EP1872380A2 - Load disconnecting switch and switchgear with a load disconnecting switch - Google Patents

Load disconnecting switch and switchgear with a load disconnecting switch

Info

Publication number
EP1872380A2
EP1872380A2 EP06724370A EP06724370A EP1872380A2 EP 1872380 A2 EP1872380 A2 EP 1872380A2 EP 06724370 A EP06724370 A EP 06724370A EP 06724370 A EP06724370 A EP 06724370A EP 1872380 A2 EP1872380 A2 EP 1872380A2
Authority
EP
European Patent Office
Prior art keywords
switch
housing
contact piece
field control
movable contact
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
EP06724370A
Other languages
German (de)
French (fr)
Other versions
EP1872380B1 (en
Inventor
Ole Granhaug
Jan-Henrik Kuhlefelt
Pal Skryten
Stanley Lohne
Robert Espeseth
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 Schweiz 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
Priority to PL06724370T priority Critical patent/PL1872380T3/en
Publication of EP1872380A2 publication Critical patent/EP1872380A2/en
Application granted granted Critical
Publication of EP1872380B1 publication Critical patent/EP1872380B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

  • the invention relates to a switch-disconnector according to the preamble of claim 1 and a switchgear with the load-break switch.
  • a switch-disconnector of the type mentioned has two housing sections, of which a housing section receives the drive.
  • This drive comprises a driven by means of a drive shaft pivoting lever, at the free end of a rod-like contact carrier is articulated under the intermediary of a connecting lever.
  • This rod-like contact carrier carries at its free end the movable contact piece, which forms a contact point with a fixed contact piece.
  • the contact carrier is guided within an elongated cylindrical container and in a Ausschalte Stuttgart the movable contact piece separates from the fixed contact piece, wherein an arc is drawn, which is blown within the container and deleted. Between the two contact pieces there is an isolating distance in the off position with a length determined by a standard.
  • the object of the invention is to provide a suitable field control within the separation distance.
  • surrounding field control rings are mounted on the second housing section, of which the first is arranged in the region of the fixed contact piece and the second in the region of the switch-off position of the movable contact piece.
  • the field control ring is connected to the potential of the fixed contact piece and the second field control ring connected to the potential of the movable contact piece in its off position via a respective connecting conductor.
  • the second field control ring can be arranged within the separation path located between the two contact pieces, such that the movable contact piece is located immediately outside the area between the two field control rings.
  • the field control rings can be glued to the outside of the second housing portion; but there is also the possibility that the first field control ring is formed at the free end of the outside of a pot, which pot is slipped over the free end of the first housing portion. At the bottom of the pot, the fixed contact piece is fixed and then on the outside of the bottom of the output conductor of the circuit breaker is connected.
  • the invention also relates to an electrical switchgear, in which the switch-disconnector is installed, said switchgear being characterized in that the second housing portion of this surrounding field control rings are mounted, of which the first in the fixed contact piece and the second in the off position of the movable contact piece is arranged, and that the first field control ring are connected to the potential of the fixed contact piece and the second to the potential of the movable contact piece in its off position via a respective connecting conductor.
  • FIG. 1 is a longitudinal sectional view of a load-break switch according to the invention
  • Fig. 2 is a perspective view of the switch
  • Fig. 3 is a perspective view of a detail of the housing.
  • a switch-disconnector 10 comprises a housing 11 which has two housing sections 12, 13, of which the first housing section 12 contains a drive 14 and the second housing section 13 contains a contact point 15.
  • the drive 14 has a pivotable drive lever 16 which cooperates positively with a provided with a 1 profile 17 drive shaft 18.
  • the profile 17 is a groove profile; it could also be a polygonal profile or the like.
  • the free end of the drive lever 16 is pivotally connected via a connecting lever 19 with a rod-like contact carrier 20, at the free end of a movable contact piece 21 is attached.
  • the movable contact piece 21 cooperates with a stationary contact piece 22.
  • the second housing portion is formed as an elongated, cylindrical container 23, which is provided at its one end 24 with a through hole 25 having a container bottom 26.
  • the other, free end of the container 23 carries on its inner surface an internal thread 27.
  • the first housing portion 12 is composed of two housing halves, of which only the housing half 28 is shown, because the second housing half is removed to provide an insight into the To allow first housing section. 2 shows the two housing halves 28, 28a.
  • a semi-cylindrical collar extension 29 is formed, which together when the housing halves are assembled, form a cylindrical collar on the outer surface of an external thread 30 is formed on the the internal thread 27 of the container is screwed to hold the housing of the circuit breaker together.
  • the container 23 is provided on its outer surface with field control rings 31, 32, of which the first field control ring 31 is associated with the fixed contact piece 22.
  • This first field control ring 31 is integrally formed at the free end of a pot 33 of electrically conductive material by the free end is axially deformed and radially everted.
  • the bottom 34 of the pot 33 is pulled axially outward and forms a collar-like axial projection 35, which comprises an extension 36 on the fixed contact piece 22 in an electrically conductive manner, so that the pot 33 is at the potential at which the fixed contact piece 22 lies.
  • the second field control ring 32 is a torus-shaped bent ring which is open on the inside, so that two edges 32 a and 32 b are formed, which rest on the outer surface of the container 23.
  • the field control ring 32 is at a height at which the movable contact piece 21 is in the off state. More specifically, the movable contact piece 21 is located outside the region between the distally opposite plane of the field control rings outwardly contacting planes which are perpendicular to the longitudinal axis of the container 23.
  • the field control ring 32 is connected via an invisible connecting conductor to the potential on which the movable contact piece is in the off state.
  • the field control rings are in the on state at the same potential; in the off state of the field control ring 31 are at high voltage potential and the field control ring 32 at ground potential, whereby an electric field is generated between the field control rings, which generates a homogenization of the electrical load and possibly prevents discharges.
  • the switch-disconnector is shown in its closed position. When an elimination occurs, the drive shaft 18 rotates and pivots the Aritriebshebel 16 in a clockwise direction, so that the contact carrier 20 and thus the movable contact piece 21 are moved away from the fixed contact piece. After extinguishing the arc, the field control rings act in the manner described above.
  • the load-break switch 10 is inserted into a carrier of a switchgear, see also the German patent application DE 10 2005 009 207.1 has the housing on the outer surfaces of its housing halves 28,28a parallel to the longitudinal axis of the container 23 extending grooves 40, 41 which in cutouts (not shown) of the carrier are inserted, see also the above-mentioned patent application.
  • the two housing halves held together on the one hand by the cut-outs and on the other hand by the first housing portion.
  • Fig. 3 shows a detail on the housing 10 according to arrow III in a greatly enlarged view.
  • two projections 50, 51 are integrally formed, wherein the one projection 51 is formed approximately radially on the container 23, whereas the other projection 50 has an L-shape, with a leg 52 which is at a small distance from the container outer surface to Projection 51 projects approximately tangentially in a plane which is perpendicular to the longitudinal axis of the container. Between the free end of the projection 50 and the projection 51, a distance A remains free.
  • a third projection 53 is formed, whose width B, measured perpendicular to the parting plane between the housing halves, is greater than the distance A.
  • the projection 53 jumps in the direction of the container longitudinal axis of the both housing halves before and engages in the area between the projections 50, 51, when the container is fixed to the housing halves.
  • a recess 54 is provided behind the assembled state, as shown, the projection 50 engages.
  • the assembly is done as follows: When the container is screwed on, it is rotated in the direction of arrow U about its axis. Shortly before the end position slides an inclined surface 55 of the projection 50 on the end face 56 which is directed to the container outer surface. In this case, the projection 50 deforms until the projection 53 bears against the projection 51. At this moment, the projection 50 snaps into the recess, so that the container is locked to the first housing portion.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Patch Boards (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)

