EP0082801A1 - Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial - Google Patents

Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial Download PDF

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Publication number
EP0082801A1
EP0082801A1 EP82730139A EP82730139A EP0082801A1 EP 0082801 A1 EP0082801 A1 EP 0082801A1 EP 82730139 A EP82730139 A EP 82730139A EP 82730139 A EP82730139 A EP 82730139A EP 0082801 A1 EP0082801 A1 EP 0082801A1
Authority
EP
European Patent Office
Prior art keywords
ring
vacuum interrupter
switching
piece
interrupter according
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
EP82730139A
Other languages
German (de)
English (en)
Other versions
EP0082801B1 (fr
Inventor
Karl Dr. rer. nat. Zückler
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0082801A1 publication Critical patent/EP0082801A1/fr
Application granted granted Critical
Publication of EP0082801B1 publication Critical patent/EP0082801B1/fr
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
    • H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact
    • 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

Definitions

  • the invention relates to a vacuum switching height with two relatively movable, arranged on carrier bolts switching pieces of cylindrical disc-shaped form, on the back of which is arranged a galvanically open ring to generate an axially directed magnetic field, which is connected to the carrier bolt by a radially extending conductor piece.
  • a vacuum interrupter of this type is e.g. B. became known through the publication 80 SM 700-5 IEEE PAS Summer Meeting 1980.
  • the ring has approximately the same outer diameter as the actual switching piece and is divided in the circumferential direction into quadrants, each of which is connected to a conductor piece starting from the center, via which the current flows from the carrier bolt to the quadrants.
  • the free ends of the quadrants of the ring are provided with elevations.
  • the contact piece is radially slotted several times to suppress eddy currents in the zero current crossing.
  • these slots limit the switching capacity of the vacuum interrupter because arcs tend to remain on edges and cause increased burn-up with the corresponding formation of metal vapor.
  • the invention has for its object to provide a contact piece arrangement with an uninterrupted running surface for the arc using a ring axially adjacent to the contact piece as a field winding.
  • the inner diameter of the ring corresponds approximately to the outer diameter of the switching piece, and the ring has a single parting line, from which the conductor piece connected to the carrier bolt and an other conductor piece leading to the center of the switching piece branches off immediately adjacent.
  • the conductor pieces triangular in cross section, such that both conductor pieces together fill a rectangle. If the spreading current forces occurring between the conductor pieces form a problem, the conductor pieces can also be arranged such that there is a distance in the circumferential direction between the junction points in the ring. Furthermore, it is advisable to fill the parting line of the ring at least locally with non-conductive or poorly conductive support bodies in order to increase the mechanical stability.
  • this fastening element can be made from a non-conductive or poorly conductive material.
  • Fig. 1 shows a vacuum interrupter schematically in a longitudinal section, wherein each contact piece is provided with a ring designed according to the invention as a field winding.
  • FIGS. 2 and 3 show an axial section, specifically in FIG. 3 transversely to the radial conductor pieces of the ring and in FIG. 4 in the longitudinal direction of these conductor pieces.
  • Fig. 4 is a plan view of a ring as a single part.
  • FIG. 5 shows a switching piece with an associated ring pulled apart in a perspective view.
  • the ring which differs from FIGS. 2, 3 and 4, is shown separately in the top view in FIG. 6.
  • FIG. 7 shows an axial sectional view corresponding approximately to FIG. 3 of a switching element arrangement which additionally has a support ring.
  • the vacuum interrupter 1 has a vacuum-tight housing 2, which comprises two end-side, essentially hollow cylindrical insulating bodies 3 and 4 made of a ceramic material and a central hollow metal cylinder 5.
  • a movable carrier pin 6 protrudes upward from the housing 2 and is sealed off from the housing 2 by a bellows 7.
  • the carrier pins 6 and 1 0 serve as a support of a moving contact assembly 11 and a fixed contact piece assembly 12, the matching construction will be described in more detail below.
  • Each of the contact piece arrangements 11 and 12 has the structure shown in FIG. 2 with reference to the contact piece arrangement 12.
  • the actual switching element 14 is a so-called pot contact with a closed running surface, as described for example in DE-A-26 38 700.
  • Essential components of the switching element 14 are a cup-shaped body 15 made of copper, which is provided with oblique slots 16 on its edge.
  • the annular edge of the body 15 is covered with an unslit ring 17, which consists of a chrome-copper composite.
  • a field winding is assigned to the contact piece 14, which has the shape of a ring 20, the inside diameter of which corresponds approximately to the outside diameter of the contact piece 14.
  • This ring is provided with a parting line 21 running obliquely to the ring plane, on the two sides of which two radial conductor pieces in the form of spokes 22 and 23 open into the ring.
