JPS647452B2 - - Google Patents
Info
- Publication number
- JPS647452B2 JPS647452B2 JP6831280A JP6831280A JPS647452B2 JP S647452 B2 JPS647452 B2 JP S647452B2 JP 6831280 A JP6831280 A JP 6831280A JP 6831280 A JP6831280 A JP 6831280A JP S647452 B2 JPS647452 B2 JP S647452B2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- light
- degree
- polarizing plate
- light source
- 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.)
- Expired
Links
- 230000005684 electric field Effects 0.000 claims description 22
- 238000012806 monitoring device Methods 0.000 claims description 22
- 230000010287 polarization Effects 0.000 claims description 18
- 239000013307 optical fiber Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831280A JPS56165234A (en) | 1980-05-22 | 1980-05-22 | Vacuum degree monitor for vacuum switch |
| EP81301178A EP0036760B1 (en) | 1980-03-24 | 1981-03-19 | Vacuum circuit interrupter system |
| DE8181301178T DE3174794D1 (en) | 1980-03-24 | 1981-03-19 | Vacuum circuit interrupter system |
| US06/246,617 US4402224A (en) | 1980-03-24 | 1981-03-23 | Pressure responsive monitoring device for vacuum circuit interrupters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831280A JPS56165234A (en) | 1980-05-22 | 1980-05-22 | Vacuum degree monitor for vacuum switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56165234A JPS56165234A (en) | 1981-12-18 |
| JPS647452B2 true JPS647452B2 (en, 2012) | 1989-02-08 |
Family
ID=13370162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6831280A Granted JPS56165234A (en) | 1980-03-24 | 1980-05-22 | Vacuum degree monitor for vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56165234A (en, 2012) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2500399Y2 (ja) * | 1991-10-29 | 1996-06-05 | 川崎重工業株式会社 | 昇降式サイドスラスタ構造 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022288A (ja) * | 1983-07-19 | 1985-02-04 | 富士通株式会社 | キ−ボ−ドカバ−付投票券自動発売機 |
-
1980
- 1980-05-22 JP JP6831280A patent/JPS56165234A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56165234A (en) | 1981-12-18 |
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