Abstract

The invention relates to a load disconnecting circuit with a housing that has a first housing section, which houses the drive, and has a second housing section, which houses a fixed contact element and a longitudinally extended moving contact element. The second housing section has a longitudinal extension adapted to the moving contact element. Field-control rings are placed on the second housing section while encircling it, of which the first are arranged in the vicinity of the fixed contact element and the second are arranged in the vicinity of the switch-off position of the moving contact element. Via a respective connection conductor, the first field-control ring is connected to the potential of the fixed contact element, and the second field-control ring is connected to the potential of the moving contact element when in its switch-off position.

Description

Lasttrenπschalter sowie Schaltanlage mit Lastrennschalter Load switch and switchgear with load-break switch
Beschreibungdescription
Die Erfindung betrifft einen Lasttrennschalter nach dem Oberbegriff des Anspruches 1 sowie eine Schaltanlage mit dem Lasttrennschalter.The invention relates to a switch-disconnector according to the preamble of claim 1 and a switchgear with the load-break switch.
Ein Lasttrennschalter der eingangs genannten Art ist an sich bekannt. Es besitzt zwei Gehäuseabschnitte, von denen ein Gehäuseabschnitt den Antrieb aufnimmt. Dieser Antrieb umfasst einen mittels einer Antriebswelle angetriebenen Schwenkhebel, an dessen freiem Ende ein stangenartiger Kontaktträger unter Zwischenführung eines Verbindungshebels angelenkt ist. Dieser stangenartige Kontaktträger trägt an seinem freien Ende das bewegliche Kontaktstück, das mit einem feststehenden Kontaktstück eine Kontaktstelle bildet.A switch-disconnector of the type mentioned is known per se. It has two housing sections, of which a housing section receives the drive. This drive comprises a driven by means of a drive shaft pivoting lever, at the free end of a rod-like contact carrier is articulated under the intermediary of a connecting lever. This rod-like contact carrier carries at its free end the movable contact piece, which forms a contact point with a fixed contact piece.
Der Kontaktträger ist innerhalb eines lang gestreckten zylindrischen Behälters geführt und bei einer Ausschalthandlung trennt sich das bewegliche Kontaktstück vom feststehenden Kontaktstück, wobei ein Lichtbogen gezogen wird, der innerhalb des Behälters beblasen und gelöscht wird. Zwischen den beiden Kontaktstücken befindet sich in Ausschaltstellung eine Trennstrecke mit einer durch eine Norm bestimmte Länge.The contact carrier is guided within an elongated cylindrical container and in a Ausschaltehandlung the movable contact piece separates from the fixed contact piece, wherein an arc is drawn, which is blown within the container and deleted. Between the two contact pieces there is an isolating distance in the off position with a length determined by a standard.
Aufgabe der Erfindung ist es, eine geeignete Feldsteuerung innerhalb der Trennstrecke zu schaffen.The object of the invention is to provide a suitable field control within the separation distance.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.
Erfindungsgemäß also sind am zweiten Gehäuseabschnitt dieses umgebende Feldsteuerringe angebracht, von denen der ersten im Bereich des feststehenden Kontaktstückes und der zweite im Bereich der Ausschaltstellung des beweglichen Kontaktstückes angeordnet sind. Der Feldsteuerring ist an das Potential des feststehenden Kontaktstückes und der zweite Feldsteuerring an das Potential des beweglichen Kontaktstückes in dessen Ausschaltstellung über je einen Verbindungsleiter angeschlossen.According to the invention, surrounding field control rings are mounted on the second housing section, of which the first is arranged in the region of the fixed contact piece and the second in the region of the switch-off position of the movable contact piece. The field control ring is connected to the potential of the fixed contact piece and the second field control ring connected to the potential of the movable contact piece in its off position via a respective connecting conductor.
Mit dieser Ausgestaltung wird das elektrische Feld zwischen den beiden Kontaktstücken in der Ausschaltstellung vergleichmäßigt, weil das elektrische Potential des feststehenden Kontaktstückes Hochspannung und das elektrische Potential des beweglichen Kontaktstückes darin Erde ist.With this configuration, the electric field between the two contact pieces in the off position is made uniform, because the electrical potential of the fixed contact piece is high voltage and the electrical potential of the movable contact piece in the ground.
Gemäß einer vorteilhaften Ausgestaltung kann der zweite Feldsteuerring innerhalb der zwischen den beiden Kontaktstücken befindlichen Trennstrecke angeordnet sein, dergestalt, dass sich das bewegliche Kontaktstück unmittelbar außerhalb des Bereiches zwischen den beiden Feldsteuerringen befindet.According to an advantageous embodiment, the second field control ring can be arranged within the separation path located between the two contact pieces, such that the movable contact piece is located immediately outside the area between the two field control rings.
