AT7008B - Fuse. - Google Patents

Fuse.

Info

Publication number
AT7008B
AT7008B AT7008DA AT7008B AT 7008 B AT7008 B AT 7008B AT 7008D A AT7008D A AT 7008DA AT 7008 B AT7008 B AT 7008B
Authority
AT
Austria
Prior art keywords
fuse
arc
event
fuses
strips
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT7008B publication Critical patent/AT7008B/en

Links

Landscapes

  • Fuses (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Schmelzsicherung. 



   Sicherungen müssen so hergestellt sein, dass sie auch bei Kurzschluss den auftretenden Lichtbogen zum   Erlöschen bringen, ohne dass   die Contacte oder die Leitungen zerstört worden. Um für Mittelspannungen und   Hochspannungen   nicht zu grosse Abmessungen der Sicherungen zu erhalten, hat man mechanisch, magnetisch oder dynamisch wirkende Anordnungen getroffen. 



   Bei der Sicherung, die den Gegenstand vorliegender Erfindung bildet, ist besonders darauf Rücksicht genommen worden, dass, unbeschadet der Wirksamkeit der Sicherung, möglichst wenig Metall verbrenne, da die starke   Entwickelung   von Metalldämpfen haupt-   sächlich   zur Vergrösserung des Lichtbogens beiträgt. Bei einem Schmelzstreifen (Fig. 1) mit einer Einschnürung a in der Mitte entsteht an der Schmelzstelle   verhältnismässig   starkos 
 EMI1.1 
 



   Die Bügel b können entweder von gleichem Material, aber mit verstärktem Quer-   schnitt, wie die Schmoizstreifen   c sein oder es können beispielsweise die Schmelzstreifen c aus Silberdraht, die Verbindungsbügel dagegen aus Kupferblech bestehen. Stets wird bei der beschriebenen Anordnung die gleiche Wirkung auftreten, und es werden verhältnismässig geringe Mengen Metall verbrannt. 
 EMI1.2 
 werden. 



   Versuche haben ergeben, dass bei   Kurzschlüssen mit Maschinen   von grosser Leistung die Sicherungen sicher wirken ; der Lichtbogen ist auch bei Kurzschlüssen gering und erlischselbstbeiallmählichgesteigerterStromstärkesofort. 



     Anstatt zwei Sehmelzstreifen zu   einer Sicherung zu verbinden, können deren   mehrere verbunden werden, z. H.   vier zu einem Doppel-U. 



   PATENT-ANSPRÜCHE : 
 EMI1.3 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Fuse.



   Fuses must be manufactured in such a way that they extinguish the arcing that occurs even in the event of a short circuit, without the contacts or the lines being destroyed. Mechanically, magnetically or dynamically acting arrangements have been made so that the dimensions of the fuses are not too large for medium voltages and high voltages.



   In the fuse, which is the subject of the present invention, particular care has been taken to ensure that, irrespective of the effectiveness of the fuse, as little metal as possible burns, since the strong development of metal vapors mainly contributes to the enlargement of the arc. In the case of a melting strip (Fig. 1) with a constriction a in the middle, relatively strongos occurs at the melting point
 EMI1.1
 



   The brackets b can either be made of the same material, but with a reinforced cross-section, like the Schmoiz strips c or, for example, the melt strips c can be made of silver wire, whereas the connecting brackets are made of sheet copper. The same effect will always occur with the arrangement described, and relatively small amounts of metal are burned.
 EMI1.2
 will.



   Tests have shown that in the event of short circuits with high-performance machines, the fuses work safely; the arc is small even in the event of short circuits and extinguishes immediately, even with gradually increased current.



     Instead of connecting two strips of clay to a fuse, several can be connected, e.g. H. four to a double U.



   PATENT CLAIMS:
 EMI1.3
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

dass dieselben mit dem Bügel eine Stromschleife bilkden, deren elektrodynamische Wirkung den Lichtbogen rasch zum Auslöschen bringt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. that they form a current loop with the bracket, the electrodynamic effect of which quickly extinguishes the arc. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT7008D 1900-10-17 1900-10-17 Fuse. AT7008B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT7008T 1900-10-17

Publications (1)

Publication Number Publication Date
AT7008B true AT7008B (en) 1902-03-10

Family

ID=3497505

Family Applications (1)

Application Number Title Priority Date Filing Date
AT7008D AT7008B (en) 1900-10-17 1900-10-17 Fuse.

Country Status (1)

Country Link
AT (1) AT7008B (en)

Similar Documents

Publication Publication Date Title
AT7008B (en) Fuse.
DE1948030C3 (en) Fuse cartridge
DE1790035A1 (en) Electrical switch with an axially movable switch contact and a fixed contact that remains in contact with it
DE1299356B (en) Fuse element
DE571530C (en) Bimetal release
AT69599B (en) Fuse for electrical circuits.
DE121217C (en)
DE368031C (en) Heat relay with a two-metal link
DE377607C (en) Heat relay
AT146325B (en) Surge arresters.
DE333674C (en) Low voltage fuse with electrodynamic effect
DE149779C (en)
DE3806573C2 (en)
AT140158B (en) Electrical switch for large switching currents with arc quenching by blowing.
AT156764B (en) Protective device for electrical machines and devices with high rated currents.
AT60865B (en) Device for limiting the spatial expansion of arcs in electrical, fuses or the like.
DE429970C (en) Fusible link in strip form
AT48254B (en) Electrical security device against break-in and property damage.
AT99666B (en) Protection device for the cooling cylinders of the electrodes of electric arc furnaces.
AT166123B (en)
AT69705B (en) Empty air lightning arrester with a short circuit of the electrodes which automatically takes effect in the event of overload.
DE919653C (en) Arrangement for fastening switching or fuse contacts and their connection means on insulators for disconnectors or fuses
AT23023B (en) Oil switch for high voltage with two interruption points connected in series.
DE767767C (en) Spark extinguishing arrangement for telecommunications, especially telephone systems
AT108863B (en) Oil switch with extinguishing chamber.