EP0155376A1 - Disposition de contact pour interrupteur à vide - Google Patents

Disposition de contact pour interrupteur à vide Download PDF

Info

Publication number
EP0155376A1
EP0155376A1 EP84115139A EP84115139A EP0155376A1 EP 0155376 A1 EP0155376 A1 EP 0155376A1 EP 84115139 A EP84115139 A EP 84115139A EP 84115139 A EP84115139 A EP 84115139A EP 0155376 A1 EP0155376 A1 EP 0155376A1
Authority
EP
European Patent Office
Prior art keywords
contact
slots
contacts
contact arrangement
axis
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
EP84115139A
Other languages
German (de)
English (en)
Other versions
EP0155376B1 (fr
Inventor
Bernt-Joachim Dr. Paul
Roman Dr. Renz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6228967&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0155376(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0155376A1 publication Critical patent/EP0155376A1/fr
Application granted granted Critical
Publication of EP0155376B1 publication Critical patent/EP0155376B1/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
    • H01H33/6642—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 contact arrangement for vacuum switches with coaxially opposite and in their axial direction relatively movable pot contacts, the hollow cylindrical contact carrier contain slots inclined in the same direction to the axis and each provided with a contact plate sinc.
  • the maximum breaking capacity of vacuum switches is given by the maximum values of the current that can be safely switched off and the recurring voltage after the arc is broken off and can be favorably influenced by a magnetic field parallel to the direction of the arc current.
  • a contraction of the Licntboaens which leads to an increase in the arc voltage and the power consumption associated with this voltage, can be prevented by a coaxial magnetic field in the area of the arc between the opened contacts.
  • a coil which encloses the switching chamber cylindrically can be provided in these so-called axial field contacts. It is electrically in series with the switch contacts and builds up an axial magnetic field that is dependent on the current and penetrates the gap between the coaxial contacts in the axial direction.
  • the coil can also be constructed in two layers and the turns can be made helically back and forth. The manufacture of such vacuum switches requires but a relatively large effort.
  • the axial magnetic field between the open contacts is generated by coil windings, which are created by slots in the two contact carriers. These slots have the same direction of rotation for two contacts.
  • the mutually facing end faces of the contact carriers are each covered by the edge of an essentially disk-shaped contact plate. A central area of the contact plate forms the contact contact surface.
  • a support body made of mechanically strong and electrically poorly conductive material can also be provided.
  • the contact plates are generally provided with radial slots to suppress eddy currents (DE-OS 32 27 482).
  • the invention is based on the object of designing a contact arrangement of the type mentioned at the outset so that, on the one hand, a large current carrying capacity is ensured, so that the temperature increase due to the nominal current remains low. At the same time, a homogeneous magnetic field sufficient to extinguish large short-circuit currents is to be generated in the gap between the open contacts during the arc phase. A sufficient effective number of turns is required for this; at the same time, however, the resistance of the segments of the contact carrier acting as a coil formed between the slots must be limited accordingly. In addition, the contact should also be able to be made in a simple manner.
  • the invention is based on the knowledge that the generation of the required magnetic field is only possible within certain ranges of different relationships between the influencing variables determining the magnetic field. Even with a larger contact diameter, such a large and sufficiently homogeneous magnetic field must be ensured that a diffuse arc is obtained and at the same time the arc operating voltage is as small as possible.
  • the wall thickness W of the contact carriers is preferably matched to the diameter D and the pot depth H T in such a way that the contact carriers act like a pair of Helmholtz coils at a medium contact spacing. This creates a particularly homogeneous axial magnetic field in the middle between the contacts.
  • the wall thickness W of the contact carriers acting as coils is preferably chosen to be at least 7 mm and generally not significantly exceed 10 mm.
  • FIGS. 1 and 2 serve to explain the design of the slots of the contact carrier.
  • FIGS. 1 and 2 serve to explain the design of the slots of the contact carrier.
  • two contacts 2 and 4 are arranged coaxially opposite one another with their end faces at a distance A of, for example, 15 mm.
  • Their common axis is indicated by dash-dotted lines in the figure and labeled 5.
  • They each consist of a hollow cylindrical contact carrier 6 or 8 which is connected via a contact base 10 or 12 to a power supply 14 or 16 designed as a bolt.
  • the contacts 2 and 4 each contain a support body 18 or 20 and are each covered with a contact plate 26 or 28. These contact plates are each provided at their edges with a chamfer, not shown in the figure, so that a central part of them forms the contact support surface.
  • the supporting bodies 18 and 20 are each designed as a rotating body, the ends of which are widened in such a way that a cross section results approximately in the shape of a double-T beam.
  • the contact carriers 6 and 8 the outer diameter of which is equal to the diameter D of, for example, 90 mm of the contacts 2 and 4, each contain slots 22 and 24 which are inclined relative to the axis 5 of the contact arrangement and which are in the two contacts 2 and 4 run in the same direction, so that the respective between adjacent slots 22nd or 24 webs 32 or 34 formed continue in the other contact in the same direction.
  • the height H of the contact carriers, insofar as they are provided with slots, forms the pot depth, that is, in the illustrated embodiment of the contacts 2 and 4, the total height H T of the contact carriers 6 and 8, respectively.
  • the slots 22 and 24 can be helical with a constant angle of inclination x.
  • Such slots can be produced with a cylindrical milling cutter, the diameter of which is equal to the slot width and which is at least as long as the wall thickness W of the contact carriers 6 and 8.
  • the contact carrier 6 or 8 is guided helically about its axis 5.
  • the angle of inclination of such helical slots with the azimuth ⁇ that sweeps over each of the slots 22 and 24 is by the relationship connected.
  • Slots with a flat cut surface can be produced in a particularly simple manner, for example by sawing.
  • Such slots with an angle of inclination ⁇ E of the sectional plane 36 against the axis 5 are illustrated in the side view according to FIG. 2, in which only a single plane section 22 is indicated for the sake of simplicity.
  • the angle of inclination ⁇ E of the sectional plane 36 against the axis 5 of the contacts 2 and 4 with an azimuth ⁇ according to FIG. 3 results from the relationship B is the distance which the straight line 30 formed by the cutting plane 36 of the slot 22 and the end face 27 of the contact carrier 6 is from the axis 5.
  • tan ⁇ E becomes a maximum if distance b, diameter D and pot depth H T are specified.
  • the pot depth H T is plotted as a function of the diameter D.
  • the pot depth can be in a range can be chosen, which is given by a lower limit H Tu and an upper limit H To .
  • the pot depth H T can be approximately between 13.5 and 27 mm, as indicated in dashed lines in the diagram.
  • the azimuth ⁇ of the slots 22 and 24 is plotted as a function of the diameter D.
  • An azimuth ⁇ for generating the required specific magnetic induction B z / I 3.5 ⁇ T / A in the middle between the two contacts 2 and 4 is plotted by a family of curves. This specific induction is sufficient to generate a diffuse arc shape even with a high switching current.
  • the parameter of the curves running in a good approximation as a straight line is the number of slots s in each of the contact carriers 6 and 8.
  • the value h T 0.15 D which was preferably still usable and a relatively large slot width of, for example, 2.6 mm was assumed .
  • Corresponding dash-dotted limit line ⁇ u indicates the lower limit of the range for the azimuth ⁇ , which, with suitable values for the number of slots s, the depth of the pot H T and the slot width, enables the generation of the minimum axial field required to increase the switching capacity of the contact arrangement.
  • Corresponding dashed limit line ⁇ o indicates the upper limit of the range for the azimuth ⁇ , which, with suitable values for the number of slots s, the depth of the pot H T and the slot width 2.6 mm, enables the generation of an axial field to be used to increase the switching power.
  • the range to be used for the angle of inclination ⁇ E is obtained from equation (II) by using the range limits specified for the azimuth ⁇ . This gives you the area
  • This slot angle ⁇ lies approximately in the middle of the range which is determined by the limits 66.2 ° for the smallest and 82.2 ° for the largest slot angle.
  • contacts 2 and 4 act at a mutual distance like a pair of Helmholtz coils and thus generate a homogeneous field on axis 5 between contacts 2 and 4.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP84115139A 1984-02-27 1984-12-11 Disposition de contact pour interrupteur à vide Expired EP0155376B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3407088 1984-02-27
DE19843407088 DE3407088A1 (de) 1984-02-27 1984-02-27 Kontaktanordnung fuer vakuumschalter

