ZA784449B - Current measurement - Google Patents

Current measurement

Info

Publication number
ZA784449B
ZA784449B ZA784449A ZA784449A ZA784449B ZA 784449 B ZA784449 B ZA 784449B ZA 784449 A ZA784449 A ZA 784449A ZA 784449 A ZA784449 A ZA 784449A ZA 784449 B ZA784449 B ZA 784449B
Authority
ZA
South Africa
Prior art keywords
current measurement
measurement
current
Prior art date
Application number
ZA784449A
Inventor
D Carbarns
Original Assignee
Aeci Ltd
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 Aeci Ltd filed Critical Aeci Ltd
Priority to ZA784449A priority Critical patent/ZA784449B/en
Priority to GB7927118A priority patent/GB2029973B/en
Publication of ZA784449B publication Critical patent/ZA784449B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183Adaptations 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
    • G01R15/185Adaptations 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02Arrangements in which the value to be measured is automatically compared with a reference value
    • G01R17/04Arrangements in which the value to be measured is automatically compared with a reference value in which the reference value is continuously or periodically swept over the range of values to be measured
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20Arrangements 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)
ZA784449A 1978-08-04 1978-08-04 Current measurement ZA784449B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ZA784449A ZA784449B (en) 1978-08-04 1978-08-04 Current measurement
GB7927118A GB2029973B (en) 1978-08-04 1979-08-03 Current measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA784449A ZA784449B (en) 1978-08-04 1978-08-04 Current measurement

Publications (1)

Publication Number Publication Date
ZA784449B true ZA784449B (en) 1980-03-26

Family

ID=25573239

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA784449A ZA784449B (en) 1978-08-04 1978-08-04 Current measurement

Country Status (2)

Country Link
GB (1) GB2029973B (en)
ZA (1) ZA784449B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099979B1 (en) * 1982-07-26 1987-04-08 LGZ LANDIS & GYR ZUG AG Magnetic field sensor and the use thereof
CH658546A5 (en) * 1982-08-30 1986-11-14 Landis & Gyr Ag HALL ELEMENT WITH FEED.
CH659896A5 (en) * 1982-11-22 1987-02-27 Landis & Gyr Ag MAGNETIC SENSOR.
GB2225436A (en) * 1988-11-25 1990-05-30 Gen Electric Co Plc Alternating current sensors
DE19845778B4 (en) * 1998-09-22 2004-04-29 Siemens Ag Process for mapping direct currents and direct current converter for carrying out the process

Also Published As

Publication number Publication date
GB2029973A (en) 1980-03-26
GB2029973B (en) 1982-11-03

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