GB1342426A - Insulated electrical conductor - Google Patents

Insulated electrical conductor

Info

Publication number
GB1342426A
GB1342426A GB1746571A GB1746571A GB1342426A GB 1342426 A GB1342426 A GB 1342426A GB 1746571 A GB1746571 A GB 1746571A GB 1746571 A GB1746571 A GB 1746571A GB 1342426 A GB1342426 A GB 1342426A
Authority
GB
United Kingdom
Prior art keywords
tape
conductor
glass
varnish
flakes
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
GB1746571A
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
Allmanna Svenska Elektriska 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
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1342426A publication Critical patent/GB1342426A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
    • H01B3/105—Wires with oxides

Abstract

1342426 Coils for dynamo-electric machines ALLMANNA SVENSKA ELEKTRISKA AB 27 May 1971 [5 June 1970] 17465/71 Heading H2A [Also in Divisions H1 and H5] A varnish-insulated electrical conductor, for use in a coil of a dynamo-electric machine, is at least partly surrounded by a corona-resistant layer comprising one or two insulating tapes 13, 14 attached to the layer of varnish 11 and running in the longitudinal direction of the conductor. The tape is folded around the conductor, and several such conductors are then bundled together and surrounded by further insulation 25 to form the complete coil, which is placed in a core slot 38. Gaps, if any, between the edges of the tape(s) surrounding each conductor are arranged to overly those sides of the conductor which, in the assembled coil, face adjacent conductors. The corona-resistant tape 13, 14 comprises either (i) mica or glass flakes alone, or (ii) a mixture of such flakes with a linear polymer and/or fibres of cellulose and glass. The tape may be strengthened by (i) applying a glass fibre cloth to one side of the tape; (ii) impregnating the tape with a flexible resin; or (iii) applying a polymer film 26 to the outside of the tape. A resinous binder secures the tape 13, 14 to the varnish 11 and (when used) the film (iii) to the tape. The further insulation 25 surrounding the whole conductor bundle comprises: (i) tape wrapped around the bundle and formed of mica flakes on a paper or glass-cloth carrier, the tape either carrying or being subsequently impregnated with asphalt or an epoxy or polyester resin; or (ii) silicone rubber applied in tape or paste form. The further insulation may itself be wrapped in PTFE tape. Lists of the varnishes, polymers, resins, etc. that may be used are given.
GB1746571A 1970-06-05 1971-05-27 Insulated electrical conductor Expired GB1342426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE780470A SE342531B (en) 1970-06-05 1970-06-05

Publications (1)

Publication Number Publication Date
GB1342426A true GB1342426A (en) 1974-01-03

Family

ID=20272363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1746571A Expired GB1342426A (en) 1970-06-05 1971-05-27 Insulated electrical conductor

Country Status (5)

Country Link
JP (1) JPS5292203U (en)
CH (1) CH524230A (en)
DE (1) DE2126852A1 (en)
GB (1) GB1342426A (en)
SE (1) SE342531B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2338841A (en) * 1998-05-30 1999-12-29 Gen Electric Corona resistant insulating coating for end windings of a dem
SG94321A1 (en) * 1995-11-07 2003-02-18 Hitachi Ltd Transformer, coil, wire and producing method therefor
CN104918344A (en) * 2015-06-11 2015-09-16 南车戚墅堰机车车辆工艺研究所有限公司 Multilayer induction coil and preparation method thereof
CN109994254A (en) * 2019-04-15 2019-07-09 苏州贯龙电磁线有限公司 A kind of 10kV motor winding wire
CN109994254B (en) * 2019-04-15 2024-04-16 苏州贯龙电磁线有限公司 Winding wire for 10kV motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740544C2 (en) * 1977-09-06 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Conductor bar of an electrical machine
JP2014060899A (en) * 2012-09-19 2014-04-03 Fuji Electric Co Ltd Rotor winding insulation structure of rotary electric machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS457240Y1 (en) * 1967-03-29 1970-04-08

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG94321A1 (en) * 1995-11-07 2003-02-18 Hitachi Ltd Transformer, coil, wire and producing method therefor
GB2338841A (en) * 1998-05-30 1999-12-29 Gen Electric Corona resistant insulating coating for end windings of a dem
US6181042B1 (en) 1998-05-30 2001-01-30 General Electric Co. Method for preventing corona surface damage in end windings of air-cooled motors and generators
GB2338841B (en) * 1998-05-30 2002-05-01 Gen Electric Method for preventing corona surface damage in end windings of air-cooled motors and generators
AU747657B2 (en) * 1998-05-30 2002-05-16 General Electric Company Method for preventing corona surface damage in end windings of air-cooled motors and generators
CN104918344A (en) * 2015-06-11 2015-09-16 南车戚墅堰机车车辆工艺研究所有限公司 Multilayer induction coil and preparation method thereof
CN104918344B (en) * 2015-06-11 2016-08-24 南车戚墅堰机车车辆工艺研究所有限公司 A kind of multilamellar induction coil and preparation method thereof
CN109994254A (en) * 2019-04-15 2019-07-09 苏州贯龙电磁线有限公司 A kind of 10kV motor winding wire
CN109994254B (en) * 2019-04-15 2024-04-16 苏州贯龙电磁线有限公司 Winding wire for 10kV motor

Also Published As

Publication number Publication date
CH524230A (en) 1972-06-15
DE2126852A1 (en) 1971-12-16
JPS5292203U (en) 1977-07-09
SE342531B (en) 1972-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years