Die Feldsteuerringe können dabei auf der Außenseite des zweiten Gehäuseabschnittes festgeklebt sein; es besteht dabei aber auch die Möglichkeit, dass der erste Feldsteuerring am freien Ende der Außenseite eines Topfes angeformt ist, welcher Topf über das freie Ende des ersten Gehäuseabschnittes gestülpt ist. Am Boden des Topfes ist das feststehende Kontaktstück befestigt und auf der Außenseite des Bodens ist dann der Abgangsleiter des Lasttrennschalters anzuschließen.The field control rings can be glued to the outside of the second housing portion; but there is also the possibility that the first field control ring is formed at the free end of the outside of a pot, which pot is slipped over the free end of the first housing portion. At the bottom of the pot, the fixed contact piece is fixed and then on the outside of the bottom of the output conductor of the circuit breaker is connected.
Die Erfindung betrifft außerdem auch eine elektrische Schaltanlage, in welcher der Lasttrennschalter eingebaut ist, wobei diese Schaltanlage dadurch gekennzeichnet ist, dass am zweiten Gehäuseabschnitt dieses umgebende Feldsteuerringe angebracht sind, von denen der erste im Bereich des feststehenden Kontaktstückes und der zweite im Bereich der Ausschaltstellung des beweglichen Kontaktstückes angeordnet ist, und dass der erste Feldsteuerring an das Potential des feststehenden Kontaktstückes und der zweite an das Potential des beweglichen Kontaktstückes in dessen Ausschaltstellung über je einen Verbindungsleiter angeschlossen sind.The invention also relates to an electrical switchgear, in which the switch-disconnector is installed, said switchgear being characterized in that the second housing portion of this surrounding field control rings are mounted, of which the first in the fixed contact piece and the second in the off position of the movable contact piece is arranged, and that the first field control ring are connected to the potential of the fixed contact piece and the second to the potential of the movable contact piece in its off position via a respective connecting conductor.
Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen. Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen weitere Ausführungsformen, Verbesserungen und weitere Vorteile näher erläutert und beschrieben werden.Further advantageous embodiments and improvements of the invention can be found in the further subclaims. Reference to the drawing, in which an embodiment of the invention is shown, further embodiments, improvements and other advantages will be explained and described in detail.
Es zeigen:Show it:
Fig. 1 eine Längsschnittansicht eines erfindungsgemäßen Lasttrennschalters,1 is a longitudinal sectional view of a load-break switch according to the invention,
Fig. 2 eine perspektivische Ansicht des Schalters undFig. 2 is a perspective view of the switch and
Fig. 3 eine perspektivische Ansicht eines Details des Gehäuses.Fig. 3 is a perspective view of a detail of the housing.
Ein Lasttrennschalter 10 umfasst ein Gehäuse 11 , das zwei Gehäuseabschnitte 12, 13 aufweist, von denen der erste Gehäuseabschnitt 12 einen Antrieb 14 und der zweite Gehäuseabschnitt 13 eine Kontaktstelle 15 enthält. Der Antrieb 14 besitzt einen schwenkbaren Antriebshebel 16, der mit einer mit einen 1 Profil 17 versehenen Antriebswelle 18 formschlüssig zusammenwirkt. Das Profil 17 ist ein Nutenprofil; es könnte auch ein Mehreckprofil oder dergleichen sein. Das freie Ende des Antriebshebels 16 ist über einen Verbindungshebel 19 gelenkig mit einem stangenartigen Kontaktträger 20 verbunden, an dessen freiem Ende ein bewegliches Kontaktstück 21 befestigt ist. Das bewegliche Kontaktstück 21 wirkt mit einem feststehenden Kontaktstück 22 zusammen. Der Aufbau und die Wirkungsweise sind an sich bekannt, so dass hierzu nichts näheres ausgesagt werden soll, lediglich soviel, dass die Kontaktstelle eine Hauptkontaktstelle mit Kontakttulpen, über welche der Strom in Einschaltstellung fließt, und eine lichtbogenfeste Zusatzkontaktstelle aufweist, an der beim Ausschalten oder Einschalten ein Lichtbogen gezogen wird, so dass die Hauptkontaktstelle nicht mit Lichtbogenerscheinungen belastet wird.A switch-disconnector 10 comprises a housing 11 which has two housing sections 12, 13, of which the first housing section 12 contains a drive 14 and the second housing section 13 contains a contact point 15. The drive 14 has a pivotable drive lever 16 which cooperates positively with a provided with a 1 profile 17 drive shaft 18. The profile 17 is a groove profile; it could also be a polygonal profile or the like. The free end of the drive lever 16 is pivotally connected via a connecting lever 19 with a rod-like contact carrier 20, at the free end of a movable contact piece 21 is attached. The movable contact piece 21 cooperates with a stationary contact piece 22. The structure and mode of operation are known per se, so that nothing is to be stated here, only so much that the contact point has a main contact point with contact tulips, over which the current flows in closed position, and an arc-resistant additional contact point, at the power off or on An arc is drawn so that the main contact point is not burdened with arcing phenomena.
