EP0830700B1 - Insulating component for high-voltage equipment - Google Patents
Insulating component for high-voltage equipment Download PDFInfo
- Publication number
- EP0830700B1 EP0830700B1 EP96919580A EP96919580A EP0830700B1 EP 0830700 B1 EP0830700 B1 EP 0830700B1 EP 96919580 A EP96919580 A EP 96919580A EP 96919580 A EP96919580 A EP 96919580A EP 0830700 B1 EP0830700 B1 EP 0830700B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulating component
- grooves
- ridges
- component
- component according
- 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
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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
- H01H33/7015—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
- H01H33/703—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 having special gas flow directing elements, e.g. grooves, extensions
-
- 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
- H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties
Definitions
- the invention relates to an insulating component of a High-voltage switching device, in particular for use in gas-insulated systems, see for example EP-A-0 191 465.
- Such a component is also from the DE-PS 26 26 855 known.
- Such insulating material components are used, for example, in electrical High-voltage switches, especially in high-voltage circuit breakers as a spacer or as a nozzle for guidance of insulating gas.
- Such components are used in encapsulated high-voltage switchgear for example as a support for busbars or used as bushings.
- the surface area of the component a weakly conductive fabric for derivation embedded by surface charges.
- the present invention is based on the object an insulating component of the type mentioned to create the high dielectric with low manufacturing costs Withstands stress permanently.
- the object is achieved in that the Surface of the component at least in a dielectric stressed area with sharp-edged grooves or webs with a profile depth of at least 100 ⁇ m.
- An advantageous embodiment of the invention provides that at least one region that is particularly stressed in terms of dielectric the surface has a profile depth of at least 200 microns.
- the profile depth allows the surface of the component no displacement currents occur, the electrical arcing could initiate.
- An advantageous embodiment of the invention provides that the grooves or webs are produced by machining.
- the component can, for example, after it has been shaped by casting, sintering or extrusion, in which dielectric stressed area by milling or turning can be reworked.
- a depth of the grooves has proven to be particularly advantageous of more than 200 ⁇ m.
- the grooves can advantageously concentric to each other or in the form of a spiral be arranged.
- the grooves or webs can advantageously be rectangular in cross section or be sawtooth-shaped.
- Such a profile is easy to turn or mill.
- the invention also relates to a method for Manufacture of an insulating component for high-voltage devices, in which the component after the formation in at least one dielectric particularly stressed area of its Grooving the surface by machining or is processed so that webs remain.
- the component in a casting process is manufactured, and that the mold in the dielectric particularly stressed area has grooves or webs, the corresponding complementary structures on the Create the surface of the component.
- An insulating component is often included after shaping uniform surface quality before and then after Process according to the invention in the dielectric particularly stressed Areas of its surface to be reworked.
- the figure shows a circuit breaker in the closed state.
- Two arcing contact pieces are coaxial with each other 1, 2 and two continuous current contact pieces 3, 4 opposite, which are in engagement with each other when switched on.
- Electrical connections of the switch are designated 11, 12 and shown only schematically.
- the drivable arcing contact piece 1 is used to switch off as well as with this by means of a compression cylinder 5 connected continuous current contact piece 3 in the figure moved to the left. This is done by a not shown Switch drive.
- the insulating nozzle 9 which consists of PTFE, from the fixed arcing contact 2.
- the insulating material nozzle 9 is with the compression cylinder 5 in the area of continuous current contact 3 connected.
- the end face 10 is the Insulating dielectric dielectric through the electrical field between the arcing contact pieces 1, 2 are particularly stressed.
- essential concentric grooves e.g. by overturning a spiral groove
- Depth of about 1 mm introduced, with a between the grooves about 1 mm wide web with a rectangular cross section is.
- An arrangement according to the invention proves to be dielectric safer than a corresponding one with a production-related component with better surface quality throughout.
- a double nozzle switch is shown in FIG two fixed nozzle-shaped contact pieces 13, 14, the in the on state by a bridging contact piece 15 are conductively connected to each other.
- It is a compression device for an extinguishing gas consisting of a stationary one Compression piston 16 and a movable compression cylinder 17 provided.
- the compression cylinder is in the off state withdrawn so far that its bottom 18 in the separation distance between the fixed contact pieces 13, 14 is located and exposed there to the electric field is.
- the bottom 18 has its in the off state Switching side facing a sawtooth in cross section Structure based on the removal of surface charges enables.
Landscapes
- Circuit Breakers (AREA)
- Insulating Bodies (AREA)
- Insulators (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
Die Erfindung bezieht sich auf ein isolierendes Bauteil eines Hochspannungsschaltgerätes, insbesondere zum Einsatz in gasisolierten Anlagen, siehe zum Beispiel EP-A-0 191 465.The invention relates to an insulating component of a High-voltage switching device, in particular for use in gas-insulated systems, see for example EP-A-0 191 465.
Ein derartiges Bauteil ist auch aus der DE-PS 26 26 855 bekannt.Such a component is also from the DE-PS 26 26 855 known.
Solche Isolierstoffbauteile werden beispielsweise in elektrischen Hochspannungsschaltern, insbesondere in Hochspannungs-Leistungsschaltern als Abstandshalter oder als Düsen zur Führung von Isoliergas eingesetzt.Such insulating material components are used, for example, in electrical High-voltage switches, especially in high-voltage circuit breakers as a spacer or as a nozzle for guidance of insulating gas.
In gekapselten Hochspannungsschaltanlagen werden solche Bauteile beispielsweise als Stützer für Sammelschienenleiter oder als Durchführungen eingesetzt. Sie können beispielsweise aus Gießharz, z. B. einem Epoxidharz bestehen oder aus PTFE oder einer Keramik bzw. Porzellan.Such components are used in encapsulated high-voltage switchgear for example as a support for busbars or used as bushings. For example, you can made of cast resin, e.g. B. consist of an epoxy resin or made of PTFE or a ceramic or porcelain.
Unter hoher dielektrischer Beanspruchung, d, h. bei großen elektrischen Feldstärken, insbesondere dann, wenn die Feldstärke eine Komponente tangential zur Oberfläche des Bauteiles aufweist, besteht eine erhöhte Wahrscheinlichkeit von Verschiebungsströmen an der Oberfläche des Bauteiles, die auch zu elektrischen Überschlägen führen können.Under high dielectric stress, i.e. for large ones electrical field strengths, especially when the field strength a component tangential to the surface of the component has an increased probability of Displacement currents on the surface of the component can also lead to electrical flashovers.
Gemäß dem Stand der Technik wird im Bereich der Oberfläche des Bauteiles ein schwach leitfähiges Gewebe zur Ableitung von Oberflächenladungen eingebettet.According to the prior art, the surface area of the component a weakly conductive fabric for derivation embedded by surface charges.
Dies erhöht naturgemäß die Leitfähigkeit des Bauteiles und stellt andererseits einen hohen Fertigungsaufwand dar. Es werden verschiedene Baumaterialien miteinander verbunden und es besteht die Gefahr, daß ein Teil des Gewebes nicht fest mit dem Bauteil verbunden ist und in einen dielektrisch hoch beanspruchten Bereich des Hochspannungsgerätes hineinragt.This naturally increases the conductivity of the component and on the other hand represents a high manufacturing cost. It different building materials are connected and there is a risk that part of the tissue may not be tight is connected to the component and in a dielectric high area of the high-voltage device protrudes.
Aus der DE-OS 30 47 761 ist es bekannt, in ein Isolierstoffbauteil einen mineralischen Füllstoff einzubetten, dessen partikel an der Oberfläche des Bauteils freiliegen und somit bei Entladungen die Ausbildung von kohlenstoffhaltigen und somit teilweise elektrisch leitfähigen Spuren auf der Oberfläche verhindern. Ein solches Isolierstoffbauteil stellt hohe Anforderungen an die Fertigung.From DE-OS 30 47 761 it is known in an insulating component embed a mineral filler whose particles are exposed on the surface of the component and thus in the event of discharges the formation of carbon and thus partially electrically conductive traces on the surface prevent. Such an insulating component provides high demands on production.
Der vorliegenden Erfindung liegt demgegenüber die Aufgabe zugrunde, ein isolierendes Bauteil der eingangs genannten Art zu schaffen, das bei geringem Fertigungsaufwand hohen dielektrischen Beanspruchungen dauerhaft standhält.The present invention is based on the object an insulating component of the type mentioned to create the high dielectric with low manufacturing costs Withstands stress permanently.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Oberfläche des Bauteils wenigstens in einem dielektrisch besonders beanspruchten Bereich scharfkantige Nuten oder Stege mit einer Profiltiefe von wenigstens 100 um aufweist.The object is achieved in that the Surface of the component at least in a dielectric stressed area with sharp-edged grooves or webs with a profile depth of at least 100 µm.
Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, daß wenigstens ein dielektrisch besonders beanspruchter Bereich der Oberfläche eine Profiltiefe von wenigstens 200 µm aufweist.An advantageous embodiment of the invention provides that at least one region that is particularly stressed in terms of dielectric the surface has a profile depth of at least 200 microns.
Durch die Profiltiefe können an der Oberfläche des Bauteiles keine Verschiebungsströme auftreten, die elektrische Überschläge initiieren könnten.The profile depth allows the surface of the component no displacement currents occur, the electrical arcing could initiate.
In einem Querschnitt des Bauteiles weist dieses im Bereich seiner Oberfläche durch die Oberflächenstruktur scharfkantige Erhebungen oder Ausnehmungen auf. Diese Struktur führt zu einer verbesserten dielektrischen Festigkeit, dadurch daß an den Spitzen und Kanten hohe elektrische Feldstärken entstehen, die zur Emission von Oberflächenladungen führen und somit das Potential von Oberflächenladungen begrenzen.In a cross section of the component, it points in the area its surface by the surface structure sharp-edged Elevations or recesses. This structure leads to improved dielectric strength, in that high electrical field strengths develop at the tips and edges, which lead to the emission of surface charges and thus limit the potential of surface charges.
Es wird zur Erreichung dieses Erfolges kein weiteres Material als dasjenige benötigt, aus dem das Bauteil besteht.No further material is needed to achieve this success than that of which the component consists.
Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, daß die Nuten oder Stege durch spanende Bearbeitung erzeugt sind.An advantageous embodiment of the invention provides that the grooves or webs are produced by machining.
In diesem Fall kann das Bauteil nach seiner Formung beispielsweise durch Gießen, Sintern oder Extrudieren, in dem dielektrisch besonders beanspruchten Bereich durch Fräsen oder Drehen nachbearbeitet werden.In this case, the component can, for example, after it has been shaped by casting, sintering or extrusion, in which dielectric stressed area by milling or turning can be reworked.
Als besonders vorteilhaft erweist sich eine Tiefe der Nuten von mehr als 200 µm.A depth of the grooves has proven to be particularly advantageous of more than 200 µm.
Bei einem rotationssymmetrischen Bauteil können die Nuten vorteilhaft konzentrisch zueinander oder in Form einer Spirale angeordnet sein.In the case of a rotationally symmetrical component, the grooves can advantageously concentric to each other or in the form of a spiral be arranged.
Dies ist insbesondere in dem Fall günstig, in dem es sich bei dem Bauteil um einen Teil einer Isolierstoffdüse für einen Hochspannungs-Leistungsschalter handelt. Da ein solcher Leistungsschalter oft rotationssymmetrisch aufgebaut ist, liegen die Bereiche, die dielektrisch besonders hoch beansprucht sind, ebenfalls rotationssymmetrisch und können durch entsprechende spanende Bearbeitung (Drehen) mit den beschriebenen Nuten versehen werden.This is particularly beneficial in the case where it is the component around part of an insulating nozzle for one High-voltage circuit breakers. Because such a circuit breaker is often rotationally symmetrical the areas that are particularly stressed dielectric are also rotationally symmetrical and can by appropriate machining (turning) with the described Grooves are provided.
Vorteilhaft können die Nuten oder Stege im Querschnitt rechteckig oder sägezahnförmig ausgebildet sein. The grooves or webs can advantageously be rectangular in cross section or be sawtooth-shaped.
Ein solches Profil ist einfach zu drehen oder zu fräsen.Such a profile is easy to turn or mill.
Die Erfindung bezieht sich außerdem auf ein Verfahren zur Herstellung eines isolierenden Bauteiles für Hochspannungsgeräte, bei dem das Bauteil nach der Formung wenigstens in einem dielektrisch besonders beanspruchten Bereich seiner Oberfläche durch spanende Bearbeitung mit Nuten versehen oder so bearbeitet wird, daß Stege stehen bleiben.The invention also relates to a method for Manufacture of an insulating component for high-voltage devices, in which the component after the formation in at least one dielectric particularly stressed area of its Grooving the surface by machining or is processed so that webs remain.
