EP1444713A1 - Interrupteur de puissance - Google Patents

Interrupteur de puissance

Info

Publication number
EP1444713A1
EP1444713A1 EP02803738A EP02803738A EP1444713A1 EP 1444713 A1 EP1444713 A1 EP 1444713A1 EP 02803738 A EP02803738 A EP 02803738A EP 02803738 A EP02803738 A EP 02803738A EP 1444713 A1 EP1444713 A1 EP 1444713A1
Authority
EP
European Patent Office
Prior art keywords
outflow
axial direction
circuit breaker
control device
flow control
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
EP02803738A
Other languages
German (de)
English (en)
Other versions
EP1444713B2 (fr
EP1444713B1 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7706112&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1444713(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 EP1444713A1 publication Critical patent/EP1444713A1/fr
Application granted granted Critical
Publication of EP1444713B1 publication Critical patent/EP1444713B1/fr
Publication of EP1444713B2 publication Critical patent/EP1444713B2/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
    • 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 a circuit breaker with a contact piece that is movable in an axial direction and with a quenching gas flow that moves in the axial direction during a switching event, which is coaxially surrounded by a flow control device that has at least one outflow opening in a lateral surface for deflecting at least part of the Extinguishing gas flow in an outflow direction.
  • Such a circuit breaker is known for example from the patent DE 199 53 560 Cl.
  • a circuit breaker is described there, the interrupter unit of which is arranged within an encapsulation housing.
  • any quenching gas that may be generated is continued there within a hollow contact tube from the switching path.
  • the contact tube At the end of the hollow contact tube facing away from the switching path, the contact tube has outlet openings from which the extinguishing gas emerges.
  • the extinguishing gas exits into a space which is limited by a flow control device.
  • the flow control device there is essentially cylindrical and has a lateral surface
  • the outflow opening Assigned deflection hoods deflect the exiting extinguishing gas in an axial direction of the interrupter unit. This deflection is necessary in order to prevent the quenching gas from flowing directly onto the encapsulation housing. With such a flow there would be a risk of weakening gas insulation.
  • the assignment of the deflection hoods to the outflow openings represents a technically complex construction, because the deflection hoods are individually assigned to each outflow opening and each deflection hood is to be attached individually to the flow deflection device. Because of the relatively complicated arrangement of outflow openings and deflection hoods with respect to one another, a simple manufacturing process, for example a casting process, is not suitable for such an arrangement.
  • the object of the present invention is to design a circuit breaker of the type mentioned at the outset in such a way that the steering of the extinguishing gas emerging from an outflow opening is optimized.
  • the object is achieved according to the invention in a circuit breaker of the type mentioned at the outset in that the outflow direction is directed tangentially to the lateral surface essentially transversely to the axial direction.
  • the path available for the outflow is extended by a tangential outflow direction to the lateral surface.
  • a tangential direction also means directions that deviate from a mathematically exact tangent by up to 45 ° within the azimuthal plane.
  • the use of deflection hoods which are assigned to the outflow openings is not necessary.
  • the necessary components are reduced and, in addition to simplified control of the extinguishing gas, the manufacturing costs are also reduced. Due to the simplified construction, simple casting techniques can now also be used to manufacture the flow control device.
  • the outflow openings can be made in the lateral surface by milling, drilling or another suitable technique. In addition to the simplified control of the extinguishing gas, an improved swirling of the extinguishing gas can also be achieved.
  • a further advantageous embodiment can provide that the flow directing device has an elevation on the lateral surface. Exercise and / or has a recess on the flanks of the
  • Outflow opening (s) is / are arranged.
  • the outflow directions of the individual outflow openings can be arranged in a simple manner.
  • elevations are arranged on the flow directing device, an increase in the space delimited by the flow directing device is also achieved. This makes it possible to cool the hot extinguishing gas even better within the circuit breaker interrupter unit.
  • outflow direction (s) is / are arranged perpendicular to the lateral surface area directly surrounding the outflow opening (s).
  • the elevation (s) and / or the depression (s) extend essentially in the axial direction in the manner of a web or channel.
  • the elevations result at the elevations or depressions favorable possibilities to arrange the outflow openings along axially extending side surfaces. Due to the elongated extension, a plurality of openings can be arranged side by side in the axial direction, as a result of which the quantity of the extinguishing gas flowing out is distributed favorably along the axial extension.
  • the elevations and / or depressions additionally support the swirling of extinguishing gas emerging from the outlet openings.
  • additional swirling bodies or baffles can be assigned to influence the extinguishing gas flow.
  • a circuit breaker with a contact piece which can be moved in an axial direction and with an extinguishing gas flow which moves in the axial direction in the event of a switching operation and which is coaxially surrounded by a flow control device which is located in a lateral surface first and a second outflow opening for deflecting at least a portion of the extinguishing gas flow in a first and in a second outflow direction, so that the first and the second outflow direction are directed essentially in the axial direction and the first outflow direction and the second outflow direction intersect ,
  • the extinguishing gas essentially flows out in an axial direction, it is particularly advantageous if two outflow directions of two outflow openings intersect. In the intersection of the outflow directions, there is an intensive swirling of the extinguishing gas flows with one another and, if appropriate, with cool insulating gas. WEI thereafter, the quenching gas flow is braked by the swirling after exiting the flow control device.
  • An advantageous embodiment can further provide that the flow control device has an elevation and / or a depression on the lateral surface, on the flanks of which the first and / or the second outflow opening are arranged.
  • the arrangement of the outflow openings on the flanks of the elevations or depressions enables the first and second outflow openings to be assigned to one another in a favorable manner, so that the outflow directions of the individual outlet openings can be overlapped with simple means.
  • first and / or the second outflow direction are arranged perpendicular to the lateral surface areas directly surrounding the first and / or the second outflow opening.
  • the emerging extinguishing gas is bundled and can be easily aligned to a specific area. This minimizes unintentional scattering of the extinguishing gas jet.
  • the elevation (s) and / or the depression (s) revolve in a ring-shaped and / or interrupted ring-shaped manner around the axial direction. If the elevations and / or the depressions are arranged in a ring-shaped or ring-shaped manner, there is an uneven structure of the lateral surface of the flow control device, as a result of which the extinguishing gas flowing out in the axial direction is swirled very intensively. The uneven structure can cause the extinguishing gas to swirl inside the flow control device as well as after leaving the flow control device.
  • Figure 1 shows a section through a schematically illustrated pressure gas insulated circuit breaker
  • Figure 2 shows a section through a flow control device and an encapsulation housing of the pressurized gas insulated
  • FIG. 3 shows a schematic illustration of a swirling of extinguishing gas
  • Figure 4 is a side view of a flow control device in a first embodiment
  • Figure 5 shows the side view of a flow control device in a second embodiment
  • Figure 6 is a side view of a flow control device in a third embodiment and the Figure 7 is a side view of a flow control device in a fourth embodiment.
  • the circuit breaker 100 shown in FIG. 1 has an encapsulation housing 101.
  • the encapsulation housing 101 can be made from an electrically conductive material or from an electrically insulating material.
  • An interrupter unit 102 of the circuit breaker 100 is arranged in the interior of the encapsulation housing 101.
  • the encapsulation housing 101 is filled with an insulating gas, for example SF 6 .
  • the interrupter unit 102 has a contact set 103.
  • the contact set 103 has a fixed nominal current contact 104 and a movable nominal current contact 105.
  • a fixed arcing contact 106 and a moving arcing contact 107 are provided. Both the movable nominal current contact 105 and the movable arcing contact 107 are movable in an axial direction.
  • the lower half of FIG. 1 shows the contact set 103 in the switched-on state
  • the upper half of FIG. 1 shows the contact set 103 during a switch-off process.
