AT130533B - Line protection by means of high frequency current. - Google Patents
Line protection by means of high frequency current.Info
- Publication number
- AT130533B AT130533B AT130533DA AT130533B AT 130533 B AT130533 B AT 130533B AT 130533D A AT130533D A AT 130533DA AT 130533 B AT130533 B AT 130533B
- Authority
- AT
- Austria
- Prior art keywords
- frequency current
- high frequency
- line protection
- current
- auxiliary voltage
- Prior art date
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
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Leitungsschutz mittels Hoefrequenzstrom.
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nicht auch vom Betriebsstrom durchflossen werden, sind den Feldwicklungen 39 und 40 Sperrkondensatoren 41 und 42 vorgeschaltet. Die Antriebsmotoren der Generatoren 31 und 38 sind schematisch angedeutet bei 43 und 44 und können an sich beliebiger Art sein.
Wie leicht einzusehen ist, entspricht die Spannung, welche die Kommutatorwechselstromgene- ratoren hervorbringen, genau dem durch die Feldmagnetwicklungen 39 und 40 fliessenden Strom. Dies
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frequenzstrom fliesst vom Generator 30 aber die Feldmagnete 39 und 40 der Generatoren 37 und 38. Ein diesem Erregerstrom vollkommen entsprechender Strom wird von den Generatoren 37 und 38 hervor-
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rigkeiten, die gleiche Frequenz in einem beliebig grossen Leitungsnetz zur Anwendung zu bringen.
PATENT-ANSPRÜCHE :
1. Schutzeinrichtung für elektrische Energieverteilungsnetze, bei welcher der zu schützenden Leitung eine Hilfsspannung netzfremder Frequenz aufgedrückt wird, dadurch gekennzeichnet, dass für die Erzeugung der Hilfsspannung in irgendeinem Abschnitt des Netzes eine Hilfsstromquelle angeordnet ist, die in den andern Netzabschnitten angeordnete Verstärkereinrichtungen steuert.
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Line protection by means of high frequency current.
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are not also flowed through by the operating current, blocking capacitors 41 and 42 are connected upstream of the field windings 39 and 40. The drive motors of the generators 31 and 38 are indicated schematically at 43 and 44 and can be of any type.
As can easily be seen, the voltage which the commutator alternating current generators produce corresponds exactly to the current flowing through the field magnet windings 39 and 40. This
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frequency current flows from the generator 30 but the field magnets 39 and 40 of the generators 37 and 38. A current completely corresponding to this excitation current is produced by the generators 37 and 38.
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the ability to use the same frequency in a network of any size.
PATENT CLAIMS:
1. Protection device for electrical power distribution networks, in which the line to be protected is impressed with an auxiliary voltage of non-network frequency, characterized in that an auxiliary power source is arranged for generating the auxiliary voltage in any section of the network, which controls amplifier devices arranged in the other network sections.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US130533XA | 1929-07-05 | 1929-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT130533B true AT130533B (en) | 1932-11-25 |
Family
ID=21758060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT130533D AT130533B (en) | 1929-07-05 | 1930-07-05 | Line protection by means of high frequency current. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT130533B (en) |
-
1930
- 1930-07-05 AT AT130533D patent/AT130533B/en active
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