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EP2769389A4 - Wound transformer core and method of manufacture - Google Patents

Wound transformer core and method of manufacture

Info

Publication number
EP2769389A4
EP2769389A4 EP12841237.6A EP12841237A EP2769389A4 EP 2769389 A4 EP2769389 A4 EP 2769389A4 EP 12841237 A EP12841237 A EP 12841237A EP 2769389 A4 EP2769389 A4 EP 2769389A4
Authority
EP
European Patent Office
Prior art keywords
manufacture
transformer core
wound transformer
wound
core
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.)
Withdrawn
Application number
EP12841237.6A
Other languages
German (de)
French (fr)
Other versions
EP2769389A2 (en
Inventor
Keith D Earhart
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2769389A2 publication Critical patent/EP2769389A2/en
Publication of EP2769389A4 publication Critical patent/EP2769389A4/en
Withdrawn legal-status Critical Current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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP12841237.6A 2011-10-19 2012-10-18 Wound transformer core and method of manufacture Withdrawn EP2769389A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161627916P 2011-10-19 2011-10-19
US201261634123P 2012-02-22 2012-02-22
PCT/US2012/000520 WO2013058808A2 (en) 2011-10-19 2012-10-18 Wound transformer core and method of manufacture

Publications (2)

Publication Number Publication Date
EP2769389A2 EP2769389A2 (en) 2014-08-27
EP2769389A4 true EP2769389A4 (en) 2015-06-17

Family

ID=48141588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12841237.6A Withdrawn EP2769389A4 (en) 2011-10-19 2012-10-18 Wound transformer core and method of manufacture

Country Status (5)

Country Link
EP (1) EP2769389A4 (en)
BR (1) BR112014009610A2 (en)
CA (1) CA2853037A1 (en)
WO (1) WO2013058808A2 (en)
ZA (1) ZA201403037B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104252954A (en) * 2014-06-25 2014-12-31 上海置信电气非晶有限公司 Broken-yoke iron core of three-phase amorphous alloy transformer
CN114023539B (en) * 2021-11-03 2023-04-07 无锡普天铁心股份有限公司 Method capable of saving transformer core material
CN115222157B (en) * 2022-09-06 2023-11-07 江阴市晶磁电子有限公司 Intelligent prediction device for iron core data of current transformer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411374A (en) * 1943-01-07 1946-11-19 Westinghouse Electric Corp Magnetic core structure for threephase transformers
US2465798A (en) * 1946-03-28 1949-03-29 Gen Electric Magnetic core
US2498747A (en) * 1944-09-20 1950-02-28 Mcgraw Electric Co Electromagnetic device and method of making the same
DE2702455A1 (en) * 1977-01-21 1978-07-27 Andreev Three=phase transformer core - has three rectangular rings with parallel sides adjacent, to form triangular prism shape
US4557039A (en) * 1979-10-19 1985-12-10 Susan V. Manderson Method of manufacturing transformer cores
EP0518565A1 (en) * 1991-06-10 1992-12-16 Gec Alsthom Limited Method of making distribution transformers
US5210930A (en) * 1991-08-05 1993-05-18 Denki Tetsushin Industries Co., Ltd. Method of manufacturing wound core
US20110248808A1 (en) * 2010-04-07 2011-10-13 Abb Technology Ag Outdoor dry-type transformer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848684A (en) * 1986-11-22 1989-07-18 Kitamura Kiden Co., Ltd. Wound core having circular and elliptic outer surface portions
DE4100210C2 (en) * 1990-04-06 1993-10-28 Gen Electric Method of making a transformer winding
JP3752978B2 (en) * 2000-08-09 2006-03-08 ウシオ電機株式会社 Winding device and high voltage pulse generation circuit using winding device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411374A (en) * 1943-01-07 1946-11-19 Westinghouse Electric Corp Magnetic core structure for threephase transformers
US2498747A (en) * 1944-09-20 1950-02-28 Mcgraw Electric Co Electromagnetic device and method of making the same
US2465798A (en) * 1946-03-28 1949-03-29 Gen Electric Magnetic core
DE2702455A1 (en) * 1977-01-21 1978-07-27 Andreev Three=phase transformer core - has three rectangular rings with parallel sides adjacent, to form triangular prism shape
US4557039A (en) * 1979-10-19 1985-12-10 Susan V. Manderson Method of manufacturing transformer cores
EP0518565A1 (en) * 1991-06-10 1992-12-16 Gec Alsthom Limited Method of making distribution transformers
US5210930A (en) * 1991-08-05 1993-05-18 Denki Tetsushin Industries Co., Ltd. Method of manufacturing wound core
US5210930B1 (en) * 1991-08-05 1997-11-18 Denki Tetsushin Kogyo Kk Method of manufacturing wound core
US20110248808A1 (en) * 2010-04-07 2011-10-13 Abb Technology Ag Outdoor dry-type transformer

Also Published As

Publication number Publication date
BR112014009610A2 (en) 2017-05-09
EP2769389A2 (en) 2014-08-27
CA2853037A1 (en) 2013-04-25
WO2013058808A2 (en) 2013-04-25
WO2013058808A3 (en) 2014-03-06
ZA201403037B (en) 2016-02-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20140425

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20140902

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20150519

RIC1 Information provided on ipc code assigned before grant

Ipc: H01F 27/24 20060101AFI20150512BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151219