EP0435865A1 - Load-break switch containing a vacuum switch tube and process for operating saidload said load-break switch. - Google Patents
Load-break switch containing a vacuum switch tube and process for operating saidload said load-break switch.Info
- Publication number
- EP0435865A1 EP0435865A1 EP88909296A EP88909296A EP0435865A1 EP 0435865 A1 EP0435865 A1 EP 0435865A1 EP 88909296 A EP88909296 A EP 88909296A EP 88909296 A EP88909296 A EP 88909296A EP 0435865 A1 EP0435865 A1 EP 0435865A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- switch
- vacuum interrupter
- switching
- vacuum
- 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
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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
- H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows
Definitions
- Vacuum interrupter switch disconnector containing such a switch tube and method for operating such a switch disconnector
- the invention is in the field of electrical switches and can be used in the design of a vacuum interrupter and in the construction and operation of a switch disconnector which contains such a vacuum interrupter.
- the vacuum interrupters used for electrical switches - in particular in the voltage range 6 to 35 kV - generally have the following structure: an insulating, tubular housing is provided with two conductive end caps, through which two coaxially opposite contact bolts are inserted into the housing.
- the contact bolts one of which is directly vacuum-tightly connected to one end cap and the other to the other end cap via a bellows, are provided with contact surfaces arranged on the end face (US Pat. No. 3,590,197).
- the contact surfaces are formed by special contact pieces for which a special material is used and which may have a special structural design (DE-OS 26 38 700).
- there are also contact pieces made of ferrous material such as
- Maraging steel or stainless chrome-nickel steels have proven to be suitable (DE-OS 23 08 913, GB-PS 1 480 285).
- Vacuum interrupters can be used for circuit breakers as well as for load break switches and contactors. In switch disconnectors, they are only loaded with the permissible continuous operating current. Therefore, their properties cannot be fully exploited in this type of application. In order to make better use of the breaking capacity of vacuum interrupters which are used in switch disconnectors, it is already known to have a first switching contact and in series with the vacuum interrupter to arrange a second switching contact in parallel with this series connection. When the switch-disconnector is switched off, the switch contact arranged in parallel, which is designed for the full switch-disconnector nominal current, is then opened; This is followed by an interruption of the arc by means of the vacuum interrupter and finally the opening of the switching contact connected in series, which forms a visible disconnection point. When the switch disconnector is switched on, the vacuum interrupter is switched on after switching on the switching contact arranged in series or only after switching on both switching contacts (DE-OS 25 22 525).
- a vacuum interrupter which consists of an insulating, tubular housing with two conductive end caps and two coaxially opposite contact bolts with contact surfaces arranged on the end face, and in which one contact bolt directly with one end cap and the other contact bolt a bellows is vacuum-tightly connected to the other end cap
- the invention is based on the novel object of designing such a vacuum interrupter in such a way that it is essentially tailored only to the function of switching off a load current.
- the contact bolts are made of chromium-nickel steel and that the end faces of these contact bolts form the contact surfaces of the vacuum interrupter.
- Such a vacuum interrupter is very simple, especially in the area of the contact point, since neither specially designed contact pieces nor high-quality contact materials are used; rather, the end faces of the contact bolts themselves form the contact areas.
- a commercially available steel alloy and therefore a very inexpensive material are used for the contact bolts.
- the new vacuum interrupter is particularly suitable for use in switch disconnectors.
- such an assignment of the vacuum interrupter to two knife-like switching contacts and such a switching sequence of the total of three switching contacts is provided that the vacuum interrupter carries no rated current, is not switched on to the short-circuit current and does not need to have a static dielectric strength .
- one knife-like switching contact is arranged parallel to the vacuum interrupter and the other knife-like switching contact is arranged in series with the parallel connection of vacuum interrupter and first switching contact, and that when the load disconnector is in operation, the vacuum interrupter when the load disconnector is switched on and in the normal switch-on position of the two switching contacts is kept open, that to switch off the load-break switch the contact of the vacuum interrupter is first closed and then the switching contact arranged in parallel, then the contact of the vacuum interrupter and finally the switching contact arranged in series are opened.
- Figure 1 shows an exemplary embodiment of the new vacuum interrupter and Figure 2 shows a circuit diagram for the assignment of this vacuum interrupter to two knife-like switching contacts of a switch disconnector.
- FIG. 1 shows a vacuum interrupter which, in a known manner, consists of a housing 1 in the form of a cylinder-shaped insulator made of aluminum oxide ceramic with two end caps 2 and 3 made of oxygen-free copper and two cylindrical contact bolts 4 and 5 lying coaxially opposite one another.
