GB187821A - Improvements relating to magnetic blow-out devices for use with electric circuit controlling apparatus - Google Patents
Improvements relating to magnetic blow-out devices for use with electric circuit controlling apparatusInfo
- Publication number
- GB187821A GB187821A GB2633021A GB2633021A GB187821A GB 187821 A GB187821 A GB 187821A GB 2633021 A GB2633021 A GB 2633021A GB 2633021 A GB2633021 A GB 2633021A GB 187821 A GB187821 A GB 187821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric circuit
- blow
- controlling apparatus
- magnetic blow
- improvements relating
- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Discharge Heating (AREA)
Abstract
187,821. Ellison, G., and Anderson, J. Oct. 5, 1921. Magnetic blow-outs.- A blow-out employs means for producing a radial or like magnetic field in an annular region containing fixed and movable contacts a, b adapted to separate in a direction parallel with the axis of the field, thereby driving the arc along the circular path f. To prevent damage to the iron casing c, the electromagnet e and its core d, heat resisting material h, is fitted and a barrier g prevents the are from describing a complete circle. In a double-break arrangement, Fig. 4, the two pairs of contacts are relatively near each other and the arc path is common to both pairs. If desired a rectangular arc path may be substituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2633021A GB187821A (en) | 1921-10-05 | 1921-10-05 | Improvements relating to magnetic blow-out devices for use with electric circuit controlling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2633021A GB187821A (en) | 1921-10-05 | 1921-10-05 | Improvements relating to magnetic blow-out devices for use with electric circuit controlling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB187821A true GB187821A (en) | 1922-11-02 |
Family
ID=10241965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2633021A Expired GB187821A (en) | 1921-10-05 | 1921-10-05 | Improvements relating to magnetic blow-out devices for use with electric circuit controlling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB187821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401870A (en) * | 1981-11-10 | 1983-08-30 | Hydro-Quebec | Modular suction-gas-cooled magnetic blast circuit breaker |
-
1921
- 1921-10-05 GB GB2633021A patent/GB187821A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401870A (en) * | 1981-11-10 | 1983-08-30 | Hydro-Quebec | Modular suction-gas-cooled magnetic blast circuit breaker |
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