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WO1998005975A8 - Method and arrangement for optically detecting an electrical variable - Google Patents

Method and arrangement for optically detecting an electrical variable

Info

Publication number
WO1998005975A8
WO1998005975A8 PCT/DE1997/001480 DE9701480W WO9805975A8 WO 1998005975 A8 WO1998005975 A8 WO 1998005975A8 DE 9701480 W DE9701480 W DE 9701480W WO 9805975 A8 WO9805975 A8 WO 9805975A8
Authority
WO
WIPO (PCT)
Prior art keywords
electrical variable
optically detecting
arrangement
optical
measuring signal
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.)
Ceased
Application number
PCT/DE1997/001480
Other languages
German (de)
French (fr)
Other versions
WO1998005975A1 (en
Inventor
Ottmar Beierl
Thomas Bosselmann
Michael Willsch
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to CA002261901A priority Critical patent/CA2261901A1/en
Priority to EP97934422A priority patent/EP0916095A1/en
Publication of WO1998005975A1 publication Critical patent/WO1998005975A1/en
Anticipated expiration legal-status Critical
Publication of WO1998005975A8 publication Critical patent/WO1998005975A8/en
Ceased legal-status Critical Current

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
    • G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
    • G01R15/247—Details of the circuitry or construction of devices covered by G01R15/241 - G01R15/246

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The invention concerns a method of optically detecting an electrical variable (I), periodic dependency being established between the optical measuring signal and the electrical variable (I) to be measured. According to the invention, two optical, periodically dependent measuring signals are used to obtain an unequivocal measuring signal. The resultant measured values are used as a value pair for unequivocally allocating an absolute value of the electrical variable (I).
PCT/DE1997/001480 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable Ceased WO1998005975A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002261901A CA2261901A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable
EP97934422A EP0916095A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631138.1 1996-08-01
DE19631138 1996-08-01

Publications (2)

Publication Number Publication Date
WO1998005975A1 WO1998005975A1 (en) 1998-02-12
WO1998005975A8 true WO1998005975A8 (en) 1999-05-27

Family

ID=7801529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001480 Ceased WO1998005975A1 (en) 1996-08-01 1997-07-14 Method and arrangement for optically detecting an electrical variable

Country Status (4)

Country Link
EP (1) EP0916095A1 (en)
CN (1) CN1230257A (en)
CA (1) CA2261901A1 (en)
WO (1) WO1998005975A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145020B1 (en) * 1998-12-22 2003-03-12 Siemens Aktiengesellschaft Method and arrangement for optically detecting an electric current using light signals that have different wavelengths
DE10039455A1 (en) * 2000-08-12 2002-02-21 Abb Patent Gmbh DC converter
WO2011154029A1 (en) 2010-06-07 2011-12-15 Abb Research Ltd High-voltage sensor with axially overlapping electrodes
CN106062506B (en) 2014-02-21 2021-06-01 Abb电网瑞士股份公司 Interferometric sensor
EP3108212B1 (en) 2014-02-21 2017-12-13 ABB Schweiz AG Interferometric sensor
CN111474553B (en) * 2020-06-22 2020-11-27 深圳市汇顶科技股份有限公司 Time-of-flight ranging method and device
DE102022210973B4 (en) * 2022-10-18 2025-04-03 Hsp Hochspannungsgeräte Gmbh Measuring an electric current

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141325A1 (en) * 1981-10-17 1983-04-28 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Method for measuring the current on an electric conductor by means of the Faraday effect
EP0776477B1 (en) * 1994-08-23 1998-05-20 Siemens Aktiengesellschaft Method and device for the measurement of electric currents in at least two measurement ranges

Also Published As

Publication number Publication date
EP0916095A1 (en) 1999-05-19
CA2261901A1 (en) 1998-02-12
CN1230257A (en) 1999-09-29
WO1998005975A1 (en) 1998-02-12

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