EP0435865A1 - 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.

Info

Publication number
EP0435865A1
EP0435865A1 EP88909296A EP88909296A EP0435865A1 EP 0435865 A1 EP0435865 A1 EP 0435865A1 EP 88909296 A EP88909296 A EP 88909296A EP 88909296 A EP88909296 A EP 88909296A EP 0435865 A1 EP0435865 A1 EP 0435865A1
Authority
EP
European Patent Office
Prior art keywords
contact
switch
vacuum interrupter
switching
vacuum
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
EP88909296A
Other languages
German (de)
English (en)
Other versions
EP0435865B1 (fr
Inventor
Hans Bettge
Peter Krueger
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

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
    • 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

  • Vacuum interrupter switch disconnector containing such a switch tube and method for operating such a switch disconnector
  • the invention is in the field of electrical switches and can be used in the design of a vacuum interrupter and in the construction and operation of a switch disconnector which contains such a vacuum interrupter.
  • the vacuum interrupters used for electrical switches - in particular 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 coaxially opposite 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 to the other end cap via a bellows, 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).
  • there are also contact pieces made of ferrous material such as
  • Maraging steel or stainless chrome-nickel steels have proven to be suitable (DE-OS 23 08 913, GB-PS 1 480 285).
  • 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. In order to make better use of the breaking capacity of vacuum interrupters which are used in switch disconnectors, 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 the switch disconnector is switched on, 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).
  • a vacuum interrupter which consists 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 in which one contact bolt directly with one end cap and the other contact bolt a bellows is vacuum-tightly connected to the other end cap
  • the invention is based on the novel object of designing such a vacuum interrupter in such a way that it is essentially tailored only to the function of switching off a load current.
  • the contact bolts are made of chromium-nickel steel and that the end faces of these contact bolts form the contact surfaces of the vacuum interrupter.
  • Such a 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 are used for the contact bolts.
  • the new vacuum interrupter is particularly suitable for use in switch disconnectors.
  • such an assignment of the vacuum interrupter to two knife-like switching contacts and such a switching sequence of the total of three switching contacts is provided that the vacuum interrupter carries no rated current, is not switched on to the short-circuit current and does not need to have a static dielectric strength .
  • one 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 vacuum interrupter and first switching contact, and that when the load disconnector is in operation, the vacuum interrupter when the load disconnector is switched on and in the normal switch-on position of the two switching contacts is kept open, that to switch off the load-break switch the contact of the vacuum interrupter is first closed and then the switching contact arranged in parallel, then the contact of the vacuum interrupter and finally the switching contact arranged in series are opened.
  • Figure 1 shows an exemplary embodiment of the new vacuum interrupter 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 cylinder-shaped 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 lying 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 by means of a vacuum connection 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 further 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 cylindrical contact bolts 4 and 5 which are located coaxially opposite one another and which, when switched on, touch with their mutually facing end faces 41, 51. Except for a slight rounding of the edges • the same time serving as contact members of the contact system and Stromzü arrangement justifybolze no constructive measures are seen vorge at the contact surfaces of the cause affecting aufadd ⁇ during switching the arc.
  • the contact bolts 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 in particular 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 load break switch is to be designed in such a way that in the normal operating state of the switch the switch contact of the vacuum interrupter 10 is opened, that to switch off the load break switch the vacuum switch tube 10 is first switched on parallel to 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 only switched on by closing the switching contacts 11 and 12.
  • Such an operating mode has the advantage that the load-switching tube is not subjected to the switch-on short-circuit current or the rated current and is also not subject to constant static voltage stress. Therefore, only low dielectric, dynamic and thermal requirements have to be placed on the vacuum interrupter will. This makes it possible to manufacture the vacuum interrupter much smaller and more cost-effectively than 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.
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
DE3832493A DE3832493A1 (de) 1988-09-22 1988-09-22 Vakuumschaltroehre, eine solche schaltroehre enthaltender lasttrennschalter und verfahren zum betrieb eines solchen lasttrennschalters
DE3832493 1988-09-22

Publications (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022069199A1 (fr) * 2020-09-30 2022-04-07 Siemens Aktiengesellschaft Interrupteur à vide compact

Families Citing this family (23)

* 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
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
CN103918079B (zh) 2011-09-11 2017-10-31 科锐 包括具有改进布局的晶体管的高电流密度功率模块
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

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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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9003657A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022069199A1 (fr) * 2020-09-30 2022-04-07 Siemens Aktiengesellschaft Interrupteur à vide compact

Also Published As

Publication number Publication date
EP0435865B1 (fr) 1993-08-11
WO1990003657A1 (fr) 1990-04-05
US5168139A (en) 1992-12-01
JPH04500740A (ja) 1992-02-06
DE3832493A1 (de) 1990-03-29
DE3883258D1 (de) 1993-09-16
KR900702551A (ko) 1990-12-07

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