EP0175181A2 - Disposition de contact pour interrupteur à vide - Google Patents

Disposition de contact pour interrupteur à vide Download PDF

Info

Publication number
EP0175181A2
EP0175181A2 EP85110768A EP85110768A EP0175181A2 EP 0175181 A2 EP0175181 A2 EP 0175181A2 EP 85110768 A EP85110768 A EP 85110768A EP 85110768 A EP85110768 A EP 85110768A EP 0175181 A2 EP0175181 A2 EP 0175181A2
Authority
EP
European Patent Office
Prior art keywords
contact
profile body
arrangement according
contact arrangement
support body
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.)
Withdrawn
Application number
EP85110768A
Other languages
German (de)
English (en)
Other versions
EP0175181A3 (fr
Inventor
Rudolf Gebel
Bernt Dr. Paul
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
Priority claimed from DE19843433155 external-priority patent/DE3433155A1/de
Priority claimed from DE3507317A external-priority patent/DE3507317C2/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0175181A2 publication Critical patent/EP0175181A2/fr
Publication of EP0175181A3 publication Critical patent/EP0175181A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/185—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Definitions

  • the invention relates to a contact arrangement for vacuum holders with contacts arranged coaxially opposite one another, whose contact carriers each form a side wall of a cylindrical chamber and are provided with slots inclined in the same direction to the axis in the two contacts and are each covered with a contact disk.
  • Such contacts form a coaxial magnetic field.
  • the jacket of the contacts has been designed as a helix, which has the same direction of rotation in the two contacts and through which the current to be switched flows in the same direction.
  • the torsion bar-like jacket shape of the contact gives an azimuthal component of the current which generates an axial magnetic field between the contacts, the field strength of which causes a diffuse arc shape.
  • the contacts each contain a coaxial core made of ferromagnetic material. These iron cores concentrate a magnetic field in the contact gap, which decreases in a radial direction from the contact axis (DE-OS 3112009).
  • approximately cup-shaped flat pot contacts are provided, the contact carriers of which surround a cylindrical chamber as side walls, each of which is covered by a contact disk.
  • the Axiatfetd is obtained by inclined slits in the contact carriers with respect to the axis, with the direction of rotation in the same direction in the two contacts.
  • a support body is provided between the contact disk and the contact base, which can consist of essentially radially arranged sheets of ferromagnetic material. This support body thus also brings about a field concentration in the region of the contacts near the axis (DE-OS 3227482).
  • the invention has for its object to improve a contact arrangement of the type mentioned in that a largely homogeneous magnetic field between the opened contacts is produced by special design features.
  • the invention is based on the knowledge that a field concentration in the near-axis area must be avoided and it consists in the characterizing features of claim 1. With this design, one obtains a largely homogenization of the axial magnetic field in the radial direction between the opened contacts up to close to the contact edges .
  • the ferromagnetic profile body provides an amplification of the magnetic field in the radial direction to the edge of the contacts and thus an approximately uniformly distributed magnetic field over the diameter of the contacts.
  • the profile body can be provided on its end face facing the contact disk in the central region with a recess in which the cut edge of its cross section results in a curve in the axial direction or also steps. It can also consist of a hole in which there may also be a hole additional support body made of non-magnetic material can be arranged.
  • a mechanically stable, electrically insulating support of the profile body on the side of the contact carrier base can be generated by an insulating, preferably flat ring.
  • a centrally arranged support body can connect the contact disk to the concave side of the profile body. In this way, forces can be absorbed which stress the contact disk and the contact carrier.
  • a profile body designed as a ring can also be provided, which can preferably surround a support body and which can optionally be separated from the contact base by an electrically insulating intermediate layer.
  • an electrically conductive contact between the support body and the profile body can be restricted to a narrow area.
  • the profile body can be provided with radial slots to suppress eddy currents.
  • the profile body On its end face facing the bottom of the contact, the profile body can be provided with at least one annular disk-shaped elevation, which serves as a bearing surface on the bottom of the contact.
  • the end of the profile body facing the contact disk can be provided with a flange-like extension which protrudes into a corresponding recess in the contact carrier.
  • This provides a mechanical holder for the profile body.
  • this flange-like extension can protrude so far into the contact carrier that the magnetic field is thereby also significantly increased in the region of the contact edge.
  • FIG. 1 shows an embodiment of a contact
  • the profile body is provided with a recess whose cross section forms a curve.
  • the profile body is provided with a step-shaped recess and with a flange-like extension.
  • FIG. 3 shows a profile body in which the cavity contains a support body
  • annular profile body is provided.
  • a contact with a further design of the profile body is schematically illustrated in FIG. 5.
  • the course of the magnetic field is shown in a diagram in FIG. Figure 7 shows schematically the assignment of the profile body to the diagram.
  • a contact for vacuum switches essentially consists of a hollow cylindrical contact carrier 2, a contact disk 4 and a contact base 6 which is fastened to a power supply 8 in the form of a cylindrical bolt.
  • the contact carrier 2 is provided with slots which are inclined with respect to the rotational axis of the contact, which is not described in any more detail, in such a way that the parts formed between the slots each form a coil element for the current.
  • These slots 10 are inclined in the same direction with a further contact of the contact arrangement, which is not shown in the figure, so that an axial magnetic field arises within the contacts and between the opened contacts.
  • the contact carrier 2 forms the side wall of a hollow cylindrical chamber, not shown in the figure, in which a ferromagnetic profile body 12 is arranged, which forms a cavity 16 at its end facing the contact disk 4 through a concave recess.
  • the axial magnetic field is stretched in the radial direction by this profile body and thus the magnetic field is distributed approximately uniformly over the diameter of the contacts.
  • the recess can be designed, for example, as a hollow cone or as a hollow ball section.
  • a profile body 13 is provided, the end of which faces the contact disk 4 is provided with a recess which forms a cavity 17 which widens in steps from the axis in the radial direction in the radial direction.
  • the profile body 13 is provided at its end facing the contact disk 4 with a flange-like extension 23, which projects into a corresponding, unspecified recess of the contact carrier 2 and serves as a holder for the profile body.
  • the height H of the profile body 13 is less than the depth T of the pot formed by the contact base 6 and contact carrier 2.
  • the outer diameter of the profile body 13 can be dimensioned somewhat smaller than the inner diameter of the contact carrier 2. In this embodiment, a shunt of the current through the profile body 13 is practically excluded.
  • a profile body 14 is provided which forms a cavity 18 in which a support body 26 made of at least poorly conductive and non-magnetic material is arranged.
  • This profile body 14 is provided at its end facing the bottom 6 of the contact with annular projections 24, which serve for support on the bottom 6 of the contact and correspondingly reduce the contact surface of the profile body 14 on the bottom 6. Therefore, a shunt of the current over the profile body 14 is significantly reduced.
  • an approximately annular profile body 15 is provided, which can preferably also surround an additional support body 27.
  • This support body consists of non-magnetic Mate nal. for example stainless steel, and optionally made of electrically insulating material, for example ceramic.
  • An electrical shunt of the current over the profile body 15 is prevented by an electrically insulating intermediate layer 28 in the form of an annular disk.
  • the outer diameter of the support body 27 is slightly smaller than the inner diameter of the profile body 15, so that an electrically conductive contact between the support body 27 and the profile body 15 is limited to a narrow area below the contact disk 4.
  • the flange-like extension 23 of the profile body 15 projects so far into the contact carrier 2 that the axial magnetic field is thereby increased in the region of the outer edge of the contacts.
  • the shunt caused by the non-magnetic support body 27 is only about 5% of the total current.
  • a contact for vacuum switches essentially consists of the hollow cylindrical contact carrier 2 of the contact disk 4 and the contact base 6, which is fastened to the power supply 8 in the form of a cylindrical bolt.
  • the contact carrier 2 is provided with the slots 10.
  • the contact carrier 2 forms the side wall of a chamber which surrounds a cavity 20 and which contains a ferromagnetic profile body 16 which is essentially shell-shaped, but is provided with an elevation 34 in the region near the axis.
  • This increase 34 results in a reduced “pole shoe distance” in the area near the axis for the axial magnetic field, as a result of which a more homogeneous current load on the contact surface and thus a correspondingly increased switching capacity of the contact arrangement are obtained.
  • a support body 36 or 37 is arranged, which consist of poorly conductive, non-magnetic material, for example of stainless steel.
  • FIG. 7 shows the two profiles of the profile body 16 mt corresponding in the diagram according to FIG. 6 and without the elevation 34 and their assignment to the diagram.
  • the angle of inclination of the slots 10 can be chosen smaller than in an embodiment without the ferromagnetic profile body. The effort is reduced accordingly for the production of the slots 10. The additional effort for the production of the ferromagnetic profile body 12 to 16 and the insulating ring 28 is partially compensated.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP85110768A 1984-09-10 1985-08-27 Disposition de contact pour interrupteur à vide Withdrawn EP0175181A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3433155 1984-09-10
DE19843433155 DE3433155A1 (de) 1984-09-10 1984-09-10 Kontaktanordnung fuer vakuumschalter
DE3507317 1985-03-01
DE3507317A DE3507317C2 (de) 1985-03-01 1985-03-01 Kontaktanordnung für Vakuumschalter

Publications (2)

Publication Number Publication Date
EP0175181A2 true EP0175181A2 (fr) 1986-03-26
EP0175181A3 EP0175181A3 (fr) 1988-08-17

Family

ID=25824578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110768A Withdrawn EP0175181A3 (fr) 1984-09-10 1985-08-27 Disposition de contact pour interrupteur à vide

Country Status (2)

Country Link
US (1) US4675483A (fr)
EP (1) EP0175181A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613450A1 (de) * 1986-04-21 1987-10-22 Siemens Ag Kontaktanordnung fuer vakuumschalter
GB2209094A (en) * 1987-08-26 1989-04-26 Sachsenwerk Licht & Kraft Ag Contact means for a vacuum switch
DE3907897A1 (de) * 1989-03-09 1989-10-19 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfelderregung
GB2174549B (en) * 1985-04-24 1989-12-06 Vacuum Interrupters High current switch contacts
EP0747917A2 (fr) * 1995-06-07 1996-12-11 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
CN101459013B (zh) * 2008-12-25 2012-07-04 湖北汉光科技股份有限公司 一种低回路电阻的纵向磁场电极的真空开关管
EP3323137B1 (fr) * 2015-09-15 2022-09-28 Siemens Aktiengesellschaft Contact de commutation d'un tube commutateur à vide pourvu de corps de support

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387771A (en) * 1993-04-08 1995-02-07 Joslyn Hi-Voltage Corporation Axial magnetic field high voltage vacuum interrupter
KR100361390B1 (ko) * 1994-11-16 2003-02-19 이턴 코포레이션 진공차단기,진공차단기용접점코일조립체및원주전극코일의제조방법
FR2727565B1 (fr) * 1994-11-29 1997-01-17 Schneider Electric Sa Interrupteur electrique, notamment sous vide
US5777287A (en) * 1996-12-19 1998-07-07 Eaton Corporation Axial magnetic field coil for vacuum interrupter
EP1102288A1 (fr) * 1999-11-16 2001-05-23 ABBPATENT GmbH Pièce de contact pour l'utilisation dans un champ magnétique axial d'une chambre à vide
WO2008137471A2 (fr) * 2007-05-02 2008-11-13 Ambrx, Inc. Polypeptides d'interféron bêta modifiés et leurs utilisations
JP2014049353A (ja) * 2012-08-31 2014-03-17 Toshiba Corp 固体絶縁スイッチギヤおよび固体絶縁スイッチギヤの真空バルブ
US10643808B2 (en) * 2018-10-09 2020-05-05 S&C Electric Company Vacuum switching devices
US10796867B1 (en) 2019-08-12 2020-10-06 Eaton Intelligent Power Limited Coil-type axial magnetic field contact assembly for vacuum interrupter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062186A1 (fr) * 1981-03-26 1982-10-13 Siemens Aktiengesellschaft Disposition de contacts pour interrupteur à vide
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
EP0104384A1 (fr) * 1982-08-25 1984-04-04 Siemens Aktiengesellschaft Dispositif de contact d'un interrupteur à vide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082307A (en) * 1959-04-30 1963-03-19 Gen Electric Vacuum type circuit interrupter
DE3232708A1 (de) * 1982-08-31 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit schraubenlinienfoermiger strombahn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062186A1 (fr) * 1981-03-26 1982-10-13 Siemens Aktiengesellschaft Disposition de contacts pour interrupteur à vide
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
EP0104384A1 (fr) * 1982-08-25 1984-04-04 Siemens Aktiengesellschaft Dispositif de contact d'un interrupteur à vide