Der zweite Gehäuseabschnitt ist als langgestreckter, zylindrischer Behälter 23 ausgebildet, der an seinem einen Ende 24 mit einem ein Durchgangsloch 25 aufweisenden Behälterboden 26 versehen ist. Das andere, freie Ende des Behälters 23 trägt an seiner Innenfläche ein Innengewinde 27. Der erste Gehäuseabschnitt 12 ist aus zwei Gehäusehälften zusammengesetzt, von denen nur die Gehäusehälfte 28 dargestellt ist, weil die zweite Gehäusehälfte abgenommen ist, um einen Einblick in den ersten Gehäuseabschnitt gestatten zu können. Die Fig. 2 zeigt die beiden Gehäusehälften 28, 28a.The second housing portion is formed as an elongated, cylindrical container 23, which is provided at its one end 24 with a through hole 25 having a container bottom 26. The other, free end of the container 23 carries on its inner surface an internal thread 27. The first housing portion 12 is composed of two housing halves, of which only the housing half 28 is shown, because the second housing half is removed to provide an insight into the To allow first housing section. 2 shows the two housing halves 28, 28a.
Senkrecht zur Längsachse der Antriebswelle 18 verläuft die Mittelachse des Behälters 23 und an jeder Gehäusehälfte 28 ist ein halbzylindrischer Kragenfortsatz 29 angeformt, die miteinander dann, wenn die Gehäusehälften zusammengesetzt sind, einen zylindrischen Kragen bilden, an dessen Außenfläche ein Außengewinde 30 angeformt ist, auf die das Innengewinde 27 des Behälters aufgeschraubt wird, um das Gehäuse des Lasttrennschalters zusammenzuhalten.Perpendicular to the longitudinal axis of the drive shaft 18 extends the central axis of the container 23 and on each housing half 28, a semi-cylindrical collar extension 29 is formed, which together when the housing halves are assembled, form a cylindrical collar on the outer surface of an external thread 30 is formed on the the internal thread 27 of the container is screwed to hold the housing of the circuit breaker together.
Der Behälter 23 ist an seiner Außenfläche mit Feldsteuerringen 31 , 32 versehen, von denen der erste Feldsteuerring 31 dem feststehenden Kontaktstück 22 zugeordnet ist. Dieser erste Feldsteuerring 31 ist am freien Ende eines Topfes 33 aus elektrisch leitendem Material angeformt, indem das freie Ende axial verformt und radial ausgestülpt wird. Der Boden 34 des Topfes 33 ist axial nach außen gezogen und bildet einen kragenartigen axialen Vorsprung 35, der elektrisch leitend einen Fortsatz 36 am feststehenden Kontaktstück 22 umfasst, so dass sich der Topf 33 auf dem Potential befindet, auf dem das feststehende Kontaktstück 22 liegt.The container 23 is provided on its outer surface with field control rings 31, 32, of which the first field control ring 31 is associated with the fixed contact piece 22. This first field control ring 31 is integrally formed at the free end of a pot 33 of electrically conductive material by the free end is axially deformed and radially everted. The bottom 34 of the pot 33 is pulled axially outward and forms a collar-like axial projection 35, which comprises an extension 36 on the fixed contact piece 22 in an electrically conductive manner, so that the pot 33 is at the potential at which the fixed contact piece 22 lies.
Der zweite Feldsteuerring 32 ist ein torusförmig gebogener Ring, der innen offen ist, so dass sich zwei Kanten 32a und 32b bilden, die auf der Außenfläche des Behälters 23 aufliegen. Der Feldsteuerring 32 liegt auf einer Höhe, auf der sich das bewegliche Kontaktstück 21 im Ausschaltzustand befindet. Genauer gesagt, befindet sich das bewegliche Kontaktstück 21 außerhalb des Bereiches zwischen den distal entgegengesetzt liegenden die Feldsteuerringe außen berührenden Ebenen, die senkrecht zur Längsachse des Behälters 23 verlaufen. Der Feldsteuerring 32 ist über einen nicht sichtbaren Verbindungsleiter mit dem Potential verbunden, auf dem sich das bewegliche Kontaktstück im Ausschaltzustand befindet. Damit liegen die Feldsteuerringe im Einschaltzustand auf gleichem Potential; im Ausschaltzustand liegen der Feldsteuerring 31 auf Hochspannungspotential und der Feldsteuerring 32 auf Erdpotential, wodurch zwischen den Feldsteuerringen ein elektrisches Feld erzeugt wird, das eine Vergleichmäßigung der elektrischen Belastung erzeugt und eventuell Entladungen verhindert. Der Lasttrennschalter ist in seiner Einschaltstellung dargestellt. Wenn eine Ausschaltung erfolgt, verdreht sich die Antriebswelle 18 und verschwenkt den Aritriebshebel 16 im Uhrzeigersinn, so dass der Kontaktträger 20 und damit das bewegliche Kontaktstück 21 vom feststehenden Kontaktstück weg bewegt werden. Nach der Löschung des Lichtbogens wirken die Feldsteuerringe in oben beschriebener Weise.The second field control ring 32 is a torus-shaped bent ring which is open on the inside, so that two edges 32 a and 32 b are formed, which rest on the outer surface of the container 23. The field control ring 32 is at a height at which the movable contact piece 21 is in the off state. More specifically, the movable contact piece 21 is located outside the region between the distally opposite plane of the field control rings outwardly contacting planes which are perpendicular to the longitudinal axis of the container 23. The field control ring 32 is connected via an invisible connecting conductor to the potential on which the movable contact piece is in the off state. Thus, the field control rings are in the on state at the same potential; in the off state of the field control ring 31 are at high voltage potential and the field control ring 32 at ground potential, whereby an electric field is generated between the field control rings, which generates a homogenization of the electrical load and possibly prevents discharges. The switch-disconnector is shown in its closed position. When an elimination occurs, the drive shaft 18 rotates and pivots the Aritriebshebel 16 in a clockwise direction, so that the contact carrier 20 and thus the movable contact piece 21 are moved away from the fixed contact piece. After extinguishing the arc, the field control rings act in the manner described above.
