DE945043C - Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position - Google Patents

Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position

Info

Publication number
DE945043C
DE945043C DEL14610A DEL0014610A DE945043C DE 945043 C DE945043 C DE 945043C DE L14610 A DEL14610 A DE L14610A DE L0014610 A DEL0014610 A DE L0014610A DE 945043 C DE945043 C DE 945043C
Authority
DE
Germany
Prior art keywords
switch
compressed gas
locked
fixed
drive
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
DEL14610A
Other languages
German (de)
Inventor
Dr-Ing August Hochrainer
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL14610A priority Critical patent/DE945043C/en
Application granted granted Critical
Publication of DE945043C publication Critical patent/DE945043C/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
    • H01H33/02Details
    • H01H33/28Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Landscapes

  • Switches Operated By Changes In Physical Conditions (AREA)

Description

Es sind Freistrahl-Druckgasschalter mit feststehenden Löschköpfen vorgeschlagen - worden, deren bewegliche, mit einem Kalben versehene Schaltstifte beim Ausschalten vom Druckgas gegen die Kraft einer Rückstellfeder bewegt und in der Ausschaltstellung innerhalb der Löschköpfe verriegelt werden. Diese Schalter haben den Vorteil, daß man bei genügend großer Entfernung der verriegelten Schaltstifte voneinander eine ausreichende Spannungstrennstrecke erhält, so daß ein zusätzlicher Lufttrenner am Schalter entbehrt werden kann.They are free jet compressed gas switches with fixed extinguishing heads have been proposed - their movable, calved switch pins when switching off the compressed gas moves against the force of a return spring and in the switch-off position within the erase heads. These switches have the advantage that if the distance between the locked switch pins is sufficiently large receives a sufficient voltage separation distance from each other, so that an additional Air separator on the switch can be dispensed with.

Die Erfindung betrifft eine Weiterbildung eines solchen Schalters. Durch das während des Ausschaltvorganges auf den Antriebskolben wirkende Druckgas wird-dem Schaltstift eine große Beschleunigung erteilt, die sich am Ende des Ausschaltweges als hohe Rückstellkraft der dabei noch stärker gespannten Feder auswirkt. Wird nun am Ende des Ausschaltweges sofort eine Verriegelung des Schaltstiftes vorgenommen, so wirkt diese erhöhte Rückstellkraft unter Umständen zerstörend auf den Verriegelungsmechanismus.The invention relates to a further development of such a switch. Due to the pressurized gas acting on the drive piston during the switch-off process - the switching pin is given a great acceleration, which is at the end of the switch-off path acts as a high restoring force of the even more strongly tensioned spring. Will now The switching pin is immediately locked at the end of the switch-off path, this increased restoring force may have a destructive effect on the locking mechanism.

Um diesem Mangel abzuhelfen, werden gemäß vorliegender Erfindung das Antriebsdruckgas und die Verriegelungsvorrichtung derart gesteuert, daß der Antriebskolben der Schaltstifte kurz nach dem Abklingen der Ausschaltbewegung vom Antriebsdruckgas unter Druck gehalten und erst dann verriegelt wird. Auf diese Weise werden - stärkere mechanische Beanspruchungen der Verriegelungsvorrichtung; die entweder elektrisch oder pneumatisch betätigt wird, vermieden.In order to remedy this shortcoming, the present invention Drive pressurized gas and the locking device controlled so that the drive piston of the switching pins shortly after the disconnection movement from the drive compressed gas has subsided is kept under pressure and only then locked. That way they become - stronger mechanical stresses on the locking device; which are either electric or pneumatically operated, avoided.

Zum besseren Verständnis der '-Erfindung ist in der Zeichnung ein Ausführungsbeispiel dargestellt. In Abb. i stellt i den Antriebszylinder dar, in dem der mit dem Schaltstift z verbundene Antriebskolben 3 gleitet. Der Antriebskolben steht unter dem Druck .einer kräftigen Rückstellfeder q., die nach beendeter Ausschaltung den Schaltstift 6 in die Einschaltstellung zurückführt und zugleich den notwendigen Kontaktdruck abgibt. In der Zeichnung sind nur die zum Verständnis der Erfindung notwendigen Teile gezeigt. Die Beaufschlagung des Antriebskolbens erfolgt über die Druckgasleitung 5. Mit 6 ist die Verriegelungsvorri°chtung bezeichnet, deren Kolben durch die beiden Leitungen 7 und 8 mit Druckgas beaufschlagf wird.For a better understanding of the 'invention is in the drawing Embodiment shown. In Fig. I i represents the drive cylinder, in which the drive piston 3 connected to the switching pin z slides. The drive piston is under the pressure of a powerful return spring q the switching pin 6 returns to the on position and at the same time the necessary Releases contact pressure. In the drawing are only those for understanding the invention necessary parts shown. The actuation of the drive piston takes place via the Pressurized gas line 5. The locking device is denoted by 6, its piston pressurized gas is applied through the two lines 7 and 8.

Aus Abb. z geht hervor, wie die kückstellkraft R in Abhängigkeit von der Zeit t beim Ausschaltvorgang anwächst. 'Nach dem Abklingen des Ausschaltvorganges behält die Rückstellkraft einen konstanten Wert, solange der Kolben in der- erreichten Lage verharrt. Die Steuerung des Antriebsdruckgases durch die Leitung 5 und der Verriegelungsvorrichtung wird nun so getroffen, daß der Zylinderraum zunächst so lange unter Druck stehenbleibt, bis die Ausschaltbewegung abgeklungen ist. Erst im Zeitpunkte wird die Verriegelungsvorrichtung 6 eingeschaltet., Eine übermäßige Beanspruchung der Verriegelungsvorrichtung ist nun nicht mehr zu befürchten.From Fig. Z it can be seen how the restoring force R depends on the time t increases during the switch-off process. '' After the switch-off process has subsided the restoring force maintains a constant value as long as the piston has reached the Situation persists. The control of the drive pressure gas through line 5 and the Locking device is now made so that the cylinder space initially so remains under pressure for a long time until the switch-off movement has subsided. First at the time the locking device 6 is switched on., An excessive Stress on the locking device is no longer to be feared.

Claims (1)

PATENTANSPRUCH: Freistrahl-Druckgasschalter mit feststehenden Löschköpfen, deren bewegliche, mit einem Kolben versehene Schaltstifte beim Ausschalten -vom Druckgas gegen die Kraft einer Rückstellfeder bewegt und in der Ausschaltstellung innerhalb der Löschköpfe verriegelt werden, gekennzeichnet durch eine derartige Steuerung des Antriebsdruckgases und der Verriegelungsvorrichtung, daß der Antriebskolben der Schaltstifte bis kurz nach dem Abklingen der Ausschaltbewegung vom Antriebsdruckgas unter Druck gehalten und erst dann verriegelt wird.PATENT CLAIM: Free jet compressed gas switch with fixed extinguishing heads, their movable, piston-equipped switch pins when switching off -vom Pressurized gas moves against the force of a return spring and is in the switch-off position are locked within the erase heads, characterized by such Control of the drive pressure gas and the locking device that the drive piston of the switching pins until shortly after the switch-off movement from the drive compressed gas has subsided is kept under pressure and only then locked.
DEL14610A 1953-02-07 1953-02-07 Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position Expired DE945043C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL14610A DE945043C (en) 1953-02-07 1953-02-07 Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL14610A DE945043C (en) 1953-02-07 1953-02-07 Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position

Publications (1)

Publication Number Publication Date
DE945043C true DE945043C (en) 1956-06-28

Family

ID=7259868

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL14610A Expired DE945043C (en) 1953-02-07 1953-02-07 Free-jet compressed gas switch with fixed loeschheads and with switch pins locked in the switch-off position

Country Status (1)

Country Link
DE (1) DE945043C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170034B (en) * 1960-09-06 1964-05-14 Asea Ab Switching mechanism for compressed air switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170034B (en) * 1960-09-06 1964-05-14 Asea Ab Switching mechanism for compressed air switch

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