EP0860835A1 - Lackierter Draht mit hoher Teilentladungsfestigkeit - Google Patents

Lackierter Draht mit hoher Teilentladungsfestigkeit Download PDF

Info

Publication number
EP0860835A1
EP0860835A1 EP98400405A EP98400405A EP0860835A1 EP 0860835 A1 EP0860835 A1 EP 0860835A1 EP 98400405 A EP98400405 A EP 98400405A EP 98400405 A EP98400405 A EP 98400405A EP 0860835 A1 EP0860835 A1 EP 0860835A1
Authority
EP
European Patent Office
Prior art keywords
resin
particles
layer
layers
enameled wire
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.)
Ceased
Application number
EP98400405A
Other languages
English (en)
French (fr)
Inventor
Virginie Studer
Laurent Preux
Léonard Danel
Rolf Nagel
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.)
Nexans SA
Original Assignee
Alcatel SA
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel SA, Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel SA
Publication of EP0860835A1 publication Critical patent/EP0860835A1/de
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/308—Wires with resins
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2947—Synthetic resin or polymer in plural coatings, each of different type

Definitions

  • the present invention relates to an enameled wire of high resistance to partial discharge.
  • Insulation by enameling electric wires allows obtaining thin insulation on wires electric. It may become insufficient for some applications. This is for example the case when these wires are used for making windings of motors with alternating current. These motors are controlled by frequency converters that we work on currently at increasing frequencies which can lead to premature aging of the son enamelled windings. This aging is notably due to partial discharges in these coils.
  • Such enameled wire is flexible, but its flexibility is less than that of an enameled wire whose resin enamel layers is not charged with such particles. he also has a smooth surface, but less smooth than the surface of a wire with an outer non-enamelled layer loaded. It follows that the winding of such an enameled wire is more delicate and that often the performances obtained after winding are less than those expected.
  • the object of the present invention is to avoid these problems.
  • Its object is a high resistance enameled wire at partial discharges, comprising a conductor electric and at least two layers of enameling on said conductor, at least one of which is in one resin loaded with weakly conductive particles, characterized in that the outermost of said layers is said to be overcoat and made up of a thermo-adhesive resin and at least the directly underlying layer is consisting of said resin charged with said particles.
  • This single figure is a sectional view of a wire enameled according to the invention.
  • This thread has a central conductor 1 and successively on this one first layer of enamel 2, a second layer enamelling 3 charged with weakly conductive particles and an outer thermo-adhesive enamel coating 4.
  • the first enamel layer 2 can be loaded or not of weakly conductive particles.
  • the enameled wire does not does not include the first enamel layer 2 above.
  • Such an enameled wire allows a choice of resin base of layer 3, of the resin of any layer 2, and weakly conductive particles dispersed in the layer 3 resin and possibly in the eventual layer 2, to obtain the desired high resistance Corona effect of enameled wire and partial discharges after winding this wire.
  • thermo-adherent overlay 4 which covers and is perfectly smooth to facilitate winding.
  • this overlay allows, by fusion after winding, bringing one turn to the other of the particles of their layer 3, as well as the shutter of all the air gaps between the turns.
  • the overlay 4 also provides very good support joined of the turns of the wound wire. She is also chosen to obtain excellent protection outside of the coil produced.
  • this external overlay 4 on the enameled wire advantageously avoids any impregnation subsequent enameled wire, for its winding, generally at the customer. This avoids pollution problems due to solvent fumes, the solvent vapors being processed at the manufacturer when they are not generally not at customers carrying out the windings.
  • the resin of the overlay 4 is advantageously also a resin applied melted and without any solvent on the wire already provided with its layer 3 and its possible layer 2. We thus removes fumes from traces of solvents from the overlay during the merger of the overlayer after winding the wire.
  • the enameled wire illustrated and described above may include a higher number of resin layers under the overlay thermo-adhesive 4.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulated Conductors (AREA)
  • Insulating Of Coils (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP98400405A 1997-02-24 1998-02-19 Lackierter Draht mit hoher Teilentladungsfestigkeit Ceased EP0860835A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9702166 1997-02-24
FR9702166A FR2760123B1 (fr) 1997-02-24 1997-02-24 Fil emaille de resistance elevee aux decharges partielles

Publications (1)

Publication Number Publication Date
EP0860835A1 true EP0860835A1 (de) 1998-08-26

Family

ID=9504095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400405A Ceased EP0860835A1 (de) 1997-02-24 1998-02-19 Lackierter Draht mit hoher Teilentladungsfestigkeit

Country Status (5)

Country Link
US (1) US6087592A (de)
EP (1) EP0860835A1 (de)
JP (1) JPH10261321A (de)
FR (1) FR2760123B1 (de)
PL (1) PL186455B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002083732A (ja) * 2000-09-08 2002-03-22 Murata Mfg Co Ltd インダクタ及びその製造方法
US6707210B2 (en) * 2001-03-30 2004-03-16 Hsieh Hsin-Mao Dual wire stator coil for a radiator fan
WO2003056575A1 (en) * 2001-12-21 2003-07-10 Pirelli Produtos Especiais Ltda Pulsed voltage surge resistant magnet wire
CN100394515C (zh) * 2004-04-29 2008-06-11 上海裕生特种线材有限公司 一种变频电磁线及其生产方法
JP5419211B2 (ja) * 2009-07-29 2014-02-19 日立金属株式会社 エナメル被覆絶縁電線およびその製造方法
CN101923917A (zh) * 2010-08-23 2010-12-22 诚信漆包线（惠州）有限公司 网络变压器用漆包线
CN102013285A (zh) * 2010-12-21 2011-04-13 苏州市南方欣达双金属材料有限公司 电机绕组用漆包线
ES3016832T3 (en) * 2018-01-16 2025-05-09 Schwering & Hasse Elektrodraht Gmbh Enamelled wire
JP7487845B2 (ja) * 2021-05-25 2024-05-21 三菱電機株式会社 絶縁電線およびこの絶縁電線を用いたコイル

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388371A (en) * 1981-06-29 1983-06-14 General Electric Company Self-bonding acrylic polymer overcoat for coated metal substrates
EP0287813A2 (de) * 1987-03-24 1988-10-26 Asea Brown Boveri Ab Elektrischer Leiter, der mit einer elektrischen Isolierung umgeben ist
EP0447789A1 (de) * 1990-02-16 1991-09-25 Alcatel Cuivre Emaillacke, Verfahren zu deren Herstellung und deren Verwendung in lackisolierten Leitern
EP0568415A1 (de) * 1992-04-27 1993-11-03 Udd-Fim S.A. Isolierungsverfahren eines elektrischen Leiters und isolierter elektrischer Daht hergestellt nach diesem Verfahren
EP0881646A1 (de) * 1996-11-22 1998-12-02 Kaneka Corporation Autoschmelzbarer isolierter darht
EP0961297A1 (de) * 1997-10-24 1999-12-01 The Furukawa Electric Co., Ltd. Mehrlagig isolierter draht und under verwendung desselben hergestellte transformatoren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008368A (en) * 1968-05-11 1977-02-15 Kabel-Und Metallwerke Gutehoffnungshutte Aktiengesellschaft Electrical conductor having inhibited polymer compositions
US3493413A (en) * 1968-08-27 1970-02-03 Anaconda Wire & Cable Co Dual imide coated electrical conductor
US3787255A (en) * 1972-05-30 1974-01-22 Essex International Inc Insulated cable with sheath of controlled peel strength and method
US4075421A (en) * 1975-12-23 1978-02-21 General Electric Company Direct current cable with resistivity graded insulation, and a method of transmitting direct current electrical energy
US4760296A (en) * 1979-07-30 1988-07-26 General Electric Company Corona-resistant insulation, electrical conductors covered therewith and dynamoelectric machines and transformers incorporating components of such insulated conductors
US4537804A (en) * 1982-05-05 1985-08-27 General Electric Company Corona-resistant wire enamel compositions and conductors insulated therewith
US5654095A (en) * 1995-06-08 1997-08-05 Phelps Dodge Industries, Inc. Pulsed voltage surge resistant magnet wire
US5861578A (en) * 1997-01-27 1999-01-19 Rea Magnet Wire Company, Inc. Electrical conductors coated with corona resistant, multilayer insulation system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388371A (en) * 1981-06-29 1983-06-14 General Electric Company Self-bonding acrylic polymer overcoat for coated metal substrates
EP0287813A2 (de) * 1987-03-24 1988-10-26 Asea Brown Boveri Ab Elektrischer Leiter, der mit einer elektrischen Isolierung umgeben ist
EP0447789A1 (de) * 1990-02-16 1991-09-25 Alcatel Cuivre Emaillacke, Verfahren zu deren Herstellung und deren Verwendung in lackisolierten Leitern
EP0568415A1 (de) * 1992-04-27 1993-11-03 Udd-Fim S.A. Isolierungsverfahren eines elektrischen Leiters und isolierter elektrischer Daht hergestellt nach diesem Verfahren
EP0881646A1 (de) * 1996-11-22 1998-12-02 Kaneka Corporation Autoschmelzbarer isolierter darht
EP0961297A1 (de) * 1997-10-24 1999-12-01 The Furukawa Electric Co., Ltd. Mehrlagig isolierter draht und under verwendung desselben hergestellte transformatoren