Es ist jedoch auch denkbar, daß das Bauteil in einem Gießverfahren hergestellt wird, und daß die Gußform in dem dielektrisch besonders beanspruchten Bereich Nuten oder Stege aufweist, die entsprechende komplementäre Strukturen an der Oberfläche des Bauteiles erzeugen.However, it is also conceivable that the component in a casting process is manufactured, and that the mold in the dielectric particularly stressed area has grooves or webs, the corresponding complementary structures on the Create the surface of the component.
Oft liegt ein isolierendes Bauteil nach der Formung mit gleichmäßiger Oberflächenqualität vor und kann dann nach dem erfindungsgemäßen Verfahren in den dielektrisch besonders beanspruchten Bereichen seiner Oberfläche nachbearbeitet werden.An insulating component is often included after shaping uniform surface quality before and then after Process according to the invention in the dielectric particularly stressed Areas of its surface to be reworked.
Es ist beispielsweise auch denkbar, daß ein Bereich der Oberfläche mit einem Prägewerkzeug mit Unebenheiten versehen wird.It is also conceivable, for example, that an area of the surface use a stamping tool to provide any unevenness becomes.
Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels in einer Zeichnung gezeigt und anschließend beschrieben.In the following the invention is based on an embodiment shown in a drawing and then described.
Dabei zeigt die
Die Abbildung zeigt einen Leistungsschalter im Einschaltzustand.
Es stehen einander koaxial zwei Lichtbogenkontaktstücke
1, 2 sowie zwei Dauerstromkontaktstücke 3, 4 gegenüber,
die im Einschaltzustand miteinander im Eingriff stehen.
Elektrische Anschlüsse des Schalters sind mit 11, 12 bezeichnet
und nur schematisch dargestellt.The figure shows a circuit breaker in the closed state.
Two arcing contact pieces are coaxial with each other
1, 2 and two continuous
Zum Ausschalten wird das antreibbare Lichtbogenkontaktstück 1
sowie das mit diesem mittels eines Kompressionszylinders 5
verbundene Dauerstromkontaktstück 3 in der Abbildung nach
links bewegt. Dies geschieht durch einen nicht näher dargestellten
Schalterantrieb.The drivable arcing contact piece 1 is used to switch off
as well as with this by means of a
Gleichzeitig wird in einem Kompressionsraum 6 Löschgas komprimiert.At the
Nach der Trennung der beiden Lichtbogenkontaktstücke 1, 2
voneinander entsteht zwischen diesen ein Lichtbogen, der das
Löschgas im Bereich des Lichtbogenraumes 7 aufheizt. Vom
Lichtbogenraum 7 strömt das heiße Löschgas in den Heizraum 8,
wo es für eine nachfolgende Beblasung des Lichtbogens vorübergehend
gespeichert wird.After the separation of the two arcing contact pieces 1, 2
an arc arises between them, which
Extinguishing gas in the area of the arc room 7 is heated. From
Arc room 7, the hot quenching gas flows into the
Nachdem das antreibbare Lichtbogenkontaktstück 1 sich von dem
feststehenden Lichtbogenkontaktstück 2 getrennt hat, läuft
auch die Isolierstoffdüse 9, die aus PTFE besteht, von dem
feststehenden Lichtbogenkontaktstück 2 ab. Die Isolierstoffdüse
9 ist mit dem Kompressionszylinder 5 im Bereich des Dauerstromkontaktes
3 verbunden. After the drivable arcing contact 1 from the
has fixed arc contact 2 separated, runs
also the
Nachdem die Isolierstoffdüse 9 von dem feststehenden Lichtbogenkontaktstück
2 abgelaufen ist, ist die Stirnseite 10 der
Isolierstoffdüse dielektrisch durch das elektrische Feld zwischen
den Lichtbogenkontaktstücken 1, 2 besonders beansprucht.
