AT75285B - Device for securing the disconnection of certain lines in the event of overcurrent - Google Patents

Device for securing the disconnection of certain lines in the event of overcurrent

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Publication number
AT75285B
AT75285B AT75285DA AT75285B AT 75285 B AT75285 B AT 75285B AT 75285D A AT75285D A AT 75285DA AT 75285 B AT75285 B AT 75285B
Authority
AT
Austria
Prior art keywords
event
overcurrent
disconnection
securing
switches
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Schuckertwerke Gmbh
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 Schuckertwerke Gmbh filed Critical Siemens Schuckertwerke Gmbh
Application granted granted Critical
Publication of AT75285B publication Critical patent/AT75285B/en

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  • Emergency Protection Circuit Devices (AREA)

Description

  

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 Schalter n und o sicher zuerst auslösen. Dadurch wird ein Abschalten der nicht geföhrdeten Zweigleitungenverhindert. 
 EMI2.1 
   drosselnde   Wirkung bzw. das Verzehren von Energie durch Widerstände nicht störend bemerkbar machen. Da ferner die    energieverzehrenden'Elemente   nur im Störungsfall in Tätigkeit treten, brauchen sie nicht für den vollen   Dauerstrom bemessen   zu sein. Die   schnell auslösenden Maximal-   schalter der Überbrückungsleitung, welche isoliert zu montieren sind, können einfache und daher billige Schalter sein, denn sie schalten im   Störungsfall   nur den Spannungsabfall der energie-   verzehrenden Elemente   ab. 



   In Fig. 3 ist ein Ausführungsbeispiel der Erfindung schematisch gezeichnet. In der durch- 
 EMI2.2 
 



   Um   ein Wirksames Eingrenzen   des   Störungsgebietes   bei   schädlichen Überströmen   zu erhalten, müssen die schnell auslösenden Maximalschalter 16 bzw. 26 ebenso wie die Streckenschalter 13, 23, 33 und 43 mit vom   Spannungsrückgang. abhängiger Verzögerung ausgerüstet   werden, damit nur die beiden an den Enden der Störungsstrecke liegenden Schalter   auslösen.   



   In den Fig. 4 und 5 sind weitere Ausführungsmöglichkeiten der Erfindung dargestellt. 



  Hat man die Schaltung nach Fig. 4 ausgeführt und lösen die   Schalter 76 und 7J unmittelbar   nacheinander aus, während der Streckenschalter 23 geschlossen bleibt, dann fliesst der in der Zweigleitung 12 benötigte Strom durch das energieverzehrende Element 14 und vernrsacht 
 EMI2.3 
 Maximalschalter16schliessenkann. 



   Den gleichen Zweek erfüllt die Anordnung nach Fig. 5. Hier   ist der Streckensehalter 7.   als Umschalter ausgebildet und schliesst im   Auslösullgsfall   das energieverzehrende Element 14 
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 stand des beanspruchten Schutzes. 



   PATENT-ANSPRÜCHE : 1. Einrichtung zur Sicherung des Abschaltens nur der gefährdeten Strecke in Starkstrom- 
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   benachbarten Schaltern   künstlich vergrössert wird.



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 Trigger switches n and o safely first. This prevents the branch lines that are not at risk from being switched off.
 EMI2.1
   Do not disturb the throttling effect or the consumption of energy by resistances. Furthermore, since the energy-consuming elements only come into operation in the event of a fault, they do not need to be dimensioned for the full continuous current. The quick-release maximum switches of the bridging line, which must be installed insulated, can be simple and therefore cheap switches, because in the event of a fault they only switch off the voltage drop of the energy-consuming elements.



   In Fig. 3, an embodiment of the invention is shown schematically. In the through
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   In order to obtain effective delimitation of the fault area in the event of harmful overcurrents, the fast-triggering maximum switches 16 and 26 as well as the section switches 13, 23, 33 and 43 must also be affected by the voltage drop. dependent delay so that only the two switches located at the ends of the fault path trigger.



   4 and 5 show further possible embodiments of the invention.



  If the circuit according to FIG. 4 has been carried out and the switches 76 and 7J are triggered immediately one after the other while the section switch 23 remains closed, the current required in the branch line 12 flows through the energy-consuming element 14 and is ignored
 EMI2.3
 Maximum switch 16 can close.



   The arrangement according to FIG. 5 fulfills the same purpose. Here the track holder 7 is designed as a changeover switch and closes the energy-consuming element 14 in the event of a trip
 EMI2.4
 status of the protection claimed.



   PATENT CLAIMS: 1. Device to ensure that only the endangered route is switched off in
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   adjacent switches is artificially enlarged.

 

Claims (1)

2. Einrichtung nach Anspruch l, dadurch gekennzeichnet, dass die einer Zweigleitung zugeordneten Drosselspulen oder Ohmsche Widerstände durch schnell auslösende Maximal- EMI2.6 meiden. 2. Device according to claim l, characterized in that the choke coils or ohmic resistances assigned to a branch line by quickly triggering maximum EMI2.6 avoid. 3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Maximalschalter in entsprechender Weise wie die Trennschalter der Streckenabschnitte mit von der Spannung abhängiger Verzögerung ausgerüstet sind. 3. Device according to claim 2, characterized in that the maximum switches are equipped with a voltage-dependent delay in a manner corresponding to the disconnectors of the route sections. 4. Einrichtung nach Anspruch 2, gekennzeichnet durch das Ausbilden eines Strecken- chaltersals Umschalter, der im Auslösungsfalle die den Spannungsabfall erhöhenden Leitungelemente kurzschliesst. EMI2.7 4. Device according to claim 2, characterized by the formation of a line switch as a changeover switch which, in the event of a release, short-circuits the line elements increasing the voltage drop. EMI2.7
AT75285D 1914-03-07 1915-02-25 Device for securing the disconnection of certain lines in the event of overcurrent AT75285B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE75285X 1914-03-07

Publications (1)

Publication Number Publication Date
AT75285B true AT75285B (en) 1919-01-25

Family

ID=5637055

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75285D AT75285B (en) 1914-03-07 1915-02-25 Device for securing the disconnection of certain lines in the event of overcurrent

Country Status (1)

Country Link
AT (1) AT75285B (en)

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