CN110676038A - 电流互感器 - Google Patents

电流互感器 Download PDF

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Publication number
CN110676038A
CN110676038A CN201810707751.5A CN201810707751A CN110676038A CN 110676038 A CN110676038 A CN 110676038A CN 201810707751 A CN201810707751 A CN 201810707751A CN 110676038 A CN110676038 A CN 110676038A
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CN
China
Prior art keywords
transformer
core
assembly
interface
core members
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
CN201810707751.5A
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English (en)
Chinese (zh)
Inventor
罗守南
李芳�
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.)
Fluke Corp
Original Assignee
Fordwe (shanghai) Industrial Instrument Technology Research And Development Co 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 Fordwe (shanghai) Industrial Instrument Technology Research And Development Co Ltd filed Critical Fordwe (shanghai) Industrial Instrument Technology Research And Development Co Ltd
Priority to CN201810707751.5A priority Critical patent/CN110676038A/zh
Priority to JP2021500149A priority patent/JP2021530683A/ja
Priority to KR1020217000391A priority patent/KR20210025591A/ko
Priority to EP19831125.0A priority patent/EP3819923B1/en
Priority to PCT/CN2019/093544 priority patent/WO2020007239A1/zh
Priority to US17/257,482 priority patent/US20210265110A1/en
Publication of CN110676038A publication Critical patent/CN110676038A/zh
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)
CN201810707751.5A 2018-07-02 2018-07-02 电流互感器 Pending CN110676038A (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201810707751.5A CN110676038A (zh) 2018-07-02 2018-07-02 电流互感器
JP2021500149A JP2021530683A (ja) 2018-07-02 2019-06-28 カレントトランス
KR1020217000391A KR20210025591A (ko) 2018-07-02 2019-06-28 전류 트랜스포머
EP19831125.0A EP3819923B1 (en) 2018-07-02 2019-06-28 Current transformer
PCT/CN2019/093544 WO2020007239A1 (zh) 2018-07-02 2019-06-28 电流互感器
US17/257,482 US20210265110A1 (en) 2018-07-02 2019-06-28 Current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810707751.5A CN110676038A (zh) 2018-07-02 2018-07-02 电流互感器

Publications (1)

Publication Number Publication Date
CN110676038A true CN110676038A (zh) 2020-01-10

Family

ID=69059198

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810707751.5A Pending CN110676038A (zh) 2018-07-02 2018-07-02 电流互感器

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 (2)

* 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
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20260104438A1 (en) * 2022-09-29 2026-04-16 Hioki E.E. Corporation Clamp sensor and measuring device
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
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 (7)

* Cited by examiner, † Cited by third party
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JPS643568A (en) * 1987-06-26 1989-01-09 Fujitsu Ltd Current detector
US6114847A (en) * 1995-10-04 2000-09-05 Johnson; Darrell Connectionless signal detection device for conductive cables
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
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
US20130063140A1 (en) * 2011-09-09 2013-03-14 Hioki Denki Kabushiki Kaisha Magnetic sensor and current measuring apparatus
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
US20150331015A1 (en) * 2012-10-31 2015-11-19 HISEN TECH Co., Ltd. Flux-gate type non-contact current measuring device

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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
JPS5949547B2 (ja) * 1977-02-02 1984-12-03 東京電力株式会社 接地抵抗測定装置用変成器
CN1006007B (zh) * 1985-04-01 1989-12-06 华中工学院 多通道开口式直流大电流比较仪
JPH07120593B2 (ja) * 1987-02-12 1995-12-20 サンケン電気株式会社 直流変流器
NL8702471A (nl) * 1987-10-15 1989-05-01 Holec Syst & Componenten Schakeling voor het detecteren van een asymmetrie in de magnetiseringsstroom van een magnetische modulator.
JPH02115176U (https=) * 1989-03-01 1990-09-14
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
JPH10332745A (ja) * 1997-05-29 1998-12-18 Sumitomo Special Metals Co Ltd 電流センサー
JP3755392B2 (ja) * 2000-09-25 2006-03-15 株式会社戸上電機製作所 クランプ形分割トランス
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
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CN201503765U (zh) * 2009-09-11 2010-06-09 何排枝 穿心式低压电流互感器
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Publication number Priority date Publication date Assignee Title
JPS643568A (en) * 1987-06-26 1989-01-09 Fujitsu Ltd Current detector
US6114847A (en) * 1995-10-04 2000-09-05 Johnson; Darrell Connectionless signal detection device for conductive cables
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
US20130063140A1 (en) * 2011-09-09 2013-03-14 Hioki Denki Kabushiki Kaisha Magnetic sensor and current measuring apparatus
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
US20150331015A1 (en) * 2012-10-31 2015-11-19 HISEN TECH Co., Ltd. Flux-gate type non-contact current measuring device
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

Cited By (2)

* 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
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

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
EP3819923A1 (en) 2021-05-12
JP2021530683A (ja) 2021-11-11
US20210265110A1 (en) 2021-08-26

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Effective date of registration: 20200731

Address after: Washington State

Applicant after: Fluke Corp.

Address before: 200335 Shanghai City, Changning District Fuquan Road No. 518 Building 9 Room 101

Applicant before: FORTIVE (SHANGHAI) INDUSTRIAL INSTRUMENTATION TECHNOLOGIES R&D Co.,Ltd.

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Application publication date: 20200110