GB1237410A - Improvements in and relating to winding assemblies for transformers or choke coils - Google Patents

Improvements in and relating to winding assemblies for transformers or choke coils

Info

Publication number
GB1237410A
GB1237410A GB37552/68A GB3755268A GB1237410A GB 1237410 A GB1237410 A GB 1237410A GB 37552/68 A GB37552/68 A GB 37552/68A GB 3755268 A GB3755268 A GB 3755268A GB 1237410 A GB1237410 A GB 1237410A
Authority
GB
United Kingdom
Prior art keywords
bag
winding
bags
envelope
transformers
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
GB37552/68A
Inventor
Egbertus Adrianus Frowein
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.)
Smit Nijmegen Electrotechnische Fabrieken NV
Original Assignee
Smit Nijmegen Electrotechnische Fabrieken NV
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
Priority claimed from NL6711138A external-priority patent/NL6711138A/xx
Priority claimed from NL6801940A external-priority patent/NL6801940A/xx
Application filed by Smit Nijmegen Electrotechnische Fabrieken NV filed Critical Smit Nijmegen Electrotechnische Fabrieken NV
Publication of GB1237410A publication Critical patent/GB1237410A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/02—Casings
    • 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
    • H01F27/002—Arrangements provided on the transformer facilitating its transport
    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/303—Clamping coils, windings or parts thereof together
    • 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
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/229—Non-specific enumeration
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/11—Deposition methods from solutions or suspensions
    • C03C2218/112—Deposition methods from solutions or suspensions by spraying
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Abstract

1,237,410. Transformers; inductors. SMIT NIJMEGEN ELECTROTECHNISCHE FABRIEKEN N.V. 6 Aug., 1968 [14 Aug., 1967; 12 Feb., 1968], No. 37552/68. Heading H1T. A winding 1 for a transformer or choke coil is compressed in the axial direction by means of hydraulically or pneumatically expanded bags 4 placed between one or both end faces of the winding and an envelope 6, 7 wrapped around the winding. In Fig. 1, pressure rings 2, 3 are placed adjacent the end faces of the windings and an annular bag is placed against ring 3. A paper cap 5 is placed over the bag and bundles or bands of glass fibre wires 6 are wound around the assembly. Gas or liquid under pressure is then supplied to the bag to exert the required compressive force on the winding. The assembly may then be coated in a hardening synthetic material 7 to render the envelope gas-andliquid-tight and the space 15 inside the envelope filled with transformer oil. If two concentric windings (as 16, 17, Fig. 3, not shown) are to be placed on one core leg, they may be separated by an insulating tube (19) and wrapped in a common envelope, but provided with separate annular bags (22, 23). The pressure ring may be formed with a projecting portion so that the adjacent surface of the bag is indented (Fig. 4, not shown). In this embodiment the bag(s) may be made of rubber or synthetic material reinforced by fibrous substances. In a further modification (Figs. 5, 6, not shown) a plurality of angularly-spaced cupshaped bags are disposed between two complementary-shaped wooden pressure rings. The bags may be constituted by bellows of metal, which may also act as potential-controlling rings.
GB37552/68A 1967-08-14 1968-08-06 Improvements in and relating to winding assemblies for transformers or choke coils Expired GB1237410A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6711138A NL6711138A (en) 1967-08-14 1967-08-14
NL6801940A NL6801940A (en) 1968-02-12 1968-02-12

Publications (1)

Publication Number Publication Date
GB1237410A true GB1237410A (en) 1971-06-30

Family

ID=26644228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37552/68A Expired GB1237410A (en) 1967-08-14 1968-08-06 Improvements in and relating to winding assemblies for transformers or choke coils

Country Status (9)

Country Link
US (1) US3564472A (en)
AT (1) AT285726B (en)
BE (1) BE719116A (en)
CH (1) CH470738A (en)
DE (1) DE1763783B1 (en)
FR (1) FR1578610A (en)
GB (1) GB1237410A (en)
NO (1) NO119953B (en)
SE (1) SE339960B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810058A (en) * 1973-03-28 1974-05-07 Westinghouse Electric Corp Expandable coil bracing tubes for electrical inductive apparatus
SE386534B (en) * 1974-11-08 1976-08-09 Asea Ab HYDRAULIC TRAILER TRANSFORMATION CLAMPING DEVICE
US4055826A (en) * 1976-04-29 1977-10-25 General Electric Company Resiliently supported windings in an electrical reactor
DE3205525A1 (en) * 1982-02-12 1983-08-25 Siemens AG, 1000 Berlin und 8000 München METHOD FOR MAINTENANCE, ASSEMBLY OR REPAIR A SINGLE OR MULTIPOLAR ENCLOSED, PRESSURE GAS-INSULATED HIGH VOLTAGE LINE OR HIGH VOLTAGE SWITCHGEAR
DE102008045846A1 (en) 2008-09-05 2010-03-25 B2 Electronic Gmbh High Voltage Transformer
CN113223829A (en) * 2021-04-23 2021-08-06 东莞市拥城电子有限公司 Transformer and processing technology thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714480C (en) * 1930-04-07 1941-11-29 Siemens Ag Power transformer
DE700635C (en) * 1933-01-14 1940-12-24 Siemens Schuckertwerke Akt Ges Transformer for great power
CH417760A (en) * 1964-12-10 1966-07-31 Oerlikon Maschf Winding, especially for large transformers
FR1437071A (en) * 1965-06-10 1966-04-29 Inst Sheathing device for electrical appliances, in particular transformers of the low insulation and low coolant type
FR1468865A (en) * 1965-10-22 1967-02-10 Westinghouse Electric Corp Electric induction device

Also Published As

Publication number Publication date
SE339960B (en) 1971-11-01
FR1578610A (en) 1969-08-14
CH470738A (en) 1969-03-31
AT285726B (en) 1970-11-10
US3564472A (en) 1971-02-16
DE1763783B1 (en) 1972-01-20
NO119953B (en) 1970-08-03
BE719116A (en) 1969-01-16

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