GB515414A - Improvements in and relating to electric relays - Google Patents
Improvements in and relating to electric relaysInfo
- Publication number
- GB515414A GB515414A GB6428/38A GB642838A GB515414A GB 515414 A GB515414 A GB 515414A GB 6428/38 A GB6428/38 A GB 6428/38A GB 642838 A GB642838 A GB 642838A GB 515414 A GB515414 A GB 515414A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- relay
- march
- coil
- operates
- 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
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
Abstract
515,414. Electromagnetic relays. BRITISH THOMSON-HOUSTON CO., Ltd.. March 1, 1938, No. 6428. Void. Convention date, March 2, 1937. [Class 38 (v)] When a relay 3 operates, a previcusly short-circuited regulable resistance 4 is Inserted in series with it, the value of the resistance being so chosen that the relay will "release" at substantially the same voltage or current at which it " picked up." The relay possesses contacts 5 which normally short-circuit the resistance 4 and any number of other contacts such as 6 for controlling other circuits. A condenser 7, which may be varied simultaneously with the varying of the resistance 4, is also connected in parallel with the coil 3 and serves momentarily to balance the loss of current through the coil 3 when the relay operates and the resistance 4 is first inserted, thus assuring reliable operation of the relay.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE515414X | 1937-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515414A true GB515414A (en) | 1939-12-04 |
Family
ID=6548965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6428/38A Expired GB515414A (en) | 1937-03-02 | 1938-03-01 | Improvements in and relating to electric relays |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2928027A (en) * | 1956-08-10 | 1960-03-08 | Cutler Hammer Inc | Electric circuit for direct current electromagnetic contactors |
| FR2607318A1 (en) * | 1986-11-26 | 1988-05-27 | Toshiba Kk | RELAY, COOKING APPARATUS PROVIDED WITH SUCH RELAY, AND ENERGY SAVING METHOD RELATING THERETO |
-
1938
- 1938-03-01 GB GB6428/38A patent/GB515414A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2928027A (en) * | 1956-08-10 | 1960-03-08 | Cutler Hammer Inc | Electric circuit for direct current electromagnetic contactors |
| FR2607318A1 (en) * | 1986-11-26 | 1988-05-27 | Toshiba Kk | RELAY, COOKING APPARATUS PROVIDED WITH SUCH RELAY, AND ENERGY SAVING METHOD RELATING THERETO |
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