  • the spokes 22 and 23 are electrically insulated from one another (FIG. 3). Arrows indicate that the current flowing through the carrier bolt 10 first enters the ring 20 through the spoke 22, flows through the ring and is then conducted back through the spoke 23 to the center of the ring. At this point there is an electrical connection to the bottom 24 of the contact piece 14, through which the current reaches the actual ring-shaped contact area.
  • the one flowing through the galvanically open ring 20 generates Current is an axially directed magnetic field, which is already effective on the outer edge of the race 17 due to the coordination of the diameter of the contact piece 14 and the ring 20.
  • This magnetic field has the effect of counteracting the contraction of a diffuse arc discharge into a concentrated arc channel.
  • the switching capacity of a vacuum interrupter can be increased considerably as a result of the fact that the race 14 is heated less locally and less metal vapor is released.
  • the arrangement of the oblique slots 16 also contributes to this, which, in conjunction with corresponding opposing slots of the associated further switching element arrangement 11, not shown in FIG. 2, causes the arc to move rapidly over the contact surface of the race 17.
  • a particularly favorable interaction between the slotted switching element 14 and the ring 20 occurs when the slots 16 are designed so that they extend as far as possible into the pot bottom 24 into the center. Then eddy currents, which cause a phase-shifted and thus disturbing magnetic field in the zero crossing of the current, are largely suppressed.
  • the arrangement of the slots can be seen in particular in FIG. 5, where they are designated by 42.
  • the contact piece 14 and the ring 20 are arranged axially immediately adjacent.
  • support bodies 24 are arranged which are made of a poorly conductive or non-conductive material, e.g. B. made of ceramic, to support the two parts against each other and electrically isolate.
  • Similar support bodies 25 are located in the parting line 21 between the spokes 22 and 23, which start from the parting line 21 of the ring 20. An area however, there is firm contact between the spoke 23 and the bottom 24 of the contact piece 14, because here the current is transferred to the contact piece.
  • the arrangement is held together by a screw 27 which extends through the bottom 24 of the contact piece 14 and the central part of the spokes 22 and 23 and is screwed into a threaded blind hole 30 of the support bolt 10.
  • the corresponding lower end 31 of the screw 27 is designed to be thickened such that there is no contact on the remaining length between the screw 27 and the spokes and the blind hole of the support bolt 10. Thus, only a small part of the current can flow directly from the carrier pin 10 to the switching piece 14, which is lost for the generation of the desired axial magnetic field. If the screw 27 is made of a material with poor electrical conductivity, the loss mentioned can be reduced further.
  • the spokes 22 and 23 are traversed by the current in the opposite direction. This leads to repulsive forces that can be absorbed in a suitable manner. For example, this can be done by arranging one or more screws or similar fasteners 32 shown in FIG. 3.
  • the current forces acting on the spokes 22 and 23 can be made even more manageable if, instead of the triangular cross-sectional shape according to FIG. 3, which together forms a triangle, at least part of the radial length of the spokes is designed with a rectangular shape, whereby the joint between them is parallel to the contact piece level.
  • the repulsive forces then only act in the axial direction, while in the case of FIG. 3 shown form of the spokes also have a tangential component, which act in the sense of an expansion of the ring. In both cases, however, the spokes lie one above the other in the plan view corresponding to FIG. 4.
  • the contact pieces of vacuum interrupters are exposed to considerable mechanical stress during operation. If there should be reason to make the contact arrangements described so far mechanically particularly robust, this can be done by a support ring as shown in FIG. 7.
  • the contact piece arrangement as such corresponds to FIGS. 2 and 3.
  • the carrier pin 45 is provided with a shoulder 46 on which a z. B. from a ceramic material support ring 47 rests.
  • the support ring 47 is provided with a recess 50 on which the ring 20 serving as a field winding rests.
  • the impact forces acting on the switching element and this ring when switched on do not therefore have to be absorbed by these parts alone, but are guided via the support ring 47 to the carrier bolt 45. Under certain circumstances, it may be sufficient to use a supporting body which acts in the same way instead of a closed supporting ring and, starting from an annular hub, has radial arms on which the ring serving as a field winding rests at individual points.
  • the vacuum interrupter can be relatively easy to adapt in this way given by the application requirements' of the switching capacity.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP82730139A 1981-12-23 1982-11-23 Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial Expired EP0082801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813151907 DE3151907A1 (de) 1981-12-23 1981-12-23 Vakuumschaltroehre mit einem ring zur erzeugung eines axialen magnetfeldes
DE3151907 1981-12-23

Publications (2)

Publication Number Publication Date
EP0082801A1 true EP0082801A1 (fr) 1983-06-29
EP0082801B1 EP0082801B1 (fr) 1986-07-30

Family

ID=6150008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82730139A Expired EP0082801B1 (fr) 1981-12-23 1982-11-23 Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial

Country Status (4)

Country Link
US (1) US4445015A (fr)
EP (1) EP0082801B1 (fr)
JP (1) JPS58111231A (fr)
DE (2) DE3151907A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144916A (en) * 1983-08-09 1985-03-13 Vacuum Interrupters High current switch contacts
EP0143735A1 (fr) * 1983-09-02 1985-06-05 Siemens Aktiengesellschaft Dispositif de contact pour interrupteurs sous vide
EP0163593A1 (fr) * 1984-04-26 1985-12-04 Siemens Aktiengesellschaft Disposition de contact pour un interrupteur sous vide
GB2174549A (en) * 1985-04-24 1986-11-05 Vacuum Interrupters High current switch contacts
DE3724425A1 (de) * 1987-07-23 1989-02-02 Sachsenwerk Ag Kontaktanordnung fuer einen vakuum-leistungsschalter
DE3728400C1 (de) * 1987-08-26 1989-03-09 Sachsenwerk Ag Kontaktanordnung fuer Vakuumschalter
EP0525354A1 (fr) * 1991-06-17 1993-02-03 Mitsubishi Denki Kabushiki Kaisha Tube interrupteur à vide
EP0763841A3 (fr) * 1995-09-16 1998-05-20 ABBPATENT GmbH Agencement de contact pour interrupteur à vide
EP2551878A1 (fr) * 2011-07-23 2013-01-30 ABB Technology AG Ensemble de contact pour disjoncteur à vide
WO2014031428A1 (fr) * 2012-08-20 2014-02-27 Eaton Corporation Ensemble contact et commutateur à vide le contenant
DE102021210859A1 (de) 2021-09-28 2023-03-30 Siemens Aktiengesellschaft Gehäuse für eine Vakuumschaltröhre

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
DE3235298A1 (de) * 1982-09-21 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit ringteil und diametralem steg der schaltstuecke
DE3323627A1 (de) * 1983-06-30 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Topffoermiges schaltkontaktstueck fuer einen elektrischen vakuumschalter
DE3334493A1 (de) * 1983-09-23 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
JPS60246521A (ja) * 1984-05-22 1985-12-06 三菱電機株式会社 開閉器
US4717797A (en) * 1984-12-18 1988-01-05 Siemens Aktiengesellschaft Contact arrangement for a vacuum switching tube
DE3510981A1 (de) * 1985-03-22 1985-10-31 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter - erregerkontaktanordnung
US4847456A (en) * 1987-09-23 1989-07-11 Westinghouse Electric Corp. Vacuum circuit interrupter with axial magnetic arc transfer mechanism
DE4033811A1 (de) * 1990-10-24 1992-04-30 Sachsenwerk Ag Vakuumschalter
DE4112113A1 (de) * 1991-04-10 1991-11-07 Slamecka Ernst Kontaktanordnung fuer vakuumschalter
DE4341714A1 (de) * 1993-12-05 1994-04-28 Slamecka Ernst Vakuumschalter-Kontaktanordnung
WO1996009637A1 (fr) * 1994-09-22 1996-03-28 Ernst Slamecka Systeme de contact pour commutateur a vide
US8653396B2 (en) 2011-09-28 2014-02-18 Eaton Corporation Vacuum switch and hybrid switch assembly therefor
GB2508913A (en) * 2012-12-14 2014-06-18 Leslie Thomas Falkingham Vacuum switch contact assembly
DE102015202867A1 (de) * 2015-02-18 2016-08-18 Siemens Aktiengesellschaft Kontaktvorrichtung für einen Vakuum-Leistungsschalter
US9552941B1 (en) 2015-08-24 2017-01-24 Eaton Corporation Vacuum switching apparatus and electrical contact therefor
US9922777B1 (en) 2016-11-21 2018-03-20 Eaton Corporation Vacuum switching apparatus and electrical contact therefor
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
US10410813B1 (en) 2018-04-03 2019-09-10 Eaton Intelligent Power Limited Vacuum switching apparatus and electrical contact therefor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1428446A (fr) * 1964-03-16 1966-02-11 Thomson Houston Comp Francaise Perfectionnements aux électrodes des interrupteurs de circuits
US3591743A (en) * 1968-11-13 1971-07-06 Mc Graw Edison Co Vacuum-type circuit interrupter with flexible, weld-breaking contact structure
US3818164A (en) * 1971-09-16 1974-06-18 Tokyo Shibaura Electric Co Vacuum type electric circuit breaker
FR2235469A1 (fr) * 1973-06-30 1975-01-24 Tokyo Shibaura Electric Co
DE2443141A1 (de) * 1973-09-10 1975-07-31 Tokyo Shibaura Electric Co Vakuumunterbrecher oder -schutzschalter
GB2002177A (en) * 1977-07-27 1979-02-14 Vacuum Interrupters Ltd Vacuum interrupters
US4196327A (en) * 1976-12-06 1980-04-01 Hitachi, Ltd. Vacuum interrupter
GB2038098A (en) * 1978-11-30 1980-07-16 Westinghouse Electric Corp Vacuum-type circuit interrupters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1528777A (en) * 1975-01-10 1978-10-18 Westinghouse Electric Corp Cup-shaped contacts for vacuum interrupters having a continuous annular contact surface
JPS5239177A (en) * 1975-09-25 1977-03-26 Hitachi Ltd Vacuum breaker electrode
DE2638700C3 (de) * 1976-08-27 1983-11-10 Siemens AG, 1000 Berlin und 8000 München Elektrischer Vakuumschalter
DE2911706A1 (de) * 1979-03-24 1980-10-02 Sachsenwerk Licht & Kraft Ag Vakuumschalter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1428446A (fr) * 1964-03-16 1966-02-11 Thomson Houston Comp Francaise Perfectionnements aux électrodes des interrupteurs de circuits
US3591743A (en) * 1968-11-13 1971-07-06 Mc Graw Edison Co Vacuum-type circuit interrupter with flexible, weld-breaking contact structure
US3818164A (en) * 1971-09-16 1974-06-18 Tokyo Shibaura Electric Co Vacuum type electric circuit breaker
FR2235469A1 (fr) * 1973-06-30 1975-01-24 Tokyo Shibaura Electric Co
DE2443141A1 (de) * 1973-09-10 1975-07-31 Tokyo Shibaura Electric Co Vakuumunterbrecher oder -schutzschalter
US4196327A (en) * 1976-12-06 1980-04-01 Hitachi, Ltd. Vacuum interrupter
GB2002177A (en) * 1977-07-27 1979-02-14 Vacuum Interrupters Ltd Vacuum interrupters
GB2038098A (en) * 1978-11-30 1980-07-16 Westinghouse Electric Corp Vacuum-type circuit interrupters

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144916A (en) * 1983-08-09 1985-03-13 Vacuum Interrupters High current switch contacts
EP0143735A1 (fr) * 1983-09-02 1985-06-05 Siemens Aktiengesellschaft Dispositif de contact pour interrupteurs sous vide
US4617434A (en) * 1983-09-02 1986-10-14 Siemens Aktiengesellschaft Contact arrangement for a vacuum interrupter
EP0163593A1 (fr) * 1984-04-26 1985-12-04 Siemens Aktiengesellschaft Disposition de contact pour un interrupteur sous vide
GB2174549A (en) * 1985-04-24 1986-11-05 Vacuum Interrupters High current switch contacts
GB2174549B (en) * 1985-04-24 1989-12-06 Vacuum Interrupters High current switch contacts
DE3724425A1 (de) * 1987-07-23 1989-02-02 Sachsenwerk Ag Kontaktanordnung fuer einen vakuum-leistungsschalter
DE3728400C1 (de) * 1987-08-26 1989-03-09 Sachsenwerk Ag Kontaktanordnung fuer Vakuumschalter
EP0525354A1 (fr) * 1991-06-17 1993-02-03 Mitsubishi Denki Kabushiki Kaisha Tube interrupteur à vide
US5293506A (en) * 1991-06-17 1994-03-08 Mitsubishi Denki Kabushiki Kaisha Vacuum switch tube including windmill electrodes
EP0763841A3 (fr) * 1995-09-16 1998-05-20 ABBPATENT GmbH Agencement de contact pour interrupteur à vide
EP2551878A1 (fr) * 2011-07-23 2013-01-30 ABB Technology AG Ensemble de contact pour disjoncteur à vide
WO2013013794A1 (fr) * 2011-07-23 2013-01-31 Abb Technology Ag Ensemble contact pour disjoncteur à vide
US9330868B2 (en) 2011-07-23 2016-05-03 Abb Technology Ag Contact assembly for a vacuum circuit breaker
WO2014031428A1 (fr) * 2012-08-20 2014-02-27 Eaton Corporation Ensemble contact et commutateur à vide le contenant
DE102021210859A1 (de) 2021-09-28 2023-03-30 Siemens Aktiengesellschaft Gehäuse für eine Vakuumschaltröhre
WO2023051992A1 (fr) 2021-09-28 2023-04-06 Siemens Aktiengesellschaft Boîtier pour interrupteur à vide

Also Published As

Publication number Publication date
DE3272374D1 (en) 1986-09-04
EP0082801B1 (fr) 1986-07-30
DE3151907A1 (de) 1983-06-30
JPS58111231A (ja) 1983-07-02
US4445015A (en) 1984-04-24

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