SE343719B - - Google Patents
Info
- Publication number
- SE343719B SE343719B SE226268A SE226268A SE343719B SE 343719 B SE343719 B SE 343719B SE 226268 A SE226268 A SE 226268A SE 226268 A SE226268 A SE 226268A SE 343719 B SE343719 B SE 343719B
- 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
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
-
- 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
- H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
- H02H3/334—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
- H02H3/335—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
-
- 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
- H02H7/008—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 protective arrangements according to this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Thermally Actuated Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST026525 | 1967-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE343719B true SE343719B (de) | 1972-03-13 |
Family
ID=7461014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE226268A SE343719B (de) | 1967-02-22 | 1968-02-21 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH460139A (de) |
| FR (1) | FR1558647A (de) |
| NL (1) | NL6802096A (de) |
| SE (1) | SE343719B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096366A (en) * | 1976-11-01 | 1978-06-20 | General Electric Company | Means for detecting a loss of vacuum in vacuum-type circuit interrupters used in polyphase a.c. vacuum circuit breaker |
| AT378444B (de) * | 1983-02-24 | 1985-08-12 | Biegelmeier Gottfried | Leitungsschutzschalter mit durchgefuehrtem neutralleiter und fehlerstromausloesung |
| US5136458A (en) * | 1989-08-31 | 1992-08-04 | Square D Company | Microcomputer based electronic trip system for circuit breakers |
| DE4220569A1 (de) * | 1992-06-24 | 1994-01-05 | Abb Patent Gmbh | Prüfkreisanordnung für einen Fehlerstromschutzschalter |
-
1968
- 1968-02-14 NL NL6802096A patent/NL6802096A/xx unknown
- 1968-02-20 CH CH243268A patent/CH460139A/de unknown
- 1968-02-21 SE SE226268A patent/SE343719B/xx unknown
- 1968-02-21 FR FR1558647D patent/FR1558647A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6802096A (de) | 1968-08-23 |
| DE1588832B2 (de) | 1972-09-07 |
| DE1588832A1 (de) | 1970-11-26 |
| CH460139A (de) | 1968-07-31 |
| FR1558647A (de) | 1969-02-28 |