EP0763250B1 - Compressed-gas circuit breaker with a nozzle made of insulating material - Google Patents
Compressed-gas circuit breaker with a nozzle made of insulating material Download PDFInfo
- Publication number
- EP0763250B1 EP0763250B1 EP95917902A EP95917902A EP0763250B1 EP 0763250 B1 EP0763250 B1 EP 0763250B1 EP 95917902 A EP95917902 A EP 95917902A EP 95917902 A EP95917902 A EP 95917902A EP 0763250 B1 EP0763250 B1 EP 0763250B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- insulating material
- nozzle
- synthetic resin
- compressed gas
- 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
- 239000011810 insulating material Substances 0.000 title claims abstract 9
- 229920003002 synthetic resin Polymers 0.000 claims 9
- 239000000057 synthetic resin Substances 0.000 claims 9
- 238000005470 impregnation Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
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
- H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
-
- 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 invention relates to a compressed gas circuit breaker, especially for high voltage, with two each other coaxially opposed contact pieces, at least of which one can be driven in the axial direction, and which in Switch off state limit a switching distance and with a surrounding at least part of the switching path, with the drivable contact piece connected insulating nozzle.
- Such a compressed gas circuit breaker is for example known from U.S. Patent 4,163,131.
- the invention is therefore based on the object of a high-voltage circuit breaker of the type mentioned above train that damage to the insulating nozzle avoided and at the same time the highest possible switching speed is ensured.
- the object is achieved by an on the outside Extent of the insulating material nozzle exposed to the extinguishing gas pressure Area coaxial to this, high-strength Plastic pipe.
- the tube according to the invention stabilizes the insulating material nozzle against radial expansion due to pressure loads through the expanding extinguishing gas.
- the high strength Plastic pipe does not have to be made of the same material, like the insulating nozzle, since it doesn't come in with the arc Comes into contact and no extinguishing gas under the influence of Arcing should release. It can also be a more expensive material be chosen as for the insulating nozzle, since that Plastic pipe only mechanical stabilization tasks has and can be built accordingly small.
- the plastic tube need only be so large that it is the insulating nozzle in the areas of particularly thin walls.
- the plastic tube can also be on the outer circumference of the nozzle body be integrated into these so that there is as little as possible protrudes beyond the outer contour of the nozzle. This increases the dielectric strength.
- plastic tube consists of a fiber-reinforced plastic.
- Such a fiber-reinforced plastic tube has a special high mechanical stability, especially against expansion on.
- Aramid fibers, Glass fibers or plastic fibers can be provided.
- the reinforcing fibers run in the circumferential direction of the plastic tube.
- the invention can also be advantageously configured in this way be that the plastic tube in an area of the insulating nozzle with reduced wall thickness compared to other areas is arranged.
- the plastic tube can also advantageously on the insulating nozzle be glued on.
- the plastic tube can also be advantageously on the insulating nozzle to be shrunk.
- a further advantageous embodiment of the invention provides before that the insulating material nozzle radially through the plastic tube is biased inside.
- the insulating material nozzle then holds higher pressure loads in it inner particularly well, since only at an elevated Pressure load the preload is released and a neutral Shape of the insulating nozzle is achieved. This keeps the insulating material nozzle withstood particularly high extinguishing gas pressures.
- the plastic tube by applying a fiber fabric to the insulating material nozzle and then soaking with a soaking resin is made.
- the plastic tube mentioned can be particularly easy to manufacture and at the same time fixed with the insulating nozzle connect.
- the figure shows schematically an insulating nozzle circuit breaker in a longitudinal section.
- the figure shows a high-voltage circuit breaker with two coaxially opposed contact pieces 1, 2, of which the second contact piece 2 can be driven in a manner not shown.
- the circuit breaker is shown in the open state. In the region of the switching path 3 between the contact pieces 1, 2, an arc is drawn during the switch-off process, which heats up extinguishing gas, in particular SF 6, and thus increases the extinguishing gas pressure.
- the insulating material nozzle 4 With the movable contact piece 2, the insulating material nozzle 4 firmly connected so that they are with this when switching off emotional.
- the insulating material nozzle 4 delimits in the area of the switching path an arc room inside, creating a storage hot and high-pressure extinguishing gas takes place, then later when the current to be switched Current flows back into the area of the arc and extinguishing the arc or dielectric Solidification of the switching path 3 contributes.
