DE454325C - Reinforcement for single-core AC cables - Google Patents
Reinforcement for single-core AC cablesInfo
- Publication number
- DE454325C DE454325C DEF59122D DEF0059122D DE454325C DE 454325 C DE454325 C DE 454325C DE F59122 D DEF59122 D DE F59122D DE F0059122 D DEF0059122 D DE F0059122D DE 454325 C DE454325 C DE 454325C
- Authority
- DE
- Germany
- Prior art keywords
- reinforcement
- cable
- core
- cables
- armouring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/26—Reduction of losses in sheaths or armouring
Landscapes
- Insulated Conductors (AREA)
Description
. Bewehrung für Einleiterwechselstromkabel. Zusatz zum Patent 453848. Die vorliegende Erfindung betrifft eine weitere Ausbildung der in dem Hauptpatent vorgeschlagenen Mittel zur Verminderung der Induktionsströme in der Bewehrung von Einleiterwechselstronika.beln, nämlich der Einschaltung von Wechselstromwiderständen in die Bewehrung. Sie benutzt die Tatsache, daß die in der Bewehrung induzierte Spannung proportional mit der Länge des Kabels zunimmt, und daß deshalb bei Aufteilung der Bewehrung in einzelne voneinander isolierte Längenabschnitte die in diesen induzierten Teilspannungen um so kleiner sind, je kürzer die Abschnitte sind. Sind die Abschnitte kurz genug, so bleiben die in ihnen induzierten Teilspannungen unterhalb derjenigen Grenze, bei welcher die aus der Bewehrung durch die Jutebewickiung in die Erde dringenden Ströme zu Störungen Anlaß geben können. Um dieses Ziel zu erreichen, genügt meist die Unterteilung der Bewehrung einer Fabrikationslänge des Kabels in zwei voneinander isolierte Unterabschnitte. In jedem Falle soll aber nach der Erfindung die Zahl der Unterabschnitte, in welche die Bewehrung jeder Fabrikationslänge des Kabels zerteilt wird, so groß gemacht werden, daß schädliche Störungsströme nicht mehr auftreten.. Armouring for single-core AC cables. Addendum to patent 453848. The present invention relates to a further embodiment of that in the main patent proposed means of reducing the induction currents in the reinforcement of Einleiterwechselstronika.beln, namely the switching on of alternating current resistors into the reinforcement. It uses the fact that it is induced in the reinforcement Voltage increases proportionally with the length of the cable and that is why it is split of the reinforcement into individual lengths that are isolated from each other Partial voltages are smaller, the shorter the sections are. Are the sections short enough, the partial voltages induced in them remain below those Limit at which those from the reinforcement penetrate into the earth through the jute wrapping Currents can give rise to disturbances. In order to achieve this goal, it is usually enough the division of the armouring of a manufacturing length of the cable into two of each other isolated subsections. In any case, however, according to the invention, the number the subsections in which the armouring of each fabrication length of the cable is divided, made so large that harmful interference currents are no longer appear.
Urr, den Isolationswiderstand an den Trennstellen dauernd genügend hoch zu halten, wird die Trennstelle mit einer Schicht isolierender Vergußmasse umgeben, über der zum Schutze des Kabels ein beispielsweise aus zwei Hälften bestehender Muffenmantel aufgebracht wird.Urr, the insulation resistance at the separation points is always sufficient To keep it high, the separation point is covered with a layer of insulating potting compound surrounded, over which to protect the cable, for example, consisting of two halves Sleeve jacket is applied.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF59122D DE454325C (en) | 1925-06-14 | 1925-06-14 | Reinforcement for single-core AC cables |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF59122D DE454325C (en) | 1925-06-14 | 1925-06-14 | Reinforcement for single-core AC cables |
Publications (1)
Publication Number | Publication Date |
---|---|
DE454325C true DE454325C (en) | 1928-01-05 |
Family
ID=7108727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF59122D Expired DE454325C (en) | 1925-06-14 | 1925-06-14 | Reinforcement for single-core AC cables |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE454325C (en) |
-
1925
- 1925-06-14 DE DEF59122D patent/DE454325C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3180794B1 (en) | Electrical cable | |
DE454325C (en) | Reinforcement for single-core AC cables | |
DE2018981C3 (en) | Multi-phase generator | |
DE1563483A1 (en) | Control device for a converter circuit with a large number of thyristors connected in series | |
DE434739C (en) | Method for diverting the lead-jacket currents in single-conductor AC cables | |
AT107227B (en) | Armouring for single-core AC cables. | |
DE581791C (en) | Multi-phase power transmission system | |
DE524873C (en) | Bushing isolator with induction device for feeding low-voltage devices from high-voltage networks | |
AT105261B (en) | Method and device for diverting lead-jacket currents in single-core AC cables. | |
DE613634C (en) | Protection arrangement for aerial cables that are exposed to the influence of neighboring high-voltage lines | |
DE514871C (en) | Electric cable | |
DE449928C (en) | Arrangement of the outward and return lines of low current overhead lines | |
DE598398C (en) | Arrangement for the local reduction of additional losses in lead coats of single-core cables in places with unfavorable cooling conditions | |
DE1440919A1 (en) | Arrangement for diverting currents or voltages induced in cable sheaths of single-pole electrical cables | |
DE481907C (en) | Protective conductor for low current lines | |
DE397819C (en) | Protective device against overvoltages in AC networks caused by earth faults | |
DE642416C (en) | Multi-phase power transmission system for high AC voltages through single-conductor cables | |
DE3237919A1 (en) | Circuit for protecting telecommunication cables against external current interference | |
DE352857C (en) | Electric overhead line | |
DE407492C (en) | Telephone cables | |
DE545696C (en) | Electrothermal melting furnace for multi-phase currents | |
DE455819C (en) | Device for reducing the currents induced in telecommunication lines by neighboring power lines according to the compensation method | |
DE595177C (en) | Device for connecting consumers, in particular those with low power requirements, to a high-voltage network or a high-voltage line with the aid of transformers | |
DE633815C (en) | Neutral high-voltage cables with main conductors stranded within a lead sheath | |
DE602818C (en) | Telecommunication cables with electrostatic protective sleeves |