DE1139177B - Circuit breaker with arc extinguishing by a flowing extinguishing agent - Google Patents

Circuit breaker with arc extinguishing by a flowing extinguishing agent

Info

Publication number
DE1139177B
DE1139177B DEL37828A DEL0037828A DE1139177B DE 1139177 B DE1139177 B DE 1139177B DE L37828 A DEL37828 A DE L37828A DE L0037828 A DEL0037828 A DE L0037828A DE 1139177 B DE1139177 B DE 1139177B
Authority
DE
Germany
Prior art keywords
arc
extinguishing
circuit breaker
flowing
nozzle contact
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.)
Pending
Application number
DEL37828A
Other languages
German (de)
Inventor
Dipl-Ing Franz Petermichl
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
Priority claimed from DEL33684A external-priority patent/DE1126473B/en
Priority to DEL35865A priority Critical patent/DE1130888B/en
Priority to DEL35862A priority patent/DE1148004B/en
Priority to DEL35941A priority patent/DE1131298B/en
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL37828A priority patent/DE1139177B/en
Priority to FR848371A priority patent/FR1277026A/en
Priority to CH27261A priority patent/CH388420A/en
Priority to GB1259561A priority patent/GB958276A/en
Publication of DE1139177B publication Critical patent/DE1139177B/en
Pending 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/185—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Leistungsschalter mit Lichtbogenlöschung durch ein strömendes Löschmittel Zusatz zur Patentaumeldung L 33684 VIII d / 21 c (Auslegeschrift 1126 473) Das Hauptpatent betrifft einen Leistungsschalter, bei dem ein Isolierrohr aus hochwärmefestein Material beim Ausschaltvorgang, an der Löschkammerwand gleitend, sich nachdem öffnen der Schaltkontakte vor den festen Düsenkontakt legt. Das Isolierrohr dient dazu, den Düsenkontakt vor der Wärmestrahlung des Lichtbogens zu schützen, wenn dieser in Form einer Schleife innerhalb des Gegenkontaktes brennt oder auf eine hinter dem Düsenkontakt liegende Lichtbogenelektrode getrieben wird und zwischen dieser und dem beweglichen Schaltkontakt brennt.Circuit breaker with arc quenching by a flowing extinguishing agent Addendum to patent change report L 33684 VIII d / 21 c (Auslegeschrift 1126 473) The main patent relates to a circuit breaker in which an insulating tube made of highly heat-resistant material glides on the arcing chamber wall during the opening process, after the switching contacts open in front of the fixed nozzle contact. The insulating tube is used to protect the nozzle contact from the heat radiation of the arc when it burns in the form of a loop within the counter contact or is driven onto an arc electrode located behind the nozzle contact and burns between this and the movable switching contact.

Ein Abschirmrohr, das nur aus Isolierstoff besteht, hat noch den Mangel, daß der Lichtbogenfußpunkt nicht mit der wünschenswerten Schnelligkeit auf die Lichtbogenelektrode übergeht, so daß es zu einem mehr oder weniger großen Abbrand an dem Düsenkontakt kommen kann.A shielding tube that consists only of insulating material still has the defect that the arc root does not hit the arc electrode with the desired rapidity goes over, so that there is a more or less large burn-off at the nozzle contact can come.

Die Erfindung vermeidet diesen Nachteil dadurch, daß erfindungsgemäß das Isolierrohr in seiner Achsrichtung einen oder mehrere schmale Stege aus Metall, insbesondere Wolfram, aufweist. Diese Metallstege leiten den Lichtbogenfußpunkt von dem Ansatzpunkt an dem Düsenkontakt mit großer Geschwindigkeit auf die Lichtbogenelektrode hinter diesem Kontakt, so daß der Lichtbogen keine Schleife bilden und damit auch keine große Schaltbarkeit verursachen kann. Die schmalen Metallstege haben ferner den Vorteil, daß im Gegensatz zu einem Abschirmrohr aus reinem Metall nur geringe Mengen aufgelösten Metalls in die Schaltstrecke gelangen. Die Löschung des Lichtbogens wird dadurch bedeutend erleichtert.The invention avoids this disadvantage in that according to the invention the insulating tube has one or more narrow webs made of metal in its axial direction, in particular tungsten. These metal webs conduct the arc root from the point of application at the nozzle contact to the arc electrode at high speed behind this contact so that the arc does not form a loop and so does cannot cause great switchability. The narrow metal bars also have the advantage that, in contrast to a shielding tube made of pure metal, only small Amounts of dissolved metal get into the switching path. The extinguishing of the arc this makes it much easier.

