JPS5737269A - Measuring device for electric current - Google Patents

Measuring device for electric current

Info

Publication number
JPS5737269A
JPS5737269A JP11433880A JP11433880A JPS5737269A JP S5737269 A JPS5737269 A JP S5737269A JP 11433880 A JP11433880 A JP 11433880A JP 11433880 A JP11433880 A JP 11433880A JP S5737269 A JPS5737269 A JP S5737269A
Authority
JP
Japan
Prior art keywords
circuit conductor
current
measured
main circuit
shunt circuit
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.)
Pending
Application number
JP11433880A
Other languages
Japanese (ja)
Inventor
Masachika Yamazaki
Yoshimitsu Onoda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11433880A priority Critical patent/JPS5737269A/en
Priority to DE19813132800 priority patent/DE3132800C2/en
Publication of JPS5737269A publication Critical patent/JPS5737269A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)

Abstract

PURPOSE:To make it possible to measure the current to be measured with high fidelity, by magnetically coupling a main circuit conductor and a shunt circuit conductor by using a wound core comprising magnetic material so that the polarities of the generated magnetic fields are opposite to each other. CONSTITUTION:A ferrosilicon cut core 8 is inserted into the shunt circuit conductor 5 which is wound in a coil shape in advance. The main circuit conductor 4 is inserted in the cut core 8. The shunt circuit conductor 5 which is coated by an insulating material is wound around the core so that the magnetic polarity which is to be generated is opposite to that in the main circuit conductor. The main circuit conductor 4 and the shunt circuit conductor 5 are magnetically coupled. A current IS which is flowed in the shunt circuit conductor 5 is detected by a current detector 3, and the current in the main circuit, i.e. the current to be measured IT is measured. In this constitution, the current can be measured with high fidelity.
JP11433880A 1980-08-19 1980-08-19 Measuring device for electric current Pending JPS5737269A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11433880A JPS5737269A (en) 1980-08-19 1980-08-19 Measuring device for electric current
DE19813132800 DE3132800C2 (en) 1980-08-19 1981-08-19 Ammeter with magnetic amplification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11433880A JPS5737269A (en) 1980-08-19 1980-08-19 Measuring device for electric current

Publications (1)

Publication Number Publication Date
JPS5737269A true JPS5737269A (en) 1982-03-01

Family

ID=14635277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11433880A Pending JPS5737269A (en) 1980-08-19 1980-08-19 Measuring device for electric current

Country Status (1)

Country Link
JP (1) JPS5737269A (en)

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