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EP0103237A3 - Method of making resin-encapsulated coils for transformers - Google Patents

Method of making resin-encapsulated coils for transformers Download PDF

Info

Publication number
EP0103237A3
EP0103237A3 EP83108604A EP83108604A EP0103237A3 EP 0103237 A3 EP0103237 A3 EP 0103237A3 EP 83108604 A EP83108604 A EP 83108604A EP 83108604 A EP83108604 A EP 83108604A EP 0103237 A3 EP0103237 A3 EP 0103237A3
Authority
EP
European Patent Office
Prior art keywords
coils
jacket
winding
casting mold
mold
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.)
Granted
Application number
EP83108604A
Other languages
German (de)
Other versions
EP0103237B1 (en
EP0103237A2 (en
Inventor
Gerhard Dipl.-Ing. Altmann
Wolfgang Bendel
Rudolf Dedelmahr
Richard Dr. Pfeiffer
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.)
Transformatoren Union AG
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
Priority to AT83108604T priority Critical patent/ATE21185T1/en
Publication of EP0103237A2 publication Critical patent/EP0103237A2/en
Publication of EP0103237A3 publication Critical patent/EP0103237A3/en
Application granted granted Critical
Publication of EP0103237B1 publication Critical patent/EP0103237B1/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

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)

Abstract

Method of manufacturing a transformer winding embedded in casting resin by winding coils respectively by themselves and independently of one another for disposition thereof in tandem in axial direction of the winding includes placing the wound coils in a substantially annular casting mold having an inner and an outer jacket, with respective impregnated corrugated mats of insulating material as spacers disposed between the inner jacket and the coils as well as between the coils and the outer jacket, the inner and the outer jackets being fixed between mold end walls at respective ends of the casting mold; and disposing the casting mold containing the wound coils in an evacuated chamber and pouring casting resin into the casting mold through an axially parallel slot formed in the outer jacket thereof. Additionally included are spreading the inner jacket in radial direction so as to permanently deform the inner spacer to a dimension at which the radial extent of the inner spacer is reduced, the inner jacket being formed with axially parallel edges at ends thereof overlapping in circumferential direction and slidable on one another during the deformation so as to spread the inner jacket in radial direction; fixing the coils of the winding on the inner spacer against movement in axial direction; and surrounding respective edges at the ends of the inner and the outer jackets with an elastic layer at the inner face of the respective mold end walls.
EP83108604A 1982-09-14 1983-08-31 Method of making resin-encapsulated coils for transformers Expired EP0103237B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83108604T ATE21185T1 (en) 1982-09-14 1983-08-31 PROCESS FOR MANUFACTURING TRANSFORMER WINDINGS EMBEDDED IN CAST RESIN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823234098 DE3234098A1 (en) 1982-09-14 1982-09-14 METHOD FOR PRODUCING WINDINGS EMBEDDED IN CASTING RESIN FOR TRANSFORMERS
DE3234098 1982-09-14

Publications (3)

Publication Number Publication Date
EP0103237A2 EP0103237A2 (en) 1984-03-21
EP0103237A3 true EP0103237A3 (en) 1985-01-23
EP0103237B1 EP0103237B1 (en) 1986-07-30

Family

ID=6173212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108604A Expired EP0103237B1 (en) 1982-09-14 1983-08-31 Method of making resin-encapsulated coils for transformers

Country Status (5)

Country Link
US (1) US4540536A (en)
EP (1) EP0103237B1 (en)
JP (1) JPS5966110A (en)
AT (1) ATE21185T1 (en)
DE (2) DE3234098A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323154A1 (en) * 1983-06-27 1985-01-03 Siemens AG, 1000 Berlin und 8000 München METHOD FOR IMPREGNATING AND EMBEDDING ELECTRICAL WINDINGS
JPS6070941A (en) * 1983-09-28 1985-04-22 Tokuzo Inariba Pole tooth group structure for small electric motor and its manufacturing method
DE3430586A1 (en) * 1984-08-20 1986-02-27 Transformatoren Union Ag, 7000 Stuttgart METHOD FOR PRODUCING WINDINGS EMBEDDED IN CASTING RESIN FOR TRANSFORMERS
US4876050A (en) * 1985-06-24 1989-10-24 Murdock, Inc. Process for dry fiber winding and impregnating of projectiles
JPS63192219A (en) * 1987-02-04 1988-08-09 Takaoka Ind Ltd Manufacturing method of solid insulation type transformer
DE3720366A1 (en) * 1987-06-19 1988-12-29 Standard Elektrik Lorenz Ag METHOD FOR EMBEDDING AN ELECTRIC WINDING MATERIAL IN AN INSULATING MATERIAL AND CASTING FOR USE THEREOF
US5240661A (en) * 1990-04-24 1993-08-31 United Technlogies Corp. Fabrication process for composite swashplate
DE4426138C2 (en) * 1994-07-22 1998-04-23 Siemens Ag Casting mold for a transformer coil with the possibility of checking the potting
RU2145745C1 (en) * 1998-03-26 2000-02-20 Черных Геннадий Михайлович Unit for impregnating heavy-current coil and polymerizing epoxy compound
DE19835361A1 (en) * 1998-08-05 2000-02-10 Abb Patent Gmbh Method and device for impregnating conductor bars for the stator winding of an electrical machine
HK1047561A1 (en) * 1999-09-27 2003-02-28 Abb Inc. Method of manufacturing a transformer coil with a disposable mandrel and mold
US6221297B1 (en) 1999-09-27 2001-04-24 Abb Power T&D Company Inc. Method of manufacturing a transformer coil with a disposable wrap and band mold and integrated winding mandrel
US6223421B1 (en) 1999-09-27 2001-05-01 Abb Power T&D Company Inc. Method of manufacturing a transformer coil with a disposable mandrel and mold
RU2192702C2 (en) * 2001-01-03 2002-11-10 Открытое акционерное общество "Научно-исследовательский институт взрывозащищенных электрических машин" г. Кемерово Electric motor winding impregnation process
NL1017426C2 (en) * 2001-02-22 2002-08-23 Tno Method for manufacturing an electromagnetic coil, device obtained with the method and actuator.
US6930579B2 (en) * 2003-06-11 2005-08-16 Abb Technology Ag Low voltage composite mold
NL1025960C2 (en) * 2004-04-16 2005-10-18 Spectralyte Res & Dev B V Method and device for manufacturing a product from composite material.
CN100563978C (en) * 2005-03-29 2009-12-02 黄胜昌 Mould for integrally forming label mould
DE112009005222B4 (en) * 2009-09-11 2022-12-29 Hitachi Energy Switzerland Ag Transformer with a heat pipe and method of manufacturing a transformer
EP2320440B1 (en) * 2009-11-05 2013-01-09 ABB Technology AG Transformer winding and a method of reinforcing a transformer winding
EP2325852A1 (en) * 2009-11-18 2011-05-25 ABB Technology AG A method of manufacturing a transformer coil
US9257229B2 (en) 2011-09-13 2016-02-09 Abb Technology Ag Cast split low voltage coil with integrated cooling duct placement after winding process
CN112201453B (en) * 2019-07-08 2025-06-24 康利源科技（天津）股份有限公司 Amorphous alloy transformer winding structure
EP3797628B1 (en) 2019-08-06 2022-04-13 ASICS Corporation Injection-molded article and shoes
US11802053B2 (en) 2021-06-10 2023-10-31 Daniel Hodes Method and apparatus for the fabrication of diamond by shockwaves
CN116100717A (en) * 2021-11-11 2023-05-12 温州正泰电源电器有限公司 A New Type Transformer Casting Body Structure and Casting Process

