EP1060485B1 - Mehrfachparallelleiter für elektrische maschinen und geräte - Google Patents
Mehrfachparallelleiter für elektrische maschinen und geräte Download PDFInfo
- Publication number
- EP1060485B1 EP1060485B1 EP99900823A EP99900823A EP1060485B1 EP 1060485 B1 EP1060485 B1 EP 1060485B1 EP 99900823 A EP99900823 A EP 99900823A EP 99900823 A EP99900823 A EP 99900823A EP 1060485 B1 EP1060485 B1 EP 1060485B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- multiple parallel
- conductor
- insulating material
- bundle
- protective insulating
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
Definitions
- the present invention relates to a multiple parallel conductor for an electrical Machine, in particular for a transformer, consisting of a plurality of neighboring, preferably insulated, partial conductors, which form a bundle are summarized, and a method for producing such Multiple parallel conductors. Furthermore, the present invention relates to a winding for a electrical machine, in particular a transformer with a top and a Undervoltage winding, consisting of at least one multiple parallel conductor Above type, with successive turns of the multiple parallel conductor or parallel parallel multiple parallel and axially and / or radially adjacent are arranged.
- Multiple parallel conductors are included to improve the cooling of electrical conductors a grid-shaped wrap known.
- a multiple parallel conductor consisting of a plurality of partial conductors or twisted conductors described, which with a large-mesh woven ribbon or mesh ribbon made of polyester or a glass silk / polyester mixture is banded, which has a mesh size of at least 2 mm.
- the multiple parallel conductor and / or the woven or lattice band is still impregnated with a partially cross-linked epoxy resin. With such a woven ribbon one can stable compact conductor are produced, in which the partial conductor directly with the Coolant in contact.
- an electrical conductor is known from US Pat. No. 3,098,113, which completely coexists with an oil-impregnable main insulation and a liquid-impermeable Partial insulation is surrounded to allow oil impregnation, but a To prevent water from entering at least partially.
- the liquid impermeable Partial insulation is in turn provided with an oil-impregnable covering.
- This task is based on the multiple parallel ladder mentioned above solved according to the invention in that over the outer surfaces of the partial conductor bundle Flat protective insulation is provided, which has at least one surface section of the partial conductor bundle and at least one further surface section of the Partial conductor bundle is not covered, the surface sections, based on the Longitudinal direction of the multiple parallel conductor, are arranged side by side, and that a lattice-shaped covering, e.g. a grid tape, a thread winding or the like. is provided.
- a lattice-shaped covering e.g. a grid tape, a thread winding or the like.
- the side surfaces with a flat protective insulation stand together in direct contact.
- the protective insulation comprises one or more side surfaces and that of this side surface or edge regions of the neighboring ones facing these side surfaces, not with side surfaces provided with protective insulation and possibly the edge areas between adjacent side surfaces provided with protective insulation. So that's a increased protection of the conductor in the area of the edges possible, so that the electrical Dielectric strength can be further increased.
- the Protective insulation preferably at least two adjacent side surfaces of the Multiple parallel conductor to provide all-round protection of the multiple parallel conductor enable.
- the flat protective insulation is preferably a paper insulation, which due to its good insulation properties and low space consumption for the purposes of present invention is extremely suitable.
- FIG. 1 in which a multiple parallel conductor 1 for an electrical machine using the example of a cable for Undervoltage winding of a transformer is shown.
- the multiple parallel ladder has a number of partial conductors 2, z. B. flat copper conductor with a rectangular Cross section on.
- Each partial conductor 2 is provided with insulation 3, in the present case with a varnish coating Mistake.
- the individual partial conductors 2 in the desired number and orientation combined into a sub-conductor bundle.
- the top of the partial conductor bundle Protective insulation 4 there is a on the top of the partial conductor bundle Protective insulation 4 arranged, which covers the entire top and this top facing edge areas of the side surfaces covered.
- the side surfaces and the The underside of the partial conductor bundle remain without protective insulation.
- material for the Protective insulation is oil-impregnable insulating material, preferably paper, in the required quality and thickness selected.
- the arrangement of the partial conductor bundle with the protective insulation is to achieve the required stability wrapped with a large-mesh grid tape 5. Further Information regarding the grid belt 5 can be given at the beginning international application WO95 / 30991 are taken from the applicant, which is expressly to be regarded as part of the present disclosure.
- Figures 2 and 3 are further embodiments for the invention Multiple parallel conductor using a wire conductor for the undervoltage or Medium voltage winding of a transformer shown.
