EP0030338B1 - Conducteur électrique isolé pour enroulements de transformateurs et de bobines de self - Google Patents

Conducteur électrique isolé pour enroulements de transformateurs et de bobines de self Download PDF

Info

Publication number
EP0030338B1
EP0030338B1 EP80107450A EP80107450A EP0030338B1 EP 0030338 B1 EP0030338 B1 EP 0030338B1 EP 80107450 A EP80107450 A EP 80107450A EP 80107450 A EP80107450 A EP 80107450A EP 0030338 B1 EP0030338 B1 EP 0030338B1
Authority
EP
European Patent Office
Prior art keywords
conductor
winding
glue joint
conductors
material adapted
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
Application number
EP80107450A
Other languages
German (de)
English (en)
Other versions
EP0030338A1 (fr
Inventor
Bo Göran Dipl.-Ing. Persson
Erich Dr.Rer.Nat. Spicar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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
Priority claimed from SE7910171A external-priority patent/SE445690B/sv
Priority claimed from SE8007350A external-priority patent/SE452218B/sv
Application filed by ASEA AB filed Critical ASEA AB
Priority to AT80107450T priority Critical patent/ATE12556T1/de
Publication of EP0030338A1 publication Critical patent/EP0030338A1/fr
Application granted granted Critical
Publication of EP0030338B1 publication Critical patent/EP0030338B1/fr
Expired legal-status Critical Current

