PT69436A - Dispositif de protection contre les courants de defaut a la terre - Google Patents
Dispositif de protection contre les courants de defaut a la terreInfo
- Publication number
- PT69436A PT69436A PT69436A PT6943679A PT69436A PT 69436 A PT69436 A PT 69436A PT 69436 A PT69436 A PT 69436A PT 6943679 A PT6943679 A PT 6943679A PT 69436 A PT69436 A PT 69436A
- Authority
- PT
- Portugal
- Prior art keywords
- earth
- protecting against
- against faulty
- faulty currents
- currents
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
- H02H3/332—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means responsive to dc component in the fault current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
- Thermistors And Varistors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7810478A FR2422276A1 (fr) | 1978-04-07 | 1978-04-07 | Dispositif de protection contre les courants de defaut a la terre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT69436A true PT69436A (fr) | 1979-05-01 |
Family
ID=9206878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT69436A PT69436A (fr) | 1978-04-07 | 1979-04-04 | Dispositif de protection contre les courants de defaut a la terre |
Country Status (9)
| Country | Link |
|---|---|
| AR (1) | AR218368A1 (fi) |
| BR (1) | BR7902016A (fi) |
| DE (1) | DE2913096A1 (fi) |
| ES (1) | ES479391A1 (fi) |
| FR (1) | FR2422276A1 (fi) |
| GB (1) | GB2018534A (fi) |
| IT (1) | IT1119057B (fi) |
| PT (1) | PT69436A (fi) |
| ZA (1) | ZA791625B (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481851A1 (fr) * | 1980-04-30 | 1981-11-06 | Merlin Gerin | Dispositif de protection differentielle sensible a un courant unidirectionnel |
| DE19702371A1 (de) * | 1997-01-23 | 1998-07-30 | Siemens Ag | Fehlerstromschutzeinrichtung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525019A (en) * | 1967-07-20 | 1970-08-18 | John Lansch | Power protection apparatus |
| FR2081177A6 (fi) * | 1970-03-13 | 1971-12-03 | Saparel | |
| FR2087452A5 (fi) * | 1970-05-20 | 1971-12-31 | Seine Ind Electr | |
| CH532855A (de) * | 1970-07-23 | 1973-01-15 | Siemens Ag | Fehlerstromschutzschalteinrichtung |
| FR2191319B1 (fi) * | 1972-06-29 | 1976-03-12 | Radiotechnique Compelec | |
| DE2611674A1 (de) * | 1976-03-19 | 1977-09-22 | Guenter Reichensperger | Schutzschalter |
-
1978
- 1978-04-07 FR FR7810478A patent/FR2422276A1/fr active Granted
-
1979
- 1979-03-19 GB GB7909534A patent/GB2018534A/en not_active Withdrawn
- 1979-03-28 AR AR275971A patent/AR218368A1/es active
- 1979-04-02 DE DE19792913096 patent/DE2913096A1/de active Granted
- 1979-04-03 BR BR7902016A patent/BR7902016A/pt unknown
- 1979-04-04 IT IT67706/79A patent/IT1119057B/it active
- 1979-04-04 PT PT69436A patent/PT69436A/pt unknown
- 1979-04-05 ZA ZA791625A patent/ZA791625B/xx unknown
- 1979-04-06 ES ES479391A patent/ES479391A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES479391A1 (es) | 1980-01-01 |
| AR218368A1 (es) | 1980-05-30 |
| GB2018534A (en) | 1979-10-17 |
| IT7967706A0 (it) | 1979-04-04 |
| ZA791625B (en) | 1980-06-25 |
| IT1119057B (it) | 1986-03-03 |
| BR7902016A (pt) | 1979-11-27 |
| DE2913096C2 (fi) | 1989-07-27 |
| FR2422276B1 (fi) | 1980-09-05 |
| FR2422276A1 (fr) | 1979-11-02 |
| DE2913096A1 (de) | 1979-10-18 |
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