EP0435865B1 - Sectionneur a coupure en charge contenant un tube commutateur a vide et procede de fonctionnement dudit sectionneur a coupure en charge - Google Patents

Sectionneur a coupure en charge contenant un tube commutateur a vide et procede de fonctionnement dudit sectionneur a coupure en charge Download PDF

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Publication number
EP0435865B1
EP0435865B1 EP88909296A EP88909296A EP0435865B1 EP 0435865 B1 EP0435865 B1 EP 0435865B1 EP 88909296 A EP88909296 A EP 88909296A EP 88909296 A EP88909296 A EP 88909296A EP 0435865 B1 EP0435865 B1 EP 0435865B1
Authority
EP
European Patent Office
Prior art keywords
contact
switch
vacuum
load
switch tube
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
EP88909296A
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German (de)
English (en)
Other versions
EP0435865A1 (fr
Inventor
Hans Bettge
Peter Krüger
Michael Roese
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 EP0435865A1 publication Critical patent/EP0435865A1/fr
Application granted granted Critical
Publication of EP0435865B1 publication Critical patent/EP0435865B1/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
    • H01H33/60—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
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • 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
    • H01H33/66238—Specific bellows details
    • H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows

Definitions

  • the invention is in the field of electrical switches and is applicable to the design and operation of a load break switch that includes a vacuum interrupter.
  • the vacuum interrupters used for electrical switches - particularly in the voltage range 6 to 35 kV - generally have the following structure: an insulating, tubular housing is provided with two conductive end caps, through which two coaxial contact bolts are inserted into the housing.
  • the contact bolts one of which is directly vacuum-tightly connected to one end cap and the other via a bellows to the other end cap, are provided with contact surfaces arranged on the end face (US Pat. No. 3,590,197).
  • the contact surfaces are formed by special contact pieces for which a special material is used and which may have a special structural design (DE-OS 26 38 700).
  • contact pieces made of ferrous material such as maraging steel or stainless chrome-nickel steel have also proven to be suitable (DE-OS 23 08 913, GB-PS 1 480 285).
  • a vacuum interrupter with contact bolts made of a copper alloy which contains 0.003 to 0.5% boron and preferably also 0.1 to 1.0% bismuth it is also known that the end faces of the contact bolts themselves form the contact surfaces (GB-A-1 309 197).
  • Vacuum interrupters can be used for circuit breakers as well as for load break switches and contactors. In switch disconnectors, they are only loaded with the permissible continuous operating current. Therefore, their properties cannot be fully exploited in this type of application. To the breaking capacity of vacuum interrupters used in switch disconnectors are better to use, it is already known to have a first switching contact and in series with the vacuum interrupter to arrange a second switching contact in parallel with this series connection. When the switch-disconnector is switched off, the switch contact arranged in parallel, which is designed for the full switch-disconnector nominal current, is then opened; This is followed by an interruption of the arc by means of the vacuum interrupter and finally the opening of the switching contact connected in series, which forms a visible disconnection point. - When switching on the switch disconnector, the vacuum interrupter is switched on after switching on the switching contact arranged in series or only after switching on both switching contacts (DE-OS 25 22 525).
  • the vacuum interrupter consisting of an insulating, tubular housing with two conductive end caps and two coaxially opposite contact bolts with contact surfaces arranged on the end face, and one contact bolt directly with one end cap and the other Contact bolt is connected in a vacuum-tight manner via a bellows to the other end cap
  • the invention is based on the novel object of designing such a load-break switch in such a way that the vacuum interrupter is essentially tailored only to the function of switching off a load current.
