GB199526A - Improvements in automatic circuit breakers - Google Patents
Improvements in automatic circuit breakersInfo
- Publication number
- GB199526A GB199526A GB994722A GB994722A GB199526A GB 199526 A GB199526 A GB 199526A GB 994722 A GB994722 A GB 994722A GB 994722 A GB994722 A GB 994722A GB 199526 A GB199526 A GB 199526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breaker
- failure
- operate
- electrically
- air gap
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
199,526. Crompton & Co., Ltd., and Jones, W. F. April 7, 1922. Electrically - t r i p p e d switches; electromagnetic actuation. - Relates to tripping devices for automatic circuit-breakers opened either by excess current or by lowering or failure of the supply voltage. The device may operate the breaker either mechanically or electrically by closing another switch and may also be either fitted on the breaker or at a distance from it and to a connection thereof. Figs. 1 and 2 show its application to a current-carrying stub B of a switch frame A, wherein D is a fixed part of an iron or steel split sleeve having a movable, part E pivoted to it at F so as to leave a small air gap. On overload, the movable part E is moved to close the air gap operating the breaker through the rod K. In a no-volt arrangement, the sleeve would be held closed, but on failure of the supply pressure would be separated to operate the breaker. Spring means are provided to restore the gear and to prevent gradual closure by vibration due to alternating currents and other causes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB994722A GB199526A (en) | 1922-04-07 | 1922-04-07 | Improvements in automatic circuit breakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB994722A GB199526A (en) | 1922-04-07 | 1922-04-07 | Improvements in automatic circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB199526A true GB199526A (en) | 1923-06-28 |
Family
ID=9881710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB994722A Expired GB199526A (en) | 1922-04-07 | 1922-04-07 | Improvements in automatic circuit breakers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB199526A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458151A (en) * | 1941-06-24 | 1949-01-04 | Westinghouse Electric Corp | Circuit breaker |
-
1922
- 1922-04-07 GB GB994722A patent/GB199526A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458151A (en) * | 1941-06-24 | 1949-01-04 | Westinghouse Electric Corp | Circuit breaker |
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