Links

Images

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
    • H01F27/2823—Wires
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/13—High voltage cable, e.g. above 10kv, corona prevention
    • Y10S174/14—High voltage cable, e.g. above 10kv, corona prevention having a particular cable application, e.g. winding
    • Y10S174/24—High voltage cable, e.g. above 10kv, corona prevention having a particular cable application, e.g. winding in an inductive device, e.g. reactor, electromagnet
    • Y10S174/25—Transformer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/13—High voltage cable, e.g. above 10kv, corona prevention
    • Y10S174/30—High voltage cable, e.g. above 10kv, corona prevention having insulation with a particular dimension or geometry
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to an insulated electrical conductor for windings of transformers and inductors according to the preamble of claim 1.
  • Such an electrical conductor is known from FR-A-1511784.
  • the spacer element In the electrical conductor known from FR-A-1511784, intended for a transformer, the spacer element consists of an insulating tape loosely inserted between the two partial conductors, which protrudes with its lateral edges beyond the broad sides of the partial conductors and also partially on the narrow sides of the partial conductors lies.
  • the reason for dividing the conductor into two partial conductors in the conductor according to FR-A-1511784 is to reduce the current displacement occurring in the transformer and the associated increased copper losses.
  • the use of a loose intermediate layer between the two partial conductors instead of two completely insulated partial conductors has the purpose in the known conductor to make do with a single winding process instead of three separate winding processes in the manufacture of the conductor.
  • Such conductors are made up of a plurality of lacquered partial conductors with a substantially rectangular cross section, which are arranged in parallel in at least two rows in a common surrounding insulation, usually paper wrapping.
  • a subconductor can be arranged in each row, one broad side of which lies opposite a broad side of an adjacent subconductor.
  • Each coated partial conductor can be provided with a coating made of a resin which is uncured or semi-hardened, so that the partial conductors can be moved against one another when they are processed into a winding. The uncured or semi-cured resin is cured only after the winding has taken its final shape, and usually in connection with the drying of the winding.
  • FR-A-1076646 describes a high-voltage winding for a rotating electrical machine with a grooved armature.
  • the winding consists of a bundle of a large number of rectangular partial conductors which adjoin one another with their broad sides in the slot of the machine and lie one above the other.
  • An intermediate layer is inserted between the partial conductors either during the winding process of the coil or after the coil has been completely wound. The intermediate layer only appears after the coil has been wound.
  • a conductor which has not yet been processed and which consists of two partial conductors is therefore never present during the entire manufacturing process of the known coil.
  • the entire stack of the partial conductors separated by intermediate layers is then sheathed together by the coil or slot insulation, which insulates the entire winding from the armature iron.
  • the intermediate layers between the partial conductors are glued to them.
  • the purpose of this bonding is to give the coil consisting of many turns or conductors sufficient dimensional stability for further processing.
  • a winding for a transformer a winding for a rotating machine is pressed into its final shape after winding has taken place, the complicated shape of the winding heads in particular having to be produced. Corresponding deformation does not take place in a transformer coil after its winding.
  • the invention has for its object to develop an insulated electrical conductor of the type mentioned, which is equal to a conductor of the same shape in terms of its mechanical strength against short-circuit forces despite the division into two partial conductors, which consists of a single solid conductor.
  • the invention is based on the knowledge that it is constructed from two partial conductors
  • Conductor is possible to use non-insulated partial conductors, provided that an insulating layer is present between the two partial conductors, which ensures that the partial conductors of the winding have no electrical contact with one another. Since the conductor consists of only two partial conductors, the partial conductors essentially retain their original mutual position during bending and similar changes in shape.
  • the possibility of using non-insulated partial conductors is extremely important in terms of costs, given the large conductor lengths used in transformer construction. This also gives you a high fill factor.
  • the insulating layer forms a glue joint between the partial conductors in the finished winding, so that after the partial conductors have been joined together, the conductor behaves mechanically essentially as a uniform solid conductor, which means a high resistance to kinking, while in electrical terms it is like a conductor consisting of two insulated sub-conductors behaves, which means low additional losses.
  • the two partial conductors are electrically connected in parallel. This is achieved in that they are electrically connected to one another at the ends of a coil made of the conductor for a transformer or a choke coil.
  • the insulation surrounding the conductor may be of a known type and may consist of a spiral and overlapped tape made of cellulose paper or polymer film, e.g. a film made of polyethylene glycol terephthalate, polycarbonate, polyimide, polyamideimide, polypropene, polymethylpentene or polysulfone.
  • the insulation can include also consist of a wrap with yarn from one of the materials mentioned.
  • suitable substances for the material that can be made to form the glue line include: curable resins such as epoxy resins, polyamides modified epoxy resins, uretane resins, isocyanate modified ester resins, uretane resin modified epoxy resins and certain types of rubber (e.g. Lein 4684 from Du Pont, USA) as well as thermoplastic resins (melt glues) such as polyethylene glycol terephthalate, polyamide and polycarbonate.
  • curable resins such as epoxy resins, polyamides modified epoxy resins, uretane resins, isocyanate modified ester resins, uretane resin modified epoxy resins and certain types of rubber (e.g. Lein 4684 from Du Pont, USA) as well as thermoplastic resins (melt glues) such as polyethylene glycol terephthalate, polyamide and polycarbonate.
  • the material forming the glue joint can preferably be applied as a separate film between the partial conductors. It is also possible to apply the material in such a way that
  • the spacer element made of insulating material in the material forming the glue joint has the task of keeping the two partial conductors at a distance and of preventing electrical contact between them. This is particularly important when gluing, if the material for the glue joint is liquid or soft. Although the partial conductors are connected in parallel at the ends of the winding, the magnetic fluxes encompassed by each partial conductor are somewhat different, so that a voltage occurs between the partial conductors during operation, which requires the insulation between them.
  • Suitable spacer elements are solid films or paper, felt or fabric made of fiber material, such as fibers made of cellulose, polyethylene glycol terephthalate, polyamide, polyvinyl acetate, polyacrylonitrile, polypropene and glass.
  • the fibers can mechanically by felting or melting or with an adhesive.
  • the spacer element can be provided with continuous pores or holes which are filled with a material forming the glue joint.
