EP1502271A1 - Ensemble interrupteur pour disjoncteur haute tension - Google Patents

Ensemble interrupteur pour disjoncteur haute tension

Info

Publication number
EP1502271A1
EP1502271A1 EP03735260A EP03735260A EP1502271A1 EP 1502271 A1 EP1502271 A1 EP 1502271A1 EP 03735260 A EP03735260 A EP 03735260A EP 03735260 A EP03735260 A EP 03735260A EP 1502271 A1 EP1502271 A1 EP 1502271A1
Authority
EP
European Patent Office
Prior art keywords
section
interrupter unit
support element
extinguishing gas
circuit breaker
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
EP03735260A
Other languages
German (de)
English (en)
Other versions
EP1502271B1 (fr
Inventor
Andrzej Nowakowski
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 EP1502271A1 publication Critical patent/EP1502271A1/fr
Application granted granted Critical
Publication of EP1502271B1 publication Critical patent/EP1502271B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage switches
    • 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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H2033/888—Deflection of hot gasses and arcing products

Definitions

  • the invention relates to an interrupter unit of a high-voltage circuit breaker with two contact pieces arranged coaxially opposite one another in the longitudinal direction and forming a switching path and with a hollow channel running longitudinally coaxially with the contact pieces, inside of which a quenching gas in a first, of which during a switching operation Flows along the switching path and the extinguishing gas flows along the outer circumference of the channel in a second direction opposite to the first direction, coaxial with the channel, comprising it, carrying at least part of the interrupter unit and radially enclosing the extinguishing gas flowing in the second direction Support element is arranged.
  • Such a breaker unit is known for example from the published patent application DE 32 11 272 AI.
  • part of the interrupter unit is held by a deflection hood which acts as a supporting element.
  • the deflection hood surrounds a nominal current contact piece designed as a hollow channel.
  • An extinguishing gas generated in the switching section during a switching process flows away from the switching section through the hollow channel.
  • the extinguishing gas is deflected at the deflection hood and conducted outside the hollow duct, opposite the flow direction of the extinguishing gas inside the nominal current contact piece, out of the interrupter unit.
  • Such a construction has only a relatively short outflow path for the extinguishing gas.
  • the extinguishing gas enriched with decomposition products is discharged in the immediate vicinity of the switching path. The one from the exhaust hood to the rated current contact bars, which the
  • Wear nominal current contact piece are located directly in the discharge path of the extinguishing gas and increase the flow resistance of this path. With such guidance for the extinguishing gas, cooling and rapid continuation of the extinguishing gas from the switching path is only possible to a limited extent.
  • an interrupter unit is known from FIG. 9 of US Pat. No. 4,236,053, in which the extinguishing gas flowing out of the switching path is initially carried away from the switching path and an arrangement of different outflow hoods forms a labyrinthine channel in which the extinguishing gas flows twice is deflected about 180 ° in its flow direction.
  • This provides a relatively long discharge path for the extinguishing gas within a compact space.
  • the outflow path there is essentially formed by the fact that deflection hoods are fastened to the contact pieces which partly carry the interrupter unit. Due to the constructive design of the contact pieces as mechanically load-bearing elements, which by the
  • Exhaust hoods are surrounded, there are arrangements in the interior of the exhaust hoods that are optimized with regard to the mechanical design, but the outflow path is associated with a high flow resistance.
  • the present invention is based on the object of designing an interrupter unit of the type mentioned at the outset in such a way that, while maintaining high mechanical stability, the flow path of the extinguishing gas from the switching path to an outflow opening has a low flow resistance.
  • the object is achieved according to the invention in the case of an interrupter unit of the type mentioned at the outset in that the supporting element has a first section and a second section which is radially widened compared to the first section, the second section of the first section and the at least part of the interrupter unit of the second section is carried and in the area of the connection of the first and second sections an outflow opening directed in the first direction for the extinguishing gas is formed between the two sections.
  • the alignment of the outflow opening in the first direction that is to say away from the switching path, further ensures that the extinguishing gas cannot flow back directly into the region of the switching path even after it has flowed out of the outflow opening and weakens its dielectric strength there.
  • An advantageous embodiment can further provide that the second section is coupled to the interrupter unit in the area of a nominal current contact piece.
  • a very large section of one end of the interrupter unit is covered by the support element.
  • a central mounting point can be formed in which the entire contact system with the rated current contact, arcing contact, gears, etc. is carried.
  • the coupling can be designed as a rigid construction or as a movable construction. A movable construction is to be provided, for example, for a movable nominal current contact piece.
  • the second section is part of the current path that can be interrupted by the interrupter unit.
  • the second section of the support element must be made of a suitable material which the interrupter unit can at least partially support.
  • a suitable material which the interrupter unit can at least partially support.
  • Such materials are, for example, metals which are also electrically conductive.
  • the electrical current can be transported directly to the switching path via the second part. Additional electrical conductors, which would have to serve to supply the electrical current to the contact pieces of the interrupter unit, are thus not required.
  • the second section of the support naturally also carry the electrical potential that drives the electricity. The second section is therefore also suitable for shielding the assemblies that are surrounded by it.
  • a further advantageous embodiment provides that a field control electrode is arranged on the support element, in particular on the second section.
  • Field control electrodes can be used to control these electrical fields.
