EP2618355A1 - Agencement de protection de vapeur pour tube de commutation sous vide - Google Patents

Agencement de protection de vapeur pour tube de commutation sous vide Download PDF

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Publication number
EP2618355A1
EP2618355A1 EP12000299.3A EP12000299A EP2618355A1 EP 2618355 A1 EP2618355 A1 EP 2618355A1 EP 12000299 A EP12000299 A EP 12000299A EP 2618355 A1 EP2618355 A1 EP 2618355A1
Authority
EP
European Patent Office
Prior art keywords
shielding
shield arrangement
vapor shield
arrangement according
shielding element
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
EP12000299.3A
Other languages
German (de)
English (en)
Other versions
EP2618355B1 (fr
Inventor
Dietmar Dr.-Ing. Gentsch
Günter Dipl.-Ing. Pilsinger
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 Schweiz AG
Original Assignee
ABB Technology 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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP12000299.3A priority Critical patent/EP2618355B1/fr
Priority to ES12000299T priority patent/ES2927823T3/es
Priority to PCT/EP2013/000124 priority patent/WO2013107638A1/fr
Priority to CN201390000205.9U priority patent/CN204167192U/zh
Publication of EP2618355A1 publication Critical patent/EP2618355A1/fr
Application granted granted Critical
Publication of EP2618355B1 publication Critical patent/EP2618355B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/60—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
    • H01H2033/66269—Details relating to the materials used for 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
    • H01H2033/66276—Details relating to the mounting 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 relates to a vapor shield arrangement for vacuum switching tube, as for the use in medium voltage switchgears.
  • Vacuum switching tubes are often applied with radial- or axial- magnetic field contact system with coaxial shielding.
  • a profiled shielding supports power increase of such vacuum switching tubes.
  • a light arc occurs between the contact pieces.
  • cylindrical shieldings are positioned around the contacts. Such arrangements are known from the DE 195 03 347 A1 .
  • the shielding consist of at least two concentric arranged cylindric shielding elements with a space or hollow space between the so arranged inner shielding element and the at least one outer shielding element, and that the inner shielding element has openings, which corresponds with the hollow space between the shielding elements, and the surrounding outer shielding element is made of a porous material.
  • the effect of metal particle deposition on the inner ceramic vacuum chamber surface will be prevented not only by the use of a single shielding, but by the use of hollow space absorption of the light arc energy as well as the absorption of the metal particle evaporation.
  • the outer shielding made of porous material dissipates the energy which passes through the openings of the inner shielding into the hollow space in case of an occurring light arc in a perfect way.
  • a further advantageous embodiment is, that the openings are arranged regular over the complete inner shielding element. With this an optimal energy distribution is given.
  • the openings are made by punching, machining, lasering or simply sintering of particles out. This is easy in manufacture and physically very effective, because of the shape of such punched out openings, with the resulting bending of the border line.
  • a futher advantageous possibility is, that the openings are made by materials drilling.
  • At least one of the shielding elements can consist of topographic structured regular surface structure. This supports the aforesaid energy distribution furthermore
  • At least the inner shielding element consist of, or is surface coated on its inner surface with heat erosion restistant material such as copper-cromium or copper-tungsten or copper-chromium-tungsten or stainless steel.
  • the outer, or the next to the inner shielding element arranged further shielding element is made of copper, or a copper a copper steel or iron alloy.
  • FIG. 1 and 2 An embodiment of the invention is shown in figure 1 and 2 .
  • FIG. 1 shows partly a vacuum chamber in medium voltage use for so called vacuum circuit breakers 1.
  • a vacuum chamber consist basically of a middle part made as a ceramic tube or connected ceramic tube segments. The ends are closed vacuum tight with metal caps.
  • Inside are two contact pieces which can be moved relatively in order to close and open the contact pieces 2 and 3. In most cases one contact piece is fixed and one is movable, over a vacuumtight bellows. In case of opening the contact, a light arc occurs, which has to be eliminated quickly.
  • a schielding which is a cylindric tube 4 surrounds the contact area in order to prevent metal particle deposition on the inner surface of the ceramic parts 5 and 6.
  • the shielding is not a single layer tube, but an arrangement of at least two concentric shielding tubes 4 and 4' in that way, that the shielding is a tube-in-tube arrangement.
  • the inner shielding element or tube has regular arrangement of punched out openings with a spreaded irregular borderline of around this openings itself. This causes an optimal energy dissipation in case of occuring light arc. Important is, that only the inner shielding element has such openings.
  • the surrounding second shielding element has no openings in case there is a "only" a double shield arrangement. So both concentric shielding elements or tube include a inner hollow space, in which perfect energy dissipation takes place.
  • both shielding elements are structured regularely.
  • the surface structure is made by a kind of a folded tube like a bellows.
  • each surface, inner and outer surfaces are structured in that way. This prolongs the energy dissipation path furthermore and supports the intended effect additionally.
  • the axial fixation that means the prevention of an axial displacement of the external shielding element 4' is realized by a rotation symmetric cavity in the inner surface of the ceramics, which is dimensioned equal of only slightly longer (in axial direction) then the outer axial extension of the outer shielding element or tube 4'. This gives a sure position of the outer shielding element 4' and prevents an unintended axial shifting.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP12000299.3A 2012-01-19 2012-01-19 Agencement de protection de vapeur pour tube de commutation sous vide Active EP2618355B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12000299.3A EP2618355B1 (fr) 2012-01-19 2012-01-19 Agencement de protection de vapeur pour tube de commutation sous vide
ES12000299T ES2927823T3 (es) 2012-01-19 2012-01-19 Disposición de protección frente al vapor para un tubo de vacío de conmutación
PCT/EP2013/000124 WO2013107638A1 (fr) 2012-01-19 2013-01-17 Agencement de protection contre la vapeur destiné à un tube de commutation à vide
CN201390000205.9U CN204167192U (zh) 2012-01-19 2013-01-17 真空开关管的蒸气屏蔽装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12000299.3A EP2618355B1 (fr) 2012-01-19 2012-01-19 Agencement de protection de vapeur pour tube de commutation sous vide

