EP0088040A1 - Interrupteur à vide avec un anneau agissant comme enroulement à champ magnétique - Google Patents

Interrupteur à vide avec un anneau agissant comme enroulement à champ magnétique Download PDF

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Publication number
EP0088040A1
EP0088040A1 EP83730011A EP83730011A EP0088040A1 EP 0088040 A1 EP0088040 A1 EP 0088040A1 EP 83730011 A EP83730011 A EP 83730011A EP 83730011 A EP83730011 A EP 83730011A EP 0088040 A1 EP0088040 A1 EP 0088040A1
Authority
EP
European Patent Office
Prior art keywords
ring
contact
support plate
vacuum interrupter
contact 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.)
Granted
Application number
EP83730011A
Other languages
German (de)
English (en)
Other versions
EP0088040B1 (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
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 EP0088040A1 publication Critical patent/EP0088040A1/fr
Application granted granted Critical
Publication of EP0088040B1 publication Critical patent/EP0088040B1/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

Definitions

  • a vacuum interrupter with these features is known from the essay IEEE Transaction on Power Apparatus and Systems, 1980, pages 2079-2085.
  • the mode of operation of such switching element arrangements is based on the generation of an axially directed magnetic field which counteracts a contraction of partial arcs to form a spatially concentrated arc discharge.
  • the contracted arc is associated with a large anode spot and relatively high operating voltage as well as high power conversion, which leads to melting of the contacts and strong material evaporation.
  • the object of the invention is to create a vacuum which also works with an axial magnetic field To design the tube so that the switch assemblies receive the greatest possible mechanical stability with increased switching capacity.
  • the support plate reinforces the contact piece arrangements without disturbing the current distribution required to generate the magnetic field or the magnetic field itself.
  • Chromium-nickel steels for example, have suitable properties.
  • the location of the current transfer points on the edge of the contact body leads to a largely uniform stress on the existing contact surface.
  • the support plate It is advisable to provide the support plate with recesses for the passage of the raised current transition points. Because of the location of the current transfer points in the course of the ring, the cutouts can be open towards the edge and are therefore particularly easy to produce.
  • FIGS. 1 to 6 show a contact piece arrangement in the disassembled state. 1, 3 and 5, parts cut in the middle are shown in perspective view, while the same parts in FIGS. 2, 4 and 6 are shown completely in plan view. 1 and 2 show a contact plate, FIGS. 3 and 4 a support plate and FIGS. 5 and 6 show an inner body with a ring serving as a field winding and elevations serving as current transfer points.
  • Fig. 7 shows a portion of a switch assembly in the fully assembled state in a perspective view.
  • FIG. 8 A vacuum interrupter with contact piece arrangements according to the invention is shown schematically in FIG. 8.
  • a contact body 2 which consists of a contact plate 3 as the actual contact-protecting element and a carrier 4.
  • the contact plate 3 can, for. B. be made of a special contact material, as it is preferably used for vacuum interrupters, for example a chrome-copper composite or copper with the addition of bismuth or tellurium.
  • the carrier 4, however, consists of pure copper and has the shape of a very flat pot.
  • the pot bottom 5 is connected to the contact plate 3 in a conductive manner, e.g. B. by soldering.
  • the pot jacket 6 serves to center the contact body 2 on the inner body to be described with reference to FIG. 5.
  • the outer diameter of the support body 4 corresponds to the diameter of the contact plate 3.
  • the edge 7 of the Contact plate 3 is chamfered and rounded, as shown in FIG. 1.
  • the support plate 10 Below the supporting body 4 there is a support plate 10, the diameter of which is reduced compared to the inside diameter of the carrier 4. At its edge, the support plate 10 is provided with two diagonally opposite cutouts 11, through which a current transition point extends in the fully assembled state of the switching element arrangement 1. In each case four spacers 12 are distributed around the circumference of the support plate 10 on its top and bottom, while a further spacer 12 is provided in the center of the support plate on its bottom. The number and the distribution of the spacers can be chosen differently according to the size and the stress of the switching elements.
  • the support plate 10 consists of a mechanically high-strength material which is non-ferromagnetic and poorly conductive at the same time. These properties are shown, for example, by chrome-nickel steels.
  • spacers 12 blocks made of a ceramic material are suitable which are electrically non-conductive and have a high compressive strength.
  • the support plate 10 is shown in FIG. 3 as a disk-shaped body, other designs are also possible which have the highest possible mechanical strength with a low weight.
  • the support plate can for example be corrugated or waffle-like profiled.
  • the support plate can be perforated with a lattice-like structure. be.
  • the inner body can also consist of interconnected individual parts to which the power supply bolts are attached.
  • the ring part 16 On its end face 21 which faces the contact body 2, the ring part 16 has two elevations 22 which lie diagonally opposite one another and which serve as current transfer points to the contact body 2.
  • the diameter line on which the elevations 22 lie is perpendicular to the longitudinal axis of the central web 17.
  • the recesses 11 of the support plate 10 are dimensioned such that a contact-free passage of the elevations 22 is ensured. 2, the areas of contact of the elevations 22 with the pot base 5 are shown in broken lines.
  • the individual parts described above can be seen in their final position.
  • the parts are provided with the reference numerals previously used.
  • the cohesion is ensured in that the contact body 2 with the elevations 22 z. B. is connected by soldering.
  • the contact body 2 is therefore able to withstand the strong forces which occur when interacting with the same contact piece arrangement within a vacuum interrupter.
  • FIGS. 1, 5 and 6. 5 it is shown how a current i entering the current supply bolt 20 is first divided into two partial currents of the same size, which are conducted via the central web 17 to the ring part 16.
  • a current i entering the current supply bolt 20 is first divided into two partial currents of the same size, which are conducted via the central web 17 to the ring part 16.
  • both partial flows then flow through the carrier 4 and the contact plate 3 to one or more starting points of switching arcs.
  • the arc discharge is exposed to an axially directed magnetic field, the direction of which changes from quadrant to quadrant, as can be seen from the arrows 23, 24, 25 and 26 shown in FIG. 6.
  • This different polarity of the magnetic fields in the four quadrants of the ring part 16 is associated with the property that at the time of the zero current crossing only a very weak field is generated, in particular near the axis of the switching element arrangements, and thus the eddy currents are low.
  • the charge carriers are hardly held in place in the zero current crossing and can therefore diffuse largely unhindered from the space between the contact piece arrangements. Additional measures to suppress eddy currents, such as. B. a slit of the carrier 4 or the contact plate 3 are therefore unnecessary.
  • Fig. 8 shows schematically a vacuum interrupter 30 with switching piece arrangement of the type described in section.
  • the housing 31 has a central part 32 made of metal and hollow insulating bodies 33 and 34 adjoining it on both sides.
  • In the evacuated interior of the housing 31 there are two contact arrangement 1 according to FIG. 7. While the lower contact arrangement with its power supply pin 35 is stationary, the upper contact arrangement with its power supply pin 36 can be moved in the axial direction for switching on and off.
  • a bellows 38 is arranged between the upper housing flange 3 7 and the power supply bolt 35.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP83730011A 1982-02-23 1983-02-01 Interrupteur à vide avec un anneau agissant comme enroulement à champ magnétique Expired EP0088040B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3206823 1982-02-23
DE19823206823 DE3206823A1 (de) 1982-02-23 1982-02-23 Vakuumschaltroehre mit einem als feldwicklung dienenden ring

