GB275208A - Improvements in and relating to electric circuit interrupters - Google Patents
Improvements in and relating to electric circuit interruptersInfo
- Publication number
- GB275208A GB275208A GB18697/27A GB1869727A GB275208A GB 275208 A GB275208 A GB 275208A GB 18697/27 A GB18697/27 A GB 18697/27A GB 1869727 A GB1869727 A GB 1869727A GB 275208 A GB275208 A GB 275208A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- switch
- blow
- short
- 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)
Abstract
275,208. British Thomson-Houston Co.,. Ltd., (Assignees of Paul, W. E.). July 28, 1926, [Convention date]. Magnetic blow-outs. -The blow-out coil 16, which is included in circuit with the auxiliary contacts 14, 15 when the switch opens, is surrounded by a winding 22 which is short-circuited bv a contact 24 when the switch is closed and for a short period after the main contact 10 has opened. The winding 22 when short circuited, serves to reduce the impedance of the coil 16 and thereby prevents sparking at the main contact 10. The switch 24 opens before the auxiliary contacts 14, 15 separate and the coil 16 then exerts its full magnetic powers to blow out the arc.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US125570A US1745187A (en) | 1926-07-28 | 1926-07-28 | Circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB275208A true GB275208A (en) | 1928-03-01 |
Family
ID=22420351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18697/27A Expired GB275208A (en) | 1926-07-28 | 1927-07-14 | Improvements in and relating to electric circuit interrupters |
Country Status (3)
Country | Link |
---|---|
US (1) | US1745187A (en) |
BE (1) | BE343786A (en) |
GB (1) | GB275208A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611060A (en) * | 1945-10-20 | 1952-09-16 | Monitor Controller Co | Circuit controlling apparatus |
US2697154A (en) * | 1951-05-26 | 1954-12-14 | Westinghouse Electric Corp | Circuit interrupter |
-
0
- BE BE343786D patent/BE343786A/xx unknown
-
1926
- 1926-07-28 US US125570A patent/US1745187A/en not_active Expired - Lifetime
-
1927
- 1927-07-14 GB GB18697/27A patent/GB275208A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1745187A (en) | 1930-01-28 |
BE343786A (en) |
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