EP0895643A1 - Ensemble interrupteur d'un sectionneur de puissance haute tension - Google Patents

Ensemble interrupteur d'un sectionneur de puissance haute tension

Info

Publication number
EP0895643A1
EP0895643A1 EP97923755A EP97923755A EP0895643A1 EP 0895643 A1 EP0895643 A1 EP 0895643A1 EP 97923755 A EP97923755 A EP 97923755A EP 97923755 A EP97923755 A EP 97923755A EP 0895643 A1 EP0895643 A1 EP 0895643A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
interrupter unit
circuit breaker
insulating material
insulating
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
EP97923755A
Other languages
German (de)
English (en)
Other versions
EP0895643B1 (fr
Inventor
Volker Lehmann
Joachim Gericke
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0895643A1 publication Critical patent/EP0895643A1/fr
Application granted granted Critical
Publication of EP0895643B1 publication Critical patent/EP0895643B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7061—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by use of special mounting means
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle

Definitions

  • the invention relates to an interrupter unit of a high-voltage circuit breaker with at least two arcing contact pieces and a hollow cylindrical insulating material, which is used to blow an arc that may be burning between the arcing contact pieces and which is attached to a cylindrical component of the interrupter unit.
  • Such a breaker unit is known for example from FR 2 491 675 AI. According to the construction there, an insulating material nozzle body is held in a metallic cylindrical component of the interrupter unit.
  • the present invention is therefore based on the object of designing an interrupter unit of the type mentioned at the outset in such a way that the insulating material nozzle is reliably fastened with the simplest possible means.
  • the insulating material nozzle has an internal or external thread screwed to the cylindrical component and in that a connector which can be attached to the interrupter unit is provided and which supports the nozzle on its lateral surface opposite the thread supports and which has a knurling to secure the insulating nozzle against rotation on its side facing the insulating nozzle.
  • the nozzle according to the invention thus fulfills two tasks. On the one hand, it supports the insulating nozzle on the side opposite the thread, so that the insulating nozzle cannot be pulled out of the thread even by high mechanical and thermal loads. On the other hand, due to its knurling on its side facing the insulating material nozzle, the socket prevents the insulating material nozzle from twisting and thus preventing the nozzle from being unscrewed from the thread.
  • the construction can, on the one hand, be designed in such a way that the insulating material nozzle has an internal thread that is screwed onto a component of the interrupter unit and that the socket is pushed onto the outside of the insulating material nozzle. The nozzle then has knurling on its inside.
  • Another embodiment of the invention provides that the insulating material nozzle has an outer thread on its outer lateral surface, which is screwed into a cylindrical component of the interrupter unit and that the connecting piece is inserted into the insulating material nozzle. The nozzle then has knurling on its outer surface.
  • the dimensions of the connecting piece and the insulating nozzle are matched to one another in such a way that the knurling is pressed into the material of the nozzle when it is pushed or pushed axially onto or into the insulating nozzle.
  • the nozzle is then connected to the interrupter unit and cannot be rotated.
  • connection piece is connected to a flange which is connected to the cylinder.
  • Lindrischen component of the interrupter unit is rotatably connected.
  • This flange can be connected to the cylindrical component of the interrupter unit, for example, by means of screws distributed over its circumference.
  • the cylindrical component of the interrupter unit can be formed, for example, by a floor of a compression or heating gas space.
  • FIG. 1 shows schematically a longitudinal section through an interrupter unit
  • FIG. 2 shows a side view of the connecting piece with the flange.
  • the interrupter unit has two arcing contact pieces 1, 2 which face each other coaxially and two continuous current contact pieces 12, 13, each concentrically surrounding one of the arcing contact pieces.
  • the first arcing contact 1 is designed as a tulip contact and is driven in the course of an opening movement in the direction of arrow 14.
  • an arc 4 burns between the arcing contact pieces 1, 2 and heats up the extinguishing gas, for example SF 6, in its area of influence.
  • This quenching gas flows at least partially through the duct 15 into the heating gas space 16, where it is initially stored and from where it flows back to the arc as soon as the quenching gas pressure drops there. This is normally the case when the current to be switched is at zero current.
  • the extinguishing gas flowing back then blows the arc 4 and supports the extinguishing or the dielectric re-solidification of the switching path between the arcing contact pieces 1, 2.
  • an insulating gas nozzle 3 is provided which surrounds the arc.
  • the Isolierstoffduse 3 is very much accelerated with the drivable first contact piece 1 when switching off in the direction of arrow 14.
  • Isolierstoffduse be particularly stable and secure on a component connected to the drive of the switch, for example the cylindrical flange 5.
  • the Isolierstoffduse 3 is screwed into the flange 5 and for this purpose has an external thread which engages in an internal thread of the flange 5.
  • the connector 7 is pushed into the insulating material nozzle and supports the insulating material nozzle against radial deformation from the inside.
  • the connector 7 is connected to a flange 11 which radially covers the nozzle body and is connected to the flange 5 by means of screws 17. This ensures that the nozzle 7 is not rotatable.
  • the nozzle 7 has on its outer lateral surface a knurling 10 which is pressed into the nozzle body 3 and thus a twisting of the nozzle body 3 in the thread 6 prevented.
  • the nozzle 7 and the flange 11 are advantageously made of a metal, for example aluminum.
  • the interrupter unit is enclosed in a gas-tight manner by an insulating material housing 18.

