JPS57191568A - Partial discharge measuring device - Google Patents

Partial discharge measuring device

Info

Publication number
JPS57191568A
JPS57191568A JP56075705A JP7570581A JPS57191568A JP S57191568 A JPS57191568 A JP S57191568A JP 56075705 A JP56075705 A JP 56075705A JP 7570581 A JP7570581 A JP 7570581A JP S57191568 A JPS57191568 A JP S57191568A
Authority
JP
Japan
Prior art keywords
pulses
transformer
partial discharge
low
calibration
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
JP56075705A
Other languages
Japanese (ja)
Inventor
Masami Ikeda
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 JP56075705A priority Critical patent/JPS57191568A/en
Publication of JPS57191568A publication Critical patent/JPS57191568A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/06788Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/62Testing of transformers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE:To make a device small-sized on the whole and to perform partial discharge measurement without stopping the operation of a transformer by generating a calibration pulse from one of two through-type current transformers and connecting a low-pass filter, a high-frequency amplification part, and a display part to the other current transformer. CONSTITUTION:A calibration pulse generation part 23 generates calibration pulses 24, which are applied to a neutral-point line 17 through a current transformer 21. The pulses 24 are detected by a current transformer 22, and a low-pass filter 25 cuts 50 and 60Hz low-frequency components; and a high-frequency amplifica- tion part 26 amplifies about 100Hz partial-discharge pulses, and a display part 27 displays the output of the amplification part. Since the pulses during calibration have known magnitude, the gain of the amplifier 26 is adjusted to adjust the output of the display part 27. Consequently, partial discharge is measured easily without special preparation like stopping a transformer in operation or disconnecting stringing.
JP56075705A 1981-05-21 1981-05-21 Partial discharge measuring device Pending JPS57191568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075705A JPS57191568A (en) 1981-05-21 1981-05-21 Partial discharge measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075705A JPS57191568A (en) 1981-05-21 1981-05-21 Partial discharge measuring device

Publications (1)

Publication Number Publication Date
JPS57191568A true JPS57191568A (en) 1982-11-25

Family

ID=13583895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075705A Pending JPS57191568A (en) 1981-05-21 1981-05-21 Partial discharge measuring device

Country Status (1)

Country Link
JP (1) JPS57191568A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122213U (en) * 1985-01-16 1986-08-01
JPH02167484A (en) * 1988-12-21 1990-06-27 Hitachi Cable Ltd Measuring method for partial discharge
JP2009107343A (en) * 2001-12-20 2009-05-21 Procter & Gamble Co Article and method for applying color on surface
CZ304480B6 (en) * 2013-05-29 2014-05-21 České Vysoké Učení Technické V Praze, Fakulta Elektrotechnická Programmable charge calibrator
CN109490591A (en) * 2015-09-08 2019-03-19 苏州泰思特电子科技有限公司 High stability lightning surge simulator
CN117554767A (en) * 2024-01-10 2024-02-13 华北电力科学研究院有限责任公司 High-frequency discharge signal detection device and method based on power frequency current transformer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122213U (en) * 1985-01-16 1986-08-01
JPH02167484A (en) * 1988-12-21 1990-06-27 Hitachi Cable Ltd Measuring method for partial discharge
JPH067148B2 (en) * 1988-12-21 1994-01-26 日立電線株式会社 Partial discharge measurement method
JP2009107343A (en) * 2001-12-20 2009-05-21 Procter & Gamble Co Article and method for applying color on surface
CZ304480B6 (en) * 2013-05-29 2014-05-21 České Vysoké Učení Technické V Praze, Fakulta Elektrotechnická Programmable charge calibrator
CN109490591A (en) * 2015-09-08 2019-03-19 苏州泰思特电子科技有限公司 High stability lightning surge simulator
CN117554767A (en) * 2024-01-10 2024-02-13 华北电力科学研究院有限责任公司 High-frequency discharge signal detection device and method based on power frequency current transformer
CN117554767B (en) * 2024-01-10 2024-04-05 华北电力科学研究院有限责任公司 High-frequency discharge signal detection device and method based on power frequency current transformer

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