GB574155A - Improvements in and relating to electrical amplifying apparatus employing dynamo electric machines - Google Patents
Improvements in and relating to electrical amplifying apparatus employing dynamo electric machinesInfo
- Publication number
- GB574155A GB574155A GB46344A GB46344A GB574155A GB 574155 A GB574155 A GB 574155A GB 46344 A GB46344 A GB 46344A GB 46344 A GB46344 A GB 46344A GB 574155 A GB574155 A GB 574155A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- excitation
- winding
- electric machines
- current
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/28—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring using magnetic devices with controllable degree of saturation, e.g. transductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
574,155. Exciting dynamo-electric machines. FLETCHER, G. H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 10, 1944, No. 463. [Class 35] The excitation of a metadyne which may act as the exciter of a main machine comprises components depending on desired variable quantities, the effect of which is determined by one or more impedances having non-linear current-voltage characteristics. In the form shown, the excitation of windings 10 and 12 of the metadyne 1 varies with the current and voltage respectively of main motor 2, the winding 10 being connected across motor interpole winding 14, and non-linear impedances 15, 18 are connected in their circuits and these windings are assisted or opposed by winding 13, the excitation of which varies With rate of change of motor current. The component produced by section 11 energized by tachometer generator 17 becomes effective as the motor reaches the limiting speed and assists sections 10, 12. Specification 568,155 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB46344A GB574155A (en) | 1944-01-10 | 1944-01-10 | Improvements in and relating to electrical amplifying apparatus employing dynamo electric machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB46344A GB574155A (en) | 1944-01-10 | 1944-01-10 | Improvements in and relating to electrical amplifying apparatus employing dynamo electric machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB574155A true GB574155A (en) | 1945-12-21 |
Family
ID=9704785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB46344A Expired GB574155A (en) | 1944-01-10 | 1944-01-10 | Improvements in and relating to electrical amplifying apparatus employing dynamo electric machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB574155A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1076795B (en) * | 1952-09-30 | 1960-03-03 | Siemens Ag | Arrangement for positive or negative excitation of synchronous machines with the help of an excitation machine and an amplifier machine |
-
1944
- 1944-01-10 GB GB46344A patent/GB574155A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1076795B (en) * | 1952-09-30 | 1960-03-03 | Siemens Ag | Arrangement for positive or negative excitation of synchronous machines with the help of an excitation machine and an amplifier machine |
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