EP1831906B1 - Disjoncteur presentant une ligne de courant de court-circuit resistant au feu - Google Patents

Disjoncteur presentant une ligne de courant de court-circuit resistant au feu Download PDF

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Publication number
EP1831906B1
EP1831906B1 EP05812736A EP05812736A EP1831906B1 EP 1831906 B1 EP1831906 B1 EP 1831906B1 EP 05812736 A EP05812736 A EP 05812736A EP 05812736 A EP05812736 A EP 05812736A EP 1831906 B1 EP1831906 B1 EP 1831906B1
Authority
EP
European Patent Office
Prior art keywords
current
carrying element
heavy
contact
contact piece
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.)
Active
Application number
EP05812736A
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German (de)
English (en)
Other versions
EP1831906A1 (fr
Inventor
David Saxl
Markus Vestner
Thomas Nordstroem
Tomas Borg
Tomas Strom
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 Technology AG
Original Assignee
ABB Technology 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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP05812736A priority Critical patent/EP1831906B1/fr
Publication of EP1831906A1 publication Critical patent/EP1831906A1/fr
Application granted granted Critical
Publication of EP1831906B1 publication Critical patent/EP1831906B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7061—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by use of special mounting means
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials

Definitions

  • the invention relates to the field of high-power switch technology. It relates to a high-performance switch according to the preamble of claim 1.
  • a high power switch which has a contact tulip as arcing contact piece, which forms a flat contact for guiding a short-circuit current with a current-carrying element.
  • a tube made of burn-resistant material is provided which is intended to protect the interior of the contact tulip from hot gas, wherein the gas is heated by an electric arc on the arc contact piece arc and flows through the contact tulip and beyond the current-carrying element ,
  • such a hot gas stream can remove material from the current-carrying element and / or the contact tulip, which can lead to a degradation of the electrical contact between the contact tulip and the current-carrying element. Increasing contact resistance and even interruption of contact may result.
  • the tube of erosion-resistant material is screwed into the current-carrying element and has in the part in which it is disposed within the contact tulip, an outer diameter which is greater than the inner diameter of the contact tulip at the respective location.
  • the gas flow available cross-sectional area decreases greatly. If this cross-sectional area remains approximately constant in order to maintain similar outflow rates, a larger contact tulip and a larger current-carrying element must be provided (for the same, the short-circuit current available cross sections), so that an overall larger high-power switch is the result.
  • a compact, so low external dimensions exhibiting high-performance switch is to be created, which has a low, not by hot gas-induced contact degradation with increasing electrical resistance between an arcing contact piece and a short-circuit current from the arcing contact piece dissipating current-carrying element.
  • the high-performance switch according to the invention with an axis has an arcing contact piece, a current-carrying element and a burn-off protection element.
  • the arcing contact piece has an opening for guiding a substantially axial flow of a gas heated by an arc which may be located on the arcing contact piece.
  • the burn-off protection element the current-carrying element is substantially shielded from the flow near the planar contact.
  • the current-carrying element has an axial region in which a radial inner dimension of the current-carrying element increases progressively or continuously with increasing distance measured parallel to the axis relative to the flat contact.
