DE279545C - - Google Patents
Info
- Publication number
- DE279545C DE279545C DENDAT279545D DE279545DA DE279545C DE 279545 C DE279545 C DE 279545C DE NDAT279545 D DENDAT279545 D DE NDAT279545D DE 279545D A DE279545D A DE 279545DA DE 279545 C DE279545 C DE 279545C
- Authority
- DE
- Germany
- Prior art keywords
- current
- transformer
- current transformer
- auxiliary transformer
- capacitor
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 1
- 230000008859 change Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
- G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transformers For Measuring Instruments (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE279545C true DE279545C (cs) |
Family
ID=535449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT279545D Active DE279545C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE279545C (cs) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977148C (de) * | 1954-06-16 | 1965-05-06 | Messwandler Bau Gmbh | Schaltungsanordnung zum Fehler- und Fehlwinkelabgleich an mit mehreren Primaeranzapfungen ausgefuehrten Spannungswandlern |
| FR2203078A1 (cs) * | 1972-10-13 | 1974-05-10 | Contraves Ag | |
| EP0004286A3 (de) * | 1978-03-14 | 1979-10-17 | CMC Carl Maier + Cie AG | Fehlerstromschutzschalter |
-
0
- DE DENDAT279545D patent/DE279545C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977148C (de) * | 1954-06-16 | 1965-05-06 | Messwandler Bau Gmbh | Schaltungsanordnung zum Fehler- und Fehlwinkelabgleich an mit mehreren Primaeranzapfungen ausgefuehrten Spannungswandlern |
| FR2203078A1 (cs) * | 1972-10-13 | 1974-05-10 | Contraves Ag | |
| EP0004286A3 (de) * | 1978-03-14 | 1979-10-17 | CMC Carl Maier + Cie AG | Fehlerstromschutzschalter |
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