  • the paper, felts or fabrics used can preferably be loose or wide-meshed. It is also possible to use conventional powdery fillers, e.g. Powder made of chalk, mica, quartz or aluminum oxide or known fibrous fillers, e.g. Fibers made of cellulose, glass or the other fiber materials mentioned above for paper, felts and fabrics.
  • the glue-capable material has already been converted into a winding in the gluing state before the conductor is formed.
  • This has the advantage that the conductor can be produced using a strong and controlled pressure on the partial conductor, so that the glue joint between the partial conductors has the same properties at all points and the partial conductors are thoroughly anchored to one another.
  • the mechanical and electrical properties can be checked before it is processed into a winding. Since the partial conductors are anchored to one another in their final bearing, i.e. they do not change their mutual position during forming into a winding and the subsequent treatment (no mutual displacement), the conductor can be processed into a winding with predeterminable properties without difficulty.
  • the gluable material is only converted into the glued state after the conductor has assumed its final shape when it is processed into a winding.
  • the glue joint is then preferably created when the winding dries, which is heated sufficiently so that the material provided for the glue joint forms the joint between the partial conductors. Because the broad sides of the partial conductors and the insulating layer arranged between them run essentially in the axial direction of the winding, the outer partial conductor is stretched more than the inner one. This creates a radial pressure on the insulating layer in the winding, which has a favorable effect on the formation of a mechanically firm joint.
  • the low-voltage winding is constructed as a cylinder winding and the high-voltage winding as a disk winding.
  • the conductor according to the invention can also be used for other types of windings.
  • the conductor shown in Figure 1 consists of two rectangular partial conductors 10 and 11, the broad sides of which are designated 10a and 11 and the narrow sides of which are 10b and 11b.
  • the two partial conductors each have a broad side 10a or 11a side by side. In the sense of the figure, each partial conductor has a width of 2 mm and a height of 12 mm.
  • An insulating layer 12, which contains a spacer element 13, lies between the adjacent broad sides of the two partial conductors.
  • the partial conductors and the insulating layer 12 together form the conductor 8.
  • the conductor is surrounded by a winding 17 made of spirally wound paper tape.
  • Layer 12 serves to form a glue joint in the arrangement according to FIG. 2.
  • two rectangular, non-insulated partial conductors 10 and 11 made of copper with cross-sectional dimensions of 2 ⁇ 12 mm with opposite broad sides of supply rolls 18 and 19 are guided through a braking device 20, which the partial conductors are subjected to by friction during further processing keeps stretched.
  • the partial conductors are then passed through a device 21 with a plurality of deflecting rollers, in which the partial conductors are cold worked in order to increase the hardness of the copper.
  • the partial conductors are passed through a device 22, which consists of felt-clad nozzles or an ultrasonic bath with degreasing liquid can exist.
  • a 0.15 mm thick and 12 mm wide spacer 13 in the form of a loose and very porous felt which consists of a mixture of polyvinyl acetate fibers and polyamide fibers, which are connected with an acrylate binder, which has a basis weight of 30 * g / M2 and which is also impregnated with a polyamide-modified epoxy resin, is guided between the partial conductors 10 and 11 by the supply roller 24 via a plurality of deflection rollers, not shown.
  • the partial conductors then pass together with the spacer element a high-frequency coil 25, through the field of which the partial conductors are heated.
  • the partial conductors and the spacer After the partial conductors and the spacer have passed a guide device 26, in which the partial conductors are aligned laterally with respect to one another by vertical guide rollers, they arrive in a rolling device 27 with a plurality of horizontal pairs of rollers 28, where the partial conductors are pressed against one another and thereby joined together so that the glue (which corresponds to layer 12 in FIG. 1) is heated in the spacer element 13 by the partial conductors and hardened into a glue joint.
  • the conductor begins to cool and is then cooled further in the cooling device 29 before the assembled conductor arrives at a spinning machine 30, where a wrapping 17 (FIG. 1) is spun around the conductor from paper.
  • the wound conductor is then wound on a roll 31.
  • the conductor is used in low voltage windings and with modified conductor dimensions in high voltage windings of transformers according to Fig. 3-5.
  • the essential parts of the transformer shown in FIGS. 3-5 include a high-voltage bushing 41, a low-voltage bushing 42, a transformer tank 43, press flanges 44, an insulated support 45 for the low-voltage connection 46, intermediate layers 47 made of wood, a low-voltage winding 48, a high-voltage winding 49 , an iron core 50, intermediate layers 51 made of pressboard, conductor 52 in the high-voltage winding and insulating cylinder 53 made of pressboard.
  • the conductor of the low voltage winding has the cross section shown in Figure 1, i.e. it consists of two sub-conductors 10 and 11 surrounded by the winding 17, which are joined together by a glue joint formed from the layer 12 and containing the spacer element 13.
  • the conductors 52 of the high-voltage winding which can be connected in parallel or in series, each consist of two rectangular partial conductors 54 and 55 (FIG. 5), the cross sections of which have the dimensions 1.5 ⁇ 10 mm and a glue joint is arranged between their broad sides made of an insulating layer 56 of the same type as layer 12, ie including a spacer 13 (not shown in Fig. 5) is constructed.
  • the conductor insulation 57 consists of several turns of paper tape, which is wound spirally and overlapped.
  • the high-voltage winding 49 is preferably an interleaved disk coil winding, the number of conductors of a disk being significantly greater than three, as is shown for the sake of clarity in the winding in FIGS. 4 and 5.
  • the insulating layer 12 in the conductor according to FIG. 1 is made of a hardenable resin and contains a 0.15 mm thick and 12 mm wide spacer element 13 in the form of the loose (coarse-mesh) and porous described at the beginning Felt with a basis weight of 30 g / m 2 .
  • the hardenable resin with which the spacer element is impregnated is an epoxy resin which is mixed with dicyandiamide as the hardener, 3 parts by weight of hardener being used per 100 parts by weight of epoxy resin.
  • the insulating layer, which is dry, is loosely arranged as a separate tape between the partial conductors and is therefore not glued to the partial conductors 10 and 11.
  • the conductor is surrounded by a winding 17 made of paper tape wound in a spiral.
  • the conductor is used in the low-voltage winding and with modified cross-sectional dimensions (for example 1.5 x 10 mm) in the high-voltage winding in transformers according to FIGS. 3 to 5.
  • the glue joint is formed first after the conductor has been processed into a winding.
  • the hardening of the hardenable resin in the insulating layers 12 and 56 takes place with the formation of a mechanically firm glue joint? between the partial conductors when the winding is dried at approx. 130 ° C for approx. 12 hours. Because the conductors in both the low-voltage winding and the high-voltage winding are arranged such that the flat sides of the partial conductors and the insulating layer run in the axial direction of the winding, the outer partial conductor of the conductor is stretched more than the inner partial conductor. As a result, the insulating layer is exposed to radial pressure.
  • the transformer tank 43 is filled with transformer oil after drying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Communication Cables (AREA)