- This extinguishing effect is further compressed by additional Supports extinguishing gas in the compression chamber 5 through the Switching movement between a compression cylinder 6 and one Compression piston 7 is provided.
- the mechanical compressed extinguishing gas can then via the channel 8 to Flow switching path 3.
- the insulating material nozzle 4 can advantageously be made of PTFE (Polytetrafluoillerhylen) be made because this substance under the action of an arc releases gases that the Support arc extinction.
- PTFE Polytetrafluoillerhylen
- the insulating material nozzle 4 carries a plastic tube on its outside 9 made of a fiber-reinforced plastic the insulating material nozzle is glued on.
- the plastic tube 9 extends over the area of the insulating nozzle 4, in which this is particularly thin-walled.
Landscapes
- Circuit Breakers (AREA)
- Cable Accessories (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Druckgas-Leistungsschalter, insbesondere für Hochspannung, mit zwei einander koaxial gegenüberstehenden Schaltstücken, von denen wenigstens eines in axialer Richtung antreibbar ist, und die im Ausschaltzustand eine Schaltstrecke begrenzen und mit einer wenigstens einen Teil der Schaltstrecke umgebenden, mit dem antreibbaren Schaltstück verbundenen Isolierstoffdüse.The invention relates to a compressed gas circuit breaker, especially for high voltage, with two each other coaxially opposed contact pieces, at least of which one can be driven in the axial direction, and which in Switch off state limit a switching distance and with a surrounding at least part of the switching path, with the drivable contact piece connected insulating nozzle.
Ein derartiger Druckgas-Leistungsschalter ist beispielsweise aus dem US-Patent 4,163,131 bekannt.Such a compressed gas circuit breaker is for example known from U.S. Patent 4,163,131.
Bei einem solchen Isolierstoffdüsenschalter ergibt sich nach der Trennung der Schaltstücke und dem Zünden eines Lichtbogens infolge der Aufheizung eines Löschgases im Bereich der Schaltstrecke ein starker Druckanstieg, der mittels der Düse dazu benutzt wird, während des Stromnulldurchgangs eine Beblasung des Lichtbogens und somit eine Unterstützung des Löschvorgangs zu erreichen.With such an insulating nozzle switch, the following results the separation of the contact pieces and the ignition of an arc due to the heating of an extinguishing gas in the area of Switching distance a strong pressure increase, which is caused by the nozzle a blower is used for this during the current zero crossing of the arc and thus a support to the To achieve deletion.
Bei der zunehmenden Leistungsfähigkeit solcher Hochspannungs-Leistungsschalter wird der Löschgasdruck im Bereich der Isolierstoffdüse so stark, daß die Gefahr einer Aufweitung des Düsenkörpers besteht. Dem kann nicht ohne weiteres dadurch entgegengewirkt werden, daß die Düse aus einem stabileren Material oder mit größerer Wandstärke hergestellt wird, da einerseits das Düsenmaterial selbst bei der Einwirkung des Lichtbogens Löschgas freisetzen soll und andererseits die Löschgasdüse mit dem antreibbaren Schaltstück zumindest beim Ausschalten möglichst schnell bewegbar, d. h. massearm sein soll. With the increasing performance of such high-voltage circuit breakers the extinguishing gas pressure in the area of the insulating material nozzle so strong that the danger of an expansion of the Nozzle body exists. This cannot be done easily counteracted that the nozzle made of a more stable material or is produced with a larger wall thickness, because on the one hand the nozzle material itself when exposed to the Arc should release extinguishing gas and on the other hand the Extinguishing gas nozzle with the drivable switching piece at least when Switch off as quickly as possible, d. H. be low in mass should.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Hochspannungs-Leistungsschalter der eingangs genannten Art so auszubilden, daß eine Beschädigung der Isolierstoffdüse vermieden und dabei eine dennoch möglichst große Schaltgeschwindigkeit sichergestellt wird.The invention is therefore based on the object of a high-voltage circuit breaker of the type mentioned above train that damage to the insulating nozzle avoided and at the same time the highest possible switching speed is ensured.
Die Aufgabe wird erfindungsgemaß gelöst durch ein am äußeren Umfang der Isolierstoffdüse in deren dem Löschgasdruck ausgesetzten Bereich koaxial zu dieser anliegendes, hochfestes Kunststoffrohr.The object is achieved by an on the outside Extent of the insulating material nozzle exposed to the extinguishing gas pressure Area coaxial to this, high-strength Plastic pipe.
