JPS5775409A - Electric apparatus insulated with gas - Google Patents

Electric apparatus insulated with gas

Info

Publication number
JPS5775409A
JPS5775409A JP55151746A JP15174680A JPS5775409A JP S5775409 A JPS5775409 A JP S5775409A JP 55151746 A JP55151746 A JP 55151746A JP 15174680 A JP15174680 A JP 15174680A JP S5775409 A JPS5775409 A JP S5775409A
Authority
JP
Japan
Prior art keywords
capacitors
influence
circumference
potential
electric potential
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
JP55151746A
Other languages
Japanese (ja)
Inventor
Koichiro Nakanishi
Giichi Shibuya
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55151746A priority Critical patent/JPS5775409A/en
Publication of JPS5775409A publication Critical patent/JPS5775409A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

PURPOSE:To enable to measure accurately fluctuation of electric potential of an electric apparatus insulated with gas extending over the high-frequency region from the outside without receiving influence of noise by a method wherein capacitors for division of potential are provided in the insulated apparatus so as to equalize influence from the circumference. CONSTITUTION:The capacitors 12 are arranged equally on the circumference of a metal plate 6 to equalize influence from the circumference and to reduce influence of mutual inductance between respective capacitors. Electric potential of a charging part conductor 3 has the value obtained by dividing potential with the ratio between electrostatic capacitance to be decided by spatial arrangement of the conductor 3 and the voltage detecting electrode 6, and capacitance of the capacitors 12. Electric potential thereof is introduced to coaxial cables 20a, 20b fixed to a flange, and only a signal component being subtracted electromagnetic wave noise through a differential amplifier 21 is led out to a load 10. Accordingly the accurate signal having no attenuation and distortion of a high-frequency signal and containing noise component can be measured.
JP55151746A 1980-10-28 1980-10-28 Electric apparatus insulated with gas Pending JPS5775409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151746A JPS5775409A (en) 1980-10-28 1980-10-28 Electric apparatus insulated with gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151746A JPS5775409A (en) 1980-10-28 1980-10-28 Electric apparatus insulated with gas

Publications (1)

Publication Number Publication Date
JPS5775409A true JPS5775409A (en) 1982-05-12

Family

ID=15525369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151746A Pending JPS5775409A (en) 1980-10-28 1980-10-28 Electric apparatus insulated with gas

Country Status (1)

Country Link
JP (1) JPS5775409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63213228A (en) * 1987-03-02 1988-09-06 株式会社東芝 Signal detector
JPH0686443U (en) * 1993-06-02 1994-12-20 谷口産業株式会社 Root bowl covering material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63213228A (en) * 1987-03-02 1988-09-06 株式会社東芝 Signal detector
JPH0686443U (en) * 1993-06-02 1994-12-20 谷口産業株式会社 Root bowl covering material

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