Claims (10)

1. Conducteur électrique isolé (8; 52) pour enroulements de transformateurs et de bobines de self, qui est formé de conducteurs partiels (10, 11; 54, 55) de forme sensiblement rectangulaire, qui ne sont pas isolés et qui sont placés l'un à côté de l'autre par leur grand côté (10a, 11a), un élément d'entretoise (13) en un matériau isolant étant interposé entre lesdits deux grands côtés, caractérisé en ce que, entre lesdits grands côtés (10a, 11a) est prévu un joint de colle en un matériau isolant susceptible de coller et dans lequel se trouve l'élément d'entretoise (13).
2. Conducteur suivant la revendication 1, caractérisé en ce que le matériau susceptible de coller a été amené à l'état collant avant la transformation du conducteur en un enroulement.
3. Conducteur suivant la revendication 1 ou 2, caractérisé en ce que le matériau susceptible de coller est, avec incorporation de l'élément d'entretoise (13), une pellicule autonome par rapport au conducteur élémentaire.
4. Conducteur suivant la revendication 1 ou 2, caractérisé en ce que le matériau susceptible de coller forme une couche sur au moins l'un des deux grands côtés adjacents des conducteurs partiels.
5. Conducteur suivant l'une des revendications 1 à 4, caractérisé en ce que l'élément d'entretoise (13) est constitué d'un matériau en forme de bande à pores ou à trous traversants.
6. Conducteur suivant l'une des revendications 1 à 4, caractérisé en ce que l'élément d'entretoise (13) est constitué d'une charge pulvérulente ou fibreuse disposée dans le matériau susceptible de coller.
7. Conducteur suivant l'une des revendications précédentes, caractérisé en ce que le matériau susceptible de coller est une résine durcissable.
8. Conducteur suivant l'une des revendications précédentes, caractérisé en ce que le matériau susceptible de coller peut être amené à l'état collant par chauffage.
9. Bobine de transformateur ou de self enroulée à partir d'un conducteur suivant l'une des revendications 1 ou 3 à8, caractérisée en ce que le matériau susceptible de coller n'a été amené à l'état collant qu'après la formation de la bobine.
10. Bobine suivant la revendication 9, caractérisée en ce que l'enroulement (48, 49) a une forme sensiblement cylindrique et en ce que les côtés plats (10a, 11a) des conducteurs partiels (10, 11,54,55) et la couche isolante (12, 52) s'étendent sensiblement suivant la direction axiale de l'enroulement.
EP80107450A 1979-12-11 1980-11-28 Conducteur électrique isolé pour enroulements de transformateurs et de bobines de self Expired EP0030338B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80107450T ATE12556T1 (de) 1979-12-11 1980-11-28 Isolierter elektrischer leiter fuer wicklungen von transformatoren und drosselspulen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE7910171A SE445690B (sv) 1979-12-11 1979-12-11 Med omgivande isolering forsedd ledare for formning av lindningar till transformatorer och andra induktiva apparater
SE7910171 1979-12-11
SE8007350 1980-10-20
SE8007350A SE452218B (sv) 1980-10-20 1980-10-20 Med omgivande isolering forsedd ledare vilken er formad till en lindning for en transformator eller annan induktiv apparat

