GB869787A - Oil-blast electric circuit-breaker for high interruption currents - Google Patents
Oil-blast electric circuit-breaker for high interruption currentsInfo
- Publication number
- GB869787A GB869787A GB33947/59A GB3394759A GB869787A GB 869787 A GB869787 A GB 869787A GB 33947/59 A GB33947/59 A GB 33947/59A GB 3394759 A GB3394759 A GB 3394759A GB 869787 A GB869787 A GB 869787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- chamber
- channel
- valve
- breaker
- 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
869,787. Liquid-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Oct. 7, 1959 [Oct. 23, 1958], No. 33947/59. Class 38 (5). An extinguishing chamber 1 for an oilblast circuit-breaker has a cover 2 provided with a cylinder 3 carrying a stationary nozzleshaped contact 4 and having an outlet channel 9 normally closed by a spring-loaded stop valve 10, members 1, 2 and 3 forming a closed annular space above the oil. On separation of the contacts 4, 5 the arc formed raises the oil level in chamber 1 to compress the gas in the space 12 until a current zero, when the gas pressure forces arcextinguishing oil from the chamber 1 through the nozzle, channel 9 and valve 10, an opening 7 and a channel 11 allowing restoration of the oil levels in chamber 1 and channel 9 after breaking. When interrupting low currents, the valve 10 is initially closed to increase the pressure build-up in space 12 and arc extinction is assisted by one or more oil pockets 13, openings 8 serving to relieve pressure in the chamber 1 when high currents are broken. The chamber may be partly or fully immersed in oil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE982558 | 1958-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869787A true GB869787A (en) | 1961-06-07 |
Family
ID=20277599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33947/59A Expired GB869787A (en) | 1958-10-23 | 1959-10-07 | Oil-blast electric circuit-breaker for high interruption currents |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3010003A (en) |
| CH (1) | CH373447A (en) |
| DE (1) | DE1110271B (en) |
| FR (1) | FR1239080A (en) |
| GB (1) | GB869787A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH378392A (en) * | 1959-09-09 | 1964-06-15 | Asea Ab | Oil switch |
| US3141083A (en) * | 1960-11-08 | 1964-07-14 | Asea Ab | Extinguishing chamber for oil circuit breaker having differential piston and gas filled space therein |
| JPS524067A (en) * | 1975-05-30 | 1977-01-12 | Mitsubishi Electric Corp | Gas breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL65476B (en) * | 1932-06-02 | |||
| DE683017C (en) * | 1934-06-12 | 1939-10-27 | F W Pape | Circuit breaker with an isolating point below the liquid level |
| DE695436C (en) * | 1935-02-17 | 1940-08-24 | Peter Bendmann | Erase chamber for liquid switch |
-
1959
- 1959-10-07 GB GB33947/59A patent/GB869787A/en not_active Expired
- 1959-10-08 CH CH7925559A patent/CH373447A/en unknown
- 1959-10-15 US US846671A patent/US3010003A/en not_active Expired - Lifetime
- 1959-10-22 DE DEA33091A patent/DE1110271B/en active Pending
- 1959-10-23 FR FR808294A patent/FR1239080A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH373447A (en) | 1963-11-30 |
| DE1110271B (en) | 1961-07-06 |
| FR1239080A (en) | 1960-08-19 |
| US3010003A (en) | 1961-11-21 |
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