GB496897A - Improvements in and relating to systems of electric motor control - Google Patents
Improvements in and relating to systems of electric motor controlInfo
- Publication number
- GB496897A GB496897A GB1601537A GB1601537A GB496897A GB 496897 A GB496897 A GB 496897A GB 1601537 A GB1601537 A GB 1601537A GB 1601537 A GB1601537 A GB 1601537A GB 496897 A GB496897 A GB 496897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exciter
- field
- excitation
- dynamic braking
- normal running
- 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
- H02P3/18—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 an ac motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
496,897. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and ANSCOMBE, L. D. June 9, 1937, No. 16015. [Class 38 (iii)] Dynamo-electric bracking.- The field e of a synchronous motor is supplied from an exciter d separately driven from the alternating current supply, and for normal running the excitation of the exciter is reduced to give normal excitation of the motor, while for dynamic braking the excitation of the exciter is restored to its full value so that the motor is over-excited. The field of the exciter d may be supplied from a second exciter c through a resistance b which is in circuit for normal running and cut out by means of a switch a for dynamic braking. In a modification the exciter d has a shunt field and an opposing separately excited field, the latter being energized for normal running but disconnected for dynamic braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1601537A GB496897A (en) | 1937-06-09 | 1937-06-09 | Improvements in and relating to systems of electric motor control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1601537A GB496897A (en) | 1937-06-09 | 1937-06-09 | Improvements in and relating to systems of electric motor control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496897A true GB496897A (en) | 1938-12-08 |
Family
ID=10069633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1601537A Expired GB496897A (en) | 1937-06-09 | 1937-06-09 | Improvements in and relating to systems of electric motor control |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB496897A (en) |
-
1937
- 1937-06-09 GB GB1601537A patent/GB496897A/en not_active Expired
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