  • the knife-like switching contact is arranged parallel to the vacuum interrupter and the other knife-like switching contact is arranged in series with the parallel connection of the vacuum interrupter and the one switching contact, and that the contact bolts are made of chromium-nickel steel and the end faces thereof Contact bolts form the contact surfaces of the vacuum interrupter.
  • the vacuum interrupter is very simple, especially in the area of the contact point, since neither specially designed contact pieces nor high-quality contact materials are used; rather, the end faces of the contact bolts themselves form the contact areas.
  • a commercially available steel alloy and therefore a very inexpensive material is used for the contact bolts.
  • the further intended assignment of the two knife-like switching contacts to the vacuum interrupter allows, with a corresponding switching sequence of the three switching contacts, that the vacuum interrupter carries no nominal current, is not switched on to the short-circuit current and does not need to have a static dielectric strength. Accordingly, it is provided that during operation of the switch disconnector, the vacuum interrupter is kept open when the switch disconnector is switched on and in the normal switch-on position of the two switch contacts, that the contact of the vacuum interrupter is first closed to switch off the switch disconnector and that the switch contact arranged in parallel, then the contact of the Vacuum switching tube and finally the switching contact arranged in series can be opened.
  • Figure 1 shows an embodiment of the vacuum interrupter used for the switch disconnector and Figure 2 shows a circuit diagram for the assignment of this vacuum interrupter to two knife-like switching contacts of a switch disconnector.
  • FIG. 1 shows a vacuum interrupter, which in a known manner consists of a housing 1 in the form of a cylindrical insulator made of aluminum oxide ceramic with two end caps 2 and 3 made of oxygen-free copper and two cylindrical contact bolts 4 and 5 which are located coaxially opposite one another.
  • the two end caps 2 and 3 are connected in a butt joint directly to the end faces of the housing 2 in a vacuum-tight manner by means of a soldered connection, and on the other hand directly to the contact bolt 4 or indirectly via a bellows 6 and a steam shield 7 soldered vacuum-tight to the axially movable contact pin 5.
  • the movable contact pin 5 is also guided with the aid of a flange part 8 which is supported against the end cap 3.
  • the contact system of the vacuum interrupter consists of the two coaxially opposite cylindrical contact pins 4 and 5, which touch in the switched-on state with their mutually facing end faces 41, 51.
  • the contact pins are made of chrome-nickel steel, which is inherently poorly conductive, but also poorly welded in a vacuum and has a low gas content.
  • the vacuum interrupter designed according to FIG. 1 is to be used as a load interrupter.
  • it is arranged parallel to a knife-like switch contact 12 in a load-break switch and a further knife-like switch contact 11 is arranged in series with this parallel connection.
  • the drive of such a switch disconnector is to be designed so that in the normal operating state of the switch the switch contact of the vacuum interrupter 10 is open, that to switch off the switch disconnector first the vacuum interrupter 10 is switched on in parallel with the switch contact 12, then the switch contact 12 is opened, then the vacuum interrupter 10 is switched off and finally the switch contact 11 is also opened. This switch-disconnector is switched on only by closing the switching contacts 11 and 12.
  • Such a mode of operation has the advantage that the load-switching tube is not subjected to the switch-on short-circuit current or the nominal current and is not subject to any constant static voltage stress.
  • the vacuum interrupter therefore only has to meet low dielectric, dynamic and thermal requirements will. This makes it possible to manufacture the vacuum interrupter much smaller and more cost-effectively than the conventional interrupters.

Landscapes

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

Abstract

Les chevilles de contact (4, 5) coaxialement opposées d'un tube commutateur à vide (10) spécialement conçu pour un sectionneur à coupure en charge sont en acier chrome-nickel; les surfaces de contact sont constituées par les surfaces frontales des chevilles de contact (4, 5). Ce tube commutateur à vide (10) est conçu spécialement pour la fonction 'interruption du courant sous charge'. A cet effet, le contact du tube commutateur à vide (10) n'est fermé que juste avant l'ouverture d'un contact de commutation (12) qui lui est parallèle.

Claims (2)

  1. Interrupteur-sectionneur comportant un tube commutateur à vide (10) et deux contacts de coupure (11, 12) de type à lame, le tube commutateur à vide (10) étant constitué d'un boitier (1) tubulaire isolant et ayant deux capots d'extrémité (2, 3) conducteurs, et de deux axes de contact (4, 5) apposés coaxialement et ayant des faces de contact (41, 51) frontales, l'un des axes de contact (4) étant relié directement, de manière étanche au vide, à l'un des capots d'extrémité (2) et l'autre axe de contact (5) étant relié, de manière étanche au vide, par l'intermédiaire d'un soufflet (6), à l'autre capot d'extrémité (3),
       caractérisé par le fait que, l'un des contacts de coupure (12) de type à lame est en parallèle avec le tube commutateur à vide (10) et l'autre contact de coupure (11) de type à lame est en série avec le circuit parallèle constitué du tube commutateur à vide et de l'un des contacts de coupure (12) et que les axes de contact (4, 5) du tube commutateur à vide (10) sont en acier au chrome et au nickel et les faces frontales (41, 51) des axes de contact (4, 5) forment les faces de contact du tube commutateur à vide (10).
  2. Procédé pour faire fonctionner un interrupteur-sectionneur suivant la revendication 1, comportant la succession suivante de manoeuvres des contacts de commutation (11, 12) et du tube commutateur à vide (10) :
       le tube commutateur à vide (10) est maintenu ouvert lors de la fermeture de l'interrupteur-sectionneur et en la position normale fermée des deux contacts de coupure (11, 12), pour ouvrir l'interrupteur-sectionneur, on ferme, d'abord, le contact du tube commutateur à vide (10) et ensuite on ouvre le contact de coupure (12) monté en parallèle, puis le contact du tube commutateur à vide (10) et enfin le contact de coupure (11) monté en série.
EP88909296A 1988-09-22 1988-10-28 Sectionneur a coupure en charge contenant un tube commutateur a vide et procede de fonctionnement dudit sectionneur a coupure en charge Expired - Lifetime EP0435865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832493 1988-09-22
DE3832493A DE3832493A1 (de) 1988-09-22 1988-09-22 Vakuumschaltroehre, eine solche schaltroehre enthaltender lasttrennschalter und verfahren zum betrieb eines solchen lasttrennschalters

Publications (2)

Publication Number Publication Date
EP0435865A1 EP0435865A1 (fr) 1991-07-10
EP0435865B1 true EP0435865B1 (fr) 1993-08-11

Family

ID=6363638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909296A Expired - Lifetime EP0435865B1 (fr) 1988-09-22 1988-10-28 Sectionneur a coupure en charge contenant un tube commutateur a vide et procede de fonctionnement dudit sectionneur a coupure en charge

Country Status (6)

