DE812567C - Differential extinguishing chamber - Google Patents

Differential extinguishing chamber

Info

Publication number
DE812567C
DE812567C DEP19452D DEP0019452D DE812567C DE 812567 C DE812567 C DE 812567C DE P19452 D DEP19452 D DE P19452D DE P0019452 D DEP0019452 D DE P0019452D DE 812567 C DE812567 C DE 812567C
Authority
DE
Germany
Prior art keywords
chamber
differential
valve
extinguishing chamber
piston
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
DEP19452D
Other languages
German (de)
Inventor
Oskar Becker
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner 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 Voigt and Haeffner AG filed Critical Voigt and Haeffner AG
Priority to DEP19452D priority Critical patent/DE812567C/en
Application granted granted Critical
Publication of DE812567C publication Critical patent/DE812567C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/94Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc
    • H01H33/96Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc the arc-extinguishing fluid being liquid, e.g. oil

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Circuit Breakers (AREA)

Description

Bei Löschkammerschaltern mit einem in der Löschkammer eingebauten Differentialpumpkolben zur Erzeugung einer Flüssigkeitsströmung zum Löschen des beim Abschaltvorgang gezogenen Lichtbogens bleibt die Löschkammer während des Löschvorganges allseitig geschlossen, und erst nach Beendigung des Löschvorgangs wird eine Auslaßöffnung durch den nach oben in die Ausschaltstellung gehenden Schaltstift freigelegt. Um die Zeitdauer für das jedesmalige .Wiederauffüllen der Löschkammer nach einer Abschaltung zu verringern, wurde bereits vorgeschlagen, in der unteren Löschkammerwand ein bei der Druckentlastung in der Kammer sich selbsttätig öffnendes Ventil zwischen dem Innen- und Außenraum der Löschkammer vorzusehen. Unter dem Druck der außerhalb der Löschkammer stehenden Flüssigkeitssäule wird nach dem Löschvorgang, sobald die durch den Lichtbogen erzeugten Druckgase durch die obere, von dem Schaltstift freigelegte Kammeröffnung entweichen, reine Flüssigkeit in die Kammer einströmen. Je schneller dieses Einströmen in die Kammer erfolgt, um so schneller ist der Schalter für eine Wiedereinschaltung bereit.With extinguishing chamber switches with one built into the extinguishing chamber Differential pumping piston for generating a flow of liquid to extinguish the When the arc drawn is switched off, the arcing chamber remains during the extinguishing process closed on all sides, and an outlet opening is only opened after the extinguishing process has been completed exposed by the switch pin going up to the switch-off position. Around the length of time for each time the arcing chamber is refilled after it has been switched off to reduce, it has already been suggested that one should be installed in the lower wall of the arcing chamber the pressure relief in the chamber automatically opening valve between the Provide for the interior and exterior of the extinguishing chamber. Under pressure from outside the Extinguishing chamber standing liquid column is after the extinguishing process as soon as the through the arc generated compressed gases through the upper exposed by the switch pin Chamber opening escape, pure liquid flows into the chamber. The faster this inflow into the chamber occurs, the faster the switch is for one Reclosing ready.

Dieses Einströmen wird wesentlich begünstigt, wenn sich gemäß der Erfindung das nach dem Abschaltvorgang sich öffnende Ventil unmittelbar an dem durch den Innendruck in 'der Kammer bewegten Differentialkolben befindet. Hierdurch kann nicht nur die Schaltflüssigkeit schneller nachströmen, es können auch die Kammerabmessungen bei gleichbleibender Wirkung kleiner gehalten werden.This influx is significantly favored if, according to the Invention of the valve that opens after the shutdown process directly on the through the internal pressure is located in 'the chamber moving differential piston. This can Not only does the switching fluid flow faster, the chamber dimensions can also can be kept smaller with the same effect.