  • the high-performance switch is characterized in that the axial region for receiving the Abbrandterrorismides is provided and that in the axial region, a radial outer dimension of the Abbrandtikides is adapted to the radial inner dimension of the current-carrying element, wherein the Abbrandtikelement. Is fitted in the current-carrying element. As a result, the radial outer dimension of the high-power switch can be kept very small.
  • the high-performance switch is characterized in that the current-carrying element has an axial (that is, defined by its axial extent) region, at its end facing the flat contact, a radial inner dimension of the current-carrying element is smaller than at the flat contact opposite end.
  • the flat contact facing the end of the area directly on the flat contact or near the surface contact.
  • the invention makes it possible to simultaneously realize a large-area contact between the arcing contact piece and current-carrying element (with correspondingly low contact resistance) and protection against hot-gas-induced contact degradation (on the large-area contact).
  • a very compact construction of the high-performance circuit-breaker and a long service life are made possible in this way.
  • the current-carrying element be chamfered, preferably already from the surface contact with the arcing contact piece.
  • the axial region is advantageously arranged on the side facing away from the arcing contact piece of the flat contact.
  • the axial region is arranged near the arcing contact piece.
  • the current-carrying element and the erosion protection element are designed substantially rotationally symmetrical.
  • the entire high-power switch is designed substantially rotationally symmetrical.
  • the radial outer dimension of the erosion protection element is preferably its outer diameter.
  • the erosion protection element is axially extended up to the arcing contact piece.
  • the erosion protection element may be extended to the arcing contact piece (so that the arcing contact piece and erosion protection element touch one another) or beyond (until there is an area in which the erosion protection element and the arcing contact piece overlap axially).
  • the erosion protection element may also be axially extended (only) to the axial extent of the arcing contact piece (so that the areas of axial extent of arcing contact piece and erosion protection element contact each other without overlapping).
  • the erosion protection element has a more erosion-resistant material than the current-carrying element near the surface contact.
  • at least the hot gas flow side facing the Abbrandtikides of such erosion-resistant material preferably, the whole erosion protection element is made of such a material.
  • Near the planar contact that part of the current-carrying element is arranged, which, if it were exposed to a hot gas flow, particularly rapidly led to a degradation of the contact between the arcing contact piece and current-carrying element. This part is advantageously protected by the erosion-resistant material of Abbrandtikettis against degradation by hot gas.
  • a radial inner dimension of the erosion protection element is substantially equal to a radial inner dimension of the arcing contact element.
  • Particularly advantageous are (within Manufacturing tolerances), the radial inner dimension of the current-carrying element and the radial outer dimension of Abbrandtikettis in the axial region of equal size.
  • a radial inner dimension of the burn-off protection element is substantially the same size as a radial inner dimension of the arcing contact piece.
  • a high-performance switch may have a discharge pipe for guiding the hot gas flow.
  • the outflow tube serves to guide a flow of a gas heated by an arc which may be located on the arcing contact piece.
  • the Abbrandtikelement is connected to the outlet pipe with great advantage.
  • the outflow pipe and the erosion protection element are integrally formed. This facilitates the manufacture and assembly of the heavy-duty circuit breaker.
  • the burn-off protection element is advantageously integrated in the outflow pipe.
  • the current-carrying element is firmly connected to an auxiliary nozzle surrounding the arcing contact piece.
  • the current-carrying element serves to support or hold an insulating nozzle arrangement (comprising at least one main nozzle and at least one auxiliary nozzle), or the current-carrying element is firmly connected or integrally formed with such a support or holder.
