GB526740A - Improvements in protective devices for electric circuits - Google Patents
Improvements in protective devices for electric circuitsInfo
- Publication number
- GB526740A GB526740A GB108539A GB108539A GB526740A GB 526740 A GB526740 A GB 526740A GB 108539 A GB108539 A GB 108539A GB 108539 A GB108539 A GB 108539A GB 526740 A GB526740 A GB 526740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- discharge
- gap
- earth
- electrodes
- 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
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
526,740. Protective arrangements. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, GOLDE, R. H., LACEY, H. M., HAWLEY, W. G., and NETHERCOT, W. Jan. 12, 1939, Nos. 1085 and 17426. [Class 38 (iv)] Protection against high voltage surges comprises an inductance in series in a transmission line and connected between two electrodes of a discharge gap of which another electrode is connected to earth, and the surge energy is dissipated in a resistance which is put in parallel with the inductance by the discharge. The inductance may be tapped or divided, a further electrode of the gap being connected at the junction of the portions. The electrodes may be grouped around an isolated electrode. Discharge between the first two electrodes reduces the time lag of the discharge to earth. Fig. 6 shows a wooden frame 22 carrying an inductance coil 23 suspended by insulators from a gantry which also carries an expulsion gap 27 through which the discharge passes to earth. The inductance is connected to an incoming line 40 and to a substation 11. Electrodes 13 and 14, the latter in series with a resistance 16, are carried by the inductance and co-operate with an electrode 15 radiused about the point of support 30 to prevent movement changing the gap dimensions. The discharge path to earth may include or be supplemented by any suitable lightning arrester expulsion gap or resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB108539A GB526740A (en) | 1939-01-12 | 1939-01-12 | Improvements in protective devices for electric circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB108539A GB526740A (en) | 1939-01-12 | 1939-01-12 | Improvements in protective devices for electric circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526740A true GB526740A (en) | 1940-09-25 |
Family
ID=9715903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB108539A Expired GB526740A (en) | 1939-01-12 | 1939-01-12 | Improvements in protective devices for electric circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360696A (en) * | 2018-11-07 | 2019-02-19 | 南宁超伏电气科技有限公司 | Double bullet back-up devices of the protection superposition thunder of detent under a kind of open ended |
-
1939
- 1939-01-12 GB GB108539A patent/GB526740A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360696A (en) * | 2018-11-07 | 2019-02-19 | 南宁超伏电气科技有限公司 | Double bullet back-up devices of the protection superposition thunder of detent under a kind of open ended |
| CN109360696B (en) * | 2018-11-07 | 2023-10-10 | 南宁超伏电气科技有限公司 | Double-bullet backup device for protection superposition mine of open-circuit type lower clamping position |
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