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EP1187157A1 - Disconnecting switch - Google Patents

Disconnecting switch Download PDF

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Publication number
EP1187157A1
EP1187157A1 EP00810793A EP00810793A EP1187157A1 EP 1187157 A1 EP1187157 A1 EP 1187157A1 EP 00810793 A EP00810793 A EP 00810793A EP 00810793 A EP00810793 A EP 00810793A EP 1187157 A1 EP1187157 A1 EP 1187157A1
Authority
EP
European Patent Office
Prior art keywords
isolating
encapsulation
contacts
insulating layer
projection
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
EP00810793A
Other languages
German (de)
French (fr)
Other versions
EP1187157B1 (en
Inventor
Gerhard Dr. Salge
Marco Dr. Piemontesi
Christoph Dr. Heitz
Herbert Meinecke
Diego Sologuren-Sanchez
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 Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP00810793A priority Critical patent/EP1187157B1/en
Priority to DE50013696T priority patent/DE50013696D1/en
Priority to AU63612/01A priority patent/AU780289B2/en
Priority to US09/942,916 priority patent/US6506067B2/en
Priority to KR1020010053155A priority patent/KR100771031B1/en
Priority to JP2001267073A priority patent/JP2002133980A/en
Priority to CNB011412380A priority patent/CN1186792C/en
Publication of EP1187157A1 publication Critical patent/EP1187157A1/en
Application granted granted Critical
Publication of EP1187157B1 publication Critical patent/EP1187157B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • 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
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • 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 is based on a disconnector according to the preamble of claim 1.
  • Such a circuit breaker is used within gas-insulated switchgear.
  • GIS gas-insulated switchgear
  • a circuit breaker essentially comprises a grounded enclosure, two of Isolators generally isolating contacts and held centrally in the encapsulation a sliding isolating contact finger.
  • the isolating contact finger is between the Disconnect contacts slidably arranged. With the disconnector open the isolating contact finger is essentially within one Isolating contact, so that the distance between the two isolating contacts the isolating Separating distance forms. When the disconnector is closed, the Isolating contact finger forms the isolating distance between the two isolating contacts a conductive connection. When opening and closing the disconnector forming isolating sparks the isolating contact fingers in the direction of one or of the other isolating contact until the isolating path is completely open or closed is.
  • the encapsulations of conventional disconnectors are particularly in the area of Separation distance enlarged to a flashover of a isolating spark To prevent encapsulation during the switching process.
  • the encapsulations are in generally designed as castings, which are complex and expensive to manufacture.
  • a disconnector is known in which on the inside of the Encapsulation of a solid insulation layer is applied.
  • To bridge the open switch due to leakage currents along the solid insulation layer to prevent the encapsulation is in the area of the middle of the separation distance Solid insulation layer interrupted by a bulging, earthed bead.
  • an additional one that covers the bead tubular insulating screen provided.
  • the invention has for its object a disconnector of the aforementioned To create kind that has a high dielectric strength and yet simple and is compact and inexpensive to manufacture.
  • the object is achieved according to claim 1 in that the insulating layer at least in the area between the isolating contacts on the inside of the Encapsulation is applied, and that at least one protrusion on the insulating layer is appropriate.
  • the distance between the encapsulation and the Isolating contacts can be reduced because the insulating layer prevents a Discharge which occurs when the disconnector is opened in the direction of the enclosure developed, the encapsulation reached and would lead to a high-current arc.
  • the open circuit breaker can be bridged by leakage currents along the solid insulation layer on the encapsulation through the protrusion on the Insulating layer can be prevented.
  • FIG. 1 shows a first embodiment of the disconnector according to the invention.
  • the isolating contacts are designed in the form of rounded shield electrodes.
  • a separating contact finger 3, which is designed to be movable, is arranged between the two isolating contacts.
  • the isolating contacts 2 are held centrally by support insulators 4 in the encapsulation 1.
  • An insulation layer 7 is arranged on the inside of the encapsulation 1 in the region of the isolating section between the two isolating contacts 2.
  • the insulation layer 7 advantageously extends into the area of the isolating contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section remains between the support insulator 4 and the insulation layer 7.
  • the insulation layer 7 has an inward projection 8 made of insulation material. With this projection 8, any arcing of the isolating spark 5 that may occur on the insulation layer can be prevented from spreading in the direction of the encapsulation.
  • the thickness I 1 of the insulation layer 7 makes up less than half the length of the entire insulation path I tot between the isolating contact 2 and the encapsulation 1.
  • the isolating contact finger 3 closes the two isolating contacts 2 briefly.
  • the Disconnect contact finger 3 shifted in the direction of the right disconnect contact, whereby between the end of the left isolating contact and the tip of the isolating contact finger 3 Form isolating spark 5.
  • the disconnector is open, the Isolating contact finger 3 inside the right isolating contact.
  • To close the Disconnect switch becomes the isolating contact finger in the direction of the left isolating contact shifted, being between the end of the left break contact and the tip of the isolating contact finger in turn form isolating sparks.
  • the insulation layer 7 has a region in the middle between the two isolating contacts 2 an inwardly formed projection 9.
  • the projection points on the inside End two insulating shields 10 running on both sides in the direction of the axis A.
  • the Insulating screens 10 are tubular and have an opening through which the isolating contact finger 3 can be guided.
  • the insulation layer 7, the projection 9 and the insulating screen 10 together form a type of cup around each of the two Isolating contacts 2.
  • a spark 5 that may occur in the direction of the encapsulation 1 can only spread within this cup and do not leave it, because the Do not spark against the field lines and against their original direction of travel can move. This may result in a rollover along the Solid layer between the two isolating contacts 2 can be prevented.
  • the insulation layer 7 advantageously not firmly connected to the encapsulation 1.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Der Trennschalter umfasst im wesentlichen zwei in einer elektrisch leitfähigen, isoliergasgefüllten Kapselung (1) angeordnete Trennkontakte (2) und ein dazwischen verschiebbar angeordneter Trennkontaktfinger (3). Auf der Innenseite der Kapselung (1) ist eine Isolierschicht (7) aufgetragen, welche nach innen gerichtete Vorsprünge (8) aufweist. Die Isolierschicht verhindert das Durchschlagen eines beim Öffnen des Trennschalters unweigerlich entstehenden Trennerfunkens (5) auf die Kapselung (1). Durch zusätzliche Vorsprünge (9) wird der Funken zudem am Ausbreiten in Richtung der Trennkontakte (2) gehindert. <IMAGE>The isolating switch essentially comprises two isolating contacts (2) arranged in an electrically conductive, insulating gas-filled encapsulation (1) and an isolating contact finger (3) displaceably arranged between them. On the inside of the encapsulation (1) an insulating layer (7) is applied, which has inwardly directed projections (8). The insulating layer prevents the breaker spark (5), which inevitably arises when the disconnector is opened, from striking the encapsulation (1). The spark is also prevented from spreading in the direction of the isolating contacts (2) by additional projections (9). <IMAGE>

