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GB1182872A - Construction of Electrical Induction Apparatus. - Google Patents

Construction of Electrical Induction Apparatus.

Info

Publication number
GB1182872A
GB1182872A GB1343768A GB1343768A GB1182872A GB 1182872 A GB1182872 A GB 1182872A GB 1343768 A GB1343768 A GB 1343768A GB 1343768 A GB1343768 A GB 1343768A GB 1182872 A GB1182872 A GB 1182872A
Authority
GB
United Kingdom
Prior art keywords
insulating
particles
coating
transformer
insulating sheets
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
GB1343768A
Inventor
Raymond James Price
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of GB1182872A publication Critical patent/GB1182872A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • 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
    • 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
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
    • 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
    • H01F27/327—Encapsulating or impregnating
    • H01F2027/328—Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Abstract

1,182,872. Transformers; electric coils. DOW CORNING CORP. 20 March, 1968 [11 April, 1967], No. 13437/68. Headings H1P and H1T. The electrical insulation separating two parts of an electrical induction apparatus, e.g. the concentric low and high voltage windings 17, 21 of a transformer, comprises one or more insulating sheets 23 coated with a resilient material 24 is which are embedded insulating particles 26 which extend above the surface of the coating. The apparatus is impregnated under vacuum with a curable liquid insulating material, e.g. epoxy resin or a silicone resin or elastomer, the particles 26 acting as spacers to allow the liquid to flow through the apparatus. The insulating sheets are preferably formed by coating kraft paper, cloth, insulating plastic or a combination of these with an uncured elastomer. Silica (e.g. zirconium orthosilicate sand), glass beads or particles of cured plastic material such as epoxy resin are dropped on the coating, and the latter is then cured. In a transformer the coated insulating sheets may also be used to separate other layers of turns.
GB1343768A 1967-04-11 1968-03-20 Construction of Electrical Induction Apparatus. Expired GB1182872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63007767A 1967-04-11 1967-04-11

Publications (1)

Publication Number Publication Date
GB1182872A true GB1182872A (en) 1970-03-04

Family

ID=24525656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343768A Expired GB1182872A (en) 1967-04-11 1968-03-20 Construction of Electrical Induction Apparatus.

Country Status (3)

Country Link
FR (1) FR1558855A (en)
GB (1) GB1182872A (en)
NL (1) NL6805059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119175A (en) * 1982-04-19 1983-11-09 Hitachi Ltd Molded coil structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637729B1 (en) * 1988-10-07 1995-03-10 Transfix Soc Nouv HIGH-VOLTAGE / LOW-VOLTAGE DISTRIBUTION TRANSFORMER WITH DRY ISOLATION AND METHOD FOR PRODUCING SUCH A TRANSFORMER
US5861791A (en) * 1995-06-21 1999-01-19 Brunswick Corporation Ignition coil with non-filtering/non-segregating secondary winding separators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119175A (en) * 1982-04-19 1983-11-09 Hitachi Ltd Molded coil structure

Also Published As

Publication number Publication date
FR1558855A (en) 1969-02-28
NL6805059A (en) 1968-10-14

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees