GB636454A - Improvements relating to the regulation of alternators - Google Patents
Improvements relating to the regulation of alternatorsInfo
- Publication number
- GB636454A GB636454A GB324346A GB324346A GB636454A GB 636454 A GB636454 A GB 636454A GB 324346 A GB324346 A GB 324346A GB 324346 A GB324346 A GB 324346A GB 636454 A GB636454 A GB 636454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alternators
- regulator
- characteristic
- bridge
- transformer
- 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
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
636,454. Automatic control systems. STONE & CO., Ltd., J., and CHAPMAN, E. E. Aug. 1, 1946, No. 3243. [Class 38 (iv)] In an arrangement for regulating alternators, having an electromagnetically actuated moving system, such as a carbon pile regulator, the regulator is inherently astatic and is influenced by currents proportional to the voltage and also the load current of the alternator which tend to produce a static voltage/load characteristic which characteristic is corrected to provide a constant voltage output at a given power factor by introducing a third current which is dependent upon the power factor of the load current. The characteristics of static and astatic regulators are discussed. The arrangement is especially applicable to systems of alternators connected in parallel. In Fig. 1, the main winding W of a carbon pile regulator is connected between two of the three lines A, B, C from the alternator through a rectifying bridge D1. A transformer T1 connected in line C applies an additional rectified current through bridge D2 to winding W, which is proportional to the load current. In order to avoid the resulting droop of the alternator load characteristic, an additional transformer T2 is used to supply a voltage which depends on the power factor, to the A.C. side of bridge D1. The variable resistors R1, R2 and R3 are adjusted to provide a constant voltage characteristic at a given power factor, and the arrangement is then such that a rising (or falling) characteristic is provided at other power factors by the action of the regulator. When applied to a number of alternators connected in parallel, the arrangement provides for the various power factors to be equal. Alternative arrangements in which bridge D2 is arranged to supply an additional coil for the regulator, or for both voltages to be obtained from one transformer are also described. In the case of single phase alternators, or two phase three-wire alternators, phase adjusting means may be provided in the transformer secondary circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB324346A GB636454A (en) | 1946-08-01 | 1946-08-01 | Improvements relating to the regulation of alternators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB324346A GB636454A (en) | 1946-08-01 | 1946-08-01 | Improvements relating to the regulation of alternators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB636454A true GB636454A (en) | 1950-05-03 |
Family
ID=9754652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB324346A Expired GB636454A (en) | 1946-08-01 | 1946-08-01 | Improvements relating to the regulation of alternators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB636454A (en) |
-
1946
- 1946-08-01 GB GB324346A patent/GB636454A/en not_active Expired
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