BR8503952A - PROCESS FOR THE MANUFACTURE OF WINDINGS, INTEGRATED IN FOUNDRY RESIN, FOR TRANSFORMERS - Google Patents

PROCESS FOR THE MANUFACTURE OF WINDINGS, INTEGRATED IN FOUNDRY RESIN, FOR TRANSFORMERS

Info

Publication number
BR8503952A
BR8503952A BR8503952A BR8503952A BR8503952A BR 8503952 A BR8503952 A BR 8503952A BR 8503952 A BR8503952 A BR 8503952A BR 8503952 A BR8503952 A BR 8503952A BR 8503952 A BR8503952 A BR 8503952A
Authority
BR
Brazil
Prior art keywords
spools
mould
casting mould
casting
insulating material
Prior art date
Application number
BR8503952A
Other languages
Portuguese (pt)
Inventor
Gerhard Altmann
Wolfgang Bendel
Rudolf Dedelmahar
Richard Dr Pfeiffer
Original Assignee
Transformatoren Union Ag
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 Transformatoren Union Ag filed Critical Transformatoren Union Ag
Publication of BR8503952A publication Critical patent/BR8503952A/en

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Epoxy Resins (AREA)

Abstract

1. Method for manufacturing coils, embedded in cast resin, for transformers, - according to which, spools (1), lying one behind another in the axial direction, of the coil are wound each for itself and independently of one another, - according to which, one insulating material mat respectively, serves, in a radial direction, as a brace (2, 3) between an inner casing (5) of the casting mould and the spools (1), as well as between the spools (1) and an outer casing (6) of the casting mould, - according to which, the spools (1) are fixed in an axial direction by frictional contact on the inner brace (2), - according to which, the inner (5) and the outer casing (6) of the casting mould are fixed between mould en walls (10), - according to which, casting with a horizontal mould in an evacuated chamber, follows through a slit (8), parallel to the axis, in the outer casing (6) of the casting mould, and - according to which, the hardening of the cast resin mass follows, at least partly, in the mould with increased temperature and with atmospheric or higher pressure, characterised in that, - the insulating material mats comprise fabric of non-twisted loose glass fibre bundles (15, 16), crossed and impregnated with hardenable artificial resin, - individual threads (17), twisted in themselves, of shrinkable artificial resin are worked into this fabric along zig-zag lines lying substantially in the fabric plane, - the twisted threads (17) in the insulating material mat shrink, during the hardening of the artificial resin mass, introduced through the impregnating, before the insulating materiel mat is brought into the casting mould, and telescope the glass fibre bundles (15, 16) at their intersections, lying in the points of the zig-zag line, to form knotlike swellings, and in that, - these swellings clamp the spools (1) in the casting mould.
BR8503952A 1984-08-20 1985-08-19 PROCESS FOR THE MANUFACTURE OF WINDINGS, INTEGRATED IN FOUNDRY RESIN, FOR TRANSFORMERS BR8503952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843430586 DE3430586A1 (en) 1984-08-20 1984-08-20 METHOD FOR PRODUCING WINDINGS EMBEDDED IN CASTING RESIN FOR TRANSFORMERS

Publications (1)

Publication Number Publication Date
BR8503952A true BR8503952A (en) 1986-06-03

Family

ID=6243467

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8503952A BR8503952A (en) 1984-08-20 1985-08-19 PROCESS FOR THE MANUFACTURE OF WINDINGS, INTEGRATED IN FOUNDRY RESIN, FOR TRANSFORMERS

Country Status (5)

Country Link
EP (1) EP0172494B1 (en)
KR (1) KR920010357B1 (en)
AT (1) ATE35746T1 (en)
BR (1) BR8503952A (en)
DE (2) DE3430586A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426138C2 (en) * 1994-07-22 1998-04-23 Siemens Ag Casting mold for a transformer coil with the possibility of checking the potting
KR100310150B1 (en) * 1999-07-26 2001-09-29 윤종용 Resin molding method for a coil used in a transformer of a microwave oven
DE10255564B4 (en) * 2002-09-30 2005-10-27 Siemens Ag Casting mold for cylindrical cast resin coils
DE10248782B4 (en) * 2002-09-30 2005-08-04 Siemens Ag Casting mold for cylindrical cast resin coils
CN112652477B (en) * 2020-12-14 2022-08-16 山东电力设备有限公司 Full-automatic bonding method for coil oil duct filler strip

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5694713A (en) * 1979-12-28 1981-07-31 Fuji Electric Co Ltd Manufacturing method of coil spacer of resin mold type electrical apparatus
DE3234098A1 (en) * 1982-09-14 1984-03-15 Transformatoren Union Ag, 7000 Stuttgart METHOD FOR PRODUCING WINDINGS EMBEDDED IN CASTING RESIN FOR TRANSFORMERS
DE3236446A1 (en) * 1982-10-01 1984-04-05 Smit Transformatoren B.V., 6500 Nijmegen METHOD FOR THE PRODUCTION OF A WIRE OR FILM WRAPPING EMBEDDED IN A POWDERING MEASUREMENT AND WINDING MATERIAL USED FOR THE METHOD

Also Published As

Publication number Publication date
ATE35746T1 (en) 1988-07-15
EP0172494B1 (en) 1988-07-13
DE3563802D1 (en) 1988-08-18
DE3430586A1 (en) 1986-02-27
KR920010357B1 (en) 1992-11-27
EP0172494A1 (en) 1986-02-26
KR860002121A (en) 1986-03-26

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Legal Events

Date Code Title Description
PC Transfer

Free format text: SIEMENS S.A. (BR/SP)

TC Change of name
TE Change of address
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 19/08/2000