DE504736C - Electrical switch, the contacts of which are blown and moved by compressed gas - Google Patents

Electrical switch, the contacts of which are blown and moved by compressed gas

Info

Publication number
DE504736C
DE504736C DEA55413D DEA0055413D DE504736C DE 504736 C DE504736 C DE 504736C DE A55413 D DEA55413 D DE A55413D DE A0055413 D DEA0055413 D DE A0055413D DE 504736 C DE504736 C DE 504736C
Authority
DE
Germany
Prior art keywords
compressed gas
contacts
moved
piston
electrical 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
DEA55413D
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.)
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.)
Publication date
Priority to DEA55413D priority Critical patent/DE504736C/en
Application granted granted Critical
Publication of DE504736C publication Critical patent/DE504736C/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
    • H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
    • H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
    • H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of air or gas

Landscapes

  • Circuit Breakers (AREA)

Description

Elektrischer Schalter, dessen Kontakte durch Druckgas beblasen und bewegt werden Bei elektrischen Schaltern, hei denen sowohl zur Kühlung der Kontakte. und Löschung des Lichtbogens als auch zur Bewegung der Kontakte Druckgas benutzt wird, steuert man zweckmäßig die Zuleitung des Druckgases zu den beiden, den verschiedenen Zwecken dienenden Einrichtungen durch ein einziges Ventil. Während das Beblasen lind Bewegen gleichzeitig beginnen muß, ist es nötig, das Behlasen der Kontakte über die Dauer der Bewegung hinaus auszudehnen und den Druckgasstrom auch noch kurzzeitig nach Wiederkehr der Spannung bestehen zu lassen, um die Funkenstrecke von Ionen und Schaltgasen zu reinigen. Andererseits ist es auch nötig, die Zuleitung des Gases zu dem bewegenden Mechanismus aber schon vor Erreichung der Endlage zu unterbrechen, um die bewegten Teile sanft auslaufen zu lassen.Electrical switch whose contacts are blown by compressed gas and be moved with electrical switches, both for cooling the contacts. and extinguishing the arc as well as pressurized gas to move the contacts the supply of the compressed gas to the two, the different ones, is expediently controlled Purpose-serving facilities through a single valve. While blowing If moving must begin at the same time, it is necessary to blow the contacts to expand beyond the duration of the movement and also briefly the flow of pressurized gas after recovery of the voltage to allow the spark gap of ions to exist and to clean switching gases. On the other hand, it is also necessary to supply the gas to interrupt the moving mechanism before reaching the end position, to let the moving parts run down gently.

Erfindungsgemäß verbindet man mit dem den Kontakt bewegenden Kolben eine Einrichtung, die in einem bestimmten Punkte des Kolbenweges den Zutritt des Druckgases zu dem zugehörigen Zylinder sperrt. Eine solche Anordnung ist in der Zeichnung dargestellt. a und b sind die Schalterkontakte. Auf ihre Isolation gegen die übrigen Schalterteile ist in der Zeichnung keine Rücksicht genommen. Man kann sich vorstellen, daß im wesentlichen alles - mit Ausnahme der Kontakte - aus. Isolierstoff besteht. Durch das Rohr c wird über ein nicht gezeichnetes Ventil dem die Kontakte umgebenden Raum d Druckgas zugeführt. Nachdem es diesen erfüllthat, strömt es in den Raum e weiter und bewegt durch seinen Druck auf den Kolben f diesen in dein Zylinder ä nach unten. Der bewegliche Kontakt b ist nach unten so weit verlängert bzw. die ihn tragende Kölbenstange ist derartig verdickt, daß diese Verdickung im Verlauf der Abschaltbevvegung eine Verengung am oberen Teil des Zylinders abschließt und dadurch den Zutritt der Druckluft zu diesem sperrt. Hir2rdurch wird erreicht, daß der Kolben den Rest des Weges nur unter dem Einfluß des im Zylinder eingeschlossenen und expandierenden Gases mit abnehmender Geschwindigkeit zurücklegt.According to the invention one connects with the piston moving the contact a device that allows the access of the piston at a certain point in the piston path Locks compressed gas to the associated cylinder. Such an arrangement is in the Drawing shown. a and b are the switch contacts. On their isolation from the other parts of the switch are not taken into account in the drawing. One can imagine that essentially everything - with the exception of the contacts - is made up. Insulating material consists. The contacts are through the tube c via a valve (not shown) surrounding space d supplied pressurized gas. After it has fulfilled this, it flows in the space e further and moves it into your by its pressure on the piston f Cylinder ä downwards. The movable contact b is extended so far downwards or the piston rod carrying it is so thickened that this thickening in the The course of the shutdown movement closes a narrowing at the upper part of the cylinder and thereby blocks the access of the compressed air to it. Hir2rdurch is achieved that the piston the rest of the way only under the influence of what is trapped in the cylinder and expanding gas with decreasing speed.

Claims (2)

PATENTANSPRÜCHE: i. Elektrischer Schalter, dessen Kontakte durch Druckgas gleichzeitig beblasen und bewegt werden und dem (las Druckgas für beide Zwecke durch ein gemeinsames Ventil zugeführt wird, gekennzeichnet durch eine zusätzliche mit dem den Kontakt bewegenden Kolben verbundene Einrichtung, die bei geöffnetem Druckgasventil und unverminderter Blasung den Druckgaszutritt zu der Kontaktbewegungsvorrichtung unterbricht, sobald der Kontakt einen bestimmten Teil des Schaltweges zurückgelegt hat. PATENT CLAIMS: i. Electrical switch, its contacts by pressurized gas simultaneously blown and moved and the (read compressed gas through for both purposes a common valve is supplied, characterized by an additional with device connected to the piston moving the contact, which when the compressed gas valve is open and unabated blowing the pressurized gas admission to the contact moving device interrupts as soon as the contact has covered a certain part of the switching path Has. 2. Schalter nach Anspruch i, dadurch gekennzeichnet, daß an der Kolbenstange eine Verdickung angebracht ist, welche elen Zutritt des Druckgases in den zugehörigen Druckzylinder vor dem Erreichen der Endlage des Kolbens sperrt.2. Switch according to claim i, characterized in that on the piston rod a thickening is attached, which elen access of the compressed gas in the associated Locks pressure cylinder before reaching the end position of the piston.
DEA55413D 1928-09-19 Electrical switch, the contacts of which are blown and moved by compressed gas Expired DE504736C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA55413D DE504736C (en) 1928-09-19 Electrical switch, the contacts of which are blown and moved by compressed gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA55413D DE504736C (en) 1928-09-19 Electrical switch, the contacts of which are blown and moved by compressed gas
DE319277X 1928-09-19

Publications (1)

Publication Number Publication Date
DE504736C true DE504736C (en) 1930-08-07

Family

ID=25798717

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA55413D Expired DE504736C (en) 1928-09-19 Electrical switch, the contacts of which are blown and moved by compressed gas

Country Status (1)

Country Link
DE (1) DE504736C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008384B (en) * 1953-12-10 1957-05-16 Gen Electric Gas pressure switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008384B (en) * 1953-12-10 1957-05-16 Gen Electric Gas pressure switch

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