EP0821382B1 - Hochspannungsschalter mit Selbstbeblasung - Google Patents

Hochspannungsschalter mit Selbstbeblasung Download PDF

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Publication number
EP0821382B1
EP0821382B1 EP97401587A EP97401587A EP0821382B1 EP 0821382 B1 EP0821382 B1 EP 0821382B1 EP 97401587 A EP97401587 A EP 97401587A EP 97401587 A EP97401587 A EP 97401587A EP 0821382 B1 EP0821382 B1 EP 0821382B1
Authority
EP
European Patent Office
Prior art keywords
compression
volume
gas
rods
circuit
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.)
Expired - Lifetime
Application number
EP97401587A
Other languages
English (en)
French (fr)
Other versions
EP0821382A1 (de
Inventor
Edmond Thuries
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 EP0821382A1 publication Critical patent/EP0821382A1/de
Application granted granted Critical
Publication of EP0821382B1 publication Critical patent/EP0821382B1/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
    • H01H33/901—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 making use of the energy of the arc or an auxiliary arc
    • 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
    • H01H2033/906—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 with pressure limitation in the compression volume, e.g. by valves or bleeder openings
    • 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
    • H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume

Definitions

  • the present invention relates to a circuit breaker with high voltage self-blowing arc.
  • circuit breaker is described for example in the European patent application no. 0 475 270.
  • the circuit breaker includes, for each phase, a insulating jacket filled with gas with good properties dielectrics, such as sulfur hexafluoride SF6, under a pressure of a few thousand hectopascals.
  • gas with good properties dielectrics such as sulfur hexafluoride SF6, under a pressure of a few thousand hectopascals.
  • a mobile assembly actuated by a control, and comprising movable main contacts and arcing contacts; the mobile assembly includes two communicating volumes, one called compression volume, cooperating with one fixed piston and the other, said volume of blowing, opening into a blowing nozzle.
  • a valve arranged in the blowing volume prevents gases from flow back into the compression volume.
  • An object of the present invention is to provide a circuit breaker in which the pressure increase is stopped by simple means.
  • the gas of the compression volume is evacuated through openings in the piston of blowing, these openings being associated with means allowing them to be kept closed between the start of the compression of the compression volume and closing the valve and open them when the valve closes, said means comprising rods sliding in said openings of the piston, these rods comprising recesses or longitudinal notches or grooves or grooves on a portion of their length, chosen so that the hollowed out part rods enters the openings when the valve closed.
  • the rods are arranged so as to lie for their greatest part inside the compression volume when the circuit breaker is in the on position.
  • the rods are arranged so as to be for the most part at outside the compression volume when the circuit breaker is in the engaged position.
  • a cylinder, carrying the movable arcing contacts includes notches or grooves or grooves or recesses, cooperating with the piston for the evacuation of the compression gas at the end of compression.
  • reference 1 represents a insulating jacket, for example ceramic, shaped cylindrical with axis xx.
  • the interior of the envelope contains a good gas dielectric properties, such as sulfur hexafluroride SF6, under pressure from a few thousand hectopascals.
  • a good gas dielectric properties such as sulfur hexafluroride SF6
  • a set fixed including a crown of contact fingers 3 for the passage of the permanent current, arranged at the end of a metal tube 4, and a metal rod 5 constituting the fixed arcing contact, the end of which is made in one alloy resistant to the effects of the arc.
  • Tube 4 and rod 5 are connected to a first outlet of the circuit breaker, not shown.
  • the breaking chamber further comprises a movable assembly comprising essentially two metallic parts substantially cylindrical 7 and 8, coaxial, mechanically secured by a transverse crown 9.
  • a first end of the inner cylinder 7 (to the right of the figure) is connected mechanically to a control not shown; the second end of cylinder 7 wears a crown of contact 10 protected by a corona hood 11.
  • These contact fingers constitute the movable arcing contact and cooperates with rod 5-5A.
  • the cylinder 8 carries at a first end (on the left in Fig. 1) a cylinder 13 cooperating with the fingers 3 for the passage of the permanent current.
  • the cylinders 7 and 8 and the crown 9 define two volumes V1 and V2, respectively designated by volume of blowing and compression volume.
  • the blowing volume V1 opens on a blowing nozzle 14 fixed to the first end of the tube 8.
  • the blowing volume V1 communicates with compression volume V2 through openings 16 practiced in crown 9; these openings can be obstructed by an annular valve 17 arranged so as to prohibit the passage of gas from the blowing volume to the volume compression.
  • the compression volume V2 is closed at its end opposite the crown 9, by a fixed annular piston 19, arranged at the end of a fixed metallic tubular piece 20.
  • This part 20 is electrically connected to its end opposite to that carrying the piston 19, at a second outlet not shown.
  • Cylinder 8 is provided with sliding electrical contacts 21, for example of accordion type, to ensure the passage of current from tube 8 to the tubular part 20.
  • a plurality of metal rods 22 fixed by one end to the end of the cylinder 7 near the crown 9, and passing through openings in piston 19. These rods bear over part of their length, recesses or grooves or notches or transverse grooves 22A, for example 3 in number, as shown in Fig. 3 which is a view of a section of a rod 22, made at the level of the zone grooves.
  • the cylinder 7 may also include, on its outer periphery, grooves or indentations or rectilinear grooves axilaes 7A, arranged like the recesses or indentations or grooves or grooves 22A.
  • the circuit breaker works as follows.
  • the current flows from the first to second outlet when crossing successively the tube 4, the fingers 3, the cylinder 13 the cylinder 7, the sliding contacts 21 and the tube 20.
  • Main contacts 3 and 13 are separate and the current switches to the arcing contacts.
  • the gas of volumes V1 and V2 is compressed under the action of piston.
  • the gas from the volume V1 relaxes and blows the arc.
  • Fig. 4 shows an alternative embodiment of the invention in which the notched stems, referenced now 22 ', are arranged outside the volume of compression. Operation is identical to that described previously.

