GB378147A - Improvements in electrical systems for the exctation of dynamo electric machines - Google Patents
Improvements in electrical systems for the exctation of dynamo electric machinesInfo
- Publication number
- GB378147A GB378147A GB1805431A GB1805431A GB378147A GB 378147 A GB378147 A GB 378147A GB 1805431 A GB1805431 A GB 1805431A GB 1805431 A GB1805431 A GB 1805431A GB 378147 A GB378147 A GB 378147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exciters
- rheostat
- generators
- motor
- excitation
- 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
- 230000005284 excitation Effects 0.000 abstract 3
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 Multiple Motors (AREA)
- Control Of Charge By Means Of Generators (AREA)
Abstract
378,147. Control of D.C. motors. JOHNSON, E. M., 33, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 22, 1931, No. 18054. [Class 38 (iii).] The excitation current for the motor 1 and generators 3, 4 of a Ward-Leonard marine propulsion system is furnished by an exciter 14, which may be separately or self excited and driven by a motor 13 or a prime mover. Adjustment of a rheostat 16 causes variation in the excitation of the motor, but the simultaneous adjustment of an interlocked rheostat 17 counteracts the variation of voltage appearing at the bushes of the exciter 14, so that substantially constant excitation is supplied to exciters 9, 10 supplying the fields of the generators. A Ward-Leonard controller 18 is interposed in the supply to the exciters 9, 10. The exciters 9, 10 can be replaced by a single machine, and the rheostat 17 can be adjusted to suit the number of generators in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1805431A GB378147A (en) | 1931-06-22 | 1931-06-22 | Improvements in electrical systems for the exctation of dynamo electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1805431A GB378147A (en) | 1931-06-22 | 1931-06-22 | Improvements in electrical systems for the exctation of dynamo electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB378147A true GB378147A (en) | 1932-08-11 |
Family
ID=10105835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1805431A Expired GB378147A (en) | 1931-06-22 | 1931-06-22 | Improvements in electrical systems for the exctation of dynamo electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB378147A (en) |
-
1931
- 1931-06-22 GB GB1805431A patent/GB378147A/en not_active Expired
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