GB260004A - Improvements in and relating to electromagnetic devices - Google Patents
Improvements in and relating to electromagnetic devicesInfo
- Publication number
- GB260004A GB260004A GB26076/26A GB2607626A GB260004A GB 260004 A GB260004 A GB 260004A GB 26076/26 A GB26076/26 A GB 26076/26A GB 2607626 A GB2607626 A GB 2607626A GB 260004 A GB260004 A GB 260004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- motor
- windings
- rate
- 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
- 238000004804 winding Methods 0.000 abstract 3
- 230000000979 retarding effect Effects 0.000 abstract 1
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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
260,004. British Thomson-Houston Co., Ltd., (Assignees of Clarkson, W. B.). Oct. 19, 1925, [Convention date]. Electromagnetic switches. - An electromagnetically operated device such as a contactor of a motor controller is provided with a movable shortcircuited coil or ring 18, Fig. 4, inductively repelled or attracted by a winding 17 which is connected to a part of the circuit subject to varying current or potential in order to delay the movement of the electromagnet armature 10 until such variation is reduced to a given rate. For use in starting a motor 22, Fig. 1, two relays 27, 27a with retarding rings 18, 18<a> on the armature 10, 10<a> control accelerating contactors 25, 26, the rate-of-change windings 17, 17<a> being connected across the motor armature and acting by repulsion. In a modified arrangement the windings 17, 17<a> are connected across a section of resistance and act by attraction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US260004XA | 1925-10-19 | 1925-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB260004A true GB260004A (en) | 1927-06-16 |
Family
ID=21829269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26076/26A Expired GB260004A (en) | 1925-10-19 | 1926-10-19 | Improvements in and relating to electromagnetic devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB260004A (en) |
-
1926
- 1926-10-19 GB GB26076/26A patent/GB260004A/en not_active Expired
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