GB196391A - Improvements relating to alternating current electric motors - Google Patents
Improvements relating to alternating current electric motorsInfo
- Publication number
- GB196391A GB196391A GB226122A GB226122A GB196391A GB 196391 A GB196391 A GB 196391A GB 226122 A GB226122 A GB 226122A GB 226122 A GB226122 A GB 226122A GB 196391 A GB196391 A GB 196391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- current
- motor
- synchronous operation
- alternating 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
- H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
196,391. Carr, L. H. A., and Metropolitan-Vickers Electrical Co., Ltd. Jan. 25, 1922. Alternating - current motors; exciting.-In an alternating-current motor adapted to start as an induction motor and to run as a synchronous motor and having its secondary member provided with a number of windings which are connected up fcr starting a n d for synchronous operation as described in Specification 158,373, the secondary windings are so connected for synchronous operation that a closed circuit independent of the source, of continuous.current excitation is formed in which damping currents can circulate, should the motor fall out of step. In the arrangement shown in Figs. 1 and 3, in which two three-phase Y- or delta-connected windings are provided on the secondary member, a starting-resistance is connected across one only of the two windings or across the two windings in parallel. For synchronous operation, the two windings A, B, C and D, E, F are connected together as shown so that damping circuits are formed independently of the source of continuous current G. In addition, the slip-rings 1, 2, 8, 9 may be connected to the slip-rings 5, 4, 12, 11 respectively. In the delta-arrangement, one or both of the windings B, F may be dispensed with since the continuous current does not pass through either of the windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB226122A GB196391A (en) | 1922-01-25 | 1922-01-25 | Improvements relating to alternating current electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB226122A GB196391A (en) | 1922-01-25 | 1922-01-25 | Improvements relating to alternating current electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB196391A true GB196391A (en) | 1923-04-25 |
Family
ID=9736426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB226122A Expired GB196391A (en) | 1922-01-25 | 1922-01-25 | Improvements relating to alternating current electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB196391A (en) |
-
1922
- 1922-01-25 GB GB226122A patent/GB196391A/en not_active Expired
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