Aus dem US-Patent 4,786,770 ist ein Isolierstoffdüsenschalter bekannt, bei dem die Isolierstoffdüse von einem magnetischen Ring umgeben ist, der zu dem Zweck vorgesehen ist, ein Magnetfeld zu erzeugen, das den Lichtbogen verlängert oder rotieren läßt. Ein solcher Ring ist schwer und dementsprechend schwierig zu beschleunigen. Bei dem vorbekannten Schalter bringt dies keinen Nachteil, da die Isolierstoffdüse nicht mit dem antreibbaren Schaltstück verbunden ist. Der Ring ist dort auch nicht zur mechanischen Stabilisierung der Isolierstoffdüse vorgesehen, sondern nur aus magnetischen Gründen.From U.S. Patent 4,786,770 is an isolator nozzle switch known in which the insulating nozzle by a magnetic Ring is surrounded, which is provided for the purpose of a magnetic field to generate that extend or rotate the arc leaves. Such a ring is heavy and accordingly difficult to accelerate. With the previously known switch this does not bring any disadvantage since the insulating material nozzle does not is connected to the drivable switching piece. The ring is there also not for mechanical stabilization of the insulating material nozzle provided, but only for magnetic reasons.
Das erfindungsgemäße Rohr stabilisiert dagegen die Isolierstoffdüse gegen radiale Aufweitungen infolge der Druckbelastungen durch das expandierende Löschgas. Das hochfeste Kunststoffrohr muß nicht aus demselben Werkstoff bestehen, wie die Isolierstoffdüse, da es mit dem Lichtbogen nicht in Berührung kommt und auch kein Löschgas unter dem Einfluß des Lichtbogens freisetzen soll. Außerdem kann ein teurerer Werkstoff gewählt werden als für die Isolierstoffdüse, da das Kunststoffrohr lediglich mechanische Stabilisierungsaufgaben hat und dementsprechend klein gebaut werden kann. Das Kunststoffrohr braucht nur so groß zu sein, daß es die Isolierstoffdüse in den Bereichen besonders geringer Wandstärke abstützt. In contrast, the tube according to the invention stabilizes the insulating material nozzle against radial expansion due to pressure loads through the expanding extinguishing gas. The high strength Plastic pipe does not have to be made of the same material, like the insulating nozzle, since it doesn't come in with the arc Comes into contact and no extinguishing gas under the influence of Arcing should release. It can also be a more expensive material be chosen as for the insulating nozzle, since that Plastic pipe only mechanical stabilization tasks has and can be built accordingly small. The plastic tube need only be so large that it is the insulating nozzle in the areas of particularly thin walls.
Das Kunststoffrohr kann auch am äußeren Umfang des Düsenkörpers in diesen integriert sein, so daß es möglichst wenig über die Außenkontur der Düse vorsteht. Dies erhöht die dielektrische Festigkeit.The plastic tube can also be on the outer circumference of the nozzle body be integrated into these so that there is as little as possible protrudes beyond the outer contour of the nozzle. This increases the dielectric strength.
Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, daß das Kunststoffrohr aus einem faserverstärktem Kunststoff besteht.An advantageous embodiment of the invention provides that the plastic tube consists of a fiber-reinforced plastic.
Ein solches faserverstärktes Kunststoffrohr weist eine besonders hohe mechanische Stabilität, insbesondere gegen Aufweitung auf. Als Verstärkungsfasern können dabei Aramidfasern, Glasfasern oder Kunststoffasern vorgesehen sein.Such a fiber-reinforced plastic tube has a special high mechanical stability, especially against expansion on. Aramid fibers, Glass fibers or plastic fibers can be provided.
Es kann außerdem vorteilhaft vorgesehen sein, daß die Verstärkungsfasern in Umfangsrichtung des Kunststoffrohres verlaufen.It can also be advantageously provided that the reinforcing fibers run in the circumferential direction of the plastic tube.
In diesem Fall ist die Verstärkungswirkung gegen eine radiale Aufweitung des Kunststoffrohres besonders effektiv.In this case the reinforcing effect is against a radial one Expansion of the plastic pipe particularly effective.
Die Erfindung kann außerdem vorteilhaft dadurch ausgestaltet sein, daß das Kunststoffrohr in einem Bereich der Isolierstoffdüse mit gegenüber anderen Bereichen verringerter Wandstärke angeordnet ist.The invention can also be advantageously configured in this way be that the plastic tube in an area of the insulating nozzle with reduced wall thickness compared to other areas is arranged.