- the two end caps 2 and 3 are connected in a butt joint directly to the end faces of the housing 2 by means of a vacuum connection by means of a soldered connection, and on the other hand directly to the contact bolt 4 or indirectly via a bellows 6 and a steam shield 7 soldered vacuum-tight to the axially movable contact pin 5.
- the movable contact pin 5 is further guided with the aid of a flange part 8 which is supported against the end cap 3.
- the contact system of the vacuum interrupter consists of the two cylindrical contact bolts 4 and 5 which are located coaxially opposite one another and which, when switched on, touch with their mutually facing end faces 41, 51. Except for a slight rounding of the edges • the same time serving as contact members of the contact system and Stromzü arrangement justifybolze no constructive measures are seen vorge at the contact surfaces of the cause affecting aufadd ⁇ during switching the arc.
- the contact bolts are made of chrome-nickel steel, which is inherently poorly conductive, but also poorly welded in a vacuum and has a low gas content.
- the vacuum interrupter designed according to FIG. 1 is to be used in particular as a load interrupter.
- it is arranged parallel to a knife-like switch contact 12 in a load-break switch and a further knife-like switch contact 11 is arranged in series with this parallel connection.
- the drive of such a load break switch is to be designed in such a way that in the normal operating state of the switch the switch contact of the vacuum interrupter 10 is opened, that to switch off the load break switch the vacuum switch tube 10 is first switched on parallel to the switch contact 12, then the switch contact 12 is opened , then the vacuum interrupter 10 is switched off and finally the switch contact 11 is also opened.
- This switch-disconnector is only switched on by closing the switching contacts 11 and 12.
- Such an operating mode has the advantage that the load-switching tube is not subjected to the switch-on short-circuit current or the rated current and is also not subject to constant static voltage stress. Therefore, only low dielectric, dynamic and thermal requirements have to be placed on the vacuum interrupter will. This makes it possible to manufacture the vacuum interrupter much smaller and more cost-effectively than conventional interrupters.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Les chevilles de contact (4, 5) coaxialement opposées d'un tube commutateur à vide (10) spécialement conçu pour un sectionneur à coupure en charge sont en acier chrome-nickel; les surfaces de contact sont constituées par les surfaces frontales des chevilles de contact (4, 5). Ce tube commutateur à vide (10) est conçu spécialement pour la fonction "interruption du courant sous charge". A cet effet, le contact du tube commutateur à vide (10) n'est fermé que juste avant l'ouverture d'un contact de commutation (12) qui lui est parallèle.The coaxially opposed contact pins (4, 5) of a vacuum switch tube (10) specially designed for a load-breaking disconnector are made of chromium-nickel steel; the contact surfaces are formed by the front surfaces of the contact pins (4, 5). This vacuum switch tube (10) is specially designed for the "load current interruption" function. For this purpose, the contact of the vacuum switch tube (10) is only closed just before the opening of a switching contact (12) which is parallel to it.
Description
Vakuumschaltröhre, eine solche Schaltröhre enthaltender Last¬ trennschalter und Verfahren zum Betrieb eines solchen Last¬ trennschalters Vacuum interrupter, switch disconnector containing such a switch tube and method for operating such a switch disconnector
Technisches GebietTechnical field
Die Erfindung liegt auf dem Gebiet der elektrischen Schalter und ist bei der konstruktiven Ausgestaltung einer Vakuumschalt¬ röhre und beim Aufbau und Betrieb eines Lasttrennschalters an¬ zuwenden, der eine solche Vakuumschaltröhre enthält.The invention is in the field of electrical switches and can be used in the design of a vacuum interrupter and in the construction and operation of a switch disconnector which contains such a vacuum interrupter.
Stand der TechnikState of the art
Die für elektrische Schalter - insbesondere im Spannungsbereich 6 bis 35 kV - verwendeten Vakuumschaltröhren zeigen in aller Regel folgenden Aufbau: ein isolierendes, rohrförmiges Gehäuse ist mit zwei leitenden Endkappen versehen, durch die hindurch zwei einander koaxial gegenüberliegende Kontaktbolzeπ in das Gehäuse eingeführt sind. Die Kontaktbolzen, von denen der eine direkt mit der einen Endkappe und der andere über einen Falten¬ balg mit der anderen Endkappe vakuumdicht verbunden ist, sind mit stirnseitig angeordneten Kontaktflächen versehen (US-PS 3 590 197). Die Kontaktflächen werden dabei von besonderen Kon¬ taktstücken gebildet, für die ein spezieller Werkstoff einge¬ setzt wird und die gegebenenfalls eine spezielle konstruktive Gestaltung aufweisen (DE-OS 26 38 700). Beispielsweise haben sich auch Kontaktstücke aus eisenhaltigem Material wieThe vacuum interrupters used for electrical switches - in particular in the voltage range 6 to 35 kV - generally have the following structure: an insulating, tubular housing is provided with two conductive end caps, through which two coaxially opposite contact bolts are inserted into the housing. The contact bolts, one of which is directly vacuum-tightly connected to one end cap and the other to the other end cap via a bellows, are provided with contact surfaces arranged on the end face (US Pat. No. 3,590,197). The contact surfaces are formed by special contact pieces for which a special material is used and which may have a special structural design (DE-OS 26 38 700). For example, there are also contact pieces made of ferrous material such as
Maraging-Stahl oder rostfreien Chrom-Nickel-Stählen als geeig¬ net erwiesen (DE-OS 23 08 913, GB-PS 1 480 285).Maraging steel or stainless chrome-nickel steels have proven to be suitable (DE-OS 23 08 913, GB-PS 1 480 285).
