GB530338A - Improvements relating to gas blast electric circuit breakers - Google Patents
Improvements relating to gas blast electric circuit breakersInfo
- Publication number
- GB530338A GB530338A GB1810439A GB1810439A GB530338A GB 530338 A GB530338 A GB 530338A GB 1810439 A GB1810439 A GB 1810439A GB 1810439 A GB1810439 A GB 1810439A GB 530338 A GB530338 A GB 530338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulators
- gas
- contacts
- resistance
- contact
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
Landscapes
- Circuit Breakers (AREA)
Abstract
530,338. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., and COX, H. E. June 21, 1939, No. 18104. [Class 38 (v)] A pair of extinguishing-heads 1, 2 mounted on arms on insulators 3, 4 rotatable on a base 5, have each a contact 6 on a spring - retracted piston, whereby the contacts 6 can be mutually separated and the arc blown out by gas-pressure in the manner of Specification 483,996, the gas being admitted from a reservoir in the base through pipes in the insulators 3, 4. Insulator 4 supports a further insulator 8 in which is a resistance connected between the contact 6 in head 2 and an auxiliary contact 7, which may be located adjacent the point of engagement of contacts 6, but, as shown, is formed as a flat blade, opposite faces of which are engaged by contacts 6. Of the two arcs formed, one is shunted by, and the other is in series with, the resistance, whereby both arcs are extinguished, whereupon the insulators 3, 4 are rotated to produce an isolating gap. The resistance-electrode arrangement is also applicable to arrangements employing fixed insulators 3, 4 and a separate isolating switch, as in Specification 508,165.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1810439A GB530338A (en) | 1939-06-21 | 1939-06-21 | Improvements relating to gas blast electric circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1810439A GB530338A (en) | 1939-06-21 | 1939-06-21 | Improvements relating to gas blast electric circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB530338A true GB530338A (en) | 1940-12-10 |
Family
ID=10106716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1810439A Expired GB530338A (en) | 1939-06-21 | 1939-06-21 | Improvements relating to gas blast electric circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB530338A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2838637A (en) * | 1956-10-15 | 1958-06-10 | Schwager Wood Corp | Circuit interrupting and isolating means for high voltage circuits |
| US2872550A (en) * | 1956-09-20 | 1959-02-03 | Schwager Wood Corp | High voltage circuit interrupting and isolating apparatus |
| US3576414A (en) * | 1968-10-18 | 1971-04-27 | S & C Electric Co | High voltage switch with preinsertion resistor |
-
1939
- 1939-06-21 GB GB1810439A patent/GB530338A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2872550A (en) * | 1956-09-20 | 1959-02-03 | Schwager Wood Corp | High voltage circuit interrupting and isolating apparatus |
| US2838637A (en) * | 1956-10-15 | 1958-06-10 | Schwager Wood Corp | Circuit interrupting and isolating means for high voltage circuits |
| US3576414A (en) * | 1968-10-18 | 1971-04-27 | S & C Electric Co | High voltage switch with preinsertion resistor |
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