GB2159354B - Electrical protective devices - Google Patents
Electrical protective devicesInfo
- Publication number
- GB2159354B GB2159354B GB08408586A GB8408586A GB2159354B GB 2159354 B GB2159354 B GB 2159354B GB 08408586 A GB08408586 A GB 08408586A GB 8408586 A GB8408586 A GB 8408586A GB 2159354 B GB2159354 B GB 2159354B
- Authority
- GB
- United Kingdom
- Prior art keywords
- protective devices
- electrical protective
- electrical
- devices
- protective
- 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
- H02H3/26—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
-
- 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
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
- H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08408586A GB2159354B (en) | 1984-04-03 | 1984-04-03 | Electrical protective devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08408586A GB2159354B (en) | 1984-04-03 | 1984-04-03 | Electrical protective devices |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8408586D0 GB8408586D0 (en) | 1984-05-16 |
GB2159354A GB2159354A (en) | 1985-11-27 |
GB2159354B true GB2159354B (en) | 1987-10-28 |
Family
ID=10559109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08408586A Expired GB2159354B (en) | 1984-04-03 | 1984-04-03 | Electrical protective devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2159354B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9109477D0 (en) * | 1991-05-02 | 1991-06-26 | Mk Electric Ltd | Electrical protection devices |
EP0513405A1 (en) * | 1991-05-11 | 1992-11-19 | Intermacom A.G. | Method and apparatus for current interruption in electrically-powered apparatus and equipment |
SE543846C2 (en) * | 2019-12-06 | 2021-08-10 | Blixt Tech Ab | Residual current circuit breaker |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1546573A (en) * | 1976-10-27 | 1979-05-23 | Univ Loughborough | Electrical safety circuits |
CA1156300A (en) * | 1980-04-01 | 1983-11-01 | Gordon S. Carlson | Electric blanket safety circuit |
US4436986A (en) * | 1981-11-23 | 1984-03-13 | Sunbeam Corporation | Electric blanket safety circuit |
GB2119187B (en) * | 1982-04-16 | 1985-06-05 | Standard Telephones Cables Ltd | Telecommunication exchange protection |
-
1984
- 1984-04-03 GB GB08408586A patent/GB2159354B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8408586D0 (en) | 1984-05-16 |
GB2159354A (en) | 1985-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
746 | Register noted 'licences of right' (sect. 46/1977) |
Effective date: 19940217 |
|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960403 |