EP0830700A1 - Insulating component for high-voltage equipment - Google Patents
Insulating component for high-voltage equipmentInfo
- Publication number
- EP0830700A1 EP0830700A1 EP96919580A EP96919580A EP0830700A1 EP 0830700 A1 EP0830700 A1 EP 0830700A1 EP 96919580 A EP96919580 A EP 96919580A EP 96919580 A EP96919580 A EP 96919580A EP 0830700 A1 EP0830700 A1 EP 0830700A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulating component
- grooves
- component
- webs
- insulating
- 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.)
- Granted
Links
- 238000003754 machining Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 abstract description 8
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000005684 electric field Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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.
- Such a component is known for example from DE-PS 26 26 855.
- Such insulating material components are used, for example, in electrical high-voltage switches, in particular in high-voltage circuit breakers, as spacers or as nozzles for guiding insulating gas.
- encapsulated high-voltage switchgear such components are used, for example, as supports for busbar conductors or as bushings.
- a weakly conductive fabric for dissipating surface charges is embedded in the area of the surface of the component.
- the present invention is based on the object of creating an insulating component of the type mentioned at the outset which can withstand high dielectric loads with little production outlay.
- the surface of the component has sharp-edged grooves or webs with a profile depth of at least 100 ⁇ m at least in a region that is particularly stressed in terms of dielectric.
- An advantageous embodiment of the invention provides that at least one region of the surface that is particularly stressed by dielectric has a profile depth of at least 200 ⁇ m.
- this has sharp-edged elevations or recesses in the area of its surface due to the surface structure.
- This structure leads to an improved dielectric strength, in that high electrical field strengths arise at the tips and edges, which lead to the emission of surface charges and thus limit the potential of surface charges.
- An advantageous embodiment of the invention provides that the grooves or webs are produced by machining.
- the component can be reworked, for example by casting, sintering or extrusion, in the region which is particularly stressed by dielectric, by milling or turning.
- a depth of the grooves of more than 200 ⁇ m has proven to be particularly advantageous.
- the grooves can advantageously be arranged concentrically to one another or in the form of a spiral.
- the grooves or webs can advantageously be rectangular or sawtooth-shaped in cross section. Such a profile is easy to turn or mill.
- the invention also relates to a method for producing an insulating component for high-voltage devices, in which the component, after being formed, is provided with grooves by machining or at least in a region which is subject to particularly high dielectric stress, or is machined so that there are webs stay.
- the component it is also conceivable for the component to be produced in a casting process and for the casting mold to have grooves or webs in the region which is particularly stressed in dielectric terms and which produce corresponding complementary structures on the surface of the component.
- An insulating component is often present after shaping with a uniform surface quality and can then be reworked in the regions of its surface which are particularly stressed by the method according to the invention.
- an area of the surface to be provided with unevenness using an embossing tool.
- FIG. 1 shows schematically in longitudinal section an isolator nozzle circuit breaker with an isolator nozzle made of PTFE
- FIG. 2 shows a plan view of the isolator nozzle
- FIG. 3 shows schematically in longitudinal section a double nozzle circuit breaker with a compression cylinder made of an insulating material.
- the figure shows a circuit breaker in the ON state.
- the insulating nozzle 9 which is made of PTFE, also runs off the fixed arcing contact 2.
- the insulating material nozzle 9 is connected to the compression cylinder 5 in the area of the continuous current contact 3.
- the end face 10 of the insulating material nozzle is subjected to a particularly high dielectric stress due to the electrical field between the arcing contact pieces 1, 2.
- essentially concentric grooves for example, by turning the end face a spiral groove
- a width and depth of approximately 1 mm are introduced by machining, an approximately 1 mm wide web with a rectangular cross section being arranged between the grooves .
- An arrangement according to the invention proves to be dielectrically safer than a component correspondingly equipped with a surface quality that is continuously better due to production.
- FIG. 3 shows a double nozzle switch with two fixed nozzle-shaped contact pieces 13, 14, which are conductively connected to one another by a bridging switch piece 15 in the on state.