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174549B (en) * 1985-04-24 1989-12-06 Vacuum Interrupters High current switch contacts
DE3613450A1 (de) * 1986-04-21 1987-10-22 Siemens Ag Kontaktanordnung fuer vakuumschalter
GB2209094A (en) * 1987-08-26 1989-04-26 Sachsenwerk Licht & Kraft Ag Contact means for a vacuum switch
DE3907897A1 (de) * 1989-03-09 1989-10-19 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfelderregung
EP0747917A2 (fr) * 1995-06-07 1996-12-11 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
EP0747917A3 (fr) * 1995-06-07 1998-07-22 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
CN101459013B (zh) * 2008-12-25 2012-07-04 湖北汉光科技股份有限公司 一种低回路电阻的纵向磁场电极的真空开关管
EP3323137B1 (fr) * 2015-09-15 2022-09-28 Siemens Aktiengesellschaft Contact de commutation d'un tube commutateur à vide pourvu de corps de support

Also Published As

Publication number Publication date
EP0175181A3 (fr) 1988-08-17
US4675483A (en) 1987-06-23

Similar Documents

Publication Publication Date Title
EP0175181A2 (fr) Disposition de contact pour interrupteur à vide
DE2601529C2 (de) Magnetische Lagerung der Drehwelle der Drehanode für eine Röntgenröhre
EP0155376B1 (fr) Disposition de contact pour interrupteur à vide
DE2947090C2 (fr)
EP0082801B1 (fr) Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial
EP0104384B1 (fr) Dispositif de contact d'un interrupteur à vide
EP0210473B1 (fr) Cathode de pulvérisation selon le principe magnétron
DE4002933C2 (fr)
DE4135939C2 (fr)
DE3227482A1 (de) Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
DE3011415A1 (de) Roentgenroehre mit magnetisch gelagerter drehanode
DE3112009A1 (de) "kontaktanordnung fuer vakuumschalter"
DE3433155A1 (de) Kontaktanordnung fuer vakuumschalter
EP0298981A1 (fr) Systeme de contacts pour interrupteur a vide avec champ magnetique axial.
EP0017076B1 (fr) Agencement de contact pour interrupteur à vide et méthode pour sa fabrication
DE2638700C3 (de) Elektrischer Vakuumschalter
DE3507317C2 (de) Kontaktanordnung für Vakuumschalter
DE69831386T2 (de) Kontaktanordnung für Vakuumschalter mit Magnetelement für die longitudinale Magnetisierung
DE2901554C2 (fr)
DE1613119C3 (de) Unipolarmaschine
EP0410049B1 (fr) Arrangement de contacts d'un interrupteur à vide
DE3334493A1 (de) Kontaktanordnung fuer vakuumschalter
DE2453845B2 (de) Wanderfeldröhre
DE3915519C2 (fr)
DE2116164A1 (de) Kollektor für eine dynamoelektrische Maschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB LI NL SE

17P Request for examination filed

Effective date: 19880906

17Q First examination report despatched

Effective date: 19900510

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910308

R18W Application withdrawn (corrected)

Effective date: 19910308

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PAUL, BERNT, DR.

Inventor name: GEBEL, RUDOLF