EP0062186B1 - Kontaktanordnung für Vakuumschalter - Google Patents

Kontaktanordnung für Vakuumschalter Download PDF

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Publication number
EP0062186B1
EP0062186B1 EP82102093A EP82102093A EP0062186B1 EP 0062186 B1 EP0062186 B1 EP 0062186B1 EP 82102093 A EP82102093 A EP 82102093A EP 82102093 A EP82102093 A EP 82102093A EP 0062186 B1 EP0062186 B1 EP 0062186B1
Authority
EP
European Patent Office
Prior art keywords
contact
contacts
core
casing
contact arrangement
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
Application number
EP82102093A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0062186A1 (de
Inventor
Johann Dipl.-Ing. Wolf
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
Priority to AT82102093T priority Critical patent/ATE14258T1/de
Publication of EP0062186A1 publication Critical patent/EP0062186A1/de
Application granted granted Critical
Publication of EP0062186B1 publication Critical patent/EP0062186B1/de
Expired 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6646—Contacts; Arc-extinguishing means, e.g. arcing rings having non flat disc-like contact surface
    • 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
    • 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
    • H01H33/60—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
    • H01H33/6645—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact in which the coil like electrical connections encircle at least once the contact rod

Definitions

  • the invention relates to a contact arrangement for vacuum switches with two coaxially arranged and essentially cylindrical contacts, the end face of which essentially forms a circular area and which generate an axial magnetic field.
  • a coil enclosing the switching chamber can be provided, which is electrically in series with the switching contacts and which builds up an axial magnetic field which is dependent on the current and penetrates the gap between the contacts.
  • an outer part of the power supply can also be designed as a coil with a plurality of turns which surround the conductor bars. Due to their length, these extended turns also receive a correspondingly increased resistance, which results in a current displacement. The major part of the current thus flows through the central core of the conductor bar (DE-A1-1 959 385).
  • the invention has for its object to provide a design of the contact arrangement with substantially cylindrical contacts, the arc current forms an axial magnetic field in the contact gap, which is concentrated between the contacts and which additionally causes a contact pressure gain in the closed state of the contacts.
  • Contact arrangements for vacuum switches with flat contacts are known, the contact contact surface of which forms a circular area which is surrounded concentrically by a burn-off area.
  • a flat cavity which is provided with a ferromagnetic insert, is provided between the contact contact surface and the electrical connecting conductor of the contact.
  • a radial current component is to be formed by this insert, which extends radially in the form of a disk in relation to the arc, the force component of which is intended to drive the arc radially outward onto the erosion area of the contacts (DE-A - 2 546 375).
  • Vacuum switches with pot contacts are also known, the bottom of which is connected to a power supply and the edge of which forms the annular contact contact surface.
  • the contact carriers of the two contacts surround an iron core, which forms part of the end face, and are provided with opposing oblique slots. This design is based on the task of creating a radial magnetic field, i. H. to produce perpendicular to the current direction in the arc, which allows the arc to rotate between the contacts (DE-C-1 196 751).
  • the arc current creates an axial magnetic field between the contacts, the field strength of which creates a diffuse arc.
  • the jacket shape of the contact according to the invention gives an azimuthal component of the current and thus, to a certain extent, the effect of a coil with an axial magnetic field that is relatively far away from the contact.
  • the ferromagnetic core with a small coercive force for example iron
  • the contact contact surface is designed appropriately, for example as an ellipsoid of revolution, the magnetic field is perpendicular to this surface at all points of the parts of the contact surfaces facing one another. Under practical conditions, the surface must be adapted to the shape of the magnetic field generated by the iron core. This gives you the option of adapting the magnetic field strength to the average current density. Due to the widening contact gap, an ellipsoidal shape of the contact support surfaces enables the steam pressure to be quickly removed from the contact center.
  • an essentially cylindrical contact 2 is connected to a power supply 4.
  • the jacket 6 of the contact 2 is provided with helical slots 8, which give the jacket 6 a torsion bar-like shape and end in front of the closed end face of the contact 2.
  • the end face of the contact 2 is provided with a contact pad 10, which consists of so-called contact material, for example chrome-copper.
  • a contact 3 configured in the same way is arranged coaxially opposite the contact 2 and is shown in FIG. 2, which represents a cross section through the contact.
  • the contacts 2 and 3 are each provided with a ferromagnetic core 12 and 13, respectively.
  • These cores 12 and 13, which extend in the axial direction of the contacts 2 and 3, consist of soft magnetic material, for example iron, and form an essentially axially extending field in the contact gap between the contact supports 10 and 11, which concentrates in the axis 16 of the contacts 2 and 3 and decreases radially outwards from there.
  • This field concentration creates a diffuse arc in the contact gap after opening contacts 2 and 3, which leads to the Lei sales limited. Furthermore, this field concentration results in a correspondingly increased pressing force when the contacts are closed.
  • the jacket 6 is provided with slots 8 which are milled into the contact jacket 6 and whose depth is less than the jacket thickness and which therefore do not extend to the core 12.
  • the screw shape of the parts of the jacket 6 can thus be continued in a vacuum up to the contact support 10 or 11.
  • the jacket of the contact consists of rods 18, which are twisted and arranged concentrically to the core 12. These twisted rods 18 can preferably be electrically insulated from one another by intermediate layers or coverings, not shown in the figure.
  • the jacket 6 is provided with helical inserts 22 made of electrically poorly conductive material, which may consist, for example, of contact material.
  • the depth of these inserts can preferably be selected to be less than the thickness of the jacket 6, so that these inserts 22 end in a radial direction before the core 12.
  • the core consists of a profile body 24 which is elongated in the axial direction and which is provided with ribs or lamellae 26 which form a helix in the axial direction of the contact 2 in the latter and thereby bring about an essentially helical current profile.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Manipulator (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Air Bags (AREA)
  • Keying Circuit Devices (AREA)
EP82102093A 1981-03-26 1982-03-15 Kontaktanordnung für Vakuumschalter Expired EP0062186B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102093T ATE14258T1 (de) 1981-03-26 1982-03-15 Kontaktanordnung fuer vakuumschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3112009 1981-03-26
DE19813112009 DE3112009A1 (de) 1981-03-26 1981-03-26 "kontaktanordnung fuer vakuumschalter"

