GB189814293A - Improvements in Systems of Electrical Distribution. - Google Patents
Improvements in Systems of Electrical Distribution.Info
- Publication number
- GB189814293A GB189814293A GB189814293DA GB189814293A GB 189814293 A GB189814293 A GB 189814293A GB 189814293D A GB189814293D A GB 189814293DA GB 189814293 A GB189814293 A GB 189814293A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- transformer
- converter
- employed
- supplied
- 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
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Multiple Motors (AREA)
Abstract
14,293. Belfield, R., [Scott, C. F., and Lamme, B. G.]. June 28. Electric railways and tramways.-Relates to means by which direct - current motors can be operated at variable speeds from an alternating- current circuit. A rotary transformer or converter is employed to convert the alternating current into a direct current, a step-up or stepdown transformer provided with means for altering the relative length of the primary and secondary being employed to vary the electromotive force. The Figure shows the system applied to an electrically-operated vehicle. The alternating current is supplied from an overhead conductor 1, through a trolley 5, to a transformer 4. The secondary of a transformer is divided into sections, and is connected to the converter 11 through a switch 9. The motors 16 are supplied with a direct current. In order to secure a constant speed of the converter, a synchronous motor 17 may be supplied with current from one of the sections of the transformer. A separate exciter may be employed, or a battery 22, for starting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB189814293T | 1898-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189814293A true GB189814293A (en) | 1899-04-29 |
Family
ID=32140371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB189814293D Expired GB189814293A (en) | 1898-06-28 | 1898-06-28 | Improvements in Systems of Electrical Distribution. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189814293A (en) |
-
1898
- 1898-06-28 GB GB189814293D patent/GB189814293A/en not_active Expired
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