In diesem Bereich ist eine Stabilisierung der Isolierstoffdüse besonders effizient, während sie in anderen Bereich, in denen die Wandstärke der Isolierstoffdüse schon wegen aus strömungstechnischen Gründen vorgeseher Verdickungen größer ist, nicht notwendig erscheint.In this area there is a stabilization of the insulating material nozzle particularly efficient while in other area, in because of the wall thickness of the insulating material nozzle fluidic reasons provided thickening larger is not necessary.
Das Kunststoffrohr kann außerdem vorteilhaft auf die Isolierstoffdüse aufgeklebt sein. The plastic tube can also advantageously on the insulating nozzle be glued on.
Hierdurch ergibt sich eine feste und spaltfreie Verbindung zwischen der Isolierstoffdüse und dem Kunststoffrohr, die außer einer erhöhten dielektrischen Sicherheit dafür sorgt, daß auch bei unterschiedlicher thermischer Dehnung oder durch die dauernden Erschütterungen bei Schaltvorgängen das Kunststoffrohr in seiner Position auf der Isolierstoffdüse bleibt. Das Kunststoffrohr kann auch vorteilhaft auf die Isolierstoffdüse aufgeschrumpft sein.This results in a firm and gap-free connection between the insulating material nozzle and the plastic tube, the in addition to increased dielectric safety, that even with different thermal expansion or through the constant shocks during switching operations the plastic pipe stays in place on the insulating nozzle. The plastic tube can also be advantageously on the insulating nozzle to be shrunk.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, daß die Isolierstoffdüse durch das Kunststoffrohr radial nach innen vorgespannt ist.A further advantageous embodiment of the invention provides before that the insulating material nozzle radially through the plastic tube is biased inside.
Die Isolierstoffdüse hält dann höhere Druckbelastungen in ihrem inneren besonders gut aus, da erst bei einer erhöhten Druckbelastung die Vorspannung aufgehoben wird und eine neutrale Form der Isolierstoffdüse erreicht wird. Dadurch hält die Isolierstoffdüse besonders hohen Löschgasdrucken stand.The insulating material nozzle then holds higher pressure loads in it inner particularly well, since only at an elevated Pressure load the preload is released and a neutral Shape of the insulating nozzle is achieved. This keeps the insulating material nozzle withstood particularly high extinguishing gas pressures.
Es kann außerdem vorteilhaft vorgesehen sein, daß das Kunststoffrohr durch Aufbringen eines Fasergewebes auf die Isolierstoffdüse und anschließendes Tränken mit einem Tränkharz hergestellt ist.It can also be advantageously provided that the plastic tube by applying a fiber fabric to the insulating material nozzle and then soaking with a soaking resin is made.
Auf diese Weise läßt sich das genannte Kunststoffrohr besonders einfach herstellen und gleichzeitig fest mit der Isolierstoffdüse verbinden.In this way, the plastic tube mentioned can be particularly easy to manufacture and at the same time fixed with the insulating nozzle connect.
Im folgenden wir die Erfindung anhand eines Ausführungsbeispiels in einer Zeichnung gezeigt und anschließend beschrieben.In the following we the invention using an exemplary embodiment shown in a drawing and then described.
Dabei zeigt die Figur schematisch einen Isolierstoffdüsen-Leistungsschalter in einem Längsschnitt. The figure shows schematically an insulating nozzle circuit breaker in a longitudinal section.
