JPS648823A - Internal abnormal state diagnosing device for sf6-filled electric apparatus - Google Patents
Internal abnormal state diagnosing device for sf6-filled electric apparatusInfo
- Publication number
- JPS648823A JPS648823A JP62160838A JP16083887A JPS648823A JP S648823 A JPS648823 A JP S648823A JP 62160838 A JP62160838 A JP 62160838A JP 16083887 A JP16083887 A JP 16083887A JP S648823 A JPS648823 A JP S648823A
- Authority
- JP
- Japan
- Prior art keywords
- detecting element
- abnormal state
- optical fiber
- signal processing
- processing section
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
PURPOSE:To perform precision remote-monitoring even in a high magnetic field, by feeding current to the input side of an SF6-decomposition detecting element, and by electric-light-converting current change due to resistance change when the SF6 is decomposed because of the internal abnormal state of an electric apparatus, to transmit signal with an optical fiber. CONSTITUTION:In a sealed grounding metal vessel 1, SF6 gas is enclosed, and an SF6-decomposition detecting element 4 is fitted. The other end of a conductor 7a connected to the input side of the detecting element 4 via a sealed insulating terminal 8a is connected to a photoelectric conversion section 10a via an amplifier 9a, and the other end is connected to a signal processing section 12 by an optical fiber 11b. A conductor 7b on the output side of the detecting element 4 is connected in the same manner, to a light-emitting diode 10b via a sealed insulating terminal 8b and an amplifier 9b, and the light from the diode is transmitted to the signal processing section 12 via a glass fiber 11b. The signal processing section 12 transfers signals to and from a remote monitoring controlling board 13 via an optical fiber 11c. The detecting element 4 suffers a change in resistance when the SF6 is decomposed due to an abnormal state. As a result, even in the poor circumstance of a high magnetic field, a high temperature, or the like, the internal abnormal state is exactly detected.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160838A JPS648823A (en) | 1987-06-30 | 1987-06-30 | Internal abnormal state diagnosing device for sf6-filled electric apparatus |
| US07/149,168 US4839767A (en) | 1987-02-02 | 1988-01-27 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
| CA000557745A CA1286361C (en) | 1987-02-02 | 1988-01-29 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
| EP88101413A EP0277623A3 (en) | 1987-02-02 | 1988-02-01 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
| CN88100511.8A CN1009957B (en) | 1987-02-02 | 1988-02-01 | Device for detecting internal anomaly of electric apparatus inflated sulfur hexafluoride |
| KR1019880000882A KR910000084B1 (en) | 1987-04-17 | 1988-02-01 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160838A JPS648823A (en) | 1987-06-30 | 1987-06-30 | Internal abnormal state diagnosing device for sf6-filled electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648823A true JPS648823A (en) | 1989-01-12 |
Family
ID=15723504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62160838A Pending JPS648823A (en) | 1987-02-02 | 1987-06-30 | Internal abnormal state diagnosing device for sf6-filled electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648823A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195048B1 (en) | 1997-12-01 | 2001-02-27 | Kabushiki Kaisha Toshiba | Multifrequency inverted F-type antenna |
| JP2007189385A (en) * | 2006-01-12 | 2007-07-26 | Mitsubishi Materials Corp | Antenna system |
| JP2010515022A (en) * | 2006-12-20 | 2010-05-06 | スリーエム イノベイティブ プロパティズ カンパニー | Detection system |
| JP2011511267A (en) * | 2007-12-20 | 2011-04-07 | スリーエム イノベイティブ プロパティズ カンパニー | Method and system for electrochemical impedance spectroscopy |
| JP4769793B2 (en) * | 2004-04-06 | 2011-09-07 | エヌエックスピー ビー ヴィ | Multi-band compact PIFA antenna with greatly bent slots |
-
1987
- 1987-06-30 JP JP62160838A patent/JPS648823A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195048B1 (en) | 1997-12-01 | 2001-02-27 | Kabushiki Kaisha Toshiba | Multifrequency inverted F-type antenna |
| JP4769793B2 (en) * | 2004-04-06 | 2011-09-07 | エヌエックスピー ビー ヴィ | Multi-band compact PIFA antenna with greatly bent slots |
| JP2007189385A (en) * | 2006-01-12 | 2007-07-26 | Mitsubishi Materials Corp | Antenna system |
| JP2010515022A (en) * | 2006-12-20 | 2010-05-06 | スリーエム イノベイティブ プロパティズ カンパニー | Detection system |
| JP2011511267A (en) * | 2007-12-20 | 2011-04-07 | スリーエム イノベイティブ プロパティズ カンパニー | Method and system for electrochemical impedance spectroscopy |
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