GB938972A - Improvements in or relating to couplings for electric networks - Google Patents
Improvements in or relating to couplings for electric networksInfo
- Publication number
- GB938972A GB938972A GB1603861A GB1603861A GB938972A GB 938972 A GB938972 A GB 938972A GB 1603861 A GB1603861 A GB 1603861A GB 1603861 A GB1603861 A GB 1603861A GB 938972 A GB938972 A GB 938972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- networks
- coil
- link
- short circuit
- 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
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
- 239000003990 capacitor Substances 0.000 abstract 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000008034 disappearance Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/028—Current limitation by detuning a series resonant circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
938,972. Transmission and distribution networks. GENERAL ELECTRIC CO. Ltd. April 12, 1962 [May 3, 1961], No. 16038/61. Class 38 (4). An impedance link between two alternating current networks 1, 2 comprises an inductor or transductor 3 and a capacitor 4 which are tuned to the network frequency so as to have a low impedance. When a fault condition arises such as a short circuit in one of the networks the voltage across the capacitor 4 increases whereupon the spark gap 8 breaks down to energize a coil 6 which closes contact 5 to short circuit the capacitor 4, the link impedance then being that of the inductor 3 only. During fault conditions the difference in voltage between the networks energizes a relay 9 to open contacts 10 so that the coil 7 associated with the contact 5 cannot be energized. Upon the disappearance of the fault condition the relay 9 becomes deenergized and, after a time delay, contacts 10 close to energize the coil 7 to open contact 5 thereby removing the short circuit from the capacitor 4 to return the link to its low impedance state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1603861A GB938972A (en) | 1961-05-03 | 1961-05-03 | Improvements in or relating to couplings for electric networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1603861A GB938972A (en) | 1961-05-03 | 1961-05-03 | Improvements in or relating to couplings for electric networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB938972A true GB938972A (en) | 1963-10-09 |
Family
ID=10070019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1603861A Expired GB938972A (en) | 1961-05-03 | 1961-05-03 | Improvements in or relating to couplings for electric networks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB938972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1213039B (en) * | 1964-01-04 | 1966-03-24 | Licentia Gmbh | Arrangement to limit overcurrents |
| WO2006010725A1 (en) * | 2004-07-26 | 2006-02-02 | Siemens Aktiengesellschaft | Current limiter comprising a spark gap |
-
1961
- 1961-05-03 GB GB1603861A patent/GB938972A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1213039B (en) * | 1964-01-04 | 1966-03-24 | Licentia Gmbh | Arrangement to limit overcurrents |
| WO2006010725A1 (en) * | 2004-07-26 | 2006-02-02 | Siemens Aktiengesellschaft | Current limiter comprising a spark gap |
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