Publications (2)

Publication Number Publication Date
EP0088040A1 true EP0088040A1 (fr) 1983-09-07
EP0088040B1 EP0088040B1 (fr) 1985-09-11

Family

ID=6156685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83730011A Expired EP0088040B1 (fr) 1982-02-23 1983-02-01 Interrupteur à vide avec un anneau agissant comme enroulement à champ magnétique

Country Status (4)

Country Link
US (1) US4504711A (fr)
EP (1) EP0088040B1 (fr)
JP (1) JPS58157017A (fr)
DE (2) DE3206823A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104134A2 (fr) * 1982-09-21 1984-03-28 Siemens Aktiengesellschaft Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact
DE3416368A1 (de) * 1984-04-30 1984-12-13 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung
DE3510981A1 (de) * 1985-03-22 1985-10-31 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter - erregerkontaktanordnung
DE3610241A1 (de) * 1986-03-26 1987-10-01 Siemens Ag Kontaktanordnung fuer vakuumschalter mit axialem magnetfeld
FR2727565A1 (fr) * 1994-11-29 1996-05-31 Schneider Electric Sa Interrupteur electrique, notamment sous vide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102017214451A1 (de) * 2017-08-18 2019-02-21 Siemens Aktiengesellschaft Vakuum-Schaltkammer für einen Hochspannungsleistungsschalter und Verfahren zum Aufbau der Vakuum-Schaltkammer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764764A (en) * 1971-01-11 1973-10-09 Hitachi Ltd Vacuum circuit breaker
US4117288A (en) * 1976-06-25 1978-09-26 Westinghouse Electric Corp. Vacuum type circuit interrupter with a contact having integral axial magnetic field means
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555204A (en) * 1978-05-27 1980-01-16 Mitsubishi Heavy Ind Ltd Manufacturing method of box type construction
JPS5826132B2 (ja) * 1978-11-22 1983-06-01 株式会社日立製作所 真空しや断器
JPS57205927A (en) * 1981-06-12 1982-12-17 Tokyo Shibaura Electric Co Vacuum bubl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764764A (en) * 1971-01-11 1973-10-09 Hitachi Ltd Vacuum circuit breaker
US4117288A (en) * 1976-06-25 1978-09-26 Westinghouse Electric Corp. Vacuum type circuit interrupter with a contact having integral axial magnetic field means
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104134A2 (fr) * 1982-09-21 1984-03-28 Siemens Aktiengesellschaft Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact
EP0104134A3 (fr) * 1982-09-21 1986-10-22 Siemens Aktiengesellschaft Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact
DE3416368A1 (de) * 1984-04-30 1984-12-13 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung
DE3510981A1 (de) * 1985-03-22 1985-10-31 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter - erregerkontaktanordnung
DE3610241A1 (de) * 1986-03-26 1987-10-01 Siemens Ag Kontaktanordnung fuer vakuumschalter mit axialem magnetfeld
FR2727565A1 (fr) * 1994-11-29 1996-05-31 Schneider Electric Sa Interrupteur electrique, notamment sous vide
EP0715324A1 (fr) * 1994-11-29 1996-06-05 Schneider Electric Sa Interrupteur électrique, notamment sous vide
US5726406A (en) * 1994-11-29 1998-03-10 Schneider Electric Sa Electrical vacuum switch

Also Published As

Publication number Publication date
EP0088040B1 (fr) 1985-09-11
JPS58157017A (ja) 1983-09-19
US4504711A (en) 1985-03-12
DE3360739D1 (en) 1985-10-17
DE3206823A1 (de) 1983-09-01

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