EP1290707A1 - Tube commutateur a vide - Google Patents

Tube commutateur a vide

Info

Publication number
EP1290707A1
EP1290707A1 EP01949260A EP01949260A EP1290707A1 EP 1290707 A1 EP1290707 A1 EP 1290707A1 EP 01949260 A EP01949260 A EP 01949260A EP 01949260 A EP01949260 A EP 01949260A EP 1290707 A1 EP1290707 A1 EP 1290707A1
Authority
EP
European Patent Office
Prior art keywords
ceramic
ceramic insulators
vacuum
contact pieces
diameter
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
EP01949260A
Other languages
German (de)
English (en)
Other versions
EP1290707B1 (fr
Inventor
Roman Renz
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 EP1290707A1 publication Critical patent/EP1290707A1/fr
Application granted granted Critical
Publication of EP1290707B1 publication Critical patent/EP1290707B1/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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66284—Details relating to the electrical field properties of screens in vacuum switches
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66292—Details relating to the use of multiple screens in vacuum switches

Definitions

  • the invention is in the field of electrical switches and can be used in the structural design of a vacuum interrupter, the housing of which surrounds two contact pieces which can be moved relative to one another and has two ceramic insulators of the same diameter arranged coaxially to one another, the two ceramic insulators being vacuum-tight via an interposed metal part designed as a switching chamber are interconnected.
  • the contact pieces are known as axial magnetic field contacts
  • Pot-shaped each provided with a power supply bolt and axially movable relative to each other by a predetermined switching stroke.
  • Each power supply bolt is surrounded by one of the two ceramic insulators and on the metal part connecting the ceramic insulators are cylindrical
  • a vacuum interrupter of this type is particularly suitable for use in switchgear on the medium-voltage level (15 to 36 kV) (DE 197 13 478 Cl).
  • the preamble of claim 1 is the object of the invention to design the vacuum interrupter so that it can also be used for high voltage purposes, more than 60 kV (e.g. 72 kV, 84 kV) can be used.
  • both the first and the second ceramic insulator are each assigned a further, similar ceramic insulator coaxially and immediately adjacent, the two adjacent ceramic insulators each being connected to one another in a vacuum-tight manner by means of an interposed metal part, that a cylindrical steam screen is attached to each of the interposed metal parts and that all steam screens are arranged at an axial distance from one another.
  • a vacuum interrupter designed in this way is distinguished by the fact that the required dielectric strength is achieved with a very small construction volume and that it can be produced using production facilities which are customary for medium-voltage tubes. Due to the design of all steam screens with a cylindrical shape and their axially staggered arrangement, the diameter of all ceramic insulators can be selected to be relatively small and is approximately 130 mm for a 72 kV tube. The required expansion of the vacuum interrupter in the area of the actual switching path has no influence on the diameter of the ceramic insulators, since a metal switching chamber, expediently made of copper, is used in this area. This can be designed in the form of a bulb, so that it can be connected in a vacuum-tight manner at its edges to the adjacent ceramic insulators, despite their smaller diameter.
  • the inside diameter of all ceramic insulators is at most equal to the outside diameter of the contact pieces plus the single switching stroke and if the inside diameter of the metal part designed as a switching chamber is at most equal to the outside diameter of the contact pieces plus twice the switching stroke.
  • the relatively small diameter of the switching chamber is made possible by the use of axial magnetic field contacts for the contact pieces.
  • the tube can be lengthened by coaxial arrangement of additional ceramic insulators of the same type and the interposition of a metal part carrying a cylindrical vapor shield.
  • Vacuum interrupters with four coaxially arranged ceramic insulators and interposed metal parts as well as with steam screens attached to the metal parts are known per se.