Vakuumschaltröhren können sowohl für Leistungsschalter als auch für Lasttrennschalter und Schütze eingesetzt werden. In Last¬ trennschaltern werden sie nur mit dem zulässigen Dauerbetriebs¬ strom belastet. Daher können ihre Eigenschaften bei dieser An¬ wendungsart nicht voll ausgenutzt werden. Um die Ausschalt¬ leistung von Vakuumschaltröhren, die in Lasttrennschaltern ein- gesetzt sind, besser auszunutzen, ist es bereits bekannt, in Reihe mit der Vakuumschaltröhre einen ersten Schaltkontakt und
parallel zu dieser Reihenschaltung einen zweiten Schaltkontakt anzuordnen. Beim Ausschalten des Lasttrennschalters wird dann zunächst der parallel angeordnete Schaltkontakt geöffnet, der für den vollen Lasttrennschalter-Nennstrom ausgelegt ist; da- nach erfolgt eine Lichtbogenunterbrechung mittels der Vakuum¬ schaltröhre und abschließend das Öffnen des in Reihe geschal¬ teten Schaltkontaktes, der eine sichtbare Trennstelle bildet. - Beim Einschalten des Lasttrennschalters wird die Vakuumschalt¬ röhre nach dem Einschalten des in Reihe angeordneten Schaltkon- taktes oder erst nach dem Einschalten beider Schaltkontakte ge¬ schaltet (DE-OS 25 22 525).Vacuum interrupters can be used for circuit breakers as well as for load break switches and contactors. In switch disconnectors, they are only loaded with the permissible continuous operating current. Therefore, their properties cannot be fully exploited in this type of application. In order to make better use of the breaking capacity of vacuum interrupters which are used in switch disconnectors, it is already known to have a first switching contact and in series with the vacuum interrupter to arrange a second switching contact in parallel with this series connection. When the switch-disconnector is switched off, the switch contact arranged in parallel, which is designed for the full switch-disconnector nominal current, is then opened; This is followed by an interruption of the arc by means of the vacuum interrupter and finally the opening of the switching contact connected in series, which forms a visible disconnection point. When the switch disconnector is switched on, the vacuum interrupter is switched on after switching on the switching contact arranged in series or only after switching on both switching contacts (DE-OS 25 22 525).
Die ErfindungThe invention
Ausgehend von einer Vakuumschaltröhre, die aus einem isolieren- den, rohrförmigen Gehäuse mit zwei leitenden Endkappen und aus zwei einander koaxial gegenüberliegenden Kontaktbolzen mit stirn¬ seitig angeordneten Kontaktflächen besteht und bei der der eine Kontaktbolzen direkt mit der einen Endkappe und der andere Kon¬ taktbolzen über einen Faltenbalg mit der anderen Endkappe vakuumdicht verbunden ist, liegt der Erfindung die neuartige Aufgabe zugrunde, eine solche Vakuumschaltröhre so auszugestal¬ ten, daß sie im wesentlichen nur auf die Funktion der Ausschal¬ tung eines Laststromes zugeschnitten ist.Starting from a vacuum interrupter, which consists of an insulating, tubular housing with two conductive end caps and two coaxially opposite contact bolts with contact surfaces arranged on the end face, and in which one contact bolt directly with one end cap and the other contact bolt a bellows is vacuum-tightly connected to the other end cap, the invention is based on the novel object of designing such a vacuum interrupter in such a way that it is essentially tailored only to the function of switching off a load current.
Zur Lösung dieser Aufgabe ist gemäß der Erfindung vorgesehen, daß die Kontaktbolzen aus Chrom-Nickel-Stahl bestehen und daß die Stirnflächen dieser Kontaktbolzen die Kontaktflächen der Vakuumschaltröhre bilden.To achieve this object it is provided according to the invention that the contact bolts are made of chromium-nickel steel and that the end faces of these contact bolts form the contact surfaces of the vacuum interrupter.
