DE536904C - 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 overvoltages

Info

Publication number
DE536904C
DE536904C DEA58920D DEA0058920D DE536904C DE 536904 C DE536904 C DE 536904C DE A58920 D DEA58920 D DE A58920D DE A0058920 D DEA0058920 D DE A0058920D DE 536904 C DE536904 C DE 536904C
Authority
DE
Germany
Prior art keywords
overvoltages
fuses
choke
elimination
telecommunications systems
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
DEA58920D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG 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.)
Publication date
Priority to DEA58920D priority Critical patent/DE536904C/en
Application granted granted Critical
Publication of DE536904C publication Critical patent/DE536904C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/08Modifications 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 Die Erfindung stellt eine weitere Ausgestaltung der den Gegenstand des Patents 5z9 899 bildenden Einrichtung zum Schutz von Fernmeldeanlagen gegen Überspannungen dar. Die in diesem Patent beschriebene Einrichtung besteht darin, daß zwischen den beiden Adern einer Fernmeldeanlage eine oder mehrere Spannungssicherungen vorgesehen sind, deren elektrischer Mittelpunkt unmittelbar oder über eine Spannungssicherung mit Erde verbunden ist. In einer beispielsweisen Ausführangsform dieser Einrichtung sind die Spannungssicherungen durch eine geerdete Drossel miteinander verbunden. Die auftretenden Überspannungen werden über die Spannungssicherungen und die Drosselhälften zur Erde abgeleitet. Durch die Drossel wird ein gleichzeitiges und gleichmäßiges Ansprechen der beiden Sicherungen erzwungen und das Entstehen von Knallgeräuschen im Hörer vermieden.Device for eliminating disruptive influences on telecommunications systems by overvoltages The invention provides a further embodiment of the subject of the patent 5z9 899 forming device for the protection of telecommunications systems against Overvoltages. The device described in this patent consists of that between the two wires of a telecommunications system one or more voltage fuses are provided whose electrical center point directly or via a voltage fuse connected to earth. In an exemplary embodiment of this facility the voltage fuses are connected to one another by an earthed choke. The overvoltages that occur are controlled by the voltage fuses and the throttle halves derived to earth. The throttle creates a simultaneous and uniform Forced response of the two fuses and the creation of popping noises avoided in the handset.

Es kann nun vorkommen, daß in besonders ungünstigen Fällen die Spannungssicherungen überlastet werden. Um dies zu verhindern, werden erfindungsgemäß in jede Ader zwei Spannungssicherungen eingeschaltet, wobei gleichzeitig dafür gesorgt wird, daß sowohl die an derselben Ader liegenden Sicherungen als auch die Sicherungen beider Adern gleichzeitig und gleichmäßig ansprechen. Zu diesem Zwecke werden die beiden zu jeder Ader gehörigen Sicherungen durch j e eine als Stromteiler wirkende Drossel gekoppelt, und die Mitten dieser Drosseln werden durch eine in der Mitte geerdete Drossel verbunden. An Stelle von zwei Sicherungen können auch mehr als zwei Sicherungen pro Ader verwendet werden.It can now happen that in particularly unfavorable cases the voltage fuses become overloaded. In order to prevent this, according to the invention there are two in each wire Voltage fuses switched on, at the same time it is ensured that both the fuses on the same wire as well as the fuses of both wires address simultaneously and evenly. To this end, the two become each Corresponding fuses are coupled by a choke acting as a current divider, and the centers of these reactors are connected by a reactor grounded in the center. Instead of two fuses, more than two fuses per wire can be used will.

In der Zeichnung ist eine beispielsweise Ausführungsform der Schutzeinrichtung dargestellt. Mit der Ader i sind die Spannungssicherungen 3 und q. verbunden, die durch die Drossel 5 miteinander gekoppelt sind. An der Ader 2 liegen die Spannungssicherungen 6 und 7, die durch eine Drossel 8 gekoppelt sind. Die Mitten der Drosseln 5 und 8 sind zu einer Drossel 9 geführt, deren Mittelpunkt geerdet ist.In the drawing is an example embodiment of the protective device shown. The voltage fuses 3 and q are connected to wire i. connected that are coupled to one another by the throttle 5. The voltage fuses are on wire 2 6 and 7, which are coupled by a throttle 8. The centers of the throttles 5 and 8 are led to a throttle 9, the center of which is grounded.

