GB399611A - Improvements in electrical current transformers - Google Patents
Improvements in electrical current transformersInfo
- Publication number
- GB399611A GB399611A GB1666832A GB1666832A GB399611A GB 399611 A GB399611 A GB 399611A GB 1666832 A GB1666832 A GB 1666832A GB 1666832 A GB1666832 A GB 1666832A GB 399611 A GB399611 A GB 399611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cores
- current transformers
- core
- secondary windings
- electrical current
- 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
- 238000004804 winding Methods 0.000 abstract 5
- 230000035699 permeability Effects 0.000 abstract 2
- 229910000976 Electrical steel Inorganic materials 0.000 abstract 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
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
-
- 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
- H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
- H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
- H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
399,611. Current transformers. BUCHANAN, J. H., Carnethy, South Drive, Timperley, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 13, 1932, No. 16668. [Class 38 (ii).] A current transformer comprises two cores 2, 3 linked by a common primary winding 1 and carrying respectively two secondary windings 4, 5, one of the cores' having also a tertiary winding 6 connected in parallel with the two series-connected secondary windings. Thus fine adjustments in the transformation ratio may be effected by varying the number of turns on' the tertiary winding 6. The two cores may be of materials of different permeability, e.g silicon steel for the core 2, and high permeability nickel-iron alloy for the core 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1666832A GB399611A (en) | 1932-06-13 | 1932-06-13 | Improvements in electrical current transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1666832A GB399611A (en) | 1932-06-13 | 1932-06-13 | Improvements in electrical current transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB399611A true GB399611A (en) | 1933-10-12 |
Family
ID=10081458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1666832A Expired GB399611A (en) | 1932-06-13 | 1932-06-13 | Improvements in electrical current transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB399611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506454B1 (en) * | 2008-02-22 | 2015-10-15 | Egston System Electronics Eggenburg Gmbh | CONVERTER ARRANGEMENT |
-
1932
- 1932-06-13 GB GB1666832A patent/GB399611A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506454B1 (en) * | 2008-02-22 | 2015-10-15 | Egston System Electronics Eggenburg Gmbh | CONVERTER ARRANGEMENT |
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