Description

TECHNISCHES GEBIETTECHNICAL AREA

Bei der Erfindung wird ausgegangen von einem Trennschalter gemäss dem Oberbegriff des Patentanspruchs 1.The invention is based on a disconnector according to the preamble of claim 1.

Ein solcher Trennschalter wird innerhalb gasisolierter Schaltanlagen eingesetzt.Such a circuit breaker is used within gas-insulated switchgear.

STAND DER TECHNIKSTATE OF THE ART

Trennschalter innerhalb gasisolierter Schaltanlagen (GIS) sind dielektrisch kritische Komponenten, da sie kleine Radien beinhalten und deshalb Inhomogenitäten im elektrischen Feldverlauf verursachen.Disconnectors within gas-insulated switchgear (GIS) are dielectric critical Components because they contain small radii and therefore inhomogeneities in the cause electrical field course.

Ein Trennschalter umfasst im wesentlichen eine geerdete Kapselung, zwei von Stützisolatoren im allgemeinen zentral in der Kapselung gehaltene Trennkontakte und einen verschiebbaren Trennkontaktfinger. Der Trennkontaktfinger ist zwischen den Trennkontakten verschiebbar angeordnet. Im geöffneten Zustand des Trennschalters befindet sich der Trennkontaktfinger im wesentlichen innerhalb des einen Trennkontaktes, so dass der Abstand der beiden Trennkontakte die isolierende Trennstrecke bildet. Im geschlossenen Zustand des Trennschalters überbrückt der Trennkontaktfinger die Trennstrecke zwischen den beiden Trennkontakten und bildet so eine leitfähige Verbindung. Beim Öffnen und beim Schliessen des Trennschalters wird unter Bildung von Trennerfunken der Trennkontaktfinger in Richtung des einen bzw. des anderen Trennkontakts verschoben, bis die Trennstrecke vollständig geöffnet bzw. geschlossen ist.A circuit breaker essentially comprises a grounded enclosure, two of Isolators generally isolating contacts and held centrally in the encapsulation a sliding isolating contact finger. The isolating contact finger is between the Disconnect contacts slidably arranged. With the disconnector open the isolating contact finger is essentially within one Isolating contact, so that the distance between the two isolating contacts the isolating Separating distance forms. When the disconnector is closed, the Isolating contact finger forms the isolating distance between the two isolating contacts a conductive connection. When opening and closing the disconnector forming isolating sparks the isolating contact fingers in the direction of one or of the other isolating contact until the isolating path is completely open or closed is.

Die Kapselungen von herkömmlichen Trennschaltern sind insbesondere im Bereich der Trennstrecke vergrösserte ausgebildet, um einen Überschlag eines Trennerfunkens zur Kapselung während des Schaltvorgangs zu verhindern. Die Kapselungen sind im allgemeinen als Gussteile ausgebildet, welche aufwendig und teuer herzustellen sind. The encapsulations of conventional disconnectors are particularly in the area of Separation distance enlarged to a flashover of a isolating spark To prevent encapsulation during the switching process. The encapsulations are in generally designed as castings, which are complex and expensive to manufacture.

Aus DE 1'131'771 ist ein Trennschalter bekannt, bei dem auf der Innenseite der Kapselung eine Feststoffisolierschicht aufgetragen ist. Um das Überbrücken des geöffneten Trennschalters durch Kriechströme entlang der Feststoffisolierschicht auf der Kapselung zu verhindern, ist im Bereich der Mitte der Trennstrecke die Feststoffisolierschicht durch einen vorgewölbte, geerdeten Wulst unterbrochen. Um allfällige Überschläge vom Trennkontaktfinger zum geerdeten Wulst während dem Öffnen des Trennschalters zu verhindern, ist ein zusätzlicher, die Wulst abdeckender rohrförmiger Isolierschirm vorgesehen.From DE 1'131'771 a disconnector is known in which on the inside of the Encapsulation of a solid insulation layer is applied. To bridge the open switch due to leakage currents along the solid insulation layer to prevent the encapsulation is in the area of the middle of the separation distance Solid insulation layer interrupted by a bulging, earthed bead. Around any flashovers from the separating contact finger to the earthed bead during the Preventing the disconnector from opening is an additional one that covers the bead tubular insulating screen provided.

KURZE DARSTELLUNG DER ERFINDUNGSUMMARY OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, einen Trennschalter der eingangs genannten Art zu schaffen, der eine hohe dielektrische Festigkeit aufweist und dennoch einfach und kompakt ausgebildet und kostengünstig herzustellen ist.The invention has for its object a disconnector of the aforementioned To create kind that has a high dielectric strength and yet simple and is compact and inexpensive to manufacture.

Die Aufgabe wird gemäss Patentanspruch 1 dadurch gelöst, dass die Isolierschicht mindestens im Bereich zwischen den Trennkontakten lückenlos auf der Innenseite der Kapselung aufgetragen ist, und dass auf der Isolierschicht mindestens ein Vorsprung angebracht ist. Dadurch kann einerseits der Abstand der Kapselung zu den Trennkontakten verringert werden, da mit der Isolierschicht verhindert wird, dass eine Entladung, welche sich beim Öffnen des Trennschalters in Richtung der Kapselung entwickelt, die Kapselung erreicht und zu einem stromstarken Lichtbogen führen würde. Andererseits kann das Überbrücken des geöffneten Trennschalters durch Kriechströme entlang der Feststoffisolierschicht auf der Kapselung durch den Vorsprung auf der Isolierschicht verhindert werden.The object is achieved according to claim 1 in that the insulating layer at least in the area between the isolating contacts on the inside of the Encapsulation is applied, and that at least one protrusion on the insulating layer is appropriate. As a result, the distance between the encapsulation and the Isolating contacts can be reduced because the insulating layer prevents a Discharge which occurs when the disconnector is opened in the direction of the enclosure developed, the encapsulation reached and would lead to a high-current arc. On the other hand, the open circuit breaker can be bridged by leakage currents along the solid insulation layer on the encapsulation through the protrusion on the Insulating layer can be prevented.

