GB181265A - Improvements in and relating to electric motor controllers - Google Patents
Improvements in and relating to electric motor controllersInfo
- Publication number
- GB181265A GB181265A GB2134721A GB2134721A GB181265A GB 181265 A GB181265 A GB 181265A GB 2134721 A GB2134721 A GB 2134721A GB 2134721 A GB2134721 A GB 2134721A GB 181265 A GB181265 A GB 181265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- limit
- time
- starters
- contactors
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
- H02P1/20—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor by progressive reduction of resistance in series with armature winding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Relay Circuits (AREA)
Abstract
181,265. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Aug. 11, 1921. Automatic starters. - In motor-starters of the sequentially-acting electromagnetic contactor type, the current limit and time-limit intervals between successive contactors are controlled by one or more automatic relays 5, 6, 7 permanently biassed to their operative positions and each having a winding 11 connected to the motor circuit and a short-circuited winding 13 mounted on a separate limb of the magnetic core and inductively related to the winding 11. During the period of rising current immediately after closing a main switch 1, the induced effect in the shortcircuited winding increases the force with which the core holds up a contact-carrying armature 9 and thus virtually adds a time-limit delay to the winding 11. The fall of the armature brings the winding of the next contactor into circuit, and the action is repeated to the end of the sequence. In a modification, a single time and current limit relay controls all the contactors of a group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2134721A GB181265A (en) | 1921-08-11 | 1921-08-11 | Improvements in and relating to electric motor controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2134721A GB181265A (en) | 1921-08-11 | 1921-08-11 | Improvements in and relating to electric motor controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB181265A true GB181265A (en) | 1922-06-15 |
Family
ID=10161346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2134721A Expired GB181265A (en) | 1921-08-11 | 1921-08-11 | Improvements in and relating to electric motor controllers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB181265A (en) |
-
1921
- 1921-08-11 GB GB2134721A patent/GB181265A/en not_active Expired
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