GB408027A - Improvements in and relating to means for compensating for residual magnetism in ward leonard control systems - Google Patents
Improvements in and relating to means for compensating for residual magnetism in ward leonard control systemsInfo
- Publication number
- GB408027A GB408027A GB28748/32A GB2874832A GB408027A GB 408027 A GB408027 A GB 408027A GB 28748/32 A GB28748/32 A GB 28748/32A GB 2874832 A GB2874832 A GB 2874832A GB 408027 A GB408027 A GB 408027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- generator
- field
- supply
- residual magnetism
- compensating
- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/12—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
- H02P9/123—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
408,027. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Goldberg, L. J. ; 1068, Maryland Avenue, Schenectady, New York, U.S.A.) Oct. 14, 1932, No. 28748. Convention date, Oct. 15, 1931. [Class 38 (iii).] Varying E.M.F.-In a Ward Leonard system, the residual magnetism of the generator is compensated by means of an auxiliary generator 24 having opposed field windings 25 and 26, 27, energized respectively by the voltages across the armature 10, and field windings 12, 18, of the main generator. The auxiliary generator may supply an additional field 28 on the main generator, or it may be connected in the series circuit of the main generator and the driving motor 13. Alternatively, the auxiliary generator may supply a corrective field on the driving motor 13, or it may supply a torque motor which regulates resistance in the circuit of the field 18 of the main generator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US408027XA | 1931-10-15 | 1931-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB408027A true GB408027A (en) | 1934-04-05 |
Family
ID=21913042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28748/32A Expired GB408027A (en) | 1931-10-15 | 1932-10-14 | Improvements in and relating to means for compensating for residual magnetism in ward leonard control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB408027A (en) |
-
1932
- 1932-10-14 GB GB28748/32A patent/GB408027A/en not_active Expired
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