GB853243A - Arrangement in air-blast electric circuit-breakers - Google Patents
Arrangement in air-blast electric circuit-breakersInfo
- Publication number
- GB853243A GB853243A GB10106/59A GB1010659A GB853243A GB 853243 A GB853243 A GB 853243A GB 10106/59 A GB10106/59 A GB 10106/59A GB 1010659 A GB1010659 A GB 1010659A GB 853243 A GB853243 A GB 853243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- valve
- blast
- container
- pressure
- 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
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
853,243. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. March 24, 1959 [March 25, 1958], No. 10106/59. Class 38 (5). In an air-blast circuit-breaker compressed air from a pipe 16 is supplied to a control-air container 11 through a non-return valve 18, and to an air-blast container 10 through a non-return valve 17 and a normally open stop valve 19 controlled by a differential piston 21. Normally the container 1, housing a stationary contact 2 and a nozzle-shaped movable contact 3, is permanently filled with compressed air and the breaker is operated by admitting control air to space 6, normally at atmospheric pressure, through a valve 14 to depress a spring-controlled piston 4, thus allowing blast air to flow out through a channel 9 and a valve 15, which closes when the breaking gap is fully opened. Should the air pressure in container 10 decrease beyond a predetermined value due to a leak, the valve 19 is closed by the piston 21 to maintain the pressure in the pipe 16 and thus prevent a pressure drop in the control-air system (due to normal leakage) causing undesirable closing of the moving contact 3. The piston design is such that pressure differences caused during normal operation of the breaker do not actuate the valve 19. A spring 20 is provided to keep the valve 19 open when containers 10, 11 are empty of air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE853243X | 1958-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB853243A true GB853243A (en) | 1960-11-02 |
Family
ID=20362726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10106/59A Expired GB853243A (en) | 1958-03-25 | 1959-03-24 | Arrangement in air-blast electric circuit-breakers |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1069739B (en) |
| FR (1) | FR1220421A (en) |
| GB (1) | GB853243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150361975A1 (en) * | 2014-06-13 | 2015-12-17 | Clark Equipment Company | Air compressor discharge system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH579318A5 (en) * | 1974-12-10 | 1976-08-31 | Bbc Brown Boveri & Cie |
-
0
- DE DENDAT1069739D patent/DE1069739B/de active Pending
-
1959
- 1959-03-24 GB GB10106/59A patent/GB853243A/en not_active Expired
- 1959-03-25 FR FR790312A patent/FR1220421A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150361975A1 (en) * | 2014-06-13 | 2015-12-17 | Clark Equipment Company | Air compressor discharge system |
| US10378536B2 (en) * | 2014-06-13 | 2019-08-13 | Clark Equipment Company | Air compressor discharge system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1220421A (en) | 1960-05-24 |
| DE1069739B (en) | 1959-11-26 |
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