EP1814132A1 - Chambre de coupure pour un interrupteur à isolement gazeux - Google Patents

Chambre de coupure pour un interrupteur à isolement gazeux Download PDF

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Publication number
EP1814132A1
EP1814132A1 EP06405045A EP06405045A EP1814132A1 EP 1814132 A1 EP1814132 A1 EP 1814132A1 EP 06405045 A EP06405045 A EP 06405045A EP 06405045 A EP06405045 A EP 06405045A EP 1814132 A1 EP1814132 A1 EP 1814132A1
Authority
EP
European Patent Office
Prior art keywords
switching chamber
mounting flange
locking element
cylinder bottom
chamber 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
EP06405045A
Other languages
German (de)
English (en)
Other versions
EP1814132B1 (fr
Inventor
Martin Kriegel
Markus Vestner
Olaf Hunger
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
Priority to AT06405045T priority Critical patent/ATE418152T1/de
Application filed by ABB Technology AG filed Critical ABB Technology AG
Priority to DE502006002377T priority patent/DE502006002377D1/de
Priority to EP06405045A priority patent/EP1814132B1/fr
Priority to JP2008552661A priority patent/JP2009525569A/ja
Priority to CN2007800040011A priority patent/CN101385109B/zh
Priority to PCT/CH2007/000013 priority patent/WO2007087733A1/fr
Publication of EP1814132A1 publication Critical patent/EP1814132A1/fr
Priority to US12/182,838 priority patent/US7902478B2/en
Application granted granted Critical
Publication of EP1814132B1 publication Critical patent/EP1814132B1/fr
Not-in-force 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
    • H01H33/7061—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

Definitions

  • the present invention relates to a switching chamber for a gas-insulated high-voltage switch according to the preamble of claim 1.
  • the invention also relates to a switch with such a switching chamber.
  • a switching chamber of the aforementioned type is generally used in gas-insulated circuit breakers in the voltage range of about 70 kV and for turn-off of more than 10 kA and is with an arc extinguishing properties having insulating gas, such as based on sulfur hexafluoride and / or nitrogen and / or carbon dioxide, in the generally filled up to a few bar pressure. Since such circuit breakers are designed for switching large and small short-circuit currents, a significant amount of hot arc gas is optionally explosively released during a switching operation by the forming switching arc, which stresses the switching chamber mechanically and electrically strong.
  • insulating gas such as based on sulfur hexafluoride and / or nitrogen and / or carbon dioxide
  • switching chamber components such as switching pieces, a Isolierdüse and a switching piece-actuated compression device to be connected together and support the switching chamber housing so that they withstand the large forces occurring during arcing, even after multiple shutdown large short-circuit currents.
  • a switching chamber of the type mentioned above with an insulating gas-filled housing and a contact arrangement held in the housing is described in EP 0 806 049 B1 ,
  • two rated current contacts of the contact arrangement are each by cold deformation of two Metal tubes formed and are the piston of a switch drive actuated piston-cylinder compression device and a fixed bearing element of a sliding guide a movably performed arcing contact of the contact assembly in a cold-workable metal tube by plastic deformation, such as by rolling, held the metal tube. Therefore, this switching chamber can be manufactured without screw connection with relatively little effort.
  • the object is to provide a switching chamber of the type mentioned, which can be manufactured with simple means and good fit accuracy.
  • a screw connection is arranged in the edge region of a component with a radially displaceable locking element which fixes the component by spreading and jamming in one of two conductor tubes or in the switching chamber housing. It is thus formed a releasable connection between one of the aforementioned components and one of the two conductor tubes or the switching chamber housing. Therefore, the so-connected component, such as maintenance, can be easily replaced.
  • the connection adapts during assembly to the conductor tube or the switching chamber housing, so that unavoidable fit inaccuracies are compensated and a very accurate positioning of the component during manufacture in the switching chamber is made possible.
  • Such components are an insulating nozzle, a cylinder bottom of a compression device, a first mounting flange for attaching a piston of the compression device to the housing of the switching chamber or a second mounting flange for attaching a deflecting gear connected to an arcing contact of a contact arrangement.
  • the component can be fixed with positive locking in the switching chamber housing or in one of the two conductor tubes.
  • These two wedges are formed either in the two ends of a locking element designed as an open circular ring or a first of these two wedges is formed in a first and the second in a second circular segment of a segment formed as a segmented annular locking element.
  • a screw of the screw through an axially aligned passage opening of the Isolierdüse, the cylinder bottom, the first or the second mounting flange is inserted and engages in a female thread, which in a axially guided pressure ring or in a arranged on the pressure ring nut is formed.
  • the locking element is arranged between the insulating nozzle, the cylinder bottom, the first or the second mounting flange and the pressure ring and guided by wedge action radially outward.
  • the wedge effect is generated in a simple manner by a molded-in locking element wedge, which on an outwardly inclined support surface of the insulating nozzle, the cylinder base, the first or the second mounting flange or the pressure ring is guided.
  • this wedge may have two oppositely inwardly inclined wedge surfaces, of which the first on an outwardly inclined support surface of the Isolierdüse, the cylinder bottom, the first or the second mounting flange and the second on an outwardly inclined surface the pressure ring is guided.
  • the switching chamber shown in Figure 1 is part of a high voltage circuit breaker and can be used for example in a high voltage network with a nominal voltage of 250 kV.
  • This chamber contains a filled with a compressed insulating gas, such as based on sulfur hexafluoride or a sulfur hexafluoride gas mixture, filled and largely tubular housing 1 and a received from the switching chamber housing 1 and largely axially symmetrical contact arrangement 2.
  • the contact assembly 2 has two contact pieces 3, 4 , which are arranged relative to each other along the axis of symmetry 5 movable.
  • the contact pieces 3 and 4 respectively contain an arcing contact 6 and 7 in a coaxial arrangement and a conductor tube 8 or 9 connected in an electrically conductive manner to the arcing contact 6 or 7.
  • a conductor tube 8 In the conductor tube 8 is a rated current contact 10, in the conductor tube 9 a rated current contact 11 molded.
  • Both arcing contacts 6, 7 are coaxially surrounded by an insulating nozzle 12.
  • the reference numeral 13 denotes a compression device.
  • a piston 14 of the compression device 13 is rigidly held on a mounting flange 15, which in turn is rigidly secured to the switching chamber housing 1.
  • a cylinder 16 of the compression device 11 has a wall, which is formed by a portion of the movable conductor tube 8, and a bottom 17, the conductor tube 8 electrically conductive and rigid with the arcing contact. 6 combines.
  • the arcing contact 7 is integrated into an axially displaceable rod of a deflecting gear 18, which is held on a mounting flange 19 fastened in the conductor tube 9 and contains a drive rod 20 attached to the discharge end of the nozzle 12.