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR429263A (en) * 1911-05-04 1911-09-19 Jonh Lewis Milton High voltage electric coils and their manufacturing method
GB204491A (en) * 1922-08-30 1923-10-04 Gen Electric Improvements in and relating to electrical coils and methods of manufacturing the same
US1616063A (en) * 1924-08-06 1927-02-01 John Stogdell Stokes Adjustable cylindrical tubing and method of making the same
GB586001A (en) * 1944-02-28 1947-03-04 Telephone Mfg Co Ltd Improvements in or relating to the insulation of coils for electrical apparatus
DE1251863B (en) * 1967-10-12
US3377602A (en) * 1966-05-31 1968-04-09 Eltra Corp Core supporting structure having encapsulated coil thereon
DE1490909A1 (en) * 1964-11-20 1969-06-19 Liebknecht Transformat High-voltage insulation, especially for current transformers, and processes for producing high-voltage insulation
DE2041047A1 (en) * 1969-08-21 1971-02-25 Ciba Geigy Method and device for impregnating bodies, in particular electrical windings, with hardenable casting resin compounds
US3796621A (en) * 1971-09-10 1974-03-12 Aluminum Co Of America Method of fabricating a laminate and product thereof
DE2733024A1 (en) * 1977-07-21 1979-01-25 Siemens Ag Insulation strips for three=dimensional component area - are wound to form overlapping pattern along geodetic lines applied by machine
DE2927400A1 (en) * 1979-07-06 1981-01-08 Siemens Ag HIGH VOLTAGE INSULATION, ESPECIALLY FOR ELECTRIC COILS, AND METHOD FOR PRODUCING THE HIGH VOLTAGE INSULATION
EP0031576A1 (en) * 1979-12-28 1981-07-08 Fuji Electric Co. Ltd. Method of casting-in an electrical appliance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1281258A (en) * 1917-02-13 1918-10-15 B R Greenblatt Contracting metal core for ring-molds.
US2856639A (en) * 1953-04-13 1958-10-21 Bernard F Forrest Method of encasing electric coils
US2937408A (en) * 1954-06-01 1960-05-24 Smith Corp A O Method to insulate dynamoelectric machine windings by centrifugally casting
US2925570A (en) * 1954-08-12 1960-02-16 Strock Howard Eugene Current transformer
US3046604A (en) * 1958-02-04 1962-07-31 Us Electrical Motors Inc Waterproof stator construction for submersible dynamoelectric machine
US3041562A (en) * 1958-09-10 1962-06-26 Essex Wire Corp Ignition coil
US3084418A (en) * 1959-03-03 1963-04-09 Sperry Rand Corp Method of encapsulating electrical stators
US3084390A (en) * 1959-09-17 1963-04-09 Controls Co Of America Molding apparatus for encapsulating a coil
FR1290787A (en) * 1961-06-03 1962-04-13 Epoxylite Corp Process for the coating of electrical components and articles produced according to this process

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251863B (en) * 1967-10-12
FR429263A (en) * 1911-05-04 1911-09-19 Jonh Lewis Milton High voltage electric coils and their manufacturing method
GB204491A (en) * 1922-08-30 1923-10-04 Gen Electric Improvements in and relating to electrical coils and methods of manufacturing the same
US1616063A (en) * 1924-08-06 1927-02-01 John Stogdell Stokes Adjustable cylindrical tubing and method of making the same
GB586001A (en) * 1944-02-28 1947-03-04 Telephone Mfg Co Ltd Improvements in or relating to the insulation of coils for electrical apparatus
DE1490909A1 (en) * 1964-11-20 1969-06-19 Liebknecht Transformat High-voltage insulation, especially for current transformers, and processes for producing high-voltage insulation
US3377602A (en) * 1966-05-31 1968-04-09 Eltra Corp Core supporting structure having encapsulated coil thereon
DE2041047A1 (en) * 1969-08-21 1971-02-25 Ciba Geigy Method and device for impregnating bodies, in particular electrical windings, with hardenable casting resin compounds
US3796621A (en) * 1971-09-10 1974-03-12 Aluminum Co Of America Method of fabricating a laminate and product thereof
DE2733024A1 (en) * 1977-07-21 1979-01-25 Siemens Ag Insulation strips for three=dimensional component area - are wound to form overlapping pattern along geodetic lines applied by machine
DE2927400A1 (en) * 1979-07-06 1981-01-08 Siemens Ag HIGH VOLTAGE INSULATION, ESPECIALLY FOR ELECTRIC COILS, AND METHOD FOR PRODUCING THE HIGH VOLTAGE INSULATION
EP0031576A1 (en) * 1979-12-28 1981-07-08 Fuji Electric Co. Ltd. Method of casting-in an electrical appliance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 6, Nr. 234(E-143)(1112), 20. November 1982; & JP-A-57 134 917 (HITACHI SEISAKUSHO) 20.08.1982 *

Also Published As

Publication number Publication date
DE3364953D1 (en) 1986-09-04
JPS5966110A (en) 1984-04-14
EP0103237B1 (en) 1986-07-30
EP0103237A2 (en) 1984-03-21
ATE21185T1 (en) 1986-08-15
DE3234098A1 (en) 1984-03-15
US4540536A (en) 1985-09-10

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