DE659239C - Switch with differential pumping piston built into the arc chamber - Google Patents

Switch with differential pumping piston built into the arc chamber

Info

Publication number
DE659239C
DE659239C DEST53900D DEST053900D DE659239C DE 659239 C DE659239 C DE 659239C DE ST53900 D DEST53900 D DE ST53900D DE ST053900 D DEST053900 D DE ST053900D DE 659239 C DE659239 C DE 659239C
Authority
DE
Germany
Prior art keywords
pole
switch
arc
arc chamber
pump 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
DEST53900D
Other languages
German (de)
Inventor
F W Pape
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.)
STUDIENGES HOCHLEISTUNGSSCHALT
Studiengesellschaft fuer Hochleistungs Schalter GmbH
Original Assignee
STUDIENGES HOCHLEISTUNGSSCHALT
Studiengesellschaft fuer Hochleistungs Schalter 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 STUDIENGES HOCHLEISTUNGSSCHALT, Studiengesellschaft fuer Hochleistungs Schalter GmbH filed Critical STUDIENGES HOCHLEISTUNGSSCHALT
Priority to DEST53900D priority Critical patent/DE659239C/en
Application granted granted Critical
Publication of DE659239C publication Critical patent/DE659239C/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
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/045Means for extinguishing or preventing arc between current-carrying parts for arcs formed during closing
    • 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
    • H01H33/7015Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7084Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by movable parts influencing the gas flow
    • 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

Schalter mit in der Lichtbogenkammer eingebautem Differentiälpumpkolben In dem Patent 658 290 ist ein Schalter mit Lichtbogenlöschung durch Druckluft .oder Flüssigkeitsspülung beschrieben und dargestellt, bei dem .ein die Stromleitung nur nach Kontakttrennung des Schalters, übernehmender und mit dem ruhenden Kontakt in leitender Verbindung stehenden Hilfspol derart beweglich angeordnet ist, daß er dem Polstift unter Aufrechterhaltiuig eines gleichbleibenden Abstandes zu folgen vermag. In einem Ausführungsbeispiel dieses Schutzrechtes ist ein Schalter mit in der Lichtbogenkammer eingebautem, dem Polstift nachfolgendem Differentialpumpkolben dargestellt, der einen ringförmig um den Polstift gelagerten Hilfspol trägt.Switch with differential pump piston built into the arc chamber Patent 658 290 describes and shows a switch with arc quenching by compressed air or liquid flushing, in which an auxiliary pole takes over the power line only after the switch has been disconnected and is in conductive connection with the static contact is movably arranged that it is able to follow the pole pin while maintaining a constant distance. In one embodiment of this property right, a switch is shown with a differential pump piston installed in the arc chamber, following the pole pin, which carries an auxiliary pole mounted in a ring around the pole pin.

Bei einem Schalter mit einem derartigen Hilfspol tritt, da der Lichtbogen von dem strömenden Löschmedium durchquert wird, eine Längung des Lichtbogens auf, die das erstrebte Ergebnis der kurzen Entfernung der beiden Lichtbogenfußpunkte zum Teil wieder aufhebt.In the case of a switch with such an auxiliary pole, the arc occurs is traversed by the flowing extinguishing medium, an elongation of the arc, which is the desired result of the short distance between the two arc roots partially repeals.

Durch die vorliegende Erfindung wird dieser Nachteil vermieden. Zu diesem Zweck soll der durch den Pumpkolben bewegte Hilfspol in dem ruhenden hohlen Schaltpol angeordnet sein und über einen in einem Führungsspalt der ruhenden Elektrode gleitenden Quersteg mit dem P-umpkolben in Verbindung stehen.The present invention avoids this disadvantage. to For this purpose, the auxiliary pole moved by the pump piston should be hollow in the stationary one Be arranged switching pole and via one in a guide gap of the resting electrode sliding crossbar with the P-ump piston in connection.

Bei Verwendung von Fingerkontakten ist darauf zu achten, daß der Polstift genügend tief in die Fingerkontakte eindringen kann, um die Übergangsbelastung in der Kontakt-Räche möglichst niedrig zu halten. Die Eindringtiefe des Polstiftes muß in den meisten Fällen größer als die für den Löschvorgang günstigste Entfernung zwischen Polstift und dem .nachfolgenden Hilfspol sein. Um diese günstigste Entfernung zu erhalten, soll gemäß der Erfindung der Hilfspol in dem Quersteg des Pumpkolbens gleitend angeordnet sein und, durch eine Feder belastet, in Ausschaltrichtung gegen einen Anschlag im Quersteg gepreßt werden.When using finger contacts, make sure that the pole pin can penetrate deep enough into the finger contacts to absorb the transitional load in to keep the contact area as low as possible. The penetration depth of the pole pin must in most cases be greater than the most favorable distance for the deletion process between the pole pin and the following auxiliary pole. At this most favorable distance to get, should according to the invention of the auxiliary pole in the transverse web of the pump piston be slidably arranged and, loaded by a spring, against in the disconnection direction a stop can be pressed in the crosspiece.

In Abb. i ist ein solcher Schalter im eingeschalteten Zustand eimd in Abb. 2 während des Ausschaltvorganges dargestellt. Der Differ.entialpumpkolb,en ,a ist in der Löschkammer b eingebaut, die sich im Schaltergehäuse c befindet. Im :eingeschalteten Zustand umschließt der ruhende, am unteren Löschkammerdeckel befestigte Polkontaktd den beweglichen Polstifte. Der Hilfspol f ist unterhalb des Polstiftes e im festen Hohlkontakt,d ebenfalls als zylinderförmiger Stift gleitend in einem Quer.--;. sieg g untergebracht. Der Hilfsstift f wird durch eine Druckfederk nach oben gedrückt und legt sich, sobald der Polstifte den Weg freigibt, gegen die Schulter! im Quersteg g.In Fig. I, such a switch is shown in the switched-on state shown in Fig. 2 during the switch-off process. The differential pump piston , a is installed in the quenching chamber b, which is located in the switch housing c. in the : on state encloses the resting one on the lower extinguishing chamber cover Pole contact attached to the movable pole pins. The auxiliary pole f is below the Pole pin e in the fixed hollow contact, d also sliding as a cylindrical pin in a cross .-- ;. victorious housed. The auxiliary pin f is by a compression spring pushed upwards and, as soon as the pole pins clear the way, lies against the Shoulder! in the crossbar g.

Wird der bewegliche Hauptkontakte aus dem ruhenden Kontakt cl herausbewegt, so bildet sich zwischen diesen Kontakten ein Lichttogen, der einen Teil der Schalterflüssigkeit verdampft. Der durch die Verdampfung entstehende Druckanstieg in der Löschkammer veranlaßt ein Hochsteigen des Differentialkolbens a, der bei seinem Eindringen in den Zylinderraum k dessen Flüssigkeitsinhalt durch einen Ringspalt zwischen dem Umfang der Öffnung im Kolbenbodena und dem Polstiftle zum Lichtbogen spritzt. Da der Differentialkolben unmittelbar dem Polstifte folgt, so bleibt der mit dem Kolben in _ Verbindung stehende Hilfspol f ebenfalls in gleicher Entfernung vom Polstift e und übernimmt bei seinem Hervortreten aus dem ruhenden Kontakt d den Lichtbogen von letzterem, wie dies Abb.2 zeigt. Der Lichtbogen behält seine für den Löschvorgang günstigste Länge bis zum Erlöschen bei, da die .ihn allseitig einhüllende, in seiner Längsrichtung vorbeiströmende Flüssigkeit ein Ausbrechen des Lichtbogens aus der Achse der 'beiden Polstiftee und /,unmöglich macht.If the moving main contact is moved out of the stationary contact cl, this creates an arc between these contacts, which forms part of the switch fluid evaporates. The rise in pressure in the extinguishing chamber caused by evaporation causes the differential piston a to rise, which when it penetrates into the cylinder space k whose liquid content through an annular gap between the The circumference of the opening in the piston crown and the pole pin to the arc splashes. There the differential piston immediately follows the pole pin, the one with the piston remains connected auxiliary poles also at the same distance from the pole pin e and takes over the arc when it emerges from the static contact d of the latter, as shown in Figure 2. The arc retains its hold for the extinguishing process the most favorable length up to the point of extinction, since the Liquid flowing past in the longitudinal direction causes the arc to break out of the Axis of the 'two pole pins and /, makes impossible.

Claims (2)

PATEI_NTANSPrüci-iL: i. Schalter mit in der Lichtbogenkammer eingebautem Differentialpumpkolben zur Erzeugung einer Flüssigkeitsströmung zum Löschen des Lichtbogens und mit :einem mit dem Pumpkolben und mit dem ruhenden Polkontakt in Verbindung stehenden Hilfspol, der dem beweglichen Polstift in ungefähr gleichbleibenden Abstand nachfolgt, nach Patent 658 29o, dadurch gekennzeichnet, daß der Hilfspol (f) in dein ruhenden hohlen Schaltpol (d) angeordnet ist und über einen Quersteg (g) mit dein Pumpkolben (a) in Verbindung steht. PATEI_NTANSPrüci-iL: i. Switch with built-in in the arc chamber Differential pumping piston to generate a liquid flow to extinguish the Arc and with: one with the pump piston and with the stationary pole contact in Connected auxiliary pole, that of the movable pole pin in approximately constant Distance follows, according to Patent 658 29o, characterized in that the auxiliary pole (f) is arranged in your resting, hollow switching pole (d) and over a transverse web (g) communicates with the pump piston (a). 2. Schalter nach Anspruch i, dadurch gekennzeichnet, daß der Hilfspol (f) in dem Quersteg (g) des Pumpkolbens (a) gleitend angeordnet ist und durch eine Feder (h) in Ausschaltrichtung gegen einen Anschlag (L) im Quersteg (g) gepreßt wird.2. Switch according to claim i, characterized characterized in that the auxiliary pole (f) slides in the transverse web (g) of the pump piston (a) is arranged and by a spring (h) in the disconnection direction against a stop (L) is pressed in the transverse web (g).
DEST53900D 1935-09-10 1935-09-11 Switch with differential pumping piston built into the arc chamber Expired DE659239C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST53900D DE659239C (en) 1935-09-10 1935-09-11 Switch with differential pumping piston built into the arc chamber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE806834X 1935-09-10
DEST53900D DE659239C (en) 1935-09-10 1935-09-11 Switch with differential pumping piston built into the arc chamber

Publications (1)

Publication Number Publication Date
DE659239C true DE659239C (en) 1938-04-28

Family

ID=25948817

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST53900D Expired DE659239C (en) 1935-09-10 1935-09-11 Switch with differential pumping piston built into the arc chamber

Country Status (1)

Country Link
DE (1) DE659239C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123010B (en) * 1957-10-14 1962-02-01 Licentia Gmbh Electric fluid switch
US3076080A (en) * 1961-02-17 1963-01-29 Allis Chalmers Mfg Co Fluid blast interrupting device for oil circuit breakers employing auxiliary contact

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123010B (en) * 1957-10-14 1962-02-01 Licentia Gmbh Electric fluid switch
US3076080A (en) * 1961-02-17 1963-01-29 Allis Chalmers Mfg Co Fluid blast interrupting device for oil circuit breakers employing auxiliary contact

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