GB1074801A - Improvements relating to electric transformers - Google Patents
Improvements relating to electric transformersInfo
- Publication number
- GB1074801A GB1074801A GB343163A GB343163A GB1074801A GB 1074801 A GB1074801 A GB 1074801A GB 343163 A GB343163 A GB 343163A GB 343163 A GB343163 A GB 343163A GB 1074801 A GB1074801 A GB 1074801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flanges
- coils
- paper
- assembly
- coil assembly
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Abstract
1,074,801. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 20, 1964 [Jan. 28, 1963], No. 3431/63. Heading H1T. Concentric cylindrical coils 1, 2, 3, 4 (Fig. 1) of a layer wound coil assembly of a transformer are insulated from one another by layers of paper 5 and are provided at their ends with insulating flanges 8 of cast resin material which key into recessed ends 10 of the paper insulation 5. The insulation, which may be of kraft paper, is wound on to the coils and a suitable recess 10 is provided by using temporary flanges. The assembly is completed by replacing the temporary flanges with flanges of filled epoxy resin which may be either cast in situ, completely cured or partially cured in which case the flange will soften to fit exactly into the end region of the paper insulation before curing is completed. Radial struts 7 and axial spacers 6 between the coils provide ducts which are supplied through holes 11 in the flanges with oil coolant. In a further embodiment (Figs. 2 and 3, not shown) temporary flanges are provided to support coils and coolant pipes during the winding of the coil assembly. After providing an earthed shield 27 and completing the winding, pressboard cylinders which enclose the coil assembly are fitted and epoxy resin is poured into the end regions of the assembly and subsequently cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB343163A GB1074801A (en) | 1963-03-28 | 1963-03-28 | Improvements relating to electric transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB343163A GB1074801A (en) | 1963-03-28 | 1963-03-28 | Improvements relating to electric transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1074801A true GB1074801A (en) | 1967-07-05 |
Family
ID=9758214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB343163A Expired GB1074801A (en) | 1963-03-28 | 1963-03-28 | Improvements relating to electric transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1074801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720897A (en) * | 1971-08-09 | 1973-03-13 | Westinghouse Electric Corp | Electrical inductive apparatus |
-
1963
- 1963-03-28 GB GB343163A patent/GB1074801A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720897A (en) * | 1971-08-09 | 1973-03-13 | Westinghouse Electric Corp | Electrical inductive apparatus |
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