DE918213C - Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches - Google Patents

Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches

Info

Publication number
DE918213C
DE918213C DEA18239D DEA0018239D DE918213C DE 918213 C DE918213 C DE 918213C DE A18239 D DEA18239 D DE A18239D DE A0018239 D DEA0018239 D DE A0018239D DE 918213 C DE918213 C DE 918213C
Authority
DE
Germany
Prior art keywords
switches
insulating body
compressed gas
free
nozzle bodies
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
Application number
DEA18239D
Other languages
German (de)
Inventor
Dipl-Ing Vitaly Grosse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALLG ELEKTICITAETS GES
Original Assignee
ALLG ELEKTICITAETS GES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALLG ELEKTICITAETS GES filed Critical ALLG ELEKTICITAETS GES
Priority to DEA18239D priority Critical patent/DE918213C/en
Application granted granted Critical
Publication of DE918213C publication Critical patent/DE918213C/en
Expired legal-status Critical Current

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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials

Landscapes

  • Laminated Bodies (AREA)

Description

In Freistrahl-Druckgasschaltern erfolgt die Lichtbogenlöschung in Löschköpfen, in welchen der Unterbrechungslichtbogen vom Druckgasstrom in einer Isolierstofföffnung beblasen wird. Die düsenförmige öffnung befindet sich in einem Isolierkörper, dem Düsenkörper, der hohl ist und innen zur Druckgasführung dient, während er außen Schirme aufweist, um einen äußeren Überschlag zu vermeiden. Derartige Düsenkörper wurden aus Hartgummi hergestellt. Es hat sich gezeigt, daß andere Stoffe, welche weniger rußen, insbesondere Polyakrylsäurederivate, im Hinblick auf die Lichtbogenlöschung günstiger sind. Ähnliche Verhältnisse ergeben sich bei den aus Isolierstoff bestehenden Schaltkammern anderer Hochspannungsschalter, wie z. B. Wasserschalter.In free-jet compressed gas switches, the arc is extinguished in Erase heads, in which the interruption arc from the compressed gas flow in a Insulating material opening is blown. The nozzle-shaped opening is located in one Insulating body, the nozzle body, which is hollow and serves to guide the compressed gas on the inside, while it has screens on the outside to avoid external flashover. Such Nozzle bodies were made from hard rubber. It has been shown that other substances which soot less, especially polyacrylic acid derivatives, with regard to arc extinguishing are cheaper. Similar relationships arise with those made of insulating material Switching chambers of other high-voltage switches, such as. B. water switch.

Die vorerwähnten Stoffe haben den Charakter organischer Gläser. Sie erweichen in der Wärme und «-eisen starke Kerbempfindlichkeit auf. Es ist daher schwierig, derartige Düsenkörper, die stoßweise durch Druckgas beansprucht werden und gleichzeitig bei vielen Freistrahlschaltertypen hohe mechanische Beschleunigungen bzw. Verzögerungen erfahren, mit hinreichender Festigkeit herzustellen. Vor allem wird die zweckmäßigerweise als Gewinde ausgebildete Verbindungsstelle mit dem metallischen Freistrahlschalterarm stark beansprucht.The aforementioned substances have the character of organic glasses. she in the warmth and iron soften strong notch sensitivity. It is therefore difficult, such nozzle bodies, which are intermittently stressed by compressed gas and at the same time high mechanical accelerations for many free jet switch types or experience delays to produce with sufficient strength. Above all the connection point, which is expediently designed as a thread, with the metallic one Free jet switch arm heavily used.

Die Erfindung betrifft derartige Schalter und beseitigt die Kerbempfindlichkeit der Düsenkörper dadurch, daß beim Pressen des Düsenkörpers an die der Kerbwirkung im Betrieb ausgesetzten Stellen Einsätze aus kerbunempfindlichem Isolierstoff, der sich mit dem organischen Glas gut verbindet, vorgesehen werden.The invention relates to such switches and eliminates notch sensitivity the nozzle body in that when the nozzle body is pressed against the notch effect Inserts made of insensitive insulation material that are exposed during operation combines well with the organic glass.