- a compression device is provided for an extinguishing gas, consisting of a stationary compression piston 16 and a movable compression cylinder 17.
- the compression cylinder In the switched-off state, the compression cylinder is withdrawn to such an extent that its bottom 18 is located in the separating distance between the fixed contact pieces 13, 14 and is exposed there to the electric field.
- the bottom 18 has, on its side facing the switching path in the switched-off state, a cross-sectionally sawtooth-shaped structure which enables surface layers to be removed.
Landscapes
- Circuit Breakers (AREA)
- Insulating Bodies (AREA)
- Insulators (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Beschreibungdescription
Isolierendes Bauteil für HochspannungsgeräteInsulating component for high voltage devices
Die Erfindung bezieht sich auf ein isolierendes Bauteil eines Hochspannungsschaltgerätes, insbesondere zum Einsatz in gasisolierten Anlagen.The invention relates to an insulating component of a high-voltage switching device, in particular for use in gas-insulated systems.
Ein derartiges Bauteil ist beispielsweise aus der DE-PS 26 26 855 bekannt.Such a component is known for example from DE-PS 26 26 855.
Solche Isolierstoffbauteile werden beispielsweise in elektri¬ schen Hochspannungsschaltern, insbesondere in Hochspannungs- Leistungsschaltern als Abstandshalter oder als Düsen zur Füh- rung von Isoliergas eingesetzt.Such insulating material components are used, for example, in electrical high-voltage switches, in particular in high-voltage circuit breakers, as spacers or as nozzles for guiding insulating gas.
In gekapselten Hochspannungsschaltanlagen werden solche Bau¬ teile 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.In encapsulated high-voltage switchgear, such components are used, for example, as supports for busbar conductors or as bushings. You can for example made of cast resin, for. B. consist of an epoxy resin or of PTFE or a ceramic or porcelain.
Unter hoher dielektrischer Beanspruchung, d, h. bei großen elektrischen Feldstärken, insbesondere dann, wenn die Feld- stärke eine Komponente tangential zur Oberfläche des Bautei¬ les 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. in the case of large electrical field strengths, in particular when the field strength has a component tangential to the surface of the component, there is an increased probability of displacement currents on the surface of the component, which 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, a weakly conductive fabric for dissipating surface charges is embedded in the area of the surface of the component.
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 hineinrag .This naturally increases the conductivity of the component and, on the other hand, represents a high manufacturing outlay Different construction materials are connected to one another and there is a risk that part of the fabric is not firmly connected to the component and protrudes into a region of the high-voltage device that is subject to high dielectric stress.
Aus der DE-OS 30 47 761 ist es bekannt, in ein Isolierstoff¬ bauteil 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 Ober¬ fläche verhindern. Ein solches Isolierstoffbauteil stellt hohe Anforderungen an die Fertigung.From DE-OS 30 47 761 it is known to embed a mineral filler in an insulating component, the particles of which are exposed on the surface of the component and thus prevent the formation of carbon-containing and thus partially electrically conductive traces on the surface in the event of discharges . Such an insulating material component places high demands on production.
Der vorliegenden Erfindung liegt demgegenüber die Aufgabe zu- gründe, ein isolierendes Bauteil der eingangs genannten Art zu schaffen, das bei geringem Fertigungsaufwand hohen die¬ lektrischen Beanspruchungen dauerhaft standhält.In contrast, the present invention is based on the object of creating an insulating component of the type mentioned at the outset which can withstand high dielectric loads with little production outlay.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Oberfläche des Bauteils wenigstens in einem dielektrisch be¬ sonders beanspruchten Bereich scharfkantige Nuten oder Stege mit einer Profiltiefe von wenigstens 100 um aufweist.The object is achieved according to the invention in that the surface of the component has sharp-edged grooves or webs with a profile depth of at least 100 μm at least in a region that is particularly stressed in terms of dielectric.
Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, daß wenigstens ein dielektrisch besonders beanspruchter Bereich der Oberfläche eine Profiltiefe von wenigstens 200 um auf¬ weist.An advantageous embodiment of the invention provides that at least one region of the surface that is particularly stressed by dielectric has a profile depth of at least 200 μm.
Durch die Profiltiefe können an der Oberfläche des Bauteiles keine Verschiebungsströme auftreten, die elektrische Über¬ schläge initiieren könnten.Due to the profile depth, no displacement currents can occur on the surface of the component that could initiate electrical flashovers.
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 entste¬ hen, die zur Emission von Oberflächenladungen führen und so¬ mit das Potential von Oberflächenladungen begrenzen.In a cross section of the component, this has sharp-edged elevations or recesses in the area of its surface due to the surface structure. This structure leads to an improved dielectric strength, in that high electrical field strengths arise 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.To achieve this success, no other material than that from which the component is made is required.
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 bei¬ spielsweise durch Gießen, Sintern oder Extrudieren, in dem dielektrisch besonders beanspruchten Bereich durch Fräsen oder Drehen nachbearbeitet werden.In this case, the component can be reworked, for example by casting, sintering or extrusion, in the region which is particularly stressed by dielectric, by milling or turning.
Als besonders vorteilhaft erweist sich eine Tiefe der Nuten von mehr als 200 um.A depth of the grooves of more than 200 μm has proven to be particularly advantageous.
Bei einem rotationssymmetrischen Bauteil können die Nuten vorteilhaft konzentrisch zueinander oder in Form einer Spira¬ le angeordnet sein.In the case of a rotationally symmetrical component, the grooves can advantageously be arranged concentrically to one another or in the form of a spiral.
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 Lei¬ stungsschalter oft rotationssymmetrisch aufgebaut ist, liegen die Bereiche, die dielektrisch besonders hoch beansprucht sind, ebenfalls rotationssymmetrisch und können durch ent- sprechende spanende Bearbeitung (Drehen) mit den beschriebe¬ nen Nuten versehen werden.This is particularly advantageous in the case in which the component is part of an insulating material nozzle for a high-voltage circuit breaker. Since such a power switch is often constructed to be rotationally symmetrical, the regions which are particularly stressed in terms of dielectric stress are also rotationally symmetrical and can be provided with the grooves described by appropriate machining (turning).
Vorteilhaft können die Nuten oder Stege im Querschnitt recht¬ eckig oder sägezahnförmig ausgebildet sein. Ein solches Profil ist einfach zu drehen oder zu fräsen.The grooves or webs can advantageously be rectangular or sawtooth-shaped in cross section. Such a profile is easy to turn or mill.
Die Erfindung bezieht sich außerdem auf ein Verfahren zur Herstellung eines isolierenden Bauteiles für Hochspannungsge¬ räte, bei dem das Bauteil nach der Formung wenigstens in ei¬ nem 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 producing an insulating component for high-voltage devices, in which the component, after being formed, is provided with grooves by machining or at least in a region which is subject to particularly high dielectric stress, or is machined so that there are webs stay.
Es ist jedoch auch denkbar, daß das Bauteil in einem Gießver¬ fahren hergestellt wird, und daß die Gußform in dem dielek¬ trisch besonders beanspruchten Bereich Nuten oder Stege auf¬ weist, die entsprechende komplementäre Strukturen an der Oberfläche des Bauteiles erzeugen.However, it is also conceivable for the component to be produced in a casting process and for the casting mold to have grooves or webs in the region which is particularly stressed in dielectric terms and which produce corresponding complementary structures on 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 be- anspruchten Bereichen seiner Oberfläche nachbearbeitet wer¬ den.An insulating component is often present after shaping with a uniform surface quality and can then be reworked in the regions of its surface which are particularly stressed by the method according to the invention.
Es ist beispielsweise auch denkbar, daß ein Bereich der Ober¬ fläche mit einem Prägewerkzeug mit Unebenheiten versehen wird.For example, it is also conceivable for an area of the surface to be provided with unevenness using an embossing tool.
