EP0807946A1 - Hochspannungs-Blaskolbenschalter - Google Patents

Hochspannungs-Blaskolbenschalter Download PDF

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Publication number
EP0807946A1
EP0807946A1 EP97401034A EP97401034A EP0807946A1 EP 0807946 A1 EP0807946 A1 EP 0807946A1 EP 97401034 A EP97401034 A EP 97401034A EP 97401034 A EP97401034 A EP 97401034A EP 0807946 A1 EP0807946 A1 EP 0807946A1
Authority
EP
European Patent Office
Prior art keywords
piston
fixed
ring
tube
front stop
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
EP97401034A
Other languages
English (en)
French (fr)
Other versions
EP0807946B1 (de
Inventor
Bernard Gallix
Roger Ledru
Antoine Tolossi
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0807946A1 publication Critical patent/EP0807946A1/de
Application granted granted Critical
Publication of EP0807946B1 publication Critical patent/EP0807946B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/88—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
    • H01H33/905—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 compression volume being formed by a movable cylinder and a semi-mobile piston

Definitions

  • the present invention relates to a self-blowing circuit breaker comprising a casing filled with a dielectric gas under pressure, two arcing contacts cooperating with each other, one forming part of a movable contact assembly secured to an operating member. and adapted to be moved axially in the envelope between a closed position and an open position, the movable contact assembly comprising a first tube carrying at its end the movable arcing contact and a second tube coaxial with the first tube , carrying at the end a movable permanent contact and delimiting, on either side of a crown connecting the first tube and the second tube, a blowing chamber closed by a blowing nozzle and a compression chamber communicating with the blown and closed by a piston.
  • Patent application 2,696,274 describes such a circuit breaker.
  • the piston is semi-mobile and means are provided for immobilizing the piston during a first part of the movement of the mobile contact assembly when the circuit breaker opens and means for, on the contrary, cause axially this same piston during a second part of the movement of this assembly.
  • the means for axially driving the movable contact assembly during this second part of the movement is constituted by a drive member integral with the movable contact assembly which drives a stop integral with the piston.
  • This stop is arranged on the path of the drive member.
  • the piston is held in a fixed position by a spring placed between the piston and the drive member and pushing the piston which is retained by a crown abutting against a fixed member. , the crown being secured to a tube itself secured to the piston.
  • the drive member slides in a lumen of the tube connecting the piston to the crown until it reaches the stop at the end of the light, then then driving the piston in the second part of the movement.
  • the spring urging the semi-mobile piston causes a permanent force on the control rod and causes an increase in the operating energy required.
  • the document EP 0 126 929 describes a compressed gas switch having a slightly different structure in the sense that there is no second tube but an annular piston 12, linked to a tube 8, carrying a nominal current contact 5 and sliding directly in an external cylindrical housing 14.
  • This arrangement ensures the automatic recoil of the free piston under the effect of the increase in pressure in the compression chamber at the time of the opening operation and thereby limits the pressure increase, it thus brings the advantages of the semi-mobile piston of the first document cited in the introduction but without the control rod being subjected to an additional force.
  • the object of the invention is therefore to propose a circuit breaker having a structure as defined in the introduction, incorporating a free piston with its advantages but which overcomes the drawback mentioned above.
  • the subject of the invention is therefore a self-blowing circuit breaker comprising a casing filled with a dielectric gas under pressure, two arcing contacts cooperating with each other, one forming part of a movable contact assembly secured to a operating member and adapted to be moved axially in the envelope between a closed position and an open position, the movable contact assembly comprising a first tube carrying at its end the movable arcing contact and a second coaxial tube to the first tube, carrying at the end a movable permanent contact delimiting, on either side of a ring connecting the first tube and the second tube, a blowing chamber closed by a blowing nozzle and a compression chamber communicating with the blowing chamber and closed by a piston, characterized in that said annular piston located between the two said tubes is mounted to slide freely between a fixed front stop and a spring of p pushed, one end of which bears on the piston and the other end of which is in fixed support, this fixed support 18 being situated on the other side of said front stop fixed relative to said
  • FIGS. 1 to 6 partially represent a circuit breaker according to the invention in its different positions during an opening operation, from the closed state in FIG. 1 to the complete opening in FIG. 6.
  • Figure 7 is an enlarged view of a detail of the preceding figures showing the piston with its recess and the ring, allowing damping when the piston returns.
  • circuit breakers comprising for each phase an insulating envelope.
  • circuit breakers with a metal shell to the ground comprising a separate envelope for each phase or a single envelope for the three phases.
  • the reference 1 designates an insulating envelope, preferably made of porcelain, delimiting an expansion chamber 2 filled with a gas with good dielectric properties, for example sulfur hexafluoride under a pressure of a few bars.
  • a gas with good dielectric properties for example sulfur hexafluoride under a pressure of a few bars.
  • the circuit breaker includes a fixed assembly and a movable contact assembly.
  • the fixed assembly comprises an arcing contact 3 and a fixed permanent contact constituted by a circular series of fingers 4. These fixed arcing 3 and permanent contact 4 are linked to a first socket outlet 5.
  • the movable contact assembly comprises an insulating operating part 6 passing through the chamber 2 and connected, at one of its ends, to a mechanism not shown. Its other end is linked to a metal assembly of movable contacts comprising two coaxial tubes 7 and 8. These two tubes 7 and 8 are interconnected by a metal ring 9.
  • the inner tube 7 carries the movable arcing contact 10 and the outer tube 8 carries the movable permanent contact 11 which cooperates, in the closed position of the circuit breaker as shown in the figure 1, by its external periphery with the fingers 4 of the fixed permanent contact.
  • a blowing nozzle 12 made of insulating material.
  • the space between the permanent movable contact 11, the movable arcing contact 10, the crown 9 and the blowing nozzle 12 constitutes a blowing chamber 13. Furthermore, the tubes 7 and 8, an annular piston 14 located between the two tubes, and the metal crown 9 delimit a compression chamber 15. This compression chamber 15 is separated from the blowing chamber 13 by the metal crown 9 equipped with one-way valves 16 allowing the passage of gas from the compression chamber 15 to the blowing chamber 13.
  • Fingers 17 of permanent contact linked to a bottom plate 18 connected to a second socket not shown, are in sliding electrical contact with the external tube 8.
  • the annular piston 14 is mounted to slide freely between a fixed front stop and a thrust spring 19, one end of which bears on the piston and the other against the fixed bottom plate 18.
  • the annular piston 14 also slides along three fixed tie rods 20 (only one is visible in the figures), the head 21 of which serves as a fixed front stop for the piston 14.
  • the fixed tie rods 20 are fixed to a fixed sleeve 22 linked to the bottom plate 18. This sleeve 22 guides the spring 19.
  • the piston 14 is equipped with a valve 23 allowing the passage of gas from the expansion chamber 2 to the compression chamber 15 and not in the opposite direction. It further comprises an annular recess 24 clearly visible in FIGS. 3, 4 and 5.
  • a floating ring 25 is housed at the bottom of this recess 24, pushed by the piston against a fixed washer 26, itself bearing against the head 21 of the tie rods 20.
  • the floating ring 25 is pierced with three holes at 120 ° for the passage of the tie rods and also of holes 27 interposed between the passage holes of the tie rods 20.
  • the floating ring 25 is mounted between the fixed washer 26 and a rear retaining member 28 constituting a collar of a barrel 29.
  • This barrel 29 is immobilized axially on the tie rod 20 by a shoulder 30 of the tie rod and by the head 21 of the tie rod 20.
  • the head 21 is actually a screw head tightening the fixed washer 26 and the barrel 29 against the shoulder 30 of the tie rod 20.

Landscapes

  • Circuit Breakers (AREA)
EP97401034A 1996-05-13 1997-05-07 Hochspannungs-Blaskolbenschalter Expired - Lifetime EP0807946B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605912A FR2748598B1 (fr) 1996-05-13 1996-05-13 Disjoncteur a haute tension a auto-soufflage
FR9605912 1996-05-13

Publications (2)

Publication Number Publication Date
EP0807946A1 true EP0807946A1 (de) 1997-11-19
EP0807946B1 EP0807946B1 (de) 2001-12-12

Family

ID=9492067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401034A Expired - Lifetime EP0807946B1 (de) 1996-05-13 1997-05-07 Hochspannungs-Blaskolbenschalter

Country Status (7)

Country Link
US (1) US5898150A (de)
EP (1) EP0807946B1 (de)
DE (1) DE69708966T2 (de)
EG (1) EG21480A (de)
ES (1) ES2167691T3 (de)
FR (1) FR2748598B1 (de)
PT (1) PT807946E (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152446A1 (de) * 2000-05-03 2001-11-07 Alstom Lastschalter mit einer mobilen Einheit versehen in einem gasgefüllten Gehäuse
FR2892851A1 (fr) * 2005-11-03 2007-05-04 Areva T & D Sa Chambre de coupure de courant a double chambre de compression
EP2045827A1 (de) * 2007-10-03 2009-04-08 Areva T&D Sa Trennkammer eines Überlastschalters mit doppeltem Kompressionsvolumen

