AT111496B - Fuse arrangement for telecommunications systems endangered by high voltage currents. - Google Patents

Fuse arrangement for telecommunications systems endangered by high voltage currents.

Info

Publication number
AT111496B
AT111496B AT111496DA AT111496B AT 111496 B AT111496 B AT 111496B AT 111496D A AT111496D A AT 111496DA AT 111496 B AT111496 B AT 111496B
Authority
AT
Austria
Prior art keywords
endangered
voltage
high voltage
fuse arrangement
telecommunications systems
Prior art date
Application number
Other languages
German (de)
Inventor
Emil Fischer
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 AT111496B publication Critical patent/AT111496B/en

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  • Emergency Protection Circuit Devices (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Sicherungsanordnung für durch Starkstrom gefährdete   Fernmeldeanlagen.   
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 strecken P1 und   P2'Als Abschluss   der Schutzstrecke dient der Isoliertransformator T, an dessen Sekundärseite die-eigentlichen, noch mit Feinspannungs- und Stromschutzeinrichtungen versehenen, in dem Schaltungsschema nicht dargestellten Schwachstromapparate angeschaltet sind. 



   Die Wirkungsweise der spannungsbegrenzer m und n ist folgende : Tritt ein direkter Stromübergang auf die Leitungen la,   lb   seitens einer etwa gerissenen Hochspannungsleitung auf, so übernehmen die zwei gleichartigen Spannungsbegrenzer n und m die Ableitung nach Erde so, dass dahinter keine höheren Spannungen auftreten können, als die Ansprechspannung der Spanmmgsbegrenzer ausmacht. Durch den über die   Grossflächenelektrode   des zweiten   Grobspannungsableiters   n nach Erde fliessenden Strom wird die   Stromsieherung   S1, S2 zum Durchschmelzen gebracht. Findet der Stromübergang zwischen einem 
 EMI2.1 
 liche Spannung gegen Erde an, dann führen aber auch die beiden Fernsprechleiter la und lb gegeneinander beträchtliche Spannungen.

   Bei der-neuen Anordnung wird durch die Plattenfunkenstrecken aber 
 EMI2.2 




   <Desc / Clms Page number 1>
 



  Fuse arrangement for telecommunications systems endangered by high voltage currents.
 EMI1.1
 

 <Desc / Clms Page number 2>

 lines P1 and P2 'The isolation transformer T terminates the protective line, on the secondary side of which the actual low-voltage devices, which are still provided with fine voltage and current protection devices and are not shown in the circuit diagram, are connected.



   The mode of operation of the voltage limiters m and n is as follows: If there is a direct current transfer to the lines la, lb from a high-voltage line that has broken, the two voltage limiters n and m of the same type take over the discharge to earth so that no higher voltages can occur behind them, than the response voltage of the voltage limiter. The current collection S1, S2 is caused to melt through the current flowing to earth via the large area electrode of the second coarse voltage arrester n. Finds the current transition between one
 EMI2.1
 Liche voltage to earth, but then the two telephone conductors la and lb lead to considerable voltages against each other.

   In the new arrangement, however, the plate spark gaps
 EMI2.2


 

Claims (1)

PATENT-ANSPRUCH : Sicherungsanordnung für durch Starkstrom gefährdete Fernmeldeanlagen mittels Stromsicherungen, Grobspannungsableitern und Feinspannungsableitern, dadurch gekennzeichnet, dass vor und hinter den in die Einzelleiter (la, Ib) eingeschalteten Stromsicherungen', ) Grobspannungsplattenableiter (n, m) zwischen die Einzelleiter (la, lb) eingeschaltet sind, wobei zweckmässig hinter dem zweiten Ableiter (n), aber vor den Feinschutzvorrichtungen, noch weitere Stromsicherungen vorgesehben sind. EMI2.3 PATENT CLAIM: Fuse arrangement for telecommunication systems endangered by high voltage by means of current fuses, coarse voltage arresters and fine voltage arresters, characterized in that in front of and behind the current fuses ',) coarse voltage plate arresters (n, m) are connected between the individual conductors (la, lb) in front of and behind the current fuses',) coarse voltage plate arresters (n, m) , whereby further current fuses are expediently provided behind the second arrester (s) but in front of the fine protection devices. EMI2.3
AT111496D 1926-12-03 1927-11-23 Fuse arrangement for telecommunications systems endangered by high voltage currents. AT111496B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE111496X 1926-12-03

Publications (1)

Publication Number Publication Date
AT111496B true AT111496B (en) 1928-11-26

Family

ID=5652553

Family Applications (1)

Application Number Title Priority Date Filing Date
AT111496D AT111496B (en) 1926-12-03 1927-11-23 Fuse arrangement for telecommunications systems endangered by high voltage currents.

Country Status (1)

Country Link
AT (1) AT111496B (en)

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