pole).
  • Single-pole short interruptions can be implemented with this embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The invention relates to a spindle drive for a circuit breaker and/or earthing switch. According to the invention, a rotatable spindle nut (11), which is mounted in a spindle housing (6), displaces a spindle (10) in a translatory manner, thus displacing contact elements of the switching device. The invention is characterised in that the spindle (10) actuates a contact pin (16) that is configured in a contact carrier (5) by means of a connection yoke (13) that is common to all phases or poles and an isolating bar (15) for each phase or pole.

Description

Spindelantrieb für einen Trenn- und/oder Erdun sschalter Spindle drive for a disconnector and / or earth switch
Beschreibungdescription
Die Erfindung bezieht sich auf einen Spindelantrieb für einen Trenn- und/oder Erdungsschalter gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung kann beispielsweise bei kombinierten Hochspannungs-Trenn- und Erd ungeschältem verwendet werden.The invention relates to a spindle drive for a disconnector and / or earthing switch according to the preamble of claim 1. The invention can be used, for example, in the case of combined high-voltage isolating and earthing switches.
Aus der DE 36 08 481 A1 ist eine Antriebsvorrichtung für einen elektrischen Trennschalter bekannt, welche eine drehbar gelagerte Spindel besitzt, die mit dem beweglichen Schaltstück des Trennschalters antriebsmäßig gekuppelt ist, so dass das bewegliche Schaltstück bei Verdrehen der Spindel betätigt wird. An der Spindel ist ein Zahnrad angebracht, das mit einem mit einem elektromotorischen Antrieb gekoppelten Zahnantrieb zu ihrer Verdrehung und damit zur Betätigung des beweglichen Schaltstückes kämmt. Die Spindel ist zusätzlich auch mit einer Handkurbel verdrehbar. Zur Vereinfachung dieses Handbetriebs und zur Sicherstellung der Kopplung des Zahnrades mit dem Zahnantrieb bei gezogener Handkurbel ist das Zahnrad zwischen zwei Stellungen auf der Spindel von der Handkurbel verschiebbar, wobei es in der ersten Stellung mit dem Zahnantrieb kämmt und in der zweiten Stellung vom Zahnantrieb frei ist. Zwischen der Handkurbel und der Spindel sind steuerbare Verriegelungselemente vorgesehen.From DE 36 08 481 A1 a drive device for an electrical isolating switch is known which has a rotatably mounted spindle which is coupled in terms of drive to the movable switching element of the isolating switch, so that the movable switching element is actuated when the spindle is rotated. A gearwheel is attached to the spindle, which meshes with a toothed drive coupled to an electromotive drive for its rotation and thus for actuating the movable contact piece. The spindle can also be turned with a hand crank. To simplify this manual operation and to ensure the coupling of the gearwheel with the toothed drive when the crank handle is pulled, the gearwheel can be displaced between two positions on the spindle by the hand crank, whereby it meshes with the toothed drive in the first position and is free of the toothed drive in the second position , Controllable locking elements are provided between the hand crank and the spindle.