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4174094B2 (ja) * 1998-01-29 2008-10-29 株式会社東芝 ガス遮断器
US6310311B1 (en) * 1999-08-05 2001-10-30 Gary Hakes Integrated bushing component
FR2799571B1 (fr) * 1999-10-07 2001-12-21 Schneider Electric High Voltag Disjoncteur a autoexpansion a clapet de surpression et de remplissage
EP1675145A1 (de) * 2004-12-23 2006-06-28 ABB Technology AG Hochleistungsschalter mit Dichtung gegen Heissgas
KR101013709B1 (ko) * 2008-12-03 2011-02-10 엘에스산전 주식회사 수배전반의 고속 투입 스위치
KR101309317B1 (ko) * 2009-09-10 2013-09-30 엘에스산전 주식회사 가스 차단기용 밸브 및 그를 이용한 가스 차단기
EP2343721A1 (de) * 2010-01-06 2011-07-13 ABB Research Ltd. Gasisolierter Hochspannungsschalter
CN102592876B (zh) * 2012-03-01 2014-10-01 广东金晖隆开关有限公司 吹气灭弧负荷开关
EP3504726B1 (de) * 2016-08-26 2020-12-02 ABB Power Grids Switzerland AG Schalter und verfahren zum trennen eines schalters
CN111199849B (zh) * 2019-12-26 2021-12-17 河南平高电气股份有限公司 灭弧室的动触头组件及使用该动触头组件的动触头装配

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126929A2 (de) * 1983-05-31 1984-12-05 BBC Brown Boveri AG Druckgasschalter
EP0475270A2 (de) * 1990-09-11 1992-03-18 Asea Brown Boveri Ab Hochspannungsschalter mit Selbstbeblasung
FR2696274A1 (fr) * 1992-09-29 1994-04-01 Alsthom Gec Disjoncteur à haute tension à auto-soufflage ayant une chambre de coupure à compression de gaz réduite.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696274A (en) * 1953-06-15 1954-12-07 Southern Lightweight Aggregate Air and gas treatment system
DE3127678A1 (de) * 1981-07-14 1983-02-10 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Hochspannungs-leistungsschalter
DE3141324C2 (de) * 1981-10-17 1986-02-06 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Leistungsschalter
SE432321B (sv) * 1982-08-16 1984-03-26 Asea Ab Elektrisk brytare med gasformigt sleckmedel
US4609798A (en) * 1984-07-27 1986-09-02 Alsthom Means for assembling two enclosures of an electrical cutout apparatus
FR2638564B1 (fr) * 1988-11-02 1990-11-30 Alsthom Gec Disjoncteur a haute tension a gaz dielectrique sous pression
EP1269292A1 (de) * 2000-04-05 2003-01-02 ODS Properties, Inc. Verfahren und system zur anerkennung von ausgewählten wettspielern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126929A2 (de) * 1983-05-31 1984-12-05 BBC Brown Boveri AG Druckgasschalter
EP0475270A2 (de) * 1990-09-11 1992-03-18 Asea Brown Boveri Ab Hochspannungsschalter mit Selbstbeblasung
FR2696274A1 (fr) * 1992-09-29 1994-04-01 Alsthom Gec Disjoncteur à haute tension à auto-soufflage ayant une chambre de coupure à compression de gaz réduite.
EP0591039A1 (de) * 1992-09-29 1994-04-06 Gec Alsthom T Et D Sa Hochspannung selbst-Blaslastscharter mit Schnittkammer mit reduzierter Gaskompression

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152446A1 (de) * 2000-05-03 2001-11-07 Alstom Lastschalter mit einer mobilen Einheit versehen in einem gasgefüllten Gehäuse
FR2808618A1 (fr) * 2000-05-03 2001-11-09 Alstom Disjoncteur comportant, dans une enveloppe remplie d'un gaz dielectrique sous pression, un ensemble mobile
US6472628B2 (en) 2000-05-03 2002-10-29 Alstom Circuit-breaker including a moving assembly contained inside a casing filled with a dielectric gas under pressure
FR2892851A1 (fr) * 2005-11-03 2007-05-04 Areva T & D Sa Chambre de coupure de courant a double chambre de compression
WO2007051778A1 (fr) * 2005-11-03 2007-05-10 Areva T & D Sa Chambre de coupure de courant a double chambre de compression
CN101300654B (zh) * 2005-11-03 2011-06-08 阿雷瓦T&D股份有限公司 具有两个压缩腔室的中断腔室
US7964816B2 (en) 2005-11-03 2011-06-21 Areva T&T SA Interrupting chamber having two compression chambers
KR101332724B1 (ko) * 2005-11-03 2013-11-25 알스톰 그리드 에스아에스 이중의 압축 챔버를 구비한 전류 차단기 장치
EP2045827A1 (de) * 2007-10-03 2009-04-08 Areva T&D Sa Trennkammer eines Überlastschalters mit doppeltem Kompressionsvolumen
FR2922043A1 (fr) * 2007-10-03 2009-04-10 Areva T & D Sa Chambre de coupure de disjoncteur a double volume de compression
US8044318B2 (en) 2007-10-03 2011-10-25 Areva T&D Sa Interrupting chamber of a circuit-breaker having two compression volumes

Also Published As

Publication number Publication date
PT807946E (pt) 2002-05-31
US5898150A (en) 1999-04-27
FR2748598A1 (fr) 1997-11-14
FR2748598B1 (fr) 1998-06-05
DE69708966T2 (de) 2002-08-01
DE69708966D1 (de) 2002-01-24
EG21480A (fr) 2001-11-28
ES2167691T3 (es) 2002-05-16
EP0807946B1 (de) 2001-12-12

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