  • the movable arcing contact 107 is tubular, so that during a switch-off process, an extinguishing gas generated by a possibly burning arc 108 can be removed from the switching path of the contact set 103 within the movable arcing contact 107.
  • outlet openings 109, 110 are provided, from which the extinguishing gas can escape into a space which is surrounded by a flow control device 1.
  • the arrangement of the flow directing device 1 is not restricted to the region of the end of the movable arcing contact 107 which is applied to the contact set 103.
  • a flow control device can also be provided in the area of the fixed nominal current contact 104 in order to redirect the extinguishing gas flowing there in its direction.
  • FIG. 2 shows a cross section through the flow directing device 1 and the encapsulation housing 101.
  • the flow control device 1 has an essentially circular cross section.
  • a plurality of tabs 4a, b, c, d, e, f are arranged in their interior.
  • the tabs 4a, b, c, d, e, f serve both for the mechanical mounting of the flow control device 1 on the interrupter unit 102 and for the electrical contacting of the interrupter unit 102.
  • the cylindrical base body of the flow control device 1 has several elevations 5a, b, c, d , e, f on.
  • the inclined flanks 7a, b, c, d, e, f, g, h, i, j, k, 1 each have outflow openings 10a, b, c, d, e, f, g, h, i, j, k , 1 for directing at least a portion of the extinguishing gas generated in the interrupter unit 102. Every outflow opening
  • a first variant of a flow control device 1 a shown in FIG. 4 shows a side view. Arrangements having the same effect are provided with the same reference symbols in the figures.
  • a connecting piece 16 for connecting an electrical conductor is formed on the first variant of the current steering device 1 a.
  • the first variant of the flow control device la has a cylindrical basic shape, on the lateral surface of which several elevations 5a, b, c, d are arranged. The elevations 5a, b, c, d extend in the form of a web along the axial direction.
  • One end of the first variant of the flow control device la is closed, as in all of the variants described, in order to prevent the extinguishing gas blown into the first variant of the flow control device la through outflow openings 10b, c, d arranged in the elevations 5a, b, c, d to let f flow away.
  • the elevations 5a, b, c, d have a truncated pyramid-like outer shape.
  • a plurality of outflow openings 10b, c, d, f are arranged in the side surfaces (flanks) of the truncated pyramids.
  • the outflow openings 10b, c, d, f are formed in the first variant of the flow control device la as an elongated hole. It can be provided that two outflow openings 10c, d of two adjacent elevations 5b, c are each assigned directly opposite each other and the outflow directions of the respectively directly assigned outflow openings 10c, d intersect.
  • the second variant of a flow control device 1b shown in FIG. 5 has a cylindrical shape Shell surface several wells lla, b, c, d. Further outflow openings 12a, b, c, d, e, f are arranged in the flanks of the depressions 11a, b, c, d.
  • the outflow directions of the outflow openings 12d, e which are directly opposite one another in a recess 11c are directed such that they intersect one another.
  • the third variant of a flow control device 1c shown in FIG. 6 shows, by way of example, further possible design variants of the elevations or depressions.
  • the elevations or depressions can be arranged, for example, in a variety of different shapes on the lateral surface of a flow control device.
  • the respective outflow openings can be designed very variably, for example circular, oval or in other suitable shapes and for example as a vertical or oblique bore / milling.
  • this "bevel” causes the outflow openings to let the extinguishing gas flow out in certain outflow directions, regardless of the design of the lateral surface
  • Further shapes can also be used in an advantageous manner.
  • Favorable shapes are, for example: the shape of a spherical cap 13a, b, a truncated tetrahedron 14 or some other polygonal body 15. In order to achieve a favorable dielectric shape, the body edges and Fillet body edge transitions to other surfaces.
  • the fourth variant of a flow control device 1d shown in FIG. 7 has on its outer surface an elevation 17 which extends in a ring around the axial direction and a plurality of elevations which form an interrupted elevation 17a.
  • the outflow directions of the outflow openings 19a, b, c, d, e, f run in the axial direction, the outflow directions of the respectively assigned outflow openings 19a, f; 19b, e; 19c, d intersect each other.
  • depressions can be provided on the outflow device instead of the elevations, or the outflow openings can be oriented obliquely to the surface surrounding them.
  • FIG. 1 A swirling body 18 protruding into a gas stream is shown as an example in FIG.