Die Figur zeigt einen Hochspannungs-Leistungsschalter mit
zwei koaxial einander gegenüberstehenden Schaltstücken 1, 2,
von denen das zweite Schaltstück 2 auf nicht dargestellte
Weise antreibbar ist. Der Leistungsschalter ist im Ausschaltzustand
dargestellt. Im Bereich der Schaltstrecke 3
zwischen den Schaltstücken 1, 2 wird während des Ausschaltvorgangs
ein Lichtbogen gezogen, der dort vorhandenes
Löschgas, insbesondere SF6 aufheizt und somit den Löschgasdruck
erhöht.The figure shows a high-voltage circuit breaker with two coaxially
Mit dem beweglichen Schaltstück 2 ist die Isolierstoffdüse 4
fest verbunden, so daß sie sich mit diesem beim Ausschaltvorgang
bewegt.With the
Im Bereich der Schaltstrecke begrenzt die Isolierstoffdüse 4
in ihren Inneren einen Lichtbogenraum, wodurch eine Speicherung
heißen und unter hohem Druck stehenden Löschgases stattfindet,
das dann später beim Stromnulldurchgang des zu schaltenden
Stromes in den Bereich des Lichtbogens zurückströmt
und zu einer Löschung des Lichtbogens bzw. einer dielektrischen
Verfestigung der Schaltstrecke 3 beiträgt.The insulating material nozzle 4 delimits in the area of the switching path
an arc room inside, creating a storage
hot and high-pressure extinguishing gas takes place,
then later when the current to be switched
Current flows back into the area of the arc
and extinguishing the arc or dielectric
Solidification of the
Diese Löschwirkung wird noch durch zusätzliches komprimiertes
Löschgas unterstützt, das im Kompressionsraum 5 durch die
Schaltbewegung zwischen einem Kompressionszylinder 6 und einem
Kompressionskolben 7 zur Verfügung gestellt wird. Das mechanisch
komprimierte Löschgas kann dann über den Kanal 8 zur
Schaltstrecke 3 hinströmen.This extinguishing effect is further compressed by additional
Supports extinguishing gas in the
Die Isolierstoffdüse 4 kann vorteilhaft aus PTFE (Polytetrafluoräthylen) hergestellt sein, da dieser Stoff unter der Einwirkung eines Lichtbogens Gase freisetzt, die die Löschung des Lichtbogens unterstützen.The insulating material nozzle 4 can advantageously be made of PTFE (Polytetrafluoräthylen) be made because this substance under the action of an arc releases gases that the Support arc extinction.
Die Isolierstoffdüse 4 trägt auf ihrer Außenseite ein Kunststoffrohr
9 aus einem faserverstärkten Kunststoff, das auf
die Isolierstoffdüse aufgeklebt ist. Das Kunststoffrohr 9 erstreckt
sich über den Bereich der Isolierstoffdüse 4, in dem
diese besonders dünnwandig ausgebildet ist.The insulating material nozzle 4 carries a plastic tube on its outside
9 made of a fiber-reinforced plastic
the insulating material nozzle is glued on. The
Hierdurch wird eine radiale Aufweitung der Isolierstoffdüse durch einen überhöhten Löschgasdruck, beispielsweise infolge einer großen zu schaltenden Stromstärke vermieden.This causes a radial expansion of the insulating material nozzle due to an excessive extinguishing gas pressure, for example as a result a large current to be switched avoided.
Claims (8)
- A compressed gas blast circuit breaker switch, in particular for high voltage, with two contact members (1, 2) which are arranged coaxially opposite one another and of which at least one can be driven in the axial direction and which in the breaking state delimit a contact gap (3), and with a nozzle (4) made of insulating material which surrounds at least a part of the contact gap (3) and is connected to the driveable contact member, characterised by a high-strength synthetic resin pipe (9) which abuts against the outer periphery of the insulating material nozzle (4), coaxially therewith, in the region of said nozzle exposed to the extinguishing gas pressure.
- A compressed gas blast circuit breaker switch according to Claim 1, characterised in that the synthetic resin pipe (9) consists of a fibre-reinforced synthetic resin.
- A compressed gas blast circuit breaker switch according to Claim 2, characterised in that the reinforcing fibres extend in the peripheral direction of the synthetic resin pipe (9).
- A compressed gas blast circuit breaker switch according to Claim 1 or one of the following claims, characterised in that the synthetic resin pipe (9) is arranged in a region of the insulating material nozzle (4) having a reduced wall thickness in relation to other regions.
- A compressed gas blast circuit breaker switch according to Claim 1 or one of the following claims, characterised in that the synthetic resin pipe (9) is adhesively bonded onto the insulating material nozzle (4).
- A compressed gas blast circuit breaker switch according to Claim 1 or one of the following claims, characterised in that the synthetic resin pipe (9) is shrunk onto the insulating material nozzle (4).
- A compressed gas blast circuit breaker switch according to Claim 1 or one of the following claims, characterised in that the insulating material nozzle (4) is radially inwardly biased by the synthetic resin pipe (9) .
- A compressed gas blast circuit breaker switch according to Claim 1 or one of the following claims, characterised in that the synthetic resin pipe (9) is produced by the application of a fibrous tissue to the insulating material nozzle (4) and subsequent impregnation with an impregnating resin.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4420386 | 1994-05-31 | ||
| DE4420386A DE4420386C2 (en) | 1994-05-31 | 1994-05-31 | Pressurized gas circuit breaker with an insulating nozzle |
| PCT/DE1995/000631 WO1995033274A1 (en) | 1994-05-31 | 1995-05-08 | Compressed-gas circuit breaker with a nozzle made of insulating material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0763250A1 EP0763250A1 (en) | 1997-03-19 |
| EP0763250B1 true EP0763250B1 (en) | 1998-01-07 |
Family
ID=6520325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95917902A Expired - Lifetime EP0763250B1 (en) | 1994-05-31 | 1995-05-08 | Compressed-gas circuit breaker with a nozzle made of insulating material |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5739495A (en) |
| EP (1) | EP0763250B1 (en) |
| CN (1) | CN1068965C (en) |
| AT (1) | ATE162007T1 (en) |
| BR (1) | BR9507792A (en) |
| CA (1) | CA2191590A1 (en) |
| DE (2) | DE4420386C2 (en) |
| ES (1) | ES2113199T3 (en) |
| WO (1) | WO1995033274A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11515110B2 (en) | 2018-08-30 | 2022-11-29 | Hitachi Energy Switzerland Ag | Nozzle for high or medium voltage circuit breaker |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29812361U1 (en) | 1998-07-03 | 1998-09-17 | Siemens AG, 80333 München | High voltage switch |
| EP2223308A1 (en) * | 2007-12-21 | 2010-09-01 | ABB Research Ltd. | Weakly conducting nozzle for a gas circuit breaker and ptfe based material therefore |
| DE112013002015T5 (en) * | 2012-04-11 | 2015-04-23 | Abb Technology Ag | breakers |
| WO2016013022A1 (en) | 2014-07-22 | 2016-01-28 | Bharat Heavy Electricals Limited | Interrupter device with relative dual motion contact system |
| WO2018015436A1 (en) * | 2016-07-21 | 2018-01-25 | Abb Schweiz Ag | Gas-insulated high-voltage switching device with improved main nozzle |
| DE102018211621A1 (en) * | 2018-07-12 | 2020-01-16 | Siemens Aktiengesellschaft | Gas-insulated switch |
| EP4187567B1 (en) | 2021-11-24 | 2024-06-12 | General Electric Technology GmbH | An electric arc-blast nozzle with improved mechanical strength and a circuit breaker including such a nozzle |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE733282C (en) * | 1939-09-08 | 1943-03-23 | Aeg | Loeschdüse for gas pressure switch |
| DE2209287C3 (en) * | 1972-02-22 | 1974-12-12 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electric pressure gas switch |
| JPS5732451B2 (en) * | 1974-01-16 | 1982-07-10 | ||
| US4163131A (en) * | 1977-08-11 | 1979-07-31 | Westinghouse Electric Corp. | Dual-compression gas-blast puffer-type interrupting device |
| DE3233004A1 (en) * | 1982-09-04 | 1984-03-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Nozzle for an auto-pneumatic compressed-gas circuit breaker |
| EP0483121B1 (en) * | 1986-06-06 | 1994-09-07 | Mitsubishi Denki Kabushiki Kaisha | Switchgear |
| 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 |
| DE69113349T2 (en) * | 1990-07-27 | 1996-05-15 | Hitachi Ltd | Gas-insulated switch with self-blowing. |
| JPH0495322A (en) * | 1990-08-03 | 1992-03-27 | Hitachi Ltd | Gas blast circuit breaker |
| DE4111932A1 (en) * | 1991-04-12 | 1992-10-15 | Asea Brown Boveri | Nozzle in gas blast circuit breaker - has neck with alternating fluoro:polymer and boron nitride-filled fluoro:polymer layers in outer sleeve and at right angles to breaker axis |
-
1994
- 1994-05-31 DE DE4420386A patent/DE4420386C2/en not_active Expired - Fee Related
-
1995
- 1995-05-08 BR BR9507792A patent/BR9507792A/en not_active IP Right Cessation
- 1995-05-08 WO PCT/DE1995/000631 patent/WO1995033274A1/en active IP Right Grant
- 1995-05-08 US US08/737,910 patent/US5739495A/en not_active Expired - Lifetime
- 1995-05-08 ES ES95917902T patent/ES2113199T3/en not_active Expired - Lifetime
- 1995-05-08 DE DE59501227T patent/DE59501227D1/en not_active Expired - Lifetime
- 1995-05-08 CA CA002191590A patent/CA2191590A1/en not_active Abandoned
- 1995-05-08 CN CN95192958A patent/CN1068965C/en not_active Expired - Lifetime
- 1995-05-08 EP EP95917902A patent/EP0763250B1/en not_active Expired - Lifetime
- 1995-05-08 AT AT95917902T patent/ATE162007T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11515110B2 (en) | 2018-08-30 | 2022-11-29 | Hitachi Energy Switzerland Ag | Nozzle for high or medium voltage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995033274A1 (en) | 1995-12-07 |