Im folgenden wird die Erfindung anhand eines Ausführungsbei- spiels in einer Zeichnung gezeigt und anschließend beschrie¬ ben.In the following, the invention is shown on the basis of an exemplary embodiment in a drawing and then described.
Dabei zeigt die Figur 1 schematisch im Längsschnitt einen Isolierstoffdüsen-Leistungsschalter mit einer Isolierstoff¬ düse aus PTFE, Figur 2 eine Draufsicht auf die Isolierstoffdüse, Figur 3 schematisch im Längsschnitt einen Doppeldüsenlei- stungsschalter mit einem Kompressionszylinder aus einem Iso¬ lierstoff .1 shows schematically in longitudinal section an isolator nozzle circuit breaker with an isolator nozzle made of PTFE, FIG. 2 shows a plan view of the isolator nozzle, FIG. 3 shows schematically in longitudinal section a double nozzle circuit breaker with a compression cylinder made of an insulating material.
Die Abbildung zeigt einen Leistungsschalter im Einschaltzu¬ stand. Es stehen einander koaxial zwei Lichtbogenkontakt- stücke 1, 2 sowie zwei Dauerεtromkontaktstücke 3, 4 gegen¬ über, die im Einschaltzustand miteinander im Eingriff stehen. Elektrische Anschlüsse des Schalters sind mit 11, 12 be- zeichnet und nur schematisch dargestellt.The figure shows a circuit breaker in the ON state. There are two coaxial arcing contact pieces 1, 2 and two continuous current contact pieces 3, 4 opposite each other, which are in engagement with each other when switched on. Electrical connections of the switch are labeled 11, 12 and are only shown schematically.
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 darge¬ stellten Schalterantrieb.To switch off, the drivable arcing contact 1 and the continuous current contact 3 connected to it by means of a compression cylinder 5 are moved to the left in the figure. This is done by a switch drive, not shown in detail.
Gleichzeitig wird in einem Kompressionsraum 6 Löschgas kom¬ primiert.At the same time, 6 extinguishing gas is compressed in a compression space.
Nach der Trennung der beiden Lichtbogenkontaktstücke 1, 2 voneinander entsteht zwischen diesen ein Lichtbogen, der das Löschgas im Bereich des Lichtbogenraumeε 7 aufheizt. Vom Lichtbogenraum 7 strömt das heiße Löschgas in den Heizraum 8, wo es für eine nachfolgende Beblasung des Lichtbogens vor¬ übergehend gespeichert wird.After the two arcing contact pieces 1, 2 have been separated from one another, an arcing arises between them, which heats the quenching gas in the region of the arcing space 7. The hot quenching gas flows from the arc space 7 into the heating space 8, where it is temporarily stored for subsequent blowing of the arc.
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 Isolierstoff¬ düse 9 ist mit dem Kompressionεzylinder 5 im Bereich des Dau¬ erstromkontaktes 3 verbunden. Nachdem die Isolierstoffdüse 9 von dem feststehenden Lichtbo¬ genkontaktstück 2 abgelaufen ist, ist die Stirnseite 10 der Isolierstoffdüse dielektrisch durch das elektrische Feld zwi¬ schen den Lichtbogenkontaktstücken 1, 2 besonders bean- sprucht. In diesem Bereich sind durch spanende Bearbeitung im wesentlichen konzentrische Nuten (beispielsweise durch Über¬ drehen 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 angeord- net ist.After the drivable arcing contact 1 has separated from the fixed arcing contact 2, the insulating nozzle 9, which is made of PTFE, also runs off the fixed arcing contact 2. The insulating material nozzle 9 is connected to the compression cylinder 5 in the area of the continuous current contact 3. After the insulating material nozzle 9 has run off the fixed arcing contact piece 2, the end face 10 of the insulating material nozzle is subjected to a particularly high dielectric stress due to the electrical field between the arcing contact pieces 1, 2. In this area, essentially concentric grooves (for example, by turning the end face a spiral groove) with a width and depth of approximately 1 mm are introduced by machining, an approximately 1 mm wide web with a rectangular cross section being arranged between the grooves .
