EP2525370A1 - High frequency energy cable - Google Patents
High frequency energy cable Download PDFInfo
- Publication number
- EP2525370A1 EP2525370A1 EP11166236A EP11166236A EP2525370A1 EP 2525370 A1 EP2525370 A1 EP 2525370A1 EP 11166236 A EP11166236 A EP 11166236A EP 11166236 A EP11166236 A EP 11166236A EP 2525370 A1 EP2525370 A1 EP 2525370A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strands
- cable
- conductor
- frequency
- individual wires
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- 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
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
- H01B7/303—Conductors comprising interwire insulation
Definitions
- the present invention relates to a high-frequency power cable with a strand of electrically conductive individual wires and a jacket surrounding the individual wires as a conductor, each individual wire carries an insulating lacquer layer.
- High-frequency currents are used in particular in high-frequency technology, in which high-frequency currents are used for signal transmission.
- coaxial cables which have an inner conductor made of wire or stranded wire and an outer conductor made of a mesh.
- a cable with an inner conductor made of stranded wire is known, for example, from the Swiss patent CH 205040 known.
- the cable disclosed in the patent is suitable for transmitting powers of more than 100 kW at high voltages.
- high-frequency (HF) wires are also used in which the individual wires are insulated from one another by a layer of varnish, although they lead to the same potential. This can reduce or eliminate the effect of the skin effect. The total cross section of the conductor used for the current transport can thereby be increased.
- coaxial cables have been described with rigid conductors having a rigid inner conductor and a tube as the outer conductor.
- the invention has for its object to propose a high-frequency energy cable, with the currents of 300 A to 1500 A possible Streufeldarm and low loss can be transmitted.
- the high-frequency power cable has at least one pair of leads from which a stranded conductor and a stranded wire can be used as the return conductor and that the forward conductor and the return conductor of the stranded pair are bundled parallel to one another.
- the strands of a strand pair are laid parallel.
- the return and return conductors are brought together as closely as possible.
- a plurality preferably a maximum of four pairs of strands can be bundled.
- the bundle is preferably constructed so that it has a circular cross section as possible.
- the heat generated in the strands may no longer be dissipated optimally and / or the proximity effect will become stronger again.
- the forward conductors and return conductors are preferably connected to one another in an electrically conductive manner at the ends of the high-frequency energy cable according to the invention.
- cable lugs are used which are soldered and / or pressed. It is particularly advantageous if all individual wires are included in this connection, since otherwise reduces the available for the conduction of the current cross-section.
- a fabric hose is used as a mechanical protection.
- the fabric hose prevents damage to the insulation.
- the tube is preferably coarse mesh to allow ventilation to cool the strands.
- the strands can have 2000 to 4000 individual wires.
- the individual wires of the strands can have a cross section of 0.0157 mm 2 .
- the individual wires of the strands can be twisted and / or knotted.
- the cable is preferably designed for a current of 1 A to 1500 A.
- the rated current results in a mean current density of up to 8 A / mm 2 .
- a current conducted through the cable may have a frequency of 1 Hz to 150 kHz.
- the high-frequency cable 1 has eight high-frequency strands 2, 3, 2 ', 3', 2 “, 3", 2 “', 3”' on the strand pairs 2, 3; 2 ', 3'; 2 ", 3”; 2 “', 3”' are summarized.
- the high frequency strand consists of many individual wires 22 (eg 4000) insulated with varnish and braided so that each wire 22 covers each position in the strand 2, 3, 2 ', 3', 2 ", 3", 2 "'.
- the current-carrying area is increased to counteract the negative effects of the skin effect and proximity effect
- the stranded pairs 2, 3; 2 ', 3'; 2 ", 3"; 2 "', 3”' each comprise a strand, which is provided as a lead 2, 2 ', 2 ", 2"' and a stranded wire, which is provided as a return conductor 3, 3 ', 3 ", 3"'.
- the forward conductor and the return conductor of a stranded pair are parallel to each other and as close to each other as possible, so that no large stray fields form and the resulting losses remain small.
