DE353373C - Arrangement for telegraphy and telephony with high frequency currents on lines - Google Patents

Arrangement for telegraphy and telephony with high frequency currents on lines

Info

Publication number
DE353373C
DE353373C DE1919353373D DE353373DA DE353373C DE 353373 C DE353373 C DE 353373C DE 1919353373 D DE1919353373 D DE 1919353373D DE 353373D A DE353373D A DE 353373DA DE 353373 C DE353373 C DE 353373C
Authority
DE
Germany
Prior art keywords
lines
high frequency
telephony
arrangement
telegraphy
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
DE1919353373D
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.)
Telefunken AG
Original Assignee
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Application granted granted Critical
Publication of DE353373C publication Critical patent/DE353373C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • H04B3/56Circuits for coupling, blocking, or by-passing of signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radar Systems Or Details Thereof (AREA)

Description

AUSGEGEBEN AM 16. MAI 1922ISSUED ON MAY 16, 1922

- JVl 353373 KLASSE 21 a^RUPPE- JVl 353373 CLASS 21 a ^ GROUP

Es ist bekannt, daß die Übertragung elektrischer Schwingungen längs Leitungen Vorteile mit sich bringt, die insbesondere in einer großen Energieersparnis für den Sender unld in der Vermeidung von Störungen für die Umgebung bestehen. Der Mitbenutzung vorhandener Leitungen, z. B. Telegraphenlinien, insbesondere aber der Starkstromverteilungsnetze und Hochspannungsfernleitatigen für die Hochfreqenztelegraphie und -telephonie, steht jddtoeh die Schwierigkeit entgegen, daß Zwischenstationen, d. h. Stellen, an dfenen Verbrauchsapparate beliebiger Art eingeschaltet sind, einen erheblichen Betrag der Schwingungsenergie vernichten. Es ist nun zur Überbrückung von Zwischenstationen, um über diese hinweg telephbnieren zu können, z. B. bei aus Teilstrecken zusammengesetzten Telegraphenleitungen, vonge-It is known that the transmission of electrical vibrations along lines has advantages brings with it, in particular in a large energy saving for the transmitter unld consist in avoiding disturbances to the environment. The shared use of existing lines, e.g. B. Telegraph lines, but especially the power distribution networks and high-voltage transmission lines for high-frequency telegraphy and telephony, jddtoeh is the difficulty contrary to intermediate stations, d. H. Place at any consumer equipment Art are switched on, destroy a significant amount of the vibrational energy. It is now used to bridge intermediate stations in order to telephonize them to be able to, e.g. B. in the case of telegraph lines composed of sections, from

ao schlagen worden, zur Verminderung dieser Verluste Überbrückungskondensatoren anzuschließen, welche für Gleichstrom sich wie Isolatoren verhalten, dagegen für Hochfrequenzströme nur einen geringen Widerstandao suggest connecting bypass capacitors to reduce these losses, which behave like isolators for direct current, but for high-frequency currents only a slight resistance

as darstellen. Diese Hilfsmittel sind aber z. B. bei Starkstrom- und Hochspannungsleitungen nicht anwendbar urid in elektrischer Beziehung, nämlich für die Hochfrequenz, nicht einwandfrei, da z. B. durch ihre Verwendung in vielen Fällen die Kapazität der Leitungen gegen Erde vergrößert wild. Auch die ebenfalls bekannt gewordenen Übenbrückungen mittels Translatoren sind ni'cht anwendbar, da diese ebenso wie die kapazitiven mehr oder weniger wie ein Kurzschluß für die an den Überbrückungsstellen liegenden Starkstromabzweiguogen wirken.as represent. However, these tools are z. B. not applicable to power and high voltage lines and in electrical relation, namely for the high frequency, not flawless, since z. B. through their use in many cases the capacity of the lines to earth increases wildly. That too known bridging by means of translators are not applicable, since these as well as the capacitive more or less like a short circuit for the at The high voltage branches located at the bridging points have an effect.

