AT116690B - Device to protect electrical system parts, such as transformers, against surge waves. - Google Patents

Device to protect electrical system parts, such as transformers, against surge waves.

Info

Publication number
AT116690B
AT116690B AT116690DA AT116690B AT 116690 B AT116690 B AT 116690B AT 116690D A AT116690D A AT 116690DA AT 116690 B AT116690 B AT 116690B
Authority
AT
Austria
Prior art keywords
transformers
electrical system
system parts
protect electrical
against surge
Prior art date
Application number
Other languages
German (de)
Inventor
Franz Dr Ing Moeller
Otto Dipl Ing Westermann
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 AT116690B publication Critical patent/AT116690B/en

Links

Landscapes

  • Suspension Of Electric Lines Or Cables (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung, um elektrische Anlagenteile, wie Transformatoren, gegen Sprungwellen zu schützen. 



   In elektrischen Kraftübertragungsanlagen sind insbesondere die Überspannungen gefährlich, die als sogenannte Wanderwellen mit steiler Stirn über die Leitung laufen. Beim Eindringen in Wicklungen, z. B. von Transformatoren, rufen solche Wanderwellen zwischen den Wicklungsteilen gefährliche Spannungsunterschiede hervor. 



   Diese Gefährdung durch Sprungwellen wird dadurch beseitigt, dass die steilen Köpfe solcher Wellen abgeflacht werden. Hiezu wird erfindungsgemäss die Fernleitung vor dem Einmünden in die Stationen, in der die zu schützenden Apparate, wie Transformatoren, stehen, auf eine verhältnismässig kurze Strecke aus Leitern mit hoher   Strom verdrängung   hergestellt. Mit Vorteil kann hiezu ein Leiter aus magnetischem Baustoff verwendet werden. 



   Ist nicht der ganze Leiterquerschnitt magnetisches Material, so können geringe, zentrische Querschnittsteile aus unmagnetischem Stoff bestehen. Die bekannten Stahlaluminiumseile genügen bei einer Anordnung gemäss der Erfindung für die erstrebte Abflachung der Stirn der Wanderwellen nicht. Sowohl bei Kabeln wie beiFreileitungen muss insbesondere der äussere Teil des Leiterquerschnittes aus magnetischem Stoff,   z.   B. Eisenseilen, bestehen. 



   Die Länge der aus Leitern mit hoher Stromverdrängung bestehenden Strecken hängt von verschiedenen Umständen ab, insbesondere davon, wie hoch die Stromverdrängung des Leiters bei hochfrequentem Wechselstrom ist. Im allgemeinen sind schon Strecken von 50 m Länge aus Eisendraht wirksam. Es wird nur selten nötig sein, mehr als einige hundert Meter   Leitungslänge   aus Leitern mit hoher   Strom Verdrängung   herzustellen. 

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



   <Desc / Clms Page number 1>
 



  Device to protect electrical system parts, such as transformers, against surge waves.



   In electrical power transmission systems, the overvoltages that run over the line as so-called traveling waves with steep foreheads are particularly dangerous. When entering windings, e.g. B. from transformers, such traveling waves cause dangerous voltage differences between the winding parts.



   This risk of jumping waves is eliminated by flattening the steep heads of such waves. For this purpose, according to the invention, the long-distance line is made from conductors with a high current displacement over a relatively short distance before it flows into the stations in which the apparatus to be protected, such as transformers, are located. A conductor made of magnetic building material can advantageously be used for this purpose.



   If the entire conductor cross-section is not magnetic, small, central cross-sectional parts can consist of non-magnetic material. In an arrangement according to the invention, the known steel-aluminum cables are not sufficient for the desired flattening of the forehead of the traveling waves. Both in the case of cables and overhead lines, in particular the outer part of the conductor cross-section must be made of magnetic material, e.g. B. iron ropes exist.



   The length of the lines consisting of conductors with high current displacement depends on various circumstances, in particular on how high the current displacement of the conductor is in the case of high-frequency alternating current. In general, lengths of iron wire as long as 50 m are effective. It will only seldom be necessary to produce cables with a high current displacement of more than a few hundred meters.

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

 

Claims (1)

PATENT-ANSPRUCH : Sprungwellenschutz für elektrische Anlagen, dadurch gekennzeichnet, dass zum Zwecke der stärkeren Stromverdrängung der hochfrequenten Ströme bei möglichst geringer Stromverdrängung der niederfrequenten Ströme verhältnismässig kurze Strecken der vor dem zu schützenden Teil liegenden Leiter aus magnetischem Material, z. B. Eisen, bestehen. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Jump wave protection for electrical systems, characterized in that for the purpose of stronger current displacement of the high-frequency currents with the lowest possible current displacement of the low-frequency currents, relatively short distances of the conductor made of magnetic material in front of the part to be protected, e.g. B. iron exist. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT116690D 1926-03-04 1927-02-19 Device to protect electrical system parts, such as transformers, against surge waves. AT116690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE116690X 1926-03-04

Publications (1)

Publication Number Publication Date
AT116690B true AT116690B (en) 1930-03-10

Family

ID=5654817

Family Applications (1)

Application Number Title Priority Date Filing Date
AT116690D AT116690B (en) 1926-03-04 1927-02-19 Device to protect electrical system parts, such as transformers, against surge waves.

Country Status (1)

Country Link
AT (1) AT116690B (en)

Similar Documents

Publication Publication Date Title
AT116690B (en) Device to protect electrical system parts, such as transformers, against surge waves.
CH124852A (en) Device to protect electrical system components, such as transformers, against surge waves.
DE834874C (en) transformer
AT153121B (en) Strip conductor with a web connecting the individual wires.
AT100636B (en) Induction protection for low-voltage cables laid alongside electrical tracks.
AT122882B (en) Telecommunication cable with reduced interference in lines within the cable that are particularly sensitive to interference voltages.
DE514871C (en) Electric cable
AT220679B (en) Device for the protection of telecommunication cables against inductive influences from high-voltage systems
AT105261B (en) Method and device for diverting lead-jacket currents in single-core AC cables.
DE547398C (en) Line system for the high-voltage side of electrical ignition systems
AT135278B (en) Device for eliminating inductive interference in low-voltage cables from neighboring high-voltage lines.
AT102894B (en) Wire armouring for single-core AC cables.
AT130547B (en) Telecommunication cables.
AT124198B (en) Transformer with built-in jump wave protection.
DE397046C (en) Current transformer arrangement with protection against overcurrents, especially short-circuit currents
DE491987C (en) Single high voltage cable
DE1243776B (en) Current transformer for a metal-enclosed high-voltage switchgear that is fully insulated with plastic
DE434739C (en) Method for diverting the lead-jacket currents in single-conductor AC cables
AT122388B (en) Process for increasing the current carrying capacity of aerial cables.
AT154822B (en) Corona protection from a conductive coating on high-voltage machines.
CH289902A (en) Cable with electrical auxiliary equipment connected to it.
DE357229C (en) Fastening device for electrical coils on insulating cylinders
DE453946C (en) Device for the protection of low-voltage cables along electrical railways against inductive effects of the driving current
AT96420B (en) Arrangement for the protection of low-voltage cables along electrical railways against the inductive effect of the driving current.
DE436004C (en) Differential protection system for electrical machines, transformers, lines, etc. Like. Using a current transformer on each side of the system to be protected