  • the arc contact 6 When opening or closing the contact arrangement 2, the arc contact 6 is displaced along the axis 5 by means of a drive, not shown. In the same direction and the conductor tube 8, the insulating 12 and the rod 20 are displaced, whereas the arcing contact 7 is displaced over the reversing gear 18 in the reverse direction. The occurring, predominantly axially acting driving force is transmitted directly to the reversing gear 18 via the cylinder bottom 17, the conductor tube 8 and the insulating nozzle 12. Radially acting guiding forces are absorbed by the mounting flange 15, the piston 14 held on the mounting flange 15 and the deflection gear 18 held on the mounting flange 19. For a safe operation of the switching chamber therefore a good attachment of these components is required.
  • At least one of these force-transmitting and / or force-absorbing components is arranged in the edge region of a screw connection shown in FIGS 2 to 9 with a radially displaceable locking element, which these components, ie in particular the insulating 12, the cylinder bottom 17, the mounting flange 15 or the mounting flange 19 by spreading and jamming on one of the two conductor tubes 8, 9 or the switching chamber housing 1 sets.
  • both embodiments of the cylinder bottom 17 is provided as a force-transmitting part, in the embodiment according to Figure 8, the Isolierdüse 12 and the embodiment according to Figure 9 of the mounting flange 15.
  • a recess 21 formed in the conductor tube 8 in which a locking member 22 is spread in the manufacture of the switching chamber.
  • This locking element 22 is radially guided in an opening into the lateral surface of the cylinder bottom 17, annular recess of the cylinder bottom 17.
  • a generally annular projection 23 which engages behind the guided in the slot locking member 22 in the course of production.
  • the screw on four screws ( Figures 3 and 5), which are each guided in a parallel to the axis 5 oriented nut thread of the cylinder bottom 17.
  • the screws 24 each contain a free end formed as a cone 25.
  • the cone 25 is supported on two oppositely inclined surfaces of two wedges 26 ', 26 ", which are each part of one of two adjacent circular ring segments 22' and 22" of the locking element 22 constructed of four identical circular ring segments (FIGS. ,
  • the cylinder bottom 17 is inserted into the conductor tube 8 (FIGS. 2 and 3).
  • the locking element 22 may also have fewer or more than four circular ring segments 22 ', 22 "It is also conceivable that the two wedges 26', 26" are formed in the two ends of a locking element 22 designed as an open ring, ie approximately horseshoe-shaped and only a single screw is provided for spreading and clamping this ring. It is particularly important that when tightening the screws 24 and the screw, the locking element 22 outwardly, spread in the recess 21 and clamped on the conductor tube 8. The cylinder bottom 17 is then held by the spreading in the axial direction with positive engagement and by the jamming in the circumferential direction with traction.
  • one or more circumferentially limited recesses or wall openings may be formed in the conductor tube 8.
  • the cylinder bottom 17 is then held in the circumferential direction with positive engagement. If the locking element is formed horseshoe-shaped, then a biasing force forms during the spreading, which upon release of the Screwed returns the Reliefsp Sonten parts of the locking element, thus facilitating the removal of the cylinder bottom 17.
  • the projection 23 provided in the embodiment according to FIGS. 6 and 7 also sets the cylinder bottom 17 in the axial direction with positive engagement when the locking element 22 is spread and clamped. Since the conductor tube 8 is generally made of a good cold-workable material based on copper or aluminum, this projection can be embossed into the tube 8 by simple means.
  • the screw 24 is inserted through an axially aligned passage opening 29 of the insulating 12 according to the embodiment of Figure 8.
  • the thread of the screw engages in a nut thread, which in an axially guided pressure ring 30 or in a arranged on the pressure ring nut 31 (right half of Figure 8) is formed.
  • the locking element 22 is disposed between the insulating nozzle 12 and the pressure ring 30 and is guided radially outwardly when tightening the screw, spread in the recess 21 or (alternatively behind a projection) and subsequently clamped to the conductor tube 8.
  • the locking element 22 has a radially inwardly directed wedge 26.
  • the wedge is guided on an outwardly inclined bearing surface of the pressure ring 30.
  • this bearing surface can also be arranged on the insulating nozzle 12 (right half of FIG. 8) or the wedge 26 can have two wedge surfaces inclined inwards in the opposite direction.
  • a locking element 22 with a double-beveled wedge 26 can be seen.
  • the locking element may be formed as an open or segmented circular ring.
  • an elastically deformable return means 32 embodied as an annular spring can be seen, which loads the individual annular segments of the locking element 22 with an inwardly directed small preloading force and thus in the embodiment according to FIG. 9 for a defined position of the individual segments in FIG Assembly ensures.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP06405045A 2006-01-31 2006-01-31 Chambre de coupure pour un interrupteur à isolement gazeux Not-in-force EP1814132B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE502006002377T DE502006002377D1 (de) 2006-01-31 2006-01-31 Schaltkammer für einen gasisolierten Hochspannungsschalter
EP06405045A EP1814132B1 (fr) 2006-01-31 2006-01-31 Chambre de coupure pour un interrupteur à isolement gazeux
AT06405045T ATE418152T1 (de) 2006-01-31 2006-01-31 Schaltkammer für einen gasisolierten hochspannungsschalter
CN2007800040011A CN101385109B (zh) 2006-01-31 2007-01-12 气体绝缘高压开关的灭弧室
JP2008552661A JP2009525569A (ja) 2006-01-31 2007-01-12 ガス絶縁高圧スイッチのためのスイッチングチャンバ
PCT/CH2007/000013 WO2007087733A1 (fr) 2006-01-31 2007-01-12 Chambre de commutation pour un interrupteur à haute tension isolé au gaz
US12/182,838 US7902478B2 (en) 2006-01-31 2008-07-30 Switching chamber for a gas-insulated high-voltage switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06405045A EP1814132B1 (fr) 2006-01-31 2006-01-31 Chambre de coupure pour un interrupteur à isolement gazeux

