FR2759488B1 - DEVICE FOR PROTECTION AGAINST EDDY CURRENTS AND THREE-PHASE TRANSFORMER - Google Patents

DEVICE FOR PROTECTION AGAINST EDDY CURRENTS AND THREE-PHASE TRANSFORMER

Info

Publication number
FR2759488B1
FR2759488B1 FR9801357A FR9801357A FR2759488B1 FR 2759488 B1 FR2759488 B1 FR 2759488B1 FR 9801357 A FR9801357 A FR 9801357A FR 9801357 A FR9801357 A FR 9801357A FR 2759488 B1 FR2759488 B1 FR 2759488B1
Authority
FR
France
Prior art keywords
protection against
eddy currents
phase transformer
against eddy
transformer
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.)
Expired - Fee Related
Application number
FR9801357A
Other languages
French (fr)
Other versions
FR2759488A1 (en
Inventor
Yoshiya Higuchi
Makoto Koizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2759488A1 publication Critical patent/FR2759488A1/en
Application granted granted Critical
Publication of FR2759488B1 publication Critical patent/FR2759488B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Coils Of Transformers For General Uses (AREA)
FR9801357A 1997-02-07 1998-02-05 DEVICE FOR PROTECTION AGAINST EDDY CURRENTS AND THREE-PHASE TRANSFORMER Expired - Fee Related FR2759488B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02528197A JP3566481B2 (en) 1997-02-07 1997-02-07 Eddy current shield device and three-phase transformer

Publications (2)

Publication Number Publication Date
FR2759488A1 FR2759488A1 (en) 1998-08-14
FR2759488B1 true FR2759488B1 (en) 2000-09-01

Family

ID=12161648

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9801357A Expired - Fee Related FR2759488B1 (en) 1997-02-07 1998-02-05 DEVICE FOR PROTECTION AGAINST EDDY CURRENTS AND THREE-PHASE TRANSFORMER

Country Status (5)

Country Link
JP (1) JP3566481B2 (en)
KR (1) KR19980071129A (en)
CN (1) CN1086502C (en)
FR (1) FR2759488B1 (en)
TW (1) TW359841B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH695643A5 (en) * 2001-07-03 2006-07-14 Cfw Emf Consulting Ag Shield for receiving at least one a non-ionizing radiation or a non-ionizing field generating object.
US8659380B2 (en) * 2006-05-19 2014-02-25 Abb Technology Ltd. Reactor shield
WO2010078682A1 (en) * 2008-12-30 2010-07-15 特变电工沈阳变压器集团有限公司 Magnetic leakage shielding method of super-large capacity transformer
JP5641578B2 (en) * 2011-09-01 2014-12-17 トクデン株式会社 Superheated steam generator
KR101236447B1 (en) 2012-06-28 2013-02-22 국제전기 주식회사 Wedge core mounting structure of electromotion vehicle transformer
JP6577545B2 (en) 2017-09-15 2019-09-18 ファナック株式会社 Three-phase transformer
JP6856707B2 (en) * 2019-06-21 2021-04-07 ファナック株式会社 Three-phase transformer
EP3916742A1 (en) * 2020-05-27 2021-12-01 ABB Power Grids Switzerland AG Transformer insulation modification

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207318A (en) * 1984-03-31 1985-10-18 Toshiba Corp Transformer
FR2730849B1 (en) * 1995-02-20 1997-05-09 Actia TRANSFORMER, PARTICULARLY FOR AN ENERGY CONVERTER, AND A RESONANCE ENERGY CONVERTER HAVING SUCH A TRANSFORMER

Also Published As

Publication number Publication date
FR2759488A1 (en) 1998-08-14
KR19980071129A (en) 1998-10-26
JP3566481B2 (en) 2004-09-15
CN1086502C (en) 2002-06-19
JPH10223454A (en) 1998-08-21
TW359841B (en) 1999-06-01
CN1190242A (en) 1998-08-12

Similar Documents

Publication Publication Date Title
DE59913894D1 (en) Protective device and operator station
DE69712759T2 (en) EDDY CURRENT TESTING
DE69731155D1 (en) Weighing and packaging system
DE69736737D1 (en) EDDY CURRENT FAULT DETECTOR
IL134883A0 (en) Eddy current pipeline inspection device and method
DE69706043D1 (en) INTEGRATED CIRCUIT PROTECTION AND METHOD
DE69510149T2 (en) Hot welding device
FR2752622B1 (en) METHOD AND APPARATUS FOR SUPPRESSING EDDY CURRENTS IN OIL EXPLOITATION
DE69517913T2 (en) Fixing device and fixing method
ITRM940542A0 (en) DEVICE FOR CLAMPING AND WELDING
DE59703717D1 (en) Knee protection device
DE69500170T2 (en) Protection device for an electromagnetic radiation sensitive device
DE69906870D1 (en) Detection device and detection method
FR2759488B1 (en) DEVICE FOR PROTECTION AGAINST EDDY CURRENTS AND THREE-PHASE TRANSFORMER
FR2757954B1 (en) DETECTION HEAD AND COLLIMATOR FOR GAMMA-CAMERA
DE69713817D1 (en) Protective cover and apparatus equipped with it
EE9900358A (en) Method and device for induction closure
IL118517A0 (en) Method and device for protection from pulsed radiation
BR9506134A (en) Receptacle member and protective packaging system
DE69803598T2 (en) DETECTION METHOD AND DEVICE
NO995370L (en) Voltage sensors for measurement and protection purposes in medium voltage switchgear
EP1018807A4 (en) Error protecting method and error protective device
DE69402262T2 (en) Included eddy current ultra-mixing device
DK0902998T3 (en) Transformer with protective device
FR2747474B1 (en) PORTABLE TESTER FOR SEMICONDUCTOR POWER COMPONENTS AND THEIR PROTECTIVE ELEMENTS

Legal Events

Date Code Title Description
ST Notification of lapse