GB161954A - Improvements in means for reducing the ground current in electric high tension transmission systems - Google Patents
Improvements in means for reducing the ground current in electric high tension transmission systemsInfo
- Publication number
- GB161954A GB161954A GB11120/21A GB1112021A GB161954A GB 161954 A GB161954 A GB 161954A GB 11120/21 A GB11120/21 A GB 11120/21A GB 1112021 A GB1112021 A GB 1112021A GB 161954 A GB161954 A GB 161954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fault
- occurrence
- circuited
- core
- short
- 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
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Transformers For Measuring Instruments (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
161,954. Allmõnna Svenska Elektriska Aktiebolaget. April 16, 1920, [Convention date]. Protects arrangements.-In a high-tension alternating-current distribution system in which each line is earthed through an impedance, the value of the impedance is reduced upon a fault occurring on one of the lines. In one arrangement the core is dimensioned so that magnetic saturation occurs upon the occurrence of a fault. In the modification shown in Fig. 3, the windings of the coils .are cross connected, while in a further modification, shown in Fig. 4, the core is provided with an additional leg upon which a short-circuited winding g is placed. In the modification shown in Fig. 5, portions of the coils are short-circuited by switches h upon the occurrence of a fault; and in a further modification each core is provided with an additional winding which is short-circuited upon the occurrence of a fault. The additional winding may be the secondary winding of a transformer, and the various arrangements may be combined.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE161954X | 1920-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB161954A true GB161954A (en) | 1921-10-13 |
Family
ID=20301857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11120/21A Expired GB161954A (en) | 1920-04-16 | 1921-04-16 | Improvements in means for reducing the ground current in electric high tension transmission systems |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE375096C (en) |
| FR (1) | FR530509A (en) |
| GB (1) | GB161954A (en) |
| NL (1) | NL15250C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2824978A (en) * | 1953-11-09 | 1958-02-25 | Asea Ab | Arrangement for polyphase networks provided with means for high speed reclosing |
| US3501686A (en) * | 1968-08-22 | 1970-03-17 | Asea Ab | Control device for a filter circuit for a static inverter |
-
0
- NL NL15250D patent/NL15250C/xx active
-
1921
- 1921-01-06 DE DEA34655D patent/DE375096C/en not_active Expired
- 1921-02-03 FR FR530509D patent/FR530509A/en not_active Expired
- 1921-04-16 GB GB11120/21A patent/GB161954A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE375096C (en) | 1923-05-07 |
| NL15250C (en) | |
| FR530509A (en) | 1921-12-24 |
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