SE8001097L - Differentialskyddsanordning - Google Patents
DifferentialskyddsanordningInfo
- Publication number
- SE8001097L SE8001097L SE8001097A SE8001097A SE8001097L SE 8001097 L SE8001097 L SE 8001097L SE 8001097 A SE8001097 A SE 8001097A SE 8001097 A SE8001097 A SE 8001097A SE 8001097 L SE8001097 L SE 8001097L
- Authority
- SE
- Sweden
- Prior art keywords
- current
- derived
- sum
- signal
- circuit breaker
- Prior art date
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
- H02H7/04—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 for transformers
- H02H7/045—Differential protection of transformers
- H02H7/0455—Differential protection of transformers taking into account saturation of current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792905195 DE2905195C2 (de) | 1979-02-12 | 1979-02-12 | Differentialschutzeinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8001097L true SE8001097L (sv) | 1980-08-13 |
SE444748B SE444748B (sv) | 1986-04-28 |
Family
ID=6062692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8001097A SE444748B (sv) | 1979-02-12 | 1980-02-12 | Differentialskyddsanordning |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT385865B (sv) |
CH (1) | CH649421A5 (sv) |
DE (1) | DE2905195C2 (sv) |
SE (1) | SE444748B (sv) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3167445D1 (en) * | 1980-07-28 | 1985-01-10 | Bbc Brown Boveri & Cie | Method and apparatus for the differential protection of electrical installations |
JPS596715A (ja) * | 1982-07-01 | 1984-01-13 | 三菱電機株式会社 | 差動保護継電装置 |
JPS5996824A (ja) * | 1982-11-19 | 1984-06-04 | 三菱電機株式会社 | 母線保護継電器 |
JPS60180421A (ja) * | 1984-02-27 | 1985-09-14 | 三菱電機株式会社 | 差動保護継電装置 |
US5627712A (en) * | 1990-04-19 | 1997-05-06 | General Electric Company | Transformer differential relay |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1956527C3 (de) * | 1969-11-11 | 1973-01-04 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Differentialschutzeinrichtung |
US3832600A (en) * | 1973-05-17 | 1974-08-27 | Westinghouse Electric Corp | Transformer internal fault detector |
-
1979
- 1979-02-12 DE DE19792905195 patent/DE2905195C2/de not_active Expired
-
1980
- 1980-02-01 CH CH85380A patent/CH649421A5/de not_active IP Right Cessation
- 1980-02-11 AT AT71980A patent/AT385865B/de not_active IP Right Cessation
- 1980-02-12 SE SE8001097A patent/SE444748B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATA71980A (de) | 1987-10-15 |
DE2905195C2 (de) | 1985-04-04 |
AT385865B (de) | 1988-05-25 |
DE2905195A1 (de) | 1980-08-21 |
SE444748B (sv) | 1986-04-28 |
CH649421A5 (en) | 1985-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8001097-8 Effective date: 19930912 Format of ref document f/p: F |