NL7308212A - - Google Patents
Info
- Publication number
- NL7308212A NL7308212A NL7308212A NL7308212A NL7308212A NL 7308212 A NL7308212 A NL 7308212A NL 7308212 A NL7308212 A NL 7308212A NL 7308212 A NL7308212 A NL 7308212A NL 7308212 A NL7308212 A NL 7308212A
- Authority
- NL
- Netherlands
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
- H02H3/16—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 fault current to earth, frame or mass
- H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
-
- 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
- H02H3/16—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 fault current to earth, frame or mass
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA724073A ZA724073B (en) | 1972-06-13 | 1972-06-13 | Improvements in earth leakage protection |
| ZA724072A ZA724072B (en) | 1972-06-13 | 1972-06-13 | Improvements in direct current level detectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7308212A true NL7308212A (en) | 1973-12-17 |
Family
ID=27131054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7308212A NL7308212A (en) | 1972-06-13 | 1973-06-13 |
Country Status (6)
| Country | Link |
|---|---|
| AU (1) | AU5680073A (en) |
| CH (1) | CH554542A (en) |
| FR (1) | FR2188171A1 (en) |
| GB (1) | GB1440124A (en) |
| IE (1) | IE37776B1 (en) |
| NL (1) | NL7308212A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949718B (en) * | 2024-03-25 | 2024-07-02 | 杭州海康威视数字技术股份有限公司 | Voltage detection system, method and device |
-
1973
- 1973-06-08 IE IE940/73A patent/IE37776B1/en unknown
- 1973-06-11 GB GB2778473A patent/GB1440124A/en not_active Expired
- 1973-06-12 AU AU56800/73A patent/AU5680073A/en not_active Expired
- 1973-06-12 CH CH850473A patent/CH554542A/en not_active IP Right Cessation
- 1973-06-13 FR FR7321534A patent/FR2188171A1/fr not_active Withdrawn
- 1973-06-13 NL NL7308212A patent/NL7308212A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IE37776B1 (en) | 1977-10-12 |
| CH554542A (en) | 1974-09-30 |
| GB1440124A (en) | 1976-06-23 |
| AU5680073A (en) | 1974-12-12 |
| FR2188171A1 (en) | 1974-01-18 |
| IE37776L (en) | 1973-12-13 |