Eine derartige Vakuumschaltröhre ist vor allem im Bereich der Kontaktstelle sehr einfach aufgebaut, da weder speziell ausge¬ bildete Kontaktstücke noch hochwertige Kontaktwerkstoffe ver¬ wendet werden; vielmehr bilden die Stirnflächen der Kontakt¬ bolzen selbst die Kontaktflächen. Für die Kontaktbolzen kommt dabei eine handelsübliche Stahllegierung und damit ein sehr preiswerter Werkstoff zum Einsatz.
Wie bereits erwähnt, eignet sich die neue Vakuumschaltröhre insbesondere zum Einsatz in Lasttrennschaltern. Dabei ist in Weiterbildung der Erfindung eine solche Zuordnung der Vakuum¬ schaltröhre zu zwei messerartigen Schaltkontakten sowie eine solche Schaltfolge der insgesamt drei Schaltkontakte vorge¬ sehen, daß die Vakuumschaltröhre keinen Nenn-Strom führt, nicht auf den Kurzschlußstrom eingeschaltet wird und keine statische Spannungsfestigkeit aufzuweisen braucht. Hierzu ist vorgesehen, daß der eine messerartige Schaltkontakt parallel zur Vakuum- schaltröhre und der andere messerartige Schaltkontakt in Reihe zur Parallelschaltung aus Vakuumschaltröhre und erstem Schalt¬ kontakt angeordnet ist und daß beim Betrieb des Lasttrennschal¬ ters die Vakuumschaltröhre beim Einschalten des Lasttrennschal¬ ters und in der normalen Einschaltstellung der beiden Schaltkon- takte offengehalten wird, daß zum Ausschalten des Lasttrenn¬ schalters zunächst der Kontakt der Vakuumschaltröhre geschlossen wird und daß danach der parallel angeordnete Schaltkontakt, so¬ dann der Kontakt der Vakuumschaltröhre und abschließend der in Reihe angeordnete Schaltkontakt geöffnet werden.Such a vacuum interrupter is very simple, especially in the area of the contact point, since neither specially designed contact pieces nor high-quality contact materials are used; rather, the end faces of the contact bolts themselves form the contact areas. A commercially available steel alloy and therefore a very inexpensive material are used for the contact bolts. As already mentioned, the new vacuum interrupter is particularly suitable for use in switch disconnectors. In a further development of the invention, such an assignment of the vacuum interrupter to two knife-like switching contacts and such a switching sequence of the total of three switching contacts is provided that the vacuum interrupter carries no rated current, is not switched on to the short-circuit current and does not need to have a static dielectric strength . For this purpose, it is provided that one knife-like switching contact is arranged parallel to the vacuum interrupter and the other knife-like switching contact is arranged in series with the parallel connection of vacuum interrupter and first switching contact, and that when the load disconnector is in operation, the vacuum interrupter when the load disconnector is switched on and in the normal switch-on position of the two switching contacts is kept open, that to switch off the load-break switch the contact of the vacuum interrupter is first closed and then the switching contact arranged in parallel, then the contact of the vacuum interrupter and finally the switching contact arranged in series are opened.
Abbildungen der ZeichnungIllustrations of the drawing
Figur 1 zeigt ein Ausführuπgsbeispiel der neuen Vakuumschalt¬ röhre und Figur 2 ein Schaltbild für die Zuordnung dieser Vakuumschaltröhre zu zwei messerartigen Schaltkontakten eines Lasttrennschalters.Figure 1 shows an exemplary embodiment of the new vacuum interrupter and Figure 2 shows a circuit diagram for the assignment of this vacuum interrupter to two knife-like switching contacts of a switch disconnector.