Landscapes

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

Abstract

L'invention concerne un interrupteur de puissance (100) comprenant une pièce de contact (105, 107) mobile dans le sens axial et un flux de gaz de coupage qui circule dans le sens axial lors de l'activation de l'interrupteur. Ce flux de gaz de coupage est entouré de façon coaxiale par un dispositif de guidage de flux (1,1a,b,c) dont une surface externe présente au moins un orifice d'évacuation (10a,b,c,d,e,f,g,h,i,j,k,l; 12a,b,c,d,e,f) destiné à dévier au moins une partie du flux de gaz de coupage dans une direction d'évacuation, ce dispositif d'évacuation étant orienté de manière tangentielle et sensiblement transversale à la direction axiale.
EP02803738A 2001-11-14 2002-10-29 Interrupteur de puissance Expired - Lifetime EP1444713B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10156535A DE10156535C1 (de) 2001-11-14 2001-11-14 Leistungsschalter
DE10156535 2001-11-14
PCT/DE2002/004061 WO2003046939A1 (fr) 2001-11-14 2002-10-29 Interrupteur de puissance

Publications (3)

Publication Number Publication Date
EP1444713A1 true EP1444713A1 (fr) 2004-08-11
EP1444713B1 EP1444713B1 (fr) 2005-03-23
EP1444713B2 EP1444713B2 (fr) 2009-11-11

Family

ID=7706112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02803738A Expired - Lifetime EP1444713B2 (fr) 2001-11-14 2002-10-29 Interrupteur de puissance

Country Status (5)

Country Link
US (1) US7022922B2 (fr)
EP (1) EP1444713B2 (fr)
DE (2) DE10156535C1 (fr)
RU (1) RU2293393C2 (fr)
WO (1) WO2003046939A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1768150A1 (fr) * 2005-09-26 2007-03-28 ABB Technology AG Disjoncteur à haute tension avec pouvoir de coupure ameliorée

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EP1403891B2 (fr) † 2002-09-24 2016-09-28 ABB Schweiz AG Disjoncteur
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CN101120423B (zh) * 2004-12-24 2010-06-23 Abb技术有限公司 具有改进的断流容量的发电机开关
RU2342729C1 (ru) * 2004-12-24 2008-12-27 Абб Текнолоджи Аг Способ охлаждения выхлопного газа в электрическом выключателе и электрический выключатель
JP4806534B2 (ja) * 2005-03-31 2011-11-02 カヤバ工業株式会社 クロージング加工方法及びクロージング加工機
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DE102007063424A1 (de) 2007-12-19 2009-06-25 Siemens Ag Unterbrecheranordnung mit einem bewegbaren Schaltrohr
FR2966972B1 (fr) * 2010-10-27 2013-07-19 Areva T & D Sas Appareillage electrique sous enveloppe metallique comportant au moins un capot pare-effluve assurant des echanges convectifs
DE102011083588A1 (de) * 2011-09-28 2013-03-28 Siemens Aktiengesellschaft Anordnung aufweisend eine Leistungsschalterunterbrechereinheit
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EP3180598B1 (fr) 2014-08-15 2024-03-06 Tenova Goodfellow Inc. Système et procédé d'analyse de chimie des gaz de dégagement industriels poussiéreux
FR3030869B1 (fr) * 2014-12-19 2017-02-10 Alstom Technology Ltd Disjoncteur comprenant un capot d'echappement de gaz a ouverture obturable
KR101688950B1 (ko) * 2015-01-22 2016-12-22 엘에스산전 주식회사 배선용 차단기
WO2017162517A1 (fr) * 2016-03-24 2017-09-28 Abb Schweiz Ag Dispositif disjoncteur de circuit électrique
WO2018066119A1 (fr) * 2016-10-06 2018-04-12 株式会社 東芝 Disjoncteur à gaz
EP3503153B1 (fr) * 2017-12-22 2021-09-01 ABB Power Grids Switzerland AG Disjoncteur haute ou moyenne tension isolé au gaz

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1768150A1 (fr) * 2005-09-26 2007-03-28 ABB Technology AG Disjoncteur à haute tension avec pouvoir de coupure ameliorée
US8389886B2 (en) 2005-09-26 2013-03-05 Abb Technology Ag High-voltage circuit breaker with improved circuit breaker rating
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Also Published As

Publication number Publication date
US7022922B2 (en) 2006-04-04
DE50202588D1 (de) 2005-04-28
RU2004117866A (ru) 2006-01-10
US20040256361A1 (en) 2004-12-23
DE10156535C1 (de) 2003-06-26
RU2293393C2 (ru) 2007-02-10
WO2003046939A1 (fr) 2003-06-05
EP1444713B2 (fr) 2009-11-11
EP1444713B1 (fr) 2005-03-23

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Legal Events

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