JP2012112947A - 電子電力量計の変流器の磁気シールド - Google Patents

電子電力量計の変流器の磁気シールド Download PDF

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Publication number
JP2012112947A
JP2012112947A JP2011252144A JP2011252144A JP2012112947A JP 2012112947 A JP2012112947 A JP 2012112947A JP 2011252144 A JP2011252144 A JP 2011252144A JP 2011252144 A JP2011252144 A JP 2011252144A JP 2012112947 A JP2012112947 A JP 2012112947A
Authority
JP
Japan
Prior art keywords
shield
current transformer
hour meter
electronic watt
electronic
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.)
Pending
Application number
JP2011252144A
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English (en)
Japanese (ja)
Other versions
JP2012112947A5 (enExample
Inventor
Douglas Show Bradley
ブラッドリー・ダグラス・ショウ
Wein Ingram Dwight
ドュワイト・ウェイン・イングラム
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of JP2012112947A publication Critical patent/JP2012112947A/ja
Publication of JP2012112947A5 publication Critical patent/JP2012112947A5/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • 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
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Regulation Of General Use Transformers (AREA)
JP2011252144A 2010-11-24 2011-11-18 電子電力量計の変流器の磁気シールド Pending JP2012112947A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/953,713 US8664935B2 (en) 2010-11-24 2010-11-24 Magnetic shield for current transformer in electronic watt-hour meter
US12/953,713 2010-11-24

Publications (2)

Publication Number Publication Date
JP2012112947A true JP2012112947A (ja) 2012-06-14
JP2012112947A5 JP2012112947A5 (enExample) 2014-12-25

Family

ID=45062954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011252144A Pending JP2012112947A (ja) 2010-11-24 2011-11-18 電子電力量計の変流器の磁気シールド

Country Status (5)

Country Link
US (1) US8664935B2 (enExample)
EP (1) EP2458599B1 (enExample)
JP (1) JP2012112947A (enExample)
CN (1) CN102479609B (enExample)
ES (1) ES2496416T3 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019505090A (ja) * 2015-12-11 2019-02-21 アモグリーンテック カンパニー リミテッド 磁気遮蔽型変流器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2522068B (en) * 2014-01-14 2016-10-19 Thales Holdings Uk Plc Electric field screening
EP2996121A1 (en) 2014-09-09 2016-03-16 Core Elektronik Ticaret ve Sanayi Ltd. Sti. Improved current transformer shield for an electronic watt-hour meter
JP6132043B1 (ja) 2016-02-23 2017-05-24 オムロン株式会社 電力開閉装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125034U (enExample) * 1974-03-28 1975-10-14
JPS5946558A (ja) * 1982-04-05 1984-03-15 ハネウエル・インコ−ポレ−テツド 電力計
JPH03134140A (ja) * 1989-10-19 1991-06-07 Sumitomo Metal Ind Ltd 磁気シールド用電磁鋼板およびその製造方法
US5079462A (en) * 1990-02-27 1992-01-07 Sundstrand Corporation Brushless electrical power generator with reduced harmonics
JPH1022149A (ja) * 1996-06-28 1998-01-23 Tokin Corp 零相変流器
US5828282A (en) * 1996-12-13 1998-10-27 General Electric Company Apparatus and method for shielding a toroidal current sensor
JP2009085620A (ja) * 2007-09-27 2009-04-23 Panasonic Electric Works Co Ltd 電流センサ
WO2009139521A1 (en) * 2008-05-13 2009-11-19 Taehwatrans Co., Ltd. Clamp type current sensor with rogowski coil

