GB582607A - Improvements in electric transformers - Google Patents
Improvements in electric transformersInfo
- Publication number
- GB582607A GB582607A GB13653/44A GB1365344A GB582607A GB 582607 A GB582607 A GB 582607A GB 13653/44 A GB13653/44 A GB 13653/44A GB 1365344 A GB1365344 A GB 1365344A GB 582607 A GB582607 A GB 582607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- windings
- transformer
- sliding contact
- voltage
- 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
- H01F29/06—Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding
Abstract
582,607. Transformers. PHILIPS LAMPS, Ltd. July 17, 1944, No. 13653. Convention date, May 5, 1943. [Class 38 (ii)] A transformer having a variable output voltage is provided with an additional winding tightly coupled to one of the transformer windings and connected in parallel with the other winding in order to reduce the leakage reactance. The variable output voltage may be obtained by means of a sliding contact or tappings on the output winding. Figs. 1 and 2 show two arrangements of a transformer having a sliding contact on the secondary winding. In Fig. 1, the input terminals 15, 16 are connected to the primary and secondary windings 13, 14 which are joined in series, the output terminals 18, 19 being joined to a sliding contact 17 and to the point of interconnection between the windings 13, 14 respectively. The leakage reactance between windings 13, 14 is reduced by means of an additional winding 20 tightly coupled to the winding 13 and connected in parallel with the winding 14. The number of turns in the winding 20 is adjusted so that under no-load conditions the voltage induced in this winding is equal to the voltage across the winding 14. In the construction shown in Fig. 2, the additional winding 40 shunted across the secondary winding 33 is wound over the primary winding 31 which is not connected to the secondary winding.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US485769A US2408017A (en) | 1943-05-05 | 1943-05-05 | Electrical circuit arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB582607A true GB582607A (en) | 1946-11-21 |
Family
ID=23929378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13653/44A Expired GB582607A (en) | 1943-05-05 | 1944-07-17 | Improvements in electric transformers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2408017A (en) |
| GB (1) | GB582607A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475611A (en) * | 1944-09-13 | 1949-07-12 | Raytheon Mfg Co | Transformer system |
| US2505288A (en) * | 1946-10-24 | 1950-04-25 | Willard C Hall | Static impedance and phase changing circuit |
| US2583152A (en) * | 1947-11-04 | 1952-01-22 | Westinghouse Electric Corp | Adjustable voltage transformer |
-
1943
- 1943-05-05 US US485769A patent/US2408017A/en not_active Expired - Lifetime
-
1944
- 1944-07-17 GB GB13653/44A patent/GB582607A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2408017A (en) | 1946-09-24 |
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