EP0715324B1 - Interrupteur électrique, notamment sous vide - Google Patents

Interrupteur électrique, notamment sous vide Download PDF

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Publication number
EP0715324B1
EP0715324B1 EP95410129A EP95410129A EP0715324B1 EP 0715324 B1 EP0715324 B1 EP 0715324B1 EP 95410129 A EP95410129 A EP 95410129A EP 95410129 A EP95410129 A EP 95410129A EP 0715324 B1 EP0715324 B1 EP 0715324B1
Authority
EP
European Patent Office
Prior art keywords
contact
crown
sectors
arcing
conducting
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
EP95410129A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0715324A1 (fr
Inventor
Hans Schneider Electric Schellekens
Roger Schneider Electric Bolongeat-Mobleu
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0715324A1 publication Critical patent/EP0715324A1/fr
Application granted granted Critical
Publication of EP0715324B1 publication Critical patent/EP0715324B1/fr
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
    • H01H33/664—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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact

Definitions

  • the present invention relates to a switch intended to ensure breaking in a circuit electric and mainly comprising an elongated vacuum cartridge, said cartridge comprising a cylindrical envelope closed by two bottoms and containing two contacts arc, one of which, fixed, is secured to one of the aforementioned funds while the other, mobile, is mounted for axial sliding inside the cartridge between a closed position and a position of separation of the contacts causing the formation of an arc current, and means for producing an axial magnetic field in the region of the arc.
  • the applicant's patent FR 2,677,487 describes an electrical switch of the kind mentioned, in which the axial magnetic field is generated by the flowing current a coil integral with the bottom of the cartridge and arranged coaxially with this cartridge at right of the arcing contact separation interval.
  • Patent application EP 0597434 shows a switch according to the preamble of claim 1.
  • the present invention solves this problem and proposes an electrical switch, in particular vacuum container of particularly simple design.
  • the present invention relates to an electrical switch, according to claim 1.
  • the conductive portions are crown sectors, the sectors associated with the fixed arcing contact being angularly offset from those associated with the moving arcing contact.
  • the aforementioned conductive portions came integrally with the parts contact and formed at the periphery of said parts.
  • each arcing contact comprises a crown sector.
  • each arcing contact comprises two sectors of crown, diametrically opposite.
  • each arcing contact comprises three crown sectors equidistant.
  • each contact piece is in the form of crown, said crown being constituted by the aforementioned conductive crown sectors and non-conducting crown sectors.
  • the abovementioned non-conducting crown sectors are produced in a insulating or refractory material.
  • a vacuum bulb interrupter I comprising mainly an insulating casing 1 of cylindrical shape closed by two metal bottoms 2, 3 and containing two arcing contacts 4, 5 respectively fixed and mobile extending coaxially inside said envelope 1.
  • One of the contacts, said to be fixed, is integral with one of the 2 aforementioned funds 2, 3 of the envelope 1, while the other 5 of the contacts, said mobile, is slidably mounted through the other 3 of the two bottoms 2, 3.
  • This movable contact 5 is moved into translation by a control mechanism not shown, between a closed position allowing the passage of current between the contacts 4, 5 and a separation position (shown in Figure 1) in which an arc current "c" occurs between the contacts 4, 5 before obtaining the cut.
  • the two arcing contacts 4, 5 have the same structure and are each constituted by a rod conductive 6, 7 comprising at one of its ends a contact piece 8, 9 in the form of disc shaped with said rod 6, 7. On the free end 8a, 9a of this piece in disc shape 8, 9 is fixed a conductive electrode 10, 11 in the form of a crown, the diameter is slightly greater than that of the disc-shaped part 8, 9.
  • the means used to produce a axial magnetic field in the arc formation zone include means M carried by the arcing contacts 4, 5, to impose on the arcing current a path inclined by relative to the plane P of the contact surfaces 4a, 5a of the arcing contacts 4, 5.
  • each contact piece 8, 9 is shaped into a ring 37, said ring 37 being formed at the periphery of the contact pieces 8, 9 and comprising conductive crown sectors 12 to 23 and non-conductive or poorly conductive crown sectors 25 to 36.
  • the crown 37 of each part 8, 9 is formed by three conductive sectors 18 to 23 and three non-conductive sectors 28, 29, 30 and 34,35,36
  • Figures 2 and 3 illustrate contact parts 8, 9 whose end in the form of a crown 37 consists by a single conductive crown sector 12, 13 and an insulating crown sector 25,31. In this case, as can be seen in FIG.
  • the two respective conducting sectors 12, 13 of the two contact parts 8, 9 will be placed so as to be diametrically opposite.
  • the contact pieces 8, 9 each comprise two conductive sectors 14, 15, 16, 17 and two non-conductive sectors 26, 27 and 32.33.
  • the two conductive sectors 14 to 17 of each part 8, 9 are arranged so as to be diametrically opposite and the two parts 8, 9 are arranged relative to each other so that the two diameters d, e, according to which sectors are placed on the two parts 8, 9 are perpendicular.
  • the conductive sectors 18 to 23 and the non-conductive sectors 28, 29, 30 and 34, 35, 36 are three in number and are equidistant, the conductive sectors 18 to 23 of the two parts 8, 9 being arranged to be angularly offset.
  • the operation of the switch in its three embodiments will be described briefly through the following with reference to the figures.
  • the arc current "c" passes from the crown sector 12 associated with the fixed contact 4 to the crown sector 13 associated with the movable contact 5, passing through the electrodes 10, 11 according to an inclined path as shown in dotted lines in FIG. 3.
  • the horizontal component of this current that is to say parallel to the contact surfaces 4a, Sa of the arcing contacts 4, 5, then generates a localized axial field , making it possible, by maintaining several small arches, to spread the arc.
  • the rod 6, 7, the contact piece 8, 9 as well as the conductive sectors 12 to 23 of each arcing contact 4, 5 advantageously forming a one-piece assembly will be preferably made of copper.
  • the electrodes 10, 11 will advantageously be made in one conductive material based on chromium and copper, while the non-conductive sectors 25 to 36 will be made of an insulating or refractory material.
  • an electrical switch has therefore been produced, in particular under vacuum, cutting in the axial field, of particularly simple design since it does not requires no additional means of producing an axial field and that the geometry and therefore the structure of the arcing contacts remains particularly simple.
  • the invention is not limited to the embodiments described and illustrated which have been given by way of example only. This is how, for example, we could consider that the conductive sectors are made on the electrodes rather than on the pieces of contact. Similarly, we could remove the non-conductive sectors, especially in the case or each contact piece comprises at least two conductive sectors.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP95410129A 1994-11-29 1995-11-10 Interrupteur électrique, notamment sous vide Expired - Lifetime EP0715324B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9414430A FR2727565B1 (fr) 1994-11-29 1994-11-29 Interrupteur electrique, notamment sous vide
FR9414430 1994-11-29
US08/653,242 US5726406A (en) 1994-11-29 1996-05-24 Electrical vacuum switch

