JPH0226747B2 - - Google Patents

Info

Publication number
JPH0226747B2
JPH0226747B2 JP56120740A JP12074081A JPH0226747B2 JP H0226747 B2 JPH0226747 B2 JP H0226747B2 JP 56120740 A JP56120740 A JP 56120740A JP 12074081 A JP12074081 A JP 12074081A JP H0226747 B2 JPH0226747 B2 JP H0226747B2
Authority
JP
Japan
Prior art keywords
current
iron core
residual current
excitation
residual
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.)
Expired - Lifetime
Application number
JP56120740A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5822970A (ja
Inventor
Fumio Iwasaki
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.)
Midori Anzen Co Ltd
Original Assignee
Midori Anzen 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 Midori Anzen Co Ltd filed Critical Midori Anzen Co Ltd
Priority to JP56120740A priority Critical patent/JPS5822970A/ja
Publication of JPS5822970A publication Critical patent/JPS5822970A/ja
Publication of JPH0226747B2 publication Critical patent/JPH0226747B2/ja
Granted 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
    • G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP56120740A 1981-08-03 1981-08-03 ３ｃｔ方式による高感度零相電流検出法 Granted JPS5822970A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56120740A JPS5822970A (ja) 1981-08-03 1981-08-03 ３ｃｔ方式による高感度零相電流検出法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56120740A JPS5822970A (ja) 1981-08-03 1981-08-03 ３ｃｔ方式による高感度零相電流検出法

Publications (2)

Publication Number Publication Date
JPS5822970A JPS5822970A (ja) 1983-02-10
JPH0226747B2 true JPH0226747B2 (OSRAM) 1990-06-12

Family

ID=14793805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56120740A Granted JPS5822970A (ja) 1981-08-03 1981-08-03 ３ｃｔ方式による高感度零相電流検出法

Country Status (1)

Country Link
JP (1) JPS5822970A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008124512A (ja) * 2003-06-10 2008-05-29 Ngk Insulators Ltd 零相変流器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63311177A (ja) * 1987-06-13 1988-12-19 Sumitomo Electric Ind Ltd 光式磁界センサによる零相電流検出方法
JP2562774Y2 (ja) * 1989-09-26 1998-02-16 松下電工株式会社 インバータ装置
JP6571290B2 (ja) * 2016-09-20 2019-09-04 株式会社東芝 三相貫通形変流器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008124512A (ja) * 2003-06-10 2008-05-29 Ngk Insulators Ltd 零相変流器

Also Published As

Publication number Publication date
JPS5822970A (ja) 1983-02-10

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