DK146609C - FAULT CURRENT RELAY - Google Patents
FAULT CURRENT RELAYInfo
- Publication number
- DK146609C DK146609C DK186268A DK186268A DK146609C DK 146609 C DK146609 C DK 146609C DK 186268 A DK186268 A DK 186268A DK 186268 A DK186268 A DK 186268A DK 146609 C DK146609 C DK 146609C
- Authority
- DK
- Denmark
- Prior art keywords
- fault current
- current relay
- relay
- fault
- current
- 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)
- Breakers (AREA)
- Relay Circuits (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK186268A DK146609C (en) | 1968-04-24 | 1968-04-24 | FAULT CURRENT RELAY |
GB5783768A GB1255795A (en) | 1968-04-24 | 1968-12-05 | Earth leakage protection devices |
DE19691905505 DE1905505C3 (en) | 1968-04-24 | 1969-02-05 | Residual current circuit breaker |
FR6912857A FR2009835A1 (en) | 1968-04-24 | 1969-04-23 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK186268A DK146609C (en) | 1968-04-24 | 1968-04-24 | FAULT CURRENT RELAY |
DK186268 | 1968-04-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK146609B DK146609B (en) | 1983-11-14 |
DK146609C true DK146609C (en) | 1984-04-30 |
Family
ID=8108614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK186268A DK146609C (en) | 1968-04-24 | 1968-04-24 | FAULT CURRENT RELAY |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1905505C3 (en) |
DK (1) | DK146609C (en) |
FR (1) | FR2009835A1 (en) |
GB (1) | GB1255795A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555221C2 (en) * | 1975-12-09 | 1984-10-25 | Brown, Boveri & Cie Ag, 6800 Mannheim | Procedure for the detection of residual currents of any kind |
DE2555303C3 (en) * | 1975-12-09 | 1982-03-04 | Brown, Boveri & Cie Ag, 6800 Mannheim | Residual current circuit arrangement |
DE2555302C3 (en) * | 1975-12-09 | 1982-02-25 | Brown, Boveri & Cie Ag, 6800 Mannheim | Residual current protection circuit |
DE2602534A1 (en) * | 1976-01-23 | 1977-07-28 | Siemens Ag | FAULT CURRENT CIRCUIT BREAKER |
GB9016598D0 (en) * | 1990-07-27 | 1990-09-12 | Atomic Energy Authority Uk | Traction system earth fault protection |
DE19534273A1 (en) * | 1995-09-15 | 1997-03-20 | Schupa Elektro Gmbh & Co Kg | Protection device for surge arresters |
CN103368133B (en) * | 2012-03-28 | 2016-08-31 | 施耐德电器工业公司 | There is the earth leakage circuit breaker of low current fault protection between phase line |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE567079C (en) * | 1928-01-17 | 1933-01-03 | H Smolinski Dr Ing | Device for preventing the persistence of fault currents, for example in the event of earth faults in electrical systems |
DE603108C (en) * | 1929-10-29 | 1934-09-22 | Siemens Schuckertwerke Akt Ges | Protection circuit with a relay lying in series with an overcurrent release, which closes its contacts when the permissible current limit is exceeded or not reached |
DE521553C (en) * | 1929-12-21 | 1931-03-24 | Aeg | Current transformer for supplying tripping devices for overcurrent switches |
DE1027297B (en) * | 1953-10-24 | 1958-04-03 | Licentia Gmbh | Current and current direction-dependent protection arrangement for electrical systems |
DE1146181B (en) * | 1961-04-28 | 1963-03-28 | Siemens Ag | Residual current circuit breaker with summation current transformer and amplifier |
DE1140275B (en) * | 1961-05-12 | 1962-11-29 | Vedder Gmbh Geb | Residual current protection circuit |
DK151524C (en) * | 1984-02-23 | 1988-06-13 | Nordischer Maschinenbau | APPLICATION FOR OPENING THE BUGHOLE OF FISH |
-
1968
- 1968-04-24 DK DK186268A patent/DK146609C/en not_active IP Right Cessation
- 1968-12-05 GB GB5783768A patent/GB1255795A/en not_active Expired
-
1969
- 1969-02-05 DE DE19691905505 patent/DE1905505C3/en not_active Expired
- 1969-04-23 FR FR6912857A patent/FR2009835A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1905505B2 (en) | 1973-01-11 |
GB1255795A (en) | 1971-12-01 |
FR2009835A1 (en) | 1970-02-13 |
DE1905505C3 (en) | 1982-04-22 |
DK146609B (en) | 1983-11-14 |
DE1905505A1 (en) | 1969-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |