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JPS5793264A - Detector for high-frequency current - Google Patents

Detector for high-frequency current

Info

Publication number
JPS5793264A
JPS5793264A JP55169369A JP16936980A JPS5793264A JP S5793264 A JPS5793264 A JP S5793264A JP 55169369 A JP55169369 A JP 55169369A JP 16936980 A JP16936980 A JP 16936980A JP S5793264 A JPS5793264 A JP S5793264A
Authority
JP
Japan
Prior art keywords
frequency
conductor
magnetic
magnetic field
rodform
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
JP55169369A
Other languages
Japanese (ja)
Inventor
Tamotsu Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55169369A priority Critical patent/JPS5793264A/en
Publication of JPS5793264A publication Critical patent/JPS5793264A/en
Pending 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
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers

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 enable to prevent the production of an error due to a floating magnetic field and of an error due to magnetic saturation of a rodform magnetic core, by a method wherein two high-frequency detecting coils, coiled around a rodform magnetic core, are mounted at both sides of a conductor to be measured. CONSTITUTION:A high-frequency magnetic field, consisting of a high-frequency current component contained in a current flowing in a conductor 1, is generated in a concentric circle centering around the conductor 1. The high-frequency magnetic field generates a high-frequency induction voltage at detecting coils 2a and 2b by a focusing magnetic action of rodform magnetic cores 5a and 5b attached to a fixture stand 4, and induction voltages from the two detecting coils 2a and 2b are produced in a total sum at an output terminal 13. Over a floating magnetic field except a high-frequency current component flowing in the conductor 1 and existing in the proximity of the conductor 1, the induction voltages are not produced at the output terminal 3 resulting from the erasing of each other. This permits the reliable detection of a high-frequency current.
JP55169369A 1980-12-01 1980-12-01 Detector for high-frequency current Pending JPS5793264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55169369A JPS5793264A (en) 1980-12-01 1980-12-01 Detector for high-frequency current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55169369A JPS5793264A (en) 1980-12-01 1980-12-01 Detector for high-frequency current

Publications (1)

Publication Number Publication Date
JPS5793264A true JPS5793264A (en) 1982-06-10

Family

ID=15885302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55169369A Pending JPS5793264A (en) 1980-12-01 1980-12-01 Detector for high-frequency current

Country Status (1)

Country Link
JP (1) JPS5793264A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61197567U (en) * 1985-05-31 1986-12-10
JPS63500961A (en) * 1985-09-14 1988-04-07 エルゲーツエット・ランディス・ウント・ギール・ツーク・アクチエンゲゼルシャフト Current transformation device for static integration electric meter
JPS6385462A (en) * 1986-09-30 1988-04-15 Yokogawa Electric Corp Current measuring instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61197567U (en) * 1985-05-31 1986-12-10
JPS63500961A (en) * 1985-09-14 1988-04-07 エルゲーツエット・ランディス・ウント・ギール・ツーク・アクチエンゲゼルシャフト Current transformation device for static integration electric meter
JPH0476632B2 (en) * 1985-09-14 1992-12-04 Eru Gee Tsuetsuto Randeisu Unto Giiru Tsuuku Ag
JPS6385462A (en) * 1986-09-30 1988-04-15 Yokogawa Electric Corp Current measuring instrument

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