DE695642C - Arc tear-off horn for electrical switches - Google Patents

Arc tear-off horn for electrical switches

Info

Publication number
DE695642C
DE695642C DE1939V0035531 DEV0035531D DE695642C DE 695642 C DE695642 C DE 695642C DE 1939V0035531 DE1939V0035531 DE 1939V0035531 DE V0035531 D DEV0035531 D DE V0035531D DE 695642 C DE695642 C DE 695642C
Authority
DE
Germany
Prior art keywords
arc
horn
iron
electrical switches
path
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
DE1939V0035531
Other languages
German (de)
Inventor
Wilhelm Becker
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner 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.)
Filing date
Publication date
Application filed by Voigt and Haeffner AG filed Critical Voigt and Haeffner AG
Priority to DE1939V0035531 priority Critical patent/DE695642C/en
Application granted granted Critical
Publication of DE695642C publication Critical patent/DE695642C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Description

Lichtbogenabreißhorn für elektrische Schalter Zusatz zum Patent 694 353 Im Hauptpatent 694 353 wurde bereits vorgeschlagen, zur Verhinderung eines falschen Abwanderus des bei der Unterbrechungeines elektrischen Schalters entstehenden Lichtbogens Ahreißhörner vorzusehen, die aus aus gut stromleitendem Material hergestellten Rohren bestehen. Diese Rohre sind finit einem durchlaufende Schlitz versehe, wobei der Lichtbogen immer in der Mitte des Hornes an der Schnittkante des Rohres entlang wandert.Arc rupture horn for electrical switches Addition to patent 694 353 In the main patent 694 353 has already been proposed to prevent a wrong Stray of the arc created when an electrical switch is interrupted Provide horns made of pipes made of a material that conducts electricity well exist. These tubes are finitely provided with a continuous slot, the Arc always in the middle of the horn along the cut edge of the pipe wanders.

In der Praxis hat es sich jedoch. gezeigt, daß ein, günstiger Verlauf des Lichtbogens mit einer solchen Anordnung nicht immer gewährleistet ist. Die Erfindung verbessert die bereits vorgeschlagene Anordnung dadurch, daß die im Innern der Lichtbagenabreßhörner vorgesehene Eiseneinlage die Form von gewölbten Eisenblechen aufweist, die das Blasfeld auf den. Laufweg des Lichtbogenfußpunktes konzentrieren. Hierbei Überbrükken sie teilweise den Abstand zwischen den Liehtbogeabreißhörnern und dem Blaseisen, so .daß bei gegebener AW-Zahl das Blasfeld im Laufweg des Lichtbogenfußpunkteswesentlieh verstärkt wird.In practice, however, it has. showed that a, favorable course of the arc is not always guaranteed with such an arrangement. The invention improves the arrangement already proposed in that the inside of the arc breaker horns provided iron insert has the shape of curved iron sheets that form the blower field on the. Concentrate the path of the arc root. Here they bridge partly the distance between the bow tear-off horns and the blow iron, see above .that with a given AW number the blown field in the path of the arc root point is essential is reinforced.

Die Erfindung ist in der Zeichnung in zwei Abbildungen beispielsweise dargestellt. Der Schalterkontakta trägt an seinqm, einen Ende ein Ablaufharn b, dessen Ende in das beispielsweise aus Kupfer hergestellte Rohr c hineinragt. Dieses Röhr c hat vorzugsweise rechteckige Form und besitzt einen Schlitz d: Innerhalb des Rohres c isst eine: Eiseneinlage e untergebracht; die zweckmäßigerweise aus einem oder mehreren gewölbten Eisenblechen zusammengesetzt ist. Der Lichtbogen läuft beim Unterbrechungsvorgang am Schlitzd in einer durch die Fö@rm der Eisenbleche bedingten günstigen Weise entlang: Somit ist ein sicheres, unschädliches Abwandern des Lichtbogens gewährleistet.The invention is shown in the drawing in two figures, for example shown. The switch contact a has a drain urine b on its one end, the end of which protrudes into the tube c made for example of copper. This Tube c is preferably rectangular in shape and has a slot d: inside of the tube c eats a: iron insert e housed; which expediently is composed of one or more arched iron sheets. The arc is running during the interruption process at Schlitzd in one through the Fö @ rm of the iron sheets conditionally favorable way along: This is a safe, harmless migration of the arc guaranteed.