AusführungsbeispielEmbodiment
Figur 1 zeigt eine Vakuumschaltröhre, die in bekannter Weise aus einem Gehäuse 1 in Form eines zylinderför igen Isolators aus Aluminiumoxyd-Keramik mit zwei Endkappen 2 und 3 aus sauer¬ stofffreiem Kupfer und zwei einander koaxial gegenüberliegenden zylindrischen Kontaktbolzen 4 und 5 besteht. Die beiden End¬ kappen 2 und 3 sind einerseits in stumpfen Stoß direkt mit den Stirnseiten des Gehäuses 2 mittels einer Lötverbindung vakuu - dicht verbunden und andererseits direkt mit dem Kontaktbolzen 4 bzw. indirekt über einen Faltenbalg 6 und einen Dampfschirm 7
mit dem axial beweglichen Kontaktbolzen 5 vakuumdicht verlötet. Der bewegliche Kontaktbolzen 5 ist weiterhin mit Hilfe eines Flanschteiles 8 geführt, das sich gegen die Endkappe 3 ab¬ stützt. Das Kontaktsystem der Vakuumschaltröhre besteht aus den beiden einander koaxial gegenüberliegenden zylindrischen Kontakt¬ bolzen 4 und 5, die sich im eingeschalteten Zustand mit ihren einander zugewandten Stirnflächen 41,51 berühren. Außer einer • leichten Abrundung der Kanten der gleichzeitig als Schaltstücke und Stromzüführung des Kontaktsystems dienenden Kontaktbolze sind keine konstruktiven Maßnahmen an den Kontaktflächen vorge¬ sehen, die eine Beeinflussung des beim Schaltvorgang auftreten¬ den Lichtbogens bewirken. Die Kontaktbolzen bestehen aus Chrom- Nickel-Stahl, der an sich schlecht leitend, aber im Vakuum auch schlecht verschweißend ist und einen niedrigen Gasgehalt auf- weist.FIG. 1 shows a vacuum interrupter which, in a known manner, consists of a housing 1 in the form of a cylinder-shaped insulator made of aluminum oxide ceramic with two end caps 2 and 3 made of oxygen-free copper and two cylindrical contact bolts 4 and 5 lying coaxially opposite one another. The two end caps 2 and 3 are connected in a butt joint directly to the end faces of the housing 2 by means of a vacuum connection by means of a soldered connection, and on the other hand directly to the contact bolt 4 or indirectly via a bellows 6 and a steam shield 7 soldered vacuum-tight to the axially movable contact pin 5. The movable contact pin 5 is further guided with the aid of a flange part 8 which is supported against the end cap 3. The contact system of the vacuum interrupter consists of the two cylindrical contact bolts 4 and 5 which are located coaxially opposite one another and which, when switched on, touch with their mutually facing end faces 41, 51. Except for a slight rounding of the edges • the same time serving as contact members of the contact system and Stromzüführung Kontaktbolze no constructive measures are seen vorge at the contact surfaces of the cause affecting auftreten¬ during switching the arc. The contact bolts are made of chrome-nickel steel, which is inherently poorly conductive, but also poorly welded in a vacuum and has a low gas content.
Die gemäß Figur 1 ausgebildete Vakuumschaltröhre soll insbesondere als Lastschaltröhre eingesetzt werden. Hierzu ist sie gemäß Figur 2 bei einem Lasttrennschalter parallel zu einem messerartigen Schaltkontakt 12 angeordnet und in Reihe zu dieser Parallelschaltung ist ein weiterer messserartiger Schalt¬ kontakt 11 angeordnet. Der Antrieb eines solchen Lasttrenn¬ schalters ist so zu gestalten, daß im normalen Betriebszuεtand des Schalters der Schaltkontakt der Vakuumschaltröhre 10 ge- öffnet ist, daß zum Ausschalten des Lasttrennschalters zu¬ nächst die Vakuumschaltröhre 10 parallel zum Schaltkontakt 12 eingeschaltet, dann der Schaltkontakt 12 geöffnet, danach die Vakuumschaltröhre 10 ausgeschaltet und abschließend der Schalt¬ kontakt 11 ebenfalls geöffnet wird. Das Einschalten dieses Lasttrennschalters erfolgt lediglich durch Schließen der Schaltkontakte 11 und 12. Eine solche Betriebsweise hat den Vorteil, daß die Lastschaltröhre weder mit dem Einschalt-Kurz- schlußstrom noch mit dem Nenn-Strom beansprucht wird und auch keiner ständigen statischen Spannungsbeanspruchung unterliegt. Daher müssen an die Vakuumschaltröhre nur geringe dielek¬ trische, dynamische und thermische Anforderungen gestellt
werden. Dies ermöglicht es, die Vakuumschaltröhre wesentlich kleiner und kostengünstiger als bisher übliche Schaltröhren herzustellen.The vacuum interrupter designed according to FIG. 1 is to be used in particular as a load interrupter. For this purpose, according to FIG. 2, it is arranged parallel to a knife-like switch contact 12 in a load-break switch and a further knife-like switch contact 11 is arranged in series with this parallel connection. The drive of such a load break switch is to be designed in such a way that in the normal operating state of the switch the switch contact of the vacuum interrupter 10 is opened, that to switch off the load break switch the vacuum switch tube 10 is first switched on parallel to the switch contact 12, then the switch contact 12 is opened , then the vacuum interrupter 10 is switched off and finally the switch contact 11 is also opened. This switch-disconnector is only switched on by closing the switching contacts 11 and 12. Such an operating mode has the advantage that the load-switching tube is not subjected to the switch-on short-circuit current or the rated current and is also not subject to constant static voltage stress. Therefore, only low dielectric, dynamic and thermal requirements have to be placed on the vacuum interrupter will. This makes it possible to manufacture the vacuum interrupter much smaller and more cost-effectively than conventional interrupters.
3 Ansprüche 2 Figuren
3 claims 2 figures
BezugszeichenlisteReference symbol list
1 Gehäuse1 housing
2 Endkappe2 end cap
3 Endkappe3 end cap
4 Kontaktbolzen4 contact bolts
5 Kontaktbolzen5 contact bolts
6 Faltenbalg6 bellows
7 Dampfschirm7 steam screen
8 Flanschteil 0 Vakuumschaltröhre 1 messerartiger Schaltkontakt 2 messerartiger Schaltkontakt 1 Stirnfläche 1 Stirnfläche
8 flange part 0 vacuum interrupter 1 knife-like switch contact 2 knife-like switch contact 1 end face 1 end face
Claims
PatentansprücheClaims
1. Vakuumschaltröhre, die aus einem isolierenden, rohrförmigen Gehäuse mit zwei leitenden Endkappen und aus zwei einander koaxial gegenüberliegenden Kontaktbolzen mit stirnseitig angeordneten Kontaktflächen besteht und bei der der eine Kontaktbolzen direkt mit der einen Endkappe und der andere Kontaktbolzen über einen Faltenbalg mit der anderen Endkappe vakuumdicht verbunden ist und bei der weiterhin die Kontakt- bolzen (4, 5) aus Chrom-Nickel-Stahl bestehen und die Stirn¬ flächen (41,51) der Kontaktbolzen die Kontaktflächen der Vakuumschaltröhre bilden.1.Vacuum interrupter, which consists of an insulating, tubular housing with two conductive end caps and two coaxially opposite contact bolts with contact surfaces arranged on the front and in which one contact bolt is vacuum-tight directly with one end cap and the other contact bolt via a bellows with the other end cap is connected and in which the contact bolts (4, 5) consist of chrome-nickel steel and the end faces (41, 51) of the contact bolts form the contact surfaces of the vacuum interrupter.
2. Lasttrennschalter mit zwei messerartigen Schaltkontakten und einer Vakuumschaltröhre nach Anspruch 1, bei der der eine messerartige Schaltkontakt (12) parallel zur Vakuumschaltröhre2. Switch disconnector with two knife-like switch contacts and a vacuum interrupter according to claim 1, wherein the one knife-like switch contact (12) parallel to the vacuum interrupter
(10) und der andere messerartige Schaltkontakt (11) in Reihe zur Parallelschaltung aus Vakuumschaltröhre (10) und erstem Schaltkontakt (12) angeordnet ist.(10) and the other knife-like switching contact (11) is arranged in series with the parallel connection of the vacuum interrupter (10) and the first switching contact (12).
3. Verfahren zum Betrieb eines Lasttrennschalters gemäß An¬ spruch 2 mit folgender Schaltfolge der Schaltkontakte und der Vakuumschaltröhre: die Vakuumschaltröhre (10) wird beim Einschalten des Lasttrenn- Schalters und in der normalen Einschaltstellung der beiden Schaltkontakte (11, 12) offen gehalten, zum Ausschalten des Lasttrennschalters wird zunächst der Kontakt der Vakuumschalt¬ röhre (10) und danach der parallel angeordnete Schaltkontakt (12) geschlossen, sodann wird der Kontakt der Vakuumschaltröhre (10) und abschließend der in Reihe angeordnete Schaltkontakt3. Method for operating a switch disconnector according to claim 2 with the following switching sequence of the switch contacts and the vacuum interrupter: the vacuum interrupter (10) is kept open when the switch disconnector is switched on and in the normal switch-on position of the two switch contacts (11, 12) Switching off the switch disconnector first closes the contact of the vacuum switching tube (10) and then the switching contact (12) arranged in parallel, then the contact of the vacuum switching tube (10) and finally the switching contact arranged in series
(11) geöffnet.
