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
Links
Landscapes
- 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)
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) |
-
1927
- 1927-11-23 AT AT111496D patent/AT111496B/en active
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