Damit der Lasttrennschalter 10 in einen Träger einer Schaltanlage eingesetzt ist, siehe auch die deutsche Patentanmeldung DE 10 2005 009 207.1 besitzt das Gehäuse auf den Außenflächen seiner Gehäusehälften 28,28a parallel zur Längsachse des Behälters 23 verlaufende Rillen 40, 41 , die in Ausschnitte (nicht gezeigt) des Trägers eingesteckt werden, siehe hierzu auch die oben genannte Patentanmeldung. Im montierten Zustand, dann also wenn der Lasttrennschalter 10 in einer Schaltanlage eingebaut ist, die beiden Gehäusehälften einerseits durch die Ausschnitte und andererseits durch den ersten Gehäuseabschnitt zusammen gehalten.Thus, the load-break switch 10 is inserted into a carrier of a switchgear, see also the German patent application DE 10 2005 009 207.1 has the housing on the outer surfaces of its housing halves 28,28a parallel to the longitudinal axis of the container 23 extending grooves 40, 41 which in cutouts (not shown) of the carrier are inserted, see also the above-mentioned patent application. In the assembled state, then so when the load-break switch 10 is installed in a switchgear, the two housing halves held together on the one hand by the cut-outs and on the other hand by the first housing portion.
Die Fig. 3 zeigt ein Detail am Gehäuse 10 gemäß Pfeilrichtung III in stark vergrößerter Darstellung. Am freien Ende des Behälters 23 sind zwei Vorsprünge 50, 51 angeformt, wobei der eine Vorsprung 51 etwa radial am Behälter 23 angeformt ist, wogegen der andere Vorsprung 50 eine L-Form aufweist, mit einem Schenkel 52, der in geringem Abstand zur Behälteraußenfläche zum Vorsprung 51 hin etwa tangential in einer Ebene vorspringt, die senkrecht zur Längsachse des Behälters verläuft. Zwischen dem freien Ende des Vorsprunges 50 und dem Vorsprung 51 bleibt ein Abstand A frei.Fig. 3 shows a detail on the housing 10 according to arrow III in a greatly enlarged view. At the free end of the container 23, two projections 50, 51 are integrally formed, wherein the one projection 51 is formed approximately radially on the container 23, whereas the other projection 50 has an L-shape, with a leg 52 which is at a small distance from the container outer surface to Projection 51 projects approximately tangentially in a plane which is perpendicular to the longitudinal axis of the container. Between the free end of the projection 50 and the projection 51, a distance A remains free.
Am ersten Gehäuseabschnitt 12 in der Trennebene zwischen den beiden Gehäusehälften 28, 28a ist ein dritter Vorsprung 53 angeformt, dessen Breite B, senkrecht zur Trennebene zwischen den Gehäusehälften gemessen, größer ist als der Abstand A. Der Vorsprung 53 springt in Richtung der Behälterlängsachse von den beiden Gehäusehälften vor und greift in den Bereich zwischen den Vorsprängen 50, 51 ein, wenn der Behälter an den Gehäusehälften fixiert ist. Am Vorsprung 53 ist ein Rücksprung 54 vorgesehen, hinter den im montierten Zustand, wie gezeichnet, der Vorsprung 50 greift.On the first housing portion 12 in the parting plane between the two housing halves 28, 28a, a third projection 53 is formed, whose width B, measured perpendicular to the parting plane between the housing halves, is greater than the distance A. The projection 53 jumps in the direction of the container longitudinal axis of the both housing halves before and engages in the area between the projections 50, 51, when the container is fixed to the housing halves. At the projection 53, a recess 54 is provided behind the assembled state, as shown, the projection 50 engages.
Die Montage geschieht wie folgt: Wenn der Behälter aufgeschraubt wird, wird er in Pfeilrichtung U um seine Achse verdreht. Kurz vor der Endstellung gleitet eine Schrägfläche 55 des Vorsprunges 50 auf die Stirnfläche 56, die zur Behälteraußenfläche gerichtet ist. Dabei verformt sich der Vorsprung 50, bis sich der Vorsprung 53 gegen den Vorsprung 51 anlegt. In diesem Augenblick schnappt der Vorsprung 50 in den Rücksprung, so dass der Behälter mit dem ersten Gehäuseabschnitt verrastet ist. The assembly is done as follows: When the container is screwed on, it is rotated in the direction of arrow U about its axis. Shortly before the end position slides an inclined surface 55 of the projection 50 on the end face 56 which is directed to the container outer surface. In this case, the projection 50 deforms until the projection 53 bears against the projection 51. At this moment, the projection 50 snaps into the recess, so that the container is locked to the first housing portion.

