GB916100A - Improvements relating to insulating coatings on metals - Google Patents

Improvements relating to insulating coatings on metals

Info

Publication number
GB916100A
GB916100A GB212160A GB212160A GB916100A GB 916100 A GB916100 A GB 916100A GB 212160 A GB212160 A GB 212160A GB 212160 A GB212160 A GB 212160A GB 916100 A GB916100 A GB 916100A
Authority
GB
United Kingdom
Prior art keywords
coating
conductor
bed
cure
coil
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
GB212160A
Inventor
Walter Henry Parriss
John Gale Wellings
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB212160A priority Critical patent/GB916100A/en
Publication of GB916100A publication Critical patent/GB916100A/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

Abstract

916,100. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 17, 1961 [Jan. 20, 1960], No. 2121/60. Class 38 (2). A process of producing an insulated winding comprising a coiled conductor formed of a strip wound on edge (such as the primary of a current transformer) consists of heating the coiled conductor, immersing in a bed of powdered epoxy resin, fluidized by the passage of a gaseous medium therethrough to form an initial coating on the conductor. The coated conductor is then removed from the bed and heated to a temperature sufficient to cure the resin coating and while still hotdipped a second time in the bed to form a further insulating coating, the conductor then being compressed so that the turns are held together by the adhesion of the uncured second coating which is again heated to cure it. The coil may be cooled quickly before being compressed. Initially the coil may be pre-treated with an epoxy primer varnish to improve adhesion of the first coating to the copper. If it is desired to encapsulate the whole winding the dipping process is repeated. Details of several variations in the method of coating current transformer coils are given. Specifications 759,214 and 915,099 are referred to.
GB212160A 1960-01-20 1960-01-20 Improvements relating to insulating coatings on metals Expired GB916100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB212160A GB916100A (en) 1960-01-20 1960-01-20 Improvements relating to insulating coatings on metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB212160A GB916100A (en) 1960-01-20 1960-01-20 Improvements relating to insulating coatings on metals

Publications (1)

Publication Number Publication Date
GB916100A true GB916100A (en) 1963-01-16

Family

ID=9733963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB212160A Expired GB916100A (en) 1960-01-20 1960-01-20 Improvements relating to insulating coatings on metals

Country Status (1)

Country Link
GB (1) GB916100A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008048A1 (en) * 1978-07-31 1980-02-20 Sumitomo Bakelite Company Limited A method of manufacturing an electrical article
EP0511062A1 (en) * 1991-04-25 1992-10-28 SAGEM ALLUMAGE Société Anonyme Method for sealing a device such as an induction coil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008048A1 (en) * 1978-07-31 1980-02-20 Sumitomo Bakelite Company Limited A method of manufacturing an electrical article
EP0511062A1 (en) * 1991-04-25 1992-10-28 SAGEM ALLUMAGE Société Anonyme Method for sealing a device such as an induction coil
FR2675943A1 (en) * 1991-04-25 1992-10-30 Sagem Allumage METHOD OF SEALING A WORKPIECE SUCH AS AN INDUCTION COIL AND MOLD FOR IMPLEMENTING THE PROCESS

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