Publications (2)

Publication Number Publication Date
EP0062186A1 EP0062186A1 (de) 1982-10-13
EP0062186B1 true EP0062186B1 (de) 1985-07-10

Family

ID=6128394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102093A Expired EP0062186B1 (de) 1981-03-26 1982-03-15 Kontaktanordnung für Vakuumschalter

Country Status (9)

Country Link
US (1) US4459446A (enrdf_load_stackoverflow)
EP (1) EP0062186B1 (enrdf_load_stackoverflow)
JP (1) JPS57172622A (enrdf_load_stackoverflow)
AT (1) ATE14258T1 (enrdf_load_stackoverflow)
DE (2) DE3112009A1 (enrdf_load_stackoverflow)
DK (1) DK138482A (enrdf_load_stackoverflow)
FI (1) FI820738A7 (enrdf_load_stackoverflow)
IN (1) IN158122B (enrdf_load_stackoverflow)
NO (1) NO820976L (enrdf_load_stackoverflow)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232708A1 (de) * 1982-08-31 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit schraubenlinienfoermiger strombahn
DE3302595A1 (de) * 1983-01-27 1984-08-02 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Kontaktanordnung fuer vakuumschalter
NL8401005A (nl) * 1983-03-31 1984-10-16 Mc Graw Edison Co Konstruktie van kontakten van een vacuumstroombreker.
US4675483A (en) * 1984-09-10 1987-06-23 Siemens Aktiengesellschaft Contact arrangement for vacuum switches
DE3507317C2 (de) * 1985-03-01 1993-11-18 Siemens Ag Kontaktanordnung für Vakuumschalter
JPS61142620A (ja) * 1984-12-14 1986-06-30 三菱電機株式会社 真空しや断器
GB8510442D0 (en) * 1985-04-24 1985-05-30 Vacuum Interrupters Ltd High current switch contacts
DE3701758A1 (de) * 1987-01-22 1988-08-04 Calor Emag Elektrizitaets Ag Kontaktanordnung fuer einen vakuumschalter
DE3728400C1 (de) * 1987-08-26 1989-03-09 Sachsenwerk Ag Kontaktanordnung fuer Vakuumschalter
US4871888A (en) * 1988-02-16 1989-10-03 Bestel Ernest F Tubular supported axial magnetic field interrupter
DE3943447A1 (de) * 1989-06-02 1990-12-06 Licentia Gmbh Schutz fuer komponenten gasisolierter schaltanlagen bei internen lichtbogenfehlern gegen durchbrennen
DE3917988A1 (de) * 1989-06-02 1990-12-13 Licentia Gmbh Schutz fuer komponenten gasisolierter schaltanlagen bei internen lichtbogenfehlern gegen druchbrennen
DE3920784C2 (de) * 1989-06-24 1994-08-18 Asea Brown Boveri Kontaktanordnung für einen Vakuumschalter
WO1994014177A1 (en) * 1992-12-16 1994-06-23 Nu-Lec Pty. Ltd. Arc extinguishing switch apparatus and method
US5691522A (en) * 1995-06-07 1997-11-25 Eaton Corporation Vacuum interrupter with a single internal assembly for generating an axial magnetic field
DE19714653A1 (de) * 1997-04-09 1998-10-15 Abb Patent Gmbh Kontaktanordnung für eine Vakuumschaltkammer
JP5095591B2 (ja) * 2008-11-27 2012-12-12 株式会社東芝 真空バルブ
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.
CN101916686A (zh) * 2010-08-10 2010-12-15 北京合纵科技股份有限公司 一种基于磁灭弧的sf6负荷开关及安装方法
US8710389B2 (en) * 2011-11-15 2014-04-29 Eaton Corporation Vacuum switch and electrode assembly therefor
DE102012221844A1 (de) * 2012-11-29 2014-06-05 Siemens Aktiengesellschaft Schaltkontakt für Vakuumschaltröhren
US9640353B2 (en) 2014-10-21 2017-05-02 Thomas & Betts International Llc Axial magnetic field coil for vacuum interrupter
CN108320997B (zh) * 2018-03-23 2019-01-08 西安交通大学 多极式横向永磁体结构直流开断真空灭弧室及应用

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054112A (enrdf_load_stackoverflow) * 1900-01-01
CH147768A (de) * 1929-07-15 1931-06-30 Ig Farbenindustrie Ag Verfahren zur Herstellung eines Waschmittels.
US2411893A (en) * 1943-07-08 1946-12-03 Gerhard W Peters Method of controlling arcs
FR1266130A (fr) * 1959-08-28 1961-07-07 Thomson Houston Comp Francaise Perfectionnements aux électrodes d'interrupteur à vide
NL275722A (enrdf_load_stackoverflow) * 1961-03-10
NL299341A (enrdf_load_stackoverflow) * 1964-03-11
US3275777A (en) * 1964-11-25 1966-09-27 Allis Chalmers Mfg Co Multipoint contacts employing the arc rotating principle
US3263050A (en) * 1964-11-25 1966-07-26 Allis Chalmers Mfg Co Electrical contact comprising a plurality of flexible curved wires
US3327081A (en) * 1964-11-25 1967-06-20 Allis Chalmers Mfg Co Contact with high resistance material insert
US3711665A (en) * 1971-02-16 1973-01-16 Allis Chalmers Mfg Co Contact with arc propelling means embodied therein
US3869589A (en) * 1972-05-03 1975-03-04 Westinghouse Electric Corp Vacuum interrupter including contacts having improved weld break characteristics
DE3063033D1 (en) * 1979-03-30 1983-06-16 Siemens Ag Contact arrangement for vacuum switches and process for their manufacture

Also Published As

Publication number Publication date
ATE14258T1 (de) 1985-07-15
IN158122B (enrdf_load_stackoverflow) 1986-09-13
EP0062186A1 (de) 1982-10-13
NO820976L (no) 1982-09-27
FI820738L (fi) 1982-09-27
FI820738A7 (fi) 1982-09-27
US4459446A (en) 1984-07-10
JPS57172622A (en) 1982-10-23
DE3264618D1 (en) 1985-08-14
DK138482A (da) 1982-09-27
DE3112009A1 (de) 1982-10-07

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