- the strands 2, 3, 2 ', 3', 2 ", 3", 2 “', 3”' are retracted into a coarse-meshed fabric tube, on the one hand a mechanical protection of the strands 2, 3, 2 ', 3', 2 “, 3", 2 “', 3”', in particular the sheaths 21 of the strands 2, 3, 2 ', 3', 2 ", 3", 2 "', 3”' and on the other hand by the mesh sufficient Draft allows for cooling the live parts.
- Fabric tube 4 of the cable 1 are the four pairs of leads 2, 3; 2 ', 3'; 2 ", 3"; 2 ''', 3 "' bundled as possible.
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Hochfrequenzenergiekabel mit einer Litze aus elektrisch leitenden Einzeldrähten und einem die Einzeldrähte umgebenden Mantel als Leiter, wobei jeder Einzeldraht eine isolierende Lackschicht trägt.The present invention relates to a high-frequency power cable with a strand of electrically conductive individual wires and a jacket surrounding the individual wires as a conductor, each individual wire carries an insulating lacquer layer.
Hochfrequente Ströme finden insbesondere in der Hochfrequenztechnik Verwendung, in der hochfrequente Ströme zur Signalübertragung verwendet werden.High-frequency currents are used in particular in high-frequency technology, in which high-frequency currents are used for signal transmission.
Zur Übertragung hochfrequenter Signale werden überwiegend Koaxialkabel verwendet, die einen inneren Leiter aus Draht oder Litze und einen äußeren Leiter aus einem Geflecht aufweisen. Ein Kabel mit einem inneren Leiter aus Litze ist zum Beispiel aus der Schweizer Patentschrift
In der Hochfrequenztechnik werden auch Hochfrequenzlitze (HF-Litze) verwendet, bei der die Einzeldrähte voneinander durch eine Lackschicht isoliert sind, obwohl sie gleiches Potential führen. Dadurch kann der Einfluss des Skin-Effekts verringert oder vermieden werden. Der für den Stromtransport verwendete Gesamtquerschnitt des Leiters kann dadurch erhöht werden.In high-frequency technology, high-frequency (HF) wires are also used in which the individual wires are insulated from one another by a layer of varnish, although they lead to the same potential. This can reduce or eliminate the effect of the skin effect. The total cross section of the conductor used for the current transport can thereby be increased.
Ferner sind Koaxialleitungen mit starren Leitern beschrieben worden, die einen starren inneren Leiter und ein Rohr als äußeren Leiter aufweisen.Further, coaxial cables have been described with rigid conductors having a rigid inner conductor and a tube as the outer conductor.
Es sind bisher keine Kabel bekannt, die hochfrequente Ströme mit großen Stromstärken von 300 A bis 1500 A leiten können.So far no cables are known which can conduct high-frequency currents with high currents of 300 A to 1500 A.
Hier setzt die Erfindung an.This is where the invention starts.
Der Erfindung liegt die Aufgabe zugrunde ein Hochfrequenzenergiekabel vorzuschlagen, mit dem Ströme von 300 A bis 1500 A möglichst streufeldarm und verlustarm übertragen werden können.The invention has for its object to propose a high-frequency energy cable, with the currents of 300 A to 1500 A possible Streufeldarm and low loss can be transmitted.
Diese Aufgabe wird dadurch gelöst, dass das Hochfrequenzenergiekabel wenigstens ein Litzenpaar aufweist, von dem eine Litze als Hinleiter und eine Litze als Rückleiter verwendbar ist und dass der Hinleiter und der Rückleiter des Litzenpaares parallel zueinander verlaufend gebündelt sind.This object is achieved in that the high-frequency power cable has at least one pair of leads from which a stranded conductor and a stranded wire can be used as the return conductor and that the forward conductor and the return conductor of the stranded pair are bundled parallel to one another.
Die Litzen eines Litzenpaares sind parallel gelegt. Damit sich keine großen Streufelder bilden und die Verluste klein bleiben, sind Hin- und Rückleiter so nah wie möglich zusammen geführt.The strands of a strand pair are laid parallel. In order to prevent the formation of large stray fields and keeping the losses low, the return and return conductors are brought together as closely as possible.
In einem Kabel können mehrere, vorzugsweise maximal vier Litzenpaare gebündelt werden. Das Bündel ist vorzugsweise so aufgebaut, dass es einen möglichst kreisförmigen Querschnitt hat.In a cable, a plurality, preferably a maximum of four pairs of strands can be bundled. The bundle is preferably constructed so that it has a circular cross section as possible.