Claims

Patentansprüche claims
1. Lasttrennschalter mit einem Gehäuse, das einen den Antrieb aufnehmenden ersten Gehäuseabschnitt und einen ein feststehendes Kontaktstück und ein lang gestrecktes bewegliches Kontaktstück aufnehmenden zweiten Gehäuseabschnitt aufweist, wobei der zweite Gehäuseabschnitt eine dem beweglichen Kontaktstück angepasste Längserstreckung aufweist, dadurch gekennzeichnet, dass am zweiten Gehäuseabschnitt dieses umgebende Feldsteuerringe angebracht sind, von denen der erste im Bereich des feststehenden Kontaktstückes und der zweite im Bereich der Ausschaltstellung des beweglichen Kontaktstückes angeordnet sind, und dass der erste Feldsteuerring an das Potential des feststehenden Kontaktstückes und der zweite an das Potential des beweglichen Kontaktstückes in dessen Ausschaltstellung über je einen Verbindungsleiter angeschlossen sind.A load-break switch having a housing which has a first housing section receiving the drive and a second housing section receiving a fixed contact piece and an elongated movable contact piece, wherein the second housing section has a longitudinal extension adapted to the movable contact piece, characterized in that on the second housing section this surrounding field control rings are mounted, of which the first in the fixed contact portion and the second are arranged in the off position of the movable contact piece, and that the first field control ring to the potential of the fixed contact piece and the second to the potential of the movable contact piece in its off position are connected via a respective connecting conductor.
2. Lasttrennschalter nach Anspruch 1 , dadurch gekennzeichnet, dass der zweite Feldsteuerring innerhalb der zwischen den beiden Kontaktstücken befindlichen Trennstrecke angeordnet ist, dergestalt, dass sich das bewegliche Kontaktstück unmittelbar außerhalb des Bereiches zwischen den beiden Feldsteuerringen befindet.2. Switch-disconnector according to claim 1, characterized in that the second field control ring is disposed within the located between the two contact pieces separating path, such that the movable contact piece is located immediately outside the range between the two field control rings.
3. Lasttrennschalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verbindungsleiter innerhalb des Gehäuses verlaufen.3. Switch-disconnector according to claim 1 or 2, characterized in that the connecting conductors extend within the housing.
4. Lasttrennschalter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die Feldsteuerringe auf der Außenseite des zweiten Gehäuseabschnittes festgeklebt sind.4. Switch-disconnector according to one of the preceding claims, characterized in that the field control rings are glued to the outside of the second housing portion.
5. Lasttrennschalter nach Anspruch 4, dadurch gekennzeichnet, dass auf der Außenseite des zweiten Gehäuseabschπittes wenigstens für den dem beweglichen Kontaktstück zugeordneten Feldsteuerring eine umlaufende Rille vorgesehen ist, in die der zweite Feldsteuerring einrastbar ist. 5. Switch-disconnector according to claim 4, characterized in that on the outside of the second Gehäuseabschπittes at least for the movable contact piece associated field control ring is provided a circumferential groove into which the second field control ring can be latched.
6. Lasttrennschalter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass der erste Feldsteuerring am freien Ende der Außenseite eines Topfes angeformt ist, welcher Topf über das freie Ende des ersten Gehäuseabschnittes gestülpt ist, dass an dem Boden des Topfes das feststehende Kontaktstück befestigt ist, und dass auf der Außenseite des Bodens ein Abgangsleiter des Lasttrennschalters anschließbar ist.6. Switch-disconnector according to one of the preceding claims, characterized in that the first field control ring is formed at the free end of the outside of a pot, which pot is slipped over the free end of the first housing portion, that at the bottom of the pot, the fixed contact piece is attached, and that on the outside of the floor, an outgoing conductor of the circuit breaker is connectable.
