GB673808A - Improvements in and relating to windings for electric induction apparatus - Google Patents
Improvements in and relating to windings for electric induction apparatusInfo
- Publication number
- GB673808A GB673808A GB31487/50A GB3148750A GB673808A GB 673808 A GB673808 A GB 673808A GB 31487/50 A GB31487/50 A GB 31487/50A GB 3148750 A GB3148750 A GB 3148750A GB 673808 A GB673808 A GB 673808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- main
- legs
- shift
- fluxes
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
673,808. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 28, 1950 [Dec. 31, 1949], No. 31487/50. Class 38 (ii). A three-phase induction apparatus is provided with a magnetic core 1 having three main legs A, B, C, and a pair of auxiliary legs 8, 9, the main primary and secondary windings 2, 3 being wound on the main legs and connected in starstar relationship and a pair of auxiliary equalizing windings 10, 11 being wound on the auxiliary legs and connected in opposition in a closed loop relation so as to reduce to a minimum the neutral shift in the fluxes in the main legs and in the voltages in the main windings. The net fluxes #A, #C are equal in magnitude and symmetrically spaced with respect to #B, but #B is smaller than #A or #B due to the shift of the neutral point caused by the fact that although #4 is equal in magnitude to #7 they are not in phase. The effect of the equalizing windings 10, 11 is to force the fluxes #4, #7 into phase, thus preventing a shift of the neutral point. The core construction may be of wound strip or punched laminations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US673808XA | 1949-12-31 | 1949-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673808A true GB673808A (en) | 1952-06-11 |
Family
ID=22075622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31487/50A Expired GB673808A (en) | 1949-12-31 | 1950-12-28 | Improvements in and relating to windings for electric induction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB673808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0895258A1 (en) * | 1997-07-30 | 1999-02-03 | Trafomodern-Transformatorengesellschaft m.b.H. | Process of mounting a winding on a multi-leg core |
-
1950
- 1950-12-28 GB GB31487/50A patent/GB673808A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0895258A1 (en) * | 1997-07-30 | 1999-02-03 | Trafomodern-Transformatorengesellschaft m.b.H. | Process of mounting a winding on a multi-leg core |
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