Bei mehr als vier Litzenpaaren kann möglicherweise die in den Litzen umgesetzte Wirkleistung entstehende Wärme nicht mehr optimal abgeführt werden und/oder der Proximity-Effekt tritt wieder stärker auf.If there are more than four pairs of wires, the heat generated in the strands may no longer be dissipated optimally and / or the proximity effect will become stronger again.
Die Hinleiter und Rückleiter, insbesondere die Einzeldrähte sind vorzugsweise an den Enden des erfindungsgemäßen Hochfrequenzenergiekabels elektrisch leitend miteinander verbunden. Vorzugsweise werden Kabelschuhe verwendet, die gelötet und/oder verpresst sind. Von besonderem Vorteil ist, wenn alle Einzeldrähte in diese Verbindung einbezogen sind, da sich sonst der für die Leitung des Stroms zur Verfügung stehende Querschnitt reduziert.The forward conductors and return conductors, in particular the individual wires, are preferably connected to one another in an electrically conductive manner at the ends of the high-frequency energy cable according to the invention. Preferably, cable lugs are used which are soldered and / or pressed. It is particularly advantageous if all individual wires are included in this connection, since otherwise reduces the available for the conduction of the current cross-section.
Als mechanischer Schutz wird ein Gewebeschlauch verwendet. Der Gewebeschlauch verhindert Schäden an der Isolierung. Der Schlauch ist vorzugsweise grobmaschig, um eine Belüftung zur Kühlung der Litzen zu ermöglichen.As a mechanical protection, a fabric hose is used. The fabric hose prevents damage to the insulation. The tube is preferably coarse mesh to allow ventilation to cool the strands.
Die Litzen können 2000 bis 4000 Einzeldrähte aufweisen. Die Einzeldrähte der Litzen können einen Querschnitt von 0,0157 mm2 haben.
Die Einzeldrähte der Litzen können verdrillt und/oder gezopft sein.The strands can have 2000 to 4000 individual wires. The individual wires of the strands can have a cross section of 0.0157 mm 2 .
The individual wires of the strands can be twisted and / or knotted.
Das Kabel ist vorzugsweise für einen Strom von 1 A bis 1500 A ausgelegt. Bei dem Bemessungsstrom ergibt sich eine mittlere Stromdichte von bis zu 8 A/mm2. Ein durch das Kabel geleiteter Strom kann eine Frequenz von 1 Hz bis 150 kHz haben.The cable is preferably designed for a current of 1 A to 1500 A. The rated current results in a mean current density of up to 8 A / mm 2 . A current conducted through the cable may have a frequency of 1 Hz to 150 kHz.
Ein Ausführungsbeispiel für ein erfindungsgemäßes Hochfrequenzenergiekabel ist anhand der Zeichnung beschrieben. Es zeigt die einzige
- Figur
- einen Querschnitt durch das erfindungsgemäße Hochfrequenzenergiekabel.
- figure
- a cross section through the high-frequency energy cable according to the invention.