Aus der DE 41 42 548 C2 ist ein Antrieb für einen Trennschalter mit einer von einem Motor oder von Hand antreibbaren und auf den Schalter wirkenden Antriebswelle bekannt, wobei ein als Schneckengetriebe ausgebildetes, Kraft vom Motor auf die Antriebswelle übertragendes Zahnradgetriebe vorgesehen ist. -DE 41 42 548 C2 discloses a drive for a disconnector with a drive shaft that can be driven by a motor or by hand and acts on the switch, a worm gear designed to transmit force from the motor to the drive shaft being provided. -
Aus der DE 195 34 392 AS1 ist ein Antrieb für das bewegliche Kontaktstück eines Trenn-Erdungsschalters bekannt, wobei die Kontaktstück-Antriebswelle mit einer mit zwei eine V-Form bildenden radialen Schlitzen versehenen Antriebsscheibe gekuppelt ist. Es sind zwei parallel zueinander und linear verschiebbare Antriebselemente vorgesehen, die jeweils in einen der Schlitze eingreifen und die Antriebsscheibe aus mittiger Stellung in die erste und zweite Stellung verschwenken. Die Antriebselemente können durch auf von je einem Motor angetriebenen Gewindespindeln geschraubte Rollenmitnehmer mit einem Bolzenvorsprung gebildet sein, welcher jeweils in den zugehörigen Schlitz eingreift.From DE 195 34 392 AS1 a drive for the movable contact piece of an isolating earthing switch is known, the contact piece drive shaft being coupled to a drive disk provided with two radial slots forming a V-shape is. Two parallel and linearly displaceable drive elements are provided which each engage in one of the slots and pivot the drive disk from the central position into the first and second positions. The drive elements can be formed by roller drivers screwed onto threaded spindles each driven by a motor, with a bolt projection which engages in the associated slot.
Aus der DE 38 02 394 A1 ist ein" kombinierter Trenn- und Erdungsschalter für Hochspannung bekannt, wobei eine Antriebsvorrichtung mit einer Gewindespindel, einer Wandermutter und einem Motor eine in Längsrichtung verschiebbare Schaltstange aufwärts und abwärts bewegt.From DE 38 02 394 A1 a " combined disconnector and earthing switch for high voltage is known, wherein a drive device with a threaded spindle, a traveling nut and a motor moves a shift rod which can be displaced in the longitudinal direction upwards and downwards.
Der Erfindung liegt die Aufgabe zugrunde, einen Spindelantrieb für einen Trenn- und/oder Erdungsschalter in optimierter Ausführung anzugeben.The invention has for its object to provide a spindle drive for an isolating and / or earthing switch in an optimized design.
Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved in connection with the features of the preamble according to the invention by the features specified in the characterizing part of claim 1.
Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass beim vorgeschlagenen Spindelantrieb keine Umlenkung hinsichtlich der Bewegungsrichtung erforderlich ist, sondern eine lineare Adaption erfolgt. Es ist kein Getriebe erforderlich, wodurch sich ein hoher Wirkungsgrad ergibt. Die Bewegung wird 1 :1 übertragen. Es ist eine einfache Lagerung der zu bewegenden Teile möglich. Ein einziger Motor genügt für die mehrpolige (mehrphasige), beispielsweise dreipolige Bewegung des Schaltgerätes. Der Motor kann mit kleiner Kraft über die Spindel sehr genau positionieren. Die eingestellten Positionen „Kontakt", „Erdung", „Mittelstellung" können sehr einfach gehalten werden.The advantages that can be achieved with the invention are, in particular, that in the proposed spindle drive no deflection with respect to the direction of movement is required, but rather a linear adaptation takes place. No gearbox is required, which results in high efficiency. The movement is transmitted 1: 1. The parts to be moved can be easily stored. A single motor is sufficient for the multi-pole (multi-phase), for example three-pole movement of the switching device. The motor can be positioned very precisely with little force via the spindle. The set positions "contact", "grounding", "middle position" can be kept very simple.
Weitere Vorteile sind aus der nachstehenden Beschreibung ersichtlich.Further advantages are evident from the description below.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. Es zeigen:Advantageous embodiments of the invention are characterized in the subclaims. The invention is explained below with reference to the embodiments shown in the drawing. Show it:
Fig. 1 eine Seitenansicht eines Schaltkammergehäuses mit Spindelantrieb,1 is a side view of a switch chamber housing with spindle drive,
Fig. 2 einen seitlichen Schnitt durch den Spindelantrieb.Fig. 2 shows a side section through the spindle drive.
