GB765287A - Improvements in or relating to electric circuit interrupters - Google Patents
Improvements in or relating to electric circuit interruptersInfo
- Publication number
- GB765287A GB765287A GB7821/55A GB782155A GB765287A GB 765287 A GB765287 A GB 765287A GB 7821/55 A GB7821/55 A GB 7821/55A GB 782155 A GB782155 A GB 782155A GB 765287 A GB765287 A GB 765287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- blast
- gas
- march
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
765,287. Gas-blast switches. WESTING- HOUSE ELECTRIC INTERNATIONAL .CO. March 17,1955 [March 22, 1954], No. 7821/55. Class 38(5) In a gas-blast circuit interrupter, the blast is produced by the movement of a cylinder 37 about a stationary piston 36. The cylinder carries the moving contact 19 and is moved by a lift rod 20. The blast may be directed by an insulating tubular member 43 secured to the end 39 of the cylinder and the metal parts, i.e. the cylinder and piston, may be shielded from hot arc products by an insulating shield 47 screwed on the member 43. The arc extinguishing gas may be sulphur hexafluoride, in which case the members 43, 47 would be of polytetrafluoroethylene polychlorotrifluoroethylene or polyvinyl fluoride. The piston 36 may have a non- return disc valve 53 and the cylinder 37 may have ports 42 to delay the flow of the fluid until the movement of the cylinder moves the ports above the piston. The Specification describes the interrupter in a load-break disconnect switch arrangement which is substantially that of Specification 710,925.. Specification 736,090 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US417622A US2788418A (en) | 1954-03-22 | 1954-03-22 | Circuit interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB765287A true GB765287A (en) | 1957-01-09 |
Family
ID=23654732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7821/55A Expired GB765287A (en) | 1954-03-22 | 1955-03-17 | Improvements in or relating to electric circuit interrupters |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2788418A (en) |
| FR (1) | FR1133367A (en) |
| GB (1) | GB765287A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069740B (en) * | 1956-12-20 | 1959-11-26 | ||
| CA653845A (en) * | 1957-01-31 | 1962-12-11 | Westinghouse Electric Corporation | High speed electric switch |
| US3114815A (en) * | 1959-11-18 | 1963-12-17 | Westinghouse Electric Corp | Fluid-blast circuit interrupter with improved current-transformer housing means |
| US3576961A (en) * | 1968-08-02 | 1971-05-04 | Turner Electric Corp | Vacuum switch with operating means for arresting contact in an intermediate position before complete opening |
| US4319105A (en) * | 1976-12-27 | 1982-03-09 | Siemens-Allis, Inc. | High voltage air disconnect switch incorporating a puffer type load break switch |
| FR2472257A1 (en) * | 1979-12-21 | 1981-06-26 | Merlin Gerin | Gas blast interrupter - has spring biassed piston drawn back during first opening phase and released to provide air blast to extinguish arc. |
| JPS58108624A (en) * | 1981-12-22 | 1983-06-28 | 三菱電機株式会社 | Buffer type gas breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE440836A (en) * | 1939-06-22 | |||
| BE473294A (en) * | 1946-05-21 |
-
1954
- 1954-03-22 US US417622A patent/US2788418A/en not_active Expired - Lifetime
-
1955
- 1955-03-17 GB GB7821/55A patent/GB765287A/en not_active Expired
- 1955-03-22 FR FR1133367D patent/FR1133367A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2788418A (en) | 1957-04-09 |
| FR1133367A (en) | 1957-03-26 |
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