Gemäß vorliegender Erfindung wiifd in Fällen, wo Zwischenstationen in den Leitungen eingeschaltet sind, z. B. bei Abgabe einer Leitung bei Starkstrom, zsur Einfügung von Empfangsapparaten bei Schwachstrom, für Verteilungs- unld Verzweiguingszwecke u. dgl. m., längs undi parallel der Leitung eine von der Hauptleitung isolierte Hilfsleitung nach Art eines horizontalen Luftleiters der drahtlosen Telegraphie in geringen Abständen, aber völlig isoliert von dieser angebracht.According to the present invention, in Cases where intermediate stations are switched on in the lines, e.g. B. when submitting a Line with high current, for the insertion of receiving devices with low current, for distribution and branching purposes and the like, along and parallel to the line an auxiliary line insulated from the main line in the manner of a horizontal line Air duct of wireless telegraphy at short intervals but completely isolated from this attached.

Diese Überbrückungsleiter verhalten sich dann ähnlich wie die bisherigen Kondensatoren, nur daß jede Isolatibnsschwierigkeit und jede Gefährdung des Betriebes bei dieser Ausführung fortfällt und auch in bezug auf die Erdkapazität günstigere Bedingungen erzielt werden. Diese Überbrückungsleiter weiden je nach der Periodenzahl der Hochfrequenz vtnä nach der Art der Oberleitung als einfache oder mehrfache Parallelleiter ausgeführt, die sich über einige bis Hunderte von Metern parallel zur Freileitung erstrekken. Bei Verzweigungsstellen der Leitungen werden mehrere Überbrückungsleiter angewendet. Diese antennenartigen Überbrükkungsleiter haben den Vorteil, daß die Dämpfung sehr klein ist, was besonders bei Hochfrequenztelephonie sehr wesentlich ist, und ferner, daß zu ihrer Anwendung d'ie vorhandenen Anlagen in keiner Weise geändert zu weiden brauchen. Sie können unmittel·These bridging conductors then behave similarly to the previous capacitors, only that any insulation difficulty and any risk to operation are omitted with this design and more favorable conditions are also achieved with regard to the earth capacitance. Depending on the number of periods of the high frequency vtnä, these bridging conductors are designed as single or multiple parallel conductors, depending on the type of overhead line, which extend over a few to hundreds of meters parallel to the overhead line. Several bridging conductors are used at branch points of the lines. These antenna-like bridging conductors have the advantage that the attenuation is very small, which is very important especially in the case of high-frequency telephony, and further that the existing systems do not need to be changed in any way for their use. You can immediately

Claims (1)

bar an den Hauptmasten einer Stark- ■ nen o. dgl., Einzel- oder VielfachleiterBar on the main mast of a strong ■ ■ or the like, single or multiple ladder Stromoberleitung montiert werden. parallel zu den von der Hochfrequenz-Overhead power line to be installed. parallel to the high frequency _ . . energie benutzten Starkstrom- oder_. . energy used high voltage or Patent-Ansprüche: Schwachstromleitungen und isoliert vonPatent Claims: Low power lines and isolated from i. Anordnung für Telegraphic und diesen angeordnet sind.i. Arrangement for Telegraphic and these are arranged. Telephonie mit Hochfrequenzströmen auf : 2. Anordnung nach Anspruch. 1, da-Leitungen, dadurch gekennzeichnet, daß durch gekennzeichnet, daß die Uberbrükzur Überbrückung von an diesen Leitun- 1 kungsleiter an den Hauptmasten der Leihen angeschlossenen Apparaten, Maschi- [ tung angebracht sind.Telephony with high frequency currents on : 2. Arrangement according to claim. 1, since lines, characterized in that by in that the bridging Uberbrükzur mounted effect of conductors in these Leitun- 1 connected to the main poles of the lending apparatus, machine [tung. BERLIN. GEDRUCKT IN DER HElCHSDItUCKEREl.BERLIN. PRINTED IN THE HElCHSDItUCKEREl.
DE1919353373D 1919-05-29 1919-05-29 Arrangement for telegraphy and telephony with high frequency currents on lines Expired DE353373C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE353373T 1919-05-29

Publications (1)

Publication Number Publication Date
DE353373C true DE353373C (en) 1922-05-16

Family

ID=33480561

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919353373D Expired DE353373C (en) 1919-05-29 1919-05-29 Arrangement for telegraphy and telephony with high frequency currents on lines

Country Status (2)

Country Link
DE (1) DE353373C (en)
GB (4) GB147447A (en)

Also Published As

Publication number Publication date
GB147447A (en) 1921-04-07
GB147464A (en) 1921-11-07
GB154884A (en) 1921-11-17
GB169691A (en) 1922-12-04

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