  • the support element itself can be shaped in such a way that it forms a field control electrode.
  • a further advantageous embodiment provides that a cooling device is arranged in the course of the flowing extinguishing gas in front of the outflow opening.
  • an arrangement of a cooling device in the extinguishing gas stream is particularly advantageous.
  • the temperature of the extinguishing gas is reduced by the cooling device, thereby increasing the insulation strength of the extinguishing gas.
  • a particularly advantageous variant of a cooling device can provide that the extinguishing gas flows through a perforated plate.
  • the invention is shown on the basis of an exemplary embodiment in a drawing and described in more detail below.
  • Figure shows a schematic structure of an interrupter unit of a high-voltage circuit breaker.
  • the figure shows an interrupter unit 1 of a high-voltage circuit breaker.
  • the interrupter unit 1 is arranged within an encapsulation housing 23, which is shown only in sections in the figure.
  • the encapsulating housing 23 is filled with an insulating gas which is under increased pressure, for example sulfur hexafluoride.
  • the interrupter unit 1 has a first electrical connection 2 and a second electrical connection 3.
  • the first electrical connection 2 and the second electrical connection 3 serve to integrate the interrupter unit 1 in an electrical current path, which is through the interrupter unit
  • the interrupter unit 1 is interruptible or producible.
  • the first electrical connection 2 and the second electrical connection 3 can be routed through the encapsulation housing 23 of the high-voltage circuit breaker, for example, by means of outdoor bushings.
  • the interrupter unit 1 is opposite
  • Encapsulation housing 23 supported and carried by means of insulators 4a, 4b.
  • the interrupter unit 1 has a first support element 5 and a second support element 6.
  • the second support element 6 has a flow deflection device at one end.
  • a separate flow deflection device 7 is assigned to the first support element 5.
  • the separate flow deflector device 7 consists of an insulating material.
  • Support element 5 and the second support element 6 have a tubular structure, wherein they are each formed from a first section and a second section.
  • bodies deviating from a circular tube shape can also be used to form the support elements.
  • the first section 5a of the support element 5 has a smaller diameter than the second section 5b of the first support element 5.
  • the first section 6a of the second support element 6 has a smaller diameter than the second section 6b of the second support element 6.
  • the first Section 5a and the second section 5b of the first support element 5 are mechanically coupled to one another in an overlap region (see reference numeral 8).
  • the first section 6a and the second section 6b of the second support element are mechanically connected to one another in an overlap area (see reference number 9).
  • the mechanical fastening points 8, 9 are arranged, for example, at three locations symmetrically distributed around the circumference of the carrying elements 5, 6.
  • a first outflow opening 10 for extinguishing gas is provided between the first section 5a and second section 5b of the first support element 5.
  • a second outflow opening 11 for the extinguishing gas is provided between the first section 6a and the second section 6b.
  • Both the first outflow opening 10 and the second outflow opening 11 run in a ring, interrupted by the fastening points 8, 9, around the respective first section 5a, 6a and are directed in such a way that the outflow openings 10, 11 point away from the switching path of the interrupter unit 1 - are.
  • the respective first sections 5a, 6a carry the respective second sections 5b, 6b.
  • FIG. 12 Further fastening points 12c, 12d are arranged at the end of the second section 6b of the second support element 6 facing the switching path.
  • a fixed nominal current contact piece 17 is carried by the further fastening points 12c, 12d.
  • a tube piece 18 forming a channel is held, in the interior of which a fixed arcing contact piece 19 is arranged.
  • the fixed arcing contact piece 19 protrudes into the insulating material nozzle 15.
  • the movable nominal current contact piece 14 and the movable arcing contact piece 16 are arranged coaxially opposite to the fixed nominal current contact piece 17 and the fixed arcing contact piece 19.
  • the fixed nominal current contact piece 17, the fixed arcing contact piece 19 and the pipe piece 18 are carried by the second section 6 b of the second support element 6.
  • the second ends sections 5b, 6b of the support elements 5, 6 facing the switching path are rounded and each form a field control electrode 5c, 6c.
  • the movable arcing contact piece 16 has openings at the end facing away from the switching path, through which the quenching gas flows out and impinges against the separate flow deflection device 7. From there, the extinguishing gas is deflected and deflected outside the movable arcing contact piece 16 in a direction opposite to the direction of the flow of the extinguishing gas inside the movable arcing contact piece 16. The extinguishing gas flows radially outward through a radial opening 21a formed by the first section 5a and the second section 5b and is then blown out through the first outflow opening 10.
  • the extinguishing gas flowing in the region of the second support element 6 is steered in an analogous manner. Part of the extinguishing gas generated in the switching section is carried away by the pipe section 18 from the switching section and impinges against the deflection device of the second support element 6. From there it is conveyed along the outside of the pipe section 18 by a between the first section 6a and the second section. Cut 6b of the second support element 6 formed radial opening 21b driven outwards. A further reversal of the flow direction and an outlet of the extinguishing gas from the second outflow opening 11 then take place through the second section 6b of the second support element 6 such that the
  • Extinguishing gas is directed away from the switching path.
  • a cooling device 22 is arranged in the region of the radial opening 21b formed between the first section 6a and the second section 6b of the second support element 6.
  • the cooling device 22 has a tubular structure, which is essentially formed from a perforated plate, through the holes of which the extinguishing gas can pass. As the holes in the cooling device 22 pass, the quenching gas is additionally cooled.
  • the outflow path of the extinguishing gas is only shown in principle.
  • the extinguishing gas flows can be separated before and after passing through the flow deflection devices by means of further components. It is also possible to minimize the flow resistance by breaking or rounding off body edges.

