GB519662A - Improvements in or relating to dynamo-electric generators - Google Patents
Improvements in or relating to dynamo-electric generatorsInfo
- Publication number
- GB519662A GB519662A GB30373/38A GB3037338A GB519662A GB 519662 A GB519662 A GB 519662A GB 30373/38 A GB30373/38 A GB 30373/38A GB 3037338 A GB3037338 A GB 3037338A GB 519662 A GB519662 A GB 519662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- portions
- gaps
- tips
- trailing
- 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
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
- H02K23/44—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits having movable, e.g. turnable, iron parts
Abstract
519,662. Exciting dynamos; pole-pieces. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Oct. 20, 1938, No. 30373. Convention date, Nov. 27, 1937. Addition to 519,629. [Class 35] A generator of the crossfield type, as in the parent Specification, has its field poles so disposed as to give air-gaps of non-uniform reluctance which prevent the excitation from the auxiliary continuouscurrent source from increasing the no-load current. Fig. 1 shows a machine in which the gaps are widened from the leading pole-tips 30 to the trailing tips 29 (rotation being counter-clockwise). The auxiliary excitation source 20 is connected through a reversing switch 24, for reversing the machine polarity, to the commutating and series coils 21, 23 and 17, 19. Magnetic shunts 51, with damping coils 54, are held pivotally on the pole-piece 27 by bolts 56 and springs 57 and are adjusted by means of a threaded shaft 58, In the form shown in Fig. 2, the graded gap reluctance is obtained by forming the pole-shoes with two portions 67, 70 concentric with the armature but of different radii so as to. give a shorter gap under the leading portions 73 and a longer gap under the trailing portions 75 of the poles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US519662XA | 1937-11-27 | 1937-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB519662A true GB519662A (en) | 1940-04-02 |
Family
ID=21974517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30373/38A Expired GB519662A (en) | 1937-11-27 | 1938-10-20 | Improvements in or relating to dynamo-electric generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB519662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1073603B (en) * | 1960-01-21 | "Elin" Aktiengesellschaft für elektrische Industrie, Wien | Arc welding generator with a pole system which is independent of the main poles and is excited by the welding current, with low magnetic inertia |
-
1938
- 1938-10-20 GB GB30373/38A patent/GB519662A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1073603B (en) * | 1960-01-21 | "Elin" Aktiengesellschaft für elektrische Industrie, Wien | Arc welding generator with a pole system which is independent of the main poles and is excited by the welding current, with low magnetic inertia |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2193406A (en) | Dynamo-electric machine | |
| US794998A (en) | Dynamo-electric machine. | |
| GB385470A (en) | Improvements in and relating to electric motors | |
| GB519662A (en) | Improvements in or relating to dynamo-electric generators | |
| US919458A (en) | Field-pole for dynamo-electric machines. | |
| US2308279A (en) | Dynamoelectric machine | |
| GB691620A (en) | Improvements in and relating to dynamo electric machines | |
| US2256239A (en) | Dynamoelectric machine | |
| US2183397A (en) | Dynamo-electric machine | |
| GB494606A (en) | Improvements in and relating to alternating-current dynamo electric machines | |
| US1976554A (en) | Dynamo-electric machine | |
| US266235A (en) | House | |
| GB472505A (en) | Improvements in and relating to electric generators | |
| GB474918A (en) | Improved dynamo electric machine | |
| GB104535A (en) | Improvements in Dynamo Electric Machinery. | |
| GB178974A (en) | Improvements in means for regulating the current output of dynamo electric generators | |
| GB389158A (en) | Improvements in and relating to dynamo electric machines | |
| GB302497A (en) | Improvements in and relating to low-voltage continuous current motors | |
| US264227A (en) | beardslee | |
| US638070A (en) | Dynamo-electric machine. | |
| GB628373A (en) | Improvements in or relating to magneto electric generators | |
| GB212619A (en) | Improvements in and relating to dynamo-electric machines | |
| GB543324A (en) | Improvements in dynamo-electric machines | |
| GB293508A (en) | Improvements in dynamo electric machines | |
| GB202062A (en) | Improvements in and relating to magneto electric generators and the like |