Publications (2)

Publication Number Publication Date
EP0155376A1 true EP0155376A1 (fr) 1985-09-25
EP0155376B1 EP0155376B1 (fr) 1987-06-03

Family

ID=6228967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115139A Expired EP0155376B1 (fr) 1984-02-27 1984-12-11 Disposition de contact pour interrupteur à vide

Country Status (4)

Country Link
US (1) US4620074A (fr)
EP (1) EP0155376B1 (fr)
JP (1) JPS60205925A (fr)
DE (2) DE3407088A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724811A1 (de) * 1987-07-27 1989-02-09 Bbc Brown Boveri & Cie Kontaktanordnung fuer einen vakuumschalter
DE3724813A1 (de) * 1987-07-27 1989-02-09 Bbc Brown Boveri & Cie Kontaktanordnung fuer einen vakuumschalter
US5064976A (en) * 1989-07-28 1991-11-12 Siemens Aktiengesellschaft Contact configuration for a vacuum interrupter
US5313030A (en) * 1992-04-29 1994-05-17 Siemens Aktiengesellschaft Vacuum switch
WO1998026441A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
EP0747917A3 (fr) * 1995-06-07 1998-07-22 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
WO2001097242A1 (fr) * 2000-06-16 2001-12-20 Siemens Aktiengesellschaft Tube commutateur a vide
WO2001099132A1 (fr) * 2000-06-23 2001-12-27 Siemens Aktiengesellschaft Interrupteurs a vide comprenant deux systemes de protection a contacts
CN1969353B (zh) * 2004-06-30 2010-11-03 西门子公司 用于真空开关管的带有环形支承体的开关触头
EP2261940A1 (fr) * 2009-06-10 2010-12-15 Areva T&D Sas 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
US8164019B2 (en) 2009-06-10 2012-04-24 Areva T&D Sas Contact for a medium-voltage vacuum circuit-breaker with improved arc extinction, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker
US8168910B2 (en) 2009-06-10 2012-05-01 Areva T&D Sas Contact for a medium-voltage vacuum circuit-breaker with reinforced structure, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker
WO2014094724A1 (fr) * 2012-12-19 2014-06-26 Kuckuck Jochen Système de contact pour une compensation de contraction d'arc électrique pour des disjoncteurs
US10418211B2 (en) 2015-09-15 2019-09-17 Siemens Aktiengesellschaft Switching contact of a vacuum interrupter comprising supporting bodies
CN112420444A (zh) * 2020-12-09 2021-02-26 西安交通大学 一种纵向磁场真空灭弧室触头
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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002933A1 (de) * 1990-02-01 1991-08-08 Sachsenwerk Ag Vakuumschaltkammer
US5111008A (en) * 1990-09-13 1992-05-05 Square D Company Effective arc stack/efficient contact carrier
JP3431439B2 (ja) * 1997-03-06 2003-07-28 株式会社日立製作所 絶縁開閉装置
DE19841771C1 (de) * 1998-09-11 2000-04-20 Siemens Ag Vorrichtung zur Stabilisierung eines Plasmas
JP2002334641A (ja) * 2001-05-09 2002-11-22 Meidensha Corp 真空遮断器の電極及びその製造方法
KR100496772B1 (ko) 2001-09-12 2005-06-22 가부시키 가이샤 메이덴샤 진공 차단기용 접촉자 및 이를 이용하는 진공 차단기
JP3840934B2 (ja) 2001-09-12 2006-11-01 株式会社明電舎 真空インタラプタ用接触子及び真空インタラプタ
US6639169B2 (en) * 2001-09-12 2003-10-28 Kabushiki Kaisha Meidensha Contact for vacuum interrupter and vacuum interrupter using the contact
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505699A (fr) * 1965-12-16 1967-12-15 Ass Elect Ind Perfectionnements aux contacts d'interrupteurs dans le vide
GB1098862A (en) * 1963-10-09 1968-01-10 Ass Elect Ind Improvements relating to vacuum switch contact assemblies
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
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1098862A (en) * 1963-10-09 1968-01-10 Ass Elect Ind Improvements relating to vacuum switch contact assemblies
FR1505699A (fr) * 1965-12-16 1967-12-15 Ass Elect Ind Perfectionnements aux contacts d'interrupteurs dans le 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
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724811A1 (de) * 1987-07-27 1989-02-09 Bbc Brown Boveri & Cie Kontaktanordnung fuer einen vakuumschalter
DE3724813A1 (de) * 1987-07-27 1989-02-09 Bbc Brown Boveri & Cie Kontaktanordnung fuer einen vakuumschalter
US5064976A (en) * 1989-07-28 1991-11-12 Siemens Aktiengesellschaft Contact configuration for a vacuum interrupter
US5313030A (en) * 1992-04-29 1994-05-17 Siemens Aktiengesellschaft Vacuum switch
EP0747917A3 (fr) * 1995-06-07 1998-07-22 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
WO1998026441A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
US6307308B1 (en) 1996-12-12 2001-10-23 Siemens Aktiengesellschaft Low pressure gas discharge switch with particular electrode structure
US6891122B2 (en) 2000-06-16 2005-05-10 Siemens Aktiengesellschaft Vacuum switch tubes
DE10029763A1 (de) * 2000-06-16 2002-01-03 Siemens Ag Vakuumschaltröhre
WO2001097242A1 (fr) * 2000-06-16 2001-12-20 Siemens Aktiengesellschaft Tube commutateur a vide
DE10029763B4 (de) * 2000-06-16 2009-01-15 Siemens Ag Vakuumschaltröhre
WO2001099132A1 (fr) * 2000-06-23 2001-12-27 Siemens Aktiengesellschaft Interrupteurs a vide comprenant deux systemes de protection a contacts
CN1969353B (zh) * 2004-06-30 2010-11-03 西门子公司 用于真空开关管的带有环形支承体的开关触头
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.
EP2261940A1 (fr) * 2009-06-10 2010-12-15 Areva T&D Sas 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
US8164019B2 (en) 2009-06-10 2012-04-24 Areva T&D Sas Contact for a medium-voltage vacuum circuit-breaker with improved arc extinction, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker
US8168910B2 (en) 2009-06-10 2012-05-01 Areva T&D Sas Contact for a medium-voltage vacuum circuit-breaker with reinforced structure, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker
US8288674B2 (en) 2009-06-10 2012-10-16 Areva T&D Sas Winding for a contact of a medium-voltage vacuum circuit-breaker with improved endurance, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker
WO2014094724A1 (fr) * 2012-12-19 2014-06-26 Kuckuck Jochen Système de contact pour une compensation de contraction d'arc électrique pour des disjoncteurs
US10418211B2 (en) 2015-09-15 2019-09-17 Siemens Aktiengesellschaft Switching contact of a vacuum interrupter comprising supporting bodies
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
CN112420444A (zh) * 2020-12-09 2021-02-26 西安交通大学 一种纵向磁场真空灭弧室触头

Also Published As

Publication number Publication date
DE3407088A1 (de) 1985-08-29
JPH0359531B2 (fr) 1991-09-10
US4620074A (en) 1986-10-28
EP0155376B1 (fr) 1987-06-03
DE3464103D1 (en) 1987-07-09
JPS60205925A (ja) 1985-10-17

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