Die Zeichnung zeigt einen derartigen Düsenkörper i mit dem Einsatz a. Als Werkstoff für den Düsenkörper kommen mechanisch feste organische Isolierstoffe in Betracht, vor allem Hartgewebe, Hartpapier, aber auch Hartgummi. :Metalle sind infolge schlechter Bindung und vor allem stark verschiedener Ausdehnungskoeffizienten ungeeignet. Keramische Stoffe besitzen nicht die hinreichende Festigkeit und verbinden sich schlecht mit dem Werkstoff des Düsenkörpers. Bei Verwendung von härtenden Schichtstoffen auf Phenolharz- oder Harnstoffharzbasis kann der Einsatzkörper vor der endgültigen Aushärtung in die Form eingesetzt und durch die beim Preßvorgang erforderliche Wärme endgültig gehärtet werden. Zweckmäßig ist ferner die Verwendung von Schichtstoffen, die durch einen mit dem verwendeten Düsenkörperwerkstoff verwandten Werkstoff getränkt sind, da hierdurch eine besonders innige Verbindung des Düsenkörperwerkstoffes mit dem Einsatz erreicht wird.The drawing shows such a nozzle body i with the insert a. Mechanically strong organic insulating materials are used as the material for the nozzle body into consideration, especially hard tissue, hard paper, but also hard rubber. : Metals are as a result of poor bonding and, above all, very different expansion coefficients not suitable. Ceramic materials do not have sufficient strength and bond badly with the material of the nozzle body. When using hardening laminates on a phenolic resin or urea resin base, the insert body can be used before the final Curing used in the mold and due to the heat required during the pressing process finally hardened. It is also advisable to use laminates, which are impregnated by a material related to the nozzle body material used are, as this creates a particularly intimate connection between the nozzle body material and the mission is achieved.

Claims (1)

PATENTANSPRÜCHE: i. Isolierkörper für Schaltkammern von Hochspannungsschaltern, insbesondere Düsenkörper für Freistrahl-Druckgasschalter, aus organischem glasartigem Werkstoff, vorzugsweise aus Polyakrylsäurederivaten, dadurch gekennzeichnet, daß an den der Kerbwirkung ausgesetzten Stellen, insbesondere an Traggewindestellen, Einsätze aus nicht kerbempfindlichem organischem Stoff vorgesehen sind. Isolierkörper nach Anspruch i, dadurch gekennzeichnet, daß die Einsatzkörper aus organischen Schichtstoffen, z. B. Hartgewebe, bestehen. 3. Isolierkörper nach Anspruch i und a, dadurch gekennzeichnet, daß der Bindestoff des Schichtstoffes mit dem Werkstoff des Isolierkörpers eng verwandt ist.PATENT CLAIMS: i. Insulating bodies for switching chambers of high-voltage switches, in particular nozzle bodies for free-jet compressed gas switches, made of organic glass-like Material, preferably made of polyacrylic acid derivatives, characterized in that at the points exposed to the notch effect, especially at the load-bearing thread points, Inserts made of non-notch-sensitive organic material are provided. Insulating body according to claim i, characterized in that the insert body made of organic laminates, z. B. hard tissue exist. 3. Insulating body according to claim i and a, characterized in that that the binding material of the laminate is closely related to the material of the insulating body is.
DEA18239D 1942-03-04 1942-03-05 Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches Expired DE918213C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA18239D DE918213C (en) 1942-03-04 1942-03-05 Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235650X 1942-03-04
DEA18239D DE918213C (en) 1942-03-04 1942-03-05 Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches

Publications (1)

Publication Number Publication Date
DE918213C true DE918213C (en) 1954-09-20

Family

ID=25766097

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA18239D Expired DE918213C (en) 1942-03-04 1942-03-05 Insulating body for switching chambers of high-voltage switches, especially nozzle bodies for free-jet compressed gas switches

Country Status (1)

Country Link
DE (1) DE918213C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028200B (en) * 1955-09-06 1958-04-17 Licentia Gmbh Pressurized gas switch with a switching chamber made of organic insulating material
DE1112162B (en) * 1959-03-14 1961-08-03 Rosenthal Isolatoren Gmbh Hollow insulator for compressed air switch
EP0046174A1 (en) * 1980-08-14 1982-02-24 Licentia Patent-Verwaltungs-GmbH Compressed-gas puffer-type circuit interrupter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028200B (en) * 1955-09-06 1958-04-17 Licentia Gmbh Pressurized gas switch with a switching chamber made of organic insulating material
DE1112162B (en) * 1959-03-14 1961-08-03 Rosenthal Isolatoren Gmbh Hollow insulator for compressed air switch
EP0046174A1 (en) * 1980-08-14 1982-02-24 Licentia Patent-Verwaltungs-GmbH Compressed-gas puffer-type circuit interrupter

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