(11) open.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3832493 | 1988-09-22 | ||
| DE3832493A DE3832493A1 (en) | 1988-09-22 | 1988-09-22 | VACUUM SWITCH TUBES, A SWITCH DISCONNECT CONTAINING SUCH A SWITCH TUBE AND METHOD FOR OPERATING SUCH A SWITCH DISCONNECTOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0435865A1 true EP0435865A1 (en) | 1991-07-10 |
| EP0435865B1 EP0435865B1 (en) | 1993-08-11 |
Family
ID=6363638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88909296A Expired - Lifetime EP0435865B1 (en) | 1988-09-22 | 1988-10-28 | Load-break switch containing a vacuum switch tube and process for operating saidload said load-break switch |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5168139A (en) |
| EP (1) | EP0435865B1 (en) |
| JP (1) | JPH04500740A (en) |
| KR (1) | KR900702551A (en) |
| DE (2) | DE3832493A1 (en) |
| WO (1) | WO1990003657A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022069199A1 (en) * | 2020-09-30 | 2022-04-07 | Siemens Aktiengesellschaft | Compact vacuum interrupter |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0479117A (en) * | 1990-07-19 | 1992-03-12 | Fuji Electric Co Ltd | Gas insulation switchgear |
| DE4214550A1 (en) * | 1992-04-29 | 1993-11-04 | Siemens Ag | VACUUM SWITCH TUBES |
| FR2719154B1 (en) * | 1994-04-25 | 1996-06-07 | Merlin Gerin | Medium voltage electric switch. |
| DE4447391C1 (en) * | 1994-12-23 | 1996-06-05 | Siemens Ag | Vacuum switch |
| DE19721611C2 (en) * | 1997-05-23 | 2003-08-07 | Abb Patent Gmbh | vacuum chamber |
| DE19918077C1 (en) * | 1999-04-21 | 2000-11-09 | Driescher Eltech Werk | HV load switch e.g. for electric railway, has vacuum switch chamber adjacent main switching contacts containing contacts which are closed for extinguishing arc between main switching contacts |
| DE10317735B3 (en) * | 2003-04-11 | 2004-11-18 | Siemens Ag | Earthing switch with a movable contact piece |
| DE102004006476B4 (en) * | 2004-02-04 | 2006-02-09 | Siemens Ag | Switch disconnectors |
| DE102008031472B4 (en) * | 2008-07-02 | 2010-05-06 | Siemens Aktiengesellschaft | Vacuum interrupter |
| FR2970809B1 (en) * | 2011-01-25 | 2013-02-22 | Schneider Electric Ind Sas | MEDIUM VOLTAGE CUTTING DEVICE COMPRISING A VACUUM BULB |
| US8674254B2 (en) | 2011-01-31 | 2014-03-18 | Thomas & Betts International, Inc. | Flexible seal for high voltage switch |
| US9373617B2 (en) | 2011-09-11 | 2016-06-21 | Cree, Inc. | High current, low switching loss SiC power module |
| EP2754177A1 (en) | 2011-09-11 | 2014-07-16 | Cree, Inc. | High current density power module comprising transistors with improved layout |
| US9640617B2 (en) | 2011-09-11 | 2017-05-02 | Cree, Inc. | High performance power module |
| CN102568913A (en) * | 2011-12-21 | 2012-07-11 | 西安交通大学 | Vacuum circuit breaker with improved rated current |
| CN105789924A (en) * | 2014-12-15 | 2016-07-20 | 西门子公司 | Compensation module of high-voltage switch and high-voltage switch |
| US9679724B2 (en) | 2015-07-13 | 2017-06-13 | Eaton Corporation | Component for electric power system, and contact assembly and open air arcing elimination method therefor |
| FR3056822B1 (en) * | 2016-09-28 | 2018-10-12 | Schneider Electric Ind Sas | VACUUM BULB FOR ELECTRICAL CONNECTION APPARATUS |
| FR3074607A1 (en) * | 2017-12-04 | 2019-06-07 | Schneider Electric Industries Sas | VACUUM BULB FOR ELECTRICAL CUTTING APPARATUS |
| DE102017222413A1 (en) * | 2017-12-11 | 2019-06-13 | Siemens Aktiengesellschaft | Overpressure-resistant vacuum interrupter |
| DE102018200450A1 (en) * | 2018-01-12 | 2019-07-18 | Siemens Aktiengesellschaft | Vacuum interrupter |
| DE102019216663B4 (en) * | 2019-10-29 | 2023-02-02 | Siemens Aktiengesellschaft | Vacuum switching device for a circuit with main and auxiliary current path |
| DE102020210342A1 (en) | 2020-08-14 | 2022-02-17 | Siemens Aktiengesellschaft | Improved Vacuum Interrupter |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1640038A1 (en) * | 1966-05-27 | 1970-09-10 | English Electric Co Ltd | Vacuum switch contacts |
| US3646294A (en) * | 1970-12-31 | 1972-02-29 | Itt | Switch |
| GB1309197A (en) * | 1971-10-28 | 1973-03-07 | Int Standard Electric Corp | Vacuum interrupter contacts |
| US3769538A (en) * | 1972-03-20 | 1973-10-30 | Gen Electric | Vacuum arc devices with ferrous electrodes |
| US3824359A (en) * | 1972-10-06 | 1974-07-16 | Mc Graw Edison Co | Vacuum loadbreak switch |
| US3825789A (en) * | 1973-06-29 | 1974-07-23 | Gen Electric | Vacuum arc devices with hard, ductile, ferrous electrodes |
| JPS50157827A (en) * | 1974-06-11 | 1975-12-20 | ||
| DE2522525A1 (en) * | 1975-05-21 | 1976-12-02 | Driescher Eltech Werk | Load disconnector with arc quenching in vacuum chamber - appropriate for operation in medium voltage range |
| DE2638700C3 (en) * | 1976-08-27 | 1983-11-10 | Siemens AG, 1000 Berlin und 8000 München | Electric vacuum switch |
| JPS5736733A (en) * | 1980-08-14 | 1982-02-27 | Tokyo Shibaura Electric Co | |
| JPS5848321A (en) * | 1981-09-16 | 1983-03-22 | 株式会社明電舎 | Vacuum breaker |
| DE3611270C2 (en) * | 1986-04-04 | 1995-08-17 | Sachsenwerk Ag | Electrical switching device for high switching voltages |
-
1988
- 1988-09-22 DE DE3832493A patent/DE3832493A1/en not_active Withdrawn
- 1988-10-28 US US07/671,919 patent/US5168139A/en not_active Expired - Fee Related
- 1988-10-28 DE DE8888909296T patent/DE3883258D1/en not_active Expired - Fee Related
- 1988-10-28 WO PCT/DE1988/000674 patent/WO1990003657A1/en active IP Right Grant
- 1988-10-28 KR KR1019900701062A patent/KR900702551A/en not_active Application Discontinuation
- 1988-10-28 EP EP88909296A patent/EP0435865B1/en not_active Expired - Lifetime
- 1988-10-28 JP JP63508587A patent/JPH04500740A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9003657A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022069199A1 (en) * | 2020-09-30 | 2022-04-07 | Siemens Aktiengesellschaft | Compact vacuum interrupter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3883258D1 (en) | 1993-09-16 |
| EP0435865B1 (en) | 1993-08-11 |
| JPH04500740A (en) | 1992-02-06 |
| KR900702551A (en) | 1990-12-07 |
| WO1990003657A1 (en) | 1990-04-05 |
| US5168139A (en) | 1992-12-01 |
| DE3832493A1 (en) | 1990-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0435865B1 (en) | Load-break switch containing a vacuum switch tube and process for operating saidload said load-break switch | |
| EP2059938A1 (en) | Vacuum circuit breaker | |
| EP1098332B1 (en) | Rapid current-limiting switch | |
| EP1155429B1 (en) | Vacuum interrupter chamber with ring-shaped insulator | |
| DE3319010C2 (en) | ||
| DE2522525A1 (en) | Load disconnector with arc quenching in vacuum chamber - appropriate for operation in medium voltage range | |
| EP0744759B1 (en) | H.T. circuit breaker with a fixed heating chamber | |
| DE2754547A1 (en) | VACUUM SWITCH | |
| EP0136965B1 (en) | Isolating switch for a metal-clad pressurized-gas-insulated high-voltage switchgear | |
| EP1050058B1 (en) | Vacuum interrupter chamber with a ring-shaped isolator | |
| DE3705719C2 (en) | ||
| DE3407858C2 (en) | ||
| DE2828773A1 (en) | AUTOPNEUMATIC PRESSURE GAS SWITCH | |
| DE3827102C2 (en) | ||
| DE3233004C2 (en) | ||
| DE3224778A1 (en) | High-voltage switching chamber with an auxiliary arc | |
| DE3427873C2 (en) | ||
| DE2353141C3 (en) | Vacuum switch | |
| DE19519078A1 (en) | High voltage vacuum switch | |
| DE102013225112B4 (en) | Electrical switchgear | |
| WO2023147967A1 (en) | Controllable vacuum interrupter, and arrangement and method for controlling vacuum interrupters | |
| DE2310129A1 (en) | ELECTRIC CIRCUIT BREAKER | |
| DE1640202C3 (en) | Vacuum interrupter for very high currents | |
| DE2620208C3 (en) | Auto-pneumatic high voltage switch | |
| DE3138216C2 (en) | Arc switch for a high-voltage compressed gas switchgear chamber |
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: 19910206 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI SE |
|
| 17Q | First examination report despatched |
Effective date: 19921030 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19930811 |
|
| REF | Corresponds to: |
Ref document number: 3883258 Country of ref document: DE Date of ref document: 19930916 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19931031 Ref country code: CH Effective date: 19931031 |
|
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19931119 |
|
| 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 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19960919 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19961025 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19961216 Year of fee payment: 9 |
|
| 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: 19971028 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19971031 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19971028 |
|
| 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: 19980701 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051028 |