Publications (2)

Publication Number Publication Date
EP0030338A1 EP0030338A1 (fr) 1981-06-17
EP0030338B1 true EP0030338B1 (fr) 1985-04-03

Family

ID=26657410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107450A Expired EP0030338B1 (fr) 1979-12-11 1980-11-28 Conducteur électrique isolé pour enroulements de transformateurs et de bobines de self

Country Status (6)

Country Link
US (1) US4552990A (fr)
EP (1) EP0030338B1 (fr)
BR (1) BR8008058A (fr)
CA (1) CA1170732A (fr)
DE (1) DE3070426D1 (fr)
NO (1) NO803716L (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150405A (ja) * 1983-02-10 1984-08-28 Toshiba Corp 常電導コイルおよびその製造方法
GB8916332D0 (en) * 1989-07-17 1989-08-31 Gec Alsthom Ltd Transformer winding conductor
US5393933A (en) * 1993-03-15 1995-02-28 Goertz; Ole S. Characteristic impedance corrected audio signal cable
DE4438187A1 (de) * 1994-10-26 1996-05-02 Abb Management Ag Elektrischer Leiter für Wicklungen mit verteiltem Überspannungsschutz
DE59701100D1 (de) * 1996-09-30 2000-03-09 Asta Elektrodraht Ges M B H Oe Mehrfachparallelleiter für wicklungen elektrischer maschinen und geräte
SE9704423D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Roterande elektrisk maskin med spolstöd
SE9704422D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Ändplatta
US6080935A (en) * 1998-07-21 2000-06-27 Abb Power T&D Company Inc. Folded insulated foil conductor and method of making same
SE516548C2 (sv) 1999-05-27 2002-01-29 Abb Ab Roterande elektrisk maskin där lindningen utgörs av en högspänningskabel med reducerade virvelströmsförluster
WO2001075908A1 (fr) * 2000-04-03 2001-10-11 Abb Power T & D Company Inc. Transformateur de distribution a cables semi-conducteurs de type sec
FR2843975B1 (fr) * 2002-09-04 2008-11-14 Kermel Fibres et fibrides, leur procede d'obtention, articles obtenus a partir de ces fibres et/ou fibrides.
EP1420507B1 (fr) * 2002-11-16 2008-01-09 Minebea Co., Ltd. Moteur miniature avec rotor aux aimants permanents
MX2011002323A (es) * 2008-09-03 2011-04-05 Usg Interiors Inc Modulo electricamente conductor.
MX2011002175A (es) * 2008-09-03 2011-04-07 Usg Interiors Inc Cinta electricamente conductora para paredes y techos.
WO2010028006A2 (fr) * 2008-09-03 2010-03-11 Usg Interiors, Inc. Élément conducteur électrique, système d'élément conducteur électrique et son procédé de fabrication
EP2325849B1 (fr) * 2009-11-19 2014-01-08 Essex Europe Conducteur continuellement transposé
JP6048910B2 (ja) * 2011-11-14 2016-12-21 住友電気工業株式会社 リアクトル、コイル成形体、コンバータ、及び電力変換装置
CN105518807B (zh) * 2013-09-06 2018-05-01 古河电气工业株式会社 扁平电线及其制造方法以及电气设备
EP3043355A4 (fr) * 2013-09-06 2017-04-26 Furukawa Electric Co., Ltd. Câble plat ainsi que procédé de fabrication de celui-ci, et appareil électrique
JP6200480B2 (ja) * 2015-11-20 2017-09-20 古河電気工業株式会社 集合電線およびその製造方法並びに電気機器
JP6822252B2 (ja) * 2017-03-22 2021-01-27 三菱マテリアル株式会社 コイル及びその製造方法
RU210354U1 (ru) * 2021-10-29 2022-04-11 Акционерное общество "Москабельмет" (АО "МКМ") Провод обмоточный подразделенный с прямоугольными медными жилами