Publications (2)

Publication Number Publication Date
EP1814132A1 true EP1814132A1 (fr) 2007-08-01
EP1814132B1 EP1814132B1 (fr) 2008-12-17

Family

ID=36603508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06405045A Not-in-force EP1814132B1 (fr) 2006-01-31 2006-01-31 Chambre de coupure pour un interrupteur à isolement gazeux

Country Status (7)

Country Link
US (1) US7902478B2 (fr)
EP (1) EP1814132B1 (fr)
JP (1) JP2009525569A (fr)
CN (1) CN101385109B (fr)
AT (1) ATE418152T1 (fr)
DE (1) DE502006002377D1 (fr)
WO (1) WO2007087733A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8779316B2 (en) * 2007-10-31 2014-07-15 Alstom Grid Gmbh High-voltage circuit breaker

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879207B1 (fr) * 2006-07-12 2017-04-19 ABB Schweiz AG Engrenage à pignon et crémaillère pour un interrupteur
US9012800B2 (en) * 2010-02-04 2015-04-21 Mitsubishi Electric Corporation Gas circuit breaker
JP4684374B1 (ja) * 2010-06-03 2011-05-18 三菱電機株式会社 開閉装置
DE102012211376A1 (de) * 2012-06-29 2014-04-10 Siemens Aktiengesellschaft Schaltanordnung
CN104143472B (zh) * 2013-09-30 2017-01-25 国家电网公司 压气式灭弧装置及使用该灭弧装置的高压断路器
MX340761B (es) * 2014-04-24 2016-07-26 Sotnikov Mikhail Sistema de contacto giratorio para su integracion en conductores tubulares de un conmutador de alto voltaje.
CN104299840B (zh) * 2014-04-25 2017-01-04 国家电网公司 灭弧室及使用该机构的断路器
EP3149757B1 (fr) * 2014-06-02 2018-08-08 ABB Schweiz AG Interrupteur de haute tension à soufflage de gaz et unité de disjoncteur comprenant un tel interrupteur à soufflage de gaz
EP3292557B1 (fr) * 2015-05-07 2019-07-31 ABB Schweiz AG Dispositif de court-circuit permanent
CN107731608B (zh) * 2017-11-08 2024-04-12 北京北开电气股份有限公司 一种高压绝缘多圈传动结构
CN114141574B (zh) * 2021-10-20 2024-03-26 平高集团有限公司 一种断路器及其主拉杆

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704493U (de) * 1955-01-22 1955-08-11 Licentia Gmbh Isolierstoffduese fuer druckgasschalter.
DE1130038B (de) * 1960-04-19 1962-05-24 Licentia Gmbh Duesenfoermiges Schaltstueck fuer Leistungsschalter
DE29607660U1 (de) * 1996-04-22 1996-06-20 Siemens Ag Unterbrechereinheit eines Hochspannungs-Leistungsschalters
EP0806049B1 (fr) 1994-12-29 2000-03-15 Abb Ab Disjoncteur a haute tension

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH655604B (fr) * 1981-08-14 1986-04-30
FR2769403B1 (fr) * 1997-10-02 1999-11-12 Gec Alsthom T & D Sa Interrupteur a gaz comprime avec un engrenage a cremailleres
DE19958645C5 (de) * 1999-12-06 2011-05-26 Abb Technology Ag Hybridleistungsschalter
FR2809531B1 (fr) * 2000-05-25 2002-07-05 Alstom Buse isolante de soufflage pour disjoncteur
CN1155975C (zh) * 2000-12-30 2004-06-30 李建蓉 66kV及其以上各电压等级真空灭弧室
CN1148772C (zh) * 2002-05-15 2004-05-05 宁波天安（集团）股份有限公司 热膨胀自能型六氟化硫断路器灭弧室
EP1879207B1 (fr) * 2006-07-12 2017-04-19 ABB Schweiz AG Engrenage à pignon et crémaillère pour un interrupteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704493U (de) * 1955-01-22 1955-08-11 Licentia Gmbh Isolierstoffduese fuer druckgasschalter.
DE1130038B (de) * 1960-04-19 1962-05-24 Licentia Gmbh Duesenfoermiges Schaltstueck fuer Leistungsschalter
EP0806049B1 (fr) 1994-12-29 2000-03-15 Abb Ab Disjoncteur a haute tension
DE29607660U1 (de) * 1996-04-22 1996-06-20 Siemens Ag Unterbrechereinheit eines Hochspannungs-Leistungsschalters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8779316B2 (en) * 2007-10-31 2014-07-15 Alstom Grid Gmbh High-voltage circuit breaker

Also Published As

Publication number Publication date
DE502006002377D1 (de) 2009-01-29
US7902478B2 (en) 2011-03-08
ATE418152T1 (de) 2009-01-15
CN101385109A (zh) 2009-03-11
WO2007087733A1 (fr) 2007-08-09
EP1814132B1 (fr) 2008-12-17
US20090008367A1 (en) 2009-01-08
JP2009525569A (ja) 2009-07-09
CN101385109B (zh) 2011-09-28

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