GB230503A - An improved protective device for high tension networks provided with earthing coils - Google Patents
An improved protective device for high tension networks provided with earthing coilsInfo
- Publication number
- GB230503A GB230503A GB6540/25A GB654025A GB230503A GB 230503 A GB230503 A GB 230503A GB 6540/25 A GB6540/25 A GB 6540/25A GB 654025 A GB654025 A GB 654025A GB 230503 A GB230503 A GB 230503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- earthing
- spark gap
- earth
- resistance
- 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
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
230,503. Akt.-Ges. Brown, Boveri, et Cie. March 10, 1924, [Convention date]. Cut-out arrangements.-In protective devices for high tension networks having earthing coils D, or D1, D2, the coils are normally combined with auxiliary resistances, either an ohmic resistance W, or a spark gap F so that the resultant resistance is either very high or very low, but these auxiliary resistances are automatically cut out by a current or voltage relay R when a leak to earth occurs. In the form shown in Fig. 4, the switch closes on earth leak to short-circuit the spark gap. The spark gap has a disruptive discharge voltage less than that of the network. The Specification as open to inspection under Sect, 91 (3) (a) describes also an arrangement shown in Fig. 5 (Cancelled), in which on the occurrence of a fault the resistance of the neutral point to earth is increased by the automatic opening of the switch S, which, together with the ohmic resistance W, is connected across the earthing coil. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE230503X | 1924-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB230503A true GB230503A (en) | 1926-06-10 |
Family
ID=5870691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6540/25A Expired GB230503A (en) | 1924-03-10 | 1925-03-10 | An improved protective device for high tension networks provided with earthing coils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB230503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739269A (en) * | 1951-10-13 | 1956-03-20 | Westinghouse Electric Corp | Protective devices |
-
1925
- 1925-03-10 GB GB6540/25A patent/GB230503A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739269A (en) * | 1951-10-13 | 1956-03-20 | Westinghouse Electric Corp | Protective devices |
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