GB756495A - Improvements relating to dynamo electric machines of the heteropolar inductor type - Google Patents
Improvements relating to dynamo electric machines of the heteropolar inductor typeInfo
- Publication number
- GB756495A GB756495A GB918554A GB918554A GB756495A GB 756495 A GB756495 A GB 756495A GB 918554 A GB918554 A GB 918554A GB 918554 A GB918554 A GB 918554A GB 756495 A GB756495 A GB 756495A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slots
- windings
- stator
- machine
- winding
- 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
- H02K47/00—Dynamo-electric converters
- H02K47/18—AC/AC converters
- H02K47/22—Single-armature frequency converters with or without phase-number conversion
- H02K47/24—Single-armature frequency converters with or without phase-number conversion having windings for different numbers of poles
Abstract
756,495. inductor machines. SELECTRA, Ltd., and KREBS, E. W. March 14, 1955 [March 29, 1954], No. 9185/54. Class 35. In an inductor-type motor, generator or converter having S1 stator slots and S2 rotor slots, and having mutually non-inductive stator windings wound for P1 and P2 pole-pairs respectively, the number of rotor slots S2, or the difference in the slot-numbers (S1-S2) or (S2-S1), is equal to P1+P2. As shown, the machine has twelve stator slots 11 carrying three-phase exciting and output windings 12, 13 wound for four and two poles respectively, the rotor having three slots 15. Thus S2 = P1 + P2. The machine may act as a three-phase alternator producing a frequency 3n where n is the rotor speed. If three-phase current is supplied to the exciting winding the machine acts as a frequency changer. If the machine is fed with A.C. and D.C. it will run as a synchronous motor. The functions of the two windings may be interchanged. For single-phase operation it is useful to excite the D.C. winding using two phases in parallel or across two phases with the other shorted, thus providing damping on the quadrature axis. A modification is described in which the two stator windings have the same pole numbers but are in quadrature to prevent mutual inductance. Alternatively the stator winding may comprise two separate star-connected windings whose phases are connected in parallel at the output terminals, the D.C. excitation being applied between the two star points. Other arrangements comprising tappings on a single winding are mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB918554A GB756495A (en) | 1954-03-29 | 1954-03-29 | Improvements relating to dynamo electric machines of the heteropolar inductor type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB918554A GB756495A (en) | 1954-03-29 | 1954-03-29 | Improvements relating to dynamo electric machines of the heteropolar inductor type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756495A true GB756495A (en) | 1956-09-05 |
Family
ID=9867041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB918554A Expired GB756495A (en) | 1954-03-29 | 1954-03-29 | Improvements relating to dynamo electric machines of the heteropolar inductor type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB756495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3714480A (en) * | 1971-12-23 | 1973-01-30 | Fiz Energet I An Latvssr | Heteropolar inductor generator |
-
1954
- 1954-03-29 GB GB918554A patent/GB756495A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3714480A (en) * | 1971-12-23 | 1973-01-30 | Fiz Energet I An Latvssr | Heteropolar inductor generator |
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