FR674281A - Dispositifs de protection sélective - Google Patents
Dispositifs de protection sélectiveInfo
- Publication number
- FR674281A FR674281A FR674281DA FR674281A FR 674281 A FR674281 A FR 674281A FR 674281D A FR674281D A FR 674281DA FR 674281 A FR674281 A FR 674281A
- Authority
- FR
- France
- Prior art keywords
- protection devices
- selective protection
- selective
- devices
- protection
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR674281T | 1929-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR674281A true FR674281A (fr) | 1930-01-27 |
Family
ID=9018642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR674281D Expired FR674281A (fr) | 1929-04-30 | 1929-04-30 | Dispositifs de protection sélective |
Country Status (3)
Country | Link |
---|---|
US (1) | US1896943A (fr) |
FR (1) | FR674281A (fr) |
GB (1) | GB353064A (fr) |
-
1929
- 1929-04-30 FR FR674281D patent/FR674281A/fr not_active Expired
-
1930
- 1930-04-15 US US444536A patent/US1896943A/en not_active Expired - Lifetime
- 1930-04-16 GB GB12086/30A patent/GB353064A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1896943A (en) | 1933-02-07 |
GB353064A (en) | 1931-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR681042A (fr) | Dispositif anti-vol | |
FR674281A (fr) | Dispositifs de protection sélective | |
CH145543A (de) | Schalteinrichtung. | |
FR676907A (fr) | Dispositifs de ventilation | |
FR674950A (fr) | Appareils signalisateurs | |
FR37342E (fr) | Appareils signalisateurs | |
FR694650A (fr) | Dispositifs de court-circuit | |
FR679253A (fr) | Pierre de protection de câble | |
FR692268A (fr) | Dispositif conjoncteur-disjoncteur | |
FR694079A (fr) | Dispositifs acoustiques | |
FR685150A (fr) | Dispositif de coffret-table de campement | |
SU16567A1 (ru) | Устройство дл шахтной сигнализации | |
FR686430A (fr) | Dispositifs de protection par relais de distance | |
FI12601A (fi) | Leikkuulaite | |
FR37691E (fr) | Appareils signalisateurs | |
FR37000E (fr) | Appareils signalisateurs | |
FR678776A (fr) | Dispositifs lumineux | |
AT131935B (de) | Selektivschutzrelais. | |
DK44590C (da) | Møtriksikring. | |
DK43196C (da) | Møtriksikring. | |
ES111873A1 (es) | Perfeccionamientos en los aparatos de señales. | |
GR2426B (el) | Συσκευη πολυγραφου. | |
ES113800A1 (es) | Aparato guarda-puesto. | |
ES118713A1 (es) | Dispositivo de seguridad de tornillo | |
CH137490A (de) | Siegelungsgerät. |