- a wire conductor for the undervoltage or Medium voltage winding of a transformer shown.
- the protective insulation 4 is on one Side surface and a portion of this top surface facing this side surface arranged, this protective insulation preferably also over the adjacent Extends edge areas. The remaining section of the top, bottom, and opposite side surface are without protective insulation.
- Figure 3 extends the protective insulation 4 over one side surface and the entire Top of the multiple parallel conductor 1, again preferably the adjacent ones Edge areas are included. The opposite side and the bottom remain without protective insulation.
- the arrangement of the protective insulation according to the exemplary embodiments described above is not restrictive.
- Protective insulation can be used in the context of the present invention can be arranged at any point and over any surface section extend. In the context of the present invention it is only provided that the Protective insulation over at least one surface section (side surface, top side, Underside) extends and leaves at least one surface section free.
- two or more protective insulations can also be used be provided, for example diametrically opposite or to each other can be arranged adjacent.
- Windings are the side surfaces of two or more that are in contact with each other Multiple parallel conductor 1 each with protective insulation 4 to the electrical To increase the dielectric strength of the winding further.
- the multiple parallel conductors can be used instead the axial direction, even in a radial direction offset by 90 ° be arranged side by side.
- the protective insulation is on the vertical boundary surfaces between the individual turns of the radial winding arranged.
- Winding is only a part of the side surfaces of two or two that are in contact with each other several multiple parallel conductors with a flat protective insulation 4.
- a winding 6 is shown for a transformer, which by a so-called drill conductor trained multiple parallel conductor 7 is made of a large number of partial conductors 2.
- the multiple parallel conductors 7 designed according to the invention are arranged such that at least on one of the horizontal boundary surfaces over which the individual Turns are in direct contact with each other, at least one Multiple parallel conductor 7 is provided with protective insulation 4.
- Such multiple parallel conductors 7, which are connected to neighboring ones Windings are not in direct contact, likewise with protective insulation 4 according to of the present invention be equipped to the mechanical stability and the to increase the dielectric strength of the multiple parallel conductor.
- Such a Multiple parallel conductor is shown in Figure 5 above.
- multiple parallel conductors can also be used both in radial as well as in the axial direction are involved, for. B. in groups of four (Fig. 4a, 4b).
- an L-shaped protective insulation is preferably provided (see also Fig. 3), which extends both horizontally and vertically Side surface of each multiple parallel conductor extends.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Installation Of Bus-Bars (AREA)
- Programmable Controllers (AREA)
- Insulated Conductors (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
Claims (11)
- Mehrfachparallelleiter (1) für eine elektrische Maschine, insbesondere für einen Transformator, bestehend aus einer Mehrzahl von benachbarten, vorzugsweise voneinander isolierten Teilleitern (2), die zu einem Bündel zusammengefaßt sind, dadurch gekennzeichnet, daß über den Außenflächen des Teilleiterbündels eine flächige Schutzisolation (4) vorgesehen ist, welche zumindest einen Oberflächenabschnitt des Teilleiterbündels überdeckt und zumindest einen weiteren Oberflächenabschnitt des Teilleiterbündels nicht überdeckt, wobei die Oberflächenabschnitte, bezogen auf die Längsrichtung des Mehrfachparallelleiters, nebeneinander angeordnet sind, und daß darüber zumindest abschnittsweise eine gitterförmige Umhüllung (5), z.B. ein Gitternetzband, eine Faden-Umspinnung od.dgl., vorgesehen ist.
- Mehrfachparallelleiter nach einem der Ansprüche 1, dadurch gekennzeichnet, daß die Schutzisolation (4) eine oder mehrere Seitenflächen des Teilleiterbündels und die dieser Seitenfläche bzw. diesen Seitenflächen zugewandten Kantenbereiche der benachbarten, nicht mit einer Schutzisolation versehenen Seitenflächen und gegebenenfalls die Kantenbereichen zwischen benachbarten, mit einer Schutzisolation versehenen Seitenflächen umfaßt.
- Mehrfachparallelleiter nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Schutzisolation (4) zwei benachbarte Seitenflächen des Teilleiterbündels überdeckt.
- Mehrfachparallelleiter nach Anspruch 1, dadurch gekennzeichnet, daß die flächige Schutzisolation (4) ein ölimprägnierbarer Isolierstoff, vorzugsweise eine Papierisolation ist.
- Mehrfachparallelleiter nach Anspruch 1, dadurch gekennzeichnet, daß die Teilleiter lackisoliert sind.
