GB647681A - Improvements in and relating to dynamo electric machines - Google Patents
Improvements in and relating to dynamo electric machinesInfo
- Publication number
- GB647681A GB647681A GB1882048A GB1882048A GB647681A GB 647681 A GB647681 A GB 647681A GB 1882048 A GB1882048 A GB 1882048A GB 1882048 A GB1882048 A GB 1882048A GB 647681 A GB647681 A GB 647681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- circuited
- rectifier
- short
- axis
- 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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
- H02P1/50—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by changing over from asynchronous to synchronous operation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Synchronous Machinery (AREA)
Abstract
647,681. Synchronous motors. BRITISH THOMSON - HOUSTON CO., Ltd., and CHOUDHURY, S. U. A. July 13, 1948, No. 18820. [Class 35] [Also in Group XXXVII] The rotor windings of a synchronous induction motor are short-circuited or connected through resistances on one axis and energized through a rectifier on the quadrature axis. In the form shown for a small three-phase motor, the rotor winding 2 is short-circuited at E, F and supplied with D.C. on the other axis by a rectifier 7 and transformer 8, which may be tapped, fed from the mains supply. A condenser 9 is connected across the rectifier. The rotor winding may be mesh or star-connected and may comprise only two phases, one of which is shorted and the other supplied with D.C. In larger machines the rotor terminals are connected through resistances which may be external so that tappings can be used or incorporated in the rotor coils where these are short-circuited on themselves as in the two-phase rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1882048A GB647681A (en) | 1948-07-13 | 1948-07-13 | Improvements in and relating to dynamo electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1882048A GB647681A (en) | 1948-07-13 | 1948-07-13 | Improvements in and relating to dynamo electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB647681A true GB647681A (en) | 1950-12-20 |
Family
ID=10118964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1882048A Expired GB647681A (en) | 1948-07-13 | 1948-07-13 | Improvements in and relating to dynamo electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB647681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825138A (en) * | 1986-07-10 | 1989-04-25 | Dipl. Ing. Hitzinger Gesellschaft Mbh | Brushless synchronous motor with short-circuited protective winding for the field winding of the rotor |
-
1948
- 1948-07-13 GB GB1882048A patent/GB647681A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825138A (en) * | 1986-07-10 | 1989-04-25 | Dipl. Ing. Hitzinger Gesellschaft Mbh | Brushless synchronous motor with short-circuited protective winding for the field winding of the rotor |
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