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EP0830700B1 - Element isolant pour appareils haute tension - Google Patents

Element isolant pour appareils haute tension Download PDF

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Publication number
EP0830700B1
EP0830700B1 EP96919580A EP96919580A EP0830700B1 EP 0830700 B1 EP0830700 B1 EP 0830700B1 EP 96919580 A EP96919580 A EP 96919580A EP 96919580 A EP96919580 A EP 96919580A EP 0830700 B1 EP0830700 B1 EP 0830700B1
Authority
EP
European Patent Office
Prior art keywords
insulating component
grooves
ridges
component
component according
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
EP96919580A
Other languages
German (de)
English (en)
Other versions
EP0830700A1 (fr
Inventor
Frank Reincke
Norbert Trapp
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0830700A1 publication Critical patent/EP0830700A1/fr
Application granted granted Critical
Publication of EP0830700B1 publication Critical patent/EP0830700B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/7023—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
    • H01H33/703—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 having special gas flow directing elements, e.g. grooves, extensions
    • 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
    • H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties

Definitions

  • the invention relates to an insulating component of a High-voltage switching device, in particular for use in gas-insulated systems, see for example EP-A-0 191 465.
  • Such a component is also from the DE-PS 26 26 855 known.
  • Such insulating material components are used, for example, in electrical High-voltage switches, especially in high-voltage circuit breakers as a spacer or as a nozzle for guidance of insulating gas.
  • Such components are used in encapsulated high-voltage switchgear for example as a support for busbars or used as bushings.
  • the surface area of the component a weakly conductive fabric for derivation embedded by surface charges.
  • the present invention is based on the object an insulating component of the type mentioned to create the high dielectric with low manufacturing costs Withstands stress permanently.
  • the object is achieved in that the Surface of the component at least in a dielectric stressed area with sharp-edged grooves or webs with a profile depth of at least 100 ⁇ m.
  • An advantageous embodiment of the invention provides that at least one region that is particularly stressed in terms of dielectric the surface has a profile depth of at least 200 microns.
  • the profile depth allows the surface of the component no displacement currents occur, the electrical arcing could initiate.
  • An advantageous embodiment of the invention provides that the grooves or webs are produced by machining.
  • the component can, for example, after it has been shaped by casting, sintering or extrusion, in which dielectric stressed area by milling or turning can be reworked.
  • a depth of the grooves has proven to be particularly advantageous of more than 200 ⁇ m.
  • the grooves can advantageously concentric to each other or in the form of a spiral be arranged.
  • the grooves or webs can advantageously be rectangular in cross section or be sawtooth-shaped.
  • Such a profile is easy to turn or mill.
  • the invention also relates to a method for Manufacture of an insulating component for high-voltage devices, in which the component after the formation in at least one dielectric particularly stressed area of its Grooving the surface by machining or is processed so that webs remain.
  • the component in a casting process is manufactured, and that the mold in the dielectric particularly stressed area has grooves or webs, the corresponding complementary structures on the Create the surface of the component.
  • An insulating component is often included after shaping uniform surface quality before and then after Process according to the invention in the dielectric particularly stressed Areas of its surface to be reworked.
  • the figure shows a circuit breaker in the closed state.
  • Two arcing contact pieces are coaxial with each other 1, 2 and two continuous current contact pieces 3, 4 opposite, which are in engagement with each other when switched on.
  • Electrical connections of the switch are designated 11, 12 and shown only schematically.
  • the drivable arcing contact piece 1 is used to switch off as well as with this by means of a compression cylinder 5 connected continuous current contact piece 3 in the figure moved to the left. This is done by a not shown Switch drive.
  • the insulating nozzle 9 which consists of PTFE, from the fixed arcing contact 2.
  • the insulating material nozzle 9 is with the compression cylinder 5 in the area of continuous current contact 3 connected.
  • the end face 10 is the Insulating dielectric dielectric through the electrical field between the arcing contact pieces 1, 2 are particularly stressed.
  • essential concentric grooves e.g. by overturning a spiral groove
  • Depth of about 1 mm introduced, with a between the grooves about 1 mm wide web with a rectangular cross section is.
  • An arrangement according to the invention proves to be dielectric safer than a corresponding one with a production-related component with better surface quality throughout.
  • a double nozzle switch is shown in FIG two fixed nozzle-shaped contact pieces 13, 14, the in the on state by a bridging contact piece 15 are conductively connected to each other.
  • It is a compression device for an extinguishing gas consisting of a stationary one Compression piston 16 and a movable compression cylinder 17 provided.
  • the compression cylinder is in the off state withdrawn so far that its bottom 18 in the separation distance between the fixed contact pieces 13, 14 is located and exposed there to the electric field is.
  • the bottom 18 has its in the off state Switching side facing a sawtooth in cross section Structure based on the removal of surface charges enables.