In diesem Bereich sind durch spanende Bearbeitung im
wesentlichen konzentrische Nuten (beispielsweise durch Überdrehen
der Stirnfläche eine Spiralnut) mit einer Breite und
Tiefe von etwa 1 mm eingebracht, wobei zwischen den Nuten ein
etwa 1 mm breiter Steg mit rechteckigem Querschnitt angeordnet
ist.After the insulating
Eine erfindungsgemäße Anordnung erweist sich als dielektrisch sicherer, als ein entsprechend mit einer fertigungsbedingt durchgehend besseren Oberflächenqualität ausgestattetes Bauteil.An arrangement according to the invention proves to be dielectric safer than a corresponding one with a production-related component with better surface quality throughout.
In der Figur 3 ist ein Doppeldüsenschalter dargestellt mit
zwei feststehenden düsenförmigen Kontaktstücken 13, 14, die
im Einschaltzustand durch ein Überbrückungsschaltstück 15
miteinander leitend verbunden sind. Es ist eine Kompressionsvorrichtung
für ein Löschgas, bestehend aus einem ortsfesten
Kompressionskolben 16 und einem beweglichen Kompressionszylinder
17 vorgesehen. Im Ausschaltzustand ist der Kompressionszylinder
soweit zurückgezogen, daß sein Boden 18 sich in
der Trennstrecke zwischen den feststehenden Konstaktstücken
13, 14 befindet und dort dem elektrischen Feld ausgesetzt
ist. Der Boden 18 weist an seiner im Ausschaltzustand der
Schaltstrecke zugewandten Seite eine im Querschnitt sägezahnförmige
Struktur auf, die ein Abführen von Oberflächenladungen
ermöglicht.A double nozzle switch is shown in FIG
two fixed nozzle-
Claims (9)
- Insulating component (9) of a high-voltage switchgear, in particular for use in gas-insulated installations, characterised by an arrangement for limiting the potential of surface charges, said arrangement comprising on the surface of the component (9), at least in a region (10) that is particularly loaded dielectrically, sharp-edged grooves or ridges with a profile depth of at least 100 µm.
- Insulating component according to Claim 1, characterised in that at least a region (10) of the surface that is particularly loaded dielectrically has a profile depth of at least 200 µm.
- Insulating component according to Claim 1 or 2, characterised in that the grooves or ridges are produced by machining.
- Insulating component according to Claim 1, 2, or 3, characterised in that in the case of a rotationally symmetrical component (9) the grooves are disposed substantially concentrically in relation to one another or in the form of a spiral.
- Insulating component according to one of Claims 1 to 4, characterised in that the grooves or ridges are of rectangular design in cross-section.
- Insulating component according to one of Claims 1 to 4, characterised in that the grooves or ridges are of saw-tooth design in cross-section.
- Insulating component according to one of Claims 1 to 6, characterised in that it consists of PTFE.
- Insulating component according to one of Claims 1 to 7, characterised in that the component is formed by the nozzle body (9) or by the compression cylinder of a high-voltage circuit-breaker, on the front face (10) of which the grooves or ridges are formed.
- Process for manufacturing an insulating component for high-voltage devices according to Claim 1 or one of the following claims, characterised in that after being formed, the component (9) is provided, at least in a region of its surface (10) that is particularly loaded dielectrically, with grooves as a result of machining or is worked in such a way that ridges remain behind.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19519992 | 1995-05-24 | ||
| DE19519992A DE19519992C2 (en) | 1995-05-24 | 1995-05-24 | Switching section for a high-voltage circuit breaker working with an extinguishing gas |
| PCT/DE1996/000911 WO1996037902A1 (en) | 1995-05-24 | 1996-05-15 | Insulating component for high-voltage equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0830700A1 EP0830700A1 (en) | 1998-03-25 |
| EP0830700B1 true EP0830700B1 (en) | 1999-03-24 |
Family
ID=7763346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96919580A Expired - Lifetime EP0830700B1 (en) | 1995-05-24 | 1996-05-15 | Insulating component for high-voltage equipment |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5902980A (en) |
| EP (1) | EP0830700B1 (en) |
| JP (1) | JP3771266B2 (en) |
| CN (1) | CN1068966C (en) |
| CA (1) | CA2221942C (en) |
| DE (2) | DE19519992C2 (en) |
| WO (1) | WO1996037902A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017206748A1 (en) | 2017-04-21 | 2018-10-25 | Siemens Aktiengesellschaft | Double nozzle switch with external contact and method for switching the double jet switch |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29607660U1 (en) * | 1996-04-22 | 1996-06-20 | Siemens Ag | Circuit breaker unit of a high voltage circuit breaker |
| DE19826202C2 (en) | 1998-06-10 | 2000-12-14 | Siemens Ag | Insulating component for high voltage systems and process for its manufacture |
| JP2002135921A (en) * | 2000-10-26 | 2002-05-10 | Mitsubishi Electric Corp | Gas insulated switchgear and its resin molded bushing |
| EP1306954B1 (en) * | 2001-10-29 | 2011-07-27 | ABB Research Ltd. | Insulating spacer with integrated barrier for gas-insulated electrical installation |
| JP4421331B2 (en) * | 2004-02-26 | 2010-02-24 | 株式会社東芝 | Gas circuit breaker |
| JP5127569B2 (en) * | 2008-05-29 | 2013-01-23 | 株式会社東芝 | Gas insulated switch |
| FR2933806B1 (en) * | 2008-07-10 | 2010-09-03 | Areva T & D Sa | ELECTRICAL DEVICE UNDER METAL ENVELOPE WITH REDUCED VOLTAGE GRADIENT. |
| CN101599391B (en) * | 2009-07-13 | 2013-02-27 | 西安森源配电自动化设备有限公司 | Novel single-fracture single-cylinder self energy high pressure sulfur hexafluoride breaker arc extinguish chamber |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1549097A (en) * | 1967-01-03 | 1968-12-06 | ||
| DE2209287C3 (en) * | 1972-02-22 | 1974-12-12 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electric pressure gas switch |
| DE2626855C2 (en) * | 1976-06-11 | 1978-06-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Insulating component for high |
| US4289942A (en) * | 1977-07-29 | 1981-09-15 | Westinghouse Electric Corp. | Gas-blast circuit-interrupter with multiple insulating arc-shield construction |
| US4229627A (en) * | 1978-10-04 | 1980-10-21 | Electric Power Research Institute, Inc. | Gas puffer type current interrupter and method |
| DE3046629C2 (en) * | 1980-12-11 | 1985-04-04 | Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt | Process for the production of insulator surfaces |
| DE3047761C2 (en) * | 1980-12-15 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Insulating body made of plastic with mineral filler |
| JPS61188825A (en) * | 1985-02-15 | 1986-08-22 | 株式会社日立製作所 | Buffer type gas breaker |
| DE4332886A1 (en) * | 1993-09-21 | 1995-03-23 | Siemens Ag | Gas pressure switch |
-
1995
- 1995-05-24 DE DE19519992A patent/DE19519992C2/en not_active Expired - Fee Related
-
1996
- 1996-05-15 EP EP96919580A patent/EP0830700B1/en not_active Expired - Lifetime
- 1996-05-15 JP JP53526796A patent/JP3771266B2/en not_active Expired - Fee Related
- 1996-05-15 DE DE59601505T patent/DE59601505D1/en not_active Expired - Lifetime
- 1996-05-15 WO PCT/DE1996/000911 patent/WO1996037902A1/en active IP Right Grant
- 1996-05-15 CN CN96193832A patent/CN1068966C/en not_active Expired - Fee Related
- 1996-05-15 CA CA002221942A patent/CA2221942C/en not_active Expired - Fee Related
- 1996-05-15 US US08/973,738 patent/US5902980A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017206748A1 (en) | 2017-04-21 | 2018-10-25 | Siemens Aktiengesellschaft | Double nozzle switch with external contact and method for switching the double jet switch |
| WO2018192732A1 (en) | 2017-04-21 | 2018-10-25 | Siemens Aktiengesellschaft | Double nozzle switch with outer contact, and method for switching the double nozzle switch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0830700A1 (en) | 1998-03-25 |
| DE19519992C2 (en) | 2002-03-21 |
| DE59601505D1 (en) | 1999-04-29 |
| JP3771266B2 (en) | 2006-04-26 |
| CN1068966C (en) | 2001-07-25 |
| US5902980A (en) | 1999-05-11 |
| JPH11505952A (en) | 1999-05-25 |
| WO1996037902A1 (en) | 1996-11-28 |
| CN1184551A (en) | 1998-06-10 |
| DE19519992A1 (en) | 1996-11-28 |
| CA2221942C (en) | 2002-01-01 |
| CA2221942A1 (en) | 1996-11-28 |
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