  • the surface contact is advantageously aligned substantially radially. At least the surface contact does not extend exclusively along the horizontal coordinate.
  • the current-carrying element and / or the arcing contact piece can be provided with a coating for reducing the contact resistance on a surface contributing to the planar contact, preferably (in each case) over the entire areal surface contact.
  • a coating can be, for example, a silver plating.
  • a nominal current contact system is provided in addition to the arcing contact piece. This carries a rated current in the closed switch state, while after the rated current contact piece separation, the current commutates to an arcing contact system comprising the arcing contact piece. After the separation of the arcing contact system, an arc to be extinguished, the short-circuit current carrying arc is ignited. It is also possible that the arcing contact together with another arcing contact forms a rated current contact system.
  • a high-performance switch is typically designed to carry short-circuit currents between 2 kA and 80 kA at nominal voltages between 10 kV and over 1000 kV, preferably between 30 kV and 550 kV.
  • Fig. 1 shows schematically and cut a section of an inventive high power switch in the open switching state.
  • the high-power switch is substantially rotationally symmetrical with a rotation axis A, by which an axial coordinate designated by z and a radial coordinate designated by r is defined.
  • a nominal current contact system 9 consisting of two rated current contacts 9 was first opened, see FIG in that a current flowing through the switch commutates on an arc contact piece system consisting of two arcing contact pieces 1, 1b. After the separation of the two arcing contact pieces 1,1b, an arc 5 burns between them, and a short-circuit current 1, symbolized by thin open arrows, flows through the two arcing contact pieces 1,1b.
  • the arc contact piece 1 is formed as a contact tulip with a plurality of contact fingers and has an opening 6.
  • An extinguishing gas 4 provided in the switch, for example SF 6 is heated by the arc 5 and forms, optionally together with further gaseous material, a gas flow 4 (symbolized by thick open arrows) which flows through the opening 6.
  • the short-circuit current I flows through a radially oriented flat contact F at the end of the contact tulip 1 in a current-carrying element 2 and from there to the terminals of the switch.
  • a burn-off protection element 3a is provided, which is formed integrally here together with an outflow pipe 3.
  • the current-carrying element 2 is generally made of a less erosion-resistant (heat-resistant) material (for example, aluminum or copper) than the erosion protection element 3a, which may be made of steel or a carbon fiber composite material, for example.
  • the arcing contact piece 1 can be made, for example, from copper, steel or tungsten-copper.
  • the entire bottom surface of the arcing contact piece 1 serves as a contact surface F to the current-carrying element 2, and from there the current-carrying element 2 is protected from the gas flow 4 by the erosion protection element 3 a.
  • suitable materials can be dispensed with additional protection of the arcing contact piece 1 from burning, so that the erosion protection element 3a only the contact surface F and the contact surface near part of the current-carrying element 2 must protect from hot gas.
  • the contact tulip 1 can, as in Fig. 1 shown, be screwed into the current-carrying element 2. By a thread only a negligible current between arcing contact piece 1 and current-carrying element 2 can flow, so that the lateral surface of the contact tulip makes no contribution to the contact surface.
  • the inner diameter d2 of the current-carrying element 2 increases continuously.
  • the outer diameter of the erosion protection element 3a increases.
  • the inner diameter of the Abbrandtikettis 3a is in an axial region 2b (or at least close to the contact surface F) equal to the inner diameter d1 of the arcing contact piece 1 near the contact surface F.