  • the steam screens are conical and overlap in the axial direction of the tube.
  • the ceramic insulators have a relatively large diameter (US 3,792,214 A).
  • Vacuum interrupter 72 kV. Spiral electrodes were used for the contact pieces, optionally with the additional use of an external magnetic coil. In such a vacuum interrupter, the ceramic insulators have a relatively large diameter of 230 mm (IEEE Transactions on Power Apparatus and Systems, Vol. PAS-99, No. 2 March / April 1980, pages 658 to 666). An embodiment of the new vacuum interrupter is shown in the single figure of the drawing.
  • the vacuum interrupter 1 shown in the figure has a contact arrangement which consists of the axially movable contact piece 2 and the fixed contact piece 3, these contact pieces being provided with current supply bolts 4 and 5, respectively.
  • the contact pieces 2 and 3 are designed in a manner known per se as cup-shaped axial magnetic field contacts (EP 0 155 376 Cl).
  • a vacuum-tight housing 6 which consists of a metal switching chamber 67 surrounding the contact pieces, ceramic insulators 64 and 63 adjoining at the top and a cover plate 61 and ceramic insulators 65 and 66 adjoining at the bottom and a cover plate 62. Also part of the housing is a bellows 68, which is arranged between the current supply bolts 4 of the movable contact piece 2 and the end plate 61. Also connected to the housing are shields 70 and 73, which are attached to the edges of the switching chamber 67, and shields 72 and 75, which are in the vacuum-tight connection between the ceramic insulator 63 and the end plate 61 or the end plate 62 and the ceramic insulator 66 are included, and finally shields 71 and
  • the adjoining housing parts are soldered to one another and to the two power supply bolts in a vacuum-tight manner.
  • the steam screens 70 to 75 are each cylindrical and have u flared edges.
  • the steam shields assigned to two ceramic insulators are arranged axially staggered, so that there are distances AI and A2.
  • a switching stroke S is provided for the movable contact piece 2, which is approximately 40 mm in a vacuum switching tube for 72 kV.
  • the ceramic insulators 63 to 66 have the same diameter D2 and, in the exemplary embodiment shown, are also of equal length to one another. But they can also have different lengths. - In comparison to the outer diameter Dl of the contact pieces, the inner diameter D2 of the ceramic insulators is smaller than the outer diameter Dl of the contact pieces plus the single switching stroke S. - The inner diameter D3 of the switching chamber 67 does not need to be larger than the outer diameter Dl of the contact pieces plus the double switching stroke S. to be.
  • the overall result is a very slim tube which has a relatively small construction volume and can therefore be degassed without great effort.
  • the metal parts and ceramic insulators forming the housing can be designed and arranged in such a way that all the solder connections relating to the housing of the vacuum interrupters are produced in a single operation, it being possible to dispense with the use of a pump rod for degassing the tube. This has a positive effect on the dielectric strength of the tube.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un tube commutateur à vide comportant sur chacun des deux côtés d'une chambre de commutation (67) en métal deux isolateurs en céramique (63, 64 ; 65, 66) de même diamètre (D2). Au niveau des rainures de ces éléments sont fixés des écrans vapeur (70, 73 ; 71, 74) cylindriques espacés les uns des autres par un écartement axial. Une telle construction permet de maîtriser des tensions nominales supérieurs à 60 kV pour un faible encombrement et une réalisation aisée.
EP01949260A 2000-06-16 2001-06-08 Tube commutateur a vide Expired - Lifetime EP1290707B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10029763A DE10029763B4 (de) 2000-06-16 2000-06-16 Vakuumschaltröhre
DE10029763 2000-06-16
PCT/DE2001/002187 WO2001097242A1 (fr) 2000-06-16 2001-06-08 Tube commutateur a vide

Publications (2)

Publication Number Publication Date
EP1290707A1 true EP1290707A1 (fr) 2003-03-12
EP1290707B1 EP1290707B1 (fr) 2007-02-07

Family

ID=7646007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01949260A Expired - Lifetime EP1290707B1 (fr) 2000-06-16 2001-06-08 Tube commutateur a vide

Country Status (6)

