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EP1766646A1 - Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide - Google Patents

Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide

Info

Publication number
EP1766646A1
EP1766646A1 EP05750585A EP05750585A EP1766646A1 EP 1766646 A1 EP1766646 A1 EP 1766646A1 EP 05750585 A EP05750585 A EP 05750585A EP 05750585 A EP05750585 A EP 05750585A EP 1766646 A1 EP1766646 A1 EP 1766646A1
Authority
EP
European Patent Office
Prior art keywords
contact pieces
contact
pieces
vacuum interrupter
arrangement 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
EP05750585A
Other languages
German (de)
English (en)
Other versions
EP1766646B1 (fr
Inventor
Alexander Steffens
Dietmar Gentsch
Kaveh Niayesh
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP05750585.1A priority Critical patent/EP1766646B1/fr
Publication of EP1766646A1 publication Critical patent/EP1766646A1/fr
Application granted granted Critical
Publication of EP1766646B1 publication Critical patent/EP1766646B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main 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
    • H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves

Definitions

  • the invention relates to the field of switch technology, in particular the high and medium voltage switch technology. It relates to a contact arrangement for a vacuum interrupter chamber according to the preamble of claim 1 and to a vacuum interrupter chamber and a. Switching device.
  • Such a contact arrangement and such a vacuum switching chamber are known for example from the published patent application DE 1 97 05 1 58 and from the patent US 4,847,456.
  • the outer contact pieces are electrically connected in parallel and spatially arranged closely adjacent to the inner contact pieces.
  • One of the inner contacts is movably supported while the others Contact pieces are stationary.
  • the outer contact pieces are designed as AMF contact pieces.
  • a further increase in the switching capacity at comparable switch size is desirable.
  • a high short-circuit breaking capacity is desirable.
  • a contact arrangement for a vacuum switch is disclosed with a pair of slotted pot-shaped contact pieces, wherein the pot bottom of the inner pot-shaped contact piece is formed as a part of the pot bottom of the outer pot-shaped contact piece.
  • the inner and outer contact pieces are (at their upper pot edges) spatially widely spaced from each other.
  • a contact arrangement for a vacuum interrupter chamber is known in which slotted pipe sections are provided as inner contact pieces and outer contact pieces.
  • the inner tubular contact piece is slotted so that thereby resilient contact tongues are formed. This is intended to create a plurality of separate mechanical contact points with a defined spring constant become.
  • an additional contact piece is arranged within the inner resilient contact piece, which is provided for carrying operating currents and through which low contact resistance can be realized. When opening the switch, the additional contact piece is first lifted. As a result of the associated increase in resistance at the additional contact piece, the current then flows through the inner resilient contact piece. After lifting the inner resilient contact piece then forms an arc.
  • CB l 145 451 a contact arrangement for a vacuum interrupter chamber is disclosed with three pairs of slotted pot-shaped contact pieces arranged one inside the other.
  • the pairs of contact pieces should be designed so that when a contact separation of the two contact pieces of each of the three pairs of contact pieces ever an arc is ignited and then rotate these three arcs between the two contact pieces of each pair of contact pieces and respectively form a substantially cylindrical arc curtain.
  • a contact arrangement and a vacuum interrupter chamber of the type mentioned which allow an increased switching capacity.
  • Short-circuit current breaking capacity can be achieved at a high arc burning voltage.
  • the contact arrangement should have a low resistance and can carry large currents.
  • An inventive contact arrangement for a vacuum interrupter chamber has a pair of inner contacts formed as RMF contacts and a pair of outer contacts.
  • the outer contact pieces are electrically connected in parallel to the inner contact pieces and spatially arranged closely adjacent to the inner contact pieces. At least one of the inner contact pieces is movably mounted.
  • the outer contact pieces are designed as RMF contact pieces.
  • the inner contact pieces are formed substantially disc-shaped. The inner and the outer contact pieces are arranged and formed such that a resulting in a Ausschaltvorgang between the inner contact pieces arc can commute completely or partially between the outer contact pieces.
  • An RMF contact has the significant advantage over an AMF contact that the current path resistance of the vacuum interrupter chamber at a high contact pressure (up to several thousand Newtons) is at a lower level.
  • the axial magnetic field of the AMF contact is generated by the flowing current, there is a large inductance;
  • the axial magnetic field of the AMF contact is generated by permanent magnets 5, there are large eddy current losses.
  • RMF contacts can be more than 100 V and up to 1 50 V W, while the arc voltage at AMF contacts is typically only 30 V to 50 V and in any case significantly less than 100 V.
  • the switching chamber can carry at least the same current and switch as a switching chamber with only one RMF contact piece pair.
  • outer contact pieces are not formed as a rated current contact pieces, so do not touch when the switch is closed, 0 results in an improved switching performance, since the arc then after the Commutation on the outer contact pieces on a mechanically and thermally unstressed surface of low roughness rotated.
  • each of an inner and an outer contact piece ensures that an arc formed between the inner contact pieces forms an arc between the outer ones
  • the inner contact pieces (substantially) are disc-shaped, a small resistance of the contact arrangement can be achieved, and large currents can be worn.
  • the contact pieces are advantageously formed substantially rotationally symmetrical and provided for generating the radial magnetic field generally with slots. From the literature various possibilities for the formation of such slots and corresponding contact pins are known.
