GB689077A - Improvements in or relating to electrical induction apparatus - Google Patents
Improvements in or relating to electrical induction apparatusInfo
- Publication number
- GB689077A GB689077A GB5977/51A GB597751A GB689077A GB 689077 A GB689077 A GB 689077A GB 5977/51 A GB5977/51 A GB 5977/51A GB 597751 A GB597751 A GB 597751A GB 689077 A GB689077 A GB 689077A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- yokes
- core
- butt joints
- laminations
- 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
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
-
- 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
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
689,077. Transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 13, 1951 [April 8, 1950], No. 5977/51. Class 38 (ii). In a three-phase core 1, for electrical induction apparatus, comprising three separate U-shaped members 2 ... 4 each formed of strips of mag netic material extending from end to end of the member and consisting of a straight winding leg 5 and two yokes 6, 7 normal thereto, the ends of the yokes are worked smooth to present flat joint surfaces and the three members are so arranged relative to each that the yokes of two members 2, 3 meet in a straight line arrangement by butt joints between their respective yoke surfaces 9 to form a complete core loop, and the joint surfaces 11 of the third member 4 form butt joints at 12, 13 with the respective side of, and adjacent the butt joints between, the other two members, thereby forming a core which is T-shaped when viewed in plan. The core material is flatwise bent, grain orientated steel, and the laminations may be bonded together. In a modification, the yoke laminations are separated into groups, and into the space between each group is inserted a magnetic locking lamination which extends over the whole joint area. Reference has been directed by the Comptroller to Specification 657,888.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US689077XA | 1950-04-08 | 1950-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB689077A true GB689077A (en) | 1953-03-18 |
Family
ID=22085469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5977/51A Expired GB689077A (en) | 1950-04-08 | 1951-03-13 | Improvements in or relating to electrical induction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB689077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416353A1 (en) * | 1994-05-09 | 1995-11-23 | Niepenberg Dalex Werke | Arc welding appts. with a transformerless power supply unit |
-
1951
- 1951-03-13 GB GB5977/51A patent/GB689077A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416353A1 (en) * | 1994-05-09 | 1995-11-23 | Niepenberg Dalex Werke | Arc welding appts. with a transformerless power supply unit |
| DE4416353C2 (en) * | 1994-05-09 | 2000-02-17 | Niepenberg Dalex Werke | Arc welding device with a transformerless power supply |
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