7. Lasttrennschalter nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass der erste Gehäuseabschnitt aus zwei Gehäusehalbschalen zusammengesetzt ist, deren .freie Kanten gegeneinander gesetzt sind.7. Switch-disconnector according to one of the preceding claims, characterized in that the first housing section is composed of two housing halves whose .freie edges are set against each other.
8. Lasttrennschalter nach Anspruch 7, dadurch gekennzeichnet, dass der zweite Gehäuseabschnitt als ein an einem Ende geschlossener zylindrischer Behälter ausgebildet ist, der mit seinem mit einem Innengewinde versehenen freien Rand über an den beiden Gehäusehälften angeordnete, vorspringende halbkreisförmige Kragenabschnitte mit einem Außengewinde schraubbar ist, so dass die beiden Gehäusehälften mittels der Kragenabschnitte und des Behälters zusammengehalten sind.8. Switch-disconnector according to claim 7, characterized in that the second housing portion is formed as a closed at one end cylindrical container which is screwed with its provided with an internal free edge on disposed on the two housing halves, projecting semi-circular collar portions with an external thread, so that the two housing halves are held together by means of the collar sections and the container.
9. Lasttrennschalter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass an dem ersten Gehäuseabschnitt ein Vorsprung und am zweiten Gehäuseabschnitt zwei weitere Vorsprünge angeformt sind, die im montierten Zustand zur gegenseitigen Verrastung ineinander greifen.9. Switch-disconnector according to one of the preceding claims, characterized in that on the first housing portion, a projection and the second housing portion, two further projections are formed, which engage in the assembled state for mutual latching.
10. Elektrische Schaltanlage, in welche der Lasttrennschalter nach einem der Ansprüche 1 bis 8 einbaubar ist, dadurch gekennzeichnet, dass innerhalb der Schaltanlage in Träger angeordnet ist, der eine vertikal verlaufende Platte umfasst, die zur oberen Kante hin offene Schlitze aufweist, dass an den seitlichen Außenflächen der Gehäusehalbschalen parallel zu der Bewegungsrichtung des beweglichen Kontaktstückes verlaufende Rillen angeformt sind, und dass zur Montage des Lasttrennschalters in die Schaltanlage der Lasttrennschalter mit den Rillen in die Schlitze eingeschoben werden. 10. Electrical switchgear, in which the switch-disconnector is installed according to one of claims 1 to 8, characterized in that is arranged within the switchgear in carrier, comprising a vertically extending plate having the upper edge towards open slots that on the Side outer surfaces of the housing half-shells are formed parallel to the direction of movement of the movable contact piece extending grooves, and that are inserted for mounting the switch-disconnector in the switchgear of the circuit breaker with the grooves in the slots.
EP06724370.9A 2005-04-18 2006-04-18 Load disconnecting switch and switchgear with a load disconnecting switch Active EP1872380B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06724370T PL1872380T3 (en) 2005-04-18 2006-04-18 Load disconnecting switch and switchgear with a load disconnecting switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005017902A DE102005017902A1 (en) 2005-04-18 2005-04-18 Switch-disconnector and switchgear with switch-disconnector
PCT/EP2006/003499 WO2006111338A2 (en) 2005-04-18 2006-04-18 Load disconnecting switch and switchgear with a load disconnecting switch

Publications (2)

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EP1872380A2 true EP1872380A2 (en) 2008-01-02
EP1872380B1 EP1872380B1 (en) 2017-01-25

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US (1) US7767917B2 (en)
EP (1) EP1872380B1 (en)
CN (1) CN101164131B (en)
DE (1) DE102005017902A1 (en)
DK (1) DK1872380T3 (en)
ES (1) ES2622428T3 (en)
NO (1) NO338574B1 (en)
PL (1) PL1872380T3 (en)
WO (1) WO2006111338A2 (en)

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Also Published As

Publication number Publication date
NO20075909L (en) 2008-01-18
US7767917B2 (en) 2010-08-03
CN101164131B (en) 2010-12-15
DK1872380T3 (en) 2017-05-08
CN101164131A (en) 2008-04-16
US20090065333A1 (en) 2009-03-12
PL1872380T3 (en) 2017-07-31
DE102005017902A1 (en) 2006-10-19
NO338574B1 (en) 2016-09-05
WO2006111338A3 (en) 2007-01-18
WO2006111338A2 (en) 2006-10-26
ES2622428T3 (en) 2017-07-06
EP1872380B1 (en) 2017-01-25

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