FR922851A - Improvements in protection devices for electrical installations against overvoltages - Google Patents
Improvements in protection devices for electrical installations against overvoltagesInfo
- Publication number
- FR922851A FR922851A FR922851DA FR922851A FR 922851 A FR922851 A FR 922851A FR 922851D A FR922851D A FR 922851DA FR 922851 A FR922851 A FR 922851A
- Authority
- FR
- France
- Prior art keywords
- protection devices
- electrical installations
- against overvoltages
- installations against
- overvoltages
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/24—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for spark-gap arresters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR922851T | 1946-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR922851A true FR922851A (en) | 1947-06-20 |
Family
ID=9438290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR922851D Expired FR922851A (en) | 1946-01-09 | 1946-01-09 | Improvements in protection devices for electrical installations against overvoltages |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR922851A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2455381A1 (en) * | 1979-04-27 | 1980-11-21 | Kraftwerk Union Ag | OVERVOLTAGE PROTECTION DEVICE FOR ELECTRONIC DEVICES |
US4521822A (en) * | 1981-03-03 | 1985-06-04 | Hydro-Quebec | Current transformer protection device |
-
1946
- 1946-01-09 FR FR922851D patent/FR922851A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2455381A1 (en) * | 1979-04-27 | 1980-11-21 | Kraftwerk Union Ag | OVERVOLTAGE PROTECTION DEVICE FOR ELECTRONIC DEVICES |
US4521822A (en) * | 1981-03-03 | 1985-06-04 | Hydro-Quebec | Current transformer protection device |
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