  • the current-carrying element 2 still has the function of holding an insulating auxiliary nozzle 7 and, via a metallic tube (which also carries one of the rated current contact pieces 9), an insulating main nozzle 8. Both arcing contact pieces 1,1 b or only one of the two can be designed to be movable.
  • the arcing contact piece 1, the outflow pipe 3, the current-carrying element 2, the insulating nozzle arrangement 7, 8 and the rated current contact 9 arranged on the insulating nozzle side can be firmly connected to one another.
  • FIG. 1 The other figures show schematically and cut possible embodiments of the area near the surface contact F, as in a high-performance switch according to Fig. 1 or in another switch with an arcing contact piece 1, a current-carrying element 2 and a burn-off protection element 3a are possible.
  • Fig. 2 shows the embodiment Fig. 1 wherein the thread is shown more clearly.
  • the illustration is somewhat idealized, since due to manufacturing tolerances some surfaces may have a small spacing from one another. In connection with Fig. 3 this issue is discussed.
  • the contact piece 1 also, instead of being connected by a thread to the current-carrying element 2, be pressed into this.
  • This is an example of a positive connection.
  • the bevel of Abbrandstoffides 3a may be formed less strong than the chamfer of the current-carrying element 2, as in Fig. 3 is shown.
  • the contact tulip 1 can also have a bevel, as a result of which manufacturing tolerance-related fitting problems of the erosion protection element 3a are prevented. Moreover, in Fig. 3 shown that a blunt-trained end of Abbrandstoffimplantations 3a is providable.
  • Fig. 4 shows a further exemplary realization, as a leading to a low contact resistance contact pressure at the contact surface 6 can be achieved.
  • the arcing contact piece 1 is pressed by means of a union nut 10 or a flange 10 against the current-carrying element.
  • the burn-off protection element 3a can also be arranged separately from the outflow pipe 3.
  • Fig. 5 shows that it is also possible to provide multiple bevels of current-carrying element 2 and / or erosion protection element 3a.
  • Fig. 6 shows that it is also possible to provide the erosion protection element 3a extended with respect to the axial coordinate beyond the extension of the arcing contact piece 1.
  • Fig. 7 shows a further embodiment in which the burn-off protection element 3a is arranged separately from the outflow pipe 3.
  • a stepwise (here in one step, but there are also two, the or more steps conceivable) enlargement of the inner diameter d2 of the current-carrying element 2 can be provided.
  • the Switch is only up to the axis of symmetry A, half the inner diameter, as d2 / 2, indicated.
  • Fig. 8 shows an embodiment in which the erosion protection element 3a and the current-carrying element 2, starting from the flat contact F and in the predetermined by the coordinate z direction first has a constant outer or inner diameter and then a tapered portion in the direction of larger radial coordinates. As a result, improved burn-up resistance is ensured at the expense of a slightly reduced contact surface F.
  • Fig. 9 is similar to the one in Fig. 8 but shows that the surface contact F does not necessarily have to be substantially radially aligned. It can enclose a clearly different angle ⁇ with an axis running along the coordinate r.
  • the angle ⁇ can, as in Fig. 9 shown, be negative, but also positive angles ⁇ are possible.
  • Fig. 10 shows an embodiment in which the inner diameter d3 of Abbrandtikiatas 3a is slightly smaller than the inner diameter d 1 of the arcing contact piece 1.
  • the erosion protection element 3a extends from that side of the contact surface F, to which predominantly adjoins the current-carrying element 3, except for the side of the contact surface F, to which predominantly the arcing contact piece 1 adjoins. An improved protection against erosion at the contact surface F is achieved.
  • a snap mechanism is realized by the formation of Abbrandtikelement 3a and current-carrying element 2 in the region 2a, which serves the mutual attachment of the two parts together.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Control Of Combustion (AREA)

