DE353373C - Arrangement for telegraphy and telephony with high frequency currents on lines - Google Patents
Arrangement for telegraphy and telephony with high frequency currents on linesInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits 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)
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) |
-
1919
- 1919-05-29 DE DE1919353373D patent/DE353373C/en not_active Expired
-
1920
- 1920-07-07 GB GB19350/20A patent/GB147447A/en not_active Expired
- 1920-07-07 GB GB19378/20A patent/GB147464A/en not_active Expired
- 1920-10-22 GB GB29931/20A patent/GB154884A/en not_active Expired
-
1921
- 1921-09-02 GB GB23437/21A patent/GB169691A/en not_active Expired
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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