GB588702A - Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type - Google Patents
Improvements in or relating to a.c. electric circuit-breakers of the gas-blast typeInfo
- Publication number
- GB588702A GB588702A GB547145A GB547145A GB588702A GB 588702 A GB588702 A GB 588702A GB 547145 A GB547145 A GB 547145A GB 547145 A GB547145 A GB 547145A GB 588702 A GB588702 A GB 588702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- blast
- contact
- pressure
- valve
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
Landscapes
- Circuit Breakers (AREA)
Abstract
588,702. Gas-blast switches. REYROLLE & CO., Ltd., A., and CHRISTIE, J. March 5, 1945, No. 5471. [Class 38 (v)] A gas-blast switch has its pneumaticallyoperated contact B prevented from moving until adequate blast pressure is built up in the casing A. Pressure is communicated by pipe F<4> to an adjustable spring-loaded valve F, which by exposing a greater area to the gas when the piston lifts off its seating F<6>, snaps back, allowing pressure to pass to the contact-actuating piston B' via port F<1> and pipe F<2>. The are thus formed is blown through an arc-resisting, metal nozzle so as to extend between contacts E, D, When the blast is shut off, a spring F' closes valve F, venting port F<1> to atmosphere via port F'. In an arrangement with two breaks exhausting through a common vent, Fig. 2 (not shown), two contact-actuating pistons are controlled by one valve to ensure simultaneous opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB547145A GB588702A (en) | 1945-03-05 | 1945-03-05 | Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB547145A GB588702A (en) | 1945-03-05 | 1945-03-05 | Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB588702A true GB588702A (en) | 1947-05-30 |
Family
ID=9796805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB547145A Expired GB588702A (en) | 1945-03-05 | 1945-03-05 | Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB588702A (en) |
-
1945
- 1945-03-05 GB GB547145A patent/GB588702A/en not_active Expired
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