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Fiche technique de MAGNEBOND CAB-200 trouvée sur le site internet de NEXANS, http://www.nexans.fr/dyn/site.php3?page_id=85 *
Fiche technique de MAGNEBOND CL-180 trouvée sur le site internet de NEXANS, http://www.nexans.fr/dyn/site.php3?page_id=85 *

Also Published As

Publication number Publication date
PL186455B1 (pl) 2004-01-30
US6087592A (en) 2000-07-11
FR2760123B1 (fr) 1999-04-16
FR2760123A1 (fr) 1998-08-28
JPH10261321A (ja) 1998-09-29
PL324962A1 (en) 1998-08-31

Similar Documents

Publication Publication Date Title
FR2760123A1 (fr) Fil emaille de resistance elevee aux decharges partielles
EP1816656A2 (de) Korrosionsgeschütztes elektrisches Kabel
US2396283A (en) Method of terminating high-tension cables
CA2060875A1 (en) Electric field control devices for high-voltage cable transitions
JP4663256B2 (ja) 中空体の内壁面を被覆する方法とそれによって被覆された中空体
JPH03180011A (ja) 変圧器ブッシングにおける電界制御のためのコンデンサ本体
US11984782B2 (en) Stator coil and stator comprising said stator coil, rotating electrical machine, and manufacturing method for stator coil
US4006286A (en) High-voltage cable joint with conductive means to decrease electric field intensity therein
FR2462712A1 (fr) Dispositif de mesure de tensions alternatives elevees dans des installations de distribution haute tension
GB2258341A (en) Bonding wire.
US3266008A (en) Electrical terminal and method of applying same to conductors
US2318367A (en) Insulated electric conductor
WO2023014976A1 (en) Magnet wire with a semi-conductive insulation layer
EP1052659B1 (de) Mittel- oder Niedrigspannungstrockentransformator mit linear verteiltem elektrischem Feld zur Verteilung von elektrischer Energie für ländliche Netzwerke
JPS62286211A (ja) チツプコイル
JPH09298853A (ja) 電機巻線
EP0494807B1 (de) Anschlussklemme für Hochspannung
FR2734395A3 (fr) Film dielectrique metallise, et condensateur auto-cicatrisant realise a partir d'un tel film
FR2590071A1 (fr) Bobine de self unipolaire destinee a la protection contre la foudre
JPS63117641A (ja) 電動機のコイル絶縁方法
US274699A (en) George p
JP7310476B2 (ja) コイルエンド放電防止構造
SU1191954A1 (ru) Сухой стержневой трансформатор
FR2687500A1 (fr) Cable electrique a ame de cuivre multibrins.
JPH08237898A (ja) コロナ防止テープ

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 DE ES GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

17P Request for examination filed

Effective date: 19990226

AKX Designation fees paid

Free format text: AT DE ES GB IT SE

RBV Designated contracting states (corrected)

Designated state(s): AT DE ES GB IT SE

17Q First examination report despatched

Effective date: 20000811

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NEXANS

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20021024