GB515303A - Improvements in and relating to electric motor control systems - Google Patents
Improvements in and relating to electric motor control systemsInfo
- Publication number
- GB515303A GB515303A GB1235538A GB1235538A GB515303A GB 515303 A GB515303 A GB 515303A GB 1235538 A GB1235538 A GB 1235538A GB 1235538 A GB1235538 A GB 1235538A GB 515303 A GB515303 A GB 515303A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potentiometer
- field
- voltage
- source
- motors
- 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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
515,303. Field control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and FOX, K. M. April 25, 1938, No. 12355. [Class 38 (iii)] The field 4 of a motor 1 is fed from a potentiometer resistance 5 in circuit with which is a variable voltage source 6 by adjustment of which the variation of voltage applied to the field effected by a given movement of the potentiometer 5 can be made of any desired value. The invention is applicable particularly to multimotor drives in which the motors 1 are fed from a variable voltage source 2, 3, the regulator 10 for the field 11 of a generator 6 connected in circuit with the potentiometer 9 across a constant potential source 7, 8 being adjusted to give low voltage across the potentiometer when the motor speed is high and a higher voltage when the motor speed is low. Thus for a given adjustment of the potentiometer, a smaller charge in the voltage applied to the motor field is effected at high speed than at low speed. The generator 6 may be replaced by a variable resistance and may be common to a number of motors. The constant voltage source 7, 8 may be constituted by the source 2, 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1235538A GB515303A (en) | 1938-04-25 | 1938-04-25 | Improvements in and relating to electric motor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1235538A GB515303A (en) | 1938-04-25 | 1938-04-25 | Improvements in and relating to electric motor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515303A true GB515303A (en) | 1939-12-01 |
Family
ID=10002992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1235538A Expired GB515303A (en) | 1938-04-25 | 1938-04-25 | Improvements in and relating to electric motor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515303A (en) |
-
1938
- 1938-04-25 GB GB1235538A patent/GB515303A/en not_active Expired
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