BE678761A - - Google Patents
Info
- Publication number
- BE678761A BE678761A BE678761DA BE678761A BE 678761 A BE678761 A BE 678761A BE 678761D A BE678761D A BE 678761DA BE 678761 A BE678761 A BE 678761A
- Authority
- BE
- Belgium
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
- H02H3/32—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
- H02H3/34—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 of a three-phase system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE678761 | 1966-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE678761A true BE678761A (fr) | 1966-09-01 |
Family
ID=3848418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE678761D BE678761A (fr) | 1966-03-31 | 1966-03-31 |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE678761A (fr) |
CH (1) | CH463607A (fr) |
-
1966
- 1966-03-31 BE BE678761D patent/BE678761A/xx unknown
- 1966-04-19 CH CH567166A patent/CH463607A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
CH463607A (fr) | 1968-10-15 |