Eine erfindungsgemäße Anordnung erweist sich als dielektrisch sicherer, als ein entsprechend mit einer fertigungεbedingt durchgehend besseren Oberflächenqualität ausgestatteteε Bau- teil.An arrangement according to the invention proves to be dielectrically safer than a component correspondingly equipped with a surface quality that is continuously better due to production.
In der Figur 3 ist ein Doppeldüsenschalter dargestellt mit zwei feststehenden düsenförmigen Kontaktstücken 13, 14, die im Einεchaltzuεtand durch ein Überbrückungεεchaltεtück 15 miteinander leitend verbunden sind. Es ist eine Kompressions¬ vorrichtung für ein Löschgas, bestehend auε einem ortεfesten Kompresεionεkolben 16 und einem beweglichen KompresεionsZy¬ linder 17 vorgesehen. Im Auεεchaltzuεtand iεt der Kompresεi- onszylinder soweit zurückgezogen, daß εein Boden 18 εich in der Trennstrecke zwischen den feststehenden Konstaktstücken 13, 14 befindet und dort dem elektrischen Feld ausgeεetzt ist. Der Boden 18 weist an seiner im Ausschaltzustand der Schaltstrecke zugewandten Seite eine im Querεchnitt säge- zahnförmige Struktur auf, die ein Abführen von Oberflächenla- düngen ermöglicht. FIG. 3 shows a double nozzle switch with two fixed nozzle-shaped contact pieces 13, 14, which are conductively connected to one another by a bridging switch piece 15 in the on state. A compression device is provided for an extinguishing gas, consisting of a stationary compression piston 16 and a movable compression cylinder 17. In the switched-off state, the compression cylinder is withdrawn to such an extent that its bottom 18 is located in the separating distance between the fixed contact pieces 13, 14 and is exposed there to the electric field. The bottom 18 has, on its side facing the switching path in the switched-off state, a cross-sectionally sawtooth-shaped structure which enables surface layers to be removed.
Claims
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 true EP0830700A1 (en) | 1998-03-25 |
| EP0830700B1 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) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29607660U1 (en) * | 1996-04-22 | 1996-06-20 | Siemens AG, 80333 München | 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 mold 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 |
| DE102017206748A1 (en) | 2017-04-21 | 2018-10-25 | Siemens Aktiengesellschaft | Double nozzle switch with external contact and method for switching the double jet switch |
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 | Patshua type gas circuit 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 JP JP53526796A patent/JP3771266B2/en not_active Expired - Fee Related
- 1996-05-15 US US08/973,738 patent/US5902980A/en not_active Expired - Lifetime
- 1996-05-15 EP EP96919580A patent/EP0830700B1/en not_active Expired - Lifetime
- 1996-05-15 DE DE59601505T patent/DE59601505D1/en not_active Expired - Lifetime
- 1996-05-15 CA CA002221942A patent/CA2221942C/en not_active Expired - Fee Related
- 1996-05-15 WO PCT/DE1996/000911 patent/WO1996037902A1/en not_active Ceased
- 1996-05-15 CN CN96193832A patent/CN1068966C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9637902A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1184551A (en) | 1998-06-10 |
| EP0830700B1 (en) | 1999-03-24 |
| US5902980A (en) | 1999-05-11 |
| DE19519992A1 (en) | 1996-11-28 |
| CN1068966C (en) | 2001-07-25 |
| CA2221942A1 (en) | 1996-11-28 |
| DE59601505D1 (en) | 1999-04-29 |
| JPH11505952A (en) | 1999-05-25 |
| WO1996037902A1 (en) | 1996-11-28 |
| CA2221942C (en) | 2002-01-01 |
| DE19519992C2 (en) | 2002-03-21 |
| JP3771266B2 (en) | 2006-04-26 |
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