GB180249A - Improvements in and relating to control of electric motors - Google Patents
Improvements in and relating to control of electric motorsInfo
- Publication number
- GB180249A GB180249A GB2147421A GB2147421A GB180249A GB 180249 A GB180249 A GB 180249A GB 2147421 A GB2147421 A GB 2147421A GB 2147421 A GB2147421 A GB 2147421A GB 180249 A GB180249 A GB 180249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contactor
- control
- electromagnet
- short
- 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
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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor
- H02P3/12—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor by short-circuit or resistive braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
180,249. British Thomson - Houston Co., Ltd., Hastings, H. C., and Farmer, H. F. Aug. 12, 1921. Systems for continuous-current motors only; electric braking.-In order to control the strength of the field when a motor is stopped or started, a contactor 1, adapted to short-circuit a field rheostat 8, is automatically operated by an electromagnet 2 connected in series with themotor armature 7. The winding of the electromagnet is short-circuited when the last accelerating contactor 3 is closed. A condenser 5 serves to prevent sparking at the contactor terminals. In a modification, similar functions are provided for in dynamic braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2147421A GB180249A (en) | 1921-08-12 | 1921-08-12 | Improvements in and relating to control of electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2147421A GB180249A (en) | 1921-08-12 | 1921-08-12 | Improvements in and relating to control of electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB180249A true GB180249A (en) | 1922-05-25 |
Family
ID=10163546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2147421A Expired GB180249A (en) | 1921-08-12 | 1921-08-12 | Improvements in and relating to control of electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB180249A (en) |
-
1921
- 1921-08-12 GB GB2147421A patent/GB180249A/en not_active Expired
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