GB523800A - Improvements relating to electric current transformers - Google Patents
Improvements relating to electric current transformersInfo
- Publication number
- GB523800A GB523800A GB1317/39A GB131739A GB523800A GB 523800 A GB523800 A GB 523800A GB 1317/39 A GB1317/39 A GB 1317/39A GB 131739 A GB131739 A GB 131739A GB 523800 A GB523800 A GB 523800A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- winding
- supplied
- series
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
523,800. Current measurements. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 14, 1939, No. 1317. Convention date, Jan. 14, 1938. [Class 37] [Also in Group XXXV] Relates to an arrangement for obtaining a current in an A.C. circuit U proportional to the current in a D.C. circuit 3, comprising an inductance 4 having cores 1, 2, the conductor 3 acting as a premagnetizing winding for the cores, and consists in the provision of a further winding 7 which is supplied with a direct current proportional to the A.C. in the circuit U and is arranged to oppose the action of the conductor 3 to increase the operative range of the arrangement. In the' form shown the winding 7 and load 6 are supplied from a rectifier bridge 5 connected in series in the circuit U. In a modification two or more inductances may be used and connected in parallel in the A.C. circuit, the windings 7 being connected in series and supplied from a rectifier bridge in the common A..C. circuit. Alternatively each winding 7 may be supplied separately from a rectifier bridge in series in its appropriate inductance circuit. Specification 514,890 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE523800X | 1938-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB523800A true GB523800A (en) | 1940-07-23 |
Family
ID=6552069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1317/39A Expired GB523800A (en) | 1938-01-14 | 1939-01-14 | Improvements relating to electric current transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB523800A (en) |
-
1939
- 1939-01-14 GB GB1317/39A patent/GB523800A/en not_active Expired
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