Die Zeichnung zeigt in Fig. 1 einen Längsschnitt durch die Schaltkammer eines Druckgasschalters, in Fig. 2 einen Querschnitt durch das eigentliche Abschirinrohr.The drawing shows in Fig. 1 a longitudinal section through the switching chamber of a gas pressure switch, in Fig. 2 a cross section through the actual shielding tube.

Innerhalb der Schaltkammer 1 sind der feste Düsenkontakt 2 und der bewegliche Schaltstift 3 angeordnet. Oberhalb des Düsenkontaktes befindet sich die Lichtbogenelektrode 4, auf die der Lichtbogen vom Kontakt 2 übergeht. Zwischen dem festen Kontakt und der Lichtbogenelektrode ist das Abschirmrohr 5 angeordnet, das an einem Kolben 6, der unter der Kraft einer Feder 7 steht, befestigt ist. In der Einschaltstellung ist das Abschirmrohr 5 durch den Schaltstift 3 abgehoben. Bei einer Ausschaltbewegung gleitet dieses Rohr mit dem Schaltstift nach unten und legt sich dabei vor den Düsenkontakt 2. Das Abschirmrohr besitzt einen Metallsteg 8, der den Lichtbogenfußpunkt von dem Düsenkontakt 2 in Richtung auf die Lichtbogenelektrode 4 wandern läßt. Durch das Druckgas wird diese Bewegung noch unterstützt. In der Schlußphase des Lichtbogens brennt dieser zwischen der Elektrode 4 und dem Schaltstift 3, wobei das Abschirmrohr 5 die Wärmestrahlung des Lichtbogens von dem Düsenkontakt 2 fernhält.The fixed nozzle contact 2 and the movable switching pin 3 are arranged within the switching chamber 1. The arc electrode 4, to which the arc passes from contact 2, is located above the nozzle contact. The shielding tube 5 , which is fastened to a piston 6 which is under the force of a spring 7, is arranged between the fixed contact and the arc electrode. In the switched-on position, the shielding tube 5 is lifted off by the switch pin 3. At a switching-off this tube slides with the shift key down and places it in front of the nozzle touch 2. The shielding tube has a metal core 8, which leaves the arc root from the nozzle contact 2 in the direction of the arc electrode 4 wander. This movement is supported by the pressurized gas. In the final phase of the arc, it burns between the electrode 4 and the switching pin 3, the shielding tube 5 keeping the heat radiation of the arc away from the nozzle contact 2.

Claims (1)

PATENTANSPRUCH: Leistungsschalter mit Lichtbogenlöschung durch ein strömendes Löschmittel, bei dem ein Isolierrohr aus hochwärmefestem Material beim Ausschaltvorgang, an der Löschkammerwand gleitend, sich nach dem Öffnen der Schaltkontakte vor den festen Düsenkontakt legt, mit einer mit dem Düsenkontakt verbundenen Lichtbogenelektrode, nach Patentanmeldung L33684V1I1d/21c, dadurch gekennzeichnet, daß das Isolierrohr in seiner Achsrichtung einen oder mehrere schmale Stege aus Metall, insbesondere Wolfram, aufweist. PATENT CLAIM: Circuit breaker with arc extinguishing by a flowing extinguishing agent, in which an insulating tube made of highly heat-resistant material, sliding on the arcing chamber wall during the switch-off process, lies in front of the fixed nozzle contact after the switching contacts have opened, with an arc electrode connected to the nozzle contact, according to patent application L33684V1I1d / 21c , characterized in that the insulating tube has one or more narrow webs made of metal, in particular tungsten, in its axial direction.
DEL37828A 1959-07-09 1960-12-28 Circuit breaker with arc extinguishing by a flowing extinguishing agent Pending DE1139177B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DEL35865A DE1130888B (en) 1959-07-09 1960-04-08 Circuit breaker with a flowing extinguishing agent
DEL35862A DE1148004B (en) 1959-07-09 1960-04-08 Circuit breaker with a duesiform discharge opening
DEL35941A DE1131298B (en) 1959-07-09 1960-04-19 Circuit breaker with arc extinguishing by a flowing extinguishing agent and with a shielding device for the nozzle contact
DEL37828A DE1139177B (en) 1959-07-09 1960-12-28 Circuit breaker with arc extinguishing by a flowing extinguishing agent
FR848371A FR1277026A (en) 1959-07-09 1960-12-29 Circuit breaker
CH27261A CH388420A (en) 1959-07-09 1961-01-09 Circuit breakers, in particular compressed gas switches
GB1259561A GB958276A (en) 1959-07-09 1961-04-07 Improvements in fluid blast electric circuit breakers

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEL33684A DE1126473B (en) 1959-07-09 1959-07-09 Circuit breaker with a flowing extinguishing agent
DEL35865A DE1130888B (en) 1959-07-09 1960-04-08 Circuit breaker with a flowing extinguishing agent
DEL35862A DE1148004B (en) 1959-07-09 1960-04-08 Circuit breaker with a duesiform discharge opening
DEL35941A DE1131298B (en) 1959-07-09 1960-04-19 Circuit breaker with arc extinguishing by a flowing extinguishing agent and with a shielding device for the nozzle contact
DEL37828A DE1139177B (en) 1959-07-09 1960-12-28 Circuit breaker with arc extinguishing by a flowing extinguishing agent

Publications (1)

Publication Number Publication Date
DE1139177B true DE1139177B (en) 1962-11-08

Family

ID=27512145

Family Applications (4)

Application Number Title Priority Date Filing Date
DEL35865A Pending DE1130888B (en) 1959-07-09 1960-04-08 Circuit breaker with a flowing extinguishing agent
DEL35862A Pending DE1148004B (en) 1959-07-09 1960-04-08 Circuit breaker with a duesiform discharge opening
DEL35941A Pending DE1131298B (en) 1959-07-09 1960-04-19 Circuit breaker with arc extinguishing by a flowing extinguishing agent and with a shielding device for the nozzle contact
DEL37828A Pending DE1139177B (en) 1959-07-09 1960-12-28 Circuit breaker with arc extinguishing by a flowing extinguishing agent

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DEL35865A Pending DE1130888B (en) 1959-07-09 1960-04-08 Circuit breaker with a flowing extinguishing agent
DEL35862A Pending DE1148004B (en) 1959-07-09 1960-04-08 Circuit breaker with a duesiform discharge opening
DEL35941A Pending DE1131298B (en) 1959-07-09 1960-04-19 Circuit breaker with arc extinguishing by a flowing extinguishing agent and with a shielding device for the nozzle contact

Country Status (2)

Country Link
CH (1) CH388420A (en)
DE (4) DE1130888B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624595C3 (en) * 1976-05-28 1980-01-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Contact arrangement for pressure gas switch
DE2847808C2 (en) * 1978-11-02 1986-04-10 Siemens AG, 1000 Berlin und 8000 München Contact arrangement for pressure gas switch

Also Published As

Publication number Publication date
DE1130888B (en) 1962-06-07
CH388420A (en) 1965-02-28
DE1131298B (en) 1962-06-14
DE1148004B (en) 1963-05-02

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