In Fig. 1 ist eine Seitenansicht eines Schaltkammergehäuses mit Spindelantrieb dargestellt. Es ist ein Schaltkammergehäuse 1 einer gasisolierten Schaltanlage zu erkennen, in dessen Innenraum mehrere Sammenschienen 2 verlaufen, wobei als Schaltgerät ein dreipoliger (dreiphasiger), kombinierter Trenn- und Erdungsschalter 20 vorgesehen ist. Dieser kombinierte Trenn- und Erdungsschalter 20 weist einen zentralen Kontaktträger 5 je Pol (Phase) auf, welcher jeweils elektrisch mit einem Abzweig 21 verbunden ist. Der Trenn- und Erdungsschalter 20 weist ferner auf: • einen Erdungsschalterkontakt 4 je Pol, welcher mit der auf Erdpotential liegenden Gehäusewandung des Schaltkammergehäuses 1 verbunden ist, • einen Trennerschalterkontakt 18 je Pol, welcher mit einer Sammelschiene 2 verbunden ist.In Fig. 1 a side view of a switch chamber housing with spindle drive is shown. A switching chamber housing 1 of a gas-insulated switchgear can be seen, in the interior of which several busbars 2 run, a three-pole (three-phase), combined disconnector and earthing switch 20 being provided as the switching device. This combined disconnector and earthing switch 20 has a central contact carrier 5 per pole (phase), which is in each case electrically connected to a branch 21. The isolating and earthing switch 20 also has: • an earthing switch contact 4 per pole, which is connected to the housing wall of the switching chamber housing 1, which is at ground potential, • an isolating switch contact 18 per pole, which is connected to a busbar 2.
Mit Hilfe von innerhalb der Kontaktträger 5 linear beweglicher Kontaktstifte 16 ermöglicht der Trenn- und Erdungsschalter 20 alternativ ». eine elektrische Verbindung Sammelschienen 2 - Trennerschalterkontakte 18 - Kontaktstifte 16 - Kontaktträger 5 - Abzweig 21 (Position „Kontakt"), • eine elektrische Verbindung Abzweig 21 - Kontaktträger 5 - Kontaktstifte 16 - Erdungsschalterkontakte 4 - Erdpotential der Gehäusewandung des Schaltkammergehäuses 1 (Position „Erdung"), • • eine Trennung zwischen Abzweig 21 und Sammelschienen 2 und sowie zwischen Abzweig 21 und Erdpotential der Gehäusewandung des Schaltkammergehäuses 1 bei Mittelstellung der Kontaktstifte 16 innerhalb der Kontaktträger 5 (Position „Mittelstellung").With the help of contact pins 16 which are linearly movable within the contact carriers 5, the disconnector and earthing switch 20 alternatively enables ». an electrical connection busbars 2 - isolating switch contacts 18 - contact pins 16 - contact carrier 5 - branch 21 (position "contact"), • an electrical connection branch 21 - contact carrier 5 - contact pins 16 - earthing switch contacts 4 - earth potential of the housing wall of the switching chamber housing 1 (position "earthing "), • • a separation between branch 21 and busbars 2 and between branch 21 and earth potential of the housing wall of the switching chamber housing 1 when the contact pins 16 are in the middle position within the contact carrier 5 (position" middle position ").