Country Link
US (1) US5168139A (fr)
EP (1) EP0435865B1 (fr)
JP (1) JPH04500740A (fr)
KR (1) KR900702551A (fr)
DE (2) DE3832493A1 (fr)
WO (1) WO1990003657A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0479117A (ja) * 1990-07-19 1992-03-12 Fuji Electric Co Ltd ガス絶縁開閉装置
DE4214550A1 (de) * 1992-04-29 1993-11-04 Siemens Ag Vakuumschaltroehre
FR2719154B1 (fr) * 1994-04-25 1996-06-07 Merlin Gerin Interrupteur électrique moyenne tension.
DE4447391C1 (de) * 1994-12-23 1996-06-05 Siemens Ag Vakuumschalter
DE19721611C2 (de) * 1997-05-23 2003-08-07 Abb Patent Gmbh Vakuumkammer
DE19918077C1 (de) * 1999-04-21 2000-11-09 Driescher Eltech Werk Lastschalter
DE10317735B3 (de) * 2003-04-11 2004-11-18 Siemens Ag Erdungsschalter mit einem bewegbaren Kontaktstück
DE102004006476B4 (de) * 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
DE102008031472B4 (de) * 2008-07-02 2010-05-06 Siemens Aktiengesellschaft Vakuumschaltröhre
FR2970809B1 (fr) 2011-01-25 2013-02-22 Schneider Electric Ind Sas Dispositif de coupure moyenne tension comprenant une ampoule a vide
US8674254B2 (en) 2011-01-31 2014-03-18 Thomas & Betts International, Inc. Flexible seal for high voltage switch
US9673283B2 (en) 2011-05-06 2017-06-06 Cree, Inc. Power module for supporting high current densities
US9373617B2 (en) 2011-09-11 2016-06-21 Cree, Inc. High current, low switching loss SiC power module
US9640617B2 (en) 2011-09-11 2017-05-02 Cree, Inc. High performance power module
CN102568913A (zh) * 2011-12-21 2012-07-11 西安交通大学 一种额定电流得到提高的真空断路器
CN105789924A (zh) * 2014-12-15 2016-07-20 西门子公司 高压开关的补偿模块及其高压开关
US9679724B2 (en) 2015-07-13 2017-06-13 Eaton Corporation Component for electric power system, and contact assembly and open air arcing elimination method therefor
FR3056822B1 (fr) * 2016-09-28 2018-10-12 Schneider Electric Ind Sas Ampoule a vide pour appareil de connexion electrique
FR3074607A1 (fr) * 2017-12-04 2019-06-07 Schneider Electric Industries Sas Ampoule a vide pour appareil electrique de coupure
DE102017222413A1 (de) * 2017-12-11 2019-06-13 Siemens Aktiengesellschaft Überdruckfeste Vakuumschaltröhre
DE102018200450A1 (de) * 2018-01-12 2019-07-18 Siemens Aktiengesellschaft Vakuumschaltröhre
DE102019216663B4 (de) * 2019-10-29 2023-02-02 Siemens Aktiengesellschaft Vakuumschaltvorrichtung für eine Schaltung mit Haupt- und Nebenstrompfad
DE102020210342A1 (de) 2020-08-14 2022-02-17 Siemens Aktiengesellschaft Verbesserte Vakuumschaltröhre
DE102020212377A1 (de) * 2020-09-30 2022-03-31 Siemens Aktiengesellschaft Kompakte Vakuumschaltröhre

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640038A1 (de) * 1966-05-27 1970-09-10 English Electric Co Ltd Vakuumschalterkontakte
US3646294A (en) * 1970-12-31 1972-02-29 Itt Switch
GB1309197A (en) * 1971-10-28 1973-03-07 Int Standard Electric Corp Vacuum interrupter contacts
US3769538A (en) * 1972-03-20 1973-10-30 Gen Electric Vacuum arc devices with ferrous electrodes
US3824359A (en) * 1972-10-06 1974-07-16 Mc Graw Edison Co Vacuum loadbreak switch
US3825789A (en) * 1973-06-29 1974-07-23 Gen Electric Vacuum arc devices with hard, ductile, ferrous electrodes
JPS50157827A (fr) * 1974-06-11 1975-12-20
DE2522525A1 (de) * 1975-05-21 1976-12-02 Driescher Eltech Werk Lasttrennschalter, insbesondere fuer den betrieb in einem mittelspannungsbereich
DE2638700C3 (de) * 1976-08-27 1983-11-10 Siemens AG, 1000 Berlin und 8000 München Elektrischer Vakuumschalter
JPS5736733A (fr) * 1980-08-14 1982-02-27 Tokyo Shibaura Electric Co
JPS5848321A (ja) * 1981-09-16 1983-03-22 株式会社明電舎 真空しや断器
DE3611270C2 (de) * 1986-04-04 1995-08-17 Sachsenwerk Ag Elektrische Schalteinrichtung für hohe Schaltspannungen

Also Published As

Publication number Publication date
EP0435865A1 (fr) 1991-07-10
US5168139A (en) 1992-12-01
WO1990003657A1 (fr) 1990-04-05
DE3832493A1 (de) 1990-03-29
DE3883258D1 (de) 1993-09-16
KR900702551A (ko) 1990-12-07
JPH04500740A (ja) 1992-02-06

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