AU2002223904A1 - Current sensors - Google Patents

Current sensors

Info

Publication number
AU2002223904A1
AU2002223904A1 AU2002223904A AU2390402A AU2002223904A1 AU 2002223904 A1 AU2002223904 A1 AU 2002223904A1 AU 2002223904 A AU2002223904 A AU 2002223904A AU 2390402 A AU2390402 A AU 2390402A AU 2002223904 A1 AU2002223904 A1 AU 2002223904A1
Authority
AU
Australia
Prior art keywords
current sensors
winding
inner core
shield means
inner shield
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.)
Abandoned
Application number
AU2002223904A
Inventor
Lawrence Anthony Jones
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.)
Lem Heme Ltd
Original Assignee
Lem Heme 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 Lem Heme Ltd filed Critical Lem Heme Ltd
Publication of AU2002223904A1 publication Critical patent/AU2002223904A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
    • 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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/0266—Structural association with a measurement device, e.g. a shunt

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Fluid Pressure (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

A current sensor comprises an outer shielding means ( 4 ), a toroidal inner core and inner shield means ( 1 ). A combined driving and sensing winding ( 3 ) is wound around the inner core. First and second ends of the winding ( 3 ) are connectable to a sensor head. The inner shield means ( 1 ) has a gap ( 1 A) formed in it.
AU2002223904A 2000-12-07 2001-11-28 Current sensors Abandoned AU2002223904A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0029953.7 2000-12-07
GBGB0029953.7A GB0029953D0 (en) 2000-12-07 2000-12-07 Current sensor
PCT/GB2001/005226 WO2002046777A2 (en) 2000-12-07 2001-11-28 Current sensors

Publications (1)

Publication Number Publication Date
AU2002223904A1 true AU2002223904A1 (en) 2002-06-18

Family

ID=9904697

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002223904A Abandoned AU2002223904A1 (en) 2000-12-07 2001-11-28 Current sensors

Country Status (7)

Country Link
US (1) US7298131B2 (en)
EP (1) EP1340092B1 (en)
AT (1) ATE349707T1 (en)
AU (1) AU2002223904A1 (en)
DE (1) DE60125586T2 (en)
GB (1) GB0029953D0 (en)
WO (1) WO2002046777A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003315373A (en) * 2002-04-18 2003-11-06 Toshiba Corp Current detection device and semiconductor device
DE10246261A1 (en) * 2002-10-02 2004-04-22 Eichhoff Gmbh Device for the inductive coupling of electrical signals to a power supply line and processing method for a tape winding
FR2863364B1 (en) 2003-12-08 2006-03-03 Abb Entrelec Sas CURRENT SENSOR WITH REDUCED SENSITIVITY TO MAGNETIC PARASITE FIELDS
ES2233218B1 (en) 2005-02-16 2006-08-01 Distribuidora Industrial De Automatismos Y Teletransmision S.A. (Dimat S.A.) INDUCTIVE COUPLING DEVICE OF A DATA TRANSMISSION EQUIPMENT TO A PHASE OF A POWER LINE, AND CORRESPONDING MANUFACTURING PROCEDURE.
US7777481B2 (en) * 2007-07-02 2010-08-17 Danaher Motion, Llc Linear motion assembly having a self-energizing sensing device and method of detecting moving ferrous elements in a linear motion assembly
US7612553B2 (en) * 2007-07-26 2009-11-03 Honeywell International Inc. Current sensor having sandwiched magnetic permeability layer
GB201106334D0 (en) * 2011-04-14 2011-06-01 Kelvatek Ltd Load monitoring in an electricity supply system
DE102011080041A1 (en) * 2011-07-28 2013-04-11 Vacuumschmelze Gmbh & Co. Kg Flow sensor assembly
JP5943768B2 (en) * 2011-08-25 2016-07-05 三菱電機株式会社 DC current detector
US10031166B2 (en) 2013-09-30 2018-07-24 Lynary Enterprises Inc. Electrical current measuring apparatus and method
US9964601B2 (en) * 2013-10-08 2018-05-08 Asahi Kasei Microdevices Corporation Magnetic sensor
ITMI20131735A1 (en) * 2013-10-17 2015-04-18 Abb Spa ELECTRONIC SIGNAL DEVICE FOR LOW VOLTAGE ELECTRICAL PANELS
DE102013021347A1 (en) * 2013-12-14 2015-06-18 Festo Ag & Co. Kg monitoring device
US9875582B2 (en) 2015-04-22 2018-01-23 Liko Research & Development Ab Motor unit contactless passive operation time counter
GB2546532B (en) * 2016-01-22 2018-03-21 Gmc I Prosys Ltd Measurement device
DE102019119235A1 (en) * 2019-07-16 2021-01-21 Liebherr-Elektronik Gmbh Device for current and voltage measurement of an input signal
CN116626364B (en) * 2023-07-21 2023-12-29 武汉熔熠电气科技有限公司 AC/DC current detection method and application thereof

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086341B (en) * 1958-12-05 1960-08-04 Licentia Gmbh Resting DC current transducer
US3582774A (en) * 1969-03-13 1971-06-01 Ford Motor Co Circuit impedance measuring device employing clamp on magnetic current sensor
US4059798A (en) * 1976-03-08 1977-11-22 F. W. Bell, Inc. Method and apparatus for measuring the current flowing in a workpiece
JPS54102563A (en) * 1978-01-28 1979-08-13 Hokkaido Daigakuchiyou Magnetic modulator designed to differentially output magnetic core noise
DE3130277A1 (en) * 1981-07-31 1983-02-17 Vacuumschmelze Gmbh, 6450 Hanau MAGNETIC CORE MADE OF SOFT MAGNETIC MATERIAL FOR A CURRENT SENSOR WITH A MAGNETIC-DEPENDENT SEMICONDUCTOR ELEMENT FOR DETECTING DC AND AC CURRENTS
DE3308972A1 (en) * 1982-03-22 1983-09-29 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Device for indicating the condition of a fuse
US4799005A (en) * 1983-04-13 1989-01-17 Fernandes Roosevelt A Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules
DE3332540A1 (en) * 1983-09-09 1985-03-28 Felten & Guilleaume Energietechnik GmbH, 5000 Köln High-voltage fuse with a triggering device for a switch
US4661807A (en) * 1984-10-12 1987-04-28 Gould Inc. Electric fuse holder having an integral current sensor
US4914381A (en) * 1987-05-28 1990-04-03 Barrigar & Oyen Direct-coupled fluxgate current sensor
US5057769A (en) * 1989-07-27 1991-10-15 Sensorlink Corporation AC current sensor
US5093657A (en) * 1989-11-29 1992-03-03 Abb Power T&D Company Distribution cutout condition sensor
DK169008B1 (en) * 1990-06-01 1994-07-25 Holec Lk A S Method and screen for shielding a current transformer as well as current transformers with such shielding
JPH06235735A (en) * 1992-04-27 1994-08-23 Kaise Kk Digital clamp tester
US5493211A (en) * 1993-07-15 1996-02-20 Tektronix, Inc. Current probe
GB9400960D0 (en) * 1994-01-19 1994-03-16 Lem Heme Ltd Magnetic sensors
JPH07312823A (en) * 1994-05-16 1995-11-28 Toshiba Fa Syst Eng Kk Dc leak detection and protective device
JP3522840B2 (en) * 1994-06-30 2004-04-26 日置電機株式会社 Current sensor
JPH09127158A (en) * 1995-10-26 1997-05-16 Kansai Electric Power Co Inc:The Direct current sensor
FR2752059B1 (en) * 1996-08-02 1998-10-23 Peugeot DEVICE FOR MEASURING A CURRENT FLOWING IN A CONDUCTOR
US6232775B1 (en) * 1997-12-26 2001-05-15 Alps Electric Co., Ltd Magneto-impedance element, and azimuth sensor, autocanceler and magnetic head using the same
CH692260A5 (en) * 1998-01-28 2002-04-15 Lem Liaisons Electron Mec power supply device provided with a current sensor.
JP3249810B2 (en) * 1999-01-21 2002-01-21 ティーディーケイ株式会社 Current sensor device

Also Published As

Publication number Publication date
EP1340092B1 (en) 2006-12-27
US7298131B2 (en) 2007-11-20
ATE349707T1 (en) 2007-01-15
WO2002046777A3 (en) 2003-01-09
WO2002046777A2 (en) 2002-06-13
US20040095125A1 (en) 2004-05-20
GB0029953D0 (en) 2001-01-24
EP1340092A2 (en) 2003-09-03
DE60125586T2 (en) 2007-07-05
DE60125586D1 (en) 2007-02-08

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