Die Kontaktstifte 16 sind über eine Isolationsstange 15 je Pol (Phase) und ein für alle Pole (Phasen) gemeinsames Verbindungsjoch 13 mit einer Spindel 10 verbunden, wodurch die zur Durchführung von Schaltvorgängen gewünschte lineare Verschiebung der Kontaktstifte 16 relativ zu den feststehenden Erdungsschalterkontakten 4 und Trennerschalterkontakten 18 erfolgt. Der Antrieb der Spindel 10 (translatorische Spindelbewegung) erfolgt durch Drehung einer Spindelmutter 11 , welche über eine Lagerung 7 in einem Spindelmuttergehäuse 6 drehbar gelagert ist. Die Drehung der Spindelmutter 11 kann beispielsweise unter Einsatz eines Motors und eines Keilriemens oder durch Einsatz mindestens eines Zahnrades erfolgen (wobei hierbei die Spindelmutter 11 mit einem Außen-Zahnkranz versehen ist). Vorteilhaft genügt ein einziger Motor zur Durchführung der dreipoligen (dreiphasigen) Bewegung der Kontaktstifte 16 des Trenn- und Erdungsschalters. Selbstverständlich ist auch ein auf die Spindel 10 einwirkender Handantrieb des Trenn- und Erdungsschalter 20 vorgesehen.The contact pins 16 are connected via an insulation rod 15 per pole (phase) and a connecting yoke 13 common to all poles (phases) to a spindle 10, as a result of which the linear displacement desired for carrying out switching operations is achieved the contact pins 16 relative to the fixed earthing switch contacts 4 and circuit breaker contacts 18. The spindle 10 (translatory spindle movement) is driven by rotating a spindle nut 11 which is rotatably mounted in a spindle nut housing 6 via a bearing 7. The spindle nut 11 can be rotated, for example, using a motor and a V-belt or by using at least one gear wheel (in which case the spindle nut 11 is provided with an external ring gear). A single motor is advantageously sufficient to carry out the three-pole (three-phase) movement of the contact pins 16 of the disconnector and earthing switch. Of course, a manual drive of the disconnecting and earthing switch 20 acting on the spindle 10 is also provided.
Die Durchführung der Sammelschienen 2 sowie des Abzweiges 21 aus dem Schaltkammergehäuse 1 erfolgt in allgemein bekannter Weise unter Einsatz mehrerer geeigneter Isolierflansche 3.The busbars 2 and the branch 21 from the switching chamber housing 1 are carried out in a generally known manner using several suitable insulating flanges 3.
In Fig. 2 ist ein seitlicher Schnitt durch den Spindelantrieb dargestellt. Es ist ein Abschnitt eines Schaltkammergehäuses 1 mit dem dreipoligen (dreiphasigen), kombinierten Trenn- und Erdungsschalter 20 zu erkennen. Drei Kontaktträger 5 dienen zur Führung der Kontaktstifte 16 und zur wahlweisen Kontaktierung dieser Kontaktstifte 16 mit Trennerschalterkontakten 18 oder Erdungsschalterkontakten 4. Die elektrische Kontaktierung selbst erfolgt zweckmäßig jeweils über Spiralfederkontakte (Kontaktringe) 19, welche die Kontaktstifte 16 im Kontaktierungsfall federnd und eng umschließen.2 shows a side section through the spindle drive. A section of a switching chamber housing 1 with the three-pole (three-phase), combined disconnector and earthing switch 20 can be seen. Three contact carriers 5 are used for guiding the contact pins 16 and for optionally contacting these contact pins 16 with isolating switch contacts 18 or earthing switch contacts 4. The electrical contacting itself is expediently carried out in each case via spiral spring contacts (contact rings) 19 which enclose the contact pins 16 resiliently and closely in the case of contact.
