EP0634049B1 - High-tension circuit-breaker - Google Patents

High-tension circuit-breaker Download PDF

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Publication number
EP0634049B1
EP0634049B1 EP93903797A EP93903797A EP0634049B1 EP 0634049 B1 EP0634049 B1 EP 0634049B1 EP 93903797 A EP93903797 A EP 93903797A EP 93903797 A EP93903797 A EP 93903797A EP 0634049 B1 EP0634049 B1 EP 0634049B1
Authority
EP
European Patent Office
Prior art keywords
valve
space
compression
pressure
low
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
EP93903797A
Other languages
German (de)
French (fr)
Other versions
EP0634049A1 (en
Inventor
Volker Lehmann
Heiner Marin
Ingolf Reiher
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
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0634049A1 publication Critical patent/EP0634049A1/en
Application granted granted Critical
Publication of EP0634049B1 publication Critical patent/EP0634049B1/en
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
    • H01H33/91—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
    • 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
    • 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

Definitions

  • the invention relates to an electrical high-voltage circuit breaker with self-generated extinguishing gas flow and with a compression device for blowing arcs, in which a heatable by the arc energy, the separating section immediately adjacent pressure chamber is connected to a compression space associated with the compression device, possibly valve-controlled, and in which the compression space is connected to a low pressure space via a pressure relief valve having a movable valve plate on the one hand and a refill valve having a movable valve plate on the other hand.
  • the invention has for its object to simplify the assembly effort for the valve control in an electrical high-voltage circuit breaker of the type mentioned.
  • this is achieved in that the two valve plates of the valves arranged between the compression space and the low pressure space as two directly adjacent concentric washers of different diameters with partial overlap are formed and combined into a single valve device.
  • the application of the invention simplifies the assembly of the single valve device for refilling and relieving excess pressure.
  • the first of the ring disks with a smaller diameter is pressed against the stationary pressure as a valve seat on the side facing the low-pressure chamber under spring load and lifts off from the valve seat when a predetermined excess pressure arises in the compression chamber.
  • the other of the ring disks with a larger diameter rests as a rattling valve with its inner opening edge sealingly against the first ring disk and lies with its outer edge against a fixed stop as a valve seat, such that this other ring disk has the passage cross-section when the compression device moves in the switch-on direction releases between the compression space and the low pressure space for refilling the compression space.
  • the spring loading of the first ring washer is advantageously adjustable.
  • the two annular disks can surround a switching rod which passes through the compression space and the low-pressure space and moves the compression device.
  • the high-voltage circuit breaker shown schematically in FIG. 1 has a fixed contact 1, which is in engagement with a movable contact 2. To separate the two contact pieces, contact piece 2 is moved in the direction of arrow 3.
  • a movable part of the compression device and the cylinder 7 shown in FIG. 1 delimit a compression space 8 together with a piston crown 9, which is arranged in a stationary manner and delimits a low-pressure space 10 with respect to the compression space 8.
  • the stationary piston head 9 has through openings for a pressure relief valve on the one hand and a refill valve on the other hand.
  • valve device 11 consists of two concentric annular disks 12, 13 lying directly against one another, which have different diameters and partially overlap one another in area A.
  • the annular disc 12 forms the valve disk for the pressure relief valve arranged between the compression space 8 and the low pressure space 10.
  • This first ring disk 12 has a smaller diameter than the other ring disk 13. It is on the side facing the low-pressure chamber 10 under the load of coil springs 14, which are distributed uniformly over the circumference are arranged, pressed against a stationary stop 15 as a valve seat, and lifts off from the valve seat 15 in the event of a predetermined excess pressure occurring in the compression space 8.
  • the other ring disk 13 has a larger diameter and is designed as a so-called rattling valve. It lies with its inner opening edge 16 sealingly against the first ring disk 12 and lies with its outer edge 17 against a fixed stop 18 as a valve seat.
  • the springs 14 are pretensioned by screws 19, and the spring loading of the first ring disk 12 can be made adjustable by turning the screws 19.
  • the two annular disks 12, 13 surround the shift rod 20 which passes through the compression chamber 8 and the low-pressure chamber 10 and moves the compression device 7.

Landscapes

  • Circuit Breakers (AREA)
  • Safety Valves (AREA)

Abstract

The invention concerns an self blow-out switch having a compression device and in which a pressure chamber heated by electric-arc energy is connected to a compression space, optionally with valve control. The compression space is connected to the low-pressure space via a pressure-relief valve and a refill valve. The invention calls for the two valve discs of the valves, which are located between the compression space (8) and the low-pressure space (10), to be designed as two concentric washers (12, 13) of different dimensions, lying in direct contact with each other and partly overlapping each other, and integrated to form a single valve unit.

Description

Die Erfindung bezieht sich auf einen elektrischen Hochspannungs-Leistungsschalter mit selbsterzeugter Löschgasströmung und mit einer Kompressionseinrichtung zu Beblasung von Lichtbögen, bei dem eine von der Lichtbogenenergie aufheizbare, der Trennstrecke unmittelbar benachbarte Druckkammer mit einem der Kompressionseinrichtung zugehörigen Kompressionsraum, ggf. ventilgesteuert, verbunden ist, und bei dem der Kompressionsraum über ein einen beweglichen Ventilteller aufweisendes Überdruckventil einerseits und ein einen beweglichen Ventilteller aufweisendes Nachfüllventil andererseits mit einem Niederdruckraum verbunden ist.The invention relates to an electrical high-voltage circuit breaker with self-generated extinguishing gas flow and with a compression device for blowing arcs, in which a heatable by the arc energy, the separating section immediately adjacent pressure chamber is connected to a compression space associated with the compression device, possibly valve-controlled, and in which the compression space is connected to a low pressure space via a pressure relief valve having a movable valve plate on the one hand and a refill valve having a movable valve plate on the other hand.

Bei derartigen elektrischen Hochspannungsleistungsschaltern, wie sie beispielsweise aus der DE-A- 37 20 816 als bekannt hervorgehen, ist eine Vielzahl von Ventilen zur Steuerung von Strömungs- und Druckverhältnissen im Leistungsschalter vorgesehen, die an unterschiedlichen Stellen der Kompressionseinrichtung einzusetzen sind und einen vergleichsweise hohen Montageaufwand bedingen.In such electrical high-voltage circuit breakers, as are known, for example, from DE-A-37 20 816, a large number of valves for controlling flow and pressure conditions in the circuit breaker are provided, which are to be used at different points in the compression device and require a comparatively high outlay on assembly condition.

Der Erfindung liegt die Aufgabe zugrunde, bei einem elektrischen Hochspannungs-Leistungsschalter der eingangs genannten Art den Montageaufwand für die Ventilsteuerung zu vereinfachen.The invention has for its object to simplify the assembly effort for the valve control in an electrical high-voltage circuit breaker of the type mentioned.

Nach der Erfindung wird dies dadurch gelöst, daß die beiden Ventilteller der zwischen dem Kompressionsraum und dem Niederdruckraum angeordneten Ventile als zwei unmittelbar aneinander liegende konzentrische Ringscheiben unterschiedlichen Durchmessers mit teilweiser Überlappung ausgebildet und zu einer einzigen Ventileinrichtung zusammengefaßt sind.According to the invention this is achieved in that the two valve plates of the valves arranged between the compression space and the low pressure space as two directly adjacent concentric washers of different diameters with partial overlap are formed and combined into a single valve device.

Durch Anwendung der Erfindung ist die Montage der einzigen Ventileinrichtung zum Nachfüllen und zum Abbau eines Überdruckes wesentlich vereinfacht.The application of the invention simplifies the assembly of the single valve device for refilling and relieving excess pressure.

Bei einem bevorzugten Ausführungsbeispiel der erfindungsgemäßen Ausführungsform ist die erste der Ringscheiben mit kleinerem Durchmesser auf der dem Niederdruckraum zugewandten Seite unter Federbelastung gegen einen ortsfesten Anschlag als Ventilsitz angedrückt und hebt bei einem im Kompressionsraum entstehenden vorbestimmten Überdruck vom Ventilsitz ab. Die andere der Ringscheiben mit größerem Durchmesser legt sich als Klapperventil mit ihrem inneren öffnungsrand gegen die erste Ringscheibe dichtend an und liegt mit ihrem äußeren Rand an einem ortsfesten Anschlag als Ventilsitz an, derart, daß diese andere Ringscheibe bei einer Bewegung der Kompressionseinrichtung in Einschaltrichtung den Durchtrittsquerschnitt zwischen dem Kompressionsraum und dem Niederdruckraum zum Nachfüllen des Kompressionsraumes freigibt.In a preferred embodiment of the embodiment according to the invention, the first of the ring disks with a smaller diameter is pressed against the stationary pressure as a valve seat on the side facing the low-pressure chamber under spring load and lifts off from the valve seat when a predetermined excess pressure arises in the compression chamber. The other of the ring disks with a larger diameter rests as a rattling valve with its inner opening edge sealingly against the first ring disk and lies with its outer edge against a fixed stop as a valve seat, such that this other ring disk has the passage cross-section when the compression device moves in the switch-on direction releases between the compression space and the low pressure space for refilling the compression space.