| US5739495A (en) | 1998-04-14 |
| CN1147878A (en) | 1997-04-16 |
| DE59501227D1 (en) | 1998-02-12 |
| DE4420386A1 (en) | 1995-12-07 |
| EP0763250A1 (en) | 1997-03-19 |
| DE4420386C2 (en) | 1998-07-02 |
| ATE162007T1 (en) | 1998-01-15 |
| ES2113199T3 (en) | 1998-04-16 |
| CN1068965C (en) | 2001-07-25 |
| CA2191590A1 (en) | 1995-12-07 |
| BR9507792A (en) | 1997-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0763250B1 (en) | Compressed-gas circuit breaker with a nozzle made of insulating material | |
| DE2215656B2 (en) | Electric pressure gas switch | |
| DE3915700C2 (en) | ||
| DE2316009A1 (en) | ARRANGEMENT FOR EXTINGUISHING AN ARC | |
| DE19547522C1 (en) | HV line circuit breaker with gas-storage space - has gas-storage space divided by partition into heating space and cold gas space | |
| DE7614806U1 (en) | Electric compression switch | |
| CH648153A5 (en) | EXHAUST GAS SWITCH. | |
| DE2404721A1 (en) | Cct breaker with closed quenching chamber system - has insulating partition dividing chamber into two nozzle connected compartments | |
| DE4010007A1 (en) | COMPRESSED GAS CIRCUIT BREAKER WITH DRIVE COMPRESSION PISTON | |
| EP0025833B1 (en) | Gas blast switch | |
| DE29609909U1 (en) | High-voltage circuit breaker with an insulating nozzle | |
| DE2924994A1 (en) | CIRCUIT BREAKER | |
| DE2847808C2 (en) | Contact arrangement for pressure gas switch | |
| EP0221838B1 (en) | Compressed-gas circuit breaker | |
| DE4015179C2 (en) | Gas pressure switch | |
| DE2759265C3 (en) | Gas switch | |
| DE2911633C2 (en) | Auto-pneumatic pressure gas switch | |
| DE2361687A1 (en) | ELECTRIC GAS SWITCH | |
| DE4304741C2 (en) | High voltage circuit breakers | |
| DE29618708U1 (en) | Pressurized gas circuit breaker | |
| DE3201646A1 (en) | Controllable pulse-compression device for high-voltage compressed-gas switching chambers | |
| DE3041083A1 (en) | Contact assembly for switch filled with pressurised gas - has bore of stationary contacts coated with graphite to minimise erosion during arcing at switch=off | |
| DE3234971C2 (en) | Electrical switching chamber with precompression of the arc extinguishing gas for a pressure gas switch | |
| DE19524637C2 (en) | Gas pressure switch | |
| CH607658A5 (en) | Gas-blast circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19961127 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB IT LI NL SE |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| 17Q | First examination report despatched |
Effective date: 19970604 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IT LI NL SE |
|
| REF | Corresponds to: |
Ref document number: 162007 Country of ref document: AT Date of ref document: 19980115 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 59501227 Country of ref document: DE Date of ref document: 19980212 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG |
|
| ITF | It: translation for a ep patent filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2113199 Country of ref document: ES Kind code of ref document: T3 |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980408 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20010411 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20010523 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20010608 Year of fee payment: 7 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020508 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020509 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20020514 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020531 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20030508 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031201 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20031201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040508 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030611 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20040508 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: SIEMENS SCHWEIZ AG;INTELLECTUAL PROPERTY FREILAGERSTRASSE 40;8047 ZUERICH (CH) |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20110530 Year of fee payment: 17 Ref country code: SE Payment date: 20110510 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20110525 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110809 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110718 Year of fee payment: 17 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120509 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120508 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20130131 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59501227 Country of ref document: DE Effective date: 20121201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121201 |