JPS5593073A - Partial discharge measuring method - Google Patents
Partial discharge measuring methodInfo
- Publication number
- JPS5593073A JPS5593073A JP109779A JP109779A JPS5593073A JP S5593073 A JPS5593073 A JP S5593073A JP 109779 A JP109779 A JP 109779A JP 109779 A JP109779 A JP 109779A JP S5593073 A JPS5593073 A JP S5593073A
- Authority
- JP
- Japan
- Prior art keywords
- partial discharge
- transformer
- input
- circuit
- cable
- 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.)
- Granted
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
PURPOSE: To detect inside partial discharge with a transformer, etc., connected to an air transmission line by fixing a delay time so that an input from a detection terminal part of a transmission-line side after passing through a delay circuit will be in phase with that from a transformer-side detection terminal part.
CONSTITUTION: A 1st input such as a corona signal, etc., of a transmission line is supplied from the capacitor terminal of air bushing 6 to differential amplifier 13 by way of coaxial cable 10 and delay circuit 11, and a 2nd input is 1ed from the capacitor tap of gas-oil bushing 4 to amplifier 13 via coaxial cable 12. In this case, two inputs to amplifier 13 are put in phase by circuit 11. On the other hand, inside partial discharge pulses generated by the transformer are applied to cable 12 and also to cable 10 and circuit 11 via gas insulating airtight switch 5. Therefore, two pulses are outputted without being canceled and then displayed by display unit 14.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP109779A JPS5593073A (en) | 1979-01-08 | 1979-01-08 | Partial discharge measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP109779A JPS5593073A (en) | 1979-01-08 | 1979-01-08 | Partial discharge measuring method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593073A true JPS5593073A (en) | 1980-07-15 |
JPS6311630B2 JPS6311630B2 (en) | 1988-03-15 |
Family
ID=11491976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP109779A Granted JPS5593073A (en) | 1979-01-08 | 1979-01-08 | Partial discharge measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593073A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121984U (en) * | 1984-07-16 | 1986-02-08 | 株式会社明電舎 | Internal discharge detection device |
KR100473626B1 (en) * | 2002-10-31 | 2005-03-11 | 한국전기연구원 | Small Partial Discharge Signal Measurement Apparatus |
-
1979
- 1979-01-08 JP JP109779A patent/JPS5593073A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121984U (en) * | 1984-07-16 | 1986-02-08 | 株式会社明電舎 | Internal discharge detection device |
KR100473626B1 (en) * | 2002-10-31 | 2005-03-11 | 한국전기연구원 | Small Partial Discharge Signal Measurement Apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6311630B2 (en) | 1988-03-15 |
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