UA88942C2 - Transformer core - Google Patents

Transformer core

Info

Publication number
UA88942C2
UA88942C2 UAA200709314A UAA200709314A UA88942C2 UA 88942 C2 UA88942 C2 UA 88942C2 UA A200709314 A UAA200709314 A UA A200709314A UA A200709314 A UAA200709314 A UA A200709314A UA 88942 C2 UA88942 C2 UA 88942C2
Authority
UA
Ukraine
Prior art keywords
core
interior
transformer core
eddy currents
core interior
Prior art date
Application number
UAA200709314A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Кристоф Плётнер
Original Assignee
Сименс Акциенгезэльшафт
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 Сименс Акциенгезэльшафт filed Critical Сименс Акциенгезэльшафт
Publication of UA88942C2 publication Critical patent/UA88942C2/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
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • 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
    • 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
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets

Landscapes

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

Abstract

The invention relates to a transformer core comprising a core interior consisting of a magnetisable material. Magnetic leakage fluxes create eddy currents in the outer core regions, which lead to power losses and local overheating. Said leakage fluxes are channelled and conducted away from the outer region of the core interior by shielding, which partially encompasses the core interior and consists of at least one layered magnetisable material. This permits the formation of eddy currents in the core interior to be significantly reduced and thus prevents local overheating of the transformer core and power losses.
UAA200709314A 2005-02-16 2006-02-10 Transformer core UA88942C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005008302A DE102005008302B4 (en) 2005-02-16 2005-02-16 Transformer core with magnetic shielding

Publications (1)

Publication Number Publication Date
UA88942C2 true UA88942C2 (en) 2009-12-10

Family

ID=36177826

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200709314A UA88942C2 (en) 2005-02-16 2006-02-10 Transformer core

Country Status (10)

Country Link
EP (1) EP1849169B1 (en)
KR (1) KR101003933B1 (en)
CN (1) CN101120421A (en)
BR (1) BRPI0607872A2 (en)
CA (1) CA2597934C (en)
DE (1) DE102005008302B4 (en)
MX (1) MX2007009717A (en)
RU (1) RU2412498C2 (en)
UA (1) UA88942C2 (en)
WO (1) WO2006087294A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022225498A1 (en) 2021-04-19 2022-10-27 Леонид Адамович БИЛЫЙ Three-phase transformer

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101933106A (en) 2007-10-29 2010-12-29 西门子变压器奥地利有限责任两合公司 Transformer core having a stray field shield
KR101407884B1 (en) * 2009-11-20 2014-06-16 미쓰비시덴키 가부시키가이샤 Transformer
CN101777416B (en) * 2010-03-15 2011-12-14 贵阳新星变压器有限公司 Rectangular fillet iron core for shell type transformer
CN102163488A (en) * 2010-11-25 2011-08-24 文泽生 Amorphous oil-immersed air-core reactor with full magnetic shielding
CN106571210B (en) * 2015-10-09 2018-10-12 特变电工沈阳变压器集团有限公司 A kind of 110kV transformers
JP6857494B2 (en) * 2016-12-26 2021-04-14 株式会社日立産機システム Static induction electric device
DE102020215178A1 (en) 2020-12-02 2022-06-02 BSH Hausgeräte GmbH Transformer for a switching power supply
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 (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277434B (en) * 1963-09-10 1968-09-12 Westinghouse Electric Corp Magnetic and corona shield for electrical induction devices
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
CH484499A (en) * 1968-06-29 1970-01-15 Bbc Brown Boveri & Cie Induction device, in particular transformer or choke coil
US3962661A (en) * 1975-04-22 1976-06-08 International Telephone And Telegraph Corporation Magnetically shunted current transformer
NL7904379A (en) * 1979-06-05 1980-12-09 Philips Nv TRANSFORMER.
JPS5793512A (en) * 1980-12-03 1982-06-10 Meidensha Electric Mfg Co Ltd Fixation of bound iron core and winding
DE3141972A1 (en) * 1981-10-22 1983-05-11 Transformatoren Union Ag, 7000 Stuttgart Iron core for electrical inductors
JPS61259512A (en) * 1985-05-14 1986-11-17 Fuji Electric Co Ltd Radial block core
DE3627890A1 (en) * 1986-08-16 1988-02-25 Philips Patentverwaltung Transformer having a magnetic screen, and a method for producing such a screen
DE3940025A1 (en) * 1989-12-04 1991-06-06 Michael Riedel Transformatoren Mains transformer with interwinding magnetic screen - uses isolating layer of ferrite or magnetic glass
EP0477413B1 (en) * 1990-09-27 1995-08-09 Siemens Aktiengesellschaft Method for reducing hysteresis and electromechanical converter with hysteresis reduction
DE10350262A1 (en) * 2002-12-16 2004-07-22 Siemens Ag Österreich Transformer having two windings e.g. for power transformer, has flexible ferrite polymer foil applied over outer winding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022225498A1 (en) 2021-04-19 2022-10-27 Леонид Адамович БИЛЫЙ Three-phase transformer

Also Published As

Publication number Publication date
WO2006087294A1 (en) 2006-08-24
EP1849169B1 (en) 2016-06-15
DE102005008302B4 (en) 2010-09-02
EP1849169A1 (en) 2007-10-31
RU2412498C2 (en) 2011-02-20
CA2597934C (en) 2015-04-14
BRPI0607872A2 (en) 2009-10-20
KR101003933B1 (en) 2010-12-30
CA2597934A1 (en) 2006-08-24
RU2007134373A (en) 2009-03-27
CN101120421A (en) 2008-02-06
KR20070103052A (en) 2007-10-22
MX2007009717A (en) 2007-09-26
DE102005008302A1 (en) 2006-08-24

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