GB269684A - Improvements in and relating to electric motor control systems - Google Patents
Improvements in and relating to electric motor control systemsInfo
- Publication number
- GB269684A GB269684A GB226326A GB226326A GB269684A GB 269684 A GB269684 A GB 269684A GB 226326 A GB226326 A GB 226326A GB 226326 A GB226326 A GB 226326A GB 269684 A GB269684 A GB 269684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- generator
- resistance
- motors
- relating
- electric motor
- 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
- H02P5/685—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 electrically connected in series, i.e. carrying the same current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
269,684. British Thomson-Houston Co., Ltd., and Jewitt, D. E. Jan. 26, 1926. Dynamos and motors combined for transmitting power. - In ship-propulsion systems having one or more motors in series with a generator automatically regulated for constant current, as in Specification 226,960, an energy absorbing resistance BR is arranged to be shunted across the generator by a polarized relay PR. The relay responds when the generator voltage has fallen to zero, and the resistance remains in shunt taking an increasing proportion of the braking current as the generator voltage is built up in the reversed direction. Curves showing the variation of braking energy under different conditions are given to illustrate the invention. For systems using turbines or other steam engines a value of resistance capable of carrying 35 per cent of the full load current is recommended. Specification 267,659 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB226326A GB269684A (en) | 1926-01-26 | 1926-01-26 | Improvements in and relating to electric motor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB226326A GB269684A (en) | 1926-01-26 | 1926-01-26 | Improvements in and relating to electric motor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB269684A true GB269684A (en) | 1927-04-26 |
Family
ID=9736466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB226326A Expired GB269684A (en) | 1926-01-26 | 1926-01-26 | Improvements in and relating to electric motor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB269684A (en) |
-
1926
- 1926-01-26 GB GB226326A patent/GB269684A/en not_active Expired
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