GB670014A - Improvements in and relating to electromagnetic induction apparatus - Google Patents
Improvements in and relating to electromagnetic induction apparatusInfo
- Publication number
- GB670014A GB670014A GB986/49A GB98649A GB670014A GB 670014 A GB670014 A GB 670014A GB 986/49 A GB986/49 A GB 986/49A GB 98649 A GB98649 A GB 98649A GB 670014 A GB670014 A GB 670014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- windings
- transformer
- forms
- voltage winding
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
- H01F41/005—Impregnating or encapsulating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
670,014. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 13, 1949 [Jan. 13, 1948], No. 986/49. Class 38 (ii). [Also in Group V] A transformer, more particularly a current transformer, comprises a bar-type high voltage winding 2 associated with a magnetic core 17, a low voltage winding 18, 19, 20 between the core and the high voltage winding and surrounding the core, the core and the windings being embedded in a body 1 of resilient, weather resistant insulating material such that the material forms the major insulation between the three components and also forms the entire outer covering of the transformer. The windings and the core are assembled in their relative positions in a mould and a moulding compound, such as rubber isobutylene, is forced into the mould under high pressure so that it fills the cavities between the windings and the core and also forms an outer casing around the assembled components. The moulding is then cured or vulcanized for a requisite time at a high temperature. In a modification is described a current transformer with a multi-turn primary winding.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US670014XA | 1948-01-13 | 1948-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670014A true GB670014A (en) | 1952-04-09 |
Family
ID=22073103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB986/49A Expired GB670014A (en) | 1948-01-13 | 1949-01-13 | Improvements in and relating to electromagnetic induction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201734A (en) * | 1960-08-03 | 1965-08-17 | Fed Pacific Electric Co | Transformer core and winding |
-
1949
- 1949-01-13 GB GB986/49A patent/GB670014A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201734A (en) * | 1960-08-03 | 1965-08-17 | Fed Pacific Electric Co | Transformer core and winding |
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