- Verfahren zur Herstellung eines Mehrfachparallelleiters (1) für eine elektrische Maschine, insbesondere ein Transformator, wobei einzelne, vorzugsweise voneinander isolierte Teilleiter (2) zu einem Teilleiterbündel zusammengefaßt werden, dadurch gekennzeichnet, daß auf das Teilleiterbündel eine zumindest eine Seitenfläche, jedoch nicht den gesamten Umfang des Teilleiterbündels überdeckende flächige Schutzisolation (4) aufgebracht wird und daß das Teilleiterbündel samt Schutzisolation mit einer gitterförmigen Umhüllung (5) versehen wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß zur Herstellung der Schutzisolation (4) ein ölimprägnierbarer Isolierstoff, vorzugsweise Papier verwendet wird.
- Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Schutzisolation mit dem Teilleiterbündel verklebt wird.
- Wicklung für eine elektrische Maschine, insbesondere ein Transformator, bestehend aus zumindest einem Mehrfachparallelleiter (1, 7) nach einem der Ansprüche 1 bis 5, wobei aufeinanderfolgende Windungen des Mehrfachparallelleiters (1, 7) oder parallelgewickelter Mehrfachparallelleiter axial und/oder radial benachbart angeordnet sind, dadurch gekennzeichnet, daß von den einander zugewandten Seitenflächen benachbarter Windungsabschnitte des bzw. der Mehrfachparallelleiter (1, 7) zumindest eine Seitenfläche mit einer flächigen Schutzisolation (4) versehen ist.
- Wicklung nach Anspruch 8, dadurch gekennzeichnet, daß die mit einer flächigen Schutzisolation (4) versehenen Seitenflächen miteinander unmittelbar in Kontakt stehen.
- Transformator mit einer Oberspannungswicklung und einer Unterspannungswicklung, welche zumindest abschnittsweise durch einen Mehrfachparallelleiter nach einem der Ansprüche 1 bis 6 gebildet ist, dadurch gekennzeichnet, daß zumindest die der Grenzfläche zwischen der Oberspannungswicklung und der Unterspannungswicklung zugewandte Oberseite des Mehrfachparallelleiters (1, 7) der Unterspannungswicklung eine flächige Schutzisolation aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT32898 | 1998-02-24 | ||
AT0032898A AT406923B (de) | 1998-02-24 | 1998-02-24 | Mehrfachparallelleiter für elektrische maschinen und geräte |
PCT/AT1999/000014 WO1999044209A1 (de) | 1998-02-24 | 1999-01-21 | Mehrfachparallelleiter für elektrische maschinen und geräte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1060485A1 EP1060485A1 (de) | 2000-12-20 |
EP1060485B1 true EP1060485B1 (de) | 2001-10-24 |
Family
ID=3487669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99900823A Expired - Lifetime EP1060485B1 (de) | 1998-02-24 | 1999-01-21 | Mehrfachparallelleiter für elektrische maschinen und geräte |
Country Status (6)
Country | Link |
---|---|
US (1) | US6563413B1 (de) |
EP (1) | EP1060485B1 (de) |
AT (2) | AT406923B (de) |
CA (1) | CA2320773C (de) |
DE (1) | DE59900349D1 (de) |
WO (1) | WO1999044209A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6724118B2 (en) * | 2001-06-13 | 2004-04-20 | Siemens Westinghouse Power Corporation | Electrical isolation layer system strand assembly and method of forming for electrical generator |
DE102004013416A1 (de) * | 2004-03-18 | 2005-10-06 | Nexans | Hauptleiter für eine kapazitiv gesteuerte Hochspannungswicklung |
JP4996086B2 (ja) * | 2005-09-29 | 2012-08-08 | 株式会社東芝 | マイカテープおよびこのマイカテープを用いた回転電機コイル |
US7982133B2 (en) * | 2008-08-29 | 2011-07-19 | Pratt & Whitney Canada Corp. | Crack controlled resin insulated electrical coil |
US8742814B2 (en) | 2009-07-15 | 2014-06-03 | Yehuda Binder | Sequentially operated modules |
US8602833B2 (en) | 2009-08-06 | 2013-12-10 | May Patents Ltd. | Puzzle with conductive path |
NL2005439C2 (en) * | 2010-10-01 | 2012-04-03 | Draad Nijmegen B V | A multiple parallel conductor for an electrical machine. |
US9597607B2 (en) | 2011-08-26 | 2017-03-21 | Littlebits Electronics Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
US9019718B2 (en) | 2011-08-26 | 2015-04-28 | Littlebits Electronics Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
US11330714B2 (en) | 2011-08-26 | 2022-05-10 | Sphero, Inc. | Modular electronic building systems with magnetic interconnections and methods of using the same |
CN102708949B (zh) * | 2012-05-29 | 2013-09-25 | 江苏句容联合铜材有限公司 | 辐、轴向并列三复合导线及其加工方法 |
DE102015010636A1 (de) * | 2015-08-12 | 2017-02-16 | Karlsruher Institut für Technologie | Supraleitfähiger Leiter und Verwendung des supraleitfähigen Leiters |
US11616844B2 (en) | 2019-03-14 | 2023-03-28 | Sphero, Inc. | Modular electronic and digital building systems and methods of using the same |
EP4086927B1 (de) * | 2021-05-05 | 2024-03-27 | Hitachi Energy Ltd | Spule für einen transformatorkern |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE541636C (de) | 1932-01-14 | Siemens Schuckertwerke Akt Ges | Verfahren zum Einlegen von Z-foermigen Isolationsstreifen zwischen nebeneinanderliegenden elektrischen Leitern von Spulen, insbesondere Drosselspulen | |
US3098113A (en) * | 1959-12-04 | 1963-07-16 | English Electric Co Ltd | Oil-immersed electrical apparatus having oil-impregnated main insulation partly covered by liquid-impervious material |
US3202558A (en) * | 1960-12-23 | 1965-08-24 | Gen Electric | Process for insulating an electric coil |
GB1103764A (en) | 1963-12-17 | 1968-02-21 | Pirelli General Cable Works | Improvements in or relating to composite conductors for heavy current windings |
US3723797A (en) * | 1970-06-05 | 1973-03-27 | Asea Ab | Insulated coil for arrangement in a slot in the stator or rotor of an electrical machine |
DE3031866A1 (de) * | 1980-08-23 | 1982-04-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | Leiterstab fuer elektrische maschine |
DE3425982A1 (de) * | 1984-07-11 | 1986-01-23 | Siemens AG, 1000 Berlin und 8000 München | Gitterstab einer elektrischen maschine |
JPS63172413A (ja) | 1987-01-12 | 1988-07-16 | Mitsubishi Electric Corp | コイル導体 |
JPH04296316A (ja) * | 1990-12-18 | 1992-10-20 | General Electric Co <Ge> | 耐熱性樹脂組成物、製品及び方法 |
DE4244298C2 (de) * | 1992-12-28 | 2003-02-27 | Alstom | Isolierband und Verfahren zu seiner Herstellung |
DE59500312D1 (de) * | 1994-05-10 | 1997-07-17 | Asta Elektrodraht Ges M B H | Mehrfachparallelleiter für wicklungen elektrischer maschinen und geräte |
DE19609260C2 (de) | 1996-02-28 | 2000-05-18 | Aeg Schorch Transformatoren Gm | Isolationsanordnung für rechteckige Wickeldrähte zur Herstellung von Wicklungen aus Scheibenspulen für Transformatoren und Drosseln |
EP0872858A3 (de) * | 1997-04-17 | 1999-02-24 | Alcatel | Mehrfachparallelleiter für Wicklungen elektrischer Geräte und Maschinen |
US6051793A (en) * | 1998-05-22 | 2000-04-18 | Alcatel | Multiple parallel conductor featuring conductors partially wrapped with an aramid or other suitable wrapping material |
-
1998
- 1998-02-24 AT AT0032898A patent/AT406923B/de not_active IP Right Cessation
-
1999
- 1999-01-21 CA CA002320773A patent/CA2320773C/en not_active Expired - Lifetime
- 1999-01-21 AT AT99900823T patent/ATE207652T1/de active
- 1999-01-21 DE DE59900349T patent/DE59900349D1/de not_active Expired - Lifetime
- 1999-01-21 EP EP99900823A patent/EP1060485B1/de not_active Expired - Lifetime
- 1999-01-21 US US09/600,877 patent/US6563413B1/en not_active Expired - Lifetime
- 1999-01-21 WO PCT/AT1999/000014 patent/WO1999044209A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1060485A1 (de) | 2000-12-20 |
CA2320773A1 (en) | 1999-09-02 |
US6563413B1 (en) | 2003-05-13 |
AT406923B (de) | 2000-10-25 |
DE59900349D1 (de) | 2001-11-29 |
WO1999044209A1 (de) | 1999-09-02 |
ATE207652T1 (de) | 2001-11-15 |
CA2320773C (en) | 2004-08-03 |
ATA32898A (de) | 2000-02-15 |
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