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
Application number
Other languages
German (de)
Original Assignee
Siemens 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.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT130533B publication Critical patent/AT130533B/en

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  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Leitungsschutz mittels Hoefrequenzstrom. 
 EMI1.1 
 

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 EMI2.1 
 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 
 EMI2.2 
 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- 
 EMI2.3 
 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.
 EMI1.1
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 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
 EMI2.2
 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.
 EMI2.3
 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)

2. Anordnug nach Anspruch 1, dadurch gekennzeichnet, dass die Steuerung der Verstärker durch den von der einen Hilfsspannungsquelle ausgehenden, dem Betriebsstrom überlagerten Hilisstrom bewirkt wird. 2. Anordnug according to claim 1, characterized in that the control of the amplifier is effected by the auxiliary voltage source emanating from the auxiliary voltage source and superimposed on the operating current. 3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die verteilt im Netz angeordneten Verstärkereinrichtungen Wechselstromgeneratoren sind, deren Feldwicklung von einem vom Hauptgenerator hervorgerufenen Hochfrequenzstrom erregt wird und die durch an sich beliebige Antriebsmittel angetrieben werden. EMI2.4 3. Device according to claim 1, characterized in that the amplifier devices distributed in the network are alternating current generators, the field winding of which is excited by a high-frequency current produced by the main generator and which are driven by any drive means. EMI2.4
AT130533D 1929-07-05 1930-07-05 Line protection by means of high frequency current. AT130533B (en)

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)

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