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB720076A (en) * 1951-12-13 1954-12-15 Oerlikon Maschf Method of insulating a high tension dynamo-electric machine winding
CH295499A (de) * 1951-12-13 1953-12-31 Oerlikon Maschf Verfahren zur Herstellung von Hochspannungs-Wicklungsisolationen für elektrische Maschinen.
FR1076646A (fr) * 1952-05-03 1954-10-28 Oerlikon Maschf Isolement pour faisceaux de conducteurs électriques
FR1226319A (fr) * 1958-06-05 1960-07-11 Westinghouse Electric Corp Isolation électrique à base de polyhaloéthylène
GB1103764A (en) * 1963-12-17 1968-02-21 Pirelli General Cable Works Improvements in or relating to composite conductors for heavy current windings
GB1156133A (en) * 1966-04-22 1969-06-25 Parsons C A & Co Ltd Improvements in and relating to Insulated Electrical Conductors
US3543205A (en) * 1968-08-05 1970-11-24 Westinghouse Electric Corp Electrical 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
BE793219A (fr) * 1971-12-22 1973-06-22 Westinghouse Electric Corp Rubans de frettage
DE2208029B2 (de) * 1972-02-17 1976-06-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Hochspannungsfeste isolierung fuer wicklungsleiter grosser elektrischer maschinen
US3757029A (en) * 1972-08-14 1973-09-04 Thomas & Betts Corp Shielded flat cable
JPS5232062B2 (fr) * 1972-12-25 1977-08-19
US3819443A (en) * 1973-01-15 1974-06-25 Sun Chemical Corp Method for making multifinned shielding tapes
JPS5913123B2 (ja) * 1973-03-05 1984-03-28 株式会社フジクラ 転位電線
DE2330786C3 (de) * 1973-06-16 1978-11-23 Transformatoren Union Ag, 7000 Stuttgart Wicklung aus Doppelscheibenspulen für den Wirkwiderstand von Filterkreisdrosseln
US3828120A (en) * 1973-10-23 1974-08-06 Anaconda Co Flexible flat power cable
DE2402149A1 (de) * 1974-01-17 1975-07-24 Transformatoren Union Ag Drilleiter zur herstellung von wicklungen fuer transformatoren, drosselspulen und dgl.
SE398570B (sv) * 1976-04-26 1977-12-27 Asea Ab Sett att applicera ett band av isolermaterial i lengsriktningen av en i huvudsak rektanguler elektrisk ledare och anordning for genomforande av settet
US4204087A (en) * 1976-11-22 1980-05-20 Westinghouse Electric Corp. Adhesive coated electrical conductors
US4109375A (en) * 1976-11-22 1978-08-29 Westinghouse Electric Corp. Method of making adhesive coated electrical conductors
US4259141A (en) * 1977-04-22 1981-03-31 Asea Aktiebolag Apparatus for application of a tape of insulating material in the longitudinal direction of a substantially rectangular electrical conductor
JPS53141401A (en) * 1977-05-16 1978-12-09 Hitachi Ltd Conductor for electric machinery