Es ist auch möglich, abweichend von der Zeichnung, zunächst je zwei an verschiedenen Adern liegende Spannungssicherungen, etwa 3 und 6 bzw. ¢ und 7, durch je eine Drossel zu koppeln und die Mitten dieser Drosseln zu einer weiteren Drossel g zu führen, deren Mittelpunkt geerdet ist.It is also possible, notwithstanding the drawing, initially two at a time Voltage fuses on different wires, e.g. 3 and 6 or ¢ and 7, by coupling one throttle each and the middle of these throttles to another To lead choke g, the center of which is grounded.

Sollen mehr als zwei Spannungssicherungen je Ader verwendet werden, z. B. je vier, so werden diese zweckmäßig erst paarweise durch Drosseln gekoppelt, diese Drosseln durch je eine weitere, an ihre Mitten angeschlossene Drossel gekoppelt und endlich diese letzteren in derselben Weise wie die Drosseln 5 und 8 der Zeichnung durch eine weitere, in der Mitte geerdete Drossel, entsprechend 9, gekoppelt. Es ist aber auch möglich, zunächst zwei Spannungssicherungen durch eine Drossel zu koppeln, diese mit einer weiteren Spannungssicherung durch eine zweite Drossel, diese mit der vierten Spannungssicherung durch eine dritte Drossel; die dritten Drosseln beider Adern werden dann wieder durch eine in der Mitte geerdete Drossel gekoppelt. Hierbei dürfen jedoch die zweite und dritte Drossel nicht in der Mitte angezapft werden, sondern im Verhältnis i : 2 bzw. i : 3. Diese Anordnung kann bei beliebiger Anzahl der Spannungssicherungen je Ader benutzt werden. Auch sind Kombinationen beider Schaltungsarten möglich.If more than two voltage fuses are to be used per wire, z. B. four, these are expediently coupled in pairs by throttles, these chokes are coupled by a further choke connected to their centers and finally these latter in the same way as the throttles 5 and 8 of the drawing coupled by a further choke grounded in the middle, corresponding to 9. It but it is also possible to first connect two voltage fuses with a choke couple this with a further voltage fuse through a second choke, this with the fourth voltage fuse through a third choke; the third Both cores are then choked again by a choke that is grounded in the middle coupled. However, the second and third chokes must not be in the middle be tapped, but in the ratio i: 2 or i: 3. This arrangement can be used at Any number of voltage fuses per wire can be used. There are also combinations both types of circuit possible.

Claims (1)

PATENTANSPRUCH: Einrichtung zur Beseitigung von störenden BeeinflussungenvonFernmeldeanlagen durch Überspannungen nach Patent 5ig 899, dadurch gekennzeichnet, daß an jede Ader zwei oder mehr Spannungssicherungen (3 und q. bzw. 6 und 7) angeschlossen sind, die durch je eine Drossel (5 bzw. 8) miteinander gekoppelt sind, wobei die Mitten dieser Drosseln (5 und 8) mit einer in der Mitte geerdeten Drossel (9) verbunden sind.PATENT CLAIM: Device for eliminating disruptive influences on telecommunication systems by overvoltages according to Patent 5ig 899, characterized in that two or more voltage fuses (3 and q. Or 6 and 7) are connected to each wire, each of which is connected by a choke (5 or 8 ) are coupled to one another, the centers of these chokes (5 and 8) being connected to a choke (9) grounded in the middle.
DEA58920D 1925-04-02 Device for the elimination of disruptive influences on telecommunications systems due to overvoltages Expired DE536904C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA58920D DE536904C (en) 1925-04-02 Device for the elimination of disruptive influences on telecommunications systems due to overvoltages

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA58920D DE536904C (en) 1925-04-02 Device for the elimination of disruptive influences on telecommunications systems due to overvoltages
DE613840X 1925-04-02

Publications (1)

Publication Number Publication Date
DE536904C true DE536904C (en) 1931-10-28

Family

ID=25945581

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA58920D Expired DE536904C (en) 1925-04-02 Device for the elimination of disruptive influences on telecommunications systems due to overvoltages

Country Status (1)

Country Link
DE (1) DE536904C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146153B (en) * 1959-07-31 1963-03-28 Siemens Ag Cable system protected against the effects of heavy current and atmospheric discharges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146153B (en) * 1959-07-31 1963-03-28 Siemens Ag Cable system protected against the effects of heavy current and atmospheric discharges

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