GB172959A - - Google Patents
Info
- Publication number
- GB172959A GB172959A GB3346621A GB3346621A GB172959A GB 172959 A GB172959 A GB 172959A GB 3346621 A GB3346621 A GB 3346621A GB 3346621 A GB3346621 A GB 3346621A GB 172959 A GB172959 A GB 172959A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- transformer
- sectors
- circuits
- winding
- 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)
- Ac-Ac Conversion (AREA)
- Linear Motors (AREA)
- Motor And Converter Starters (AREA)
Abstract
172,959. Della Riccia, A. Dec. 13, 1920, [Convention date]. Regulating transformers.-Two symmetricallyarranged secondary circuits R1, R2 are supplied from an auto-transformer winding T, Fig. 2, by connecting one terminal of each circuit to one end of the transformer winding, the other terminals of the circuits being connected to contacts 2, 3 which are movable by equal amounts and in opposite directions along the winding. For threephase circuits, three auto-transformer windings, preferably connected in delta, are used. An arrangement for controlling two three-phase motors, Fig. 4, comprises a double set of contactpieces 1 - - 9 connected in pairs to points of the transformer windings, and six sectors a - - f, each of which is connected to one end of one of the six windings A1 - - C1, D2 - - F2 of the motors. The other ends of the motor windings are connected to the main terminals 1, 4, 7 of the transformer windings. Six movable contact members A - - F are provided for connecting the sectors to the various contact-pieces in succession. The contact-pieces and sectors may be arranged on a disc, as shown, or on a cylinder or they may be placed in superposed rows.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER51783D DE371894C (en) | 1920-12-14 | 1920-12-14 | Single or multi-phase autotransformer |
| US51956021 US1426775A (en) | 1920-12-14 | 1921-12-02 | Autotransformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB172959A true GB172959A (en) | 1923-01-18 |
Family
ID=25992123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3346621A Expired GB172959A (en) | 1920-12-14 | 1921-12-13 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1426775A (en) |
| CH (1) | CH104193A (en) |
| DE (1) | DE371894C (en) |
| FR (1) | FR544266A (en) |
| GB (1) | GB172959A (en) |
| NL (1) | NL12417C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20023972U1 (en) | 2000-12-15 | 2008-04-10 | BSH Bosch und Siemens Hausgeräte GmbH | Solenoid valve for a refrigerant circuit |
-
1920
- 1920-12-14 DE DER51783D patent/DE371894C/en not_active Expired
-
1921
- 1921-12-02 US US51956021 patent/US1426775A/en not_active Expired - Lifetime
- 1921-12-05 CH CH104193D patent/CH104193A/en unknown
- 1921-12-07 FR FR544266D patent/FR544266A/en not_active Expired
- 1921-12-08 NL NL21010A patent/NL12417C/xx active
- 1921-12-13 GB GB3346621A patent/GB172959A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH104193A (en) | 1924-04-01 |
| DE371894C (en) | 1923-03-22 |
| FR544266A (en) | 1922-09-19 |
| NL12417C (en) | 1925-01-15 |
| US1426775A (en) | 1922-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB171836A (en) | Improvements in and relating to electric transformers and the like | |
| GB172959A (en) | ||
| JPS56131916A (en) | Single-phase on-load tap-changing transformer | |
| JPS5623723A (en) | On-load voltage regulating transformer | |
| US2408017A (en) | Electrical circuit arrangement | |
| US1380983A (en) | Core for electrical apparatus | |
| US2205476A (en) | Transforming apparatus | |
| US3701927A (en) | Location of faults in cables | |
| GB185920A (en) | Improvements in and relating to voltage regulating systems | |
| GB293426A (en) | Improvements in and relating to variable radio transformers | |
| US1764414A (en) | Voltage-control system | |
| GB546153A (en) | Improved apparatus for transformer tap-changing under load | |
| SU1377778A1 (en) | Device for checking transformer windings for mechanical deformation | |
| JPS5629311A (en) | On-load voltage regulating transformer | |
| SU930165A1 (en) | Device for producing shock current | |
| GB175318A (en) | Improvements in or relating to electrical transformers | |
| GB191507081A (en) | Improvements in and relating to Electrical Apparatus Provided with Windings. | |
| JPS5718310A (en) | Transformer | |
| GB565650A (en) | Improvements in and relating to transformer tap-changing apparatus | |
| GB159620A (en) | Improvements in and relating to the cores of electrical transformers and like apparatus | |
| GB182876A (en) | Improved means for controlling the power factor of motor and other circuits | |
| GB161748A (en) | Improvements in and relating to electric induction apparatus | |
| GB866163A (en) | Improvements relating to tap-changing circuits for power transformers | |
| GB251998A (en) | Improvements in and relating to variable static transformers provided with a variable magnetic circuit | |
| GB571871A (en) | Improvements in and relating to on-load tap-changing systems for transformers |