Durch die. Anordnung der Eiseneinlagen wird der Strombereich des Schalters wesentlich erweitert, da bei kleinen Strömen bereits am Fußpunkt ein genügend großes Feld erreichbar ist. Bei größeren Strömen bewirkt die Sättigung der Eiseneinlagen keine proportionale Zunahme der Luftspaltinduktion und vermeidet hierdurch zu starke Blasung.Through the. Arrangement of the iron inserts becomes the current range of the switch significantly expanded, since with small currents a sufficiently large one already at the foot point Field is reachable. With larger currents, the saturation of the iron deposits causes no proportional increase in the air gap induction and thereby avoids excessive Blistering.

Claims (2)

PATENTANSP12ÜCI-IE: i. Lichtbagenabrpißhom für elektrische Schalter, bestehend aus einem geschlitzten Rohr und einer Einlage aus ferromägnetischem Material, nach Patent 694353, dadurch gekennzeichnet, d,äß die Eiseneinlage die Form eines oder mehrerer gewölbter Eisenbleche besitzt, die das Blasfeld auf den Laufweg des Lichtbogenfußpunktes konzentrieren. PATENT TRANSP12ÜCI-IE: i. Lichtbagenabrpißhom for electrical switches, consisting of a slotted tube and an insert made of ferromagnetic material, according to patent 694353, characterized in that the iron insert has the shape of one or more curved iron sheets which concentrate the blower field on the path of the arc base. 2. Lichtbogenabreißhorn nach Anspruch I, dadurch gekennzeichnet, daß die Eisenbleche den Abstand zwischen dem Lichtbogenabreißhorn und dem Blaseisen ganz oder teilweise überbrücken, so daß - bei gegebener Amperewindungszabl der Blasspule das Feld im Laufweg der Lichtbogenfußpunkte wesentlich verstärkt wird.2. Arc rupture horn according to claim I, characterized in that the iron sheets the distance between the arcing horn and bridge the blow iron in whole or in part, so that - with a given Amperewindungszabl of the blow coil, the field in the path of the arc roots is significantly strengthened.
DE1939V0035531 1939-01-01 1939-01-01 Arc tear-off horn for electrical switches Expired DE695642C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939V0035531 DE695642C (en) 1939-01-01 1939-01-01 Arc tear-off horn for electrical switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939V0035531 DE695642C (en) 1939-01-01 1939-01-01 Arc tear-off horn for electrical switches

Publications (1)

Publication Number Publication Date
DE695642C true DE695642C (en) 1940-08-29

Family

ID=7589788

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939V0035531 Expired DE695642C (en) 1939-01-01 1939-01-01 Arc tear-off horn for electrical switches

Country Status (1)

Country Link
DE (1) DE695642C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005591B (en) * 1952-06-07 1957-04-04 Siemens Ag Switchgear with bridge contact and arc horns
DE1081948B (en) * 1957-08-30 1960-05-19 Allis Chalmers Mfg Co Electric circuit breaker
DE1087217B (en) * 1958-09-10 1960-08-18 Licentia Gmbh Magnetic blow switch
US3114814A (en) * 1960-09-19 1963-12-17 Licentia Gmbh Arc centering contact arrangement
DE1262404B (en) * 1964-06-22 1968-03-07 Telemecanique Electr I Sa I Electric circuit breaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005591B (en) * 1952-06-07 1957-04-04 Siemens Ag Switchgear with bridge contact and arc horns
DE1081948B (en) * 1957-08-30 1960-05-19 Allis Chalmers Mfg Co Electric circuit breaker
DE1087217B (en) * 1958-09-10 1960-08-18 Licentia Gmbh Magnetic blow switch
US3114814A (en) * 1960-09-19 1963-12-17 Licentia Gmbh Arc centering contact arrangement
DE1262404B (en) * 1964-06-22 1968-03-07 Telemecanique Electr I Sa I Electric circuit breaker

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