Landscapes

  • Circuit Breakers (AREA)
  • Insulating Bodies (AREA)
  • Insulators (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (9)

  1. Elément (9) isolant d'un appareil de commutation haute tension, à utiliser notamment dans des installations isolées par gaz,
    caractérisé par un dispositif pour limiter le potentiel des charges de surface, dispositif qui comporte, sur la surface de l'élément (9), au moins dans une région (10) soumise à de fortes sollicitations diélectriques, des rainures ou nervures à arêtes vives, d'une profondeur de profil d'au moins 100 µm.
  2. Elément isolant suivant la revendication 1, caractérisé en ce qu'au moins une région (10) de la surface soumise à de fortes sollicitations diélectriques est dotée d'une profondeur de profil d'au moins 200 µm.
  3. Elément isolant suivant la revendication 1 ou 2, caractérisé en ce que les rainures ou nervures sont produites par usinage par enlèvement de matière.
  4. Elément isolant suivant la revendication 1, 2 ou 3, caractérisé en ce que, pour un élément (9) à symétrie de révolution, les rainures sont disposées de façon essentiellement concentrique les unes par rapport aux autres, ou sous la forme d'une spirale.
  5. Elément isolant suivant l'une des revendications 1 à 4, caractérisé en ce que les rainures ou nervures ont une section transversale rectangulaire.
  6. Elément isolant suivant l'une des revendications 1 à 4, caractérisé en ce que les rainures ou nervures ont une forme de section transversale en dents de scie.
  7. Elément isolant suivant l'une des revendications 1 à 6, caractérisé en ce qu'il est réalisé en PTFE.
  8. Elément isolant suivant l'une des revendications 1 à 7, caractérisé en ce que l'élément est formé par le corps (9) de buse ou le cylindre de compression d'un sectionneur de puissance haute tension, sur la face (10) frontale duquel sont formées les rainures ou nervures.
  9. Procédé de fabrication d'un élément isolant pour appareils haute tension suivant la revendication 1 ou l'une des revendications suivantes,
    caractérisé en ce que l'élément (9) est, à la suite du façonnage, au moins dans une région de sa surface (10) qui est soumise à de fortes sollicitations diélectriques, usiné par enlèvement de matière de façon à le doter de rainures ou à laisser dressées des nervures.
EP96919580A 1995-05-24 1996-05-15 Element isolant pour appareils haute tension Expired - Lifetime EP0830700B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19519992 1995-05-24
DE19519992A DE19519992C2 (de) 1995-05-24 1995-05-24 Schaltstrecke für einen mit einem Löschgas arbeitenden Hochspannungs-Leistungsschalter
PCT/DE1996/000911 WO1996037902A1 (fr) 1995-05-24 1996-05-15 Element isolant pour appareils haute tension

Publications (2)

Publication Number Publication Date
EP0830700A1 EP0830700A1 (fr) 1998-03-25
EP0830700B1 true EP0830700B1 (fr) 1999-03-24

Family

ID=7763346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96919580A Expired - Lifetime EP0830700B1 (fr) 1995-05-24 1996-05-15 Element isolant pour appareils haute tension

