SE374627B - - Google Patents
Info
- Publication number
- SE374627B SE374627B SE1163272A SE1163272A SE374627B SE 374627 B SE374627 B SE 374627B SE 1163272 A SE1163272 A SE 1163272A SE 1163272 A SE1163272 A SE 1163272A SE 374627 B SE374627 B SE 374627B
- Authority
- SE
- Sweden
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
- H02H3/28—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
- H02H3/30—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 using pilot wires or other signalling channel
- H02H3/302—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 using pilot wires or other signalling channel involving phase comparison
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Phase Differences (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712144839 DE2144839C3 (de) | 1971-09-08 | 1971-09-08 | Verfahren und Schaltungsanordnung zur Fehlerüberwachung einer Sammelschiene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE374627B true SE374627B (xx) | 1975-03-10 |
Family
ID=5818949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1163272A SE374627B (xx) | 1971-09-08 | 1972-09-08 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2144839C3 (xx) |
| SE (1) | SE374627B (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255774A (en) * | 1979-03-16 | 1981-03-10 | General Electric Company | Static instantaneous overcurrent relay with low transient overreach |
-
1971
- 1971-09-08 DE DE19712144839 patent/DE2144839C3/de not_active Expired
-
1972
- 1972-09-08 SE SE1163272A patent/SE374627B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2144839B2 (de) | 1973-08-23 |
| DE2144839A1 (de) | 1973-03-22 |
| DE2144839C3 (de) | 1980-10-23 |