GB542248A - Improved speed control system for a multi-engine power plant for the electric propulsion of moving craft - Google Patents
Improved speed control system for a multi-engine power plant for the electric propulsion of moving craftInfo
- Publication number
- GB542248A GB542248A GB1170740A GB1170740A GB542248A GB 542248 A GB542248 A GB 542248A GB 1170740 A GB1170740 A GB 1170740A GB 1170740 A GB1170740 A GB 1170740A GB 542248 A GB542248 A GB 542248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- generator
- speed
- auxiliary
- differential
- machine
- 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
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
542,248. Transmitting mechanical power ; automatic control systems for prime movers; governors. BRITISH THOMSON-HOUSTON CO., Ltd., JEWITT, D. E., and CALDERWOOD, J. July 15, 1940, No. 11707. Drawings to Specification. [Class 38 (iv)] [Also in Group XXVI] Speed control.-A number of A.C. generators supplying current to one or more motors driving a moving craft are jointly controlled in speed by an auxiliary A.C. generator and the speed of the auxiliary machine is made dependent on load variations to produce a drooping load-speed characteristic of the plant. The fuel admission valve of each of the prime movers is adjusted by a differential A.C. dynamo-electric machine one element being energized by the output of its generator or of a generator driven by the same prime mover and the other element being energized from the auxiliary A.C. generator, which is preferably driven by a D.C. motor with adjustable excitation. A further differential A.C. dynamo-electric machine energized from the output of the main generators and from the auxiliary A.C. generator adjusts a field rheostat of the D.C. motor to cause its speed to fall off when the loading produces a fall in frequency in the main generators. Excessive speed of each generator is prevented by a centrifugal governor operating through a lost motion on linkage connecting its differential machine with the admission valve to cause it to close. Each valve is adjustably coupled to its differential machine to determine individual loading of the main generators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1170740A GB542248A (en) | 1940-07-15 | 1940-07-15 | Improved speed control system for a multi-engine power plant for the electric propulsion of moving craft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1170740A GB542248A (en) | 1940-07-15 | 1940-07-15 | Improved speed control system for a multi-engine power plant for the electric propulsion of moving craft |
Publications (1)
Publication Number | Publication Date |
---|---|
GB542248A true GB542248A (en) | 1942-01-01 |
Family
ID=9991207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1170740A Expired GB542248A (en) | 1940-07-15 | 1940-07-15 | Improved speed control system for a multi-engine power plant for the electric propulsion of moving craft |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB542248A (en) |
-
1940
- 1940-07-15 GB GB1170740A patent/GB542248A/en not_active Expired
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