Country Status (7)

Country Link
US (1) US5902980A (fr)
EP (1) EP0830700B1 (fr)
JP (1) JP3771266B2 (fr)
CN (1) CN1068966C (fr)
CA (1) CA2221942C (fr)
DE (2) DE19519992C2 (fr)
WO (1) WO1996037902A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018192732A1 (fr) 2017-04-21 2018-10-25 Siemens Aktiengesellschaft Commutateur à double buse comprenant un contact extérieur et procédé servant à commuter le commutateur à double buse

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29607660U1 (de) * 1996-04-22 1996-06-20 Siemens AG, 80333 München Unterbrechereinheit eines Hochspannungs-Leistungsschalters
DE19826202C2 (de) 1998-06-10 2000-12-14 Siemens Ag Isolierendes Bauteil für Hochspannungsanlagen und Verfahren zu seiner Herstellung
JP2002135921A (ja) * 2000-10-26 2002-05-10 Mitsubishi Electric Corp ガス絶縁開閉装置及びその樹脂モールドブッシング
EP1306954B1 (fr) * 2001-10-29 2011-07-27 ABB Research Ltd. Isolateur de support avec barrière intégrée pour installation électrique à isolation gazeuse
JP4421331B2 (ja) * 2004-02-26 2010-02-24 株式会社東芝 ガス遮断器
JP5127569B2 (ja) * 2008-05-29 2013-01-23 株式会社東芝 ガス絶縁開閉器
FR2933806B1 (fr) * 2008-07-10 2010-09-03 Areva T & D Sa Appareillage electrique sous enveloppe metallique a gradient de tension reduit.
CN101599391B (zh) * 2009-07-13 2013-02-27 西安森源配电自动化设备有限公司 单断口单气缸自能式高压六氟化硫断路器灭弧室

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1549097A (fr) * 1967-01-03 1968-12-06
DE2209287C3 (de) * 1972-02-22 1974-12-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrischer Druckgasschalter
DE2626855C2 (de) * 1976-06-11 1978-06-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Isolierendes Bauteil für Hoch-
US4289942A (en) * 1977-07-29 1981-09-15 Westinghouse Electric Corp. Gas-blast circuit-interrupter with multiple insulating arc-shield construction
US4229627A (en) * 1978-10-04 1980-10-21 Electric Power Research Institute, Inc. Gas puffer type current interrupter and method
DE3046629C2 (de) * 1980-12-11 1985-04-04 Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt Verfahren zur Herstellung von Isolatoroberflächen
DE3047761C2 (de) * 1980-12-15 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Isolierkörper aus Kunststoff mit mineralischem Füllstoff
JPS61188825A (ja) * 1985-02-15 1986-08-22 株式会社日立製作所 パツフア式ガス遮断器
DE4332886A1 (de) * 1993-09-21 1995-03-23 Siemens Ag Druckgasschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018192732A1 (fr) 2017-04-21 2018-10-25 Siemens Aktiengesellschaft Commutateur à double buse comprenant un contact extérieur et procédé servant à commuter le commutateur à double buse
DE102017206748A1 (de) 2017-04-21 2018-10-25 Siemens Aktiengesellschaft Doppeldüsenschalter mit Außenkontakt und Verfahren zum Schalten des Doppeldüsenschalters

Also Published As

Publication number Publication date
CN1184551A (zh) 1998-06-10
US5902980A (en) 1999-05-11
DE19519992A1 (de) 1996-11-28
CN1068966C (zh) 2001-07-25
EP0830700A1 (fr) 1998-03-25
CA2221942A1 (fr) 1996-11-28
DE59601505D1 (de) 1999-04-29
JPH11505952A (ja) 1999-05-25
WO1996037902A1 (fr) 1996-11-28
CA2221942C (fr) 2002-01-01
DE19519992C2 (de) 2002-03-21
JP3771266B2 (ja) 2006-04-26

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