Landscapes

  • Circuit Breakers (AREA)

Claims (4)

  1. Hochspannungslastschalter mit Gasisolierung und Bogenausblasung, umfassend einen feststehenden Hauptkontakt (3) und einen feststehenden Bogenkontakt (5 - 5A) sowie eine bewegliche Anordnung mit einem Hauptkontakt (3) und einem Bogenkontakt (10), wobei ein Kompressionsvolumen (V2) mit einem feststehenden Kolben (19) wechselwirkt und mit einem Blasvolumen (V1) in Verbindung steht, welches an einer Ausblasdüse (14) mündet, wobei das Kompressionsvolumen mit einer Klappe (17) versehen ist, die den Durchtritt von Gas von dem Blasvolumen hin zu dem Kompressionsvolumen verhindert, dadurch gekennzeichnet, dass der Kolben Öffnungen umfasst, die es ermöglichen, das Gas des Kompressionsvolumens während eines Auslösevorgangs zu evakuieren, wobei die Öffnungen einer Einrichtung (22, 22') zugeordnet sind, die es ermöglicht, sie geschlossen zu halten zwischen dem Beginn der Kompression des Kompressionsvolumens (V2) und dem Schließen der Klappe (17) und sie zu öffnen beim Schließen der Klappe (17), wobei die Einrichtung Schafte (22, 22') umfasst, die in den Öffnungen des Kolbens (19) gleiten, wobei die Schafte Längsaussparungen oder Rinnen oder Rillen oder Riefungen (22A) an einem Teil ihrer Länge aufweisen, dergestalt, dass der ausgesparte Abschnitt der Schafte in die Öffnungen gelangt, wenn die Klappe (17) sich schließt oder geschlossen wird.
  2. Lastschalter nach Anspruch 1, dadurch gekennzeichnet, dass die Schafte (22) in solch einer Weise angeordnet sind, dass sie sich zum Großteil im Inneren des Kompressionsvolumens (V2) befinden, wenn der Lastschalter in der eingelegten Position vorliegt.
  3. Lastschalter nach Anspruch 1, dadurch gekennzeichnet, dass die Schafte (22') in solch einer Weise angeordnet sind, dass sie sich zum Großteil äußerlich des Kompressionsvolumens (V2) befinden, wenn der Lastschalter in einer eingelegten Position vorliegt.
  4. Lastschalter nach Anspruch 1, dadurch gekennzeichnet, dass ein Zylinder (7), welcher die beweglichen Bogenkontakte (10) trägt, Rillen oder Rinnen oder Riefen oder Aussparungen (7A) umfasst, wechselwirkend mit dem Kolben (19) zur Evakuierung des Kompressionsgases am Ende der Kompression.
EP97401587A 1996-07-23 1997-07-03 Hochspannungsschalter mit Selbstbeblasung Expired - Lifetime EP0821382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9609212 1996-07-23
FR9609212A FR2751782B1 (fr) 1996-07-23 1996-07-23 Disjoncteur a haute tension a auto-soufflage d'arc

Publications (2)

Publication Number Publication Date
EP0821382A1 EP0821382A1 (de) 1998-01-28
EP0821382B1 true EP0821382B1 (de) 2001-11-14

Family

ID=9494345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401587A Expired - Lifetime EP0821382B1 (de) 1996-07-23 1997-07-03 Hochspannungsschalter mit Selbstbeblasung

Country Status (8)

Country Link
US (1) US5808257A (de)
EP (1) EP0821382B1 (de)
CN (1) CN1063279C (de)
CA (1) CA2210371C (de)
DE (1) DE69708222T2 (de)
ES (1) ES2165003T3 (de)
FR (1) FR2751782B1 (de)
ID (1) ID17475A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769403B1 (fr) * 1997-10-02 1999-11-12 Gec Alsthom T & D Sa Interrupteur a gaz comprime avec un engrenage a cremailleres
DE19953560C1 (de) * 1999-11-03 2001-06-07 Siemens Ag Druckgas-Leistungsschalter
JP3860553B2 (ja) * 2002-11-19 2006-12-20 三菱電機株式会社 ガス絶縁開閉装置
EP1675144A1 (de) * 2004-12-23 2006-06-28 ABB Technology AG Hochleistungsschalter mit abbrandfester Kurzschlusstromführung
DE102005019424A1 (de) * 2005-04-25 2006-11-02 Abb Technology Ag Lasttrennschalter
JP4429205B2 (ja) * 2005-05-16 2010-03-10 三菱電機株式会社 ガス絶縁機器
CN101000837B (zh) * 2006-01-13 2010-06-09 河南平高电气股份有限公司 一种高压断路器
EP2054908A1 (de) * 2006-08-21 2009-05-06 Arcoline Ltd. Mittelspannungsschutzschalter
FR2906931B1 (fr) * 2006-10-09 2009-07-17 Areva T & D Sa Chambre de coupure avec cylindre repartiteur de champ pour disjoncteurs haute ou moyenne tension
CN100449668C (zh) * 2006-10-11 2009-01-07 王光顺 用于特高压断路器的恒压吹弧分断触头
FR2922043B1 (fr) * 2007-10-03 2009-12-11 Areva T & D Sa Chambre de coupure de disjoncteur a double volume de compression
DE502007006438D1 (de) * 2007-10-16 2011-03-17 Abb Research Ltd Einem von einem überstromventil gesteuerten entlastungskanal
KR101564990B1 (ko) * 2009-08-17 2015-11-03 엘에스산전 주식회사 마찰 감소 구조를 갖는 가스 절연 개폐장치
ES2509223T3 (es) * 2010-05-31 2014-10-17 Ormazabal Y Cia., S.L.U. Interruptor de corte en gas
US11380501B2 (en) * 2019-12-31 2022-07-05 Southern States Llc High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas
CN113690093B (zh) * 2021-08-25 2023-01-24 西安西电开关电气有限公司 断路器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2411897A1 (de) * 1974-03-12 1975-09-18 Siemens Ag Anordnung zur loeschung eines lichtbogens in einem gasstroemungsschalter
JPS58108624A (ja) * 1981-12-22 1983-06-28 三菱電機株式会社 パツフア−形ガスしや断器
DE3438635A1 (de) * 1984-09-26 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
SE466979B (sv) * 1990-09-11 1992-05-04 Asea Brown Boveri Hoegspaenningsbrytare av sjaelvblaasande typ

Also Published As

Publication number Publication date
EP0821382A1 (de) 1998-01-28
DE69708222T2 (de) 2002-06-27
ES2165003T3 (es) 2002-03-01
DE69708222D1 (de) 2001-12-20
FR2751782B1 (fr) 1998-08-28
CN1063279C (zh) 2001-03-14
ID17475A (id) 1998-01-08
CA2210371C (fr) 2000-04-04
US5808257A (en) 1998-09-15
CN1175071A (zh) 1998-03-04
CA2210371A1 (fr) 1998-01-23
FR2751782A1 (fr) 1998-01-30

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