SE304325B - - Google Patents
Info
- Publication number
- SE304325B SE304325B SE12787/63A SE1278763A SE304325B SE 304325 B SE304325 B SE 304325B SE 12787/63 A SE12787/63 A SE 12787/63A SE 1278763 A SE1278763 A SE 1278763A SE 304325 B SE304325 B SE 304325B
- Authority
- SE
- Sweden
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE12787/63A SE304325B (de) | 1963-11-20 | 1963-11-20 | |
DEA47528A DE1297197B (de) | 1963-11-20 | 1964-11-05 | Transformatiordifferentialschutz |
CH1477064A CH429897A (de) | 1963-11-20 | 1964-11-12 | Transformatordifferentialschutz |
US411325A US3323016A (en) | 1963-11-20 | 1964-11-16 | Transformer differential protection |
GB47100/64A GB1078104A (en) | 1963-11-20 | 1964-11-19 | Transformer differential protection means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE12787/63A SE304325B (de) | 1963-11-20 | 1963-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE304325B true SE304325B (de) | 1968-09-23 |
Family
ID=20296296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE12787/63A SE304325B (de) | 1963-11-20 | 1963-11-20 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3323016A (de) |
CH (1) | CH429897A (de) |
DE (1) | DE1297197B (de) |
GB (1) | GB1078104A (de) |
SE (1) | SE304325B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4204237A (en) * | 1978-11-30 | 1980-05-20 | Gould Inc. | Solid state transformer differential relay |
AU560683B2 (en) * | 1982-06-23 | 1987-04-16 | Mitsubishi Denki Kabushiki Kaisha | Protective relay with second harmonic suppression |
US4903160A (en) * | 1985-02-25 | 1990-02-20 | Westinghouse Electric Corp. | Sudden, pressure relay supervisory apparatus |
US5014153A (en) * | 1989-02-01 | 1991-05-07 | Basler Electric Company | Transformer differential relay |
US5627712A (en) * | 1990-04-19 | 1997-05-06 | General Electric Company | Transformer differential relay |
CN106165230B (zh) * | 2014-03-28 | 2019-01-04 | 西门子公司 | 差分保护方法和差分保护装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2863100A (en) * | 1955-11-23 | 1958-12-02 | Gen Electric | Protective relaying equipment |
DE1046162B (de) * | 1956-04-23 | 1958-12-11 | Licentia Gmbh | Relais mit einer von der Kurvenform der zu ueberwachenden elektrischen Groesse abhaengigen Ansprechempfindlichkeit |
US3144590A (en) * | 1958-06-13 | 1964-08-11 | Westinghouse Electric Corp | Frequency selective networks |
DE1100781B (de) * | 1959-07-31 | 1961-03-02 | Siemens Ag | Schaltungsanordnung fuer einen einschaltsicheren Differential-schutz fuer Transformatoren |
-
1963
- 1963-11-20 SE SE12787/63A patent/SE304325B/xx unknown
-
1964
- 1964-11-05 DE DEA47528A patent/DE1297197B/de not_active Withdrawn
- 1964-11-12 CH CH1477064A patent/CH429897A/de unknown
- 1964-11-16 US US411325A patent/US3323016A/en not_active Expired - Lifetime
- 1964-11-19 GB GB47100/64A patent/GB1078104A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3323016A (en) | 1967-05-30 |
DE1297197B (de) | 1969-06-12 |
GB1078104A (en) | 1967-08-02 |
CH429897A (de) | 1967-02-15 |