  • slots are advantageously provided only in the radially outer region.
  • the outer contact pieces are advantageously provided with a non-slotted coating of erosion-resistant material.
  • the contact pieces are arranged coaxially with each other.
  • the outer contact pieces are advantageously formed R Kunststoff- or cup-shaped.
  • an inner contact piece is ever arranged within each of an outer contact piece.
  • the second, fixed inner contact piece is advantageously fixed to a fixed contact stem.
  • the two outer contact pieces can be arranged fixed or movable. Either both outer contacts are particularly advantageous fixed, or one is fixed, while the other is movable. In the latter case, the movement of the movable outer contact piece is advantageously coupled to the movement of the movable inner contact piece, advantageously by a rigid connection of the two movable contact pieces.
  • each an inner and outer contact piece is arranged to be movable and they are rigidly connected to each other, advantageously the movable inner contact piece projects beyond the movable outer contact piece in the axial direction. It can also serve both the inner and the outer contacts as rated current contacts.
  • the contact arrangement is designed as a firmly soldered contact system.
  • a high switching capacity can be achieved with a contact arrangement according to the invention and a vacuum interrupter chamber according to the invention.
  • Very high short-circuit currents can be reliably interrupted and high rated currents can be carried.
  • a vacuum switching chamber according to the invention can be provided in a switching device;
  • a vacuum interrupter chamber according to the invention over conventional vacuum interrupters with a comparable
  • Breaking capacity may have smaller dimensions.
  • a switching device can of course be a vacuum switch.
  • the switching device but also be a circuit breaker or a high-power switch and in particular a generator switch, wherein the switching device includes at least one vacuum interrupter chamber, which is typically part of a vacuum switch.
  • Fig. 1 is a partial section through an inventive
  • FIG. 2 is a partial section through an inventive
  • Fig. 3 is a plan view of an inner and an outer contact piece.
  • Fig. 1 shows schematically in partial section an inventive vacuum switching chamber 1 in the open state.
  • inventive vacuum switching chamber 1 in the open state.
  • the vacuum switching chamber 1 is formed substantially rotationally symmetrical with an axis A and includes an inner pair of contact pieces 1 1, 1 2 and an outer contact piece pair 21, 22nd
  • the two contact pieces 1 1 and 21 are movably mounted, while the two contact pieces 1 2 and 22 are fixed.
  • the outer contact pieces 21, 22 are with
  • Slots 26 are provided so that they form an RMF contact piece pair. In the case of a current flowing through the contact pieces 21, 22, therefore, a radially extending magnetic field is generated.
  • the inner contact pieces 1 1, 1 2 are formed as RMF contact pieces and provided with slots, but which are not shown in Fig. 1.
  • the substantially disc-shaped movable contact pieces 1 1 and 21 are attached to a movable contact stem 41.
  • the fixed contact pieces 1 2 and 22 are fixed to a fixed contact stem 42.
  • the described metallic contact arrangement is part of the vacuum interrupter chamber 1, which has an insulating body 50, typically made of ceramic, which is formed as a hollow cylinder and closed at its ends by a cover 71, 72.
  • the movable contact stem 41 is guided by the lid 71 and secured thereto with the interposition of a bellows, not shown in Fig. 1.
  • the fixed contact stem 42 is attached to the lid 72.
  • a shield 60 prevents the insulating body 50 by evaporation, especially with metal vapor from the arc zone between the contact piece pairs 1 1, 21 and 1 2.22 loses its insulating properties and becomes electrically conductive.
  • the inner contact pieces 1 1, 1 2 are on their mutually facing side of a erosion-resistant material, such as Cu / Cr.
  • the outer contact pieces 21, 22 are provided on its side facing each other with a coating 24 made of a erosion-resistant material. This coating 24 is not provided with slots, but forms an unslotted ring.
  • the outer contact pieces 21, 22 are pot-shaped or cup-shaped and each include one of the inner contact pieces 1 1, 1 2.
  • the pot or cup bottom is penetrated by the respective pin 31, 32 and is advantageously not slotted.
  • the movable inner contact piece 1 1 projects beyond the ring formed by the coating of the contact piece 21 in the axial direction by a distance ⁇ . When closed, therefore, the outer contact pieces 21, 22 do not touch each other, but only the inner ones.
  • Contact pieces 1 1, 1 2 serve the vacuum interrupter chamber 1 of FIG. 1 thus as rated current contacts.
  • the inner contact piece 1 2 may project beyond the ring formed by the coating 24 in the axial direction by a distance.
  • Fig. 2 are both outer contacts 21, 22 of the vacuum interrupter chamber 1 ' fixed contact pieces.
  • the outer contact piece 22 is formed predominantly tubular, with a connection 28 to the lid 71 which serves as a contact carrier 28 at the same time. During a switching operation, the distance between the two outer contact pieces 21, 22 does not change from each other. Again, the inner contact pieces 1 1, 1 2 the
  • the mass to be moved during a switching operation is lower in the case of a vacuum interrupter chamber 1 ' according to FIG. 2 than in the case of a vacuum interrupter chamber 1 according to FIG. 1.
  • the two in Figs. 1 and 2 illustrated vacuum switching chambers 1, 1 ' are designed such that they can be soldered in a final soldering. This creates a firmly soldered contact arrangement.
  • Fig. 3 shows a plan view of an inner contact piece 1 2 and an outer contact piece 22 along the in Figs. 1 and 2 designated III level. Concentric about the inner, provided with slots 1 6 contact piece 1 2, the outer contact piece 22 is arranged. Through the slots 1 6 creates a plurality of contact sockets 1 5 of the inner contact piece 1 2. Since the outer contact piece 22 is provided with the annular, non-slotted coating 24, the underlying slots in the contact piece 22 in Fig. 3 are not visible. LIST OF REFERENCE NUMBERS

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un ensemble de contacts pour une ampoule sous vide (1), comportant une paire de contacts intérieurs (11, 12), qui se présentent sous la forme de contacts à champ magnétique radial, ainsi qu'une paire de contacts extérieurs (21, 22), montés électriquement en parallèle et très proches des contacts intérieurs (11, 12). Au moins un des contacts intérieurs (11) est monté de façon mobile. Les contacts extérieurs (21, 22) se présentent également sous la forme de contacts à champ magnétique radial. Lors d'une coupure, l'arc électrique formé peut commuter entièrement ou partiellement sur la paire de contacts extérieurs (21, 22). Les contacts intérieurs sont sensiblement en forme de disque. Tous les contacts (11, 12, 21, 22) sont avantageusement placés coaxialement les uns par rapport aux autres. Les contacts extérieurs (21, 22) présentent avantageusement une forme tubulaire ou la forme d'une cuvette.
EP05750585.1A 2004-07-05 2005-06-22 Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide Active EP1766646B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05750585.1A EP1766646B1 (fr) 2004-07-05 2005-06-22 Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405417 2004-07-05
PCT/CH2005/000348 WO2006002560A1 (fr) 2004-07-05 2005-06-22 Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide
EP05750585.1A EP1766646B1 (fr) 2004-07-05 2005-06-22 Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide

Publications (2)

Publication Number Publication Date
EP1766646A1 true EP1766646A1 (fr) 2007-03-28
EP1766646B1 EP1766646B1 (fr) 2016-05-04

Family

ID=34932183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05750585.1A Active EP1766646B1 (fr) 2004-07-05 2005-06-22 Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide

Country Status (4)

Country Link
US (1) US7906742B2 (fr)
EP (1) EP1766646B1 (fr)
CN (1) CN1981354B (fr)
WO (1) WO2006002560A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006002560A1 (fr) 2004-07-05 2006-01-12 Abb Research Ltd Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide
DE102006042101B4 (de) * 2006-09-07 2008-09-25 Switchcraft Europe Gmbh Vakuumschalter für Mittel- und Hochspannungen
US8248760B2 (en) * 2010-07-07 2012-08-21 Eaton Corporation Switch arrangement for an electrical switchgear
EP2434514A1 (fr) 2010-09-24 2012-03-28 ABB Technology AG Interrupteur sous vide pour agencement de disjoncteur
EP2434513B1 (fr) * 2010-09-24 2019-04-17 ABB Schweiz AG Interrupteur sous vide pour agencement de disjoncteur
KR101115639B1 (ko) 2010-10-18 2012-02-15 엘에스산전 주식회사 진공 인터럽터의 접점 어셈블리
EP2469562A1 (fr) 2010-12-22 2012-06-27 ABB Technology AG Ensemble d'insertion pour un interrupteur de circuit
US8653396B2 (en) * 2011-09-28 2014-02-18 Eaton Corporation Vacuum switch and hybrid switch assembly therefor
FR2991097B1 (fr) 2012-05-24 2014-05-09 Schneider Electric Ind Sas Dispositif de controle d'arc pour ampoule a vide
EP3754684A1 (fr) * 2012-06-11 2020-12-23 ABB Schweiz AG Interrupteur à vide doté d'un agencement de contact coaxial double de chaque côté
EP2731120A1 (fr) * 2012-11-08 2014-05-14 ABB Technology AG Système d'interrupteur à vide pour disjoncteur moyenne tension avec des contacts TMF en forme de coupe
CN103715008B (zh) * 2013-12-03 2016-03-30 西安交通大学 一种纵横复合型真空灭弧室触头结构
CN103762116B (zh) * 2014-01-20 2016-06-22 浙江紫光电器有限公司 一种高压真空灭弧室的触头
CN107180728B (zh) 2016-03-11 2020-08-25 Abb瑞士股份有限公司 固封极柱及其组装方法
CN111261447A (zh) * 2020-01-20 2020-06-09 北京京东方真空电器有限责任公司 一种真空灭弧室触头、真空灭弧室及真空断路器
US11694864B2 (en) * 2020-09-30 2023-07-04 Eaton Intelligent Power Limited Vacuum interrupter with trap for running cathode tracks
FR3118278A1 (fr) * 2020-12-23 2022-06-24 Schneider Electric Industries Sas Contact de coupure électrique

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GB1145151A (en) * 1966-01-05 1969-03-12 Ass Elect Ind Improvements in or relating to vacuum switches
GB1483899A (en) * 1974-12-11 1977-08-24 Ass Elect Ind Vacuum interrupter contacts
JPS52150571A (en) * 1976-06-09 1977-12-14 Hitachi Ltd Vacuum breaker electrode
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DE3009925C2 (de) * 1980-03-14 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Kontaktstück für einen elektrischen Vakuumschalter
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WO2006002560A1 (fr) 2004-07-05 2006-01-12 Abb Research Ltd Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide

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Also Published As

Publication number Publication date
EP1766646B1 (fr) 2016-05-04
WO2006002560A1 (fr) 2006-01-12
US7906742B2 (en) 2011-03-15
CN1981354A (zh) 2007-06-13
CN1981354B (zh) 2011-10-26
US20080067151A1 (en) 2008-03-20

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