GB9924047D0 - Instrument for measuring alternating current - Google Patents

Instrument for measuring alternating current

Info

Publication number
GB9924047D0
GB9924047D0 GBGB9924047.5A GB9924047A GB9924047D0 GB 9924047 D0 GB9924047 D0 GB 9924047D0 GB 9924047 A GB9924047 A GB 9924047A GB 9924047 D0 GB9924047 D0 GB 9924047D0
Authority
GB
United Kingdom
Prior art keywords
instrument
alternating current
measuring alternating
measuring
current
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.)
Withdrawn
Application number
GBGB9924047.5A
Other versions
GB2339295A (en
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Publication of GB9924047D0 publication Critical patent/GB9924047D0/en
Publication of GB2339295A publication Critical patent/GB2339295A/en
Withdrawn legal-status Critical Current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
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc
    • 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
    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency
GB9924047A 1998-02-12 1999-02-10 Instrument for measuring alternating current Withdrawn GB2339295A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2939998A JPH11230994A (en) 1998-02-12 1998-02-12 Ac current measuring instrument
PCT/JP1999/000565 WO1999041618A1 (en) 1998-02-12 1999-02-10 Instrument for measuring alternating current

Publications (2)

Publication Number Publication Date
GB9924047D0 true GB9924047D0 (en) 1999-12-15
GB2339295A GB2339295A (en) 2000-01-19

Family

ID=12275074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9924047A Withdrawn GB2339295A (en) 1998-02-12 1999-02-10 Instrument for measuring alternating current

Country Status (3)

Country Link
JP (1) JPH11230994A (en)
GB (1) GB2339295A (en)
WO (1) WO1999041618A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929663A (en) * 1997-08-12 1999-07-27 General Electric Company Control circuit for distributed electrical equipment
DE10148815A1 (en) * 2001-10-02 2003-04-10 Abb Patent Gmbh Method and device for current value determination using a current transformer which works in the area of core saturation
EP1884787A1 (en) * 2006-07-10 2008-02-06 S. THIIM ApS A current sensor for measuring electric current in a conductor and a short circuit indicator system comprising such a sensor
CN101615501B (en) * 2008-06-24 2011-09-28 湖北盛佳电器设备有限公司 Voltage and current integral sampling device
JP5355978B2 (en) * 2008-09-26 2013-11-27 株式会社沖データ Flashing circuit
CN101499734A (en) * 2008-10-24 2009-08-05 王国强 Application of rectifying conversion module in AC current meter
CN102830262B (en) * 2012-08-27 2015-04-22 无锡安邦电气有限公司 Alternating current detection circuit based on bidirectional optocoupler
CN103364613A (en) * 2013-07-15 2013-10-23 长城电器集团有限公司 Voltage signal conditioning circuit of automatic reclosing lock breaker in time of electric leakage
CN105092954B (en) * 2015-06-03 2017-12-08 大连市旅顺电力电子设备有限公司 New on-Line Voltage monitoring device and its method for batteries
CN105092933B (en) * 2015-06-03 2017-12-12 大连市旅顺电力电子设备有限公司 Direct transform on-Line Voltage monitoring device and its method for batteries
CN110031734A (en) * 2019-05-10 2019-07-19 华北电力大学（保定） A kind of transformer optical fiber detector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545477U (en) * 1977-06-14 1979-01-13
JPS5629471U (en) * 1979-08-13 1981-03-20
JPS5663264A (en) * 1979-10-29 1981-05-29 Furukawa Electric Co Ltd:The Current detecting method
JPH0642214Y2 (en) * 1987-08-21 1994-11-02 日立電線株式会社 Current measuring device
JPH0528527Y2 (en) * 1987-09-18 1993-07-22
JP2701343B2 (en) * 1988-08-02 1998-01-21 株式会社明電舎 Optical fiber micro-current detector
JP2854352B2 (en) * 1989-12-05 1999-02-03 株式会社サンコーシャ Voltage-pulse converter and voltage measuring device using the same
JPH07280848A (en) * 1994-04-14 1995-10-27 San'eisha Mfg Co Ltd Optical sensor

Also Published As

Publication number Publication date
WO1999041618A1 (en) 1999-08-19
GB2339295A (en) 2000-01-19
JPH11230994A (en) 1999-08-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)