JP2021530683A - カレントトランス - Google Patents

カレントトランス Download PDF

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Publication number
JP2021530683A
JP2021530683A JP2021500149A JP2021500149A JP2021530683A JP 2021530683 A JP2021530683 A JP 2021530683A JP 2021500149 A JP2021500149 A JP 2021500149A JP 2021500149 A JP2021500149 A JP 2021500149A JP 2021530683 A JP2021530683 A JP 2021530683A
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JP
Japan
Prior art keywords
core members
group
interface
transassembly
core
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Pending
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JP2021500149A
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English (en)
Japanese (ja)
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JP2021530683A5 (https=
JPWO2020007239A5 (https=
Inventor
ショウナン ルオ，
ファン リー，
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Fluke Corp
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Fluke Corp
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Publication of JP2021530683A publication Critical patent/JP2021530683A/ja
Publication of JP2021530683A5 publication Critical patent/JP2021530683A5/ja
Publication of JPWO2020007239A5 publication Critical patent/JPWO2020007239A5/ja
Pending legal-status Critical Current

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
    • 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
    • H01F27/02—Casings
    • 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
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • 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
    • 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
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
    • 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
    • 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
    • H01F38/34—Combined voltage and current transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/186—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using current transformers with a core consisting of two or more parts, e.g. clamp-on type
    • 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
    • H01F2038/305—Constructions with toroidal magnetic core
    • 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
    • H01F38/32—Circuit arrangements
    • 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
    • H01F38/40—Instruments transformers for DC

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP2021500149A 2018-07-02 2019-06-28 カレントトランス Pending JP2021530683A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201810707751.5 2018-07-02
CN201810707751.5A CN110676038A (zh) 2018-07-02 2018-07-02 电流互感器
PCT/CN2019/093544 WO2020007239A1 (zh) 2018-07-02 2019-06-28 电流互感器

Publications (3)

Publication Number Publication Date
JP2021530683A true JP2021530683A (ja) 2021-11-11
JP2021530683A5 JP2021530683A5 (https=) 2022-06-30
JPWO2020007239A5 JPWO2020007239A5 (https=) 2022-06-30

Family

ID=69059198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021500149A Pending JP2021530683A (ja) 2018-07-02 2019-06-28 カレントトランス

Country Status (6)

Country Link
US (1) US20210265110A1 (https=)
EP (1) EP3819923B1 (https=)
JP (1) JP2021530683A (https=)
KR (1) KR20210025591A (https=)
CN (1) CN110676038A (https=)
WO (1) WO2020007239A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024070257A1 (ja) * 2022-09-29 2024-04-04 日置電機株式会社 クランプセンサおよび測定装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111489884A (zh) * 2020-05-30 2020-08-04 山西省机电设计研究院 带绕铁芯填充式一次穿心电流互感器及其制作方法
JP7305031B2 (ja) * 2020-10-26 2023-07-07 株式会社トーキン 電流センサ
CN112309693A (zh) * 2020-11-05 2021-02-02 珠海菲森电力科技有限公司 一种宽线性高精度开合结构零序电流互感器
CN119324115B (zh) * 2024-10-31 2025-09-30 大连北方互感器集团有限公司 开合式电流互感器上下两部分装模独立定位的工艺
CN119274932A (zh) * 2024-12-09 2025-01-07 浦江欧科磁业科技有限公司 一种可降低损耗的铁氧体磁芯
CN120376301B (zh) * 2025-04-27 2025-10-03 连云港腾之跃电力科技有限公司 一种开合式电流互感器

Citations (15)

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Publication number Priority date Publication date Assignee Title
JPS5396428A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Transformer for earthing resistance measuring device
CN85100829A (zh) * 1985-04-01 1987-01-17 华中工学院 多通道开口式直流大电流比较仪
JPS643568A (en) * 1987-06-26 1989-01-09 Fujitsu Ltd Current detector
US4912396A (en) * 1987-10-15 1990-03-27 Holec Systemen En Componenten B. V. Circuit for the detection of an asymmetry in the magnetization current of a magnetic modulator
JPH02115176U (https=) * 1989-03-01 1990-09-14
JPH10332745A (ja) * 1997-05-29 1998-12-18 Sumitomo Special Metals Co Ltd 電流センサー
US6114847A (en) * 1995-10-04 2000-09-05 Johnson; Darrell Connectionless signal detection device for conductive cables
JP2002098714A (ja) * 2000-09-25 2002-04-05 Togami Electric Mfg Co Ltd クランプ形分割トランス
US20060152182A1 (en) * 2005-01-07 2006-07-13 Danfysik A/S Detector circuit to be used for measuring current
CN102401853A (zh) * 2011-11-28 2012-04-04 河北工业大学 双轴磁通门电流传感器
CN102496446A (zh) * 2011-11-29 2012-06-13 中国西电电气股份有限公司 零磁通直流电流互感器
WO2013088766A1 (ja) * 2011-12-13 2013-06-20 日本航空電子工業株式会社 電流センサ
WO2015166585A1 (ja) * 2014-05-02 2015-11-05 ヒラヰ電計機株式會社 分割貫通型変流器
JP2015533424A (ja) * 2012-10-31 2015-11-24 リ，サンチョル フラックスゲート方式の非接触電流計測器
JP2018064067A (ja) * 2016-10-14 2018-04-19 横河電機株式会社 励磁コア、センサヘッド及び電流センサ