Landscapes

  • Circuit Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Un ensemble interrupteur d'un sectionneur de puissance haute tension comporte deux pièces de contact d'arc (1, 2), entre lesquelles s'allume un arc (4) en cas de coupure. Une buse isolée (3) est prévue pour le soufflage magnétique de l'arc (4). Cette buse isolée (3) est vissée dans un composant cylindrique (5) de l'ensemble interrupteur à l'aide d'un filetage. Pour assujettir le vissage, un embout (7) se monte dans ou éventuellement sur la buse isolée (3) et présente un moletage (10) insérable dans ladite buse.
EP97923755A 1996-04-22 1997-04-22 Ensemble interrupteur d'un sectionneur de puissance haute tension Expired - Lifetime EP0895643B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29607660U DE29607660U1 (de) 1996-04-22 1996-04-22 Unterbrechereinheit eines Hochspannungs-Leistungsschalters
DE29607660U 1996-04-22
PCT/DE1997/000824 WO1997040507A1 (fr) 1996-04-22 1997-04-22 Ensemble interrupteur d'un sectionneur de puissance haute tension

Publications (2)

Publication Number Publication Date
EP0895643A1 true EP0895643A1 (fr) 1999-02-10
EP0895643B1 EP0895643B1 (fr) 1999-09-15

Family

ID=8023224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923755A Expired - Lifetime EP0895643B1 (fr) 1996-04-22 1997-04-22 Ensemble interrupteur d'un sectionneur de puissance haute tension

Country Status (5)

Country Link
US (1) US6040970A (fr)
EP (1) EP0895643B1 (fr)
JP (1) JP3650129B2 (fr)
DE (2) DE29607660U1 (fr)
WO (1) WO1997040507A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745550A1 (de) * 1997-10-10 1999-04-15 Siemens Ag Druckgasleistungsschalter
DE29803232U1 (de) * 1998-02-18 1998-04-16 Siemens Ag Hochspannungsleistungsschalter mit einem Isolierstoffkörper
DE29803380U1 (de) * 1998-02-20 1998-04-23 Siemens AG, 80333 München Hochspannungsleistungsschalter mit einem Isolierstoffkörper
DE19928080C5 (de) * 1999-06-11 2006-11-16 Siemens Ag Hochspannungsleistungsschalter mit einem Abströmkanal
FR2809531B1 (fr) * 2000-05-25 2002-07-05 Alstom Buse isolante de soufflage pour disjoncteur
EP1675144A1 (fr) * 2004-12-23 2006-06-28 ABB Technology AG Disjoncteur à haute puissance avec conducteur pour les courants court-circuits résistant à des arcs électriques
ATE418152T1 (de) * 2006-01-31 2009-01-15 Abb Technology Ag Schaltkammer für einen gasisolierten hochspannungsschalter
DE102006034742A1 (de) * 2006-07-24 2008-01-31 Siemens Ag Isolierstoffdüse, welche ein erstes Material und ein zweites Material aufweist
DE102009009451A1 (de) 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Schaltgeräteanordnung mit einer Schaltstrecke
JP5242461B2 (ja) * 2009-03-06 2013-07-24 株式会社東芝 ガス遮断器
DE102012202408A1 (de) * 2012-02-16 2013-08-22 Siemens Aktiengesellschaft Schaltgeräteanordnung
TW201442051A (zh) * 2013-03-08 2014-11-01 Hitachi Ltd 氣體斷路器
DE102015205388A1 (de) 2015-03-25 2016-09-29 Siemens Aktiengesellschaft Isolierdüse und elektrische Schalteinrichtung mit der Isolierdüse
KR101697584B1 (ko) * 2015-04-09 2017-01-18 엘에스산전 주식회사 초고압 차단기의 노즐 구조
FR3053524B1 (fr) * 2016-06-29 2018-08-10 General Electric Technology Gmbh Buse a soufflage d'arc electrique et disjoncteur comprenant une telle buse
WO2018015436A1 (fr) * 2016-07-21 2018-01-25 Abb Schweiz Ag Dispositif de commutation haute tension isolé au gaz avec buse principale améliorée
EP3618088A1 (fr) * 2018-08-30 2020-03-04 ABB Schweiz AG Buse pour disjoncteur haute ou moyenne tension

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208035C3 (de) * 1972-02-17 1979-07-26 Siemens Ag, 000 Berlin Und 8000 Muenchen Kontaktsystem für Druckgasschalter
FR2491675A1 (fr) * 1980-10-07 1982-04-09 Alsthom Atlantique Dispositif de coupure a double mouvement des contacts
DE3822410C1 (en) * 1988-07-01 1989-10-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De Sulphur hexa:fluoride compressed gas switch - has thread between nozzle and cylinder to better withstand force and temp. loading without enlargement of actual mass of nozzle
DE19519992C2 (de) * 1995-05-24 2002-03-21 Siemens Ag Schaltstrecke für einen mit einem Löschgas arbeitenden Hochspannungs-Leistungsschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9740507A1 *

Also Published As

Publication number Publication date
DE29607660U1 (de) 1996-06-20
WO1997040507A1 (fr) 1997-10-30
DE59700450D1 (de) 1999-10-21
JP3650129B2 (ja) 2005-05-18
EP0895643B1 (fr) 1999-09-15
US6040970A (en) 2000-03-21
JP2000509544A (ja) 2000-07-25

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