GB1242900A - Improvements in high voltage electric circuit breakers - Google Patents
Improvements in high voltage electric circuit breakersInfo
- Publication number
- GB1242900A GB1242900A GB6130968A GB6130968A GB1242900A GB 1242900 A GB1242900 A GB 1242900A GB 6130968 A GB6130968 A GB 6130968A GB 6130968 A GB6130968 A GB 6130968A GB 1242900 A GB1242900 A GB 1242900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- breaking
- oil
- chambers
- 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)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
1,242,900. Oil-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. 24 Dec., 1968 [27 Dec., 1967], No. 61309/68. Heading HlN. A low oil content high voltage circuit breaker which does not re-ignite during oapacitative breaking has each contact pair arranged in a breaking chamber 1, 2, which is only partly filled with oil so that a gas-filled space 14 is formed in the chamber, compressed gas filling the space 14 and being supplied via an insulating conduit 20 and a valve 21 which is open during normal operation but closes on contact breaking when the pressure in space 14 exceeds a certain value. An exhaust valve 22 opens when pressure is above a higher certain value. After a breaking process, when the pressure decreases, valve 21 opens before valve 22 closes. Valve 21 remains closed for a certain period. Spaces 14 in chambers 1, 2 are in communication with one another. The extinguishing chamber 11 is of the differential piston type. Reference is made to the arc generating a flow of liquid in chamber 11. Compressed gas at earth potential is led from a compressor 15, via drying means 16, a storage tank 17 and a reducing valve 18, through a hollow support insulator 6 to the operating mechanism housing 3 and via a plastics conduit 20 to chambers 1, 2. The gas may alternatively be supplied via an external porcelain tube. One compressor 15 may supply a plurality of poles and circuit breakers (not shown) via conduit 19. Chambers 1, 2 communicate via mechanism chamber 3 which is completely filled with oil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1779067A SE310726B (en) | 1967-12-27 | 1967-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1242900A true GB1242900A (en) | 1971-08-18 |
Family
ID=20303981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6130968A Expired GB1242900A (en) | 1967-12-27 | 1968-12-24 | Improvements in high voltage electric circuit breakers |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH487493A (en) |
| DE (1) | DE1815373A1 (en) |
| FR (1) | FR1597049A (en) |
| GB (1) | GB1242900A (en) |
| SE (1) | SE310726B (en) |
-
1967
- 1967-12-27 SE SE1779067A patent/SE310726B/xx unknown
-
1968
- 1968-12-18 DE DE19681815373 patent/DE1815373A1/en active Pending
- 1968-12-20 CH CH1949368A patent/CH487493A/en not_active IP Right Cessation
- 1968-12-23 FR FR1597049D patent/FR1597049A/fr not_active Expired
- 1968-12-24 GB GB6130968A patent/GB1242900A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE310726B (en) | 1969-05-12 |
| CH487493A (en) | 1970-03-15 |
| FR1597049A (en) | 1970-06-22 |
| DE1815373A1 (en) | 1969-07-31 |
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