IT1119057B - PROTECTION DEVICE AGAINST EARTH FAULT CURRENTS - Google Patents
PROTECTION DEVICE AGAINST EARTH FAULT CURRENTSInfo
- Publication number
- IT1119057B IT1119057B IT67706/79A IT6770679A IT1119057B IT 1119057 B IT1119057 B IT 1119057B IT 67706/79 A IT67706/79 A IT 67706/79A IT 6770679 A IT6770679 A IT 6770679A IT 1119057 B IT1119057 B IT 1119057B
- Authority
- IT
- Italy
- Prior art keywords
- protection device
- earth fault
- device against
- fault currents
- against earth
- 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 (en) | 1978-04-07 | 1978-04-07 | EARTH FAULT CURRENT PROTECTION DEVICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7967706A0 IT7967706A0 (en) | 1979-04-04 |
| IT1119057B true IT1119057B (en) | 1986-03-03 |
Family
ID=9206878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT67706/79A IT1119057B (en) | 1978-04-07 | 1979-04-04 | PROTECTION DEVICE AGAINST EARTH FAULT CURRENTS |
Country Status (9)
| Country | Link |
|---|---|
| AR (1) | AR218368A1 (en) |
| BR (1) | BR7902016A (en) |
| DE (1) | DE2913096A1 (en) |
| ES (1) | ES479391A1 (en) |
| FR (1) | FR2422276A1 (en) |
| GB (1) | GB2018534A (en) |
| IT (1) | IT1119057B (en) |
| PT (1) | PT69436A (en) |
| ZA (1) | ZA791625B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481851A1 (en) * | 1980-04-30 | 1981-11-06 | Merlin Gerin | DEVICE FOR DIFFERENTIAL PROTECTION SENSITIVE TO A UNIDIRECTIONAL CURRENT |
| DE19702371A1 (en) * | 1997-01-23 | 1998-07-30 | Siemens Ag | Residual current device |
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 (en) * | 1970-03-13 | 1971-12-03 | Saparel | |
| FR2087452A5 (en) * | 1970-05-20 | 1971-12-31 | Seine Ind Electr | |
| CH532855A (en) * | 1970-07-23 | 1973-01-15 | Siemens Ag | Residual current circuit breaker |
| FR2191319B1 (en) * | 1972-06-29 | 1976-03-12 | Radiotechnique Compelec | |
| DE2611674A1 (en) * | 1976-03-19 | 1977-09-22 | Guenter Reichensperger | Protective circuit breaker system - has electronic earth resistance monitor and electronic faulty current monitor to control load circuit breaking |
-
1978
- 1978-04-07 FR FR7810478A patent/FR2422276A1/en active Granted
-
1979
- 1979-03-19 GB GB7909534A patent/GB2018534A/en not_active Withdrawn
- 1979-03-28 AR AR275971A patent/AR218368A1/en active
- 1979-04-02 DE DE19792913096 patent/DE2913096A1/en active Granted
- 1979-04-03 BR BR7902016A patent/BR7902016A/en unknown
- 1979-04-04 IT IT67706/79A patent/IT1119057B/en active
- 1979-04-04 PT PT69436A patent/PT69436A/en unknown
- 1979-04-05 ZA ZA791625A patent/ZA791625B/en unknown
- 1979-04-06 ES ES479391A patent/ES479391A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AR218368A1 (en) | 1980-05-30 |
| FR2422276A1 (en) | 1979-11-02 |
| PT69436A (en) | 1979-05-01 |
| BR7902016A (en) | 1979-11-27 |
| FR2422276B1 (en) | 1980-09-05 |
| IT7967706A0 (en) | 1979-04-04 |
| GB2018534A (en) | 1979-10-17 |
| ES479391A1 (en) | 1980-01-01 |
| DE2913096A1 (en) | 1979-10-18 |
| DE2913096C2 (en) | 1989-07-27 |
| ZA791625B (en) | 1980-06-25 |
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