GB554210A - Arrangement in electric differential protection devices - Google Patents
Arrangement in electric differential protection devicesInfo
- Publication number
- GB554210A GB554210A GB5044/42A GB504442A GB554210A GB 554210 A GB554210 A GB 554210A GB 5044/42 A GB5044/42 A GB 5044/42A GB 504442 A GB504442 A GB 504442A GB 554210 A GB554210 A GB 554210A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- currents
- relay
- contacts
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
-
- 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
- H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE228757X | 1941-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB554210A true GB554210A (en) | 1943-06-24 |
Family
ID=20305632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5044/42A Expired GB554210A (en) | 1941-05-05 | 1942-04-16 | Arrangement in electric differential protection devices |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH228757A (fr) |
DE (1) | DE762983C (fr) |
FR (1) | FR881766A (fr) |
GB (1) | GB554210A (fr) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE612747C (de) * | 1928-08-04 | 1935-05-03 | Siemens & Halske Akt Ges | Differentialschutzanordnung fuer Teile einer elektrischen Anlage |
-
1942
- 1942-04-10 CH CH228757D patent/CH228757A/de unknown
- 1942-04-11 DE DEST61716D patent/DE762983C/de not_active Expired
- 1942-04-16 GB GB5044/42A patent/GB554210A/en not_active Expired
- 1942-05-05 FR FR881766D patent/FR881766A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH228757A (de) | 1943-09-15 |
FR881766A (fr) | 1943-05-07 |
DE762983C (de) | 1953-06-22 |
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