AT92999B - Circuit for electrical line networks. - Google Patents

Circuit for electrical line networks.

Info

Publication number
AT92999B
AT92999B AT92999DA AT92999B AT 92999 B AT92999 B AT 92999B AT 92999D A AT92999D A AT 92999DA AT 92999 B AT92999 B AT 92999B
Authority
AT
Austria
Prior art keywords
circuit
electrical line
line networks
transformers
short
Prior art date
Application number
Other languages
German (de)
Original Assignee
Aeg
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 Aeg filed Critical Aeg
Application granted granted Critical
Publication of AT92999B publication Critical patent/AT92999B/en

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  • Supply And Distribution Of Alternating Current (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Schaltung für elektrische   Yeitungsnetze.   



   Bei kleinen   Elektrizitätswerken   oder Transformatorenstationen besteht die   Gefahr,   dass die eingebauten   Ölschalter   die   Kurz-chlussleistung   nicht zu bewältigen vermögen, sobald sie einem grösseren Kraftwerk parallel geschaltet werden. 



   Man hat bereits die Notwendigkeit zu vermeiden gesucht, beim   Anschluss   an ein grösseres Kraftwerk die vorhandenen   Ölschalter auszubauen   und durch neue zu ersetzen. Die bisher für diesen Zweck bekannten Einrichtungen erfordern den Einbau einer besonderen Reaktanzspule, die im normalen Belrieb kurzgeschlossen ist und erst beim Eintritt eines Überstromes durch Öffnen eines Olschaltel s oder auf sonstige Weise in die Leitung eingeschaltet wird. 



   Die Erfindung macht die Einschaltung einer   solchen Reaktanzspule bei Leitungsnetzen,   die über mehrere parallel geschaltete Transformatoren an das Kraftwerk angeschlossen sind,   überflüssig.   Sie besteht darin, dass die abzuschaltende Kurzschlusslei-tung auf mehrere Ölschalter verteilt wird und zu diesem Zweck im Fall eines Kurzschlusses eine genügende Anzahl von Transformatoren selbsttätig abgeschaltet werden, derart, dass eine Gefährdung der   vorhandenen Öischaltcr nicht   eintreten kann, dass aber mindestens ein Transformator auf jeden Fall eingeschaltet bleibt.

   Nach Beseitigung des Kurzschlusses wird der normale Betrieb entweder selbsttätig oder von Hand dadurch hergestellt, dass die während des Kurzschlusses abgeschalteten Transformatoren wieder eingeschaltet werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Circuit for electrical wiring networks.



   In the case of small power stations or transformer stations, there is a risk that the built-in oil switches will not be able to cope with the short-circuit power as soon as they are connected in parallel to a larger power station.



   One has already tried to avoid the need to remove the existing oil switches and replace them with new ones when connecting to a larger power plant. The devices previously known for this purpose require the installation of a special reactance coil, which is short-circuited in normal operation and is only switched on when an overcurrent occurs by opening an oil switch or in some other way in the line.



   The invention makes it unnecessary to switch on such a reactance coil in line networks that are connected to the power plant via several transformers connected in parallel. It consists in the fact that the short-circuit line to be disconnected is distributed over several oil switches and, for this purpose, in the event of a short circuit, a sufficient number of transformers are automatically disconnected in such a way that the existing oil switches cannot be endangered, but at least one transformer is activated remains switched on in any case.

   After the short-circuit has been eliminated, normal operation is restored either automatically or manually by switching on the transformers that were switched off during the short-circuit.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Schaltung für elektrische Leitungsnetze, die über mehrere parallel geschaltete Transformatoren an das Kraftwerk angeschlossen sind, dadurch gekennzeichnet, dass beim Auftreten eines Kurzschlusses eine genügende Anzahl Transformatoren selbsttätig abgeschaltet wird, derart, dass eine Gefährdung der vorhandenen Ölschalter nicht eintreten kann. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Circuit for electrical line networks that are connected to the power plant via several transformers connected in parallel, characterized in that when a short circuit occurs, a sufficient number of transformers is automatically switched off in such a way that the existing oil switch cannot be endangered. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT92999D 1921-05-03 1922-05-02 Circuit for electrical line networks. AT92999B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE92999X 1921-05-03

Publications (1)

Publication Number Publication Date
AT92999B true AT92999B (en) 1923-06-11

Family

ID=5644438

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92999D AT92999B (en) 1921-05-03 1922-05-02 Circuit for electrical line networks.

Country Status (1)

Country Link
AT (1) AT92999B (en)

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