Die Kontaktstifte 16 sind über drei getrennte Isolationsstangen 15 mit einem gemeinsamen Verbindungsjoch 13 verbunden, an welchem die Spindel 10 sowie zu beiden Seiten der Spindel je ein Führungsbolzen 22 montiert sind, wobei sowohl die Spindel 10 als auch die beiden Führungsbolzen 22 die Gehäusewandung des Schaltkammergehäuses 1 durchbrechen. Wie vorstehend bereits erwähnt, erfolgt der Antrieb der translatorisch bewegbaren Spindel unter Einsatz der drehbaren Spindelmutter 11 , welche unter Verwendung einer Lagerung 7 drehbeweglich im Spindelmuttergehäuse 6 montiert ist. Während der translatorischen Bewegung der Spindel 10 gleiten die beiden Führungsbolzen 22 in Linearführungen 12, welche mit der Gehäusewandung des Schaltkammergehäuses 1 fest verbunden sind. Gasdichte, kappenförmige Abdeckungen 14 greifen an der Außenseite der Gehäusewandung des Schaltkammergehäuses 1 über die Führungsbolzen 22 und die Spindel 10. Im Innenraum dieser Abdeckungen 14 befindet sich Isoliergas 17, wie auch im Innenraum des Schaltkammergehäuses 1. Durch die Linearführungen 12 ergibt sich ein sehr genaues Eintauchen der Kontaktstifte 16 in die Spiralfederkontakte 19.The contact pins 16 are connected via three separate insulation rods 15 to a common connecting yoke 13, on which the spindle 10 and on each side of the spindle a guide pin 22 are mounted, both the spindle 10 and the two guide pins 22 the housing wall of the switching chamber housing 1 break through. As already mentioned above, the translationally movable spindle is driven using the rotatable spindle nut 11, which is rotatably mounted in the spindle nut housing 6 using a bearing 7. During the translatory movement of the spindle 10, the two guide bolts 22 slide in linear guides 12, which are firmly connected to the housing wall of the switching chamber housing 1. Gas-tight, cap-shaped covers 14 engage on the outside of the housing wall of the switching chamber housing 1 via the guide bolts 22 and the spindle 10. There is insulating gas 17 in the interior of these covers 14, as well as in the interior of the switching chamber housing 1. The linear guides 12 result in a very precise Immersion of the contact pins 16 in the spiral spring contacts 19.
Zweckmäßig erfolgt mit Hilfe der sich innerhalb der Abdeckungen 14 translatorisch bewegenden Führungsbolzen 22 gleichzeitig eine abgedichtete Stellungsanzeige 8 zur Anzeige der aktuellen Stellung des Trenn- und Erdungsschalters 20.A sealed position indicator 8 for displaying the current position of the disconnector and earthing switch 20 is expediently carried out with the aid of the guide bolts 22 which move translationally within the covers 14.
Bei der vorstehend erläuterten Ausführungsform befinden sich die Spindel und die zugeordneten Antriebskomponenten im Gasraum des Schaltkammergehäuses. Gemäß einer alternativen Ausführungsform ist es aufgrund der geometrischen Gestaltung des Spindelantriebes auch möglich, die einzelnen Phasen isoliert aus dem Schaltkammergehäuse 1 herauszuführen. Dies erfolgt zweckmäßig über die Isolationsstangen 15, welche über abgedichtete Durchbrüche durch die Wandung des Schaltkammergehäuses 1 geführt sind, wobei bei dieser alternativen Ausführungsform Verbindungsjoch 13, Spindel 10, Spindelmutter 11 , Spindelmuttergehäuse 6, Lagerung 7, Führungsbolzen 22, Linearführung 12 und Stellungsanzeige 8 außerhalb des Schaltkammergehäuses 1 angeordnet sind.In the embodiment described above, the spindle and the associated drive components are located in the gas space of the switch chamber housing. According to an alternative embodiment, the geometric design of the spindle drive also makes it possible to lead the individual phases out of the switching chamber housing 1 in an isolated manner. This is expediently carried out via the insulation rods 15, which are guided through sealed openings through the wall of the switching chamber housing 1, with the connection yoke 13, spindle 10, spindle nut 11, spindle nut housing 6, bearing 7, guide pin 22, linear guide 12 and position indicator 8 outside in this alternative embodiment of the interrupter housing 1 are arranged.
Auch wenn im Ausführungsbeispiel der Antrieb für einen Trenn- und Erdungsschalter verwendet wird, ist es in gleicher Art und Weise möglich, den Antrieb auch für einen Trennschalter oder für einen Erdungsschalter einzusetzen. Des gleichen ist der Antrieb nicht auf eine bestimmte Zahl an Phasen beschränkt, d. h. der Antrieb eignet sich universell für Schaltgeräte mit zwei, drei, vier usw. Polen (Phasen).Even if the drive is used for a disconnector and earthing switch in the exemplary embodiment, it is also possible in the same way to use the drive for a disconnector or for an earthing switch. Likewise, the drive is not limited to a certain number of phases, i. H. the drive is universally suitable for switching devices with two, three, four etc. poles (phases).