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
GB542861A (en) 1940-12-02 1942-01-29 Ferranti Ltd Improvements in or relating to electrical highly-inductive apparatus such as power transformers and chokes
GB846362A (en) 1958-05-24 1960-08-31 Cornigliano Societa Per Azioni Improvements in or relating to thin ferro-magnetic sheet of low coercive force and high permeability
US3366907A (en) 1965-10-22 1968-01-30 Westinghouse Electric Corp Core-form transformer pressure ring wound from magnetic material
DE2348397B2 (de) 1973-09-24 1979-01-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Induktiver Spannungswandler
US4295112A (en) 1978-08-30 1981-10-13 Mitsubishi Denki Kabushiki Kaisha Residual current transformer
US4760333A (en) 1984-12-13 1988-07-26 Kanto Seiki Co., Ltd. Crossed coil meter having concentrically wound magnetic shield
US4646045A (en) 1985-03-25 1987-02-24 General Electric Company Aperture sized disc shaped end caps of a ferromagnetic shield for magnetic resonance magnets
FR2687477B1 (fr) 1992-02-14 1996-06-07 Abb Petercem Capteur de courant.
JPH06302451A (ja) 1993-04-15 1994-10-28 Seiko Epson Corp 希土類永久磁石の製造方法
US5853300A (en) * 1994-03-22 1998-12-29 Ekstrom Industries, Inc. Watthour socket adapter with improved electrical connections
US5486755A (en) 1994-12-27 1996-01-23 General Electric Company Electronic meter having anti-tampering magnetic shield
US5926014A (en) 1997-03-17 1999-07-20 General Electric Company Magnetic shield for plastic molded electricity meter frames
DE10003638A1 (de) * 2000-01-28 2001-08-09 Vacuumschmelze Gmbh Kompensationsstromsensor
US6605937B2 (en) 2001-06-01 2003-08-12 General Electric Company Modular meter with base barrier
US7267729B2 (en) 2003-12-18 2007-09-11 Kobe Steel, Ltd. Soft magnetic low-carbon steel excellent in machinability and magnetic characteristic, method of manufacturing the same and method of manufacturing soft magnetic low-carbon part
DE202004000642U1 (de) 2004-01-16 2004-03-18 Vogt Electronic Aktiengesellschaft Abgeschirmte Induktivität
US7265532B2 (en) 2004-06-02 2007-09-04 General Electric Company Electronic electricity meter and method of assembly
JP5069978B2 (ja) * 2007-08-31 2012-11-07 株式会社ダイヘン 電流・電圧検出用プリント基板および電流・電圧検出器
JP5332374B2 (ja) * 2008-07-25 2013-11-06 サンケン電気株式会社 半導体装置
US8401469B2 (en) 2008-09-26 2013-03-19 Hewlett-Packard Development Company, L.P. Shield for use with a computing device that receives an inductive signal transmission
CN201497772U (zh) * 2009-05-31 2010-06-02 潘兴华 用于仪表计量的*型电流传感器结构

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125034U (enExample) * 1974-03-28 1975-10-14
JPS5946558A (ja) * 1982-04-05 1984-03-15 ハネウエル・インコ−ポレ−テツド 電力計
US4504787A (en) * 1982-04-05 1985-03-12 Honeywell Inc. Electronic watthour meter
JPH03134140A (ja) * 1989-10-19 1991-06-07 Sumitomo Metal Ind Ltd 磁気シールド用電磁鋼板およびその製造方法
US5079462A (en) * 1990-02-27 1992-01-07 Sundstrand Corporation Brushless electrical power generator with reduced harmonics
JPH1022149A (ja) * 1996-06-28 1998-01-23 Tokin Corp 零相変流器
US5828282A (en) * 1996-12-13 1998-10-27 General Electric Company Apparatus and method for shielding a toroidal current sensor
JP2009085620A (ja) * 2007-09-27 2009-04-23 Panasonic Electric Works Co Ltd 電流センサ
WO2009139521A1 (en) * 2008-05-13 2009-11-19 Taehwatrans Co., Ltd. Clamp type current sensor with rogowski coil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019505090A (ja) * 2015-12-11 2019-02-21 アモグリーンテック カンパニー リミテッド 磁気遮蔽型変流器
US10600563B2 (en) 2015-12-11 2020-03-24 Amogreentech Co., Ltd. Magnetic-shield-type converter
JP2020191466A (ja) * 2015-12-11 2020-11-26 アモグリーンテック カンパニー リミテッド 磁気遮蔽型変流器
JP7090928B2 (ja) 2015-12-11 2022-06-27 アモグリーンテック カンパニー リミテッド 磁気遮蔽型変流器

Also Published As

Publication number Publication date
EP2458599A1 (en) 2012-05-30
EP2458599B1 (en) 2014-07-23
CN102479609A (zh) 2012-05-30
ES2496416T3 (es) 2014-09-19
US20120126787A1 (en) 2012-05-24
CN102479609B (zh) 2016-12-07
US8664935B2 (en) 2014-03-04

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