GB445964A - Improvements in current transformers - Google Patents
Improvements in current transformersInfo
- Publication number
- GB445964A GB445964A GB3691734A GB3691734A GB445964A GB 445964 A GB445964 A GB 445964A GB 3691734 A GB3691734 A GB 3691734A GB 3691734 A GB3691734 A GB 3691734A GB 445964 A GB445964 A GB 445964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- primary
- core
- distributed over
- common
- circumference
- 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
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
445,964. Current transformers. HARLAND ENGINEERING CO., Ltd., 196, Greengate, Manchester, and CATON, G., B.E.P. Works, Alloa, Clackmannanshire. Dec. 24, 1934, No. 36917. [Class 38 (ii)] A current transformer comprises an annular core 43, a secondary winding 45 distributed over the whole circumference of the core, a primary winding 44 distributed over at least half the circumference of the core, and a cylindrical casing 42 forming a bushing insulator surrounding the whole. The primary comprises a stranded conductor connected to a contact stem 51 and to a terminal head 49 and is spaced from the secondary by concentric insulating cylinders 46, 47. Switching means may be provided for connecting the primary turns in series or parallel. In a modification, Fig. 2 (not shown), a pair of annular cores carrying separate secondary windings are housed in a common bushing insulator and linked by a common primary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3691734A GB445964A (en) | 1934-12-24 | 1934-12-24 | Improvements in current transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3691734A GB445964A (en) | 1934-12-24 | 1934-12-24 | Improvements in current transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB445964A true GB445964A (en) | 1936-04-22 |
Family
ID=10392218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3691734A Expired GB445964A (en) | 1934-12-24 | 1934-12-24 | Improvements in current transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB445964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117162A (en) * | 2011-11-17 | 2013-05-22 | 上海Mwb互感器有限公司 | Primary transition device of current transformer and current transformer |
-
1934
- 1934-12-24 GB GB3691734A patent/GB445964A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117162A (en) * | 2011-11-17 | 2013-05-22 | 上海Mwb互感器有限公司 | Primary transition device of current transformer and current transformer |
| CN103117162B (en) * | 2011-11-17 | 2016-08-10 | 上海Mwb互感器有限公司 | Transition apparatus of current transformer and current transformer |
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