GB620347A - Improvements relating to electric converter systems - Google Patents
Improvements relating to electric converter systemsInfo
- Publication number
- GB620347A GB620347A GB92247A GB92247A GB620347A GB 620347 A GB620347 A GB 620347A GB 92247 A GB92247 A GB 92247A GB 92247 A GB92247 A GB 92247A GB 620347 A GB620347 A GB 620347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- interphase
- transformers
- secondary windings
- auxiliary
- phase
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/068—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode mounted on a transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Ac-Ac Conversion (AREA)
Abstract
620,347. Rectifying. BRITISH THOMSON HOUSTON CO.. Ltd., and READ, J. C. Jan. 10, 1947, No. 922. [Class 38 (ii)] In a rectifying system of the discharge type having np phases divided into n groups of p phases by at least three interphase transformers 5, 6, 7, the interphase transformers have auxiliary or secondary windings 9-14 connected to n auxiliary rectifiers, the transformer connections being arranged so that the voltages applied to the auxiliary rectifiers is equal to (1 + x/y) times the voltage between the main interphase neutral point and the neutral point of the corresponding p phase group, x, y being as defined in the figures. With this arrangement the A.C. and D.C. waveforms approximate to those in a 2 np phase rectifying system. The auxiliary rectifiers may be of the so-called " double-way " type, in which the interphase transformer secondary windings feeding the auxiliary rectifiers may, at least in part, carry two opposite half-waves of current in the same winding (Fig. 4, not shown). Existing installations having interphase transformers with no secondary windings may be converted to operate in a "phase doubled manner by connecting additional interphase transformers, having the necessary secondary windings, in parallel with the original interphase transformers (Figs. 2, 3, not shown). The additional transformers may be of the single phase type. Specification 524,933 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB92147A GB620346A (en) | 1947-01-10 | 1947-01-10 | Improvements relating to electric converter systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB620347A true GB620347A (en) | 1949-03-23 |
Family
ID=9712854
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB430739A Expired GB524933A (en) | 1947-01-10 | 1939-02-09 | Improvements relating to electric converter systems |
| GB92247A Expired GB620347A (en) | 1947-01-10 | 1947-01-10 | Improvements relating to electric converter systems |
| GB92147A Expired GB620346A (en) | 1947-01-10 | 1947-01-10 | Improvements relating to electric converter systems |
| GB1225647A Expired GB630517A (en) | 1947-01-10 | 1947-05-06 | Improvements in and relating to electric converter systems |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB430739A Expired GB524933A (en) | 1947-01-10 | 1939-02-09 | Improvements relating to electric converter systems |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB92147A Expired GB620346A (en) | 1947-01-10 | 1947-01-10 | Improvements relating to electric converter systems |
| GB1225647A Expired GB630517A (en) | 1947-01-10 | 1947-05-06 | Improvements in and relating to electric converter systems |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR977855A (en) |
| GB (4) | GB524933A (en) |
-
1939
- 1939-02-09 GB GB430739A patent/GB524933A/en not_active Expired
-
1947
- 1947-01-10 GB GB92247A patent/GB620347A/en not_active Expired
- 1947-01-10 GB GB92147A patent/GB620346A/en not_active Expired
- 1947-05-06 GB GB1225647A patent/GB630517A/en not_active Expired
- 1947-12-22 FR FR977855D patent/FR977855A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB630517A (en) | 1949-10-14 |
| GB620346A (en) | 1949-03-23 |
| FR977855A (en) | 1951-04-06 |
| GB524933A (en) | 1940-08-19 |
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