GB662826A - Air blast electric circuit breaker for large currents - Google Patents
Air blast electric circuit breaker for large currentsInfo
- Publication number
- GB662826A GB662826A GB20552/49A GB2055249A GB662826A GB 662826 A GB662826 A GB 662826A GB 20552/49 A GB20552/49 A GB 20552/49A GB 2055249 A GB2055249 A GB 2055249A GB 662826 A GB662826 A GB 662826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pairs
- interrupting
- contacts
- parallel
- bridging
- 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
- 239000004020 conductor Substances 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Abstract
662,826. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 8,1949. [Aug. 7, 1948] No. 20552/49. Class 38 (v). Each phase of an air-blast switch is provided with two or more series connected interruptors to which air is supplied through parallel delivery pipes or channels, and one or more parallel connected bridging contact pairs arranged before the interrupters with respect to the delivery of compressed air. In Fig. 3 the arrangement comprises two pairs of interrupting contacts 5, 6 connected in series by means of conductors 19, 20, 22, and two pairs of bridging contacts 11, 12 connected in parallel with each other and with the series connected interrupting contacts. An interrupting unit and a bridging contact unit are arranged in each of two insulating columns to which compressed air may be admitted by blast valves 2 from a container 1. An isolator or disconnecting switch 14, 16, may be provided. In a .modification, Fig. 2, (not shown) one bridging contact assembly is used in. conjunction with two interrupting units, the latter being housed in two parallel insulating cylinders joined by a common pipe to the single insulator housing the bridging contact assembly. Figs. 1a and 1b (not shown) illustrate an arrangement having three pairs of interrupting contacts and three pairs of bridging contacts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE275595X | 1948-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB662826A true GB662826A (en) | 1951-12-12 |
Family
ID=20306884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20552/49A Expired GB662826A (en) | 1948-08-07 | 1949-08-08 | Air blast electric circuit breaker for large currents |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2658128A (en) |
| CH (1) | CH275595A (en) |
| FR (1) | FR991998A (en) |
| GB (1) | GB662826A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB749004A (en) * | 1953-03-09 | 1956-05-16 | Vickers Electrical Co Ltd | Improvements relating to multi-break air-or gas-blast electric circuit breakers |
| CH346926A (en) * | 1956-09-22 | 1960-06-15 | Bbc Brown Boveri & Cie | Electrical circuit breaker with parallel branches |
| US3070680A (en) * | 1959-02-27 | 1962-12-25 | Chance Co Ab | Switch gear |
| US4044210A (en) * | 1975-07-17 | 1977-08-23 | Westinghouse Electric Corporation | Fluid-blast circuit interrupter |
| US4378294A (en) * | 1981-03-16 | 1983-03-29 | Uop Inc. | Filament wound well screen and method and apparatus for making same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE441359A (en) * | 1940-05-06 | |||
| NL62332C (en) * | 1943-09-11 |
-
1949
- 1949-07-26 CH CH275595D patent/CH275595A/en unknown
- 1949-08-04 US US108522A patent/US2658128A/en not_active Expired - Lifetime
- 1949-08-06 FR FR991998D patent/FR991998A/en not_active Expired
- 1949-08-08 GB GB20552/49A patent/GB662826A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH275595A (en) | 1951-05-31 |
| FR991998A (en) | 1951-10-12 |
| US2658128A (en) | 1953-11-03 |
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