GB1440124A - Leakage detection and protection for electrical equipment - Google Patents
Leakage detection and protection for electrical equipmentInfo
- Publication number
- GB1440124A GB1440124A GB2778473A GB2778473A GB1440124A GB 1440124 A GB1440124 A GB 1440124A GB 2778473 A GB2778473 A GB 2778473A GB 2778473 A GB2778473 A GB 2778473A GB 1440124 A GB1440124 A GB 1440124A
- Authority
- GB
- United Kingdom
- Prior art keywords
- protection
- comparator
- june
- electrical equipment
- leakage detection
- 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
- 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 |
---|---|
GB1440124A true GB1440124A (en) | 1976-06-23 |
Family
ID=27131054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2778473A Expired GB1440124A (en) | 1972-06-13 | 1973-06-11 | Leakage detection and protection for electrical equipment |
Country Status (6)
Country | Link |
---|---|
AU (1) | AU5680073A (xx) |
CH (1) | CH554542A (xx) |
FR (1) | FR2188171A1 (xx) |
GB (1) | GB1440124A (xx) |
IE (1) | IE37776B1 (xx) |
NL (1) | NL7308212A (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117949718A (zh) * | 2024-03-25 | 2024-04-30 | 杭州海康威视数字技术股份有限公司 | 电压检测系统、方法及装置 |
-
1973
- 1973-06-08 IE IE940/73A patent/IE37776B1/xx 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/xx 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
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117949718A (zh) * | 2024-03-25 | 2024-04-30 | 杭州海康威视数字技术股份有限公司 | 电压检测系统、方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
IE37776L (en) | 1973-12-13 |
CH554542A (de) | 1974-09-30 |
FR2188171A1 (xx) | 1974-01-18 |
NL7308212A (xx) | 1973-12-17 |
IE37776B1 (en) | 1977-10-12 |
AU5680073A (en) | 1974-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |