ATE549725T1 - TRANSFORMER CORE WITH SCATTERED FIELD SHIELDING - Google Patents

TRANSFORMER CORE WITH SCATTERED FIELD SHIELDING

Info

Publication number
ATE549725T1
ATE549725T1 AT07821945T AT07821945T ATE549725T1 AT E549725 T1 ATE549725 T1 AT E549725T1 AT 07821945 T AT07821945 T AT 07821945T AT 07821945 T AT07821945 T AT 07821945T AT E549725 T1 ATE549725 T1 AT E549725T1
Authority
AT
Austria
Prior art keywords
laminate
transformer core
plates
field shielding
scattered field
Prior art date
Application number
AT07821945T
Other languages
German (de)
Inventor
Peter Hamberger
Martin Mairinger
Original Assignee
Siemens Transformers Austria Gmbh & Co Kg
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 Siemens Transformers Austria Gmbh & Co Kg filed Critical Siemens Transformers Austria Gmbh & Co Kg
Application granted granted Critical
Publication of ATE549725T1 publication Critical patent/ATE549725T1/en

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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

The invention relates to a transformer core having a stray field shield, comprising at least one core leg (2', 2'', 2''') carrying a winding arrangement (13) and formed from a laminate stack (3), said laminate stack (3) being sealed by end plates (7', 7''), each end plate (7', 7'') being associated with a stray field shield (4', 4'') that comprises coated laminate plates (40', 40''), the layer planes (15) of which are disposed perpendicular to the layer planes (14) of the laminate stack (3), characterized in that the laminate plates (40', 40'') are disposed with laminate plate faces (9', 9'') pointing toward the laminate stack (3) to abut an exterior width surface (8', 8'') of an associated end plate (7', 7'').
AT07821945T 2007-10-29 2007-10-29 TRANSFORMER CORE WITH SCATTERED FIELD SHIELDING ATE549725T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/061585 WO2009056162A1 (en) 2007-10-29 2007-10-29 Transformer core having a stray field shield

Publications (1)

Publication Number Publication Date
ATE549725T1 true ATE549725T1 (en) 2012-03-15

Family

ID=39495518

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07821945T ATE549725T1 (en) 2007-10-29 2007-10-29 TRANSFORMER CORE WITH SCATTERED FIELD SHIELDING

Country Status (5)

Country Link
EP (1) EP2206126B1 (en)
CN (1) CN101933106A (en)
AT (1) ATE549725T1 (en)
ES (1) ES2382054T3 (en)
WO (1) WO2009056162A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4843749B2 (en) * 2009-11-20 2011-12-21 三菱電機株式会社 Transformer
US9640315B2 (en) 2013-05-13 2017-05-02 General Electric Company Low stray-loss transformers and methods of assembling the same
CN103680856B (en) * 2013-12-25 2016-09-28 深圳银利电器制造有限公司 Stem and the iron yoke rectilinear inductor iron core of stalloy otch
EP3244511A1 (en) * 2016-05-09 2017-11-15 Siemens Aktiengesellschaft Rotor bale and method for producing a rotor bale
WO2019204962A1 (en) * 2018-04-23 2019-10-31 Siemens Aktiengesellschaft Transformer cores and assembly methods thereof for high efficiency and high anti-corrosion performance
CN117095915A (en) * 2023-06-26 2023-11-21 西安西电变压器有限责任公司 Iron core, iron core structure and transformer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB218918A (en) 1923-09-18 1924-07-17 Gen Electric Improvements in and relating to electric transformers
DE1237677B (en) 1964-08-01 1967-03-30 Siemens Ag Magnetic shield arrangement for layered iron cores of transformers and inductors
US3464041A (en) * 1968-03-06 1969-08-26 Allis Chalmers Mfg Co Electrical transformer having leakage flux shield
US3614695A (en) 1970-09-24 1971-10-19 Westinghouse Canada Ltd Inductive apparatus with magnetic locking plates
US6873239B2 (en) * 2002-11-01 2005-03-29 Metglas Inc. Bulk laminated amorphous metal inductive device
AT413158B (en) 2003-12-09 2005-11-15 Va Tech Ebg Transformatoren Gm ELECTRIC MACHINE WITH A SHIELDING DEVICE AGAINST MAGNETIC STREUFLUSS
DE102005008302B4 (en) 2005-02-16 2010-09-02 Siemens Ag Transformer core with magnetic shielding

Also Published As

Publication number Publication date
CN101933106A (en) 2010-12-29
WO2009056162A1 (en) 2009-05-07
EP2206126A1 (en) 2010-07-14
EP2206126B1 (en) 2012-03-14
ES2382054T3 (en) 2012-06-04

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