Somit können bei gleichbleibenden maximalen elektrischen Beanspruchungen kompaktere und billigere Trenner verwendet werden.This means that the maximum electrical loads remain the same more compact and cheaper disconnectors can be used.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Bevorzugte Ausführungsbeispiele der Erfindung und die damit erzielbaren weiteren Vorteile werden nachfolgend anhand von Zeichnungne näher erläutert. Hierbei zeigt:

Fig. 1
eine schematische Darstellung einer ersten Ausführungsform des erfindungsgemässen Trennschalters während dem Öffnen des Trennschalters, und
Fig. 2
eine schematische Darstellungen einer zweiten Ausführungsform des erfindungsgemässen Trennschalters im offenen Zustand des Trennschalters.
Preferred exemplary embodiments of the invention and the further advantages which can be achieved thereby are explained in more detail below with reference to drawings. Here shows:
Fig. 1
is a schematic representation of a first embodiment of the disconnector according to the invention while opening the disconnector, and
Fig. 2
a schematic representations of a second embodiment of the disconnector according to the invention in the open state of the disconnector.

WEG ZUR AUSFÜHRUNG DER ERFINDUNGWAY OF CARRYING OUT THE INVENTION

In allen Figuren beziehen sich gleiche Bezugszeichen auf gleichwirkende Teile.In all figures, the same reference numerals refer to parts having the same effect.

Fig. 1 zeigt eine erste Ausführungsform des erfindungsgemässen Trennschalters. In einer mit Isoliergas unter atmospärischem oder erhöhtem Druck gefüllten, metallenen Kapselung 1 befinden sich zwei Trennkontakte 2. Die Trennkontakte sind in Form abgerundeter Schirmelektroden ausgebildet. Zwischen den beiden Trennkontakten ist ein Trennkontaktfinger 3 angeordnet, welcher beweglich ausgebildet ist. Die Trennkontakte 2 sind von Stützisolatoren 4 in der Kapselung 1 zentral gehalten. Auf der Innenseite der Kapselung 1 ist im Bereich der Trennstrecke zwischen den beiden Trennkontakten 2 eine Isolationsschicht 7 angeordnet. Die Isolationsschicht 7 reicht dabei vorteilhafterweise bis in den Bereich der Trennkontakte 2 hinein, jedoch nicht ganz hin bis zum Stützisolator 4, so dass zwischen dem Stützisolator 4 und der Isolationsschicht 7 noch ein freiliegender Kapselungsabschnitt verbleibt. Im Bereich der Trennkontakte 2 weist die Isolationsschicht 7 einen nach innen ausgebildeten Vorsprung 8 aus Isolationsmaterial auf. Mit diesem Vorsprung 8 können allfällig auftretende Überschläge des Trennerfunkens 5 auf die Isolationsschicht am Ausbreiten in Richtung der Kapselung gehindert werden. Die Dicke Il der Isolationsschicht 7 macht weniger als die Hälfte der Länge der gesamten Isolationsstrecke Itot zwischen dem Trennkontakt 2 und der Kapselung 1 aus.1 shows a first embodiment of the disconnector according to the invention. There are two isolating contacts 2 in a metal encapsulation 1 filled with insulating gas under atmospheric or increased pressure. The isolating contacts are designed in the form of rounded shield electrodes. A separating contact finger 3, which is designed to be movable, is arranged between the two isolating contacts. The isolating contacts 2 are held centrally by support insulators 4 in the encapsulation 1. An insulation layer 7 is arranged on the inside of the encapsulation 1 in the region of the isolating section between the two isolating contacts 2. The insulation layer 7 advantageously extends into the area of the isolating contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section remains between the support insulator 4 and the insulation layer 7. In the area of the isolating contacts 2, the insulation layer 7 has an inward projection 8 made of insulation material. With this projection 8, any arcing of the isolating spark 5 that may occur on the insulation layer can be prevented from spreading in the direction of the encapsulation. The thickness I 1 of the insulation layer 7 makes up less than half the length of the entire insulation path I tot between the isolating contact 2 and the encapsulation 1.

Im geschlossenen Zustand des Trennschalters schliesst der Trennkontaktfinger 3 die beiden Trennkontakte 2 kurz. Beim Öffnen des Trennschalters wird der Trennkontaktfinger 3 in Richtung des rechten Trennkontakts verschoben, wobei sich zwischen dem Ende des linken Trennkontakts und der Spitze des Trennkontaktfingers 3 Trennerfunken 5 bilden. Im geöffneten Zustand des Trennschalters liegt der Trennkontaktfinger 3 im Innern des rechten Trennkontakts. Zum Schliessen des Trennschalters wird der Trennkontaktfinger in Richtung des linken Trennkontakts verschoben, wobei sich zwischen dem Ende des linken Trennkontakts und der Spitze des Trennkontaktfingers wiederum Trennerfunken bilden. In the closed state of the disconnector, the isolating contact finger 3 closes the two isolating contacts 2 briefly. When the disconnector is opened, the Disconnect contact finger 3 shifted in the direction of the right disconnect contact, whereby between the end of the left isolating contact and the tip of the isolating contact finger 3 Form isolating spark 5. When the disconnector is open, the Isolating contact finger 3 inside the right isolating contact. To close the Disconnect switch becomes the isolating contact finger in the direction of the left isolating contact shifted, being between the end of the left break contact and the tip of the isolating contact finger in turn form isolating sparks.

Fig. 2 zeigt eine zweite Ausführungsform des erfindungsgemässen Trennschalters. Im Bereich der Mitte zwischen den beiden Trennkontakten 2 weist die Isolationsschicht 7 einen nach Innen ausgebildeten Vorsprung 9 auf. Der Vorsprung weist am inneren Ende zwei beidseits in Richtung der Achse A verlaufende Isolierschirme 10 auf. Die Isolierschirme 10 sind rohrförmig ausgebildet und weisen eine Öffnung auf, durch die der Trennkontaktfinger 3 geführt werden kann. Die Isolationsschicht 7, der Vorsprung 9 und der Isolierschirm 10 bilden zusammen eine Art Becher um jeweils einen der beiden Trennkontakte 2. Ein allfällig in Richtung der Kapselung 1 auftretender Funken 5 kann sich nur innnerhalb dieses Bechers ausbreiten und diesen nicht verlassen, da sich der Funken nicht entgegen der Feldlinien und entgegen seiner ursprünglichen Laufrichtung bewegen kann. Dadurch kann gegebenenfalls ein Überschlag entlang der Feststoffschicht zwischen den beiden Trennkontakten 2 verhindert werden.2 shows a second embodiment of the disconnector according to the invention. in the The insulation layer 7 has a region in the middle between the two isolating contacts 2 an inwardly formed projection 9. The projection points on the inside End two insulating shields 10 running on both sides in the direction of the axis A. The Insulating screens 10 are tubular and have an opening through which the isolating contact finger 3 can be guided. The insulation layer 7, the projection 9 and the insulating screen 10 together form a type of cup around each of the two Isolating contacts 2. A spark 5 that may occur in the direction of the encapsulation 1 can only spread within this cup and do not leave it, because the Do not spark against the field lines and against their original direction of travel can move. This may result in a rollover along the Solid layer between the two isolating contacts 2 can be prevented.

Um thermische Ausdehnungen ausgleichen zu können, ist die Isolationsschicht 7 vorteilhafterweise nicht fest mit der Kapselung 1 verbunden.In order to be able to compensate for thermal expansions, the insulation layer 7 advantageously not firmly connected to the encapsulation 1.

BEZEICHNUNGSLISTENAME LIST

11
Kapselungencapsulation
22
Trennkontaktisolating contact
33
TrennkontaktfingerIsolating contact finger
44
Stützisolatorsupport insulator
55
Trennerfunken, LichtbogenIsolating spark, arc
66
Isoliergasinsulating
77
Isolierschichtinsulating
8, 98, 9
Vorsprung, BarriereHead start, barrier
1010
Isolierschirminsulating screen
Il I l
Dicke der IsolierschichtInsulation layer thickness
Itot I dead
Länge der IsolierstreckeLength of the insulation section

Claims (5)

Trennschalter, enthaltend mindestens zwei Trennkontakte (2), mindestens einen zwischen den Trennkontakten (2) entlang einer Achse verschiebbar angeordneten Trennkontaktfinger (3), welcher im geöffneten Zustand des Trennschalters im Innern eines der Trennkontakte (2) angeordnet ist, eine teilweise auf der Innenseite der Kapselung (1) aufgetragene Isolierschicht (7), dadurch gekennzeichnet, dass die Isolierschicht (7) mindestens im Bereich zwischen den Trennkontakten (2) lückenlos auf der Innenseite der Kapselung (1) aufgetragen ist, und dass auf der Isolierschicht (7) mindestens ein Vorsprung (8, 9) vorgesehen ist. Isolating switch containing at least two isolating contacts (2), at least one isolating contact finger (3) arranged between the isolating contacts (2) displaceable along an axis, which is arranged inside one of the isolating contacts (2) when the isolating switch is open, an insulating layer (7) partially applied on the inside of the encapsulation (1), characterized in that the insulating layer (7) is applied at least in the area between the isolating contacts (2) on the inside of the encapsulation (1), and that at least one projection (8, 9) is provided on the insulating layer (7). Trennschalter nach Anspruch 1, dadurch gekennzeichnet, dass die Dicke (Il) der Isolierschicht (7) höchstens die Hälfte der Länge (Itot) der gesamten Isolationsstrecke zwischen den Trennkontakten (2) und der Kapselung (1) beträgt. Disconnector according to claim 1, characterized in that the thickness (I l ) of the insulating layer (7) is at most half the length (I tot ) of the entire insulation distance between the isolating contacts (2) and the encapsulation (1). Trennschalter nach Anspruch 2, dadurch gekennzeichnet, dass mindestens ein Vorsprung (8) im Bereich eines Randes der Isolierschicht (7) angeordnet ist. Disconnector according to claim 2, characterized in that at least one projection (8) is arranged in the region of an edge of the insulating layer (7). Trennschalter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens ein Vorsprung (9) im Bereich zwischen den Trennkontakten (2) angeordnet ist, und dass der Vorsprung (9) im wesentlichen scheibenförmig mit einer zentral angeordneten Durchführungsöffnung ausgebildet ist. Disconnector according to one of claims 1 to 3, characterized in that at least one projection (9) is arranged in the area between the isolating contacts (2), and that the projection (9) is essentially disc-shaped with a centrally arranged through opening. Trennschalter nach Anspruch 4, dadurch gekennzeichnet, dass am Vorsprung (9) im Bereich der Durchführungsöffnung beidseits ein im wesentlichen parallel zur Achse verlaufender, rohrförmiger Isolierschirm (10) angeordnet ist. Disconnector according to claim 4, characterized in that On the projection (9) in the area of the lead-through opening on both sides there is a tubular insulating screen (10) which runs essentially parallel to the axis.
EP00810793A 2000-09-04 2000-09-04 Disconnecting switch Expired - Lifetime EP1187157B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP00810793A EP1187157B1 (en) 2000-09-04 2000-09-04 Disconnecting switch
DE50013696T DE50013696D1 (en) 2000-09-04 2000-09-04 disconnectors
AU63612/01A AU780289B2 (en) 2000-09-04 2001-08-23 Disconnector
KR1020010053155A KR100771031B1 (en) 2000-09-04 2001-08-31 Disconnector
US09/942,916 US6506067B2 (en) 2000-09-04 2001-08-31 Disconnector
JP2001267073A JP2002133980A (en) 2000-09-04 2001-09-04 Disconnector
CNB011412380A CN1186792C (en) 2000-09-04 2001-09-04 Circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00810793A EP1187157B1 (en) 2000-09-04 2000-09-04 Disconnecting switch

Publications (2)

Publication Number Publication Date
EP1187157A1 true EP1187157A1 (en) 2002-03-13
EP1187157B1 EP1187157B1 (en) 2006-11-02

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Family Applications (1)

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EP00810793A Expired - Lifetime EP1187157B1 (en) 2000-09-04 2000-09-04 Disconnecting switch

Country Status (7)

Country Link
US (1) US6506067B2 (en)
EP (1) EP1187157B1 (en)
JP (1) JP2002133980A (en)
KR (1) KR100771031B1 (en)
CN (1) CN1186792C (en)
AU (1) AU780289B2 (en)
DE (1) DE50013696D1 (en)

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KR20020018958A (en) 2002-03-09
JP2002133980A (en) 2002-05-10
AU780289B2 (en) 2005-03-17
KR100771031B1 (en) 2007-10-29
US20020028594A1 (en) 2002-03-07
DE50013696D1 (en) 2006-12-14
AU6361201A (en) 2002-03-07
CN1345079A (en) 2002-04-17
CN1186792C (en) 2005-01-26
EP1187157B1 (en) 2006-11-02
US6506067B2 (en) 2003-01-14

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