EP0895643B1 - Unterbrechereinheit eines hochspannungs-leistungsschalters - Google Patents
Unterbrechereinheit eines hochspannungs-leistungsschalters Download PDFInfo
- Publication number
- EP0895643B1 EP0895643B1 EP97923755A EP97923755A EP0895643B1 EP 0895643 B1 EP0895643 B1 EP 0895643B1 EP 97923755 A EP97923755 A EP 97923755A EP 97923755 A EP97923755 A EP 97923755A EP 0895643 B1 EP0895643 B1 EP 0895643B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- interrupter unit
- insulating
- insulating material
- circuit breaker
- 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
Links
Images
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
-
- 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
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
Definitions
- the invention relates to an interrupter unit High-voltage circuit breaker with at least two arcing contact pieces and a hollow cylindrical insulating material nozzle, that of blowing one if necessary between the Arcing contact pieces is used for burning arcing and the attached to a cylindrical component of the interrupter unit is.
- Such a breaker unit is for example from the FR 2 491 675 A1 known. According to the construction there an insulating nozzle body in a metallic cylindrical Component of the interrupter unit held.
- the present invention is therefore based on the object of designing an interrupter unit of the type mentioned at the outset in such a way that the insulating material nozzle is reliably fastened with the simplest possible means.
- the object is achieved in that the insulating nozzle has an internal or external thread screwed to the cylindrical component and that a connector which can be fastened to the interrupter unit is provided and supports the nozzle on its outer surface opposite the thread and which secures the insulating nozzle against twisting has knurling on its side facing the insulating material nozzle.
- the nozzle according to the invention thus fulfills two tasks. On the one hand it supports the insulating material nozzle on the thread opposite side, so the insulating nozzle too due to high mechanical and thermal loads the thread can be pulled out. On the other hand prevented the nozzle through its knurling on the insulating nozzle facing the twist of the insulating material nozzle, and thus unscrewing the nozzle from the Thread.
- the construction can be designed in such a way that the insulating material nozzle has an internal thread that is screwed onto a component of the interrupter unit and that the nozzle is pushed onto the outside of the insulating material nozzle.
- the nozzle then has knurling on its inside.
- Another embodiment of the invention provides that the insulating material nozzle has an external thread on its outer lateral surface, which is screwed into a cylindrical component of the interrupter unit and that the connecting piece is inserted into the insulating material nozzle.
- the nozzle then has knurling on its outer surface.
- the dimensions of the socket and the insulating material nozzle are coordinated with one another in such a way that the knurling is pressed into the material of the nozzle when it is axially pushed onto or into the insulating material nozzle.
- the nozzle is then connected to the interrupter unit and not rotatable.
- An advantageous embodiment of the invention provides that the nozzle is connected to a flange which is connected to the cylindrical Component of the interrupter unit non-rotatably connected is.
- This flange can for example by means of its circumference distributed screws with the cylindrical component of the interrupter unit be connected.
- the cylindrical component of the interrupter unit can, for example through a floor of a compression or heating gas room be educated.
- the interrupter unit has two arcing contact pieces 1, 2, which face each other coaxially and two continuous current contact pieces 12, 13, each one of the arcing contact pieces surrounded concentrically.
- the first arcing contact 1 is designed as a tulip contact and is in the Driven in the direction of arrow 14 during a switch-off movement.
- an arc 4 burns between the arcing contact pieces 1, 2 and heats up the extinguishing gas, for example SF 6, in its area of influence.
- This quenching gas flows at least partially through the channel 15 into the heating gas space 16, where it is initially stored and from where it flows back to the arc as soon as the quenching gas pressure drops there. This is normally the case when the current to be switched is at zero current.
- the extinguishing gas flowing back then blows the arc 4 and supports the deletion or the dielectric reconsolidation the switching distance between the arcing contact pieces 1, 2.
- an insulating gas nozzle 3 which surrounds the arc.
- the insulating material nozzle 3 is driven by the first one Contact piece 1 when switching off in the direction of the arrow 14 accelerated very strongly.
- the insulating nozzle 3 is screwed into the flange 5 and has an external thread for this purpose, which fits into an internal thread of the flange 5 engages.
- the Stub 7 pushed into the insulating nozzle and supports the insulating material nozzle against radial deformation from the inside.
- a flange 11 which is the nozzle body radially covered and with the flange 5 by means of screws 17 is connected. This ensures that the Stub 7 is not rotatable.
- the nozzle 7 has knurling on its outer surface 10 on, which is pressed into the nozzle body 3 and thus rotation of the nozzle body 3 in the thread 6 prevented.
- the nozzle 7 and the flange 11 are advantageous made of a metal, for example aluminum.
- the interrupter unit is from an insulating material housing 18 enclosed gas-tight.
Landscapes
- Circuit Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
Die Aufgabe wird erfindungsgemäß dadurch gelost, daß die Isolierstoffdüse ein mit dem zylindrischen Bauteil verschraubtes Innen- oder Außengewinde aufweist und daß ein an der Unterbrechereinheit befestigbarer Stutzen vorgesehen ist, der die Düse an ihrer dem Gewinde gegenüberliegenden Mantelfläche stützt und der zur Sicherung der Isolierstoffdüse gegen Verdrehen auf seiner der Isolierstoffdüse zugewandten Seite eine Rändelung aufweist.
In beiden Fällen sind die Maße des Stutzens und der Isolierstoffdüse derart aufeinander abgestimmt, daß die Rändelung sich bei dem axialen Aufschieben oder Einschieben auf bzw. in die Isolierstoffdüse in das Material der Düse eindrückt.
- Figur 1
- schematisch einen Längsschnitt durch eine Unterbrechereinheit,
- Figur 2
- eine Seitenansicht des Stutzens mit dem Flansch.
Claims (2)
- Unterbrechereinheit eines Hochspannungs-Leistungsschalters mit wenigstens zwei Lichtbogenkontaktstücken (1, 2) und einer hohlzylindrischen Isolierstoffdüse (3), die der Beblasung eines gegebenenfalls zwischen den Lichtbogenkontaktstücken (1, 2) brennenden Lichtbogens (4) dient und die an einem zylindrischem Bauteil (5) der Unterbrechereinheit befestigt ist, dadurch gekennzeichnet, daß die Isolierstoffdüse (3) ein mit dem zylindrischen Bauteil (5) verschraubtes Innen- oder Außengewinde (6) aufweist und daß ein an der Unterbrechereinheit befestigbarer Stutzen (7) vorgesehen ist, der die Düse an ihrer dem Gewinde (6) gegenüberliegenden Mantelfläche (8) stützt und der zur Sicherung der Isolierstoffdüse gegen Verdrehen auf seiner der Isolierstoffdüse zugewandten Seite (9) eine Rändelung (10) aufweist.
- Unterbrechereinheit nach Anspruch 1, dadurch gekennzeichnet, daß der Stutzen (7) mit einem Flansch (11) verbunden ist, der mit dem zylindrischen Bauteil (5) der Unterbrechereinheit fest verbunden ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29607660U DE29607660U1 (de) | 1996-04-22 | 1996-04-22 | Unterbrechereinheit eines Hochspannungs-Leistungsschalters |
DE29607660U | 1996-04-22 | ||
PCT/DE1997/000824 WO1997040507A1 (de) | 1996-04-22 | 1997-04-22 | Unterbrechereinheit eines hochspannungs-leistungsschalters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0895643A1 EP0895643A1 (de) | 1999-02-10 |
EP0895643B1 true EP0895643B1 (de) | 1999-09-15 |
Family
ID=8023224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97923755A Expired - Lifetime EP0895643B1 (de) | 1996-04-22 | 1997-04-22 | Unterbrechereinheit eines hochspannungs-leistungsschalters |
Country Status (5)
Country | Link |
---|---|
US (1) | US6040970A (de) |
EP (1) | EP0895643B1 (de) |
JP (1) | JP3650129B2 (de) |
DE (2) | DE29607660U1 (de) |
WO (1) | WO1997040507A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745550A1 (de) * | 1997-10-10 | 1999-04-15 | Siemens Ag | Druckgasleistungsschalter |