In der Abbildung ist eine der möglichen Ausführungsformen dargestellt. i ist das Schaltergehäuse, 2 die Kammer, in der sich die Kontaktstelle 3 mit dem Schaltstift 4 befindet. 5 ist der Differentialkolben, der eine solche Form besitzt, daß an der kleinen Fläche das Ventil 6 angebracht werden kann. Der Pumpraum 7 steht über die Kanäle 8 mit der Ringdüse 9 in Verbindung. io-ist die Kolbendruckfeder, die den Kolben 5 nach Beendigung des Schaltvorganges in seine ursprüngliche Lage zurückführt. i i ist die Druckfeder des Ventils 6, die wesentlich schwächer gehalten ist als die Feder io und die das Ventil 6 zuschließt.One of the possible embodiments is shown in the figure. i is the switch housing, 2 the chamber in which the contact point 3 with the Switch pin 4 is located. 5 is the differential piston, which has such a shape as that the valve 6 can be attached to the small area. The pump chamber 7 is up via the channels 8 with the ring nozzle 9 in connection. io-is the piston compression spring, which returns the piston 5 to its original position after the switching process has ended returns. i i is the compression spring of the valve 6, which is kept much weaker is as the spring io and which the valve 6 closes.

Wird die Kontaktunterbrechung eingeleitet, so verdampft ein Teil der Flüssigkeiten im Kammerraum 12. Der Druckkolben 5 wird unter Druck gesetzt und bewegt sich abwärts, sobald der Schaltstift 4 die bffnung der Ringdüse 9 freigegeben hat. Die Flüssigkeit wird nun aus dem Kolbenraum 7' über die Kanäle 8, über den Lichtbogen hinweg, in die Kammer 12 gedrückt. Nach Löschen des Lichtbogens erfolgt der Druckausgleich zwischen dem Innenraum der Löschkammer und dem Schalterraum durch die Öffnung 13. Gleichzeitig drückt die Feder io den Kolben 5 in seine ursprüngliche Lage, wobei sich das Ventil 6 öffnet und das schnelle Zufließen frischer Schaltflüssigkeit gewährleistet.If the contact interruption is initiated, some of the evaporates Liquids in the chamber space 12. The pressure piston 5 is pressurized and moved downwards as soon as the switching pin 4 has released the opening of the ring nozzle 9. The liquid is now out of the piston chamber 7 'via the channels 8, via the arc away, pressed into the chamber 12. After the arc has been extinguished, the pressure is equalized between the interior of the arcing chamber and the switch room through the opening 13. At the same time, the spring presses the piston 5 into its original position, whereby the valve 6 opens and ensures the rapid inflow of fresh switching fluid.

Claims (1)

PATENTANSPRUCH: Differentiallöschkammer mit einem bei der Druckentlastung nach der Lichtbogenlöschung in der Kammer sich öffnenden Ventil, das eine Verbindung zwischen dem Innen- und Außenraum der Kammer herstellt, dadurch gekennzeichnet, daß sich das nach dem Abschaltvorgang öffnende Ventil unmittelbar an dem durch den Innendruck in der Kammer bewegten Differentialkolben befindet. PATENT CLAIM: Differential quenching chamber with a valve which opens when the pressure is released after arc quenching in the chamber and which establishes a connection between the interior and exterior of the chamber, characterized in that the valve that opens after the shutdown process is located directly on the valve caused by the internal pressure in the Chamber moving differential piston is located.
DEP19452D 1948-10-24 1948-10-24 Differential extinguishing chamber Expired DE812567C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP19452D DE812567C (en) 1948-10-24 1948-10-24 Differential extinguishing chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP19452D DE812567C (en) 1948-10-24 1948-10-24 Differential extinguishing chamber

Publications (1)

Publication Number Publication Date
DE812567C true DE812567C (en) 1951-09-03

Family

ID=7367450

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP19452D Expired DE812567C (en) 1948-10-24 1948-10-24 Differential extinguishing chamber

Country Status (1)

Country Link
DE (1) DE812567C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188163B (en) * 1958-01-28 1965-03-04 Ckd Praha Narodni Podnik Electric fluid switch, especially for short breaks, with differential piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188163B (en) * 1958-01-28 1965-03-04 Ckd Praha Narodni Podnik Electric fluid switch, especially for short breaks, with differential piston

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