GB683621A - Improvements in or relating to electric transformers - Google Patents
Improvements in or relating to electric transformersInfo
- Publication number
- GB683621A GB683621A GB2646249A GB2646249A GB683621A GB 683621 A GB683621 A GB 683621A GB 2646249 A GB2646249 A GB 2646249A GB 2646249 A GB2646249 A GB 2646249A GB 683621 A GB683621 A GB 683621A
- Authority
- GB
- United Kingdom
- Prior art keywords
- primary
- transformer
- circuit
- windings
- flux
- 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)
- Regulation Of General Use Transformers (AREA)
Abstract
683,621. Transformers. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. Oct. 13, 1950 [Oct. 14, 1949], No. 26462/49. Drawings to Specification. Class 38 (ii). An electric transformer having primary and secondary windings arranged on a limb of the transformer core, has an additional winding arranged to be connected to form a part of a circuit comprising two windings with equal numbers of turns both arranged to embrace the main magnetic flux in the transformer limb and to be connected in parallel as regards this main flux but to be connected in series as regards the leakage flux between the primary and secondary windings, the circuit being comprised of the additional winding and either the primary or secondary winding or a further additional winding, and having a high resistance compared with the resistance of the primary and secondary windings, so as to form a damping circuit to reduce or prevent oscillation due to the leakage flux. The additional windings are arranged so as to embrace the transformer leakage flux. A frequency responsive element, such as a capacitor, may be included in the damping circuit so as to reduce the circulating currents therein at the supply frequency. A resistance may also be placed in the damping circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2646249A GB683621A (en) | 1949-10-14 | 1949-10-14 | Improvements in or relating to electric transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2646249A GB683621A (en) | 1949-10-14 | 1949-10-14 | Improvements in or relating to electric transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB683621A true GB683621A (en) | 1952-12-03 |
Family
ID=10244014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2646249A Expired GB683621A (en) | 1949-10-14 | 1949-10-14 | Improvements in or relating to electric transformers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB683621A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000022634A1 (en) * | 1998-10-09 | 2000-04-20 | Ir. Buro Vanderveen | Power transformer with internal differential mode distortion cancellation |
-
1949
- 1949-10-14 GB GB2646249A patent/GB683621A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000022634A1 (en) * | 1998-10-09 | 2000-04-20 | Ir. Buro Vanderveen | Power transformer with internal differential mode distortion cancellation |
US6087822A (en) * | 1998-10-09 | 2000-07-11 | Ir.Buro Vanderveen | Power transformer with internal differential mode distortion cancellation |
GB2363523A (en) * | 1998-10-09 | 2001-12-19 | Ir Buro Vanderveen | Power transformer with internal differential mode distortion cancellation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB683621A (en) | Improvements in or relating to electric transformers | |
JPS5623723A (en) | On-load voltage regulating transformer | |
FR2321208A1 (en) | Detection of leakage current to earth - uses differential current transformer whose core is saturated by leakage current | |
GB863403A (en) | Improvements in or relating to interphase transformers | |
GB1072974A (en) | Improvements in or relating to electric circuit arrangements including inductive elements | |
GB517606A (en) | Improvements in or relating to means for suppressing radio interference by electrical apparatus | |
GB939444A (en) | A transformer winding arrangement | |
GB661340A (en) | Improvements in and relating to electric transformers | |
GB616428A (en) | Improvements in and relating to electric transformers | |
GB918281A (en) | Improvements in and relating to transformer windings | |
GB865469A (en) | Improvements in or relating to leakage reactance transformers | |
GB617706A (en) | Static transformer for arc welding | |
GB660089A (en) | Improvements in and relating to electric induction devices particularly transformers | |
GB546793A (en) | Improvements in and relating to moving coil voltage regulating transformers | |
GB547313A (en) | Electrical voltage regulators | |
GB303320A (en) | Improvements in electrical transformers | |
GB689488A (en) | High voltage transformers | |
GB751381A (en) | Electrical coupling of movable and fixed apparatus | |
GB740467A (en) | Improvements in current transformers | |
GB379667A (en) | Improvements in and connected with transformers of the static type | |
GB857915A (en) | Improvements in or relating to laminated electromagnetic cores | |
GB644973A (en) | Improvements in tapping arrangements for transformer windings | |
GB714113A (en) | Improvements in or relating to electric transformers | |
GB708980A (en) | Improvements in or relating to transformer arrangements | |
GB565354A (en) | Improvements in or relating to regulating arrangements for electrical circuits |