GB644867A - Improvements relating to dynamo electric machines - Google Patents
Improvements relating to dynamo electric machinesInfo
- Publication number
- GB644867A GB644867A GB1093547A GB1093547A GB644867A GB 644867 A GB644867 A GB 644867A GB 1093547 A GB1093547 A GB 1093547A GB 1093547 A GB1093547 A GB 1093547A GB 644867 A GB644867 A GB 644867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exciter
- generator
- main
- bridge
- resistance
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/34—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using Ward-Leonard arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
644,867. Automatic regulation ; exciting dynamos. ENGLISH ELECTRIC CO., Ltd. April 24, 1947, No. 10935. [Classes 35 and 38 (iv)] An unsaturated generator which is mainly self-excited and supplies a load comprising resistance variable with temperature has its excitation varied automatically in accordance with the resistance changes of the load so as to maintain a straight line characteristic of the generator. As shown, the exciting windings 41, 42 of the exciter 4 of the Ward-Leonard generator 2 are connected in a bridge circuit with resistances 41, 42 of negligible temperature coefficient and are fed by sub-exciter 5 which has. field winding 53 connected across the bridge and main excitation furnished by shunt coil 54, series coil 52 or both, a further field winding 51 aiding or opposing is connected to potentiometer 59 as shown and to resistance across the main generator. A similar bridge is provided for the sub-exciter 3 of the main motor 1, 6 being the motor exciter. Specification 644,911 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1093547A GB644867A (en) | 1947-04-24 | 1947-04-24 | Improvements relating to dynamo electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1093547A GB644867A (en) | 1947-04-24 | 1947-04-24 | Improvements relating to dynamo electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB644867A true GB644867A (en) | 1950-10-18 |
Family
ID=9977012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1093547A Expired GB644867A (en) | 1947-04-24 | 1947-04-24 | Improvements relating to dynamo electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB644867A (en) |
-
1947
- 1947-04-24 GB GB1093547A patent/GB644867A/en not_active Expired
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