Claims (12)

  1. Commutateur à haute puissance doté d'un axe (A) qui définit une coordonnée axiale (z) parallèle à l'axe et une coordonnée radiale (r) perpendiculaire à l'axe et d'une pièce (1) de contact avec l'arc lumineux, d'un élément (2) de guidage de courant et d'un élément (3a) de protection contre l'érosion,
    la pièce (1) de contact avec l'arc lumineux présentant une ouverture (6) qui guide un écoulement (4) essentiellement axial d'un gaz (4) chauffé par l'arc lumineux (5) qui s'appuie éventuellement sur la pièce (1) de contact avec l'arc lumineux et formant avec l'élément (2) de guidage de courant un contact plat (F) qui guide un courant de court-circuit (I) qui s'écoule dans la pièce (1) de contact avec l'arc lumineux et l'élément (2) de guidage de courant pendant la durée de combustion de l'arc lumineux (5),
    l'élément (2) de guidage de courant étant essentiellement protégé contre l'écoulement (4) par l'élément (3a) de protection contre l'érosion à proximité du contact plat (F),
    l'élément (2) de guidage du courant présentant une partie axiale (2a) dans laquelle la dimension radiale intérieure (d2) de l'élément (2) de guidage de courant augmente par pas ou de manière continue lorsque la distance par rapport au contact plat (F) mesurée parallèlement à l'axe (A) augmente,
    caractérisé en ce que
    la partie axiale (2a) est prévue pour loger l'élément (3a) de protection contre l'érosion et
    en ce que dans la partie axiale (2a), une dimension radiale extérieure (d3) de l'élément (3a) de protection contre l'érosion est adaptée à la dimension radiale intérieure (d2) de l'élément (2) de guidage de courant, l'élément (3a) de protection contre l'érosion étant adapté dans l'élément (2) de guidage de courant.
  2. Commutateur à haute puissance selon la revendication 1, caractérisé en ce que l'élément (2) de guidage de courant et l'élément (3a) de protection contre l'érosion sont essentiellement à symétrie centrale et en ce que la dimension radiale intérieure (d2) est le diamètre intérieur (d2).
  3. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce que l'élément (3a) de protection contre l'érosion s'étend axialement jusqu'à la pièce (1) de contact avec l'arc lumineux.
  4. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce qu'à proximité du contact plat (F), l'élément (3a) de protection contre l'érosion présente un matériau plus réfractaire que l'élément (2) de guidage du courant.
  5. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce que dans une deuxième partie axiale (2b), une dimension radiale intérieure (d3) de l'élément (3a) de protection contre l'érosion est essentiellement identique à une dimension radiale intérieure (d1) de la pièce (1) de contact avec l'arc lumineux.
  6. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce qu'un tube (3) d'évacuation de courant qui guide l'écoulement (4) est prévu et en ce que l'élément (3a) de protection contre l'érosion est relié solidairement au tube d'évacuation (3).
  7. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce que l'élément (2) de guidage de courant est relié solidairement à une tuyère auxiliaire (7) qui entoure la pièce (1) de contact avec l'arc lumineux.
  8. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce que le contact plat (F) est orienté essentiellement radialement.
  9. Commutateur à haute puissance selon l'une des revendications précédentes, caractérisé en ce qu'en plus de la pièce (1) de contact avec l'arc lumineux, il présente encore un système (9) de contact pour le courant nominal.
  10. Commutateur à haute puissance selon l'une des revendications 1 à 9, caractérisé en ce que la dimension intérieure (d2) de l'élément (2) de guidage de courant augmente de manière continue ou de manière continue avec un gradin ou plusieurs gradins dans une partie qui commence à proximité de la surface de contact (F).
  11. Commutateur à haute puissance selon l'une des revendications 1 à 10, caractérisé en ce que la dimension intérieure (d2) de l'élément (2) de guidage de courant augmente par plusieurs pentes dans une partie qui commence à proximité de la surface de contact (F).
  12. Commutateur à haute puissance selon l'une des revendications 1 à 11, caractérisé en ce que le dôme de contact (1) est vissé dans l'élément (2) de guidage de courant.
EP05812736A 2004-12-23 2005-12-14 Disjoncteur presentant une ligne de courant de court-circuit resistant au feu Active EP1831906B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05812736A EP1831906B1 (fr) 2004-12-23 2005-12-14 Disjoncteur presentant une ligne de courant de court-circuit resistant au feu

