DE573779C - Electric switch - Google Patents

Electric switch

Info

Publication number
DE573779C
DE573779C DEM111984D DEM0111984D DE573779C DE 573779 C DE573779 C DE 573779C DE M111984 D DEM111984 D DE M111984D DE M0111984 D DEM0111984 D DE M0111984D DE 573779 C DE573779 C DE 573779C
Authority
DE
Germany
Prior art keywords
switching chamber
arc
extinguishing
switch according
electric switch
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
DEM111984D
Other languages
German (de)
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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.)
Publication date
Priority to DEM111984D priority Critical patent/DE573779C/en
Application granted granted Critical
Publication of DE573779C publication Critical patent/DE573779C/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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/75—Liquid-break switches, e.g. oil-break
    • 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
    • H01H33/88—Switches 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
    • H01H33/90—Switches 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 by or in conjunction with the contact-operating mechanism
    • H01H33/92—Switches 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 by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being liquid, e.g. oil

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Jet Pumps And Other Pumps (AREA)

Description

Elektrischer Schalter In dem Patent 567 077 ist ein elektrischer Schalter für große Leistungen beschrieben, bei dem der Abschaltlichtbogen in einer nicht brennbaren Flüssigkeit gebildet und in Luft gezogen und gleichzeitig in den in Luft brennenden Lichtbogen ein vom Lichtbogen selbst hervorgerufener Strahl der Löschflüssigkeit gespritzt wird.Electrical Switch In patent 567 077 is an electrical switch described for high powers, in which the cut-off arc in a not flammable liquid is formed and drawn into air and simultaneously in air burning arc is a jet of extinguishing liquid caused by the arc itself is injected.

In einem Ausführungsbeispiel der Haupterfindung ist gezeigt, daß man die Löschflüssigkeit dadurch in den Lichtbogen spritzen kann, daß man die durch den Lichtbogen. entstehenden Dämpfe ,der Löschflüssigkeit an den Enden von Saugrohren vorbeistreichen läßt, die die Löschflüssigkeit nach Art eines Injektors ansaugen. An Stelle dieser Einrichtung kann erfindungsgemäß in ähnlicher Weise, fixe es bei ölschaltern an sich bereits bekannt ist, die Löschflüssigkeit durch Kanäle, die die Löschstelle des Lichtbogens mit der Schaltkammer verbinden, durch den in der Schaltkammer bei der Kontakttrennung entstehenden Druck an die Löschstelle befördert werden.In one embodiment of the main invention it is shown that one the extinguishing liquid can be injected into the arc by the the arc. resulting vapors, the extinguishing liquid at the ends of suction pipes can sweep past, which suck in the extinguishing liquid like an injector. Instead of this device, according to the invention, in a similar way, fix it at oil switches is already known per se, the extinguishing liquid through channels that Connect the arc extinguishing point to the switching chamber through the Switching chamber, the pressure generated by the contact separation is conveyed to the extinguishing point will.

Eine Ausführungsform einer solchen Anordnung ist in der Abbildung dargestellt.One embodiment of such an arrangement is shown in the figure shown.

In dem Vorratsgefäß c befindet sich die Schaltkammer b. Ihre Wand :enthält einen Kanal i, der- mit dem einen Ende (unten, dikkeren Ende) in der Schaltkammer mündet, mit dem anderen (oben, engeren Ende) neben dem Wege des beweglichen Schaltstückes e und daher in unmittelbarer Nähe des Lichtbogens sich befindet. Wird das bewegliche Schaltstück e aus den festen Schaltstücken f nach oben gezogen, so entwickelt sich in der Schaltkammer ein hoher Druck, der die Löschflüssigkeit in dem Kanal i, dessen Querschnittzweckmäßig von der Schaltkammer zur Löschstelle immer kleiner wird, hochdrückt; gleichzeitig schießt der Lichtbogen hoch und saugt am oberen Ende des Kanals i. Zur Verbindung des Vorratsgefäßes -mit der Schaltkammer dient eine enge öffnungn, die so bemessen ist, daß sie den Druck in der Schaltkammer nicht wesentlich verringert. Der Zwischendeckel zwischen Vorratsgefäß und oberem Raum o, in dem die Dampfentwicklung der Löschflüssigkeit und die Kondensation des Dampfes vor sich geht, kann fortfallen. Zur Verhinderung eines Austretens von Dampf aus dem Schalter ist der Fülltrichter L durch eine ventilartige Klappep abgeschlossen, so daß Wasser eingefüllt werden, aber kein Dampf herausdringen kann.The switching chamber b is located in the storage vessel c. Your wall : contains a channel i, one end of which (below, thicker end) is in the switching chamber opens, with the other (above, narrower end) next to the path of the movable contact piece e and is therefore in the immediate vicinity of the arc. Will the movable Contact piece e pulled up out of the fixed contact pieces f, so it develops in the switching chamber a high pressure, which the extinguishing liquid in the channel i, whose Cross-section expediently from the switching chamber to the extinguishing point becomes smaller and smaller, pushes up; at the same time the arc shoots up and sucks at the upper end of the channel i. A narrow opening is used to connect the storage vessel to the switching chamber. which is dimensioned so that it does not significantly reduce the pressure in the switching chamber. The intermediate lid between the storage vessel and the upper space o, in which the steam is generated the extinguishing liquid and the condensation of the vapor is going on, can be omitted. The filling funnel is used to prevent steam from escaping from the switch L closed by a valve-like Klappep, so that water can be poured in, but no steam can escape.

Claims (3)

PATENTANSPRÜCHE: i. Elektrischer Schalter nach Patent 567 077, dadurch gekennzeichnet, daß die Löschflüssigkeit durch Kanäle, die die Löschstelle des Lichtbogens mit der Kammer verbinden, durch den in der Schaltkammer durch den Lichtbogen gebildeten Druck an die Löschstelle befördert wird. PATENT CLAIMS: i. Electrical switch according to patent 567 077, thereby characterized in that the extinguishing liquid through channels that the extinguishing point of the arc connect to the chamber through the arc formed in the switching chamber Pressure is conveyed to the extinguishing point. 2. Schalter nach Anspruch i, dadurch gekennzeichnet, daß die Schaltkammer (b) mit dem Vorratsgefäß (c) nur durch eine enge Öffnung (n) verbunden ist. 2. Switch according to claim i, characterized in that that the switching chamber (b) with the storage vessel (c) only through a narrow opening (n) connected is. 3. Schalter nach Anspruch i und 2, dadurch gekennzeichnet, daß der obere Raum (o) mit einem Rückschlagventil (p) versehen ist.3. Switch according to claim i and 2, characterized in that the upper space (o) is provided with a check valve (p).
DEM111984D 1929-06-12 Electric switch Expired DE573779C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM111984D DE573779C (en) 1929-06-12 Electric switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM111984D DE573779C (en) 1929-06-12 Electric switch
DE697186X 1929-06-12

Publications (1)

Publication Number Publication Date
DE573779C true DE573779C (en) 1933-04-05

Family

ID=25946449

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM111984D Expired DE573779C (en) 1929-06-12 Electric switch

Country Status (1)

Country Link
DE (1) DE573779C (en)

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