DE29803232U1 (de) * | 1998-02-18 | 1998-04-16 | Siemens Ag | Hochspannungsleistungsschalter mit einem Isolierstoffkörper |
DE29803380U1 (de) * | 1998-02-20 | 1998-04-23 | Siemens AG, 80333 München | Hochspannungsleistungsschalter mit einem Isolierstoffkörper |
DE19928080C5 (de) * | 1999-06-11 | 2006-11-16 | Siemens Ag | Hochspannungsleistungsschalter mit einem Abströmkanal |
FR2809531B1 (fr) * | 2000-05-25 | 2002-07-05 | Alstom | Buse isolante de soufflage pour disjoncteur |
EP1675144A1 (de) * | 2004-12-23 | 2006-06-28 | ABB Technology AG | Hochleistungsschalter mit abbrandfester Kurzschlusstromführung |
ATE418152T1 (de) * | 2006-01-31 | 2009-01-15 | Abb Technology Ag | Schaltkammer für einen gasisolierten hochspannungsschalter |
DE102006034742A1 (de) * | 2006-07-24 | 2008-01-31 | Siemens Ag | Isolierstoffdüse, welche ein erstes Material und ein zweites Material aufweist |
DE102009009451A1 (de) | 2009-02-13 | 2010-08-19 | Siemens Aktiengesellschaft | Schaltgeräteanordnung mit einer Schaltstrecke |
JP5242461B2 (ja) * | 2009-03-06 | 2013-07-24 | 株式会社東芝 | ガス遮断器 |
DE102012202408A1 (de) * | 2012-02-16 | 2013-08-22 | Siemens Aktiengesellschaft | Schaltgeräteanordnung |
TW201442051A (zh) * | 2013-03-08 | 2014-11-01 | Hitachi Ltd | 氣體斷路器 |
DE102015205388A1 (de) | 2015-03-25 | 2016-09-29 | Siemens Aktiengesellschaft | Isolierdüse und elektrische Schalteinrichtung mit der Isolierdüse |
KR101697584B1 (ko) * | 2015-04-09 | 2017-01-18 | 엘에스산전 주식회사 | 초고압 차단기의 노즐 구조 |
FR3053524B1 (fr) * | 2016-06-29 | 2018-08-10 | General Electric Technology Gmbh | Buse a soufflage d'arc electrique et disjoncteur comprenant une telle buse |
WO2018015436A1 (en) * | 2016-07-21 | 2018-01-25 | Abb Schweiz Ag | Gas-insulated high-voltage switching device with improved main nozzle |
EP3618088A1 (de) * | 2018-08-30 | 2020-03-04 | ABB Schweiz AG | Düse für hoch- oder mittelspannungsschalter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2208035C3 (de) * | 1972-02-17 | 1979-07-26 | Siemens Ag, 000 Berlin Und 8000 Muenchen | Kontaktsystem für Druckgasschalter |
FR2491675A1 (fr) * | 1980-10-07 | 1982-04-09 | Alsthom Atlantique | Dispositif de coupure a double mouvement des contacts |
DE3822410C1 (en) * | 1988-07-01 | 1989-10-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | Sulphur hexa:fluoride compressed gas switch - has thread between nozzle and cylinder to better withstand force and temp. loading without enlargement of actual mass of nozzle |
DE19519992C2 (de) * | 1995-05-24 | 2002-03-21 | Siemens Ag | Schaltstrecke für einen mit einem Löschgas arbeitenden Hochspannungs-Leistungsschalter |
-
1996
- 1996-04-22 DE DE29607660U patent/DE29607660U1/de not_active Expired - Lifetime
-
1997
- 1997-04-22 DE DE59700450T patent/DE59700450D1/de not_active Expired - Lifetime
- 1997-04-22 WO PCT/DE1997/000824 patent/WO1997040507A1/de active IP Right Grant
- 1997-04-22 EP EP97923755A patent/EP0895643B1/de not_active Expired - Lifetime
- 1997-04-22 US US09/171,684 patent/US6040970A/en not_active Expired - Fee Related
- 1997-04-22 JP JP53760297A patent/JP3650129B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE29607660U1 (de) | 1996-06-20 |
US6040970A (en) | 2000-03-21 |
JP3650129B2 (ja) | 2005-05-18 |
DE59700450D1 (de) | 1999-10-21 |
JP2000509544A (ja) | 2000-07-25 |
WO1997040507A1 (de) | 1997-10-30 |
EP0895643A1 (de) | 1999-02-10 |
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