Country Link
US (1) US6891122B2 (fr)
EP (1) EP1290707B1 (fr)
JP (1) JP2004503904A (fr)
CN (1) CN1204581C (fr)
DE (2) DE10029763B4 (fr)
WO (1) WO2001097242A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6916564B2 (en) * 2000-05-31 2005-07-12 Nuvera Fuel Cells, Inc. High-efficiency fuel cell power system with power generating expander
FR2887683A1 (fr) 2005-06-28 2006-12-29 Schneider Electric Ind Sas Ampoule a vide pour un appareil de protection electrique tel un interrupteur ou un disjoncteur
US20070007250A1 (en) * 2005-07-08 2007-01-11 Eaton Corporation Sealing edge cross-sectional profiles to allow brazing of metal parts directly to a metallized ceramic for vacuum interrupter envelope construction
US8039771B2 (en) * 2008-08-11 2011-10-18 Eaton Corporation Vacuum envelope including self-aligning end shield, vacuum interrupter, vacuum circuit interrupter and method including the same
DE102009031598B4 (de) * 2009-07-06 2011-06-01 Siemens Aktiengesellschaft Vakuumschaltröhre
DE102010005466B3 (de) * 2010-01-20 2011-05-05 Siemens Aktiengesellschaft Vakuumschaltröhre
DE102012221844A1 (de) 2012-11-29 2014-06-05 Siemens Aktiengesellschaft Schaltkontakt für Vakuumschaltröhren
DE102014213944A1 (de) * 2014-07-17 2016-01-21 Siemens Aktiengesellschaft Elektrische Schaltvorrichtung für Mittel- und/oder Hochspannungsanwendungen
US9875869B2 (en) 2014-10-13 2018-01-23 Eaton Corporation Composite arc shields for vacuum interrupters and methods for forming same
DE102015213738A1 (de) 2015-07-21 2017-01-26 Siemens Aktiengesellschaft Energietechnische Komponente, insbesondere Vakuumschaltröhre
KR102545133B1 (ko) * 2016-04-05 2023-06-19 엘에스일렉트릭(주) 진공 차단기의 진공 인터럽터
DE102016214750A1 (de) * 2016-05-19 2017-11-23 Siemens Aktiengesellschaft Verfahren zur Herstellung eines keramischen Isolators
DE102017201326A1 (de) * 2017-01-27 2018-08-02 Siemens Aktiengesellschaft Isolatoranordnung für eine Hochspannungs- oder Mittelspannungsanlage
DE102017222415B4 (de) * 2017-12-11 2021-03-25 Siemens Aktiengesellschaft Schirmelement für eine Vakuumschaltröhre
US11756756B2 (en) * 2021-02-25 2023-09-12 S&C Electric Company Vacuum interrupter with double live shield

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185797A (en) * 1962-07-17 1965-05-25 Gen Electric Vacuum-type circuit interrupter with improved arc splitting means
US3185800A (en) * 1963-02-18 1965-05-25 Gen Electric Vacuum type circuit interrupter with improved vapor-condensing shielding
US3792214A (en) * 1972-01-28 1974-02-12 Westinghouse Electric Corp Vacuum interrupter for high voltage application
GB1441479A (en) * 1973-02-16 1976-06-30 Meidensha Electric Mfg Co Ltd Vacuum circuit breaker assembly
US4006331A (en) * 1975-08-27 1977-02-01 General Electric Company Vacuum interrupter for high voltage applications
US4135071A (en) * 1976-03-17 1979-01-16 General Electric Company Vacuum circuit interrupter with disc-shaped beryllium contacts
JPS5855609B2 (ja) 1979-07-23 1983-12-10 株式会社明電舎 真空しや断器
DE3407088A1 (de) 1984-02-27 1985-08-29 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
DE4214550A1 (de) * 1992-04-29 1993-11-04 Siemens Ag Vakuumschaltroehre
DE19713478C1 (de) * 1997-03-18 1998-04-09 Siemens Ag Vakuumschaltröhre mit einem zwischen zwei Isolatoren angeordneten metallenen Gehäuseteil
DE19756308C1 (de) * 1997-12-12 1999-03-25 Siemens Ag Vakuumschalter, insbesondere für Hochspannung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0197242A1 *

Also Published As

Publication number Publication date
US20030141282A1 (en) 2003-07-31
DE50112011D1 (de) 2007-03-22
CN1432183A (zh) 2003-07-23
EP1290707B1 (fr) 2007-02-07
DE10029763A1 (de) 2002-01-03
WO2001097242A1 (fr) 2001-12-20
DE10029763B4 (de) 2009-01-15
US6891122B2 (en) 2005-05-10
JP2004503904A (ja) 2004-02-05
CN1204581C (zh) 2005-06-01

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