Landscapes

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

Abstract

La présente invention concerne un ensemble interrupteur (1) pour un disjoncteur haute tension. Cet ensemble interrupteur est porté par un élément de support (5, 6) qui entoure radialement l'ensemble interrupteur (1) et qui présente deux sections (5a, 5b, 6a, 6b). La seconde section (5b, 6b) est radialement plus large que la première section (5a, 6a). Une ouverture d'échappement (10, 11) destinée à un gaz d'extinction qui apparaît au cours d'un processus de commutation se trouve entre les deux sections (5a, 5b, 6a, 6b).
EP03735260A 2002-05-08 2003-04-10 Ensemble interrupteur pour disjoncteur haute tension Expired - Lifetime EP1502271B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10221580 2002-05-08
DE10221580A DE10221580B3 (de) 2002-05-08 2002-05-08 Unterbrechereinheit eines Hochspannungs-Leistungsschalters
PCT/DE2003/001259 WO2003096365A1 (fr) 2002-05-08 2003-04-10 Ensemble interrupteur pour disjoncteur haute tension

Publications (2)

Publication Number Publication Date
EP1502271A1 true EP1502271A1 (fr) 2005-02-02
EP1502271B1 EP1502271B1 (fr) 2006-11-22

Family

ID=29413840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735260A Expired - Lifetime EP1502271B1 (fr) 2002-05-08 2003-04-10 Ensemble interrupteur pour disjoncteur haute tension

Country Status (6)

Country Link
US (1) US7041928B2 (fr)
EP (1) EP1502271B1 (fr)
CN (1) CN1320574C (fr)
DE (2) DE10221580B3 (fr)
RU (1) RU2309478C2 (fr)
WO (1) WO2003096365A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12347634B2 (en) 2020-10-15 2025-07-01 Ge Vernova Infrastructure Technology Llc Circuit breaker comprising an improved gas flow management

Families Citing this family (24)

