GB274895A - Improvements in or relating to electric transformers - Google Patents
Improvements in or relating to electric transformersInfo
- Publication number
- GB274895A GB274895A GB19496/27A GB1949627A GB274895A GB 274895 A GB274895 A GB 274895A GB 19496/27 A GB19496/27 A GB 19496/27A GB 1949627 A GB1949627 A GB 1949627A GB 274895 A GB274895 A GB 274895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- current
- primary
- apparent
- 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
- 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)
- Transformers For Measuring Instruments (AREA)
Abstract
274,895. International General Electric Co., Inc., (Assignees of Allgemeine Electricitõts-Ges.). July 23, 1926, [Convention date]. Transformers.-A current transformer has its apparent internal resistance made to vary with the primary current so that the magnetizing current is proportional to the primary current and discrepancies between the primary and secondary current can be rendered constant or eliminated. The primary conductor a of a current transformer passes through two identical cores b, c, the secondary winding d on the core c comprising fewer turns than the winding e on the core b with which it is in series, the apparent resistance of the windings being great as compared with that of the external secondary load. The secondary current will be of such a magnitude that the secondary ampere turns affecting the core b will be greater than the primary ampere turns, the opposite being the case as regards the core c, so that the core b will act as an inductive load upon the core c, its apparent resistance varying with variations in the primary current.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE274895X | 1926-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB274895A true GB274895A (en) | 1928-10-22 |
Family
ID=6022796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19496/27A Expired GB274895A (en) | 1926-07-23 | 1927-07-22 | Improvements in or relating to electric transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB274895A (en) |
-
1927
- 1927-07-22 GB GB19496/27A patent/GB274895A/en not_active Expired
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