JPS6412807A - Internal abnormality diagnostic element for sf6 gas filled electric device - Google Patents
Internal abnormality diagnostic element for sf6 gas filled electric deviceInfo
- Publication number
- JPS6412807A JPS6412807A JP62165408A JP16540887A JPS6412807A JP S6412807 A JPS6412807 A JP S6412807A JP 62165408 A JP62165408 A JP 62165408A JP 16540887 A JP16540887 A JP 16540887A JP S6412807 A JPS6412807 A JP S6412807A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- thin film
- substrate
- generating
- reacts
- 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
Abstract
PURPOSE:To enable an SF6 gas filled device to be early discovered in its internal abnormality by providing a metal thin film which reacts on cracked SF6 gas of low concentration producing a low conductive fluoride. CONSTITUTION:An internal abnormality detecting element 4A is constituted of a substrate 10 having on its surface many protrusions and hollows of ruggedness from several mum to several tens of mum further being formed by a sintered Al2O3 or the like sintering, for instance, an Al2O3 dust, gold electrode 11 provided in an obverse both side parts of this substrate 10 and a silver thin film 12 provided coating an exposed surface of the substrate 10 and the gold electrode 11. It is most preferable for the silver thin film 12 to form the thickness of 200Angstrom through 400Angstrom . When SF6 gas is dissolved generating inactive cracked gas of SF4 or the like, the cracked gas reacts on water existing in a trace, generating gas of HF or the like. This gas reacts on the silver thin film 12, generating AgF, and the generation of abnormality can be detected by changing a resistance value because a conductive material of silver is denaturalized by a non-conductive material of AgF.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62165408A JPS6412807A (en) | 1987-07-03 | 1987-07-03 | Internal abnormality diagnostic element for sf6 gas filled electric device |
| 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 |
| CN88100511.8A CN1009957B (en) | 1987-02-02 | 1988-02-01 | Device for detecting internal anomaly of electric apparatus inflated sulfur hexafluoride |
| EP88101413A EP0277623A3 (en) | 1987-02-02 | 1988-02-01 | Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
| 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 |
|---|---|---|---|
| JP62165408A JPS6412807A (en) | 1987-07-03 | 1987-07-03 | Internal abnormality diagnostic element for sf6 gas filled electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412807A true JPS6412807A (en) | 1989-01-17 |
Family
ID=15811842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62165408A Pending JPS6412807A (en) | 1987-02-02 | 1987-07-03 | Internal abnormality diagnostic element for sf6 gas filled electric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412807A (en) |
-
1987
- 1987-07-03 JP JP62165408A patent/JPS6412807A/en active Pending
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