Mit Vorteil ist die Federbelastung der ersten Ringscheibe einstellbar. Die beiden Ringscheiben können bei einer vorteilhaften Ausführungsform des erfindungsgemäßen Hochspannungs-Leistungsschalters eine den Kompressionsraum und den Niederdruckraum durchsetzende, die Kompressionseinrichtung bewegende Schaltstange umgeben.The spring loading of the first ring washer is advantageously adjustable. In an advantageous embodiment of the high-voltage circuit breaker according to the invention, the two annular disks can surround a switching rod which passes through the compression space and the low-pressure space and moves the compression device.

Anhand der Zeichnung ist ein Ausführungsbeispiel eines elektrischen Hochspannungs-Leistungsschalters nach der Erfindung beschrieben und die Wirkungsweise erläutert:Based on the drawing is an embodiment of a described electrical high-voltage circuit breaker according to the invention and explains the mode of operation:

Der in Figur 1 schematisch dargestellte Hochspannungs-Leistungsschalter weist ein feststehendes Schaltstück 1 auf, das mit einem beweglichen Schaltstück 2 in Eingriff steht. Zur Trennung der beiden Schaltstücke wird das Schaltstück 2 in Pfeilrichtung 3 bewegt. Mit dem beweglichen Schaltstück ist starr eine von einer Düse 4 zur Führung des Löschgasstromes gebildete Druckkammer 5, die von einem mit dem Schaltstück 2 starr verbundenen Boden 6 begrenzt wird, verbunden und wird mitbewegt. Ein beweglicher Teil der Kompressionseinrichtung und der in der Figur 1 dargestellte Zylinder 7 begrenzen einen Kompressionsraum 8 gemeinsam mit einem Kolbenboden 9, der ortsfest angeordnet ist und gegenüber dem Kompressionsraum 8 einen Niederdruckraum 10 begrenzt. Der ortsfeste Kolbenboden 9 hat Durchtrittsöffnungen für ein Überdruckventil einerseits und ein Nachfüllventil andererseits.The high-voltage circuit breaker shown schematically in FIG. 1 has a fixed contact 1, which is in engagement with a movable contact 2. To separate the two contact pieces, contact piece 2 is moved in the direction of arrow 3. A pressure chamber 5, which is formed by a nozzle 4 for guiding the extinguishing gas flow and is delimited by a base 6 rigidly connected to the switching element 2, is rigidly connected to the movable contact piece and is moved along with it. A movable part of the compression device and the cylinder 7 shown in FIG. 1 delimit a compression space 8 together with a piston crown 9, which is arranged in a stationary manner and delimits a low-pressure space 10 with respect to the compression space 8. The stationary piston head 9 has through openings for a pressure relief valve on the one hand and a refill valve on the other hand.

Wie die Figur 2 in einer vergörßerten Darstellung zu erkennen gibt, sind die beiden Ventilteller des Überdruckventils und des Nachfüllventils zu einer einzigen Ventileinrichtung 11 zusammengefaßt. Diese Ventileinrichtung 11 besteht aus zwei unmittelbar aneinanderliegenden, konzentrischen Ringscheiben 12, 13, die unterschiedliche Durchmesser haben und einander teilweise im Bereich A überlappen. Die Ringscheibe 12 bildet den Ventilteller für das zwischen dem Kompressionsraum 8 und dem Niederdruckraum 10 angeordnete Überdruckventil. Diese erste Ringscheibe 12 weist einen kleineren Durchmesser als die andere Ringscheibe 13 auf. Sie ist auf der dem Niederdruckraum 10 zugewandten Seite unter der Belastung von Schraubenfedern 14, die gleichmäßig über den Umfang verteilt angeordnet sind, gegen einen ortsfesten Anschlag 15 als Ventilsitz angedrückt, und hebt bei einem im Kompressionsraum 8 entstehenden, vorbestimmten Überdruck vom Ventilsitz 15 ab. Die andere Ringscheibe 13 weist einen größeren Durchmesser auf und ist als sog. Klapperventil ausgeführt. Sie legt sich mit ihrem inneren Öffnungsrand 16 gegen die erste Ringscheibe 12 dichtend an und liegt mit ihrem äußeren Rand 17 an einem ortsfesten Anschlag 18 als Ventilsitz an. Bei einer Bewegung der Kompressionseinrichtung 7 in Einschaltrichtung, d. h. entgegen der Pfeilrichtung 3, wird der Durchtrittsquerschnitt zwischen dem Kompressionsraum 8 und dem Niederdruckraum 10 zum Nachfüllen des Kompressionsraumes freigegeben.As can be seen in an enlarged representation in FIG. 2, the two valve plates of the pressure relief valve and the refill valve are combined to form a single valve device 11. This valve device 11 consists of two concentric annular disks 12, 13 lying directly against one another, which have different diameters and partially overlap one another in area A. The annular disc 12 forms the valve disk for the pressure relief valve arranged between the compression space 8 and the low pressure space 10. This first ring disk 12 has a smaller diameter than the other ring disk 13. It is on the side facing the low-pressure chamber 10 under the load of coil springs 14, which are distributed uniformly over the circumference are arranged, pressed against a stationary stop 15 as a valve seat, and lifts off from the valve seat 15 in the event of a predetermined excess pressure occurring in the compression space 8. The other ring disk 13 has a larger diameter and is designed as a so-called rattling valve. It lies with its inner opening edge 16 sealingly against the first ring disk 12 and lies with its outer edge 17 against a fixed stop 18 as a valve seat. When the compression device 7 moves in the switch-on direction, ie counter to the direction of the arrow 3, the passage cross section between the compression space 8 and the low-pressure space 10 is released for refilling the compression space.

Die Federn 14 werden von Schrauben 19 vorgespannt, wobei die Federbelastung der ersten Ringscheibe 12 durch Verdrehen der Schrauben 19 einstellbar gemacht sein kann. Wie die Figur 2 erkennen läßt, umgeben die beiden Ringscheiben 12,13 die den Kompressionsraum 8 und den Niederdruckraum 10 durchsetzende, die Kompressionseinrichtung 7 bewegende Schaltstange 20.The springs 14 are pretensioned by screws 19, and the spring loading of the first ring disk 12 can be made adjustable by turning the screws 19. As can be seen in FIG. 2, the two annular disks 12, 13 surround the shift rod 20 which passes through the compression chamber 8 and the low-pressure chamber 10 and moves the compression device 7.

Wenn eine der beiden Ringscheiben 12, 13 entweder beim Auftreten von Überdruck im Kompressionsraum 8 oder beim Nachfüllen des Kompressionsraumes 8 von ihren Dichtflächen abhebt, stehen für das Löschgas jeweils zwei Strömungswege, nämlich radial innen oder außen an der jeweiligen Ringscheibe 12 oder 13 vorbei zur Verfügung. Hierdurch ist ein dem Bedarf in der jeweiligen Strömungsrichtung angepaßt großer Strömungsquerschnitt für das Löschgas erreichbar.If one of the two annular disks 12, 13 lifts off their sealing surfaces either when excess pressure occurs in the compression space 8 or when the compression space 8 is refilled, two flow paths are available for the extinguishing gas, namely radially inside or outside the respective annular disk 12 or 13 . As a result, a large flow cross section adapted to the need in the respective flow direction can be achieved for the extinguishing gas.

Claims (5)

  1. Electric high voltage circuit-breaker having a self-generated quenching-gas flow and having a compression device for the blow-out of electric arcs, in which circuit-breaker a pressure chamber (5), which can be heated up by the electric-arc energy and is directly adjacent to the isolating gap section, is connected, if appropriate in a valve-controlled manner, to a compression space (8) which is associated with the compression device, and in which circuit-breaker the compression space is connected to a low-pressure space (10), on the one hand by way of an excess-pressure valve which has a movable valve head and on the other hand by way of a top-up valve which has a movable valve head, characterised in that the two valve heads of the valves arranged between the compression space (8) and the low-pressure space (10) are formed as two concentric ring-type discs (12, 13), which rest directly against each other, have different diameters and partially overlap, and said valve heads are combined to form a single valve device.
  2. Electric high voltage circuit-breaker according to claim 1, characterised in that the first of the ring-type discs (12), which has a comparatively small diameter, is pressed, on the side which faces the low-pressure space (10), with spring-loading against a fixed limit stop as a valve seat (15), and lifts off from the valve seat (15) when a pre-determined excess pressure occurs in the compression space (8).
  3. Electric high voltage circuit-breaker according to claim 2, characterised in that the other ring-type disc (13), which has a larger diameter, as a flap-valve, is applied in a sealing manner with its inner opening edge (16) against the first ring-type disc (12), and rests with its outer edge (17) on a fixed limit stop (18) as a valve seat, and in the case of a movement of the compression device in the closing direction frees the cross-section between the compression space (8) and the low-pressure space (10) for the purpose of topping up the compression space.
  4. Electric high voltage circuit-breaker according to claim 2 or 3, characterised in that the spring-loading of the first ring-type disc (12) is adjustable.
  5. Electric high voltage circuit-breaker according to one of the claims 1 to 4, characterised in that the two ring-type discs (12, 13) surround a switch rod (20), which passes through the compression space (8) and the low-pressure space (10) and moves the compression device.
EP93903797A 1992-03-31 1993-02-09 High-tension circuit-breaker Expired - Lifetime EP0634049B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4211159A DE4211159A1 (en) 1992-03-31 1992-03-31 Electrical high-voltage circuit breaker
DE4211159 1992-03-31
PCT/DE1993/000129 WO1993020573A1 (en) 1992-03-31 1993-02-09 High-tension circuit-breaker

