WO2009008757A3 - Magneto-optical head with adjustable analyzer for current measurements at medium and high voltage - Google Patents

Magneto-optical head with adjustable analyzer for current measurements at medium and high voltage Download PDF

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Publication number
WO2009008757A3
WO2009008757A3 PCT/RS2008/000023 RS2008000023W WO2009008757A3 WO 2009008757 A3 WO2009008757 A3 WO 2009008757A3 RS 2008000023 W RS2008000023 W RS 2008000023W WO 2009008757 A3 WO2009008757 A3 WO 2009008757A3
Authority
WO
WIPO (PCT)
Prior art keywords
analyzer
magneto
medium
high voltage
current measurements
Prior art date
Application number
PCT/RS2008/000023
Other languages
French (fr)
Other versions
WO2009008757A2 (en
Inventor
Miodrag Hadzic
Original Assignee
Miodrag Hadzic
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 Miodrag Hadzic filed Critical Miodrag Hadzic
Publication of WO2009008757A2 publication Critical patent/WO2009008757A2/en
Publication of WO2009008757A3 publication Critical patent/WO2009008757A3/en

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
    • G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
    • G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect
    • 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

Abstract

Invention belongs to the field of electrical measuring equipment with measurement error compensators, and concretely relates to magneto- optical head with adjustable analyzer for current measurements at medium and high voltage. The invention furthermore relates to the improved structure of the measuring head used for precise current measurements at medium and high voltage on all standard busbars up to 100 x 10 mm. The measuring head concerned comprises of the following: with plastic of high resistance shielded holder (1) of optical cables (2) and housing (6) of the magnetic concentrator, specially shaped magnetic concentrator (7) with double- segmented side (29) and housing (48) of the magneto-optical crystal (44) with subassembly, which comprises a worm gear (64) for change of the angle of the analyzer (68). Adjusting of the analyzer's (68) angle enables selection of the measuring range and separate calibration of each individual head, which eliminates technological imperfection of LEDs used as light generators.
PCT/RS2008/000023 2007-07-06 2008-07-04 Magneto-optical head with adjustable analyzer for current measurements at medium and high voltage WO2009008757A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RSP-2007/0295 2007-07-06
RSP-2007/0295A RS50440B (en) 2007-07-06 2007-07-06 Measuring magnetooptic head with adjustable analyzer from measuring electric current at medium and high voltages

Publications (2)

Publication Number Publication Date
WO2009008757A2 WO2009008757A2 (en) 2009-01-15
WO2009008757A3 true WO2009008757A3 (en) 2009-05-07

Family

ID=40130927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RS2008/000023 WO2009008757A2 (en) 2007-07-06 2008-07-04 Magneto-optical head with adjustable analyzer for current measurements at medium and high voltage

Country Status (2)

Country Link
RS (1) RS50440B (en)
WO (1) WO2009008757A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973492A (en) * 1997-04-16 1999-10-26 Ma; Xianyun High accuracy optical current transducer thta eliminates birefringence
US20020000801A1 (en) * 1996-09-20 2002-01-03 Peter Menke Method to obtain a temperature compensated output signal in an optical current measuring sensor
US6512357B2 (en) * 1998-07-29 2003-01-28 Siemens Aktiengellschaft Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current
US20030133657A1 (en) * 2001-12-11 2003-07-17 Vladimir Kochergin Magneto-optical sensing employing phase-shifted transmission bragg gratings
US20060170410A1 (en) * 2004-11-18 2006-08-03 Nesa A/S Compensation of simple fiber optic faraday effect sensors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020000801A1 (en) * 1996-09-20 2002-01-03 Peter Menke Method to obtain a temperature compensated output signal in an optical current measuring sensor
US5973492A (en) * 1997-04-16 1999-10-26 Ma; Xianyun High accuracy optical current transducer thta eliminates birefringence
US6512357B2 (en) * 1998-07-29 2003-01-28 Siemens Aktiengellschaft Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current
US20030133657A1 (en) * 2001-12-11 2003-07-17 Vladimir Kochergin Magneto-optical sensing employing phase-shifted transmission bragg gratings
US20060170410A1 (en) * 2004-11-18 2006-08-03 Nesa A/S Compensation of simple fiber optic faraday effect sensors

Also Published As

Publication number Publication date
WO2009008757A2 (en) 2009-01-15
RS20070295A (en) 2009-03-25
RS50440B (en) 2009-12-31

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