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405796A EP1675144A1 (fr) 2004-12-23 2004-12-23 Disjoncteur à haute puissance avec conducteur pour les courants court-circuits résistant à des arcs électriques
PCT/CH2005/000747 WO2006066426A1 (fr) 2004-12-23 2005-12-14 Disjoncteur presentant une ligne de courant de court-circuit resistant au feu
EP05812736A EP1831906B1 (fr) 2004-12-23 2005-12-14 Disjoncteur presentant une ligne de courant de court-circuit resistant au feu

Publications (2)

Publication Number Publication Date
EP1831906A1 EP1831906A1 (fr) 2007-09-12
EP1831906B1 true EP1831906B1 (fr) 2010-02-17

Family

ID=34932422

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04405796A Withdrawn EP1675144A1 (fr) 2004-12-23 2004-12-23 Disjoncteur à haute puissance avec conducteur pour les courants court-circuits résistant à des arcs électriques
EP05812736A Active EP1831906B1 (fr) 2004-12-23 2005-12-14 Disjoncteur presentant une ligne de courant de court-circuit resistant au feu

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04405796A Withdrawn EP1675144A1 (fr) 2004-12-23 2004-12-23 Disjoncteur à haute puissance avec conducteur pour les courants court-circuits résistant à des arcs électriques

Country Status (7)

Country Link
US (1) US7595461B2 (fr)
EP (2) EP1675144A1 (fr)
JP (1) JP2008525945A (fr)
CN (1) CN101288141B (fr)
AT (1) ATE458258T1 (fr)
DE (1) DE502005009053D1 (fr)
WO (1) WO2006066426A1 (fr)

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DE102006031219A1 (de) * 2006-06-30 2008-01-10 Siemens Ag Leistungsschalter mit einem Gehäuse
DE102006034742A1 (de) 2006-07-24 2008-01-31 Siemens Ag Isolierstoffdüse, welche ein erstes Material und ein zweites Material aufweist
EP2180492B1 (fr) * 2008-10-22 2013-12-04 ABB Technology AG Chambre de commutation pour un disjoncteur haute tension et disjoncteur haute tension
DE102009009451A1 (de) * 2009-02-13 2010-08-19 Siemens Aktiengesellschaft Schaltgeräteanordnung mit einer Schaltstrecke
US9012800B2 (en) 2010-02-04 2015-04-21 Mitsubishi Electric Corporation Gas circuit breaker
CN103794386A (zh) * 2014-01-15 2014-05-14 北京华东电气股份有限公司 Sf6组合电器的夹板式梅花触头
US10002733B2 (en) * 2016-03-02 2018-06-19 General Electric Technology Gmbh Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker
US10026571B1 (en) * 2017-03-31 2018-07-17 General Electric Technology Gmbh Switching chamber for a gas-insulated circuit breaker comprising an optimized thermal channel

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US3909572A (en) * 1973-08-31 1975-09-30 Hitachi Ltd Circuit breaking section of a gas circuit breaker of the puffer type
ES499929A0 (es) * 1980-02-28 1982-05-16 Mitsubishi Electric Corp Interruptor automatico del tipo de extincion de arco por chorro de gas
IT8420810V0 (it) * 1984-02-10 1984-02-10 Sace Spa Sistema di contatti d'arco per interruttori elettrici, particolarmente a fluido d'estinzione dell'arco.
IT1186140B (it) * 1985-12-03 1987-11-18 Sace Spa Camera di interruzione dell'arco elettrico,in particolare per interruttori a fluido
EP0290950B1 (fr) * 1987-05-13 1993-04-14 BBC Brown Boveri AG Disjoncteur à gaz comprimé
FR2676858B1 (fr) * 1991-05-23 1994-06-10 Alsthom Gec Disjoncteur a gaz de soufflage pour haute et moyenne tension.
FR2709882B1 (fr) * 1993-09-08 1995-10-20 Gec Alsthom T & D Sa Contact électrique de type tulipe.
DE29607660U1 (de) * 1996-04-22 1996-06-20 Siemens AG, 80333 München Unterbrechereinheit eines Hochspannungs-Leistungsschalters
FR2751782B1 (fr) * 1996-07-23 1998-08-28 Gec Alsthom T & D Sa Disjoncteur a haute tension a auto-soufflage d'arc
DE19803974C1 (de) * 1998-01-23 1999-08-12 Siemens Ag Kontaktanordnung für einen elektrischen Leistungsschalter

Also Published As

Publication number Publication date
DE502005009053D1 (de) 2010-04-01
WO2006066426A1 (fr) 2006-06-29
CN101288141A (zh) 2008-10-15
CN101288141B (zh) 2011-07-27
ATE458258T1 (de) 2010-03-15
US20080006608A1 (en) 2008-01-10
EP1675144A1 (fr) 2006-06-28
US7595461B2 (en) 2009-09-29
JP2008525945A (ja) 2008-07-17
EP1831906A1 (fr) 2007-09-12

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