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US3449703A (en) * 1968-03-20 1969-06-10 Gen Electric Current transformer having an accuracy unimpaired by stray flux from adjacent conductors
US4048605A (en) * 1976-04-05 1977-09-13 Sangamo Electric Company Split core current transformer having an interleaved joint and hinge structure
JPH07120593B2 (ja) * 1987-02-12 1995-12-20 サンケン電気株式会社 直流変流器
JPH06258347A (ja) * 1993-03-03 1994-09-16 Sankooshiya:Kk 計器用電流変成器
FR2707037A1 (en) * 1993-06-23 1994-12-30 Bardin Ets Method of fabricating a torus for measuring electric current and torus obtained
US6756776B2 (en) * 2002-05-28 2004-06-29 Amperion, Inc. Method and device for installing and removing a current transformer on and from a current-carrying power line
JP2004325302A (ja) * 2003-04-25 2004-11-18 Chubu Electric Power Co Inc 広範囲まで測定可能な活線絶縁診断装置および方法
US7193428B1 (en) * 2006-01-19 2007-03-20 Veris Industries, Llc Low threshold current switch
JP2009058428A (ja) * 2007-08-31 2009-03-19 Toyo Networks & System Integration Co Ltd 絶縁監視装置
CN201336216Y (zh) * 2008-12-24 2009-10-28 北京瑞奇恩电器设备有限公司 一种双铁芯双绕组开启式电流互感器
CN201503765U (zh) * 2009-09-11 2010-06-09 何排枝 穿心式低压电流互感器
JP5797101B2 (ja) * 2011-09-09 2015-10-21 日置電機株式会社 磁気センサおよび電流測定装置
JP2013217914A (ja) * 2012-03-12 2013-10-24 Ferrotec Corp 電流センサ、センサ素子および制御装置
EP2741090B1 (en) * 2012-12-07 2015-07-29 LEM Intellectual Property SA Electrical current transducer with wound magnetic core
RU2548911C2 (ru) * 2013-04-29 2015-04-20 Вячеслав Васильевич Самокиш Трансформатор для измерения тока без разрыва цепи (варианты)
CN204155745U (zh) * 2014-08-13 2015-02-11 蔡婷婷 一种开合式电流互感器

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396428A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Transformer for earthing resistance measuring device
CN85100829A (zh) * 1985-04-01 1987-01-17 华中工学院 多通道开口式直流大电流比较仪
JPS643568A (en) * 1987-06-26 1989-01-09 Fujitsu Ltd Current detector
US4912396A (en) * 1987-10-15 1990-03-27 Holec Systemen En Componenten B. V. Circuit for the detection of an asymmetry in the magnetization current of a magnetic modulator
JPH02115176U (https=) * 1989-03-01 1990-09-14
US6114847A (en) * 1995-10-04 2000-09-05 Johnson; Darrell Connectionless signal detection device for conductive cables
JPH10332745A (ja) * 1997-05-29 1998-12-18 Sumitomo Special Metals Co Ltd 電流センサー
JP2002098714A (ja) * 2000-09-25 2002-04-05 Togami Electric Mfg Co Ltd クランプ形分割トランス
US20060152182A1 (en) * 2005-01-07 2006-07-13 Danfysik A/S Detector circuit to be used for measuring current
CN102401853A (zh) * 2011-11-28 2012-04-04 河北工业大学 双轴磁通门电流传感器
CN102496446A (zh) * 2011-11-29 2012-06-13 中国西电电气股份有限公司 零磁通直流电流互感器
WO2013088766A1 (ja) * 2011-12-13 2013-06-20 日本航空電子工業株式会社 電流センサ
JP2015533424A (ja) * 2012-10-31 2015-11-24 リ，サンチョル フラックスゲート方式の非接触電流計測器
WO2015166585A1 (ja) * 2014-05-02 2015-11-05 ヒラヰ電計機株式會社 分割貫通型変流器
JP2018064067A (ja) * 2016-10-14 2018-04-19 横河電機株式会社 励磁コア、センサヘッド及び電流センサ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024070257A1 (ja) * 2022-09-29 2024-04-04 日置電機株式会社 クランプセンサおよび測定装置

Also Published As

Publication number Publication date
KR20210025591A (ko) 2021-03-09
EP3819923A4 (en) 2022-04-06
EP3819923B1 (en) 2025-01-01
WO2020007239A1 (zh) 2020-01-09
CN110676038A (zh) 2020-01-10
EP3819923A1 (en) 2021-05-12
US20210265110A1 (en) 2021-08-26

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