JPS57191568A - Partial discharge measuring device - Google Patents
Partial discharge measuring deviceInfo
- 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
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
- G01R31/12—Testing 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
- G01R31/1227—Testing 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06788—Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments
-
- 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
- G01R31/62—Testing 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.
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)
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 |
-
1981
- 1981-05-21 JP JP56075705A patent/JPS57191568A/en active Pending
Cited By (8)
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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