Das erfindungsgemäße Hochfrequenzkabel 1 weist acht Hochfrequenzlitzen 2, 3, 2', 3', 2", 3", 2"', 3"' auf die zu Litzenpaaren 2, 3; 2', 3'; 2", 3"; 2"', 3"' zusammengefasst sind. Die Hochfrequenzlitze besteht aus vielen Einzeldrähten 22 (z.B. 4000), die mit Lack isoliert sind und so geflochten sind, dass jeder Draht 22 jede Stelle in der Litze 2, 3, 2', 3', 2", 3", 2"', 3''' gleich oft durchläuft. Durch die Verwendung der Litzen wird die stromführende Fläche vergrößert, um den negativen Folgen des Skin-Effekts und Proximity-Effekts entgegen zu wirken. Die Litze 2, 3, 2', 3', 2", 3", 2"', 3"' weist je nach geforderter Isolationsspannung einen Mantel 21 aus einem geeigneten Isoliermaterial auf.The high-frequency cable 1 according to the invention has eight high-
Die Litzenpaare 2, 3; 2', 3'; 2", 3"; 2"', 3"' umfassen jeweils eine Litze, die als Hinleiter 2, 2', 2", 2"' vorgesehen ist und eine Litze, die als Rückleiter 3, 3', 3", 3"' vorgesehen ist. Der Hinleiter und der Rückleiter eines Litzenpaares sind parallel zueinander und so nahe wie möglich zueinander geführt, damit sich keine großen Streufelder bilden und die daraus resultierenden Verluste klein bleiben.The stranded
Die Litzen 2, 3, 2', 3', 2", 3", 2"', 3"' sind in einen grobmaschigen Gewebeschlauch eingezogen, der einerseits einen mechanischen Schutz der Litzen 2, 3, 2', 3', 2", 3", 2"', 3"', insbesondere der Mäntel 21 der Litzen 2, 3, 2', 3', 2", 3", 2"', 3"' bietet und andererseits durch die Maschen einen hinreichenden Luftzug zur Kühlung der stromführenden Teile ermöglicht. In dem Gewebeschlauch 4 des Kabels 1 sind die vier Litzenpaare 2, 3; 2', 3'; 2", 3"; 2''', 3"' möglichst rund gebündelt.The
Claims (7)
dadurch gekennzeichnet,
dass das Hochfrequenzenergiekabel (1) wenigstens ein Litzenpaar (2, 3, 2', 3', 2", 3", 2''', 3"') aufweist, von dem eine Litze (2, 3, 2', 3', 2", 3", 2''', 3"') als Hinleiter und eine Litze als Rückleiter verwendbar ist und
dass der Hinleiter und der Rückleiter des Litzenpaares (2, 3, 2', 3', 2", 3", 2"', 3"') parallel zueinander verlaufend gebündelt sind.High-frequency power cable (1) with a stranded wire (2, 3, 2 ', 3', 2 ", 3", 2 "', 3"') of electrically conductive individual wires (22) and a jacket (21 ) as a conductor, each individual wire (22) carrying an insulating lacquer layer,
characterized,
in that the high-frequency energy cable (1) has at least one stranded pair (2, 3, 2 ', 3', 2 ", 3", 2 '", 3"'), of which one stranded strand (2, 3, 2 ', 3') ', 2 ", 3", 2''', 3 "') can be used as a lead and a strand as a return conductor, and
that the forward conductor and the return conductor of the stranded pair (2, 3, 2 ', 3', 2 ", 3", 2 "', 3"') are bundled parallel to one another.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11166236A EP2525370A1 (en) | 2011-05-16 | 2011-05-16 | High frequency energy cable |
US13/241,881 US20120292075A1 (en) | 2011-05-16 | 2011-09-23 | High-power high-frequency cable |
CA2774345A CA2774345A1 (en) | 2011-05-16 | 2012-04-12 | High-power high-frequency cable |
CN2012101506346A CN102789839A (en) | 2011-05-16 | 2012-05-15 | High-power high-frequency cable |
RU2012120094/07A RU2012120094A (en) | 2011-05-16 | 2012-05-15 | HIGH FREQUENCY POWER CABLE |
JP2012112896A JP2012243770A (en) | 2011-05-16 | 2012-05-16 | High-frequency cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11166236A EP2525370A1 (en) | 2011-05-16 | 2011-05-16 | High frequency energy cable |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2525370A1 true EP2525370A1 (en) | 2012-11-21 |
Family
ID=44582063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11166236A Withdrawn EP2525370A1 (en) | 2011-05-16 | 2011-05-16 | High frequency energy cable |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120292075A1 (en) |
EP (1) | EP2525370A1 (en) |
JP (1) | JP2012243770A (en) |
CN (1) | CN102789839A (en) |
CA (1) | CA2774345A1 (en) |