Beim vorstehend beschriebenen Ausführungsbeispiel dient ein einziger Antrieb + eine einzige Ansteuerung für die Betätigung mehrerer Phasen (Pole). Alternativ sind folgende Varianten möglich: • Je Phase (Pol) ist eine separate Spipdel mit separatem Antrieb vorgesehen, wobei eine einzige Ansteuerung für die Betätigung mehrerer Phasen (Pole) dient.In the exemplary embodiment described above, a single drive + a single control serves to actuate several phases (poles). Alternatively, the following variants are possible: • For each phase (pole) there is a separate spindle with a separate drive, whereby a single control serves to actuate several phases (poles).
• Je Phase (Pol) ist eine separate Spindel mit separatem Antrieb vorgesehen, wobei für die Betätigung jeder Phase (eines jeden Pols) eine separate Ansteuerung dient. Mit dieser Ausführungsform sind einpolige Kurzunterbrechungen realisierbar. • A separate spindle with separate drive is provided for each phase (pole), whereby a separate control is used for the actuation of each phase (of each pole). Single-pole short interruptions can be implemented with this embodiment.
Bezugszeichenliste:LIST OF REFERENCE NUMBERS
1 Schaltkammergehäuse 2 Sammelschiene 3 Isolierflansch 4 Erdungsschalterkontakt 5 Kontaktträger 6 Spindelmuttergehäuse 7 Lagerung 8 Stellungsanzeige q -10 Spindel 11 Spindelmutter 12 Linearführung 13 Verbindungsjoch 14 gasdichte Abdeckung 15 Isolationsstangen 16 Kontaktstift 17 Isoliergas 18 Trennerschalterkontakt 19 Spiralfederkontakt 20 kombinierter Trenn -und/oder Erdungsschalter 21 Abzweig 22 Führungsbolzen 1 interrupter housing 2 busbar 3 insulating flange 4 earthing switch contact 5 contact carrier 6 spindle nut housing 7 storage 8 position indicator q -10 spindle 11 spindle nut 12 linear guide 13 connecting yoke 14 gas-tight cover 15 insulating rods 16 contact pin 17 insulating gas 18 isolating switch contact 19 coil spring contact 20 combined isolating and / or earthing switch 21 branch 22 guide pins

Claims

Patentansprüche claims
1. Spindelantrieb für einen Trenn und/oder Erdungsschalter, wobei eine drehbeweglich in einem Spindelmuttergehäuse (6) gelagerte Spindelmutter (11) eine Spindel (10) translatorisch bewegt und hierdurch Kontaktierungselemente des Schaltgerätes translatorisch verschiebbar sind, dadurch gekennzeichnet, dass die Spindel (10) über ein für alle Phasen bzw. Pole gemeinsames Verbindungsjoch (13) und eine Isolationsstange (15) je Phase bzw. Pol einen in einem Kontaktträger (5) geführten Kontaktstift (16) betätigt.1. Spindle drive for a disconnector and / or earthing switch, wherein a spindle nut (11) rotatably mounted in a spindle nut housing (6) moves a spindle (10) in a translatory manner and thereby contacting elements of the switching device are translationally displaceable, characterized in that the spindle (10) Via a connection yoke (13) common to all phases or poles and an insulation rod (15) for each phase or pole, a contact pin (16) guided in a contact carrier (5) is actuated.
2. Spindelantrieb nach Anspruch 1 , dadurch gekennzeichnet, dass am Verbindungsjoch (13) mindestens ein Führungsbolzen (22) parallel zur Spindel (10) angeordnet und in einer Linearführung (1.2) geführt ist.2. Spindle drive according to claim 1, characterized in that on the connecting yoke (13) at least one guide pin (22) is arranged parallel to the spindle (10) and is guided in a linear guide (1.2).
