GB211158A - - Google Patents
Info
- Publication number
- GB211158A GB211158A GB353624A GB353624A GB211158A GB 211158 A GB211158 A GB 211158A GB 353624 A GB353624 A GB 353624A GB 353624 A GB353624 A GB 353624A GB 211158 A GB211158 A GB 211158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- short
- thermal
- currents
- circuiting
- 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
- H01H71/121—Protection of release mechanisms
Landscapes
- Resistance Heating (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
211,158. Voigt & Haeffner Akt.-Ges. Feb. 10, 1923, [Convention date]. Switches, partly electromagnetic; thermal switches. -In a switch which is normally operated by the expansion of a thermal element through which the excess current flows, very heavv short-circuit currents which would fuse the thermal element cause the electromagnetic attraction of an armature and the consequent short-circuiting of the thermal element, while, at the same time, the armature operates the switch to the off position. In the arrangement shown, normal excess currents cause the expansion of the current-carrying element a which presses upon the lever h pivoted at g and allows the contact-member f to assume the off position. Very heavy currents magnetize the core b surrounding the element a and attract the armature c thereby short-circuiting the element a through the shunt e and at the same time acting through the link k to break the circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV18739D DE400499C (en) | Hot wire relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB211158A true GB211158A (en) | 1924-09-11 |
Family
ID=7577336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB353624A Expired GB211158A (en) | 1924-02-11 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE400499C (en) |
| GB (1) | GB211158A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673263A (en) * | 1951-05-18 | 1954-03-23 | Gen Electric | Thermomagnetic electric relay |
| US2716679A (en) * | 1954-05-11 | 1955-08-30 | Wadsworth Electric Mfg Co | Circuit breaker |
| US2810803A (en) * | 1952-12-08 | 1957-10-22 | Frank Adam Electric Co | Circuit breakers |
| US2813946A (en) * | 1954-03-01 | 1957-11-19 | Cutler Hammer Inc | Circuit breakers |
| CN102347174A (en) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | Shunting method of circuit breaker |
-
0
- DE DEV18739D patent/DE400499C/en not_active Expired
-
1924
- 1924-02-11 GB GB353624A patent/GB211158A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673263A (en) * | 1951-05-18 | 1954-03-23 | Gen Electric | Thermomagnetic electric relay |
| US2810803A (en) * | 1952-12-08 | 1957-10-22 | Frank Adam Electric Co | Circuit breakers |
| US2813946A (en) * | 1954-03-01 | 1957-11-19 | Cutler Hammer Inc | Circuit breakers |
| US2716679A (en) * | 1954-05-11 | 1955-08-30 | Wadsworth Electric Mfg Co | Circuit breaker |
| CN102347174A (en) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | Shunting method of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE400499C (en) | 1924-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB211158A (en) | ||
| GB483204A (en) | Improvements in or relating to electric switches having an automatic overload release or tripping device | |
| GB268329A (en) | Improvements in and relating to electric circuit makers and interrupters | |
| GB363437A (en) | Improvements in and relating to electric circuit interrupting systems | |
| GB1090456A (en) | Miniature electric circuit-breakers | |
| GB260272A (en) | Improvements in and relating to under-voltage time-element electro-responsive devices | |
| GB533169A (en) | Improvements in and relating to fluid-pressure actuated electric switches | |
| GB196305A (en) | Improvements in and relating to electric relays and the like | |
| GB266010A (en) | Improvements in automatic quick acting circuit breaking devices | |
| GB494395A (en) | Improvements in and relating to current limiting devices | |
| GB601088A (en) | Improvements in and relating to overload relays | |
| GB181778A (en) | Improvements in electric switches | |
| GB426127A (en) | Improvements in and relating to electric overload release mechanisms | |
| GB168849A (en) | Improvements in or relating to automatic electric circuit breakers | |
| DE604216C (en) | Automatic switch with zero-voltage coil acting on the trip-free switch lock | |
| GB357369A (en) | Improvements in automatic electric circuit-breakers | |
| GB195340A (en) | Improvements in or relating to direct current circuit breakers | |
| GB377569A (en) | An improved electric switch more especially designed for use in automatically actuated switching apparatus | |
| GB478853A (en) | Improvements in thermo-electric relays | |
| GB199526A (en) | Improvements in automatic circuit breakers | |
| GB368978A (en) | Improvements relating to control apparatus such as contactors and circuit breakers for alternating and direct electric current systems | |
| GB175965A (en) | Improvements in electromagnetic overload circuit-breakers | |
| GB449248A (en) | Improvements in and relating to electro-magnetically operated overload switches | |
| GB496415A (en) | Improvements in and relating to remote-control switches for alternating currents | |
| GB212647A (en) | Improvements in and relating to protective devices for dynamo electric machines |