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DE704306C - Pressurized gas switch with insulating nozzle - Google Patents

Pressurized gas switch with insulating nozzle

Info

Publication number
DE704306C
DE704306C DEA91199D DEA0091199D DE704306C DE 704306 C DE704306 C DE 704306C DE A91199 D DEA91199 D DE A91199D DE A0091199 D DEA0091199 D DE A0091199D DE 704306 C DE704306 C DE 704306C
Authority
DE
Germany
Prior art keywords
insulating nozzle
insulating
pressurized gas
gas switch
nozzle
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
DEA91199D
Other languages
German (de)
Inventor
Otto Mayr
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA91199D priority Critical patent/DE704306C/en
Application granted granted Critical
Publication of DE704306C publication Critical patent/DE704306C/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
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor

Landscapes

  • Circuit Breakers (AREA)

Description

Druckgasschalter mit Isolierdüse Es ist bereits vorgeschlagen worden, bei elektrischen Druckgasdüsenschaltern Löschdüsen aus Isolierstoff zu verwenden. Diese Ausbildung ermöglicht eine Herabsetzung des Druckgasverbrauches der Schalter bei den Abschaltungen und ist insbesondere bei Druckgasschaltern für höhere Betriebsspannung von erheblicher Bedeutung.Compressed gas switch with insulating nozzle It has already been proposed Use extinguishing nozzles made of insulating material for electrical pressure gas nozzle switches. This training enables a reduction in the compressed gas consumption of the switch during shutdowns and is particularly important for pressurized gas switches for higher operating voltages of considerable importance.

Dieser Vorteil geht jedoch wieder verloren, wenn durch den Lichtbogen bei Berührung mit den Wandungen der Isolierdüse leitende Rückstände entstehen .oder die Isolierdüse unter den Temperatureinflüssen springt. Die leitenden Kohlebahnen wirken nämlich als Zwischenelektroden und können unter Umständen dazu führen, daß sich der Lichtbogen der Einwirkung der Druckgasbeblasung zum mindesten teilweise entziehen kann, wodurch natürlich die Schaltleistung des Schalters herabgesetzt wird.However, this advantage is lost again when caused by the arc when it comes into contact with the walls of the insulating nozzle, conductive residues are formed. or the insulating nozzle jumps under the influence of temperature. The leading coal railways namely act as intermediate electrodes and can under certain circumstances lead to the arc of the action of the pressurized gas blowing is at least partially can withdraw, which of course reduces the switching capacity of the switch will.

Die Erfindung vermeidet diese Nachteile dadurch, daß als Materialien für die Isolierdüsen von Druckgasschaltern solche Stoffe dienen, die unter der Einwirkung des Lichtbogens keine wesentliche Verringerung ihres Oberflächenwiderstandes erfahren.The invention avoids these disadvantages in that as materials those substances are used for the insulating nozzles of gas pressure switches that are exposed to the action of the arc do not experience any significant reduction in their surface resistance.

Als besonders vorteilhaft haben sich @organische Stoffe, wie Hartgummi oder Fiber, erwiesen, die unter dem Einfluß des Lichtbogens an ihrer Oberfläche rückstandsfrei vergasen und sich durch die entstehenden Gase und Dämpfe nach dem Leidenfrostschen Phänomen vor der weiteren Lichtbogeneinwirkung selbst schützen.Organic substances such as hard rubber have proven to be particularly advantageous or fiber, proven to be under the influence of the arc on its surface Gasify residue-free and through the resulting gases and vapors after Protect the Leidenfrost phenomenon yourself from further arc effects.

Neben diesen Stoffen kann man mit Vorteil auch solche anorganischen Isolierstoffe, wie Quarz oder Magnesit, verwenden, die starken Temperaturschwankungen gewachsen sind.In addition to these substances, inorganic substances can also be used with advantage Use insulating materials such as quartz or magnesite that can withstand strong temperature fluctuations have grown.

Claims (1)

PATENTANSPRÜCHE: r. Druckgasschalter, insbesondere für hohe Spannungen,: bei dem der Abschaltlichtbogen durch eine vom Druckgas durchströmte, sich zunächst verengende und dann erweiternde Düse aus Isolierstoff gezogen wird, dadurch gekennzeichnet, daß die Isolierdüse aus Isolierstoffen besteht, die unter der Einwirkung des Lichtbogens keine wesentliche Verringerung ihres Oberflächemviderstandes erfahren. z. Druckgasschalter nach Anspruch r, dadurch gekennzeichnet, daß die Isolierdüse aus organischen Stoffen besteht, die unter dem Einfluß des Lichtbogens praktisch, ohne leitende Rückstände zu hinterlassen, verdampfen. 3. Druckgasschalter nach Anspruch z. dadurch gekennzeichnet, daß die Isolierdüse aus Hartgummi besteht. 4. Druckgasschalter nach Anspruch i, dadurch gekennzeichnet, daß die Isolierdüse aus anorganischen Stoffen besteht, die gegen Temperaturwechsel unempfindlich sind. , 5. Druckgasschalter nach Anspruch 4, dadurch gekennzeichnet, daß die Isolierdüse aus Quarz oder Magnesit besteht.PATENT CLAIMS: r. Compressed gas switch, especially for high voltages: in which the cut-off arc flowed through a pressurized gas, initially narrowing and then widening nozzle made of insulating material, characterized in that that the insulating nozzle consists of insulating materials that are exposed to the action of the arc experience no significant reduction in their surface resistance. z. Gas pressure switch according to claim r, characterized in that the insulating nozzle is made of organic substances consists of that under the influence of the arc practically without conducting Leaving residue will evaporate. 3. Compressed gas switch according to claim z. through this characterized in that the insulating nozzle is made of hard rubber. 4. Pressurized gas switch to Claim i, characterized in that the insulating nozzle is made of inorganic substances that are insensitive to temperature changes. , 5. Pressurized gas switch Claim 4, characterized in that the insulating nozzle is made of quartz or magnesite consists.
DEA91199D 1934-01-06 1934-01-06 Pressurized gas switch with insulating nozzle Expired DE704306C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA91199D DE704306C (en) 1934-01-06 1934-01-06 Pressurized gas switch with insulating nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA91199D DE704306C (en) 1934-01-06 1934-01-06 Pressurized gas switch with insulating nozzle

Publications (1)

Publication Number Publication Date
DE704306C true DE704306C (en) 1941-03-27

Family

ID=6950945

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA91199D Expired DE704306C (en) 1934-01-06 1934-01-06 Pressurized gas switch with insulating nozzle

Country Status (1)

Country Link
DE (1) DE704306C (en)

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