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EP1187157B1 - Disconnecting switch - Google Patents

Disconnecting switch Download PDF

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Publication number
EP1187157B1
EP1187157B1 EP00810793A EP00810793A EP1187157B1 EP 1187157 B1 EP1187157 B1 EP 1187157B1 EP 00810793 A EP00810793 A EP 00810793A EP 00810793 A EP00810793 A EP 00810793A EP 1187157 B1 EP1187157 B1 EP 1187157B1
Authority
EP
European Patent Office
Prior art keywords
isolating
projection
encapsulation
contacts
isolating contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00810793A
Other languages
German (de)
French (fr)
Other versions
EP1187157A1 (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

  • Such a disconnector is used within gas-insulated switchgear.
  • Isolation switches within gas-insulated switchgear are dielectrically critical components because they contain small radii and therefore cause inhomogeneities in the electric field characteristic.
  • a circuit breaker essentially comprises a grounded enclosure, two isolating contacts held centrally by support insulators, generally in the enclosure, and a slidable isolating contact finger.
  • the Trenn brieflyfinger is slidably disposed between the isolating contacts.
  • the Trenn brieflyfinger In the open state of the circuit breaker is the Trenn Vietnamesefinger substantially within the one isolating contact, so that the distance between the two isolating contacts forms the insulating separation path.
  • the isolating contact finger bridges the isolating distance between the two isolating contacts, thus forming a conductive connection.
  • the enclosures of conventional circuit breakers are formed enlarged in particular in the region of the separation section to prevent a rollover of a separator spark for encapsulation during the switching operation.
  • the encapsulations are generally designed as castings, which are complicated and expensive to produce.
  • the invention has for its object to provide a circuit breaker of the type mentioned, which has a high dielectric strength and yet simple and compact and inexpensive to manufacture.
  • the object is achieved according to claim 1, characterized in that the insulating layer is applied at least in the area between the isolating contacts gapless on the inside of the enclosure, and that on the insulating layer at least one projection is attached.
  • the distance between the encapsulation and the isolating contacts can be reduced because the insulating layer prevents a discharge, which develops during the opening of the isolating switch in the direction of the encapsulation, from reaching the encapsulation and leading to a high-current arc.
  • the bridging of the opened circuit breaker can be prevented by leakage currents along the solid insulating layer on the encapsulation by the projection on the insulating layer.
  • Fig. 1 shows a first embodiment of the inventive circuit breaker.
  • the isolating contacts are in the form of rounded shielding electrodes.
  • a separating contact finger 3 is arranged, which is designed to be movable.
  • the release contacts 2 are held centrally by post insulators 4 in the enclosure 1.
  • an insulating layer 7 is arranged in the region of the separation distance between the two isolating contacts 2.
  • the insulation layer 7 advantageously extends into the region of the release contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section still remains between the support insulator 4 and the insulation layer 7.
  • the insulating layer 7 has an inwardly formed projection 8 of insulating material. With this projection 8 any occurring flashovers of Trennerfunkens 5 can be prevented from spreading to the insulating layer in the direction of encapsulation.
  • the thickness l i of the insulating layer 7 makes up less than half the length of the entire insulation gap l dead between the isolating contact 2 and the encapsulation 1.
  • the isolating contact finger 3 closes the two isolating contacts 2 briefly.
  • the isolating contact finger 3 is displaced in the direction of the right isolating contact, whereby separator spark 5 is formed between the end of the left isolating contact and the tip of the isolating contact finger 3.
  • the Trennnapsfinger 3 In the open state of the circuit breaker is the Trennmindfinger 3 inside the right isolating contact.
  • the isolating contact finger is displaced in the direction of the left isolating contact, with separator sparking again forming between the end of the left isolating contact and the tip of the isolating contact finger.
  • Fig. 2 shows a second embodiment of the inventive circuit breaker.
  • the insulating layer 7 has an inwardly formed projection 9.
  • the projection has at the inner end two on both sides in the direction of the axis A extending insulating 10 on.
  • the insulating screens 10 are tubular and have an opening through which the separating contact finger 3 can be guided.
  • the insulation layer 7, the projection 9 and the insulating screen 10 together form a kind of cup around one of the two isolating contacts 2. Any spark occurring in the direction of the enclosure 1 5 can only spread within this cup and not leave it, since the spark can not move against the field lines and against its original direction. As a result, if necessary, a flashover along the solids layer between the two separating contacts 2 can be prevented.
  • the insulating layer 7 is advantageously not firmly connected to the enclosure 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)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Bei der Erfindung wird ausgegangen von einem Trennschalter gemäss dem Oberbegriff des Patentanspruchs 1.In the invention, it is assumed that a circuit breaker according to the preamble of patent claim 1.