Publications (2)

Publication Number Publication Date
EP2618355A1 true EP2618355A1 (fr) 2013-07-24
EP2618355B1 EP2618355B1 (fr) 2022-07-13

Family

ID=47561592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12000299.3A Active EP2618355B1 (fr) 2012-01-19 2012-01-19 Agencement de protection de vapeur pour tube de commutation sous vide

Country Status (4)

Country Link
EP (1) EP2618355B1 (fr)
CN (1) CN204167192U (fr)
ES (1) ES2927823T3 (fr)
WO (1) WO2013107638A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160104590A1 (en) * 2014-10-13 2016-04-14 Eaton Corporation Composite arc shields for vacuum interrupters and methods for forming same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107293442B (zh) * 2016-03-30 2019-05-24 北京京东方真空电器有限责任公司 一种具备集成化功能的绝缘外壳及其制造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349552A (fr) * 1962-01-26 1964-01-17 Thomson Houston Comp Francaise Interrupteur à vide
JPS48113649U (fr) * 1972-03-31 1973-12-26
JPS55173037U (fr) * 1979-05-31 1980-12-11
US4940862A (en) * 1989-10-26 1990-07-10 Westinghouse Electric Corp. Vacuum interrupter with improved vapor shield for gas adsorption
JPH03261020A (ja) * 1990-03-09 1991-11-20 Fuji Electric Co Ltd 真空遮断器用真空バルブ
DE19503347A1 (de) 1995-02-02 1996-08-08 Abb Patent Gmbh Die Kontaktstelle eines Vakuumschalters umgebendes Abschirmelement
DE19856288A1 (de) * 1998-12-07 2000-06-08 Abb Patent Gmbh Vakuumschaltkammer
DE102007047473B3 (de) * 2007-09-27 2008-11-20 Siemens Ag Verfahren zur Herstellung eines als Abschirmung in einer Vakuumschaltröhre einsetzbaren rohrförmigen Bauteils

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349552A (fr) * 1962-01-26 1964-01-17 Thomson Houston Comp Francaise Interrupteur à vide
JPS48113649U (fr) * 1972-03-31 1973-12-26
JPS55173037U (fr) * 1979-05-31 1980-12-11
US4940862A (en) * 1989-10-26 1990-07-10 Westinghouse Electric Corp. Vacuum interrupter with improved vapor shield for gas adsorption
JPH03261020A (ja) * 1990-03-09 1991-11-20 Fuji Electric Co Ltd 真空遮断器用真空バルブ
DE19503347A1 (de) 1995-02-02 1996-08-08 Abb Patent Gmbh Die Kontaktstelle eines Vakuumschalters umgebendes Abschirmelement
DE19856288A1 (de) * 1998-12-07 2000-06-08 Abb Patent Gmbh Vakuumschaltkammer
DE102007047473B3 (de) * 2007-09-27 2008-11-20 Siemens Ag Verfahren zur Herstellung eines als Abschirmung in einer Vakuumschaltröhre einsetzbaren rohrförmigen Bauteils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160104590A1 (en) * 2014-10-13 2016-04-14 Eaton Corporation Composite arc shields for vacuum interrupters and methods for forming same
US9875869B2 (en) * 2014-10-13 2018-01-23 Eaton Corporation Composite arc shields for vacuum interrupters and methods for forming same
US10679806B2 (en) 2014-10-13 2020-06-09 Eaton Intelligent Power Limited Composite arc shields for vacuum interrupters and methods for forming same

Also Published As

Publication number Publication date
EP2618355B1 (fr) 2022-07-13
CN204167192U (zh) 2015-02-18
WO2013107638A1 (fr) 2013-07-25
ES2927823T3 (es) 2022-11-11

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