GB934085A - Electric oil circuit-breaker arc extinction devices - Google Patents
Electric oil circuit-breaker arc extinction devicesInfo
- Publication number
- GB934085A GB934085A GB3482261A GB3482261A GB934085A GB 934085 A GB934085 A GB 934085A GB 3482261 A GB3482261 A GB 3482261A GB 3482261 A GB3482261 A GB 3482261A GB 934085 A GB934085 A GB 934085A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- compartment
- piston
- walls
- oil circuit
- 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
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/75—Liquid-break switches, e.g. oil-break
Landscapes
- Circuit Breakers (AREA)
Abstract
934,085. Oil-break switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 28, 1961 [Nov. 8, 1960], No. 34822/61. Class 38 (5). An oil circuit-breaker arc extinguishing chamber includes a nozzle-shaped fixed contact which, at least in the contact open condition allows oil to pass from a compartment of the extinguishing chamber and has a pocket of gas trapped in the compartment and a differential piston through which the moving contact passes. As shown in Fig. 1, the compartment 7, 8 is filled with oil up to a lever controlled by an opening 9 and on separation of contacts 3, 5 the compression of the gas above the oil results in a flow of oil and arc gases through the nozzle control 3 at current zero. The pressure also forces the piston 4 downward to pump pure oil from the space 10 through a slot 11 which is uncovered as the moving contact is withdrawn along a passage 6 in the piston 4. In Fig. 2 (not shown) an insulating wall is provided between the compartment 7, 8 and the piston to ensure axial oil flow and in Fig. 3 this wall 13 is associated with over pressure valves 16 in the differential piston compartment. In Fig. 4 (not shown) there are two walls between the two parts of the chamber which also has outlet openings between the walls.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1070160 | 1960-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB934085A true GB934085A (en) | 1963-08-14 |
Family
ID=20292721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3482261A Expired GB934085A (en) | 1960-11-08 | 1961-09-28 | Electric oil circuit-breaker arc extinction devices |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH398743A (en) |
| GB (1) | GB934085A (en) |
-
1961
- 1961-09-28 GB GB3482261A patent/GB934085A/en not_active Expired
- 1961-11-07 CH CH1296161A patent/CH398743A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH398743A (en) | 1966-03-15 |
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