3. Spindelantrieb nach Anspruch 2, dadurch gekennzeichnet, dass die Kontaktierungselemente in einem Schaltkammergehäuse (1) angeordnet sind und sowohl Spindel (10) als auch Führungsbolzen (22) die Gehäusewandung des Schaltkammergehäuses (1) durchbrechen.3. Spindle drive according to claim 2, characterized in that the contacting elements are arranged in a switching chamber housing (1) and both spindle (10) and guide pin (22) break through the housing wall of the switching chamber housing (1).
4. Spindelantrieb nach Anspruch 3, dadurch gekennzeichnet, dass Abdeckungen (14) über Spindel (10) und Führungsbolzen (22) greifen, wobei sich vorzugsweise ein auch innerhalb des Schaltkammergehäuses (1) eingesetztes Isoliergas (17) innerhalb der Abdeckungen befindet.4. Spindle drive according to claim 3, characterized in that covers (14) over spindle (10) and guide pin (22) engage, preferably an insulating gas (17) also being used within the switching chamber housing (1) is located within the covers.
5. Spindelantrieb nach Anspruch 4, dadurch gekennzeichnet, dass der mindestens eine Führungsbolzen (22) auf eine Stellungsanzeige (8) für die Position des Schaltgerätes einwirkt.5. Spindle drive according to claim 4, characterized in that the at least one guide pin (22) acts on a position indicator (8) for the position of the switching device.
6. Spindelantrieb nach Anspruch 2, dadurch gekennzeichnet, dass die Kontaktierungselemente in einem Schaltkammergehäuse (1) angeordnet sind und die Isolationsstangen (15) die Gehäusewandung des Schaltkammergehäuses durchbrechen. 6. Spindle drive according to claim 2, characterized in that the contacting elements are arranged in a switching chamber housing (1) and the insulation rods (15) break through the housing wall of the switching chamber housing.
7. Spindelantrieb nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass das Spindelmuttergehäuse (6) an der Gehäusewandung des Schaltkammergehäuses (1) befestigt ist.7. Spindle drive according to one of claims 3 to 6, characterized in that the spindle nut housing (6) on the housing wall of the switching chamber housing (1) is attached.
8. Abwandlung des Spindelantriebes nach Anspruch 1, dadurch gekennzeichnet, dass jedem Pol eine separate Spindel mit separatem Antrieb zugeordnet ist.8. modification of the spindle drive according to claim 1, characterized in that each pole is assigned a separate spindle with a separate drive.
9. Spindelantrieb nach Anspruch 8, dadurch gekennzeichnet, dass jedem Antrieb eine eigenständige Ansteuerung zugeordnet ist. 9. Spindle drive according to claim 8, characterized in that each drive is assigned an independent control.
EP04818788.4A 2003-11-21 2004-11-17 Spindle drive for a circuit breaker and/or earthing switch Not-in-force EP1687834B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354595A DE10354595B4 (en) 2003-11-21 2003-11-21 Spindle drive for a disconnector and / or earthing switch
PCT/EP2004/013003 WO2005050685A1 (en) 2003-11-21 2004-11-17 Spindle drive for a circuit breaker and/or earthing switch

Publications (2)

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EP1687834A1 true EP1687834A1 (en) 2006-08-09
EP1687834B1 EP1687834B1 (en) 2014-04-23

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US (1) US7479612B2 (en)
EP (1) EP1687834B1 (en)
JP (1) JP2007511887A (en)
KR (1) KR101123916B1 (en)
CN (1) CN100458997C (en)
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DE10354595B4 (en) 2005-09-22
JP2007511887A (en) 2007-05-10
US20070278080A1 (en) 2007-12-06
CN1883022A (en) 2006-12-20
KR101123916B1 (en) 2012-03-27
EP1687834B1 (en) 2014-04-23
US7479612B2 (en) 2009-01-20
DE10354595A1 (en) 2005-07-28
KR20060123166A (en) 2006-12-01
WO2005050685A1 (en) 2005-06-02
CN100458997C (en) 2009-02-04

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