GB905486A - Apparatus for supplying two similar variable voltage loads from an a.c. source - Google Patents
Apparatus for supplying two similar variable voltage loads from an a.c. sourceInfo
- Publication number
- GB905486A GB905486A GB3789657A GB3789657A GB905486A GB 905486 A GB905486 A GB 905486A GB 3789657 A GB3789657 A GB 3789657A GB 3789657 A GB3789657 A GB 3789657A GB 905486 A GB905486 A GB 905486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- variable voltage
- motors
- supplying
- source
- transformer
- 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
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
905,486. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. March 4, 1959 [Dec. 5, 1957], No. 37896/57. Class 38 (3). [Also in Group XXXV] D.C. traction motors M1, M2 are supplied with variable voltage current through rectifier bridges 30, 31 by tap-changing gear 16, 17 on separate secondary windings 14, 15 of supply transformer 11. The tap-changing gear is controlled by a driver's controller and the currents in the two secondary windings are equalized by connecting the windings 32, 34 of a current equalizing transformer 33 in the load circuits. Transformer 33 also serves to limit the fault current if one of the motors is short circuited. Specification 832,934 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3789657A GB905486A (en) | 1957-12-05 | 1957-12-05 | Apparatus for supplying two similar variable voltage loads from an a.c. source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3789657A GB905486A (en) | 1957-12-05 | 1957-12-05 | Apparatus for supplying two similar variable voltage loads from an a.c. source |
Publications (1)
Publication Number | Publication Date |
---|---|
GB905486A true GB905486A (en) | 1962-09-12 |
Family
ID=10399769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3789657A Expired GB905486A (en) | 1957-12-05 | 1957-12-05 | Apparatus for supplying two similar variable voltage loads from an a.c. source |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB905486A (en) |
-
1957
- 1957-12-05 GB GB3789657A patent/GB905486A/en not_active Expired
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