DK200500029A - Detektorkredslöb til brug ved strömmåling - Google Patents

Detektorkredslöb til brug ved strömmåling Download PDF

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Publication number
DK200500029A
DK200500029A DK200500029A DKPA200500029A DK200500029A DK 200500029 A DK200500029 A DK 200500029A DK 200500029 A DK200500029 A DK 200500029A DK PA200500029 A DKPA200500029 A DK PA200500029A DK 200500029 A DK200500029 A DK 200500029A
Authority
DK
Denmark
Prior art keywords
winding
detector circuit
compensation
circuit according
over
Prior art date
Application number
DK200500029A
Other languages
English (en)
Inventor
Petersen Jan Raagaard
Original Assignee
Danfysik As
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 Danfysik As filed Critical Danfysik As
Priority to DK200500029A priority Critical patent/DK200500029A/da
Priority to US11/299,901 priority patent/US7372354B2/en
Priority to EP05388107A priority patent/EP1679519A1/en
Priority to CN2006100089203A priority patent/CN1808133B/zh
Publication of DK200500029A publication Critical patent/DK200500029A/da

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
    • 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
    • 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

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)
  • Measurement Of Current Or Voltage (AREA)

Claims (6)

1. Detektorkredsløb til brug ved strømmåling omfattende en hovedstrømtransformer og to i det væsentlige ens hjælpestrømtransformere, i hvilken hovedstrømtransformer der af en hovedstrøm induceres magnetomotoriske kræfter, der modvirkes af mag-netomotoriske kræfter induceret af en kompensationsstrøm (i4) i en kompensationsvik-ling L4 over de i hvert fald to ringkemer (2, 3) samtidigt med, at de to hjælpestrømtransformere magnetiseres i modfase ved hjælp af et modulationssignal, hvilket kredsløb omfatter en synkron ensretter til at tilvejebringe et reguleringssignal for kompensationsstrømmen (i4), kendetegnet ved, at viklingen L4 for kompensationsstrømmen.(ύ) over de i hvert fald to ringkemer (2, 3) er viklet på en sådan måde, at parasitkapacite-teme reduceres til et minimum.
2. Detektorkredsløb ifølge krav 1, kendetegnet ved, at kompensationsviklingen L4 over de i hvert fald to ringkemer (2, 3) er en såkaldt "pilgrimsvikling'' eller progressiv vikling.
3. Detektorkredsløb ifølge krav 1, kendetegnet ved, at kompensationsviklingen L4 over de i hvert fald to ringkemer (2, 3) er en såkaldt "sektionsvikling".
4. Detektorkredsløb ifølge krav 1, kendetegnet ved, at kompensationsviklingen L4 over de i hvert fald to ringkemer (2,3) er en såkaldt "krydsvikling".
5. Detektorkredsløb ifølge krav 1, omfattende en AC-pick-up-vikling LI, kendetegnet ved, at også AC-pick-up-viklingen LI er viklet på en sådan måde, at parasitka-paciteteme reduceres til et minimum.
6. Detektorkredsløb ifølge krav 5, kendetegnet ved, at AC-pick-up-viklingen LI er en pilgrimsvikling eller en krydsvikling.
DK200500029A 2005-01-07 2005-01-07 Detektorkredslöb til brug ved strömmåling DK200500029A (da)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK200500029A DK200500029A (da) 2005-01-07 2005-01-07 Detektorkredslöb til brug ved strömmåling
US11/299,901 US7372354B2 (en) 2005-01-07 2005-12-13 Detector circuit to be used for measuring current
EP05388107A EP1679519A1 (en) 2005-01-07 2005-12-13 A detector circuit to be used for measuring current
CN2006100089203A CN1808133B (zh) 2005-01-07 2006-01-06 用于测量电流的检测电路

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200500029A DK200500029A (da) 2005-01-07 2005-01-07 Detektorkredslöb til brug ved strömmåling
DK200500029 2005-01-07

Publications (1)

Publication Number Publication Date
DK200500029A true DK200500029A (da) 2006-07-08

Family

ID=36218394

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200500029A DK200500029A (da) 2005-01-07 2005-01-07 Detektorkredslöb til brug ved strömmåling

Country Status (4)

Country Link
US (1) US7372354B2 (da)
EP (1) EP1679519A1 (da)
CN (1) CN1808133B (da)
DK (1) DK200500029A (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602005023760D1 (de) * 2004-11-05 2010-11-04 Lem Liaisons Electron Mec Detektorschaltung zur strommessung
CN103308743B (zh) * 2013-05-24 2015-05-06 华中科技大学 直流电流计量装置
CN110676038A (zh) * 2018-07-02 2020-01-10 福迪威（上海）工业仪器技术研发有限公司 电流互感器
CN112986654B (zh) * 2021-02-10 2022-05-03 南方电网科学研究院有限责任公司 一种宽频带交直流的电流测量装置
CN113866477B (zh) * 2021-08-30 2022-07-05 中国人民解放军海军工程大学 四磁芯六线圈磁调制高精度超大孔径电流检测方法及系统
CN117110693A (zh) * 2023-10-25 2023-11-24 南方电网科学研究院有限责任公司 一种自激型磁通门电流传感器、测量方法及电子设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955317A (en) * 1931-11-12 1934-04-17 Westinghouse Electric & Mfg Co Compensated current transformer
US3146417A (en) * 1959-05-25 1964-08-25 Paul A Pearson Transformer
DK149238C (da) * 1983-09-15 1987-01-19 Danfysik As Detektorkredslaeb til brug ved straemmaaling
JPS6317510A (ja) 1986-07-09 1988-01-25 Mitsubishi Electric Corp 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.
US5060299A (en) * 1989-09-29 1991-10-22 Rockwell International Corporation Radio frequency mixer circuit utilizing interface transformers and switching diodes
US5764123A (en) * 1994-06-07 1998-06-09 Pearson Electronics, Inc. Transformer with reduced signal rise time
CA2456123A1 (en) * 2001-07-31 2003-02-13 Herman Allison Electromagnetic interference suppressor
US6771157B2 (en) * 2001-10-19 2004-08-03 Murata Manufacturing Co., Ltd Wire-wound coil
US20030080847A1 (en) * 2001-10-27 2003-05-01 Radzelovage James G. Low voltage, high current power transformer
SE525864C2 (sv) 2003-07-03 2005-05-17 Danaher Motion Stockholm Ab Metod och anordning för strömmätning med strömtranformatorer vid stora strömmar

Also Published As

Publication number Publication date
US7372354B2 (en) 2008-05-13
US20060152182A1 (en) 2006-07-13
CN1808133A (zh) 2006-07-26
EP1679519A1 (en) 2006-07-12
CN1808133B (zh) 2010-06-23

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AHS Application shelved for other reasons than non-payment