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Publication number Priority date Publication date Assignee Title
EP1605485B1 (fr) * 2004-06-07 2007-08-08 ABB Technology AG Disjoncteur
ATE389943T1 (de) 2004-12-24 2008-04-15 Abb Technology Ag Generatorschalter mit verbesserter schaltleistung
RU2342729C1 (ru) * 2004-12-24 2008-12-27 Абб Текнолоджи Аг Способ охлаждения выхлопного газа в электрическом выключателе и электрический выключатель
ATE458259T1 (de) 2005-09-26 2010-03-15 Abb Technology Ag Hochspannungsschalter mit verbesserter schaltleistung
ATE508466T1 (de) 2006-03-14 2011-05-15 Abb Technology Ag Schaltkammer für einen gasisolierten hochspannungsschalter
ATE550770T1 (de) 2007-10-31 2012-04-15 Areva Energietechnik Gmbh Hochspannungsleistungsschalter
KR101109697B1 (ko) * 2007-12-07 2012-01-30 현대중공업 주식회사 가스차단기의 고온 가스 배출장치
EP2128882B1 (fr) * 2008-05-30 2011-07-13 ABB Technology AG Disjoncteur haute tension
US9159508B2 (en) * 2009-09-18 2015-10-13 Schneider Electric Industries Sas Switchgear device having at least one single-pole breaking unit comprising a contact bridge and circuit breaker comprising one such device
JP5697671B2 (ja) * 2009-09-18 2015-04-08 シュネーデル、エレクトリック、インダストリーズ、エスアーエスＳｃｈｎｅｉｄｅｒ Ｅｌｅｃｔｒｉｃ Ｉｎｄｕｓｔｒｉｅｓ Ｓａｓ 回転接点ブリッジを備えた単極遮断ユニット、前記ユニットを備えた開閉デバイスおよび前記デバイスを備えた回路ブレーカ
EP2541569B2 (fr) * 2011-06-29 2023-12-20 Hitachi Energy Ltd Accès de courant double pour tensions élevées
DE102011083588A1 (de) 2011-09-28 2013-03-28 Siemens Aktiengesellschaft Anordnung aufweisend eine Leistungsschalterunterbrechereinheit
DE102012202406B4 (de) 2012-02-16 2025-06-05 Siemens Energy Global GmbH & Co. KG Schaltgeräteanordnung
DE102012202408A1 (de) 2012-02-16 2013-08-22 Siemens Aktiengesellschaft Schaltgeräteanordnung
US8915751B2 (en) * 2012-05-29 2014-12-23 Commscope, Inc. Of North Carolina Male coaxial connectors having ground plane extensions
DE102013209663A1 (de) * 2013-05-24 2014-11-27 Siemens Aktiengesellschaft Schaltgaskanal sowie Schalteinrichtung mit Schaltgaskanal
KR101613992B1 (ko) * 2014-04-09 2016-04-21 현대중공업 주식회사 가스절연 차단기
JP2016018702A (ja) * 2014-07-09 2016-02-01 株式会社東芝 ガス遮断器
CN104332352B (zh) * 2014-10-15 2016-08-24 中国西电电气股份有限公司 一种sf6气体断路器
WO2017126029A1 (fr) * 2016-01-19 2017-07-27 三菱電機株式会社 Disjoncteur à gaz
DE102016218518C5 (de) * 2016-09-27 2023-05-11 Siemens Energy Global GmbH & Co. KG Kontaktstück für einen Hochspannungs-Leistungsschalter sowie Verfahren zu dessen Herstellung
CN106710960B (zh) * 2016-12-01 2019-01-22 上海思源高压开关有限公司 一种具有增强绝缘恢复功能的气体断路器
DE102018219832A1 (de) * 2018-11-20 2020-05-20 Siemens Aktiengesellschaft Unterbrechereinheit eines Leistungsschalters
EP3767659B1 (fr) * 2019-07-15 2024-09-04 Hitachi Energy Ltd Disjoncteur avec amélioration du refroidissement d'échappement

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JPS5438572A (en) * 1977-09-02 1979-03-23 Hitachi Ltd Buffer type gas circuit breaker
SU805436A1 (ru) * 1979-03-30 1981-02-15 Предприятие П/Я Р-6517 Газовый выключатель
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12347634B2 (en) 2020-10-15 2025-07-01 Ge Vernova Infrastructure Technology Llc Circuit breaker comprising an improved gas flow management

Also Published As

Publication number Publication date
EP1502271B1 (fr) 2006-11-22
US20050173378A1 (en) 2005-08-11
CN1320574C (zh) 2007-06-06
CN1650381A (zh) 2005-08-03
DE10221580B3 (de) 2004-01-22
WO2003096365A1 (fr) 2003-11-20
RU2309478C2 (ru) 2007-10-27
DE50305756D1 (de) 2007-01-04
US7041928B2 (en) 2006-05-09
RU2004135811A (ru) 2005-07-10

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