SE410371B - Skyddsreleanordning for ett elektriskt kraftsystem - Google Patents
Skyddsreleanordning for ett elektriskt kraftsystemInfo
- Publication number
- SE410371B SE410371B SE7609521A SE7609521A SE410371B SE 410371 B SE410371 B SE 410371B SE 7609521 A SE7609521 A SE 7609521A SE 7609521 A SE7609521 A SE 7609521A SE 410371 B SE410371 B SE 410371B
- Authority
- SE
- Sweden
- Prior art keywords
- electric power
- power system
- relay device
- protective relay
- protective
- 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
- H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50105131A JPS5228652A (en) | 1975-08-30 | 1975-08-30 | Protective relay for power system |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7609521L SE7609521L (sv) | 1977-03-01 |
SE410371B true SE410371B (sv) | 1979-10-08 |
Family
ID=14399197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7609521A SE410371B (sv) | 1975-08-30 | 1976-08-27 | Skyddsreleanordning for ett elektriskt kraftsystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US4079433A (sv) |
JP (1) | JPS5228652A (sv) |
DE (1) | DE2638812A1 (sv) |
GB (1) | GB1560946A (sv) |
SE (1) | SE410371B (sv) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346648A (en) * | 1976-10-12 | 1978-04-26 | Kyushu Electric Power | Differentiation product type protective relay |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3048744A (en) * | 1953-08-25 | 1962-08-07 | English Electric Co Ltd | Electrical protective relay systems |
GB873129A (en) * | 1956-12-21 | 1961-07-19 | English Electric Co Ltd | Improvements in and relating to electrical time-overcurrent protective relays |
JPS5541105B2 (sv) * | 1973-04-02 | 1980-10-22 | ||
US4006348A (en) * | 1973-10-01 | 1977-02-01 | Tokyo Denryoku Kabushiki Kaisha | Apparatus for monitoring two electric quantities by combining three consecutive samples of each quantity |
JPS5850085B2 (ja) * | 1973-10-01 | 1983-11-08 | 東京電力株式会社 | 保護継電方式 |
JPS5089856A (sv) * | 1973-12-13 | 1975-07-18 | ||
JPS50108541A (sv) * | 1974-01-31 | 1975-08-27 |
-
1975
- 1975-08-30 JP JP50105131A patent/JPS5228652A/ja active Pending
-
1976
- 1976-08-26 US US05/718,004 patent/US4079433A/en not_active Expired - Lifetime
- 1976-08-27 DE DE19762638812 patent/DE2638812A1/de not_active Ceased
- 1976-08-27 SE SE7609521A patent/SE410371B/sv not_active IP Right Cessation
- 1976-08-27 GB GB35787/76A patent/GB1560946A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE7609521L (sv) | 1977-03-01 |
JPS5228652A (en) | 1977-03-03 |
DE2638812A1 (de) | 1977-03-10 |
US4079433A (en) | 1978-03-14 |
GB1560946A (en) | 1980-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7609521-5 Effective date: 19880621 Format of ref document f/p: F |