DE519900C - Device for the elimination of disruptive influences on telecommunications systems due to overvoltages - Google Patents
Device for the elimination of disruptive influences on telecommunications systems due to overvoltagesInfo
- Publication number
- DE519900C DE519900C DEA50469D DEA0050469D DE519900C DE 519900 C DE519900 C DE 519900C DE A50469 D DEA50469 D DE A50469D DE A0050469 D DEA0050469 D DE A0050469D DE 519900 C DE519900 C DE 519900C
- Authority
- DE
- Germany
- Prior art keywords
- overvoltages
- elimination
- telecommunications systems
- voltage
- disruptive influences
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
Einrichtung zur Beseitigung von störenden Beeinflussungen von Fernmeldeanlagen durch Überspannungen In dem Hauptpatent 482 714 sind Einrichtungen zur Beseitigung von störenden Einflüssen von Fernmeldeanlagen durch Überspannungen beschrieben, deren wesentliches Kennzeichen darin besteht, daß die zur Ableitung von Überspannungen dienenden Spannungssicherungen in solche Abhängigkeit ,voneinander gebracht «erden, daß die Gleichmäßigkeit der Störungsenergiemengen sichergestellt ist und die Betriebsapparate der Fernmeldeanlage gegen Störungen geschützt werden.Device for eliminating disruptive influences on telecommunications systems by overvoltages In the main patent 482 714 are devices for elimination of disruptive influences from telecommunications systems due to overvoltages, the main characteristic of which is that they are used to dissipate overvoltages voltage fuses that are used in such a way that they are interdependent, that the uniformity of the disturbance energy amounts is ensured and the operating apparatus the telecommunications system must be protected against interference.
Gemäß den Beschreibungen der obengenannten Patente werden als Ableiter sogenannte Spannungs- oder Durchschlagssicherungen verwendet, vermittels welcher im normalen Zustande die Verbindung zwischen Frde und Fernmeldeanlage unterbrochen ist, dagegen wird im Störungsfall durch Überschlag von einer Elektrode zur anderen die Verbindung hergestellt. Der Gegenstand des vorliegenden Zusatzpatents beruht auf der Erkenntnis, daß an Stelle oder parallel zu den Spannungssicherungen, welche in der Praxis im allgemeinen erst bei einer bestimmten, verhältnismäßig hohen Spannung, günstigenfalls etwa bei 9o Volt, ansprechen, spannungsabhängige Widerstände geschaltet werden. beispielsweise Fritter, Silit- oder Ozelitwiderstände u. dgl. Bei dem als Beispiel genannten Fritter handelt es sich um einen aus der drahtlosen Telegraphie genügend bekannten Apparat mit der besonderen Eigenschaft, daß dem Gleich- oder Wechselstrom bei niedriger Spannung der Durchtritt verwehrt, während er beim Auftreten von Spannungsstößen infolge Frittung leitend wird und nunmehr nur noch einen gewissen Ohmschen Widerstand besitzt.According to the descriptions of the above-mentioned patents, as arresters so-called voltage or breakdown fuses are used, by means of which in the normal state the connection between the outside and the telecommunications system is interrupted is, on the other hand, in the event of a fault, a flashover from one electrode to the other the connection established. The subject matter of the present additional patent is based on the knowledge that instead of or parallel to the voltage fuses, which in practice generally only at a certain, relatively high voltage, ideally at about 9o volts, respond, voltage-dependent resistors switched will. for example fritters, silite or ozelite resistors and the like The fritter mentioned in the example is one from wireless telegraphy sufficiently known apparatus with the special property that the equal or Alternating current at low voltage denies passage, while it does when it occurs from voltage surges due to fritting becomes conductive and now only a certain amount Has ohmic resistance.
Die verhältnismäßig niedrige Ansprechspannung der Fritter macht dieselben in Verbindung mit der oben beschriebenen Einrichtung außerdem zum Ausgleich von Spannungsunterschieden der verschiedenen Zweige einer Fernmeldeanlage geeignet. Überbrückt man nämlich die Zweige ummittelbar durch Fritter* so erreicht man den Ausgleich etwaiger Spannungsunterschiede, z. B. bei Erdschluß eines Zweiges, mit dem Ziel, die Arbeitsbedingungen, z. B. der Kopplungsspule. in dein Sinne zii erleichtern, claß ein gleich-Z, mäßiger Stroinäbfluß sichergestellt wird.The relatively low response voltage of the fritters does the same in connection with the device described above also to compensate for Voltage differences of the various branches of a telecommunications system. If one bridges the branches directly with fritters *, one reaches the Compensation for any voltage differences, e.g. B. in the event of a ground fault in a branch, with the aim of the working conditions, e.g. B. the coupling coil. in your Facilitate the senses so that an equal flow of strokes is ensured.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA50469D DE519900C (en) | 1925-04-02 | 1927-03-30 | Device for the elimination of disruptive influences on telecommunications systems due to overvoltages |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE613840X | 1925-04-02 | ||
| DEA50469D DE519900C (en) | 1925-04-02 | 1927-03-30 | Device for the elimination of disruptive influences on telecommunications systems due to overvoltages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE519900C true DE519900C (en) | 1931-03-05 |
Family
ID=25945579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA50469D Expired DE519900C (en) | 1925-04-02 | 1927-03-30 | Device for the elimination of disruptive influences on telecommunications systems due to overvoltages |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE519900C (en) |
-
1927
- 1927-03-30 DE DEA50469D patent/DE519900C/en not_active Expired
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