FR2082145A5 - Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer - Google Patents

Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer

Info

Publication number
FR2082145A5
FR2082145A5 FR7007818A FR7007818A FR2082145A5 FR 2082145 A5 FR2082145 A5 FR 2082145A5 FR 7007818 A FR7007818 A FR 7007818A FR 7007818 A FR7007818 A FR 7007818A FR 2082145 A5 FR2082145 A5 FR 2082145A5
Authority
FR
France
Prior art keywords
sheath
insulation
conducting layer
flexible
synthetic surface
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
FR7007818A
Other languages
French (fr)
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.)
Alstom SA
Original Assignee
Unelec SA
Alstom SA
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 Unelec SA, Alstom SA filed Critical Unelec SA
Priority to FR7007818A priority Critical patent/FR2082145A5/en
Application granted granted Critical
Publication of FR2082145A5 publication Critical patent/FR2082145A5/en
Expired legal-status Critical Current

Links

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
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
    • 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
    • H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/084—Glass or glass wool in binder
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/485—Other fibrous materials fabric
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

The windings of electrical machines are provided with a preformed porous insulating sheath which is pretreated with a flexible electrically conducting coating, and are impregnated with an insulating thermosetting resin after the sheath has been placed in position. The flexible conducting layer provides an equipotential surface for stators of high voltage generators and an impervious layer preventing electrical dishcharges due to inclusion of air pockets and uneven expansion of the impregnant. The porous sheath may be of e.g. paper and silicone resin which is flexible and rendered conductive by inclusion of e.g. graphite, is used to coat it before vacuum impregnation of the windings with thermosetting resin after placing the sheath in position.
FR7007818A 1970-03-04 1970-03-04 Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer Expired FR2082145A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7007818A FR2082145A5 (en) 1970-03-04 1970-03-04 Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7007818A FR2082145A5 (en) 1970-03-04 1970-03-04 Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer

Publications (1)

Publication Number Publication Date
FR2082145A5 true FR2082145A5 (en) 1971-12-10

Family

ID=9051694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7007818A Expired FR2082145A5 (en) 1970-03-04 1970-03-04 Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer

Country Status (1)

Country Link
FR (1) FR2082145A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033443A1 (en) * 1998-12-02 2000-06-08 Siemens Westinghouse Power Corporation Method to reduce partial discharge in high voltage stator coil's roebel filler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033443A1 (en) * 1998-12-02 2000-06-08 Siemens Westinghouse Power Corporation Method to reduce partial discharge in high voltage stator coil's roebel filler
US6228494B1 (en) 1998-12-02 2001-05-08 Siemens Westinghouse Power Corporation Method to reduce partial discharge in high voltage stator coil's roebel filler

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Legal Events

Date Code Title Description
ST Notification of lapse