Ein solcher Trennschalter wird innerhalb gasisolierter Schaltanlagen eingesetzt.Such a disconnector 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.Isolation switches within gas-insulated switchgear (GIS) are dielectrically critical components because they contain small radii and therefore cause inhomogeneities in the electric field characteristic.

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 isolating contacts held centrally by support insulators, generally in the enclosure, and a slidable isolating contact finger. The Trennkontaktfinger is slidably disposed between the isolating contacts. In the open state of the circuit breaker is the Trennkontaktfinger substantially within the one isolating contact, so that the distance between the two isolating contacts forms the insulating separation path. When the circuit breaker is closed, the isolating contact finger bridges the isolating distance between the two isolating contacts, thus forming a conductive connection. When opening and closing the circuit breaker is moved to form separator spark the Trennkontaktfinger in the direction of one or the other isolating contact until the separation line is fully opened or closed.

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 enclosures of conventional circuit breakers are formed enlarged in particular in the region of the separation section to prevent a rollover of a separator spark for encapsulation during the switching operation. The encapsulations are generally designed as castings, which are complicated and expensive to produce.

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 circuit breaker is known in which on the inside of the enclosure a Feststoffisolierschicht is applied. In order to prevent bridging of the opened circuit breaker by leakage currents along the solid insulating layer on the encapsulation, in the region of the middle of the isolating section, the solid insulating layer is interrupted by a bulging, grounded bead. In order to prevent any flashovers from the break contact finger to the grounded bead during opening of the circuit breaker, an additional, the bead-covering tubular insulating shield is provided.

KURZE DARSTELLUNG DER ERFINDUNGBRIEF SUMMARY 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 to provide a circuit breaker of the type mentioned, which has a high dielectric strength and yet simple and 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, characterized in that the insulating layer is applied at least in the area between the isolating contacts gapless on the inside of the enclosure, and that on the insulating layer at least one projection is attached. As a result, on the one hand, the distance between the encapsulation and the isolating contacts can be reduced because the insulating layer prevents a discharge, which develops during the opening of the isolating switch in the direction of the encapsulation, from reaching the encapsulation and leading to a high-current arc. On the other hand, the bridging of the opened circuit breaker can be prevented by leakage currents along the solid insulating layer on the encapsulation by the projection on the insulating layer.

Somit können bei gleichbleibenden maximalen elektrischen Beanspruchungen kompaktere und billigere Trenner verwendet werden.Thus, with consistent maximum electrical stresses, more compact and cheaper separators 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 embodiments of the invention and the advantages that can be achieved therewith are explained in more detail below with reference to Zeichne. Hereby shows:
Fig. 1
a schematic representation of a first embodiment of the inventive circuit breaker during the opening of the circuit breaker, and
Fig. 2
a schematic representation of a second embodiment of the inventive circuit breaker in the open state of the circuit breaker.

WEG ZUR AUSFÜHRUNG DER ERFINDUNGWAY FOR CARRYING OUT THE INVENTION

In allen Figuren beziehen sich gleiche Bezugszeichen auf gleichwirkende Teile. 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 li der Isolationsschicht 7 macht weniger als die Hälfte der Länge der gesamten Isolationsstrecke ltot zwischen dem Trennkontakt 2 und der Kapselung 1 aus.In all figures, like reference numerals refer to like-acting parts. Fig. 1 shows a first embodiment of the inventive circuit breaker. In a metal enclosure 1 filled with insulating gas under atmospheric or elevated pressure, there are two isolating contacts 2. The isolating contacts are in the form of rounded shielding electrodes. Between the two isolating contacts a separating contact finger 3 is arranged, which is designed to be movable. The release contacts 2 are held centrally by post insulators 4 in the enclosure 1. On the inside of the enclosure 1, an insulating layer 7 is arranged in the region of the separation distance between the two isolating contacts 2. The insulation layer 7 advantageously extends into the region of the release contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section still remains between the support insulator 4 and the insulation layer 7. In the region of the isolating contacts 2, the insulating layer 7 has an inwardly formed projection 8 of insulating material. With this projection 8 any occurring flashovers of Trennerfunkens 5 can be prevented from spreading to the insulating layer in the direction of encapsulation. The thickness l i of the insulating layer 7 makes up less than half the length of the entire insulation gap l dead 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.When the circuit breaker is closed, the isolating contact finger 3 closes the two isolating contacts 2 briefly. When the circuit breaker is opened, the isolating contact finger 3 is displaced in the direction of the right isolating contact, whereby separator spark 5 is formed between the end of the left isolating contact and the tip of the isolating contact finger 3. In the open state of the circuit breaker is the Trennkontaktfinger 3 inside the right isolating contact. To close the circuit breaker, the isolating contact finger is displaced in the direction of the left isolating contact, with separator sparking again forming between the end of the left isolating contact and the tip of the isolating contact finger.

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.Fig. 2 shows a second embodiment of the inventive circuit breaker. In the region of the middle between the two isolating contacts 2, the insulating layer 7 has an inwardly formed projection 9. The projection has at the inner end two on both sides in the direction of the axis A extending insulating 10 on. The insulating screens 10 are tubular and have an opening through which the separating contact finger 3 can be guided. The insulation layer 7, the projection 9 and the insulating screen 10 together form a kind of cup around one of the two isolating contacts 2. Any spark occurring in the direction of the enclosure 1 5 can only spread within this cup and not leave it, since the spark can not move against the field lines and against its original direction. As a result, if necessary, a flashover along the solids layer between the two separating 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 compensate for thermal expansions, the insulating layer 7 is advantageously not firmly connected to the enclosure 1.

BEZEICHNUNGSLISTENAME LIST

11
Kapselungencapsulation
22
Trennkontaktisolating contact
33
TrennkontaktfingerIsolating contact finger
44
Stützisolatorsupport insulator
55
Trennerfunken, LichtbogenSeparator spark, arc
66
Isoliergasinsulating
77
Isolierschichtinsulating
8, 98, 9
Vorsprung, BarriereLead, barrier
1010
Isolierschirminsulating screen
Ii I i
Dicke der IsolierschichtThickness of the insulating layer
Itot I'm dead
Länge der IsolierstreckeLength of the insulating section

Claims (5)

  1. Disconnector, containing in an encapsulation (1)
    - at least two isolating contacts (2),
    - at least one isolating contact finger (3) which is arranged such that it can be moved along an axis between the isolating contacts (2) and which, when the disconnector is open, is arranged in the interior of one of the isolating contacts (2), and when the disconnector is closed bridges the air gap between the isolating contacts, and
    - an insulation coating which is applied to part of the inside of the encapsulation (1),
    - characterized in that
    - the insulation coating (7) is applied without any gaps to the inside of the encapsulation (1), at least in the region between the isolating contacts (2), and in that
    - at least one projection (8, 9) is provided on the insulation coating (7).
  2. Disconnector according to Claim 1, characterized in that
    - the thickness (II) of the insulation coating (7) is at most equal to half the length (Itot) of the entire isolation gap between the isolating contacts (2) and the encapsulation (1).
  3. Disconnector according to Claim 2, characterized in that
    - at least one projection (8) is arranged in the region of one edge of the insulation coating (7).
  4. Disconnector according to one of Claims 1 to 3, characterized in that
    - at least one projection (9) is arranged in the region between the isolating contacts (2), and in that
    - the projection (9) is essentially in the form of a disc with a centrally arranged through-opening.
  5. Disconnector according to Claim 4, characterized in that
    - a tubular insulation shield (10), running essentially parallel to the axis, is arranged on the projection (9) in the region of the through-opening.
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 EP1187157A1 (en) 2002-03-13
EP1187157B1 true EP1187157B1 (en) 2006-11-02

Family

ID=8174887

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4578344B2 (en) * 2005-07-19 2010-11-10 三菱電機株式会社 Gas insulated switchgear
DE102012223569B4 (en) * 2012-12-18 2014-08-14 Siemens Aktiengesellschaft X-ray tube
CN104362036B (en) * 2014-10-31 2017-06-16 平高集团有限公司 Switching device tank body and arc-chutes, the high-tension switch gear using the tank body
CN104362035B (en) * 2014-10-31 2017-10-10 平高集团有限公司 A kind of high-tension switch gear and its arc-chutes, tank body
CN114724882B (en) * 2022-03-16 2024-07-23 河北邯峰发电有限责任公司 High-frequency power supply high-voltage isolating switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131771B (en) * 1959-02-26 1962-06-20 Licentia Gmbh Partially insulated push disconnector of the encapsulated design
DE1247505B (en) * 1961-04-04 1967-08-17 Licentia Gmbh Arrangement to increase the insulating capacity of an insulating material wall that is electrically stressed along the surface
US3812314A (en) * 1971-08-23 1974-05-21 Gen Electric High power electrical bushing having a vacuum switch encapsulated therein
DE2739811C2 (en) * 1977-09-03 1982-05-13 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Electrical switching device with at least one switch designed as a vacuum interrupter
US4413166A (en) * 1981-03-19 1983-11-01 Westinghouse Electric Corp. Disconnect switch

Also Published As

Publication number Publication date
JP2002133980A (en) 2002-05-10
US6506067B2 (en) 2003-01-14
CN1345079A (en) 2002-04-17
DE50013696D1 (en) 2006-12-14
AU6361201A (en) 2002-03-07
KR100771031B1 (en) 2007-10-29
KR20020018958A (en) 2002-03-09
AU780289B2 (en) 2005-03-17
EP1187157A1 (en) 2002-03-13
US20020028594A1 (en) 2002-03-07
CN1186792C (en) 2005-01-26

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