RU (1) | RU2012120094A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH709972B1 (en) * | 2014-08-11 | 2018-12-14 | Studer Christoph | Electrical cable. |
US11640861B2 (en) * | 2021-05-10 | 2023-05-02 | Te Connectivity Solutions Gmbh | Power cable which reduces skin effect and proximity effect |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH097435A (en) * | 1995-06-21 | 1997-01-10 | Totoku Electric Co Ltd | High frequency electric power transmission cable |
EP0821371A2 (en) * | 1996-07-26 | 1998-01-28 | Delco Electronics Corporation | High frequency power cable |
CN201146081Y (en) * | 2007-06-13 | 2008-11-05 | 张昕昕 | High-frequency twisted pair wire cable |
EP2333788A2 (en) * | 2009-12-11 | 2011-06-15 | Showa Aircraft Industry Co., Ltd. | High frequency electric wire |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57190990U (en) * | 1981-05-29 | 1982-12-03 | ||
JPS5823106A (en) * | 1981-07-31 | 1983-02-10 | 株式会社日立製作所 | Wire for coil and coil using same |
US5414211A (en) * | 1992-12-21 | 1995-05-09 | E-Systems, Inc. | Device and method for shielding an electrically conductive cable from electromagnetic interference |
JPH0714438A (en) * | 1993-06-23 | 1995-01-17 | Sumitomo Electric Ind Ltd | Four-core balanced transmission cable |
US6169251B1 (en) * | 1997-03-31 | 2001-01-02 | The Whitaker Corporation | Quad cable |
DE20016527U1 (en) * | 2000-09-23 | 2000-11-30 | Alcatel, Paris | Electrical installation line |
JP4228172B2 (en) * | 2001-10-25 | 2009-02-25 | 住友電気工業株式会社 | Signal transmission cable, terminal device, and data transmission method using the same |
US7060905B1 (en) * | 2001-11-21 | 2006-06-13 | Raytheon Company | Electrical cable having an organized signal placement and its preparation |
JP2004235112A (en) * | 2003-01-31 | 2004-08-19 | Susumu Kiyokawa | Electric power conductor reducing electromagnetic wave |
US6998538B1 (en) * | 2004-07-30 | 2006-02-14 | Ulectra Corporation | Integrated power and data insulated electrical cable having a metallic outer jacket |
EP1934990B1 (en) * | 2005-09-19 | 2012-11-07 | Telefonix, Inc. | Flexible and lightweight seat-to-seat cabin cable system and method of manufacturing same |
ATE508464T1 (en) * | 2006-05-18 | 2011-05-15 | Abb Technology Ltd | ELECTRICAL SUPPLY NETWORK AND METHOD OF PRODUCTION |
JP5180521B2 (en) * | 2007-06-15 | 2013-04-10 | 日立電線ファインテック株式会社 | Signal transmission cable and multi-core cable |
CN201111980Y (en) * | 2007-09-24 | 2008-09-10 | 成都市鑫牛线缆有限公司 | Low temperature flexibility cable special for wind power generation |
CN101441906B (en) * | 2008-12-25 | 2010-11-17 | 哈尔滨理工大学 | High voltage, ultra-high voltage crosslinked polyetylene insulated power cable with non-linear shielding layer |
-
2011
- 2011-05-16 EP EP11166236A patent/EP2525370A1/en not_active Withdrawn
- 2011-09-23 US US13/241,881 patent/US20120292075A1/en not_active Abandoned
-
2012
- 2012-04-12 CA CA2774345A patent/CA2774345A1/en not_active Abandoned
- 2012-05-15 RU RU2012120094/07A patent/RU2012120094A/en not_active Application Discontinuation
- 2012-05-15 CN CN2012101506346A patent/CN102789839A/en active Pending
- 2012-05-16 JP JP2012112896A patent/JP2012243770A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH097435A (en) * | 1995-06-21 | 1997-01-10 | Totoku Electric Co Ltd | High frequency electric power transmission cable |
EP0821371A2 (en) * | 1996-07-26 | 1998-01-28 | Delco Electronics Corporation | High frequency power cable |
CN201146081Y (en) * | 2007-06-13 | 2008-11-05 | 张昕昕 | High-frequency twisted pair wire cable |
EP2333788A2 (en) * | 2009-12-11 | 2011-06-15 | Showa Aircraft Industry Co., Ltd. | High frequency electric wire |
Also Published As
Publication number | Publication date |
---|---|
US20120292075A1 (en) | 2012-11-22 |
JP2012243770A (en) | 2012-12-10 |
CN102789839A (en) | 2012-11-21 |
CA2774345A1 (en) | 2012-11-16 |
RU2012120094A (en) | 2013-11-20 |
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