GB417787A - Improvements in and relating to electric transformers - Google Patents
Improvements in and relating to electric transformersInfo
- Publication number
- GB417787A GB417787A GB1070933A GB1070933A GB417787A GB 417787 A GB417787 A GB 417787A GB 1070933 A GB1070933 A GB 1070933A GB 1070933 A GB1070933 A GB 1070933A GB 417787 A GB417787 A GB 417787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shunt
- cores
- core
- delta
- windings
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
- H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
417,787. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and MAYO, C. G., 17, Alexandra Road, Rugby. April 10, 1933, No. 10709. [Class 38 (ii).] In a three phase selfcompounded transformer having main and shunt cores delta connected tertiary windings linking only the shunt cores are employed for the suppression of triple frequency harmonics therein. One leg of a three phase core comprises a main core 6 carrying a secondary winding 2 and a shunt core 5, a primary winding 3 linking cores 5 and 6. Triple frequency fluxes produced by magnetic saturation in the shunt core 5 may be suppressed by windings 1 and 7 arranged on the three legs of the transformer in two delta connected sets but in accordance with the invention these harmonics are suppressed by tertiary windings 4 arranged in delta on the shunt cores. A reactor may be connected in series with the delta connected tertiary windings 4 and a controlled triple harmonic voltage allowed to appear at the secondary terminals. Specification 392,193 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1070933A GB417787A (en) | 1933-04-10 | 1933-04-10 | Improvements in and relating to electric transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1070933A GB417787A (en) | 1933-04-10 | 1933-04-10 | Improvements in and relating to electric transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB417787A true GB417787A (en) | 1934-10-10 |
Family
ID=9972829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1070933A Expired GB417787A (en) | 1933-04-10 | 1933-04-10 | Improvements in and relating to electric transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB417787A (en) |
-
1933
- 1933-04-10 GB GB1070933A patent/GB417787A/en not_active Expired
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