ZA97790B - Apparatus and method for measuring an ac current which saturates the core of a current transformer. - Google Patents

Apparatus and method for measuring an ac current which saturates the core of a current transformer.

Info

Publication number
ZA97790B
ZA97790B ZA9700790A ZA97790A ZA97790B ZA 97790 B ZA97790 B ZA 97790B ZA 9700790 A ZA9700790 A ZA 9700790A ZA 97790 A ZA97790 A ZA 97790A ZA 97790 B ZA97790 B ZA 97790B
Authority
ZA
South Africa
Prior art keywords
current
saturates
core
measuring
current transformer
Prior art date
Application number
ZA9700790A
Other languages
English (en)
Inventor
John Herman Blakely
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of ZA97790B publication Critical patent/ZA97790B/xx

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
ZA9700790A 1996-01-31 1997-01-30 Apparatus and method for measuring an ac current which saturates the core of a current transformer. ZA97790B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/594,977 US5652507A (en) 1996-01-31 1996-01-31 Apparatus and method for measuring an AC current which saturates the core of a current transformer

Publications (1)

Publication Number Publication Date
ZA97790B true ZA97790B (en) 1997-08-04

Family

ID=24381202

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9700790A ZA97790B (en) 1996-01-31 1997-01-30 Apparatus and method for measuring an ac current which saturates the core of a current transformer.

Country Status (9)

Country Link
US (1) US5652507A (fr)
EP (1) EP0788122A3 (fr)
JP (1) JPH09222439A (fr)
KR (1) KR970059744A (fr)
AU (1) AU711221B2 (fr)
BR (1) BR9700166A (fr)
CA (1) CA2192588A1 (fr)
TW (1) TW332256B (fr)
ZA (1) ZA97790B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6040689A (en) * 1997-06-17 2000-03-21 Ssac, Inc. Current sensing method and apparatus
WO2000029858A1 (fr) * 1998-11-13 2000-05-25 Suparules Limited Procede et appareil de detection a distance du courant
US6295190B1 (en) 1999-10-26 2001-09-25 Electric Boat Corporation Circuit breaker arrangement with integrated protection, control and monitoring
US6850083B2 (en) * 2003-02-05 2005-02-01 Intel Corporation Burn in board having a remote current sensor
US7719258B2 (en) 2008-10-13 2010-05-18 National Taiwan University Of Science And Technology Method and apparatus for current measurement using hall sensors without iron cores
CN102324728B (zh) * 2011-07-18 2013-10-23 重庆电力高等专科学校 电流互感器饱和的判别及补偿方法
JP5208257B2 (ja) * 2011-09-27 2013-06-12 三菱電機株式会社 電動過給機の異常検出装置と検出方法
US11775039B2 (en) * 2015-08-20 2023-10-03 Signify Holding, B.V. Power providing device and method
US10750252B2 (en) 2017-02-22 2020-08-18 Sense Labs, Inc. Identifying device state changes using power data and network data
US10763055B2 (en) * 2017-09-01 2020-09-01 Te Connectivity Corporation Pin configurable smart current sensor
US10740691B2 (en) 2018-10-02 2020-08-11 Sense Labs, Inc. Identifying devices connected to a smart plug
US11768228B2 (en) * 2019-07-11 2023-09-26 Sense Labs, Inc. Current transformer with calibration information
CN113964964B (zh) * 2021-11-15 2023-03-21 西安热工研究院有限公司 一种基于电信号的永磁风力发电机永磁体退磁故障模拟装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255704A (en) * 1979-10-01 1981-03-10 General Electric Company Zero crossing detection and electronic compensation of D. C. saturation magnetization in current transformers used in watthour meter installations
DE3274171D1 (en) * 1982-03-29 1986-12-11 Bbc Brown Boveri & Cie Method and device for evaluating the secondary current of a current transformer primary connected to an electric power supply line
SE434781B (sv) * 1982-12-21 1984-08-13 Ericsson Telefon Ab L M Sett att meta en likstrom eller en lagfrekvent vexelstrom
US4980794A (en) * 1987-02-19 1990-12-25 Westinghouse Electric Corp. Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core
US4847554A (en) * 1987-03-04 1989-07-11 Sangamo Weston, Inc. Current measuring and magnetic core compensating apparatus and method
JPH0737998B2 (ja) * 1988-11-16 1995-04-26 三菱電機株式会社 電気量検出器
JPH0510980A (ja) * 1990-11-26 1993-01-19 Fuji Electric Co Ltd 電流検出方法
SE469676B (sv) * 1992-01-03 1993-08-16 Asea Brown Boveri Foerfarande vid rekonstruktion av maettade stroemtransformatorsignaler samt anordning foer genomfoerande av det naemnda foerfarandet
FR2691302B1 (fr) * 1992-05-12 1997-04-04 Merlin Gerin Declencheur electronique comportant un dispositif de correction.
JP3221128B2 (ja) * 1993-02-02 2001-10-22 日新電機株式会社 電流検出装置
FR2719124B1 (fr) * 1994-04-21 1996-06-07 Merlin Gerin Procédé et dispositif de correction d'un signal de courant.

Also Published As

Publication number Publication date
EP0788122A2 (fr) 1997-08-06
AU711221B2 (en) 1999-10-07
BR9700166A (pt) 1998-09-29
CA2192588A1 (fr) 1997-08-01
EP0788122A3 (fr) 1997-11-05
JPH09222439A (ja) 1997-08-26
US5652507A (en) 1997-07-29
AU1002097A (en) 1997-08-07
TW332256B (en) 1998-05-21
KR970059744A (ko) 1997-08-12
MX9700488A (es) 1997-07-31

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