GB128082A - Improvements in and relating to Electric Motor Control Systems. - Google Patents
Improvements in and relating to Electric Motor Control Systems.Info
- Publication number
- GB128082A GB128082A GB1486118A GB1486118A GB128082A GB 128082 A GB128082 A GB 128082A GB 1486118 A GB1486118 A GB 1486118A GB 1486118 A GB1486118 A GB 1486118A GB 128082 A GB128082 A GB 128082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contactor
- current
- spring
- motor
- 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 Multiple Motors (AREA)
Abstract
128,082. British Thomson - Houston Co., (General Electric Co.). Sept. 12, 1918. Systems for continuous-current motors only.- In a motor-control system with electro-magnetic contactors held open by the motor current when it is above a predetermined value, means independent of the windings are employed to give the contactors a closing tendency which will overcome the holding-out force when the current drops to the predetermined value. In the arrangement shown, the circuit of the motor A<1> is controlled by a main switch A and resistance con. tactors B, C. The contactors B, C have current coils 13 and are held open by the force between the arms 14 and the pole-pieces 20. When the switch 12 is closed, the switch 11 is operated to close the motor circuit through the resistances R, R<1>. As the spring-pressed contact 24 on the arm 11 wipes its fixed contact the spring 21 is stretched and tends to close the contactor B. When the current drops to the proper value, the spring overcomes the holding-out force and closes the contactor to short-circuit the resistance R. The contactor is held closed by the force between the arm 14 and pole-piece 19. During the closing of the contactor B, the spring 25 is stretched and the contactor C closes when the current drops. Specifications 11350/11 and 23544/14, [Class 38 (v), Electric switches &c.], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1486118A GB128082A (en) | 1918-09-12 | 1918-09-12 | Improvements in and relating to Electric Motor Control Systems. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1486118A GB128082A (en) | 1918-09-12 | 1918-09-12 | Improvements in and relating to Electric Motor Control Systems. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB128082A true GB128082A (en) | 1919-06-19 |
Family
ID=32346574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1486118A Expired GB128082A (en) | 1918-09-12 | 1918-09-12 | Improvements in and relating to Electric Motor Control Systems. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB128082A (en) |
-
1918
- 1918-09-12 GB GB1486118A patent/GB128082A/en not_active Expired
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