Publications (2)

Publication Number Publication Date
EP0634049A1 EP0634049A1 (en) 1995-01-18
EP0634049B1 true EP0634049B1 (en) 1996-05-15

Family

ID=6455951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93903797A Expired - Lifetime EP0634049B1 (en) 1992-03-31 1993-02-09 High-tension circuit-breaker

Country Status (5)

Country Link
US (1) US5589673A (en)
EP (1) EP0634049B1 (en)
CA (1) CA2133330C (en)
DE (2) DE4211159A1 (en)
WO (1) WO1993020573A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8822868B2 (en) 2011-03-17 2014-09-02 Abb Technology Ag Gas-insulated high-voltage power circuit breaker
EP3419039A1 (en) 2017-06-20 2018-12-26 General Electric Technology GmbH Electric high-voltage circuit breaker

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536673A1 (en) * 1995-09-30 1997-04-03 Asea Brown Boveri Circuit breaker
DE19910166C2 (en) * 1999-02-24 2001-01-25 Siemens Ag High-voltage circuit breaker with a compression device
EP1863054B1 (en) * 2006-05-29 2010-01-27 ABB Technology AG A puffer circuit breaker with an overpressure valve
EP1926116B1 (en) * 2006-11-27 2011-09-07 ABB Technology AG Puffer circuit breaker with reduced puffer volume pressure
US8091429B2 (en) * 2009-08-14 2012-01-10 The Johns Hopkins University Apparatus and method for high frequency low pressure arc flash sensor
EP2299464B1 (en) * 2009-09-17 2016-08-31 ABB Schweiz AG Self-blow switch with filling and excess pressure valve
KR101657454B1 (en) * 2014-09-25 2016-09-21 현대중공업 주식회사 Gas isolated circuit breaker
DE102019212109A1 (en) * 2019-08-13 2021-02-18 Siemens Aktiengesellschaft Electrical switchgear
EP3979287A1 (en) * 2020-09-30 2022-04-06 Siemens Energy Global GmbH & Co. KG Circuit breaker, valve assembly and operating method thereof
EP4224504A1 (en) * 2022-02-02 2023-08-09 Hitachi Energy Switzerland AG High voltage circuit-breaker

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4426561A (en) * 1982-01-19 1984-01-17 Westinghouse Electric Corp. Puffer-type compressed-gas circuit-interrupter
DE3720816A1 (en) * 1987-06-24 1989-01-05 Licentia Gmbh SWITCH WITH SELF-GENERATED EXHAUST GAS FLOW
FR2646013B1 (en) * 1989-04-17 1996-02-23 Alsthom Gec MEDIUM VOLTAGE CIRCUIT BREAKER
DE4015179C2 (en) * 1990-05-11 1994-03-10 Licentia Gmbh Gas pressure switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8822868B2 (en) 2011-03-17 2014-09-02 Abb Technology Ag Gas-insulated high-voltage power circuit breaker
EP3419039A1 (en) 2017-06-20 2018-12-26 General Electric Technology GmbH Electric high-voltage circuit breaker
WO2018234076A1 (en) 2017-06-20 2018-12-27 General Electric Technology Gmbh Electric high-voltage circuit breaker
US11145476B2 (en) 2017-06-20 2021-10-12 General Electric Technology Gmbh Electric high-voltage circuit breaker

Also Published As

Publication number Publication date
CA2133330A1 (en) 1993-10-01
CA2133330C (en) 1999-04-27
US5589673A (en) 1996-12-31
DE4211159A1 (en) 1993-10-07
WO1993020573A1 (en) 1993-10-14
EP0634049A1 (en) 1995-01-18
DE59302616D1 (en) 1996-06-20

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