KR20210025591A - 전류 트랜스포머 - Google Patents

전류 트랜스포머 Download PDF

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Publication number
KR20210025591A
KR20210025591A KR1020217000391A KR20217000391A KR20210025591A KR 20210025591 A KR20210025591 A KR 20210025591A KR 1020217000391 A KR1020217000391 A KR 1020217000391A KR 20217000391 A KR20217000391 A KR 20217000391A KR 20210025591 A KR20210025591 A KR 20210025591A
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KR
South Korea
Prior art keywords
core members
group
transformer
interface
assembly
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KR1020217000391A
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English (en)
Korean (ko)
Inventor
쇼우난 루오
팡 리
Original Assignee
플루커 코포레이션
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Publication of KR20210025591A publication Critical patent/KR20210025591A/ko
Withdrawn legal-status Critical Current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)
KR1020217000391A 2018-07-02 2019-06-28 전류 트랜스포머 Withdrawn KR20210025591A (ko)

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 (1)

Publication Number Publication Date
KR20210025591A true KR20210025591A (ko) 2021-03-09

Family

ID=69059198

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020217000391A Withdrawn KR20210025591A (ko) 2018-07-02 2019-06-28 전류 트랜스포머

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=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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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
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
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

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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
JPH0711541B2 (ja) * 1987-06-26 1995-02-08 富士通株式会社 電流検出器
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
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
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
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
DK200500029A (da) * 2005-01-07 2006-07-08 Danfysik As Detektorkredslöb til brug ved strömmåling
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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
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CN102401853B (zh) * 2011-11-28 2013-09-04 河北工业大学 双轴磁通门电流传感器
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KR101329240B1 (ko) * 2012-10-31 2013-11-20 이상철 플럭스 게이트 방식의 비접촉 전류 계측기
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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
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JP6505653B2 (ja) * 2016-10-14 2019-04-24 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

Also Published As

Publication number Publication date
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
JP2021530683A (ja) 2021-11-11
US20210265110A1 (en) 2021-08-26

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Patent event date: 20210106

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Comment text: International Patent Application

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Patent event code: PA02012R01D

Patent event date: 20220623

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Patent event date: 20240221

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