Also Published As

Publication number Publication date
BR8008058A (pt) 1981-06-23
DE3070426D1 (en) 1985-05-09
NO803716L (no) 1981-06-12
US4552990A (en) 1985-11-12
EP0030338A1 (fr) 1981-06-17
CA1170732A (fr) 1984-07-10

Similar Documents

Publication Publication Date Title
EP0030338B1 (fr) Conducteur électrique isolé pour enroulements de transformateurs et de bobines de self
DE974705C (de) Glimmerpapierisolation fuer elektrische Leiter
DE3346031A1 (de) Spulenisolationsverfahren fuer elektrische maschinen
DE2258336A1 (de) Spule zum einlegen in die nuten einer elektrischen maschine
EP2390885B1 (fr) Procédé de fabrication d'enroulements pour un transformateur sec
DE1084369B (de) Verfahren zur Herstellung einer eine Ober- und Unterspannungswicklung enthaltenden Wicklungsanordnung fuer Transformatoren
DE3244823A1 (de) Elektroblech zur herstellung von lamellierten eisenkernen fuer statische oder dynamische elektrische maschinen
EP0133220A2 (fr) Conducteur électrique
DE2931725C2 (de) Verfahren zur Herstellung von selbsttragenden Läuferspulen für Gleichstrommaschinen
DE2051883B2 (de) Wicklung fuer trockentransformatoren und verfahren zu ihrer herstellung
WO2010006670A1 (fr) Bobinage pour un transformateur
DE2100629B2 (de) Verfahren zur Herstellung einer einlagigen Wicklung und Vorrichtung zur Durchführung des Verfahrens
EP1371124B1 (fr) Procede de production d'une barre conductrice
DE2818193C2 (de) Verfahren zur Herstellung einer imprägnierbaren Glimmerisolierfolie
EP0092018B1 (fr) Réactance, en particulier réactance isolée de l'air sans noyau magnétique
DE1665075B1 (de) Verfahren zur Isolierung eines elektrischen Gegenstandes
DE1488664B2 (de) Verfahren zur Herstellung eines glok kenförmigen Rotors fur eine elektrische Radialluftspaltmaschine
DE102010060832A1 (de) Verbundwerkstoff als Isolator in Transformatoren und Motoren
EP0219068A2 (fr) Tube en matériau isolant fabriqué par enroulement de filaments
DE4445423B4 (de) Verfahren zum Herstellen von Wicklungen für einen Trockentransformator
DE3503019C2 (de) Elektroblech zur Herstellung von aus einer Vielzahl von Blechlagen bestehenden Eisenkernen für elektrische Geräte
DE3214171A1 (de) Starkstromtransformator oder drosselspule
DE2151753B2 (de) Spule zum Einlegen In Nuten eines Stators oder Rotors einer elektrischen Maschine
DE2402149A1 (de) Drilleiter zur herstellung von wicklungen fuer transformatoren, drosselspulen und dgl.
DE1438284C (de) Isolierter Feldpol

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT

Designated state(s): AT BE CH DE FR GB IT

17P Request for examination filed

Effective date: 19811119

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI

Designated state(s): AT BE CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 12556

Country of ref document: AT

Date of ref document: 19850415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3070426

Country of ref document: DE

Date of ref document: 19850509

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19891016

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19891027

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19891103

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19891128

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891129

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19891130

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19901128

Ref country code: AT

Effective date: 19901128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19901130

Ref country code: CH

Effective date: 19901130

Ref country code: BE

Effective date: 19901130

BERE Be: lapsed

Owner name: ASEA A.B.

Effective date: 19901130

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST