GB537410A - Improvements in or relating to electric circuit-breakers - Google Patents
Improvements in or relating to electric circuit-breakersInfo
- Publication number
- GB537410A GB537410A GB3248539A GB3248539A GB537410A GB 537410 A GB537410 A GB 537410A GB 3248539 A GB3248539 A GB 3248539A GB 3248539 A GB3248539 A GB 3248539A GB 537410 A GB537410 A GB 537410A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shoot
- sets
- contact
- contacts
- arc
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
537,410. Air-break switches; arc-rupturing in switches. REYROLLE & CO., Ltd., A., and ROBERTSON, A. T. Dec. 19, 1939, No. 32485. [Class 38 (v)] . An air circuit-breaker having parallel - connected sets of load-current carrying butt contacts, preferably all similar, has only one set provided with an arc shoot and arranged to make contact before, and break contact after. the other set or sets. Thus a narrower shoot and a more concentrated magnetic blow-out field can be employed, than in the case of a shoot extending over all the sets. For a range of breakers of given voltage and maximum rupturing capacity, the number of sets used depends on the normal load, numerical examples being given in the Specification. In Fig. 1, a number of contacts C, arranged one behind the other, are each mounted on a carrier D pivoted at B' to the base B and at D' to a common operating bracket E. For the necessary sequence of operation, the fixed contact A of the set associated with the shoot G projects further from the base, the contacts C being all capable of pivoting about D<2> against resilient pressure, for example as described in Specification 536,693, in which uniform contact pressure is obtained as the carriers move beyond their initial contact-making position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3248539A GB537410A (en) | 1939-12-19 | 1939-12-19 | Improvements in or relating to electric circuit-breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3248539A GB537410A (en) | 1939-12-19 | 1939-12-19 | Improvements in or relating to electric circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB537410A true GB537410A (en) | 1941-06-20 |
Family
ID=10339300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3248539A Expired GB537410A (en) | 1939-12-19 | 1939-12-19 | Improvements in or relating to electric circuit-breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB537410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082321B (en) * | 1955-07-27 | 1960-05-25 | Merlin Gerin | Air switch with magnetic fan |
-
1939
- 1939-12-19 GB GB3248539A patent/GB537410A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082321B (en) * | 1955-07-27 | 1960-05-25 | Merlin Gerin | Air switch with magnetic fan |
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