GB349005A - Improvements in or relating to rotating electric rectifiers - Google Patents
Improvements in or relating to rotating electric rectifiersInfo
- Publication number
- GB349005A GB349005A GB34566/29A GB3456629A GB349005A GB 349005 A GB349005 A GB 349005A GB 34566/29 A GB34566/29 A GB 34566/29A GB 3456629 A GB3456629 A GB 3456629A GB 349005 A GB349005 A GB 349005A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brushes
- commutator
- brush
- segments
- pair
- 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
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/20—Contact mechanisms of dynamic converters
- H02M1/22—Contact mechanisms of dynamic converters incorporating collectors and brushes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
349,005. Rotary electric rectifiers. GOZZANO, A. and SOC. ANON. ACCUMULATORI DR. SCAINI, 340, Viale Monza, Milan, Italy. Nov. 12, 1929, No. 34566. Convention date, Nov. 13, 1928. [Class 38 (ii).] Commutator switching arrangements. - An alternating current rectifier comprises a commutator mounted on the shaft of a synchronized asynchronous motor, the commutator having alternate segments isolated. Single-phase A.C. is supplied through slip rings and D.C. collected from the commutator by a special arrangement of brush gear. The commutator is composed of active segments 5, 7, 9, 11, interspaced by isolated segments 6, 8, 10, 12, the active segments being connected alternately to the rings 13, 14 to which the A.C. supply is connected. The four brushes are connected together in pairs. They are separately adjustable and set so that when brush 15 leaves an active segment connected to (say) ring 14 brush 16 passes on to an active segment connected to ring 13, the reverse operation simultaneously taking place at the brushes 17, 18, so that at any instant one of the brushes of pair 15, 16 is connected to one ring and one of the brushes of the pair 17, 18 is connected to the other ring. As a fresh set of segments come under the brushes a reversal of connections takes place thus giving complete cycle rectification. Fig. 3 (not shown) is a modified arrangement in which the brushes of each pair are placed close together so as to connect with the same segment. The brush positions are adjustable as before. In a further modification of the arrangement shown in Fig. 5, each pair of brushes is replaced by a single brush having a suitable arc length. By adjusting the brush positions it is possible to make the commutator conduct only for voltages over a certain value. When three-phase supply is available a static transformer is used to convert the supply into two-phase and then each phase is rectified and the outputs combined. Reference has been directed by the Comptroller to Specifications 19729/92 and 8412/94, [both in Class 38, Electricity, Regulating &c.].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT349005X | 1928-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB349005A true GB349005A (en) | 1931-05-12 |
Family
ID=11240768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34566/29A Expired GB349005A (en) | 1928-11-13 | 1929-11-12 | Improvements in or relating to rotating electric rectifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB349005A (en) |
-
1929
- 1929-11-12 GB GB34566/29A patent/GB349005A/en not_active Expired
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