Publications (2)

Publication Number Publication Date
EP0715324A1 EP0715324A1 (fr) 1996-06-05
EP0715324B1 true EP0715324B1 (fr) 2002-05-08

Family

ID=26231579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95410129A Expired - Lifetime EP0715324B1 (fr) 1994-11-29 1995-11-10 Interrupteur électrique, notamment sous vide

Country Status (5)

Country Link
US (1) US5726406A (es)
EP (1) EP0715324B1 (es)
DE (1) DE69526631T2 (es)
ES (1) ES2176300T3 (es)
FR (1) FR2727565B1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727565B1 (fr) * 1994-11-29 1997-01-17 Schneider Electric Sa Interrupteur electrique, notamment sous vide
FR2946791B1 (fr) * 2009-06-10 2011-09-23 Areva T & D Sa Contact pour ampoule a vide a moyenne tension a structure renforcee, ampoule a vide et disjoncteur, tel qu'un disjoncteur sectionneur d'alternateur associes.
FR2946792A1 (fr) * 2009-06-10 2010-12-17 Areva T & D Sa Enroulement pour contact d'ampoule a vide a moyenne tension a endurance amelioree, ampoule a vide et disjoncteur, tel qu'un disjoncteur sectionneur d'alternateur associes.
FR2946790B1 (fr) * 2009-06-10 2011-07-01 Areva T & D Sa Contact pour ampoule a vide a moyenne tension a coupure d'arc amelioree, ampoule a vide et disjoncteur, tel qu'un disjoncteur sectionneur d'alternateur associes.
RU2449405C1 (ru) * 2010-11-15 2012-04-27 Холдинговая компания "Новосибирский Электровакуумный Завод - Союз" в форме открытого акционерного общества Контактное устройство вакуумной дугогасительной камеры
AU2013202778A1 (en) * 2013-03-14 2014-10-02 Gen-Probe Incorporated Systems, methods, and apparatuses for performing automated reagent-based assays
US20230178315A1 (en) * 2020-06-17 2023-06-08 Mitsubishi Electric Corporation Vacuum valve
RU203212U1 (ru) * 2020-11-30 2021-03-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет", ФГБОУ ВО "СибГИУ" Контактное устройство вакуумной дугогасительной камеры

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809836A (en) * 1972-12-21 1974-05-07 Gen Electric Vacuum-type electric circuit interrupter
SE392781B (sv) * 1973-09-10 1977-04-18 Tokyo Shibaura Electric Co Vakuumbrytare
JPS5826132B2 (ja) * 1978-11-22 1983-06-01 株式会社日立製作所 真空しや断器
US4260864A (en) * 1978-11-30 1981-04-07 Westinghouse Electric Corp. Vacuum-type circuit interrupter with an improved contact with axial magnetic field coil
DE3206823A1 (de) * 1982-02-23 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit einem als feldwicklung dienenden ring
DE3232708A1 (de) * 1982-08-31 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit schraubenlinienfoermiger strombahn
US4675483A (en) * 1984-09-10 1987-06-23 Siemens Aktiengesellschaft Contact arrangement for vacuum switches
JPH0731966B2 (ja) * 1985-07-12 1995-04-10 株式会社日立製作所 真空しや断器
US4839481A (en) * 1988-02-16 1989-06-13 Cooper Industries, Inc. Vacuum interrupter
FR2677487B1 (fr) 1991-06-10 1993-09-03 Merlin Gerin Interrupteur electrique sous vide.
JP2643036B2 (ja) * 1991-06-17 1997-08-20 三菱電機株式会社 真空スイッチ管
FR2682808B1 (fr) 1991-10-17 1997-01-24 Merlin Gerin Disjoncteur hybride a bobine de soufflage axial.
JP2861757B2 (ja) 1992-11-10 1999-02-24 三菱電機株式会社 真空バルブの電極装置
FR2727565B1 (fr) * 1994-11-29 1997-01-17 Schneider Electric Sa Interrupteur electrique, notamment sous vide

Also Published As

Publication number Publication date
DE69526631D1 (de) 2002-06-13
FR2727565B1 (fr) 1997-01-17
US5726406A (en) 1998-03-10
ES2176300T3 (es) 2002-12-01
EP0715324A1 (fr) 1996-06-05
FR2727565A1 (fr) 1996-05-31
DE69526631T2 (de) 2002-11-21

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