CH593493A5 - - Google Patents

Info

Publication number
CH593493A5
CH593493A5 CH1638875A CH1638875A CH593493A5 CH 593493 A5 CH593493 A5 CH 593493A5 CH 1638875 A CH1638875 A CH 1638875A CH 1638875 A CH1638875 A CH 1638875A CH 593493 A5 CH593493 A5 CH 593493A5
Authority
CH
Switzerland
Application number
CH1638875A
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1638875A priority Critical patent/CH593493A5/xx
Priority to DE19762601252 priority patent/DE2601252A1/en
Publication of CH593493A5 publication Critical patent/CH593493A5/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
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/20—AC or DC potentiometric measuring arrangements
    • G01R17/22—AC or DC potentiometric measuring arrangements with indication of measured value by calibrated null indicator
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
CH1638875A 1975-12-17 1975-12-17 CH593493A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1638875A CH593493A5 (en) 1975-12-17 1975-12-17
DE19762601252 DE2601252A1 (en) 1975-12-17 1976-01-15 DC current measurement without conducting connection - has current flowing through winding on ferromagnetic core with second winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1638875A CH593493A5 (en) 1975-12-17 1975-12-17

Publications (1)

Publication Number Publication Date
CH593493A5 true CH593493A5 (en) 1977-12-15

Family

ID=4416931

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1638875A CH593493A5 (en) 1975-12-17 1975-12-17

Country Status (2)

Country Link
CH (1) CH593493A5 (en)
DE (1) DE2601252A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039679A1 (en) * 1980-09-26 1982-04-08 LGZ Landis & Gyr Zug AG, 6301 Zug MEASURING CONVERTER FOR POTENTIAL-FREE MEASUREMENT OF A CURRENT
WO1984002581A1 (en) * 1982-12-21 1984-07-05 Ericsson Telefon Ab L M Method of measuring a dc curent or a low-frequency ac current
DE29714612U1 (en) * 1996-08-19 1997-10-23 Siemens AG, 80333 München Current measuring device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827601C2 (en) * 1978-06-23 1980-06-12 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth Method for contactless measurement of direct and alternating currents
DE3040316C2 (en) * 1980-10-25 1983-11-10 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Method and device for contactless measurement of direct and alternating currents, in particular of instantaneous current values
DE3130277A1 (en) * 1981-07-31 1983-02-17 Vacuumschmelze Gmbh, 6450 Hanau MAGNETIC CORE MADE OF SOFT MAGNETIC MATERIAL FOR A CURRENT SENSOR WITH A MAGNETIC-DEPENDENT SEMICONDUCTOR ELEMENT FOR DETECTING DC AND AC CURRENTS
DE3705450A1 (en) * 1987-02-20 1988-09-01 Vacuumschmelze Gmbh Current transformer for measuring rectangular waveform currents using the compensation principle
DE3905060A1 (en) * 1989-02-18 1990-08-23 Diehl Gmbh & Co DEVICE FOR CONTACTLESS MEASURING OF A DC
DE4021832A1 (en) * 1990-07-09 1992-01-16 Peter Dipl Ing Westerfeld Compensating current converter in magnetic bridge circuit - has compensating coil that receives output of magnetic field sensor
DE9113081U1 (en) * 1991-10-21 1991-12-12 Siemens AG, 8000 München Current sensor with integrated Hall circuit
DE4230939C2 (en) * 1992-09-16 1995-04-06 Heidelberger Druckmasch Ag Circuit arrangement for changing or testing electrical properties of a current transformer with magnetic field compensation
DE19537354B4 (en) * 1995-10-06 2004-03-18 Siemens Ag Method and device for determining a current value of a digitally regulated power unit
DE19642472A1 (en) * 1996-10-15 1998-04-16 Abb Research Ltd Current sensor based on compensation principle
DE19845778B4 (en) * 1998-09-22 2004-04-29 Siemens Ag Process for mapping direct currents and direct current converter for carrying out the process
DE10145415A1 (en) 2001-09-14 2003-04-03 Aloys Wobben Instrument transformer, in particular for an inverter of a wind energy plant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039679A1 (en) * 1980-09-26 1982-04-08 LGZ Landis & Gyr Zug AG, 6301 Zug MEASURING CONVERTER FOR POTENTIAL-FREE MEASUREMENT OF A CURRENT
WO1984002581A1 (en) * 1982-12-21 1984-07-05 Ericsson Telefon Ab L M Method of measuring a dc curent or a low-frequency ac current
DE29714612U1 (en) * 1996-08-19 1997-10-23 Siemens AG, 80333 München Current measuring device

Also Published As

Publication number Publication date
DE2601252A1 (en) 1977-06-30

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased